DESIGNING Slope ship Without doubt recent proliferation Slope Soarer kits has made much easier find plane fits needs still might difficult find ship ideal Maybe want ship will rip tear small slope doing high-G gutwrenching maneuvers maybe want will use up lotsa airspace huge fast smooth maneuvers Whatever ideal Slope site plane might way get ex actly what looking design plane yourself Im going try kid saying designing Slope ship easy because its lot time effort go designing refining Sailplane anyone says differ ently either giving line simply has never tried doesnt know better Occa sionally will come across plane flies great right off hoard few far between Most designs take months years research design construction testing redesign testing come up desired re suIts Dont get wrong idea though Al though time-consuming stuff im measurably fun incredibly rewarding plane reaches its final form have ever urge design work just werent sure start maybe following piece will give inspiration little push right direction article entitled Looking Miss Go-Fast writ ten Pete Marshall Slope Soaring News gives some basic parameters Slope ship de Left Bob Reynolds what may ultimate Slope Scale ship F-14B Super Tomcat spans almost 8 ft weighs about 75 lb and3 represents total Slope madness Right Bob started out glass fuselage ducted-fan kit added own slightly modified flying surfaces created Slope Soaring dream beast will fly International Soaring RC Scale Fun Fly Tn-Cities WA Morey photo Left wings full sweep position ship spans 36 inches compared 60-in span wings full forward Using pow erful landing gear servo wings fully movable flight CG Rich Spicer photo Right Rich Spicer designed built wing Sloper 14 years ago Rich presents some interesting ideas plane concept swing wings column Rich Spicer pooso 48 Model Aviation Radio Control Slope Soaring Mark Triebes 20794 Kreisler Ct Saratoga CA 95070 Kam-U comes same stable Mini-I its much docile simple build easy fly Kam-U good aileron trainer just fun flier Ken Williams photo Mini-I spans just 285 weighs less 10 oz dont let fool Mini-I all-out Sloper good eyes steady thumbs Photo Williams signs Could ad Slope Soaring News personals column Hi Gorgeous Im good-looking aggres sive new pilot yen exotic Ive sembled three four kits can build pretty well now fly inverted make right moves time get bored flying rudder ships Im seriously ailerons Aerobatics want go faster aileron trainer just wont sleek beautiful aerobatic very very fast also sensi tive have no vices except speed love moonlit walks windswept ridges fresh ocean gales under wings thrive getting loaded lead kind kit live imagination can meet fall love sounds like Pete might little bit loaded himself maybe just kinda confused us Slope Soarers have never kind always fly straight level MT sounds like kind girl youd like meet read Ill introduce you can go far want world speed Aerobatics Well put together Aerobatic Sloper capa ble speeds over 100 mph 300-ft-dia loops four five axial rolls going straight up article about design parameters proportions will help select basic skele ton own Miss Go-Fast shape alive imagination job will flesh out framework have decided upon Learn before turn say can t draw cant build grab some pencils erasers rulers french curves lots drawing paper Start sketching until looks right first read stuff Fuselage basic function fuselage hold wing tail apart proper inci dence angle other fuselage also comes handy stuff full radio gear lots lead Its shape isnt particularly important So original shape pleases just wont come out imagination dont give up Miss Go-Fast could DeHavilland Dash 8 Reno P-5 Iwhatever turns Just stay within design parameters Wingspan Range 60-80 optimum 70-78 want go real fast youve gotta get really high So want get up high still able see plane need some real wingspan Plus other things being equal big wings fly better little wings Aspect ratio formula calculating aspect ratio wingspan squared divided wing area Range 81 111 optimum 101 111 aspect ratio below 61 performance soarability drops noticeably high wing load ings airplane wont climb Out very well nor will climb very high Continued page iSO HANDSOFFCUTII Especially Designed Tapered Wings unique device cutting sigh quality foam wing coree HANDS OFF cuffing both sides same time Available hardware package assemble own board-Specify 30 -40 -50 or 60 ordering size may changed anytime Man Chord tandard Larqer chords available Easy assemble Requires 24 volt Variable Output Power Supply DEALERS WANTED Hunds Off Cut II hardware pactraQe $8750 S & H 24 Volt Variable Output power supply552-50 S & H VIDEO FOAM SHOP Foam Shop Part OneCutting Foam Wings sour long cuts made using HANDS OFF CUT II V H5Only $2995 includes 5 & H lower 48 Foam Shop Part TwoCutting Foam Fuselages sour long cuts made using simple bow VHSOnly $2995 includes 5 5 H lowe 48 SUPER BOND CONTACT ADHESIVE T5e best contact cement have ever used Only $375 6 oz squeeze bottle Enough br 4 1400 square inch wingAdd $200 S & H lower 48 118 inch Phenolic 4 5 36 Board Templates Only $500 S & H NOR-RAY PRODUCTS 5008 Sandbeach Road ISAWichita Falls Texas 78311 Tel f817 6824476 Ruff Stuff $115 per sheet CLAYLaNOSCAPES Stay Tray $210 Mini Glue lipsAdd 20% iftcIoder I- \I1iIi~ 4 $105 Tee Good Stuff Bar AIi~AppIied Design Corporation $300 CA 90610 Mipi RnndqrMini Saw $850 $275 / u u HOLES IN THE SKYE LANIER RCu REBEL CAT NO 78129 A GREAT FLYING BIPE THAT IS CAPABLE OF ANY MANEUVER YOUVE GOT THE GUTS TO DOI Fuselage Length 35Wing Span 50 Rec Engine Size 45-60 4 Stroke 60-80Area 700 sq Flying Weight 6-7 lbsRadio Channels 4 Available favorite hobby dealerReplacement parts available Dealer distributor inquiries Invited Write today free color catalog PO Box 458 Oakwood Georgia 30566 Made USA 404-532-6401 April 1990 49 I Must know hobby business people 2 Must bea capable model builder andflyer 3 Must have Business Administration Degree equivalent practical experience 4 Must have compulsion manage business profitably have nota sit posterior tell people what job will expected bookkeeping cost accounting majority sales advertising public relations work will certainly need fluent typewriter computer keyboard will expected answer djfficult letters fire nice guy isnt getting job done see dont run afoul hundreds government rules regulations will expected responsiblefrr design production except effects cost sales Pay $4000000 range Smith will give better living $10000000 New York Chicago San Francisco Send resume Duke Fox 2400 Knoxville St Fort Smith AR 72901 Fox Manutactulng Co 5305 Towson Avenue 12~yWLJ Fort Smith AR 72901 Phone 501 6461656 PILOT GLASSES. HOW VALUABLE IS YOUR EYESIGHT Adjustable side frames...... free-flow ventilation Extremely light weight added comfort Blocks harmful ultraviolet radiation Attractive case included ________Wraparound frame fits comfortably over prescription glasses tz mist coated scratch resistance Made entirely Polycarbonate impact protection ANSI Z871 specifications Available in Clear shop work $1325 Amber overcast days & late afternoons S14~ Gray S14~ & Mirror S19~ sunny days CA Mask S15~ Paint Mask S2O~ member club hit prop blade thrown 60 engine close range tip blade struck Safety Plus glasses saved him serious injury possibly loss eye incident convinced everyone should wear safety glasses near model airplane engines being run upEd Saul Secretary Treasurer Pikes Peak RC Club EL Prices include shipping end handling FLU5 See hobby dealer first doesnt have what need order direct SAFETY PLUS PO Box 1173 Dept iM Clinton MS 39056 ORDERS ONLY 1-800-842-7233 Cant US Mississippi 601 924-9640 /MO RC Aerobatics/Van Putte Continued page 146 ate pressure would tend limit entries serious among us providing slight increase revenue needed case Raising number events flown quality would have effect promoting participation FAI local level program participants changes would pose very little hardship would take little effort administer mostly consti tute change paperwork system have workable scrap instead fine tun ing makes about much sense throwing family car away because needs gas second item K-Factor Paul Vergers column NSRCA District 3 VP Paul has airplane well-known design has problems wont mention name air plane because Pauls problems typical design may result modifications made us similar prob lems can certainly empathize what Paul wrote modified airplane flew like toad Well Mike Hayden Jim Fife spent day last Saturday trying detoad thing help new whiz-bang Futaba 1024 radios After mixes adjustments readjust ments rereadjustments finally got thing good could get Did succeed making toad prince Actually what got toad life support lot better some things $700 radio wont cure moral Sometimes should just give up move cant make pig sing annoys pig RC Giant Scale/de Vries Continued page 47 6 its stupefying compendium thing youd want know subject great photographer artist Dave goes well beyond techniques wire-cutting wing cores details foam fuselages floats scale cowls fiberglass spinners built simple-tomake foam forms host foam uses large Sailplanes devotes chapter repair damaged foam wings other model parts Its book well worth studying RC Slope Soaring/Triebes Continued page 49 Sweepback Leading edge less 100 Trailing edge less 50 optimum 00 trailing edge sweephack Jetlike sweepback does en hance looping maneuvers gives pitch sta bility much same dihedral does roll Dihedral Optimum 0-2 0 Jf opt 00 dihedral remember wings will look like droop flight Add 1-2-in block under wing tip joining wing halves wings will look right air course know dihedral amounts over 5 0 will give unacceptabletoo much stability roll want roll baby right Airfoil section cant go too far wrong Eppler 374 RG-15 airfoil new Se hg 5D6060 supposed hot kind en hanced Eppler 374 Before deciding thin out airfoil think about what kind flying site youll using site tight doesnt have much operating space below crest go 9-11 % section thickness thinned airfoils tend mush out lose speed pull tight high-G maneu vers other hand intend operate fast lady big hills big lift build 75% Eppler 374 keep maneuvers big smooth fast airfoil big sky environment Wing area vs wing loading An optimum wing area between 500 550 sq greater wing area greater overall weight must arrive target wing load ing about 15-17 oz per sq ft unballasted Speed directly proportional wing load ing forget about building light Instead build strong very clean avoiding unnecessary weight tail extra ounce 150 Model Aviation WANTED Hands Business Manager REQUIREMENTS IULTIMATESPORT RC 255 East Ashland/PO Baa 727/Sada Springs Ideha 83276 $1995 IDEO REVIEW THE CLOUD DANCERS INTERNATIONAL R/C SHOW TEAM MEET THE WORLD RENOWNED CLOUD DANCERS SEE THE EXCITING FOOTAGE OF THEIR F- 15 EAGLES GIANT SCALE WARBIRDS JUMPERS AND THE FAMOUS FLYING MACHINE MUST FOR YOUR VIDEO COLLECTION! 1 HOUR AND 30 MINUTES OF THE CLOUD DANCERS INACTION FINISHED PRODUCT !FL YING! VOL3 IN-DEPTH KIT AND PRODUCT REVIEWS BUILDING SEGMENTS AND EXCITING FLYING SCENES FEATURING SLIPERLUCKYFLY 2JOE PINKSTON ARF SPORT LOW WING AIRPLANE D & R AIRCRAFTS 115TH P47 INNOVATIVE MODELS MASTER SCALE HURRICANEPICAS NEW 15TH SCALE SPITFIREINNOVATIVE MODELS SAAB GRIPENFORMERLY MIKES MODELS SATELLITE CITYS UFO GLUEALSO ROBINAIRES CUSTOM RETRACT SYSTEM APPROXIMATELY 1 HOUR 45 MINUTES SAVE APPROXIMATELY $30006 WITH MANUFACTURERS DISCOUNT COUPONS INCLUDED IN VOLUME 3 [v32][b-1-10-1-10]] AVAILABLE ONLY FROM RC VIDEO REVIEW MAGAZINE 13360 KINGSBURY DR. WEST PALM BEACH FL 33414 790-3435 EACH TAPE $1995 PLUS $250 SHIPPING AND HANDLING CANADIAN ADD $600 FLORIDA ORDERS ADD 6% SALES TAX VISA AND MASTERCUARCE ALSO AVAILABLE ARE VOLUMES 1 AND 2 KING ORANGE AND JETS OVER DELAND NOW AVAILABLE TED AMOUNT OF YEARLY SUBSCRIPTIONS 5 FOR SIX VOLUMES PLUS S & H tail youll need four ounces nose bal ance Chord taper Avoid tip chords under four inches considering Reynolds Number related chord length Undesirable tip stall ag gravated narrow tip chord and/or high taper ratio Purely rectangular Hershey Bar wing planforms give best stall characteristics look awful slow down roll rate Form follows function wing design Tail area horizontal stabilizer has other function aside providing pitch control aircraft nonsymmetrical wing air foil stabs main purpose counter pitch-down tendency higher speeds Unless decide fully symmetrical wing section youll need stab area least 10% wing area just provide pitch stability high-speed Man turer Hi Perfornia IS aft CULPEPPER LS INC 2526 Washington DubuqueIA 52001 319/583-4130 flight stab area 12-15% desirable pro vide adequate pitch authority during low-speed flight takeoff landing Designing own Slope ship Part Two Slope fliers hear fairly regular basis Jef Raskin Jef member San Francisco Vultures active advocate Slope Aerobatics Vultures few clubs around actually hold Aerobatics contests can hope will change more people become involved flying Aerobatics Jef has written long article about optimal de sign acrobatic Sailplanes includes helpful ideas Sailplane design well set rules Slope Aerobatics contests interested building Sloper will truly . ngine 9015 2cyc Wing Area 1100 sq 1218 Acyc Machine Cut Wood Kit including wire landing gear & wing jaining hdwe VISA & MC accepted $120 Add 500 past & handling Add 300 far COD Ohia residents add 603 tax Far free Catalag send SASE Air Flair15138787487 PO Bax 2075 Fairborn Ohia 45324 acrobatic blast fly slope reading article definitely step right direc tion can write Jef Box 1638 Pacifica CA 94044 Swing-wings A number columns ago took short look concept variable-sweep wms put out request tried corporate feature Slope ship long after received letter photos resident F3B expert Northern California Rich Spicer familiar Richs reputation skills Sailplane de signer pilot trust best around Nova Slope Racer series Syn ergy F3B ships represent state art sport what has say about swingwingsContinued page 155 od timer perfectly proportioned modeling Cuartlss Robin 049 EngInes -Channel RIO 41 Wingspan Electric Power OploneI 82205 K: 003 Very few full scale aircrs5 ideally suited ta mudel tugs tse appealing old Curtius Rubin burn tfte spruce linen age beautifully propurtiafled rsbber electric glow engines Pass fun build treioerllke performauce Flyline ModelS Catalog 505 Psons 17031 2739593 INE MODELS INC PO Box 2136 FaIrfax VIrgInIa 22031 USA April 1990 151 $1995 SEE IT ON VIDEO FROM BOX TO $599 c Nut use Electric Starters Made 6061 Aluminum strong enough allow over tightening weighs under 1 oz 1 diameter 11/4 long 114 radius nose minimum AMA requirement 5/32 Torq Hole 3/4 thread depth can use thinnest props 11 thread sizes fit engines market Send us order & well mail out fast MADE IN THE USA B C PRODUCTS 111 N Starkweather Pampa Texas 79065 806 665-6361 D103210/32 EZOS8O5-8mm U 123212/32 L106106-1mm D07107-1mm L108108-1mm D81258-125mm LI 101210-125mm L114281/4-28 L351625/16-24 LI 38243/8-24 VISA MASTERCARD MONEY ORDERS ACCEPTED DEALER INQUIRES WELCOME Just read articte thought would pass some information about comments n swing-wing Sloper guess nothing really new Back around 1976 built successfully flew swing-wing test concept intent time evolve Unlimited Class Slope Racer Like lot other prototypes after developing far enough successful flight just didnt have time money incen tive whatever pursue next step devel opment tnstead t went back proven design continued Nova series model 42 long swept fully flying V-tail rudder-vator wing mounting sort shoulder mount wings full-forward configuration span about 50 in rear position about 36 main reason geometry change reduce frontal area rather change ra tio thickness chord top view wings fully retracted planform delta wing wing movement powered Futaba landing gear servo fully movable flight Flight stability during wing movement maintained two principles CG vari able wing movement ailerons de flected slightly negative wings rotated rear ward~ work Rich did Sailplane 14 years ago made great strides represents just first step evolution swing-wing Sloper todays high-strength lightweight materials high-tech radios birth ul timate swing-wing Sloper far away Rich undoubtedly busy work Synergy 4 SO will up rest us pursue concept further Swing-wings Part II Just thought Power Scale movement about maxed out some exceptional little Slope ships along comes Bob Reynolds incredible F-14B Super Tomcat Bob started Jet Hangar ducted-fan fuselage added slightly larger fly ing surfaces fuselage / scale fly ing surfaces What results ship 80 long spans 94 about 8 ft Projected weight 7/2 lb results ENYA15 SS2O SS45 19 80 120 FOX 19 45 60 120 HB ALL SIZES HP40 120 others IRVING ALL K&B 19 61 OS10 15 20 21 50 60 120 108 ROSSI ALL 8-1 SUPERTIGER 11 15 19 60 61to90 5-8mm 1/4-28 7-1mm 8-1mm 1/4-28 5/16-24 1/4-28 6-1mm 5/16-24 1/4-28 1/4-28 1/4-28 5-8mm 12/32 6-1mm 1/4-28 5/16-24 3/8-24 25mm 5-8mm 1/4-28 5/16-24 2000 6000 10-125mm SATIO 30 60 6-1mm 65 1090 7-1mm 120 270 8-125mm WEBRA 28 61 1/4-28 BOto90 8-125mm MALONEY 1003/8-24 wing loading 157 oz/sq ft gain lit tle advantage lift department Bob uses Eppler 214 root transitioning Eppler 222 tip youre thinking Bob might working little less full deck hold cause doesnt end Tomcat will have fully operational swing-wings just like real thing Anyone has seen real thing fly can imagine gorgeous Bobs F-14 will look sweeps back its wings during knife-edge pass across face slope Bob planning have beauty TnCities Scale Fun-Fly Just seeing ship fly will worth price admission Mini-I Kam-U Another small model companies has sprung up increase Slope Soarings popularity K&A Models owned operated Ken Williams ga rage shop companies make up core kit pro ducers Kens kits great examples high-quality products being turned out two kits Ken producing now Mini-I Kam-U Mini-I has 285-in wingspan area 1674 sq flying weight 95 10 oz kit includes machine-cut plywood balsa parts foam core wings plans instructions complete hardware package Mini-I re quires mini two-channel radio system de signed advanced flier Despite its small size light weight Mini-I needs quite bit wind fly Ken noted plane designed advanced flier definitely true Its small size quickness require pilot steady thumbs good eyes experienced Sloper yearning quick acrobatic ship small slopes Mini-I might just what look ing Kam-U designed intermedi ate flier mind wingspan makes very stable plane yet Kam-U incapable perform ing Aerobatics well specifications 50-in wingspan area 2875 sq flying weight 195 20 ounces kit Mini-t very complete good quality Kam-U designed use standard two-channel radio Continued page 156 THIRTY-SIXTH ANNUAL RADIO CONTROL EXPOSITION APRIL 6 7 8 1990 FRIDAY9amto6pm SATURDAY9amto6pm SUNDAY9 am 430 pm TOLEDO SPORTS ARENA ONE MAIN STREET TOLEDO OHIO TICKETS can purchased door ADVANCE sending self-addressed stamped business size 41/aX9 envelope TICKETS 38235 Castle Romulus Ml 48174 orders above 10 tickets must include double postage US orders must include 25 cents per order handling charge foreign orders must include 50 cents per order handling charge need send addressed envelope will provide necessary postage NOTE Registered Express Type Mail Orders Will Accepted! Include check money order US funds made payable Weak Signals R/C Club Ticket prices $400 per day adults $100 per day children 12 under Please specify number Deadline ticket orders March 30 1990 sales final non-refundable Hotel info map area may obtained sending stamped self-addressed envelope ticket address above Any other Exposition information avail able contacting Wayne Yeager co director ticket address phone 313941-6661 We WillHave TraditionalSwap Shop Saturday Night Auction COMPETITION CLASSES NON-MILITARY SPORT SCALE PLANE AMA RulesI MILITARY SPORT SCALE PLANE IAMA Rules PRECISION SCALE PLANE IAMA RulesI PATTERN PLANE f No Jetaf SPORT MONO-PLANE fnon-scale models SPORT BI-PLANE non-scale models OLD TIMER FREE FLIGHT R/C ASSIST R/C SAILPLANE non-scale models f No Engines HELICOPTER R/C CAR COMPETITION BOAT MILITARY SCALE BOAT PLEASURE POWER BOAT WORKING VESSEL-UNARMED presented Weak Signals R/C Club Toledo Ohio uuW April 1990 155 acranarit A- aaynawx MINI-JET SERIES pl3nes feature balsa construction Designed intermediate flyer mind will accept 25 32 size engine use rear exbaust engine exceptional perfomance Get thrill jet hassles ducted fan New Airfoil Version Fixed Gear Retractablcs New Midi jet 40 45 size Airfoil ror Rctractablea New Mini-Mini Jet 049 10 size Airfoil Retracts Mini Mini Jets Mini Jets ktidi-JetE stoee 0 W8i Canopy $1500$6000Re#act $5000 Sid $2000 Wi Canopy $2000d4 $2600 Wifi Catopy Pitie shipped Post paid xnait tuta Pleuc add $4tXl shipping tundling Parrish Aircrait & Scale Models 52S SW 49th Tet Phntation Fl 33317305 581 4477 Both kits went together quickiy easily should pose no problems intermediate builder would like try out planes yourself check local hobby shop contact Ken directly K&A Models Unlim ited 5990 California Ave Long Beach CA 90805 Dont forget about International Soaring RC Scale Fun Fly Tn-Cities WA coming up May 25-27 still plenty time register annual event can get alt info Wil Byers 632 Meadows Drive East Richland WA 99352 phone 1-509/627-5224 RC Electrics/Kopski Continued page 51 Romey Bukolt man behind Concept Mod els about year ago called discuss plans develop Fleet Electric Romey spe cializes Fleets Concept Models has prod uct line wet-powered ones various sizes chatted also referred him Keith Shaw very same bearded gentleman mentioned above Electric Practitioner Su preme Ann Arbor MI seeI said wasnt Santa Some months went got set plans Romey look over mark up did Keith did too few weeks ago got photo shown herein Concept Models pro totype 40 -powered Fleet can tell kit works dont have price availability info time can get particulars Concept 2906 Grandview Blvd Madison WI 53713 Electric Scale getting very popular kit will add considerably trend brings around Astro time recent conversation Bob Boucher told hes repackaging ever-popular Astro Por terfield attractive new box also hes including gear-drive 25 giant step sense now used seeing 05s packaged ever-expanding number Electrics 25 represents whole new level trend Personally think move going very successful Porterfield has con tinuous production ever since about 1978/79 very successful model air Since has get suitable power system fly way get plane-withmotor idea popularized Goldberg Elec tra several years ago has proven very successful marketing idea witness numbers kits-with-motors now market see no reason new Porserfield wont en joy success kind Some errors crept some offerings January issue MA Id like offer some corrections First off Skyvolt article centermost photo page 32 illustrates landing gear tachment caption mentions fiberglass matting text page 143 mentions iron-on cloth reinforcement latter correct have no idea former came theres trace fiberglass either Skyvolt shop Santa Naa Editing Elves Maybe As aside guess should explain some spirit Column coming fromIm writing December 25 1989 Let expand last comtttents bit have using iron-on cloth reinforcement modeling over two decades find GUIDE TO OVER 400 AIRCRAFT MUSEUMS CROSS REFERENCE BY AIRCRAFT SEND $700 postage included TO MICHAEL SLAUGHER See MA 6-89 P110 124 E Foster Parkway Fort Wayne IN 46806-1730 1-219-744-1020 Southwest RC Flying Year round flight school Five day course $350 Learn fLy planes Send SASE complete info to 2818 Carolina NE Albuquerque NM 87110 505 881-3799 extremely easy use very effective Wont work well fiberglass eases com pound curved areas does great job places use white Bondex brand manufactured Wrights Stock #230 002 costs about $1 6/2 x 14-in piece Bondex readily avail able sewing variety stores intended clothing patch material Isis basically cloth material heat-activated adhesive side flows about Wool setting typical household clothes iron use simply cut material outline size put place want cover pa per towel bring hot iron bear towel following time instructions supplied product paper used prevent adhesive soaks its side cloth way through goo-ing up iron glue sticks like crazy balsa ply cloth cools youve got tough sembly Anyway always install such cloth reinforcements first part covering job cant speak materials, find MonoKote goes over cloth nicely case Skyvolt used piece ma terial measuring about 3 x 4/ wrapped around ply landing gear mounting plate extends up sides fuselage about % As installation aid first adhered ply plate two flaps intended go up sides held out heats way fu selage sides masking tape latter re moved course before heat applied side pieces way used hold wet-powered firewalls place same waybut Ive grown out stage now second instance glitches KRC meet article erroneously referred Bill Winters Le Crate design Heron made its appearance meet earlier years Two other minor errors also found wy article opening paragraph page 87 gives participation 110 118a bit larger last years 113 despite rain am making fine point Because size get sing very important As discussed arti cle meet growth field size closing other KRC presently considering alter natives accommodate situation statement page 188 came out plane designed meet QSPRA Formula 120 rules 1/4 scale model accepts 60120 ci engines Features Epoxy glass fuselage foam wing contnsction Dural landing gear scale landing gear dd $1500 lufl kit S175O0 ad han IMPORTED DIESELS A-MAurorabcEDMyygJi.Ah PAWfaplln 8tandrd & R/C.OIg4g Aero Marine VIntag.Sporg & Conteat Send ioo informatlom ICARLSON ENGINE IMPORTS IPhoenI AZ
Edition: Model Aviation - 1990/04
Page Numbers: 48, 49, 150, 151, 155, 156
DESIGNING Slope ship Without doubt recent proliferation Slope Soarer kits has made much easier find plane fits needs still might difficult find ship ideal Maybe want ship will rip tear small slope doing high-G gutwrenching maneuvers maybe want will use up lotsa airspace huge fast smooth maneuvers Whatever ideal Slope site plane might way get ex actly what looking design plane yourself Im going try kid saying designing Slope ship easy because its lot time effort go designing refining Sailplane anyone says differ ently either giving line simply has never tried doesnt know better Occa sionally will come across plane flies great right off hoard few far between Most designs take months years research design construction testing redesign testing come up desired re suIts Dont get wrong idea though Al though time-consuming stuff im measurably fun incredibly rewarding plane reaches its final form have ever urge design work just werent sure start maybe following piece will give inspiration little push right direction article entitled Looking Miss Go-Fast writ ten Pete Marshall Slope Soaring News gives some basic parameters Slope ship de Left Bob Reynolds what may ultimate Slope Scale ship F-14B Super Tomcat spans almost 8 ft weighs about 75 lb and3 represents total Slope madness Right Bob started out glass fuselage ducted-fan kit added own slightly modified flying surfaces created Slope Soaring dream beast will fly International Soaring RC Scale Fun Fly Tn-Cities WA Morey photo Left wings full sweep position ship spans 36 inches compared 60-in span wings full forward Using pow erful landing gear servo wings fully movable flight CG Rich Spicer photo Right Rich Spicer designed built wing Sloper 14 years ago Rich presents some interesting ideas plane concept swing wings column Rich Spicer pooso 48 Model Aviation Radio Control Slope Soaring Mark Triebes 20794 Kreisler Ct Saratoga CA 95070 Kam-U comes same stable Mini-I its much docile simple build easy fly Kam-U good aileron trainer just fun flier Ken Williams photo Mini-I spans just 285 weighs less 10 oz dont let fool Mini-I all-out Sloper good eyes steady thumbs Photo Williams signs Could ad Slope Soaring News personals column Hi Gorgeous Im good-looking aggres sive new pilot yen exotic Ive sembled three four kits can build pretty well now fly inverted make right moves time get bored flying rudder ships Im seriously ailerons Aerobatics want go faster aileron trainer just wont sleek beautiful aerobatic very very fast also sensi tive have no vices except speed love moonlit walks windswept ridges fresh ocean gales under wings thrive getting loaded lead kind kit live imagination can meet fall love sounds like Pete might little bit loaded himself maybe just kinda confused us Slope Soarers have never kind always fly straight level MT sounds like kind girl youd like meet read Ill introduce you can go far want world speed Aerobatics Well put together Aerobatic Sloper capa ble speeds over 100 mph 300-ft-dia loops four five axial rolls going straight up article about design parameters proportions will help select basic skele ton own Miss Go-Fast shape alive imagination job will flesh out framework have decided upon Learn before turn say can t draw cant build grab some pencils erasers rulers french curves lots drawing paper Start sketching until looks right first read stuff Fuselage basic function fuselage hold wing tail apart proper inci dence angle other fuselage also comes handy stuff full radio gear lots lead Its shape isnt particularly important So original shape pleases just wont come out imagination dont give up Miss Go-Fast could DeHavilland Dash 8 Reno P-5 Iwhatever turns Just stay within design parameters Wingspan Range 60-80 optimum 70-78 want go real fast youve gotta get really high So want get up high still able see plane need some real wingspan Plus other things being equal big wings fly better little wings Aspect ratio formula calculating aspect ratio wingspan squared divided wing area Range 81 111 optimum 101 111 aspect ratio below 61 performance soarability drops noticeably high wing load ings airplane wont climb Out very well nor will climb very high Continued page iSO HANDSOFFCUTII Especially Designed Tapered Wings unique device cutting sigh quality foam wing coree HANDS OFF cuffing both sides same time Available hardware package assemble own board-Specify 30 -40 -50 or 60 ordering size may changed anytime Man Chord tandard Larqer chords available Easy assemble Requires 24 volt Variable Output Power Supply DEALERS WANTED Hunds Off Cut II hardware pactraQe $8750 S & H 24 Volt Variable Output power supply552-50 S & H VIDEO FOAM SHOP Foam Shop Part OneCutting Foam Wings sour long cuts made using HANDS OFF CUT II V H5Only $2995 includes 5 & H lower 48 Foam Shop Part TwoCutting Foam Fuselages sour long cuts made using simple bow VHSOnly $2995 includes 5 5 H lowe 48 SUPER BOND CONTACT ADHESIVE T5e best contact cement have ever used Only $375 6 oz squeeze bottle Enough br 4 1400 square inch wingAdd $200 S & H lower 48 118 inch Phenolic 4 5 36 Board Templates Only $500 S & H NOR-RAY PRODUCTS 5008 Sandbeach Road ISAWichita Falls Texas 78311 Tel f817 6824476 Ruff Stuff $115 per sheet CLAYLaNOSCAPES Stay Tray $210 Mini Glue lipsAdd 20% iftcIoder I- \I1iIi~ 4 $105 Tee Good Stuff Bar AIi~AppIied Design Corporation $300 CA 90610 Mipi RnndqrMini Saw $850 $275 / u u HOLES IN THE SKYE LANIER RCu REBEL CAT NO 78129 A GREAT FLYING BIPE THAT IS CAPABLE OF ANY MANEUVER YOUVE GOT THE GUTS TO DOI Fuselage Length 35Wing Span 50 Rec Engine Size 45-60 4 Stroke 60-80Area 700 sq Flying Weight 6-7 lbsRadio Channels 4 Available favorite hobby dealerReplacement parts available Dealer distributor inquiries Invited Write today free color catalog PO Box 458 Oakwood Georgia 30566 Made USA 404-532-6401 April 1990 49 I Must know hobby business people 2 Must bea capable model builder andflyer 3 Must have Business Administration Degree equivalent practical experience 4 Must have compulsion manage business profitably have nota sit posterior tell people what job will expected bookkeeping cost accounting majority sales advertising public relations work will certainly need fluent typewriter computer keyboard will expected answer djfficult letters fire nice guy isnt getting job done see dont run afoul hundreds government rules regulations will expected responsiblefrr design production except effects cost sales Pay $4000000 range Smith will give better living $10000000 New York Chicago San Francisco Send resume Duke Fox 2400 Knoxville St Fort Smith AR 72901 Fox Manutactulng Co 5305 Towson Avenue 12~yWLJ Fort Smith AR 72901 Phone 501 6461656 PILOT GLASSES. HOW VALUABLE IS YOUR EYESIGHT Adjustable side frames...... free-flow ventilation Extremely light weight added comfort Blocks harmful ultraviolet radiation Attractive case included ________Wraparound frame fits comfortably over prescription glasses tz mist coated scratch resistance Made entirely Polycarbonate impact protection ANSI Z871 specifications Available in Clear shop work $1325 Amber overcast days & late afternoons S14~ Gray S14~ & Mirror S19~ sunny days CA Mask S15~ Paint Mask S2O~ member club hit prop blade thrown 60 engine close range tip blade struck Safety Plus glasses saved him serious injury possibly loss eye incident convinced everyone should wear safety glasses near model airplane engines being run upEd Saul Secretary Treasurer Pikes Peak RC Club EL Prices include shipping end handling FLU5 See hobby dealer first doesnt have what need order direct SAFETY PLUS PO Box 1173 Dept iM Clinton MS 39056 ORDERS ONLY 1-800-842-7233 Cant US Mississippi 601 924-9640 /MO RC Aerobatics/Van Putte Continued page 146 ate pressure would tend limit entries serious among us providing slight increase revenue needed case Raising number events flown quality would have effect promoting participation FAI local level program participants changes would pose very little hardship would take little effort administer mostly consti tute change paperwork system have workable scrap instead fine tun ing makes about much sense throwing family car away because needs gas second item K-Factor Paul Vergers column NSRCA District 3 VP Paul has airplane well-known design has problems wont mention name air plane because Pauls problems typical design may result modifications made us similar prob lems can certainly empathize what Paul wrote modified airplane flew like toad Well Mike Hayden Jim Fife spent day last Saturday trying detoad thing help new whiz-bang Futaba 1024 radios After mixes adjustments readjust ments rereadjustments finally got thing good could get Did succeed making toad prince Actually what got toad life support lot better some things $700 radio wont cure moral Sometimes should just give up move cant make pig sing annoys pig RC Giant Scale/de Vries Continued page 47 6 its stupefying compendium thing youd want know subject great photographer artist Dave goes well beyond techniques wire-cutting wing cores details foam fuselages floats scale cowls fiberglass spinners built simple-tomake foam forms host foam uses large Sailplanes devotes chapter repair damaged foam wings other model parts Its book well worth studying RC Slope Soaring/Triebes Continued page 49 Sweepback Leading edge less 100 Trailing edge less 50 optimum 00 trailing edge sweephack Jetlike sweepback does en hance looping maneuvers gives pitch sta bility much same dihedral does roll Dihedral Optimum 0-2 0 Jf opt 00 dihedral remember wings will look like droop flight Add 1-2-in block under wing tip joining wing halves wings will look right air course know dihedral amounts over 5 0 will give unacceptabletoo much stability roll want roll baby right Airfoil section cant go too far wrong Eppler 374 RG-15 airfoil new Se hg 5D6060 supposed hot kind en hanced Eppler 374 Before deciding thin out airfoil think about what kind flying site youll using site tight doesnt have much operating space below crest go 9-11 % section thickness thinned airfoils tend mush out lose speed pull tight high-G maneu vers other hand intend operate fast lady big hills big lift build 75% Eppler 374 keep maneuvers big smooth fast airfoil big sky environment Wing area vs wing loading An optimum wing area between 500 550 sq greater wing area greater overall weight must arrive target wing load ing about 15-17 oz per sq ft unballasted Speed directly proportional wing load ing forget about building light Instead build strong very clean avoiding unnecessary weight tail extra ounce 150 Model Aviation WANTED Hands Business Manager REQUIREMENTS IULTIMATESPORT RC 255 East Ashland/PO Baa 727/Sada Springs Ideha 83276 $1995 IDEO REVIEW THE CLOUD DANCERS INTERNATIONAL R/C SHOW TEAM MEET THE WORLD RENOWNED CLOUD DANCERS SEE THE EXCITING FOOTAGE OF THEIR F- 15 EAGLES GIANT SCALE WARBIRDS JUMPERS AND THE FAMOUS FLYING MACHINE MUST FOR YOUR VIDEO COLLECTION! 1 HOUR AND 30 MINUTES OF THE CLOUD DANCERS INACTION FINISHED PRODUCT !FL YING! VOL3 IN-DEPTH KIT AND PRODUCT REVIEWS BUILDING SEGMENTS AND EXCITING FLYING SCENES FEATURING SLIPERLUCKYFLY 2JOE PINKSTON ARF SPORT LOW WING AIRPLANE D & R AIRCRAFTS 115TH P47 INNOVATIVE MODELS MASTER SCALE HURRICANEPICAS NEW 15TH SCALE SPITFIREINNOVATIVE MODELS SAAB GRIPENFORMERLY MIKES MODELS SATELLITE CITYS UFO GLUEALSO ROBINAIRES CUSTOM RETRACT SYSTEM APPROXIMATELY 1 HOUR 45 MINUTES SAVE APPROXIMATELY $30006 WITH MANUFACTURERS DISCOUNT COUPONS INCLUDED IN VOLUME 3 [v32][b-1-10-1-10]] AVAILABLE ONLY FROM RC VIDEO REVIEW MAGAZINE 13360 KINGSBURY DR. WEST PALM BEACH FL 33414 790-3435 EACH TAPE $1995 PLUS $250 SHIPPING AND HANDLING CANADIAN ADD $600 FLORIDA ORDERS ADD 6% SALES TAX VISA AND MASTERCUARCE ALSO AVAILABLE ARE VOLUMES 1 AND 2 KING ORANGE AND JETS OVER DELAND NOW AVAILABLE TED AMOUNT OF YEARLY SUBSCRIPTIONS 5 FOR SIX VOLUMES PLUS S & H tail youll need four ounces nose bal ance Chord taper Avoid tip chords under four inches considering Reynolds Number related chord length Undesirable tip stall ag gravated narrow tip chord and/or high taper ratio Purely rectangular Hershey Bar wing planforms give best stall characteristics look awful slow down roll rate Form follows function wing design Tail area horizontal stabilizer has other function aside providing pitch control aircraft nonsymmetrical wing air foil stabs main purpose counter pitch-down tendency higher speeds Unless decide fully symmetrical wing section youll need stab area least 10% wing area just provide pitch stability high-speed Man turer Hi Perfornia IS aft CULPEPPER LS INC 2526 Washington DubuqueIA 52001 319/583-4130 flight stab area 12-15% desirable pro vide adequate pitch authority during low-speed flight takeoff landing Designing own Slope ship Part Two Slope fliers hear fairly regular basis Jef Raskin Jef member San Francisco Vultures active advocate Slope Aerobatics Vultures few clubs around actually hold Aerobatics contests can hope will change more people become involved flying Aerobatics Jef has written long article about optimal de sign acrobatic Sailplanes includes helpful ideas Sailplane design well set rules Slope Aerobatics contests interested building Sloper will truly . ngine 9015 2cyc Wing Area 1100 sq 1218 Acyc Machine Cut Wood Kit including wire landing gear & wing jaining hdwe VISA & MC accepted $120 Add 500 past & handling Add 300 far COD Ohia residents add 603 tax Far free Catalag send SASE Air Flair15138787487 PO Bax 2075 Fairborn Ohia 45324 acrobatic blast fly slope reading article definitely step right direc tion can write Jef Box 1638 Pacifica CA 94044 Swing-wings A number columns ago took short look concept variable-sweep wms put out request tried corporate feature Slope ship long after received letter photos resident F3B expert Northern California Rich Spicer familiar Richs reputation skills Sailplane de signer pilot trust best around Nova Slope Racer series Syn ergy F3B ships represent state art sport what has say about swingwingsContinued page 155 od timer perfectly proportioned modeling Cuartlss Robin 049 EngInes -Channel RIO 41 Wingspan Electric Power OploneI 82205 K: 003 Very few full scale aircrs5 ideally suited ta mudel tugs tse appealing old Curtius Rubin burn tfte spruce linen age beautifully propurtiafled rsbber electric glow engines Pass fun build treioerllke performauce Flyline ModelS Catalog 505 Psons 17031 2739593 INE MODELS INC PO Box 2136 FaIrfax VIrgInIa 22031 USA April 1990 151 $1995 SEE IT ON VIDEO FROM BOX TO $599 c Nut use Electric Starters Made 6061 Aluminum strong enough allow over tightening weighs under 1 oz 1 diameter 11/4 long 114 radius nose minimum AMA requirement 5/32 Torq Hole 3/4 thread depth can use thinnest props 11 thread sizes fit engines market Send us order & well mail out fast MADE IN THE USA B C PRODUCTS 111 N Starkweather Pampa Texas 79065 806 665-6361 D103210/32 EZOS8O5-8mm U 123212/32 L106106-1mm D07107-1mm L108108-1mm D81258-125mm LI 101210-125mm L114281/4-28 L351625/16-24 LI 38243/8-24 VISA MASTERCARD MONEY ORDERS ACCEPTED DEALER INQUIRES WELCOME Just read articte thought would pass some information about comments n swing-wing Sloper guess nothing really new Back around 1976 built successfully flew swing-wing test concept intent time evolve Unlimited Class Slope Racer Like lot other prototypes after developing far enough successful flight just didnt have time money incen tive whatever pursue next step devel opment tnstead t went back proven design continued Nova series model 42 long swept fully flying V-tail rudder-vator wing mounting sort shoulder mount wings full-forward configuration span about 50 in rear position about 36 main reason geometry change reduce frontal area rather change ra tio thickness chord top view wings fully retracted planform delta wing wing movement powered Futaba landing gear servo fully movable flight Flight stability during wing movement maintained two principles CG vari able wing movement ailerons de flected slightly negative wings rotated rear ward~ work Rich did Sailplane 14 years ago made great strides represents just first step evolution swing-wing Sloper todays high-strength lightweight materials high-tech radios birth ul timate swing-wing Sloper far away Rich undoubtedly busy work Synergy 4 SO will up rest us pursue concept further Swing-wings Part II Just thought Power Scale movement about maxed out some exceptional little Slope ships along comes Bob Reynolds incredible F-14B Super Tomcat Bob started Jet Hangar ducted-fan fuselage added slightly larger fly ing surfaces fuselage / scale fly ing surfaces What results ship 80 long spans 94 about 8 ft Projected weight 7/2 lb results ENYA15 SS2O SS45 19 80 120 FOX 19 45 60 120 HB ALL SIZES HP40 120 others IRVING ALL K&B 19 61 OS10 15 20 21 50 60 120 108 ROSSI ALL 8-1 SUPERTIGER 11 15 19 60 61to90 5-8mm 1/4-28 7-1mm 8-1mm 1/4-28 5/16-24 1/4-28 6-1mm 5/16-24 1/4-28 1/4-28 1/4-28 5-8mm 12/32 6-1mm 1/4-28 5/16-24 3/8-24 25mm 5-8mm 1/4-28 5/16-24 2000 6000 10-125mm SATIO 30 60 6-1mm 65 1090 7-1mm 120 270 8-125mm WEBRA 28 61 1/4-28 BOto90 8-125mm MALONEY 1003/8-24 wing loading 157 oz/sq ft gain lit tle advantage lift department Bob uses Eppler 214 root transitioning Eppler 222 tip youre thinking Bob might working little less full deck hold cause doesnt end Tomcat will have fully operational swing-wings just like real thing Anyone has seen real thing fly can imagine gorgeous Bobs F-14 will look sweeps back its wings during knife-edge pass across face slope Bob planning have beauty TnCities Scale Fun-Fly Just seeing ship fly will worth price admission Mini-I Kam-U Another small model companies has sprung up increase Slope Soarings popularity K&A Models owned operated Ken Williams ga rage shop companies make up core kit pro ducers Kens kits great examples high-quality products being turned out two kits Ken producing now Mini-I Kam-U Mini-I has 285-in wingspan area 1674 sq flying weight 95 10 oz kit includes machine-cut plywood balsa parts foam core wings plans instructions complete hardware package Mini-I re quires mini two-channel radio system de signed advanced flier Despite its small size light weight Mini-I needs quite bit wind fly Ken noted plane designed advanced flier definitely true Its small size quickness require pilot steady thumbs good eyes experienced Sloper yearning quick acrobatic ship small slopes Mini-I might just what look ing Kam-U designed intermedi ate flier mind wingspan makes very stable plane yet Kam-U incapable perform ing Aerobatics well specifications 50-in wingspan area 2875 sq flying weight 195 20 ounces kit Mini-t very complete good quality Kam-U designed use standard two-channel radio Continued page 156 THIRTY-SIXTH ANNUAL RADIO CONTROL EXPOSITION APRIL 6 7 8 1990 FRIDAY9amto6pm SATURDAY9amto6pm SUNDAY9 am 430 pm TOLEDO SPORTS ARENA ONE MAIN STREET TOLEDO OHIO TICKETS can purchased door ADVANCE sending self-addressed stamped business size 41/aX9 envelope TICKETS 38235 Castle Romulus Ml 48174 orders above 10 tickets must include double postage US orders must include 25 cents per order handling charge foreign orders must include 50 cents per order handling charge need send addressed envelope will provide necessary postage NOTE Registered Express Type Mail Orders Will Accepted! Include check money order US funds made payable Weak Signals R/C Club Ticket prices $400 per day adults $100 per day children 12 under Please specify number Deadline ticket orders March 30 1990 sales final non-refundable Hotel info map area may obtained sending stamped self-addressed envelope ticket address above Any other Exposition information avail able contacting Wayne Yeager co director ticket address phone 313941-6661 We WillHave TraditionalSwap Shop Saturday Night Auction COMPETITION CLASSES NON-MILITARY SPORT SCALE PLANE AMA RulesI MILITARY SPORT SCALE PLANE IAMA Rules PRECISION SCALE PLANE IAMA RulesI PATTERN PLANE f No Jetaf SPORT MONO-PLANE fnon-scale models SPORT BI-PLANE non-scale models OLD TIMER FREE FLIGHT R/C ASSIST R/C SAILPLANE non-scale models f No Engines HELICOPTER R/C CAR COMPETITION BOAT MILITARY SCALE BOAT PLEASURE POWER BOAT WORKING VESSEL-UNARMED presented Weak Signals R/C Club Toledo Ohio uuW April 1990 155 acranarit A- aaynawx MINI-JET SERIES pl3nes feature balsa construction Designed intermediate flyer mind will accept 25 32 size engine use rear exbaust engine exceptional perfomance Get thrill jet hassles ducted fan New Airfoil Version Fixed Gear Retractablcs New Midi jet 40 45 size Airfoil ror Rctractablea New Mini-Mini Jet 049 10 size Airfoil Retracts Mini Mini Jets Mini Jets ktidi-JetE stoee 0 W8i Canopy $1500$6000Re#act $5000 Sid $2000 Wi Canopy $2000d4 $2600 Wifi Catopy Pitie shipped Post paid xnait tuta Pleuc add $4tXl shipping tundling Parrish Aircrait & Scale Models 52S SW 49th Tet Phntation Fl 33317305 581 4477 Both kits went together quickiy easily should pose no problems intermediate builder would like try out planes yourself check local hobby shop contact Ken directly K&A Models Unlim ited 5990 California Ave Long Beach CA 90805 Dont forget about International Soaring RC Scale Fun Fly Tn-Cities WA coming up May 25-27 still plenty time register annual event can get alt info Wil Byers 632 Meadows Drive East Richland WA 99352 phone 1-509/627-5224 RC Electrics/Kopski Continued page 51 Romey Bukolt man behind Concept Mod els about year ago called discuss plans develop Fleet Electric Romey spe cializes Fleets Concept Models has prod uct line wet-powered ones various sizes chatted also referred him Keith Shaw very same bearded gentleman mentioned above Electric Practitioner Su preme Ann Arbor MI seeI said wasnt Santa Some months went got set plans Romey look over mark up did Keith did too few weeks ago got photo shown herein Concept Models pro totype 40 -powered Fleet can tell kit works dont have price availability info time can get particulars Concept 2906 Grandview Blvd Madison WI 53713 Electric Scale getting very popular kit will add considerably trend brings around Astro time recent conversation Bob Boucher told hes repackaging ever-popular Astro Por terfield attractive new box also hes including gear-drive 25 giant step sense now used seeing 05s packaged ever-expanding number Electrics 25 represents whole new level trend Personally think move going very successful Porterfield has con tinuous production ever since about 1978/79 very successful model air Since has get suitable power system fly way get plane-withmotor idea popularized Goldberg Elec tra several years ago has proven very successful marketing idea witness numbers kits-with-motors now market see no reason new Porserfield wont en joy success kind Some errors crept some offerings January issue MA Id like offer some corrections First off Skyvolt article centermost photo page 32 illustrates landing gear tachment caption mentions fiberglass matting text page 143 mentions iron-on cloth reinforcement latter correct have no idea former came theres trace fiberglass either Skyvolt shop Santa Naa Editing Elves Maybe As aside guess should explain some spirit Column coming fromIm writing December 25 1989 Let expand last comtttents bit have using iron-on cloth reinforcement modeling over two decades find GUIDE TO OVER 400 AIRCRAFT MUSEUMS CROSS REFERENCE BY AIRCRAFT SEND $700 postage included TO MICHAEL SLAUGHER See MA 6-89 P110 124 E Foster Parkway Fort Wayne IN 46806-1730 1-219-744-1020 Southwest RC Flying Year round flight school Five day course $350 Learn fLy planes Send SASE complete info to 2818 Carolina NE Albuquerque NM 87110 505 881-3799 extremely easy use very effective Wont work well fiberglass eases com pound curved areas does great job places use white Bondex brand manufactured Wrights Stock #230 002 costs about $1 6/2 x 14-in piece Bondex readily avail able sewing variety stores intended clothing patch material Isis basically cloth material heat-activated adhesive side flows about Wool setting typical household clothes iron use simply cut material outline size put place want cover pa per towel bring hot iron bear towel following time instructions supplied product paper used prevent adhesive soaks its side cloth way through goo-ing up iron glue sticks like crazy balsa ply cloth cools youve got tough sembly Anyway always install such cloth reinforcements first part covering job cant speak materials, find MonoKote goes over cloth nicely case Skyvolt used piece ma terial measuring about 3 x 4/ wrapped around ply landing gear mounting plate extends up sides fuselage about % As installation aid first adhered ply plate two flaps intended go up sides held out heats way fu selage sides masking tape latter re moved course before heat applied side pieces way used hold wet-powered firewalls place same waybut Ive grown out stage now second instance glitches KRC meet article erroneously referred Bill Winters Le Crate design Heron made its appearance meet earlier years Two other minor errors also found wy article opening paragraph page 87 gives participation 110 118a bit larger last years 113 despite rain am making fine point Because size get sing very important As discussed arti cle meet growth field size closing other KRC presently considering alter natives accommodate situation statement page 188 came out plane designed meet QSPRA Formula 120 rules 1/4 scale model accepts 60120 ci engines Features Epoxy glass fuselage foam wing contnsction Dural landing gear scale landing gear dd $1500 lufl kit S175O0 ad han IMPORTED DIESELS A-MAurorabcEDMyygJi.Ah PAWfaplln 8tandrd & R/C.OIg4g Aero Marine VIntag.Sporg & Conteat Send ioo informatlom ICARLSON ENGINE IMPORTS IPhoenI AZ
Edition: Model Aviation - 1990/04
Page Numbers: 48, 49, 150, 151, 155, 156
DESIGNING Slope ship Without doubt recent proliferation Slope Soarer kits has made much easier find plane fits needs still might difficult find ship ideal Maybe want ship will rip tear small slope doing high-G gutwrenching maneuvers maybe want will use up lotsa airspace huge fast smooth maneuvers Whatever ideal Slope site plane might way get ex actly what looking design plane yourself Im going try kid saying designing Slope ship easy because its lot time effort go designing refining Sailplane anyone says differ ently either giving line simply has never tried doesnt know better Occa sionally will come across plane flies great right off hoard few far between Most designs take months years research design construction testing redesign testing come up desired re suIts Dont get wrong idea though Al though time-consuming stuff im measurably fun incredibly rewarding plane reaches its final form have ever urge design work just werent sure start maybe following piece will give inspiration little push right direction article entitled Looking Miss Go-Fast writ ten Pete Marshall Slope Soaring News gives some basic parameters Slope ship de Left Bob Reynolds what may ultimate Slope Scale ship F-14B Super Tomcat spans almost 8 ft weighs about 75 lb and3 represents total Slope madness Right Bob started out glass fuselage ducted-fan kit added own slightly modified flying surfaces created Slope Soaring dream beast will fly International Soaring RC Scale Fun Fly Tn-Cities WA Morey photo Left wings full sweep position ship spans 36 inches compared 60-in span wings full forward Using pow erful landing gear servo wings fully movable flight CG Rich Spicer photo Right Rich Spicer designed built wing Sloper 14 years ago Rich presents some interesting ideas plane concept swing wings column Rich Spicer pooso 48 Model Aviation Radio Control Slope Soaring Mark Triebes 20794 Kreisler Ct Saratoga CA 95070 Kam-U comes same stable Mini-I its much docile simple build easy fly Kam-U good aileron trainer just fun flier Ken Williams photo Mini-I spans just 285 weighs less 10 oz dont let fool Mini-I all-out Sloper good eyes steady thumbs Photo Williams signs Could ad Slope Soaring News personals column Hi Gorgeous Im good-looking aggres sive new pilot yen exotic Ive sembled three four kits can build pretty well now fly inverted make right moves time get bored flying rudder ships Im seriously ailerons Aerobatics want go faster aileron trainer just wont sleek beautiful aerobatic very very fast also sensi tive have no vices except speed love moonlit walks windswept ridges fresh ocean gales under wings thrive getting loaded lead kind kit live imagination can meet fall love sounds like Pete might little bit loaded himself maybe just kinda confused us Slope Soarers have never kind always fly straight level MT sounds like kind girl youd like meet read Ill introduce you can go far want world speed Aerobatics Well put together Aerobatic Sloper capa ble speeds over 100 mph 300-ft-dia loops four five axial rolls going straight up article about design parameters proportions will help select basic skele ton own Miss Go-Fast shape alive imagination job will flesh out framework have decided upon Learn before turn say can t draw cant build grab some pencils erasers rulers french curves lots drawing paper Start sketching until looks right first read stuff Fuselage basic function fuselage hold wing tail apart proper inci dence angle other fuselage also comes handy stuff full radio gear lots lead Its shape isnt particularly important So original shape pleases just wont come out imagination dont give up Miss Go-Fast could DeHavilland Dash 8 Reno P-5 Iwhatever turns Just stay within design parameters Wingspan Range 60-80 optimum 70-78 want go real fast youve gotta get really high So want get up high still able see plane need some real wingspan Plus other things being equal big wings fly better little wings Aspect ratio formula calculating aspect ratio wingspan squared divided wing area Range 81 111 optimum 101 111 aspect ratio below 61 performance soarability drops noticeably high wing load ings airplane wont climb Out very well nor will climb very high Continued page iSO HANDSOFFCUTII Especially Designed Tapered Wings unique device cutting sigh quality foam wing coree HANDS OFF cuffing both sides same time Available hardware package assemble own board-Specify 30 -40 -50 or 60 ordering size may changed anytime Man Chord tandard Larqer chords available Easy assemble Requires 24 volt Variable Output Power Supply DEALERS WANTED Hunds Off Cut II hardware pactraQe $8750 S & H 24 Volt Variable Output power supply552-50 S & H VIDEO FOAM SHOP Foam Shop Part OneCutting Foam Wings sour long cuts made using HANDS OFF CUT II V H5Only $2995 includes 5 & H lower 48 Foam Shop Part TwoCutting Foam Fuselages sour long cuts made using simple bow VHSOnly $2995 includes 5 5 H lowe 48 SUPER BOND CONTACT ADHESIVE T5e best contact cement have ever used Only $375 6 oz squeeze bottle Enough br 4 1400 square inch wingAdd $200 S & H lower 48 118 inch Phenolic 4 5 36 Board Templates Only $500 S & H NOR-RAY PRODUCTS 5008 Sandbeach Road ISAWichita Falls Texas 78311 Tel f817 6824476 Ruff Stuff $115 per sheet CLAYLaNOSCAPES Stay Tray $210 Mini Glue lipsAdd 20% iftcIoder I- \I1iIi~ 4 $105 Tee Good Stuff Bar AIi~AppIied Design Corporation $300 CA 90610 Mipi RnndqrMini Saw $850 $275 / u u HOLES IN THE SKYE LANIER RCu REBEL CAT NO 78129 A GREAT FLYING BIPE THAT IS CAPABLE OF ANY MANEUVER YOUVE GOT THE GUTS TO DOI Fuselage Length 35Wing Span 50 Rec Engine Size 45-60 4 Stroke 60-80Area 700 sq Flying Weight 6-7 lbsRadio Channels 4 Available favorite hobby dealerReplacement parts available Dealer distributor inquiries Invited Write today free color catalog PO Box 458 Oakwood Georgia 30566 Made USA 404-532-6401 April 1990 49 I Must know hobby business people 2 Must bea capable model builder andflyer 3 Must have Business Administration Degree equivalent practical experience 4 Must have compulsion manage business profitably have nota sit posterior tell people what job will expected bookkeeping cost accounting majority sales advertising public relations work will certainly need fluent typewriter computer keyboard will expected answer djfficult letters fire nice guy isnt getting job done see dont run afoul hundreds government rules regulations will expected responsiblefrr design production except effects cost sales Pay $4000000 range Smith will give better living $10000000 New York Chicago San Francisco Send resume Duke Fox 2400 Knoxville St Fort Smith AR 72901 Fox Manutactulng Co 5305 Towson Avenue 12~yWLJ Fort Smith AR 72901 Phone 501 6461656 PILOT GLASSES. HOW VALUABLE IS YOUR EYESIGHT Adjustable side frames...... free-flow ventilation Extremely light weight added comfort Blocks harmful ultraviolet radiation Attractive case included ________Wraparound frame fits comfortably over prescription glasses tz mist coated scratch resistance Made entirely Polycarbonate impact protection ANSI Z871 specifications Available in Clear shop work $1325 Amber overcast days & late afternoons S14~ Gray S14~ & Mirror S19~ sunny days CA Mask S15~ Paint Mask S2O~ member club hit prop blade thrown 60 engine close range tip blade struck Safety Plus glasses saved him serious injury possibly loss eye incident convinced everyone should wear safety glasses near model airplane engines being run upEd Saul Secretary Treasurer Pikes Peak RC Club EL Prices include shipping end handling FLU5 See hobby dealer first doesnt have what need order direct SAFETY PLUS PO Box 1173 Dept iM Clinton MS 39056 ORDERS ONLY 1-800-842-7233 Cant US Mississippi 601 924-9640 /MO RC Aerobatics/Van Putte Continued page 146 ate pressure would tend limit entries serious among us providing slight increase revenue needed case Raising number events flown quality would have effect promoting participation FAI local level program participants changes would pose very little hardship would take little effort administer mostly consti tute change paperwork system have workable scrap instead fine tun ing makes about much sense throwing family car away because needs gas second item K-Factor Paul Vergers column NSRCA District 3 VP Paul has airplane well-known design has problems wont mention name air plane because Pauls problems typical design may result modifications made us similar prob lems can certainly empathize what Paul wrote modified airplane flew like toad Well Mike Hayden Jim Fife spent day last Saturday trying detoad thing help new whiz-bang Futaba 1024 radios After mixes adjustments readjust ments rereadjustments finally got thing good could get Did succeed making toad prince Actually what got toad life support lot better some things $700 radio wont cure moral Sometimes should just give up move cant make pig sing annoys pig RC Giant Scale/de Vries Continued page 47 6 its stupefying compendium thing youd want know subject great photographer artist Dave goes well beyond techniques wire-cutting wing cores details foam fuselages floats scale cowls fiberglass spinners built simple-tomake foam forms host foam uses large Sailplanes devotes chapter repair damaged foam wings other model parts Its book well worth studying RC Slope Soaring/Triebes Continued page 49 Sweepback Leading edge less 100 Trailing edge less 50 optimum 00 trailing edge sweephack Jetlike sweepback does en hance looping maneuvers gives pitch sta bility much same dihedral does roll Dihedral Optimum 0-2 0 Jf opt 00 dihedral remember wings will look like droop flight Add 1-2-in block under wing tip joining wing halves wings will look right air course know dihedral amounts over 5 0 will give unacceptabletoo much stability roll want roll baby right Airfoil section cant go too far wrong Eppler 374 RG-15 airfoil new Se hg 5D6060 supposed hot kind en hanced Eppler 374 Before deciding thin out airfoil think about what kind flying site youll using site tight doesnt have much operating space below crest go 9-11 % section thickness thinned airfoils tend mush out lose speed pull tight high-G maneu vers other hand intend operate fast lady big hills big lift build 75% Eppler 374 keep maneuvers big smooth fast airfoil big sky environment Wing area vs wing loading An optimum wing area between 500 550 sq greater wing area greater overall weight must arrive target wing load ing about 15-17 oz per sq ft unballasted Speed directly proportional wing load ing forget about building light Instead build strong very clean avoiding unnecessary weight tail extra ounce 150 Model Aviation WANTED Hands Business Manager REQUIREMENTS IULTIMATESPORT RC 255 East Ashland/PO Baa 727/Sada Springs Ideha 83276 $1995 IDEO REVIEW THE CLOUD DANCERS INTERNATIONAL R/C SHOW TEAM MEET THE WORLD RENOWNED CLOUD DANCERS SEE THE EXCITING FOOTAGE OF THEIR F- 15 EAGLES GIANT SCALE WARBIRDS JUMPERS AND THE FAMOUS FLYING MACHINE MUST FOR YOUR VIDEO COLLECTION! 1 HOUR AND 30 MINUTES OF THE CLOUD DANCERS INACTION FINISHED PRODUCT !FL YING! VOL3 IN-DEPTH KIT AND PRODUCT REVIEWS BUILDING SEGMENTS AND EXCITING FLYING SCENES FEATURING SLIPERLUCKYFLY 2JOE PINKSTON ARF SPORT LOW WING AIRPLANE D & R AIRCRAFTS 115TH P47 INNOVATIVE MODELS MASTER SCALE HURRICANEPICAS NEW 15TH SCALE SPITFIREINNOVATIVE MODELS SAAB GRIPENFORMERLY MIKES MODELS SATELLITE CITYS UFO GLUEALSO ROBINAIRES CUSTOM RETRACT SYSTEM APPROXIMATELY 1 HOUR 45 MINUTES SAVE APPROXIMATELY $30006 WITH MANUFACTURERS DISCOUNT COUPONS INCLUDED IN VOLUME 3 [v32][b-1-10-1-10]] AVAILABLE ONLY FROM RC VIDEO REVIEW MAGAZINE 13360 KINGSBURY DR. WEST PALM BEACH FL 33414 790-3435 EACH TAPE $1995 PLUS $250 SHIPPING AND HANDLING CANADIAN ADD $600 FLORIDA ORDERS ADD 6% SALES TAX VISA AND MASTERCUARCE ALSO AVAILABLE ARE VOLUMES 1 AND 2 KING ORANGE AND JETS OVER DELAND NOW AVAILABLE TED AMOUNT OF YEARLY SUBSCRIPTIONS 5 FOR SIX VOLUMES PLUS S & H tail youll need four ounces nose bal ance Chord taper Avoid tip chords under four inches considering Reynolds Number related chord length Undesirable tip stall ag gravated narrow tip chord and/or high taper ratio Purely rectangular Hershey Bar wing planforms give best stall characteristics look awful slow down roll rate Form follows function wing design Tail area horizontal stabilizer has other function aside providing pitch control aircraft nonsymmetrical wing air foil stabs main purpose counter pitch-down tendency higher speeds Unless decide fully symmetrical wing section youll need stab area least 10% wing area just provide pitch stability high-speed Man turer Hi Perfornia IS aft CULPEPPER LS INC 2526 Washington DubuqueIA 52001 319/583-4130 flight stab area 12-15% desirable pro vide adequate pitch authority during low-speed flight takeoff landing Designing own Slope ship Part Two Slope fliers hear fairly regular basis Jef Raskin Jef member San Francisco Vultures active advocate Slope Aerobatics Vultures few clubs around actually hold Aerobatics contests can hope will change more people become involved flying Aerobatics Jef has written long article about optimal de sign acrobatic Sailplanes includes helpful ideas Sailplane design well set rules Slope Aerobatics contests interested building Sloper will truly . ngine 9015 2cyc Wing Area 1100 sq 1218 Acyc Machine Cut Wood Kit including wire landing gear & wing jaining hdwe VISA & MC accepted $120 Add 500 past & handling Add 300 far COD Ohia residents add 603 tax Far free Catalag send SASE Air Flair15138787487 PO Bax 2075 Fairborn Ohia 45324 acrobatic blast fly slope reading article definitely step right direc tion can write Jef Box 1638 Pacifica CA 94044 Swing-wings A number columns ago took short look concept variable-sweep wms put out request tried corporate feature Slope ship long after received letter photos resident F3B expert Northern California Rich Spicer familiar Richs reputation skills Sailplane de signer pilot trust best around Nova Slope Racer series Syn ergy F3B ships represent state art sport what has say about swingwingsContinued page 155 od timer perfectly proportioned modeling Cuartlss Robin 049 EngInes -Channel RIO 41 Wingspan Electric Power OploneI 82205 K: 003 Very few full scale aircrs5 ideally suited ta mudel tugs tse appealing old Curtius Rubin burn tfte spruce linen age beautifully propurtiafled rsbber electric glow engines Pass fun build treioerllke performauce Flyline ModelS Catalog 505 Psons 17031 2739593 INE MODELS INC PO Box 2136 FaIrfax VIrgInIa 22031 USA April 1990 151 $1995 SEE IT ON VIDEO FROM BOX TO $599 c Nut use Electric Starters Made 6061 Aluminum strong enough allow over tightening weighs under 1 oz 1 diameter 11/4 long 114 radius nose minimum AMA requirement 5/32 Torq Hole 3/4 thread depth can use thinnest props 11 thread sizes fit engines market Send us order & well mail out fast MADE IN THE USA B C PRODUCTS 111 N Starkweather Pampa Texas 79065 806 665-6361 D103210/32 EZOS8O5-8mm U 123212/32 L106106-1mm D07107-1mm L108108-1mm D81258-125mm LI 101210-125mm L114281/4-28 L351625/16-24 LI 38243/8-24 VISA MASTERCARD MONEY ORDERS ACCEPTED DEALER INQUIRES WELCOME Just read articte thought would pass some information about comments n swing-wing Sloper guess nothing really new Back around 1976 built successfully flew swing-wing test concept intent time evolve Unlimited Class Slope Racer Like lot other prototypes after developing far enough successful flight just didnt have time money incen tive whatever pursue next step devel opment tnstead t went back proven design continued Nova series model 42 long swept fully flying V-tail rudder-vator wing mounting sort shoulder mount wings full-forward configuration span about 50 in rear position about 36 main reason geometry change reduce frontal area rather change ra tio thickness chord top view wings fully retracted planform delta wing wing movement powered Futaba landing gear servo fully movable flight Flight stability during wing movement maintained two principles CG vari able wing movement ailerons de flected slightly negative wings rotated rear ward~ work Rich did Sailplane 14 years ago made great strides represents just first step evolution swing-wing Sloper todays high-strength lightweight materials high-tech radios birth ul timate swing-wing Sloper far away Rich undoubtedly busy work Synergy 4 SO will up rest us pursue concept further Swing-wings Part II Just thought Power Scale movement about maxed out some exceptional little Slope ships along comes Bob Reynolds incredible F-14B Super Tomcat Bob started Jet Hangar ducted-fan fuselage added slightly larger fly ing surfaces fuselage / scale fly ing surfaces What results ship 80 long spans 94 about 8 ft Projected weight 7/2 lb results ENYA15 SS2O SS45 19 80 120 FOX 19 45 60 120 HB ALL SIZES HP40 120 others IRVING ALL K&B 19 61 OS10 15 20 21 50 60 120 108 ROSSI ALL 8-1 SUPERTIGER 11 15 19 60 61to90 5-8mm 1/4-28 7-1mm 8-1mm 1/4-28 5/16-24 1/4-28 6-1mm 5/16-24 1/4-28 1/4-28 1/4-28 5-8mm 12/32 6-1mm 1/4-28 5/16-24 3/8-24 25mm 5-8mm 1/4-28 5/16-24 2000 6000 10-125mm SATIO 30 60 6-1mm 65 1090 7-1mm 120 270 8-125mm WEBRA 28 61 1/4-28 BOto90 8-125mm MALONEY 1003/8-24 wing loading 157 oz/sq ft gain lit tle advantage lift department Bob uses Eppler 214 root transitioning Eppler 222 tip youre thinking Bob might working little less full deck hold cause doesnt end Tomcat will have fully operational swing-wings just like real thing Anyone has seen real thing fly can imagine gorgeous Bobs F-14 will look sweeps back its wings during knife-edge pass across face slope Bob planning have beauty TnCities Scale Fun-Fly Just seeing ship fly will worth price admission Mini-I Kam-U Another small model companies has sprung up increase Slope Soarings popularity K&A Models owned operated Ken Williams ga rage shop companies make up core kit pro ducers Kens kits great examples high-quality products being turned out two kits Ken producing now Mini-I Kam-U Mini-I has 285-in wingspan area 1674 sq flying weight 95 10 oz kit includes machine-cut plywood balsa parts foam core wings plans instructions complete hardware package Mini-I re quires mini two-channel radio system de signed advanced flier Despite its small size light weight Mini-I needs quite bit wind fly Ken noted plane designed advanced flier definitely true Its small size quickness require pilot steady thumbs good eyes experienced Sloper yearning quick acrobatic ship small slopes Mini-I might just what look ing Kam-U designed intermedi ate flier mind wingspan makes very stable plane yet Kam-U incapable perform ing Aerobatics well specifications 50-in wingspan area 2875 sq flying weight 195 20 ounces kit Mini-t very complete good quality Kam-U designed use standard two-channel radio Continued page 156 THIRTY-SIXTH ANNUAL RADIO CONTROL EXPOSITION APRIL 6 7 8 1990 FRIDAY9amto6pm SATURDAY9amto6pm SUNDAY9 am 430 pm TOLEDO SPORTS ARENA ONE MAIN STREET TOLEDO OHIO TICKETS can purchased door ADVANCE sending self-addressed stamped business size 41/aX9 envelope TICKETS 38235 Castle Romulus Ml 48174 orders above 10 tickets must include double postage US orders must include 25 cents per order handling charge foreign orders must include 50 cents per order handling charge need send addressed envelope will provide necessary postage NOTE Registered Express Type Mail Orders Will Accepted! Include check money order US funds made payable Weak Signals R/C Club Ticket prices $400 per day adults $100 per day children 12 under Please specify number Deadline ticket orders March 30 1990 sales final non-refundable Hotel info map area may obtained sending stamped self-addressed envelope ticket address above Any other Exposition information avail able contacting Wayne Yeager co director ticket address phone 313941-6661 We WillHave TraditionalSwap Shop Saturday Night Auction COMPETITION CLASSES NON-MILITARY SPORT SCALE PLANE AMA RulesI MILITARY SPORT SCALE PLANE IAMA Rules PRECISION SCALE PLANE IAMA RulesI PATTERN PLANE f No Jetaf SPORT MONO-PLANE fnon-scale models SPORT BI-PLANE non-scale models OLD TIMER FREE FLIGHT R/C ASSIST R/C SAILPLANE non-scale models f No Engines HELICOPTER R/C CAR COMPETITION BOAT MILITARY SCALE BOAT PLEASURE POWER BOAT WORKING VESSEL-UNARMED presented Weak Signals R/C Club Toledo Ohio uuW April 1990 155 acranarit A- aaynawx MINI-JET SERIES pl3nes feature balsa construction Designed intermediate flyer mind will accept 25 32 size engine use rear exbaust engine exceptional perfomance Get thrill jet hassles ducted fan New Airfoil Version Fixed Gear Retractablcs New Midi jet 40 45 size Airfoil ror Rctractablea New Mini-Mini Jet 049 10 size Airfoil Retracts Mini Mini Jets Mini Jets ktidi-JetE stoee 0 W8i Canopy $1500$6000Re#act $5000 Sid $2000 Wi Canopy $2000d4 $2600 Wifi Catopy Pitie shipped Post paid xnait tuta Pleuc add $4tXl shipping tundling Parrish Aircrait & Scale Models 52S SW 49th Tet Phntation Fl 33317305 581 4477 Both kits went together quickiy easily should pose no problems intermediate builder would like try out planes yourself check local hobby shop contact Ken directly K&A Models Unlim ited 5990 California Ave Long Beach CA 90805 Dont forget about International Soaring RC Scale Fun Fly Tn-Cities WA coming up May 25-27 still plenty time register annual event can get alt info Wil Byers 632 Meadows Drive East Richland WA 99352 phone 1-509/627-5224 RC Electrics/Kopski Continued page 51 Romey Bukolt man behind Concept Mod els about year ago called discuss plans develop Fleet Electric Romey spe cializes Fleets Concept Models has prod uct line wet-powered ones various sizes chatted also referred him Keith Shaw very same bearded gentleman mentioned above Electric Practitioner Su preme Ann Arbor MI seeI said wasnt Santa Some months went got set plans Romey look over mark up did Keith did too few weeks ago got photo shown herein Concept Models pro totype 40 -powered Fleet can tell kit works dont have price availability info time can get particulars Concept 2906 Grandview Blvd Madison WI 53713 Electric Scale getting very popular kit will add considerably trend brings around Astro time recent conversation Bob Boucher told hes repackaging ever-popular Astro Por terfield attractive new box also hes including gear-drive 25 giant step sense now used seeing 05s packaged ever-expanding number Electrics 25 represents whole new level trend Personally think move going very successful Porterfield has con tinuous production ever since about 1978/79 very successful model air Since has get suitable power system fly way get plane-withmotor idea popularized Goldberg Elec tra several years ago has proven very successful marketing idea witness numbers kits-with-motors now market see no reason new Porserfield wont en joy success kind Some errors crept some offerings January issue MA Id like offer some corrections First off Skyvolt article centermost photo page 32 illustrates landing gear tachment caption mentions fiberglass matting text page 143 mentions iron-on cloth reinforcement latter correct have no idea former came theres trace fiberglass either Skyvolt shop Santa Naa Editing Elves Maybe As aside guess should explain some spirit Column coming fromIm writing December 25 1989 Let expand last comtttents bit have using iron-on cloth reinforcement modeling over two decades find GUIDE TO OVER 400 AIRCRAFT MUSEUMS CROSS REFERENCE BY AIRCRAFT SEND $700 postage included TO MICHAEL SLAUGHER See MA 6-89 P110 124 E Foster Parkway Fort Wayne IN 46806-1730 1-219-744-1020 Southwest RC Flying Year round flight school Five day course $350 Learn fLy planes Send SASE complete info to 2818 Carolina NE Albuquerque NM 87110 505 881-3799 extremely easy use very effective Wont work well fiberglass eases com pound curved areas does great job places use white Bondex brand manufactured Wrights Stock #230 002 costs about $1 6/2 x 14-in piece Bondex readily avail able sewing variety stores intended clothing patch material Isis basically cloth material heat-activated adhesive side flows about Wool setting typical household clothes iron use simply cut material outline size put place want cover pa per towel bring hot iron bear towel following time instructions supplied product paper used prevent adhesive soaks its side cloth way through goo-ing up iron glue sticks like crazy balsa ply cloth cools youve got tough sembly Anyway always install such cloth reinforcements first part covering job cant speak materials, find MonoKote goes over cloth nicely case Skyvolt used piece ma terial measuring about 3 x 4/ wrapped around ply landing gear mounting plate extends up sides fuselage about % As installation aid first adhered ply plate two flaps intended go up sides held out heats way fu selage sides masking tape latter re moved course before heat applied side pieces way used hold wet-powered firewalls place same waybut Ive grown out stage now second instance glitches KRC meet article erroneously referred Bill Winters Le Crate design Heron made its appearance meet earlier years Two other minor errors also found wy article opening paragraph page 87 gives participation 110 118a bit larger last years 113 despite rain am making fine point Because size get sing very important As discussed arti cle meet growth field size closing other KRC presently considering alter natives accommodate situation statement page 188 came out plane designed meet QSPRA Formula 120 rules 1/4 scale model accepts 60120 ci engines Features Epoxy glass fuselage foam wing contnsction Dural landing gear scale landing gear dd $1500 lufl kit S175O0 ad han IMPORTED DIESELS A-MAurorabcEDMyygJi.Ah PAWfaplln 8tandrd & R/C.OIg4g Aero Marine VIntag.Sporg & Conteat Send ioo informatlom ICARLSON ENGINE IMPORTS IPhoenI AZ
Edition: Model Aviation - 1990/04
Page Numbers: 48, 49, 150, 151, 155, 156
DESIGNING Slope ship Without doubt recent proliferation Slope Soarer kits has made much easier find plane fits needs still might difficult find ship ideal Maybe want ship will rip tear small slope doing high-G gutwrenching maneuvers maybe want will use up lotsa airspace huge fast smooth maneuvers Whatever ideal Slope site plane might way get ex actly what looking design plane yourself Im going try kid saying designing Slope ship easy because its lot time effort go designing refining Sailplane anyone says differ ently either giving line simply has never tried doesnt know better Occa sionally will come across plane flies great right off hoard few far between Most designs take months years research design construction testing redesign testing come up desired re suIts Dont get wrong idea though Al though time-consuming stuff im measurably fun incredibly rewarding plane reaches its final form have ever urge design work just werent sure start maybe following piece will give inspiration little push right direction article entitled Looking Miss Go-Fast writ ten Pete Marshall Slope Soaring News gives some basic parameters Slope ship de Left Bob Reynolds what may ultimate Slope Scale ship F-14B Super Tomcat spans almost 8 ft weighs about 75 lb and3 represents total Slope madness Right Bob started out glass fuselage ducted-fan kit added own slightly modified flying surfaces created Slope Soaring dream beast will fly International Soaring RC Scale Fun Fly Tn-Cities WA Morey photo Left wings full sweep position ship spans 36 inches compared 60-in span wings full forward Using pow erful landing gear servo wings fully movable flight CG Rich Spicer photo Right Rich Spicer designed built wing Sloper 14 years ago Rich presents some interesting ideas plane concept swing wings column Rich Spicer pooso 48 Model Aviation Radio Control Slope Soaring Mark Triebes 20794 Kreisler Ct Saratoga CA 95070 Kam-U comes same stable Mini-I its much docile simple build easy fly Kam-U good aileron trainer just fun flier Ken Williams photo Mini-I spans just 285 weighs less 10 oz dont let fool Mini-I all-out Sloper good eyes steady thumbs Photo Williams signs Could ad Slope Soaring News personals column Hi Gorgeous Im good-looking aggres sive new pilot yen exotic Ive sembled three four kits can build pretty well now fly inverted make right moves time get bored flying rudder ships Im seriously ailerons Aerobatics want go faster aileron trainer just wont sleek beautiful aerobatic very very fast also sensi tive have no vices except speed love moonlit walks windswept ridges fresh ocean gales under wings thrive getting loaded lead kind kit live imagination can meet fall love sounds like Pete might little bit loaded himself maybe just kinda confused us Slope Soarers have never kind always fly straight level MT sounds like kind girl youd like meet read Ill introduce you can go far want world speed Aerobatics Well put together Aerobatic Sloper capa ble speeds over 100 mph 300-ft-dia loops four five axial rolls going straight up article about design parameters proportions will help select basic skele ton own Miss Go-Fast shape alive imagination job will flesh out framework have decided upon Learn before turn say can t draw cant build grab some pencils erasers rulers french curves lots drawing paper Start sketching until looks right first read stuff Fuselage basic function fuselage hold wing tail apart proper inci dence angle other fuselage also comes handy stuff full radio gear lots lead Its shape isnt particularly important So original shape pleases just wont come out imagination dont give up Miss Go-Fast could DeHavilland Dash 8 Reno P-5 Iwhatever turns Just stay within design parameters Wingspan Range 60-80 optimum 70-78 want go real fast youve gotta get really high So want get up high still able see plane need some real wingspan Plus other things being equal big wings fly better little wings Aspect ratio formula calculating aspect ratio wingspan squared divided wing area Range 81 111 optimum 101 111 aspect ratio below 61 performance soarability drops noticeably high wing load ings airplane wont climb Out very well nor will climb very high Continued page iSO HANDSOFFCUTII Especially Designed Tapered Wings unique device cutting sigh quality foam wing coree HANDS OFF cuffing both sides same time Available hardware package assemble own board-Specify 30 -40 -50 or 60 ordering size may changed anytime Man Chord tandard Larqer chords available Easy assemble Requires 24 volt Variable Output Power Supply DEALERS WANTED Hunds Off Cut II hardware pactraQe $8750 S & H 24 Volt Variable Output power supply552-50 S & H VIDEO FOAM SHOP Foam Shop Part OneCutting Foam Wings sour long cuts made using HANDS OFF CUT II V H5Only $2995 includes 5 & H lower 48 Foam Shop Part TwoCutting Foam Fuselages sour long cuts made using simple bow VHSOnly $2995 includes 5 5 H lowe 48 SUPER BOND CONTACT ADHESIVE T5e best contact cement have ever used Only $375 6 oz squeeze bottle Enough br 4 1400 square inch wingAdd $200 S & H lower 48 118 inch Phenolic 4 5 36 Board Templates Only $500 S & H NOR-RAY PRODUCTS 5008 Sandbeach Road ISAWichita Falls Texas 78311 Tel f817 6824476 Ruff Stuff $115 per sheet CLAYLaNOSCAPES Stay Tray $210 Mini Glue lipsAdd 20% iftcIoder I- \I1iIi~ 4 $105 Tee Good Stuff Bar AIi~AppIied Design Corporation $300 CA 90610 Mipi RnndqrMini Saw $850 $275 / u u HOLES IN THE SKYE LANIER RCu REBEL CAT NO 78129 A GREAT FLYING BIPE THAT IS CAPABLE OF ANY MANEUVER YOUVE GOT THE GUTS TO DOI Fuselage Length 35Wing Span 50 Rec Engine Size 45-60 4 Stroke 60-80Area 700 sq Flying Weight 6-7 lbsRadio Channels 4 Available favorite hobby dealerReplacement parts available Dealer distributor inquiries Invited Write today free color catalog PO Box 458 Oakwood Georgia 30566 Made USA 404-532-6401 April 1990 49 I Must know hobby business people 2 Must bea capable model builder andflyer 3 Must have Business Administration Degree equivalent practical experience 4 Must have compulsion manage business profitably have nota sit posterior tell people what job will expected bookkeeping cost accounting majority sales advertising public relations work will certainly need fluent typewriter computer keyboard will expected answer djfficult letters fire nice guy isnt getting job done see dont run afoul hundreds government rules regulations will expected responsiblefrr design production except effects cost sales Pay $4000000 range Smith will give better living $10000000 New York Chicago San Francisco Send resume Duke Fox 2400 Knoxville St Fort Smith AR 72901 Fox Manutactulng Co 5305 Towson Avenue 12~yWLJ Fort Smith AR 72901 Phone 501 6461656 PILOT GLASSES. HOW VALUABLE IS YOUR EYESIGHT Adjustable side frames...... free-flow ventilation Extremely light weight added comfort Blocks harmful ultraviolet radiation Attractive case included ________Wraparound frame fits comfortably over prescription glasses tz mist coated scratch resistance Made entirely Polycarbonate impact protection ANSI Z871 specifications Available in Clear shop work $1325 Amber overcast days & late afternoons S14~ Gray S14~ & Mirror S19~ sunny days CA Mask S15~ Paint Mask S2O~ member club hit prop blade thrown 60 engine close range tip blade struck Safety Plus glasses saved him serious injury possibly loss eye incident convinced everyone should wear safety glasses near model airplane engines being run upEd Saul Secretary Treasurer Pikes Peak RC Club EL Prices include shipping end handling FLU5 See hobby dealer first doesnt have what need order direct SAFETY PLUS PO Box 1173 Dept iM Clinton MS 39056 ORDERS ONLY 1-800-842-7233 Cant US Mississippi 601 924-9640 /MO RC Aerobatics/Van Putte Continued page 146 ate pressure would tend limit entries serious among us providing slight increase revenue needed case Raising number events flown quality would have effect promoting participation FAI local level program participants changes would pose very little hardship would take little effort administer mostly consti tute change paperwork system have workable scrap instead fine tun ing makes about much sense throwing family car away because needs gas second item K-Factor Paul Vergers column NSRCA District 3 VP Paul has airplane well-known design has problems wont mention name air plane because Pauls problems typical design may result modifications made us similar prob lems can certainly empathize what Paul wrote modified airplane flew like toad Well Mike Hayden Jim Fife spent day last Saturday trying detoad thing help new whiz-bang Futaba 1024 radios After mixes adjustments readjust ments rereadjustments finally got thing good could get Did succeed making toad prince Actually what got toad life support lot better some things $700 radio wont cure moral Sometimes should just give up move cant make pig sing annoys pig RC Giant Scale/de Vries Continued page 47 6 its stupefying compendium thing youd want know subject great photographer artist Dave goes well beyond techniques wire-cutting wing cores details foam fuselages floats scale cowls fiberglass spinners built simple-tomake foam forms host foam uses large Sailplanes devotes chapter repair damaged foam wings other model parts Its book well worth studying RC Slope Soaring/Triebes Continued page 49 Sweepback Leading edge less 100 Trailing edge less 50 optimum 00 trailing edge sweephack Jetlike sweepback does en hance looping maneuvers gives pitch sta bility much same dihedral does roll Dihedral Optimum 0-2 0 Jf opt 00 dihedral remember wings will look like droop flight Add 1-2-in block under wing tip joining wing halves wings will look right air course know dihedral amounts over 5 0 will give unacceptabletoo much stability roll want roll baby right Airfoil section cant go too far wrong Eppler 374 RG-15 airfoil new Se hg 5D6060 supposed hot kind en hanced Eppler 374 Before deciding thin out airfoil think about what kind flying site youll using site tight doesnt have much operating space below crest go 9-11 % section thickness thinned airfoils tend mush out lose speed pull tight high-G maneu vers other hand intend operate fast lady big hills big lift build 75% Eppler 374 keep maneuvers big smooth fast airfoil big sky environment Wing area vs wing loading An optimum wing area between 500 550 sq greater wing area greater overall weight must arrive target wing load ing about 15-17 oz per sq ft unballasted Speed directly proportional wing load ing forget about building light Instead build strong very clean avoiding unnecessary weight tail extra ounce 150 Model Aviation WANTED Hands Business Manager REQUIREMENTS IULTIMATESPORT RC 255 East Ashland/PO Baa 727/Sada Springs Ideha 83276 $1995 IDEO REVIEW THE CLOUD DANCERS INTERNATIONAL R/C SHOW TEAM MEET THE WORLD RENOWNED CLOUD DANCERS SEE THE EXCITING FOOTAGE OF THEIR F- 15 EAGLES GIANT SCALE WARBIRDS JUMPERS AND THE FAMOUS FLYING MACHINE MUST FOR YOUR VIDEO COLLECTION! 1 HOUR AND 30 MINUTES OF THE CLOUD DANCERS INACTION FINISHED PRODUCT !FL YING! VOL3 IN-DEPTH KIT AND PRODUCT REVIEWS BUILDING SEGMENTS AND EXCITING FLYING SCENES FEATURING SLIPERLUCKYFLY 2JOE PINKSTON ARF SPORT LOW WING AIRPLANE D & R AIRCRAFTS 115TH P47 INNOVATIVE MODELS MASTER SCALE HURRICANEPICAS NEW 15TH SCALE SPITFIREINNOVATIVE MODELS SAAB GRIPENFORMERLY MIKES MODELS SATELLITE CITYS UFO GLUEALSO ROBINAIRES CUSTOM RETRACT SYSTEM APPROXIMATELY 1 HOUR 45 MINUTES SAVE APPROXIMATELY $30006 WITH MANUFACTURERS DISCOUNT COUPONS INCLUDED IN VOLUME 3 [v32][b-1-10-1-10]] AVAILABLE ONLY FROM RC VIDEO REVIEW MAGAZINE 13360 KINGSBURY DR. WEST PALM BEACH FL 33414 790-3435 EACH TAPE $1995 PLUS $250 SHIPPING AND HANDLING CANADIAN ADD $600 FLORIDA ORDERS ADD 6% SALES TAX VISA AND MASTERCUARCE ALSO AVAILABLE ARE VOLUMES 1 AND 2 KING ORANGE AND JETS OVER DELAND NOW AVAILABLE TED AMOUNT OF YEARLY SUBSCRIPTIONS 5 FOR SIX VOLUMES PLUS S & H tail youll need four ounces nose bal ance Chord taper Avoid tip chords under four inches considering Reynolds Number related chord length Undesirable tip stall ag gravated narrow tip chord and/or high taper ratio Purely rectangular Hershey Bar wing planforms give best stall characteristics look awful slow down roll rate Form follows function wing design Tail area horizontal stabilizer has other function aside providing pitch control aircraft nonsymmetrical wing air foil stabs main purpose counter pitch-down tendency higher speeds Unless decide fully symmetrical wing section youll need stab area least 10% wing area just provide pitch stability high-speed Man turer Hi Perfornia IS aft CULPEPPER LS INC 2526 Washington DubuqueIA 52001 319/583-4130 flight stab area 12-15% desirable pro vide adequate pitch authority during low-speed flight takeoff landing Designing own Slope ship Part Two Slope fliers hear fairly regular basis Jef Raskin Jef member San Francisco Vultures active advocate Slope Aerobatics Vultures few clubs around actually hold Aerobatics contests can hope will change more people become involved flying Aerobatics Jef has written long article about optimal de sign acrobatic Sailplanes includes helpful ideas Sailplane design well set rules Slope Aerobatics contests interested building Sloper will truly . ngine 9015 2cyc Wing Area 1100 sq 1218 Acyc Machine Cut Wood Kit including wire landing gear & wing jaining hdwe VISA & MC accepted $120 Add 500 past & handling Add 300 far COD Ohia residents add 603 tax Far free Catalag send SASE Air Flair15138787487 PO Bax 2075 Fairborn Ohia 45324 acrobatic blast fly slope reading article definitely step right direc tion can write Jef Box 1638 Pacifica CA 94044 Swing-wings A number columns ago took short look concept variable-sweep wms put out request tried corporate feature Slope ship long after received letter photos resident F3B expert Northern California Rich Spicer familiar Richs reputation skills Sailplane de signer pilot trust best around Nova Slope Racer series Syn ergy F3B ships represent state art sport what has say about swingwingsContinued page 155 od timer perfectly proportioned modeling Cuartlss Robin 049 EngInes -Channel RIO 41 Wingspan Electric Power OploneI 82205 K: 003 Very few full scale aircrs5 ideally suited ta mudel tugs tse appealing old Curtius Rubin burn tfte spruce linen age beautifully propurtiafled rsbber electric glow engines Pass fun build treioerllke performauce Flyline ModelS Catalog 505 Psons 17031 2739593 INE MODELS INC PO Box 2136 FaIrfax VIrgInIa 22031 USA April 1990 151 $1995 SEE IT ON VIDEO FROM BOX TO $599 c Nut use Electric Starters Made 6061 Aluminum strong enough allow over tightening weighs under 1 oz 1 diameter 11/4 long 114 radius nose minimum AMA requirement 5/32 Torq Hole 3/4 thread depth can use thinnest props 11 thread sizes fit engines market Send us order & well mail out fast MADE IN THE USA B C PRODUCTS 111 N Starkweather Pampa Texas 79065 806 665-6361 D103210/32 EZOS8O5-8mm U 123212/32 L106106-1mm D07107-1mm L108108-1mm D81258-125mm LI 101210-125mm L114281/4-28 L351625/16-24 LI 38243/8-24 VISA MASTERCARD MONEY ORDERS ACCEPTED DEALER INQUIRES WELCOME Just read articte thought would pass some information about comments n swing-wing Sloper guess nothing really new Back around 1976 built successfully flew swing-wing test concept intent time evolve Unlimited Class Slope Racer Like lot other prototypes after developing far enough successful flight just didnt have time money incen tive whatever pursue next step devel opment tnstead t went back proven design continued Nova series model 42 long swept fully flying V-tail rudder-vator wing mounting sort shoulder mount wings full-forward configuration span about 50 in rear position about 36 main reason geometry change reduce frontal area rather change ra tio thickness chord top view wings fully retracted planform delta wing wing movement powered Futaba landing gear servo fully movable flight Flight stability during wing movement maintained two principles CG vari able wing movement ailerons de flected slightly negative wings rotated rear ward~ work Rich did Sailplane 14 years ago made great strides represents just first step evolution swing-wing Sloper todays high-strength lightweight materials high-tech radios birth ul timate swing-wing Sloper far away Rich undoubtedly busy work Synergy 4 SO will up rest us pursue concept further Swing-wings Part II Just thought Power Scale movement about maxed out some exceptional little Slope ships along comes Bob Reynolds incredible F-14B Super Tomcat Bob started Jet Hangar ducted-fan fuselage added slightly larger fly ing surfaces fuselage / scale fly ing surfaces What results ship 80 long spans 94 about 8 ft Projected weight 7/2 lb results ENYA15 SS2O SS45 19 80 120 FOX 19 45 60 120 HB ALL SIZES HP40 120 others IRVING ALL K&B 19 61 OS10 15 20 21 50 60 120 108 ROSSI ALL 8-1 SUPERTIGER 11 15 19 60 61to90 5-8mm 1/4-28 7-1mm 8-1mm 1/4-28 5/16-24 1/4-28 6-1mm 5/16-24 1/4-28 1/4-28 1/4-28 5-8mm 12/32 6-1mm 1/4-28 5/16-24 3/8-24 25mm 5-8mm 1/4-28 5/16-24 2000 6000 10-125mm SATIO 30 60 6-1mm 65 1090 7-1mm 120 270 8-125mm WEBRA 28 61 1/4-28 BOto90 8-125mm MALONEY 1003/8-24 wing loading 157 oz/sq ft gain lit tle advantage lift department Bob uses Eppler 214 root transitioning Eppler 222 tip youre thinking Bob might working little less full deck hold cause doesnt end Tomcat will have fully operational swing-wings just like real thing Anyone has seen real thing fly can imagine gorgeous Bobs F-14 will look sweeps back its wings during knife-edge pass across face slope Bob planning have beauty TnCities Scale Fun-Fly Just seeing ship fly will worth price admission Mini-I Kam-U Another small model companies has sprung up increase Slope Soarings popularity K&A Models owned operated Ken Williams ga rage shop companies make up core kit pro ducers Kens kits great examples high-quality products being turned out two kits Ken producing now Mini-I Kam-U Mini-I has 285-in wingspan area 1674 sq flying weight 95 10 oz kit includes machine-cut plywood balsa parts foam core wings plans instructions complete hardware package Mini-I re quires mini two-channel radio system de signed advanced flier Despite its small size light weight Mini-I needs quite bit wind fly Ken noted plane designed advanced flier definitely true Its small size quickness require pilot steady thumbs good eyes experienced Sloper yearning quick acrobatic ship small slopes Mini-I might just what look ing Kam-U designed intermedi ate flier mind wingspan makes very stable plane yet Kam-U incapable perform ing Aerobatics well specifications 50-in wingspan area 2875 sq flying weight 195 20 ounces kit Mini-t very complete good quality Kam-U designed use standard two-channel radio Continued page 156 THIRTY-SIXTH ANNUAL RADIO CONTROL EXPOSITION APRIL 6 7 8 1990 FRIDAY9amto6pm SATURDAY9amto6pm SUNDAY9 am 430 pm TOLEDO SPORTS ARENA ONE MAIN STREET TOLEDO OHIO TICKETS can purchased door ADVANCE sending self-addressed stamped business size 41/aX9 envelope TICKETS 38235 Castle Romulus Ml 48174 orders above 10 tickets must include double postage US orders must include 25 cents per order handling charge foreign orders must include 50 cents per order handling charge need send addressed envelope will provide necessary postage NOTE Registered Express Type Mail Orders Will Accepted! Include check money order US funds made payable Weak Signals R/C Club Ticket prices $400 per day adults $100 per day children 12 under Please specify number Deadline ticket orders March 30 1990 sales final non-refundable Hotel info map area may obtained sending stamped self-addressed envelope ticket address above Any other Exposition information avail able contacting Wayne Yeager co director ticket address phone 313941-6661 We WillHave TraditionalSwap Shop Saturday Night Auction COMPETITION CLASSES NON-MILITARY SPORT SCALE PLANE AMA RulesI MILITARY SPORT SCALE PLANE IAMA Rules PRECISION SCALE PLANE IAMA RulesI PATTERN PLANE f No Jetaf SPORT MONO-PLANE fnon-scale models SPORT BI-PLANE non-scale models OLD TIMER FREE FLIGHT R/C ASSIST R/C SAILPLANE non-scale models f No Engines HELICOPTER R/C CAR COMPETITION BOAT MILITARY SCALE BOAT PLEASURE POWER BOAT WORKING VESSEL-UNARMED presented Weak Signals R/C Club Toledo Ohio uuW April 1990 155 acranarit A- aaynawx MINI-JET SERIES pl3nes feature balsa construction Designed intermediate flyer mind will accept 25 32 size engine use rear exbaust engine exceptional perfomance Get thrill jet hassles ducted fan New Airfoil Version Fixed Gear Retractablcs New Midi jet 40 45 size Airfoil ror Rctractablea New Mini-Mini Jet 049 10 size Airfoil Retracts Mini Mini Jets Mini Jets ktidi-JetE stoee 0 W8i Canopy $1500$6000Re#act $5000 Sid $2000 Wi Canopy $2000d4 $2600 Wifi Catopy Pitie shipped Post paid xnait tuta Pleuc add $4tXl shipping tundling Parrish Aircrait & Scale Models 52S SW 49th Tet Phntation Fl 33317305 581 4477 Both kits went together quickiy easily should pose no problems intermediate builder would like try out planes yourself check local hobby shop contact Ken directly K&A Models Unlim ited 5990 California Ave Long Beach CA 90805 Dont forget about International Soaring RC Scale Fun Fly Tn-Cities WA coming up May 25-27 still plenty time register annual event can get alt info Wil Byers 632 Meadows Drive East Richland WA 99352 phone 1-509/627-5224 RC Electrics/Kopski Continued page 51 Romey Bukolt man behind Concept Mod els about year ago called discuss plans develop Fleet Electric Romey spe cializes Fleets Concept Models has prod uct line wet-powered ones various sizes chatted also referred him Keith Shaw very same bearded gentleman mentioned above Electric Practitioner Su preme Ann Arbor MI seeI said wasnt Santa Some months went got set plans Romey look over mark up did Keith did too few weeks ago got photo shown herein Concept Models pro totype 40 -powered Fleet can tell kit works dont have price availability info time can get particulars Concept 2906 Grandview Blvd Madison WI 53713 Electric Scale getting very popular kit will add considerably trend brings around Astro time recent conversation Bob Boucher told hes repackaging ever-popular Astro Por terfield attractive new box also hes including gear-drive 25 giant step sense now used seeing 05s packaged ever-expanding number Electrics 25 represents whole new level trend Personally think move going very successful Porterfield has con tinuous production ever since about 1978/79 very successful model air Since has get suitable power system fly way get plane-withmotor idea popularized Goldberg Elec tra several years ago has proven very successful marketing idea witness numbers kits-with-motors now market see no reason new Porserfield wont en joy success kind Some errors crept some offerings January issue MA Id like offer some corrections First off Skyvolt article centermost photo page 32 illustrates landing gear tachment caption mentions fiberglass matting text page 143 mentions iron-on cloth reinforcement latter correct have no idea former came theres trace fiberglass either Skyvolt shop Santa Naa Editing Elves Maybe As aside guess should explain some spirit Column coming fromIm writing December 25 1989 Let expand last comtttents bit have using iron-on cloth reinforcement modeling over two decades find GUIDE TO OVER 400 AIRCRAFT MUSEUMS CROSS REFERENCE BY AIRCRAFT SEND $700 postage included TO MICHAEL SLAUGHER See MA 6-89 P110 124 E Foster Parkway Fort Wayne IN 46806-1730 1-219-744-1020 Southwest RC Flying Year round flight school Five day course $350 Learn fLy planes Send SASE complete info to 2818 Carolina NE Albuquerque NM 87110 505 881-3799 extremely easy use very effective Wont work well fiberglass eases com pound curved areas does great job places use white Bondex brand manufactured Wrights Stock #230 002 costs about $1 6/2 x 14-in piece Bondex readily avail able sewing variety stores intended clothing patch material Isis basically cloth material heat-activated adhesive side flows about Wool setting typical household clothes iron use simply cut material outline size put place want cover pa per towel bring hot iron bear towel following time instructions supplied product paper used prevent adhesive soaks its side cloth way through goo-ing up iron glue sticks like crazy balsa ply cloth cools youve got tough sembly Anyway always install such cloth reinforcements first part covering job cant speak materials, find MonoKote goes over cloth nicely case Skyvolt used piece ma terial measuring about 3 x 4/ wrapped around ply landing gear mounting plate extends up sides fuselage about % As installation aid first adhered ply plate two flaps intended go up sides held out heats way fu selage sides masking tape latter re moved course before heat applied side pieces way used hold wet-powered firewalls place same waybut Ive grown out stage now second instance glitches KRC meet article erroneously referred Bill Winters Le Crate design Heron made its appearance meet earlier years Two other minor errors also found wy article opening paragraph page 87 gives participation 110 118a bit larger last years 113 despite rain am making fine point Because size get sing very important As discussed arti cle meet growth field size closing other KRC presently considering alter natives accommodate situation statement page 188 came out plane designed meet QSPRA Formula 120 rules 1/4 scale model accepts 60120 ci engines Features Epoxy glass fuselage foam wing contnsction Dural landing gear scale landing gear dd $1500 lufl kit S175O0 ad han IMPORTED DIESELS A-MAurorabcEDMyygJi.Ah PAWfaplln 8tandrd & R/C.OIg4g Aero Marine VIntag.Sporg & Conteat Send ioo informatlom ICARLSON ENGINE IMPORTS IPhoenI AZ
Edition: Model Aviation - 1990/04
Page Numbers: 48, 49, 150, 151, 155, 156
DESIGNING Slope ship Without doubt recent proliferation Slope Soarer kits has made much easier find plane fits needs still might difficult find ship ideal Maybe want ship will rip tear small slope doing high-G gutwrenching maneuvers maybe want will use up lotsa airspace huge fast smooth maneuvers Whatever ideal Slope site plane might way get ex actly what looking design plane yourself Im going try kid saying designing Slope ship easy because its lot time effort go designing refining Sailplane anyone says differ ently either giving line simply has never tried doesnt know better Occa sionally will come across plane flies great right off hoard few far between Most designs take months years research design construction testing redesign testing come up desired re suIts Dont get wrong idea though Al though time-consuming stuff im measurably fun incredibly rewarding plane reaches its final form have ever urge design work just werent sure start maybe following piece will give inspiration little push right direction article entitled Looking Miss Go-Fast writ ten Pete Marshall Slope Soaring News gives some basic parameters Slope ship de Left Bob Reynolds what may ultimate Slope Scale ship F-14B Super Tomcat spans almost 8 ft weighs about 75 lb and3 represents total Slope madness Right Bob started out glass fuselage ducted-fan kit added own slightly modified flying surfaces created Slope Soaring dream beast will fly International Soaring RC Scale Fun Fly Tn-Cities WA Morey photo Left wings full sweep position ship spans 36 inches compared 60-in span wings full forward Using pow erful landing gear servo wings fully movable flight CG Rich Spicer photo Right Rich Spicer designed built wing Sloper 14 years ago Rich presents some interesting ideas plane concept swing wings column Rich Spicer pooso 48 Model Aviation Radio Control Slope Soaring Mark Triebes 20794 Kreisler Ct Saratoga CA 95070 Kam-U comes same stable Mini-I its much docile simple build easy fly Kam-U good aileron trainer just fun flier Ken Williams photo Mini-I spans just 285 weighs less 10 oz dont let fool Mini-I all-out Sloper good eyes steady thumbs Photo Williams signs Could ad Slope Soaring News personals column Hi Gorgeous Im good-looking aggres sive new pilot yen exotic Ive sembled three four kits can build pretty well now fly inverted make right moves time get bored flying rudder ships Im seriously ailerons Aerobatics want go faster aileron trainer just wont sleek beautiful aerobatic very very fast also sensi tive have no vices except speed love moonlit walks windswept ridges fresh ocean gales under wings thrive getting loaded lead kind kit live imagination can meet fall love sounds like Pete might little bit loaded himself maybe just kinda confused us Slope Soarers have never kind always fly straight level MT sounds like kind girl youd like meet read Ill introduce you can go far want world speed Aerobatics Well put together Aerobatic Sloper capa ble speeds over 100 mph 300-ft-dia loops four five axial rolls going straight up article about design parameters proportions will help select basic skele ton own Miss Go-Fast shape alive imagination job will flesh out framework have decided upon Learn before turn say can t draw cant build grab some pencils erasers rulers french curves lots drawing paper Start sketching until looks right first read stuff Fuselage basic function fuselage hold wing tail apart proper inci dence angle other fuselage also comes handy stuff full radio gear lots lead Its shape isnt particularly important So original shape pleases just wont come out imagination dont give up Miss Go-Fast could DeHavilland Dash 8 Reno P-5 Iwhatever turns Just stay within design parameters Wingspan Range 60-80 optimum 70-78 want go real fast youve gotta get really high So want get up high still able see plane need some real wingspan Plus other things being equal big wings fly better little wings Aspect ratio formula calculating aspect ratio wingspan squared divided wing area Range 81 111 optimum 101 111 aspect ratio below 61 performance soarability drops noticeably high wing load ings airplane wont climb Out very well nor will climb very high Continued page iSO HANDSOFFCUTII Especially Designed Tapered Wings unique device cutting sigh quality foam wing coree HANDS OFF cuffing both sides same time Available hardware package assemble own board-Specify 30 -40 -50 or 60 ordering size may changed anytime Man Chord tandard Larqer chords available Easy assemble Requires 24 volt Variable Output Power Supply DEALERS WANTED Hunds Off Cut II hardware pactraQe $8750 S & H 24 Volt Variable Output power supply552-50 S & H VIDEO FOAM SHOP Foam Shop Part OneCutting Foam Wings sour long cuts made using HANDS OFF CUT II V H5Only $2995 includes 5 & H lower 48 Foam Shop Part TwoCutting Foam Fuselages sour long cuts made using simple bow VHSOnly $2995 includes 5 5 H lowe 48 SUPER BOND CONTACT ADHESIVE T5e best contact cement have ever used Only $375 6 oz squeeze bottle Enough br 4 1400 square inch wingAdd $200 S & H lower 48 118 inch Phenolic 4 5 36 Board Templates Only $500 S & H NOR-RAY PRODUCTS 5008 Sandbeach Road ISAWichita Falls Texas 78311 Tel f817 6824476 Ruff Stuff $115 per sheet CLAYLaNOSCAPES Stay Tray $210 Mini Glue lipsAdd 20% iftcIoder I- \I1iIi~ 4 $105 Tee Good Stuff Bar AIi~AppIied Design Corporation $300 CA 90610 Mipi RnndqrMini Saw $850 $275 / u u HOLES IN THE SKYE LANIER RCu REBEL CAT NO 78129 A GREAT FLYING BIPE THAT IS CAPABLE OF ANY MANEUVER YOUVE GOT THE GUTS TO DOI Fuselage Length 35Wing Span 50 Rec Engine Size 45-60 4 Stroke 60-80Area 700 sq Flying Weight 6-7 lbsRadio Channels 4 Available favorite hobby dealerReplacement parts available Dealer distributor inquiries Invited Write today free color catalog PO Box 458 Oakwood Georgia 30566 Made USA 404-532-6401 April 1990 49 I Must know hobby business people 2 Must bea capable model builder andflyer 3 Must have Business Administration Degree equivalent practical experience 4 Must have compulsion manage business profitably have nota sit posterior tell people what job will expected bookkeeping cost accounting majority sales advertising public relations work will certainly need fluent typewriter computer keyboard will expected answer djfficult letters fire nice guy isnt getting job done see dont run afoul hundreds government rules regulations will expected responsiblefrr design production except effects cost sales Pay $4000000 range Smith will give better living $10000000 New York Chicago San Francisco Send resume Duke Fox 2400 Knoxville St Fort Smith AR 72901 Fox Manutactulng Co 5305 Towson Avenue 12~yWLJ Fort Smith AR 72901 Phone 501 6461656 PILOT GLASSES. HOW VALUABLE IS YOUR EYESIGHT Adjustable side frames...... free-flow ventilation Extremely light weight added comfort Blocks harmful ultraviolet radiation Attractive case included ________Wraparound frame fits comfortably over prescription glasses tz mist coated scratch resistance Made entirely Polycarbonate impact protection ANSI Z871 specifications Available in Clear shop work $1325 Amber overcast days & late afternoons S14~ Gray S14~ & Mirror S19~ sunny days CA Mask S15~ Paint Mask S2O~ member club hit prop blade thrown 60 engine close range tip blade struck Safety Plus glasses saved him serious injury possibly loss eye incident convinced everyone should wear safety glasses near model airplane engines being run upEd Saul Secretary Treasurer Pikes Peak RC Club EL Prices include shipping end handling FLU5 See hobby dealer first doesnt have what need order direct SAFETY PLUS PO Box 1173 Dept iM Clinton MS 39056 ORDERS ONLY 1-800-842-7233 Cant US Mississippi 601 924-9640 /MO RC Aerobatics/Van Putte Continued page 146 ate pressure would tend limit entries serious among us providing slight increase revenue needed case Raising number events flown quality would have effect promoting participation FAI local level program participants changes would pose very little hardship would take little effort administer mostly consti tute change paperwork system have workable scrap instead fine tun ing makes about much sense throwing family car away because needs gas second item K-Factor Paul Vergers column NSRCA District 3 VP Paul has airplane well-known design has problems wont mention name air plane because Pauls problems typical design may result modifications made us similar prob lems can certainly empathize what Paul wrote modified airplane flew like toad Well Mike Hayden Jim Fife spent day last Saturday trying detoad thing help new whiz-bang Futaba 1024 radios After mixes adjustments readjust ments rereadjustments finally got thing good could get Did succeed making toad prince Actually what got toad life support lot better some things $700 radio wont cure moral Sometimes should just give up move cant make pig sing annoys pig RC Giant Scale/de Vries Continued page 47 6 its stupefying compendium thing youd want know subject great photographer artist Dave goes well beyond techniques wire-cutting wing cores details foam fuselages floats scale cowls fiberglass spinners built simple-tomake foam forms host foam uses large Sailplanes devotes chapter repair damaged foam wings other model parts Its book well worth studying RC Slope Soaring/Triebes Continued page 49 Sweepback Leading edge less 100 Trailing edge less 50 optimum 00 trailing edge sweephack Jetlike sweepback does en hance looping maneuvers gives pitch sta bility much same dihedral does roll Dihedral Optimum 0-2 0 Jf opt 00 dihedral remember wings will look like droop flight Add 1-2-in block under wing tip joining wing halves wings will look right air course know dihedral amounts over 5 0 will give unacceptabletoo much stability roll want roll baby right Airfoil section cant go too far wrong Eppler 374 RG-15 airfoil new Se hg 5D6060 supposed hot kind en hanced Eppler 374 Before deciding thin out airfoil think about what kind flying site youll using site tight doesnt have much operating space below crest go 9-11 % section thickness thinned airfoils tend mush out lose speed pull tight high-G maneu vers other hand intend operate fast lady big hills big lift build 75% Eppler 374 keep maneuvers big smooth fast airfoil big sky environment Wing area vs wing loading An optimum wing area between 500 550 sq greater wing area greater overall weight must arrive target wing load ing about 15-17 oz per sq ft unballasted Speed directly proportional wing load ing forget about building light Instead build strong very clean avoiding unnecessary weight tail extra ounce 150 Model Aviation WANTED Hands Business Manager REQUIREMENTS IULTIMATESPORT RC 255 East Ashland/PO Baa 727/Sada Springs Ideha 83276 $1995 IDEO REVIEW THE CLOUD DANCERS INTERNATIONAL R/C SHOW TEAM MEET THE WORLD RENOWNED CLOUD DANCERS SEE THE EXCITING FOOTAGE OF THEIR F- 15 EAGLES GIANT SCALE WARBIRDS JUMPERS AND THE FAMOUS FLYING MACHINE MUST FOR YOUR VIDEO COLLECTION! 1 HOUR AND 30 MINUTES OF THE CLOUD DANCERS INACTION FINISHED PRODUCT !FL YING! VOL3 IN-DEPTH KIT AND PRODUCT REVIEWS BUILDING SEGMENTS AND EXCITING FLYING SCENES FEATURING SLIPERLUCKYFLY 2JOE PINKSTON ARF SPORT LOW WING AIRPLANE D & R AIRCRAFTS 115TH P47 INNOVATIVE MODELS MASTER SCALE HURRICANEPICAS NEW 15TH SCALE SPITFIREINNOVATIVE MODELS SAAB GRIPENFORMERLY MIKES MODELS SATELLITE CITYS UFO GLUEALSO ROBINAIRES CUSTOM RETRACT SYSTEM APPROXIMATELY 1 HOUR 45 MINUTES SAVE APPROXIMATELY $30006 WITH MANUFACTURERS DISCOUNT COUPONS INCLUDED IN VOLUME 3 [v32][b-1-10-1-10]] AVAILABLE ONLY FROM RC VIDEO REVIEW MAGAZINE 13360 KINGSBURY DR. WEST PALM BEACH FL 33414 790-3435 EACH TAPE $1995 PLUS $250 SHIPPING AND HANDLING CANADIAN ADD $600 FLORIDA ORDERS ADD 6% SALES TAX VISA AND MASTERCUARCE ALSO AVAILABLE ARE VOLUMES 1 AND 2 KING ORANGE AND JETS OVER DELAND NOW AVAILABLE TED AMOUNT OF YEARLY SUBSCRIPTIONS 5 FOR SIX VOLUMES PLUS S & H tail youll need four ounces nose bal ance Chord taper Avoid tip chords under four inches considering Reynolds Number related chord length Undesirable tip stall ag gravated narrow tip chord and/or high taper ratio Purely rectangular Hershey Bar wing planforms give best stall characteristics look awful slow down roll rate Form follows function wing design Tail area horizontal stabilizer has other function aside providing pitch control aircraft nonsymmetrical wing air foil stabs main purpose counter pitch-down tendency higher speeds Unless decide fully symmetrical wing section youll need stab area least 10% wing area just provide pitch stability high-speed Man turer Hi Perfornia IS aft CULPEPPER LS INC 2526 Washington DubuqueIA 52001 319/583-4130 flight stab area 12-15% desirable pro vide adequate pitch authority during low-speed flight takeoff landing Designing own Slope ship Part Two Slope fliers hear fairly regular basis Jef Raskin Jef member San Francisco Vultures active advocate Slope Aerobatics Vultures few clubs around actually hold Aerobatics contests can hope will change more people become involved flying Aerobatics Jef has written long article about optimal de sign acrobatic Sailplanes includes helpful ideas Sailplane design well set rules Slope Aerobatics contests interested building Sloper will truly . ngine 9015 2cyc Wing Area 1100 sq 1218 Acyc Machine Cut Wood Kit including wire landing gear & wing jaining hdwe VISA & MC accepted $120 Add 500 past & handling Add 300 far COD Ohia residents add 603 tax Far free Catalag send SASE Air Flair15138787487 PO Bax 2075 Fairborn Ohia 45324 acrobatic blast fly slope reading article definitely step right direc tion can write Jef Box 1638 Pacifica CA 94044 Swing-wings A number columns ago took short look concept variable-sweep wms put out request tried corporate feature Slope ship long after received letter photos resident F3B expert Northern California Rich Spicer familiar Richs reputation skills Sailplane de signer pilot trust best around Nova Slope Racer series Syn ergy F3B ships represent state art sport what has say about swingwingsContinued page 155 od timer perfectly proportioned modeling Cuartlss Robin 049 EngInes -Channel RIO 41 Wingspan Electric Power OploneI 82205 K: 003 Very few full scale aircrs5 ideally suited ta mudel tugs tse appealing old Curtius Rubin burn tfte spruce linen age beautifully propurtiafled rsbber electric glow engines Pass fun build treioerllke performauce Flyline ModelS Catalog 505 Psons 17031 2739593 INE MODELS INC PO Box 2136 FaIrfax VIrgInIa 22031 USA April 1990 151 $1995 SEE IT ON VIDEO FROM BOX TO $599 c Nut use Electric Starters Made 6061 Aluminum strong enough allow over tightening weighs under 1 oz 1 diameter 11/4 long 114 radius nose minimum AMA requirement 5/32 Torq Hole 3/4 thread depth can use thinnest props 11 thread sizes fit engines market Send us order & well mail out fast MADE IN THE USA B C PRODUCTS 111 N Starkweather Pampa Texas 79065 806 665-6361 D103210/32 EZOS8O5-8mm U 123212/32 L106106-1mm D07107-1mm L108108-1mm D81258-125mm LI 101210-125mm L114281/4-28 L351625/16-24 LI 38243/8-24 VISA MASTERCARD MONEY ORDERS ACCEPTED DEALER INQUIRES WELCOME Just read articte thought would pass some information about comments n swing-wing Sloper guess nothing really new Back around 1976 built successfully flew swing-wing test concept intent time evolve Unlimited Class Slope Racer Like lot other prototypes after developing far enough successful flight just didnt have time money incen tive whatever pursue next step devel opment tnstead t went back proven design continued Nova series model 42 long swept fully flying V-tail rudder-vator wing mounting sort shoulder mount wings full-forward configuration span about 50 in rear position about 36 main reason geometry change reduce frontal area rather change ra tio thickness chord top view wings fully retracted planform delta wing wing movement powered Futaba landing gear servo fully movable flight Flight stability during wing movement maintained two principles CG vari able wing movement ailerons de flected slightly negative wings rotated rear ward~ work Rich did Sailplane 14 years ago made great strides represents just first step evolution swing-wing Sloper todays high-strength lightweight materials high-tech radios birth ul timate swing-wing Sloper far away Rich undoubtedly busy work Synergy 4 SO will up rest us pursue concept further Swing-wings Part II Just thought Power Scale movement about maxed out some exceptional little Slope ships along comes Bob Reynolds incredible F-14B Super Tomcat Bob started Jet Hangar ducted-fan fuselage added slightly larger fly ing surfaces fuselage / scale fly ing surfaces What results ship 80 long spans 94 about 8 ft Projected weight 7/2 lb results ENYA15 SS2O SS45 19 80 120 FOX 19 45 60 120 HB ALL SIZES HP40 120 others IRVING ALL K&B 19 61 OS10 15 20 21 50 60 120 108 ROSSI ALL 8-1 SUPERTIGER 11 15 19 60 61to90 5-8mm 1/4-28 7-1mm 8-1mm 1/4-28 5/16-24 1/4-28 6-1mm 5/16-24 1/4-28 1/4-28 1/4-28 5-8mm 12/32 6-1mm 1/4-28 5/16-24 3/8-24 25mm 5-8mm 1/4-28 5/16-24 2000 6000 10-125mm SATIO 30 60 6-1mm 65 1090 7-1mm 120 270 8-125mm WEBRA 28 61 1/4-28 BOto90 8-125mm MALONEY 1003/8-24 wing loading 157 oz/sq ft gain lit tle advantage lift department Bob uses Eppler 214 root transitioning Eppler 222 tip youre thinking Bob might working little less full deck hold cause doesnt end Tomcat will have fully operational swing-wings just like real thing Anyone has seen real thing fly can imagine gorgeous Bobs F-14 will look sweeps back its wings during knife-edge pass across face slope Bob planning have beauty TnCities Scale Fun-Fly Just seeing ship fly will worth price admission Mini-I Kam-U Another small model companies has sprung up increase Slope Soarings popularity K&A Models owned operated Ken Williams ga rage shop companies make up core kit pro ducers Kens kits great examples high-quality products being turned out two kits Ken producing now Mini-I Kam-U Mini-I has 285-in wingspan area 1674 sq flying weight 95 10 oz kit includes machine-cut plywood balsa parts foam core wings plans instructions complete hardware package Mini-I re quires mini two-channel radio system de signed advanced flier Despite its small size light weight Mini-I needs quite bit wind fly Ken noted plane designed advanced flier definitely true Its small size quickness require pilot steady thumbs good eyes experienced Sloper yearning quick acrobatic ship small slopes Mini-I might just what look ing Kam-U designed intermedi ate flier mind wingspan makes very stable plane yet Kam-U incapable perform ing Aerobatics well specifications 50-in wingspan area 2875 sq flying weight 195 20 ounces kit Mini-t very complete good quality Kam-U designed use standard two-channel radio Continued page 156 THIRTY-SIXTH ANNUAL RADIO CONTROL EXPOSITION APRIL 6 7 8 1990 FRIDAY9amto6pm SATURDAY9amto6pm SUNDAY9 am 430 pm TOLEDO SPORTS ARENA ONE MAIN STREET TOLEDO OHIO TICKETS can purchased door ADVANCE sending self-addressed stamped business size 41/aX9 envelope TICKETS 38235 Castle Romulus Ml 48174 orders above 10 tickets must include double postage US orders must include 25 cents per order handling charge foreign orders must include 50 cents per order handling charge need send addressed envelope will provide necessary postage NOTE Registered Express Type Mail Orders Will Accepted! Include check money order US funds made payable Weak Signals R/C Club Ticket prices $400 per day adults $100 per day children 12 under Please specify number Deadline ticket orders March 30 1990 sales final non-refundable Hotel info map area may obtained sending stamped self-addressed envelope ticket address above Any other Exposition information avail able contacting Wayne Yeager co director ticket address phone 313941-6661 We WillHave TraditionalSwap Shop Saturday Night Auction COMPETITION CLASSES NON-MILITARY SPORT SCALE PLANE AMA RulesI MILITARY SPORT SCALE PLANE IAMA Rules PRECISION SCALE PLANE IAMA RulesI PATTERN PLANE f No Jetaf SPORT MONO-PLANE fnon-scale models SPORT BI-PLANE non-scale models OLD TIMER FREE FLIGHT R/C ASSIST R/C SAILPLANE non-scale models f No Engines HELICOPTER R/C CAR COMPETITION BOAT MILITARY SCALE BOAT PLEASURE POWER BOAT WORKING VESSEL-UNARMED presented Weak Signals R/C Club Toledo Ohio uuW April 1990 155 acranarit A- aaynawx MINI-JET SERIES pl3nes feature balsa construction Designed intermediate flyer mind will accept 25 32 size engine use rear exbaust engine exceptional perfomance Get thrill jet hassles ducted fan New Airfoil Version Fixed Gear Retractablcs New Midi jet 40 45 size Airfoil ror Rctractablea New Mini-Mini Jet 049 10 size Airfoil Retracts Mini Mini Jets Mini Jets ktidi-JetE stoee 0 W8i Canopy $1500$6000Re#act $5000 Sid $2000 Wi Canopy $2000d4 $2600 Wifi Catopy Pitie shipped Post paid xnait tuta Pleuc add $4tXl shipping tundling Parrish Aircrait & Scale Models 52S SW 49th Tet Phntation Fl 33317305 581 4477 Both kits went together quickiy easily should pose no problems intermediate builder would like try out planes yourself check local hobby shop contact Ken directly K&A Models Unlim ited 5990 California Ave Long Beach CA 90805 Dont forget about International Soaring RC Scale Fun Fly Tn-Cities WA coming up May 25-27 still plenty time register annual event can get alt info Wil Byers 632 Meadows Drive East Richland WA 99352 phone 1-509/627-5224 RC Electrics/Kopski Continued page 51 Romey Bukolt man behind Concept Mod els about year ago called discuss plans develop Fleet Electric Romey spe cializes Fleets Concept Models has prod uct line wet-powered ones various sizes chatted also referred him Keith Shaw very same bearded gentleman mentioned above Electric Practitioner Su preme Ann Arbor MI seeI said wasnt Santa Some months went got set plans Romey look over mark up did Keith did too few weeks ago got photo shown herein Concept Models pro totype 40 -powered Fleet can tell kit works dont have price availability info time can get particulars Concept 2906 Grandview Blvd Madison WI 53713 Electric Scale getting very popular kit will add considerably trend brings around Astro time recent conversation Bob Boucher told hes repackaging ever-popular Astro Por terfield attractive new box also hes including gear-drive 25 giant step sense now used seeing 05s packaged ever-expanding number Electrics 25 represents whole new level trend Personally think move going very successful Porterfield has con tinuous production ever since about 1978/79 very successful model air Since has get suitable power system fly way get plane-withmotor idea popularized Goldberg Elec tra several years ago has proven very successful marketing idea witness numbers kits-with-motors now market see no reason new Porserfield wont en joy success kind Some errors crept some offerings January issue MA Id like offer some corrections First off Skyvolt article centermost photo page 32 illustrates landing gear tachment caption mentions fiberglass matting text page 143 mentions iron-on cloth reinforcement latter correct have no idea former came theres trace fiberglass either Skyvolt shop Santa Naa Editing Elves Maybe As aside guess should explain some spirit Column coming fromIm writing December 25 1989 Let expand last comtttents bit have using iron-on cloth reinforcement modeling over two decades find GUIDE TO OVER 400 AIRCRAFT MUSEUMS CROSS REFERENCE BY AIRCRAFT SEND $700 postage included TO MICHAEL SLAUGHER See MA 6-89 P110 124 E Foster Parkway Fort Wayne IN 46806-1730 1-219-744-1020 Southwest RC Flying Year round flight school Five day course $350 Learn fLy planes Send SASE complete info to 2818 Carolina NE Albuquerque NM 87110 505 881-3799 extremely easy use very effective Wont work well fiberglass eases com pound curved areas does great job places use white Bondex brand manufactured Wrights Stock #230 002 costs about $1 6/2 x 14-in piece Bondex readily avail able sewing variety stores intended clothing patch material Isis basically cloth material heat-activated adhesive side flows about Wool setting typical household clothes iron use simply cut material outline size put place want cover pa per towel bring hot iron bear towel following time instructions supplied product paper used prevent adhesive soaks its side cloth way through goo-ing up iron glue sticks like crazy balsa ply cloth cools youve got tough sembly Anyway always install such cloth reinforcements first part covering job cant speak materials, find MonoKote goes over cloth nicely case Skyvolt used piece ma terial measuring about 3 x 4/ wrapped around ply landing gear mounting plate extends up sides fuselage about % As installation aid first adhered ply plate two flaps intended go up sides held out heats way fu selage sides masking tape latter re moved course before heat applied side pieces way used hold wet-powered firewalls place same waybut Ive grown out stage now second instance glitches KRC meet article erroneously referred Bill Winters Le Crate design Heron made its appearance meet earlier years Two other minor errors also found wy article opening paragraph page 87 gives participation 110 118a bit larger last years 113 despite rain am making fine point Because size get sing very important As discussed arti cle meet growth field size closing other KRC presently considering alter natives accommodate situation statement page 188 came out plane designed meet QSPRA Formula 120 rules 1/4 scale model accepts 60120 ci engines Features Epoxy glass fuselage foam wing contnsction Dural landing gear scale landing gear dd $1500 lufl kit S175O0 ad han IMPORTED DIESELS A-MAurorabcEDMyygJi.Ah PAWfaplln 8tandrd & R/C.OIg4g Aero Marine VIntag.Sporg & Conteat Send ioo informatlom ICARLSON ENGINE IMPORTS IPhoenI AZ
Edition: Model Aviation - 1990/04
Page Numbers: 48, 49, 150, 151, 155, 156
DESIGNING Slope ship Without doubt recent proliferation Slope Soarer kits has made much easier find plane fits needs still might difficult find ship ideal Maybe want ship will rip tear small slope doing high-G gutwrenching maneuvers maybe want will use up lotsa airspace huge fast smooth maneuvers Whatever ideal Slope site plane might way get ex actly what looking design plane yourself Im going try kid saying designing Slope ship easy because its lot time effort go designing refining Sailplane anyone says differ ently either giving line simply has never tried doesnt know better Occa sionally will come across plane flies great right off hoard few far between Most designs take months years research design construction testing redesign testing come up desired re suIts Dont get wrong idea though Al though time-consuming stuff im measurably fun incredibly rewarding plane reaches its final form have ever urge design work just werent sure start maybe following piece will give inspiration little push right direction article entitled Looking Miss Go-Fast writ ten Pete Marshall Slope Soaring News gives some basic parameters Slope ship de Left Bob Reynolds what may ultimate Slope Scale ship F-14B Super Tomcat spans almost 8 ft weighs about 75 lb and3 represents total Slope madness Right Bob started out glass fuselage ducted-fan kit added own slightly modified flying surfaces created Slope Soaring dream beast will fly International Soaring RC Scale Fun Fly Tn-Cities WA Morey photo Left wings full sweep position ship spans 36 inches compared 60-in span wings full forward Using pow erful landing gear servo wings fully movable flight CG Rich Spicer photo Right Rich Spicer designed built wing Sloper 14 years ago Rich presents some interesting ideas plane concept swing wings column Rich Spicer pooso 48 Model Aviation Radio Control Slope Soaring Mark Triebes 20794 Kreisler Ct Saratoga CA 95070 Kam-U comes same stable Mini-I its much docile simple build easy fly Kam-U good aileron trainer just fun flier Ken Williams photo Mini-I spans just 285 weighs less 10 oz dont let fool Mini-I all-out Sloper good eyes steady thumbs Photo Williams signs Could ad Slope Soaring News personals column Hi Gorgeous Im good-looking aggres sive new pilot yen exotic Ive sembled three four kits can build pretty well now fly inverted make right moves time get bored flying rudder ships Im seriously ailerons Aerobatics want go faster aileron trainer just wont sleek beautiful aerobatic very very fast also sensi tive have no vices except speed love moonlit walks windswept ridges fresh ocean gales under wings thrive getting loaded lead kind kit live imagination can meet fall love sounds like Pete might little bit loaded himself maybe just kinda confused us Slope Soarers have never kind always fly straight level MT sounds like kind girl youd like meet read Ill introduce you can go far want world speed Aerobatics Well put together Aerobatic Sloper capa ble speeds over 100 mph 300-ft-dia loops four five axial rolls going straight up article about design parameters proportions will help select basic skele ton own Miss Go-Fast shape alive imagination job will flesh out framework have decided upon Learn before turn say can t draw cant build grab some pencils erasers rulers french curves lots drawing paper Start sketching until looks right first read stuff Fuselage basic function fuselage hold wing tail apart proper inci dence angle other fuselage also comes handy stuff full radio gear lots lead Its shape isnt particularly important So original shape pleases just wont come out imagination dont give up Miss Go-Fast could DeHavilland Dash 8 Reno P-5 Iwhatever turns Just stay within design parameters Wingspan Range 60-80 optimum 70-78 want go real fast youve gotta get really high So want get up high still able see plane need some real wingspan Plus other things being equal big wings fly better little wings Aspect ratio formula calculating aspect ratio wingspan squared divided wing area Range 81 111 optimum 101 111 aspect ratio below 61 performance soarability drops noticeably high wing load ings airplane wont climb Out very well nor will climb very high Continued page iSO HANDSOFFCUTII Especially Designed Tapered Wings unique device cutting sigh quality foam wing coree HANDS OFF cuffing both sides same time Available hardware package assemble own board-Specify 30 -40 -50 or 60 ordering size may changed anytime Man Chord tandard Larqer chords available Easy assemble Requires 24 volt Variable Output Power Supply DEALERS WANTED Hunds Off Cut II hardware pactraQe $8750 S & H 24 Volt Variable Output power supply552-50 S & H VIDEO FOAM SHOP Foam Shop Part OneCutting Foam Wings sour long cuts made using HANDS OFF CUT II V H5Only $2995 includes 5 & H lower 48 Foam Shop Part TwoCutting Foam Fuselages sour long cuts made using simple bow VHSOnly $2995 includes 5 5 H lowe 48 SUPER BOND CONTACT ADHESIVE T5e best contact cement have ever used Only $375 6 oz squeeze bottle Enough br 4 1400 square inch wingAdd $200 S & H lower 48 118 inch Phenolic 4 5 36 Board Templates Only $500 S & H NOR-RAY PRODUCTS 5008 Sandbeach Road ISAWichita Falls Texas 78311 Tel f817 6824476 Ruff Stuff $115 per sheet CLAYLaNOSCAPES Stay Tray $210 Mini Glue lipsAdd 20% iftcIoder I- \I1iIi~ 4 $105 Tee Good Stuff Bar AIi~AppIied Design Corporation $300 CA 90610 Mipi RnndqrMini Saw $850 $275 / u u HOLES IN THE SKYE LANIER RCu REBEL CAT NO 78129 A GREAT FLYING BIPE THAT IS CAPABLE OF ANY MANEUVER YOUVE GOT THE GUTS TO DOI Fuselage Length 35Wing Span 50 Rec Engine Size 45-60 4 Stroke 60-80Area 700 sq Flying Weight 6-7 lbsRadio Channels 4 Available favorite hobby dealerReplacement parts available Dealer distributor inquiries Invited Write today free color catalog PO Box 458 Oakwood Georgia 30566 Made USA 404-532-6401 April 1990 49 I Must know hobby business people 2 Must bea capable model builder andflyer 3 Must have Business Administration Degree equivalent practical experience 4 Must have compulsion manage business profitably have nota sit posterior tell people what job will expected bookkeeping cost accounting majority sales advertising public relations work will certainly need fluent typewriter computer keyboard will expected answer djfficult letters fire nice guy isnt getting job done see dont run afoul hundreds government rules regulations will expected responsiblefrr design production except effects cost sales Pay $4000000 range Smith will give better living $10000000 New York Chicago San Francisco Send resume Duke Fox 2400 Knoxville St Fort Smith AR 72901 Fox Manutactulng Co 5305 Towson Avenue 12~yWLJ Fort Smith AR 72901 Phone 501 6461656 PILOT GLASSES. HOW VALUABLE IS YOUR EYESIGHT Adjustable side frames...... free-flow ventilation Extremely light weight added comfort Blocks harmful ultraviolet radiation Attractive case included ________Wraparound frame fits comfortably over prescription glasses tz mist coated scratch resistance Made entirely Polycarbonate impact protection ANSI Z871 specifications Available in Clear shop work $1325 Amber overcast days & late afternoons S14~ Gray S14~ & Mirror S19~ sunny days CA Mask S15~ Paint Mask S2O~ member club hit prop blade thrown 60 engine close range tip blade struck Safety Plus glasses saved him serious injury possibly loss eye incident convinced everyone should wear safety glasses near model airplane engines being run upEd Saul Secretary Treasurer Pikes Peak RC Club EL Prices include shipping end handling FLU5 See hobby dealer first doesnt have what need order direct SAFETY PLUS PO Box 1173 Dept iM Clinton MS 39056 ORDERS ONLY 1-800-842-7233 Cant US Mississippi 601 924-9640 /MO RC Aerobatics/Van Putte Continued page 146 ate pressure would tend limit entries serious among us providing slight increase revenue needed case Raising number events flown quality would have effect promoting participation FAI local level program participants changes would pose very little hardship would take little effort administer mostly consti tute change paperwork system have workable scrap instead fine tun ing makes about much sense throwing family car away because needs gas second item K-Factor Paul Vergers column NSRCA District 3 VP Paul has airplane well-known design has problems wont mention name air plane because Pauls problems typical design may result modifications made us similar prob lems can certainly empathize what Paul wrote modified airplane flew like toad Well Mike Hayden Jim Fife spent day last Saturday trying detoad thing help new whiz-bang Futaba 1024 radios After mixes adjustments readjust ments rereadjustments finally got thing good could get Did succeed making toad prince Actually what got toad life support lot better some things $700 radio wont cure moral Sometimes should just give up move cant make pig sing annoys pig RC Giant Scale/de Vries Continued page 47 6 its stupefying compendium thing youd want know subject great photographer artist Dave goes well beyond techniques wire-cutting wing cores details foam fuselages floats scale cowls fiberglass spinners built simple-tomake foam forms host foam uses large Sailplanes devotes chapter repair damaged foam wings other model parts Its book well worth studying RC Slope Soaring/Triebes Continued page 49 Sweepback Leading edge less 100 Trailing edge less 50 optimum 00 trailing edge sweephack Jetlike sweepback does en hance looping maneuvers gives pitch sta bility much same dihedral does roll Dihedral Optimum 0-2 0 Jf opt 00 dihedral remember wings will look like droop flight Add 1-2-in block under wing tip joining wing halves wings will look right air course know dihedral amounts over 5 0 will give unacceptabletoo much stability roll want roll baby right Airfoil section cant go too far wrong Eppler 374 RG-15 airfoil new Se hg 5D6060 supposed hot kind en hanced Eppler 374 Before deciding thin out airfoil think about what kind flying site youll using site tight doesnt have much operating space below crest go 9-11 % section thickness thinned airfoils tend mush out lose speed pull tight high-G maneu vers other hand intend operate fast lady big hills big lift build 75% Eppler 374 keep maneuvers big smooth fast airfoil big sky environment Wing area vs wing loading An optimum wing area between 500 550 sq greater wing area greater overall weight must arrive target wing load ing about 15-17 oz per sq ft unballasted Speed directly proportional wing load ing forget about building light Instead build strong very clean avoiding unnecessary weight tail extra ounce 150 Model Aviation WANTED Hands Business Manager REQUIREMENTS IULTIMATESPORT RC 255 East Ashland/PO Baa 727/Sada Springs Ideha 83276 $1995 IDEO REVIEW THE CLOUD DANCERS INTERNATIONAL R/C SHOW TEAM MEET THE WORLD RENOWNED CLOUD DANCERS SEE THE EXCITING FOOTAGE OF THEIR F- 15 EAGLES GIANT SCALE WARBIRDS JUMPERS AND THE FAMOUS FLYING MACHINE MUST FOR YOUR VIDEO COLLECTION! 1 HOUR AND 30 MINUTES OF THE CLOUD DANCERS INACTION FINISHED PRODUCT !FL YING! VOL3 IN-DEPTH KIT AND PRODUCT REVIEWS BUILDING SEGMENTS AND EXCITING FLYING SCENES FEATURING SLIPERLUCKYFLY 2JOE PINKSTON ARF SPORT LOW WING AIRPLANE D & R AIRCRAFTS 115TH P47 INNOVATIVE MODELS MASTER SCALE HURRICANEPICAS NEW 15TH SCALE SPITFIREINNOVATIVE MODELS SAAB GRIPENFORMERLY MIKES MODELS SATELLITE CITYS UFO GLUEALSO ROBINAIRES CUSTOM RETRACT SYSTEM APPROXIMATELY 1 HOUR 45 MINUTES SAVE APPROXIMATELY $30006 WITH MANUFACTURERS DISCOUNT COUPONS INCLUDED IN VOLUME 3 [v32][b-1-10-1-10]] AVAILABLE ONLY FROM RC VIDEO REVIEW MAGAZINE 13360 KINGSBURY DR. WEST PALM BEACH FL 33414 790-3435 EACH TAPE $1995 PLUS $250 SHIPPING AND HANDLING CANADIAN ADD $600 FLORIDA ORDERS ADD 6% SALES TAX VISA AND MASTERCUARCE ALSO AVAILABLE ARE VOLUMES 1 AND 2 KING ORANGE AND JETS OVER DELAND NOW AVAILABLE TED AMOUNT OF YEARLY SUBSCRIPTIONS 5 FOR SIX VOLUMES PLUS S & H tail youll need four ounces nose bal ance Chord taper Avoid tip chords under four inches considering Reynolds Number related chord length Undesirable tip stall ag gravated narrow tip chord and/or high taper ratio Purely rectangular Hershey Bar wing planforms give best stall characteristics look awful slow down roll rate Form follows function wing design Tail area horizontal stabilizer has other function aside providing pitch control aircraft nonsymmetrical wing air foil stabs main purpose counter pitch-down tendency higher speeds Unless decide fully symmetrical wing section youll need stab area least 10% wing area just provide pitch stability high-speed Man turer Hi Perfornia IS aft CULPEPPER LS INC 2526 Washington DubuqueIA 52001 319/583-4130 flight stab area 12-15% desirable pro vide adequate pitch authority during low-speed flight takeoff landing Designing own Slope ship Part Two Slope fliers hear fairly regular basis Jef Raskin Jef member San Francisco Vultures active advocate Slope Aerobatics Vultures few clubs around actually hold Aerobatics contests can hope will change more people become involved flying Aerobatics Jef has written long article about optimal de sign acrobatic Sailplanes includes helpful ideas Sailplane design well set rules Slope Aerobatics contests interested building Sloper will truly . ngine 9015 2cyc Wing Area 1100 sq 1218 Acyc Machine Cut Wood Kit including wire landing gear & wing jaining hdwe VISA & MC accepted $120 Add 500 past & handling Add 300 far COD Ohia residents add 603 tax Far free Catalag send SASE Air Flair15138787487 PO Bax 2075 Fairborn Ohia 45324 acrobatic blast fly slope reading article definitely step right direc tion can write Jef Box 1638 Pacifica CA 94044 Swing-wings A number columns ago took short look concept variable-sweep wms put out request tried corporate feature Slope ship long after received letter photos resident F3B expert Northern California Rich Spicer familiar Richs reputation skills Sailplane de signer pilot trust best around Nova Slope Racer series Syn ergy F3B ships represent state art sport what has say about swingwingsContinued page 155 od timer perfectly proportioned modeling Cuartlss Robin 049 EngInes -Channel RIO 41 Wingspan Electric Power OploneI 82205 K: 003 Very few full scale aircrs5 ideally suited ta mudel tugs tse appealing old Curtius Rubin burn tfte spruce linen age beautifully propurtiafled rsbber electric glow engines Pass fun build treioerllke performauce Flyline ModelS Catalog 505 Psons 17031 2739593 INE MODELS INC PO Box 2136 FaIrfax VIrgInIa 22031 USA April 1990 151 $1995 SEE IT ON VIDEO FROM BOX TO $599 c Nut use Electric Starters Made 6061 Aluminum strong enough allow over tightening weighs under 1 oz 1 diameter 11/4 long 114 radius nose minimum AMA requirement 5/32 Torq Hole 3/4 thread depth can use thinnest props 11 thread sizes fit engines market Send us order & well mail out fast MADE IN THE USA B C PRODUCTS 111 N Starkweather Pampa Texas 79065 806 665-6361 D103210/32 EZOS8O5-8mm U 123212/32 L106106-1mm D07107-1mm L108108-1mm D81258-125mm LI 101210-125mm L114281/4-28 L351625/16-24 LI 38243/8-24 VISA MASTERCARD MONEY ORDERS ACCEPTED DEALER INQUIRES WELCOME Just read articte thought would pass some information about comments n swing-wing Sloper guess nothing really new Back around 1976 built successfully flew swing-wing test concept intent time evolve Unlimited Class Slope Racer Like lot other prototypes after developing far enough successful flight just didnt have time money incen tive whatever pursue next step devel opment tnstead t went back proven design continued Nova series model 42 long swept fully flying V-tail rudder-vator wing mounting sort shoulder mount wings full-forward configuration span about 50 in rear position about 36 main reason geometry change reduce frontal area rather change ra tio thickness chord top view wings fully retracted planform delta wing wing movement powered Futaba landing gear servo fully movable flight Flight stability during wing movement maintained two principles CG vari able wing movement ailerons de flected slightly negative wings rotated rear ward~ work Rich did Sailplane 14 years ago made great strides represents just first step evolution swing-wing Sloper todays high-strength lightweight materials high-tech radios birth ul timate swing-wing Sloper far away Rich undoubtedly busy work Synergy 4 SO will up rest us pursue concept further Swing-wings Part II Just thought Power Scale movement about maxed out some exceptional little Slope ships along comes Bob Reynolds incredible F-14B Super Tomcat Bob started Jet Hangar ducted-fan fuselage added slightly larger fly ing surfaces fuselage / scale fly ing surfaces What results ship 80 long spans 94 about 8 ft Projected weight 7/2 lb results ENYA15 SS2O SS45 19 80 120 FOX 19 45 60 120 HB ALL SIZES HP40 120 others IRVING ALL K&B 19 61 OS10 15 20 21 50 60 120 108 ROSSI ALL 8-1 SUPERTIGER 11 15 19 60 61to90 5-8mm 1/4-28 7-1mm 8-1mm 1/4-28 5/16-24 1/4-28 6-1mm 5/16-24 1/4-28 1/4-28 1/4-28 5-8mm 12/32 6-1mm 1/4-28 5/16-24 3/8-24 25mm 5-8mm 1/4-28 5/16-24 2000 6000 10-125mm SATIO 30 60 6-1mm 65 1090 7-1mm 120 270 8-125mm WEBRA 28 61 1/4-28 BOto90 8-125mm MALONEY 1003/8-24 wing loading 157 oz/sq ft gain lit tle advantage lift department Bob uses Eppler 214 root transitioning Eppler 222 tip youre thinking Bob might working little less full deck hold cause doesnt end Tomcat will have fully operational swing-wings just like real thing Anyone has seen real thing fly can imagine gorgeous Bobs F-14 will look sweeps back its wings during knife-edge pass across face slope Bob planning have beauty TnCities Scale Fun-Fly Just seeing ship fly will worth price admission Mini-I Kam-U Another small model companies has sprung up increase Slope Soarings popularity K&A Models owned operated Ken Williams ga rage shop companies make up core kit pro ducers Kens kits great examples high-quality products being turned out two kits Ken producing now Mini-I Kam-U Mini-I has 285-in wingspan area 1674 sq flying weight 95 10 oz kit includes machine-cut plywood balsa parts foam core wings plans instructions complete hardware package Mini-I re quires mini two-channel radio system de signed advanced flier Despite its small size light weight Mini-I needs quite bit wind fly Ken noted plane designed advanced flier definitely true Its small size quickness require pilot steady thumbs good eyes experienced Sloper yearning quick acrobatic ship small slopes Mini-I might just what look ing Kam-U designed intermedi ate flier mind wingspan makes very stable plane yet Kam-U incapable perform ing Aerobatics well specifications 50-in wingspan area 2875 sq flying weight 195 20 ounces kit Mini-t very complete good quality Kam-U designed use standard two-channel radio Continued page 156 THIRTY-SIXTH ANNUAL RADIO CONTROL EXPOSITION APRIL 6 7 8 1990 FRIDAY9amto6pm SATURDAY9amto6pm SUNDAY9 am 430 pm TOLEDO SPORTS ARENA ONE MAIN STREET TOLEDO OHIO TICKETS can purchased door ADVANCE sending self-addressed stamped business size 41/aX9 envelope TICKETS 38235 Castle Romulus Ml 48174 orders above 10 tickets must include double postage US orders must include 25 cents per order handling charge foreign orders must include 50 cents per order handling charge need send addressed envelope will provide necessary postage NOTE Registered Express Type Mail Orders Will Accepted! Include check money order US funds made payable Weak Signals R/C Club Ticket prices $400 per day adults $100 per day children 12 under Please specify number Deadline ticket orders March 30 1990 sales final non-refundable Hotel info map area may obtained sending stamped self-addressed envelope ticket address above Any other Exposition information avail able contacting Wayne Yeager co director ticket address phone 313941-6661 We WillHave TraditionalSwap Shop Saturday Night Auction COMPETITION CLASSES NON-MILITARY SPORT SCALE PLANE AMA RulesI MILITARY SPORT SCALE PLANE IAMA Rules PRECISION SCALE PLANE IAMA RulesI PATTERN PLANE f No Jetaf SPORT MONO-PLANE fnon-scale models SPORT BI-PLANE non-scale models OLD TIMER FREE FLIGHT R/C ASSIST R/C SAILPLANE non-scale models f No Engines HELICOPTER R/C CAR COMPETITION BOAT MILITARY SCALE BOAT PLEASURE POWER BOAT WORKING VESSEL-UNARMED presented Weak Signals R/C Club Toledo Ohio uuW April 1990 155 acranarit A- aaynawx MINI-JET SERIES pl3nes feature balsa construction Designed intermediate flyer mind will accept 25 32 size engine use rear exbaust engine exceptional perfomance Get thrill jet hassles ducted fan New Airfoil Version Fixed Gear Retractablcs New Midi jet 40 45 size Airfoil ror Rctractablea New Mini-Mini Jet 049 10 size Airfoil Retracts Mini Mini Jets Mini Jets ktidi-JetE stoee 0 W8i Canopy $1500$6000Re#act $5000 Sid $2000 Wi Canopy $2000d4 $2600 Wifi Catopy Pitie shipped Post paid xnait tuta Pleuc add $4tXl shipping tundling Parrish Aircrait & Scale Models 52S SW 49th Tet Phntation Fl 33317305 581 4477 Both kits went together quickiy easily should pose no problems intermediate builder would like try out planes yourself check local hobby shop contact Ken directly K&A Models Unlim ited 5990 California Ave Long Beach CA 90805 Dont forget about International Soaring RC Scale Fun Fly Tn-Cities WA coming up May 25-27 still plenty time register annual event can get alt info Wil Byers 632 Meadows Drive East Richland WA 99352 phone 1-509/627-5224 RC Electrics/Kopski Continued page 51 Romey Bukolt man behind Concept Mod els about year ago called discuss plans develop Fleet Electric Romey spe cializes Fleets Concept Models has prod uct line wet-powered ones various sizes chatted also referred him Keith Shaw very same bearded gentleman mentioned above Electric Practitioner Su preme Ann Arbor MI seeI said wasnt Santa Some months went got set plans Romey look over mark up did Keith did too few weeks ago got photo shown herein Concept Models pro totype 40 -powered Fleet can tell kit works dont have price availability info time can get particulars Concept 2906 Grandview Blvd Madison WI 53713 Electric Scale getting very popular kit will add considerably trend brings around Astro time recent conversation Bob Boucher told hes repackaging ever-popular Astro Por terfield attractive new box also hes including gear-drive 25 giant step sense now used seeing 05s packaged ever-expanding number Electrics 25 represents whole new level trend Personally think move going very successful Porterfield has con tinuous production ever since about 1978/79 very successful model air Since has get suitable power system fly way get plane-withmotor idea popularized Goldberg Elec tra several years ago has proven very successful marketing idea witness numbers kits-with-motors now market see no reason new Porserfield wont en joy success kind Some errors crept some offerings January issue MA Id like offer some corrections First off Skyvolt article centermost photo page 32 illustrates landing gear tachment caption mentions fiberglass matting text page 143 mentions iron-on cloth reinforcement latter correct have no idea former came theres trace fiberglass either Skyvolt shop Santa Naa Editing Elves Maybe As aside guess should explain some spirit Column coming fromIm writing December 25 1989 Let expand last comtttents bit have using iron-on cloth reinforcement modeling over two decades find GUIDE TO OVER 400 AIRCRAFT MUSEUMS CROSS REFERENCE BY AIRCRAFT SEND $700 postage included TO MICHAEL SLAUGHER See MA 6-89 P110 124 E Foster Parkway Fort Wayne IN 46806-1730 1-219-744-1020 Southwest RC Flying Year round flight school Five day course $350 Learn fLy planes Send SASE complete info to 2818 Carolina NE Albuquerque NM 87110 505 881-3799 extremely easy use very effective Wont work well fiberglass eases com pound curved areas does great job places use white Bondex brand manufactured Wrights Stock #230 002 costs about $1 6/2 x 14-in piece Bondex readily avail able sewing variety stores intended clothing patch material Isis basically cloth material heat-activated adhesive side flows about Wool setting typical household clothes iron use simply cut material outline size put place want cover pa per towel bring hot iron bear towel following time instructions supplied product paper used prevent adhesive soaks its side cloth way through goo-ing up iron glue sticks like crazy balsa ply cloth cools youve got tough sembly Anyway always install such cloth reinforcements first part covering job cant speak materials, find MonoKote goes over cloth nicely case Skyvolt used piece ma terial measuring about 3 x 4/ wrapped around ply landing gear mounting plate extends up sides fuselage about % As installation aid first adhered ply plate two flaps intended go up sides held out heats way fu selage sides masking tape latter re moved course before heat applied side pieces way used hold wet-powered firewalls place same waybut Ive grown out stage now second instance glitches KRC meet article erroneously referred Bill Winters Le Crate design Heron made its appearance meet earlier years Two other minor errors also found wy article opening paragraph page 87 gives participation 110 118a bit larger last years 113 despite rain am making fine point Because size get sing very important As discussed arti cle meet growth field size closing other KRC presently considering alter natives accommodate situation statement page 188 came out plane designed meet QSPRA Formula 120 rules 1/4 scale model accepts 60120 ci engines Features Epoxy glass fuselage foam wing contnsction Dural landing gear scale landing gear dd $1500 lufl kit S175O0 ad han IMPORTED DIESELS A-MAurorabcEDMyygJi.Ah PAWfaplln 8tandrd & R/C.OIg4g Aero Marine VIntag.Sporg & Conteat Send ioo informatlom ICARLSON ENGINE IMPORTS IPhoenI AZ