Dr. D B Mathews FUN EXPLOSION Golly what great year 1992 fly-ins least sure area Out curiosity just looked through mileage records attended 14 events 23-week span between May 9 October 18 within four-hour drive home did attend three other events because obvious wind going too strong events noncompetitive course Anyone also attended SAM Quickie 500 pattern competitions area would have road weekend Never memory have seen anything like fly-ins held over country weekend attendance exploding As matter fact several activities have outgrown available flying facilities IMAA event drew models pit area overfilled necessitating double rowing parked models Several flyins swamped local volunteers badly people members club pitch flight line inspection frequency control chores Im sure what causing explosion noncompetitive flyins sure delight see folks having really good time arent fly-ins give some serious thought next flying season arent going judged anything smile come Fly Fun What Naturally mail often contains contest etc announcements Id like promote thats obviously impossible However once pushes humor button Let share outlandish announces second annual Cuckoo Challenge Lo behold isnt some flight copywriters fancy actually Cuckoo Virginia happy folks held combination AMA- SAM-rules smallfield free flight event August 22-23 1992 Refreshments served Paupers Ridge snack bar am making up second important thing Almost everyone agrees first supplemental device needed after purchasing basic radio system expanded-scale volt meter ESV suggest second most-needed device fast field cbarger FFC gadget can remain flying field recharge radios batteries car battery used starter Most us around use Ace R/C unit since has sensor detects full charge shifts trickle mode other brands Im sure Incidentally avoid units used RC cars voltage amp cutoffs matched model-flying parameters An FFC helps avoid disaster caused classic meters red can get flight syndrome also prevents forgot charge up after last week error make occasionally device just flat-dabbed indispensable us As matter fact 1 give up either ESV FEC Id choose give up ESV gyros Remember RC gyrocopter photos information included Flying Fun year ago got started some information material supplied Charles Beck built using plans supplied him friend Australia first sent copies drawings interested readers learned kit produced England DB Models wishing steal something owner David Boddington started advising readers correct source England Boddington did answer inquiries 56 Model Aviation u FrF 909 N Maize Road Townhouse 734 Wichita KS 76212 John Walkers stock kit wniz 40 powered K&B 45 Sportster model will fly slower walking speed yet its capable consecutive snap rolls full throttle columnists Micropro transmitter full-scale Anderson Greenwood Doc says looks like nice subject modeling Rubber Ducky antenna now Note dihedral good gear location Paul Matt three-views available available replacement unit have unable verify whether DB Models still exists appeared put whole situation limbo Now along comes Peter H Johnson Walton Hills Ohio information will make possible others build fly wayout-of-the-mt models Peter has discovered Gyrace later design Boddington published construction article RCM&E some years ago drawings available Bob Holman Plans see ad issue plan number RC 1553 youre consider ordering Model Aircraft Plan Book illustrates hundreds free flight control line RC construction plans have published England over years Johnson says model will loop roll hover fly backward breeze 25-in rotors 26-in centers 50 negative pitch Power 05 25 FSR Frankly Gyrace attractive DB Models gyro anyway build Looks like true Flying Fun project Now tell As previously related column spent huge amount time developing trainer Ace RIC stumbled about trying several airfoil variations etc finally concluded moderately thick semisymmetrical airfoil superior traditional flat-bottom section calmest wind conditions As often case discovery original just thought Ted Off Ventura California recently sent copies series columns written way back 1981 RCM&E England Peter Russell life certainly would have simpler seen Russells material Above Astro Flight 90 motor installed Big Bingo swings 16 x 8 prop 8 10 minutes 32-cell 2500-mAh battery pack Left Completed model covered Coverites 21st Century Fabric Lightweight fiberglass gear replaced kits heavy-duty aluminum unit before beginning trainer project familiar Peter Russell considered preeminent authority modeling matters England English-speaking world essentially Bill Winter Ken Willard Europe Im going quote sections columns Russell wrote September 1981 December 1981 May 1982 issues RCM&E have done lot experimenting matching aerofoils aeroplanes have come conclusion plain straightforward symmetrical wing between 10 15% thickness located about 35% chord takes lot beating practically powered model aircraft March 1993 57 Top Left Bob Benjamins Electric Big Bingo uncovered kits ruggedness enabled Bob safely lighten structure Continued page 134 Peter Johnsons Gyrace RCM&E plan #1553 available E4. 0 howell New Jersey eniargea iiannan iringies through Bob Holman Plans Powered OS 25 FSR Wonder 13-in span Ed calls model Wired Wonder Its model will loop roll hover fly backwards breeze powered tiny Ken Basset geared electric motor unit Wegner D L Wehrly Herb Weinberg David M Weir Harvey E Welsh John E Werner Frank H West Larry 0 Wewer Dennis D Wheaton Kenith R Wheeler Roger Wheeler Charles D Whitcomb Donald E White Thomas White Rowland S Whiteman Paul E Wible Ray M Wickham Kirk R Wicklund G B Wikiund Everett Wilkins Hugh W Wilkinson Francis Williams Rex Williams Capt Dale Willoughby Usmc David E Wilson John D Windmiller Juergens 0 Winkler Ross H Wise James W Witte Donald J Wiwczar Edward N Wolf Robert R Wolfarth George L Wolfe Irving Wolk Irving Wolk Irving Wolk Todd J Wolt James E Womack Lester Woodin Alfred C Woodward Norman E Worsley II Wilma Wright Leon H Wysong Palmer L Yale John J Yankura Ronald W Yawn F R Yoho Alwin Yoshimoto Jack Young Jack D Young Ted J Young Bradley F Yuhas Robert J Zent Randy J Zezulka Donald A Ziemer Shane F Zikmund Stanley T Zimmerman Bill Zimmermann Robert F Ziotkowski ng FunlMathews Continued page 57 say because symmetrical section although lifting capability less cambered section drag pitching moment due angle attack variation later point makes particularly suitable trainers traditional flat-bottom section used trainers since year dot gives very little improvement lift Most flat-bottom sections will also pitch sensitive tending produce twitchy model would normal symmetrical section well-rounded nose Now didnt make suggestion spur moment capacity chief test pilot flying instructor modelers part world falls visaBJrn/c ELECTRONICS rif-izrk XXS SERVOS etc FOR OLDER RADIO UPDATES WE HAVE OVER 26 YEARS EXPERIENCE IN &C AT WE 1466 windward dr mason ohio 45040 ph 513 398-5423 lot fly kind model can imagine trainers imagine last few years have flown just about kind trainer known man seem pretty easy often wonder anywhere near ideal purpose intendedthat teaching complete beginners fly Several years ago several us got together see couldnt make better trainer basic layout trainers good though lot feature short nose makes difficult get CC center-of-gravity far enough forward Since trainers have near-universal wing about 54-inch span 8-inch chord addition two wings made flat bottomed 12% symmetrical also able try wings borrowed number proprietary trainers results subsequent test-flying proved conclusively model symmetrical wing section handled better others difference flying stalling speed between flat-bottom sections symmetrical ones quite immeasurable much pilots test programme unable say just flying model straight level wing flying Only after tossing about bit able make accurate guesses likely based handling rather speed flat-bottomed constant chord wing about 61 aspect ratio no washout can very nasty rearward CC symmetrical section wing same dimensions gives superior handling Incidentally yet another point favor advocacy symmetrical wing sections sport trainer models might have overlooked symmetrical section has center-of-pressure travel moves little varying angles attack whereas typical flat bottom section nearly universal type model will have center-ofpressure location varies between 70% chord 20 nose up 27% approaches stall So itself creates destabilising effect will make CC location critical comparison figures symmetrical nearly symmetrical plot airfoils dot matrix printer wIth FOILED_AGAIN! PLOT AIRFOILS IN ANY CHORD UP TO 24 INCHES MODIFY THICKNESS CAMBER & TRAILING EDGE PLOT SKIN THICKNESS FOR SHEETED WINGS ENTER DATA EASILY VIA INTELLIGENr EDITOR USER-FRIENDLY MENU-DRIVEN OPERATION INCLUDES 50 AIRFOIL FILES 26-PAGE USER MANUAL CA nhldeirO $45oo 05. oders pits mc Idrntiofi brk riflO US$55 lbqdres OMPCfliTAT copUibie romtr sod dot 855 pourS. Give SOpsSsr p55. 5758 8068 odtS sperifr SiS 33 diSks 5855 chck o wsq cod So CYGNET Software619 792-8021 3525 Del Mar Heights #237b San Diego 92130 134 Model Aviation PING & HANDLING ups Ground Continental us $495 ups Air & Parcel Post $495 plus 10% Subtotal Continental us ups Next Day Air $t400 plus $100 per lb Shipment total COD add $395 Foreign Orders Parcel Post Air $495 Subtotal u S Mail $4 95 plus 10% Subtotal mm mm OUTSIDE Ci section would about 32% 00 nose up approaching stall maximum variation 230 other words center pressure shift 9% chord compared 43% flat-bottomed wing section wish Id known experiments conclusions can add messing about also clearly illustrates much better pitch stability tracking wind symmetrical section used high-wing lightly loaded low-powered model airplane Unfortunately because prejudiced attitude favors flat-bottomed sections trainers experts unable give concept fair try truly rather sad since experts have mentally relegated outstanding trainer secondairplane sport-flier role building designed writer reduced dihedral another lowered wing incidence review models Back doing product reviews magazines Art Schroeder editor MAN years gave excellent piece advice Art told reader review interested would have designed kit wants know kit builds flies designed write up own personal modifications manufacturers product youre doing review youre doing construction article Bob Benjamins Big Bingo Higginsville June Float Fly call came Washingtonian Bob Benjamin expressing interest setting up Big Bingo prototype Astro Flite 90 electric motor asked talk Bob about perceptions concerning project very delightful conversation ensued Frankly initial reaction Youve got kidding after talking Bob learning bit project sounded less less far out Bobs knowledge electric flying well documented quickly concluded anyone could successfully set up electric power model size fellow Essentially needed reduce bare airframe weight about additional UNIVERSAL STRAP ON P OldV enginOs wmout mLJfflef DoltS 29-45 iT- 40P 52195 51-61 JT-ROP 52395 MOSS U 51 CSo p 25 50 51-61 $2496 MAIL ORDER Please add $250 UPS shipping Check MO Visa MC COD accepted Add $400 extra COO California residents add 8% sales tax weight needed 32-cell 2500-mAh battery pack informed electric motor weighed less 120 stroker its fuel concluded substituting balsa wing leading edge tail feathers using Klett fiberglass landing gear found Ace R/C 4-120 kit elim inating some light ply kits fuselage forward areas no vibration control problems electric Big Bingo could built within required weight parameters give some power comparison numbers between Astro 90 usual four-cycle 120 wet power plant Bob found electric unit would turn 16 x 8 prop 7000 rpm drawing 30 amps As know terribly far sort numbers reads 120 stroker Benjamin has written about project interesting article recent issue Model Builder magazine heartily recommend 32-cell 2500-mAh battery pack Big Bingo weighs 18 poundsabout four usual Big Bingo Using reworked 18 x 6 prop overall thinning cutting slight undercamber airplane breaks ground after run about 100 feet none-too-smooth grass field Bob says though Big Bingo doesnt fly particularly fast will climb surprisingly well determined possible maintain 300 climb angle takeoff maintain long desired Rolls slow positive Loops slow solid stall turns quite crisp Low-speed handling no problem extra weight moderately high wing loading make Electric Bingo pleasure fly land wind 2500 pack flight duration order seven eight minutes Bob has certainly proven feasibility electric power large models would think large designs specifically tailored lowered vibration levels electric power viable solution fly areas noise problem Congratulations Bob opening up exciting new way Fly Fun other hand Longtime pen pal Dick Gibbs has extolling fun found 10-A-il P 1sr40 JT-M1051 rnsx 11-51590 1551255 iT-MU 100 lrwlzor ASP 111552995 POt 742995 MAO 9110020911 MAX scsi3491 51 l551.902991 55 253000-1531 MOKI 111iSO CEIIRA 12021191 irn 4511 AU m March 1993 135 Pitts-Style Mufflers UNIVERSAL BOLT ON Foe SIde motilsed engInes Will fIt 90% engInes made attN 1989 Easy atd-l Just bolt muMMer 50 nglne WIth factory muffler bolts xr bolts supolied wIth muffler 29 JT 40P8 45 $22 95iT 6OPR Exhaust extensIons worm drIve arid moIziting waD - Induded What works foam WIRE uar4un BENDS AND FORMS WiRE AND STRIPS OF METAL IN ANGLES CURVES LOOPS ETC No WB100 $400 SUUARE PUNCH SEt CUTS SQUARES AND SLOTS SET INCLUDES SIZES 1/B 3/16 1/4 5/163/5 MADE FROM NICKEL PLATED STEEL No SPS5 $1200 BRUSHES 3 PCS MINLATURE WIRE BRUSH BET ONE EACH BRASS NYLON STAINLESS MWB3 $300 T-PINS 1 1/4 100 PACK TP1 4 $200 ZONA SAWS iSO42 TEETH 3145230 20032 TEETH 3/4230 250MTTRE BOX250 450 LONG & SHORT BLADE 260 500 1 1/4 WIDE 270 BOO ZONA HAKA JUNIOR HACKSAW 165 DRILL SETS FIRST OUAUTY HIGH SPEED STEEL ALL SETS SUPPUED IN CASE 2S1ES-1/1B301/4 sIlSP14 400 2S100A 102 01-0055 MOST POPULAR D5153No 11060 B0pcSS1BBO 05154-NoBi I060I2OpC-1200 NEEDLE FILE SET 51/2- 12SHAPES PLASTIC HANDLE WITh EACH FILE GREAT ON WOOD PLASTIC METAL No NFSI01 -$500 INDUSTRIAL OUALITY X-TRA HEAVY DUTY 12 SHAPE 4 LONG $650 NG $600 DREMEL 3950 TOP OP THE LINE MOTO POWER TOOL SET INCLUDES 40 ACCESSORIES AND CASE No 3950 $7000 VRUSHE MADE IN USA 13/PACK NoEB12- $100 Doz No EB144 -$700 Gross PIN VISE STAINLESS STEEL-S TO 1/B CAP PV4 4-LONG-$4oo PV6 B LONG 600 PV1O-10-LONG- 800 FY15 -15- LONG -1000 PV614- 0 1/4 Capacity $600 TUBE CUTTER 1/5 TO S/B CAPACITY HEAVY DUTY MADE PROM SEMI-STEEL No TC58 -$400 HOBBY KNIFE BLADES No11 MADE IN USA 105 PACK NoHKBl 1- $650 SINGLE EDGE BLADES MADE IN USA FIRST OUAUTY NO9100 PACK NoSEB1O2 $450 HEAVY DUTY NO11 FIRST OUALITY 100 PACK .a SEBlOl ouu Z PLIERS MAKES PERFECT Z BENDS WITH SOUEEZE NoZPL $1650 LONG DRILLS FIRST OUALITY- HIGH SPEED STEEL1/16 1/8 12 LONG18 LONG5132 3/1 6 1/4 LG1 1/16 $450 LG6 3/16 $1500 .d 1/6450LG7 7/32 1500 I12 LONG LG3 5/32450LGS 1/4 1500 4 3/16450 LGS 1/4550 CUTrING MATS HEALS ITSELF AFTER EACH CUT AND SURFACE STAYS SMOOTH NONGLARE GREEN FINISH CUT ON BOTH SIDES CM8 9 x 12 $1000 CM12 12 x 18 1500 HELPING HAND FIRST OUALITY THREE ARMS 2 ARMS WITH ALLIGATOR CLIPS 1 ARM WITH 25 GLASS 2 1/2 MAGNIFIER HH1 -$700 NORTH WESTERN CHOP SAW MA5S PERFECT MITRE CUTS 50 45 N WOOD OR PLASTIC JSES SINGLE EDGE BLADE STOP NCS -1450 T-BAR srhLJn ALUMINUM MADE IN USA Til 11LONG $230 T22 22 LONG $350 SANDPAPER RUFFTUFF ADHESIVE SACK $1OSE& ISPECIFYFINEIRSFI MEDIUM IRSM OP COAPEF IRSCl ELECTRONIC CALIPER 1ST INDUSTRIAL OUALITY READS IN INCHES AND METRIC 0-6-0- 155MM EC6 $5500 DiAL-CALIPER _____________________WHEN ORDERINU 1ST INDUSTRIAL QUALITY P RD ADD $300 0-6 100 SINGLE REVOLUTION EASTERN TOOL&SUPPLYCO COD ADD$750 GRAD IN 001 149 GRAND STREET NEW YORK NY 10013 ORDERS 212-925-1006 SASH CHROME FINISH WRITE FOR CATALOG $3 00- OR FREE WITH ORDER CE 212-226-3749 ITH FITTED CASE FAX 212-925-1010DC6 $2100 COMET LING ELAND VICTOR STANZEL EST ER MBECKER VK 2 00 0 4 CO UJ UJ IS 0 Iw B 00 0 00 LU I- z UJ LU 00 0 K LU 00 LU Co 0 z 0 C 23 2 Co C 23 C 2 Co 0 0 C 0 z CS 0 0 2 -4 m C 23 o Co 0 C m C 23 2 0 -I m C C BAY RIDGE NTIFIC LESS L ICAN JUNIOR ONE T CARMEL T PLANES Composites rglass experts video shows describes easy use composites construct basic lamination 1993 catalog included $5-off coupon towards first order Approximately 60 minutes Only $2495 plus $450 shipping handling ____ e Development 800 821 tiny electric free flight models bimonthly Flying Models column years increasing availability very small electric power plants responsiblenot mention appealing simplicity no gumbands CO2 cartridges Ed Toner Howell New Jersey has bitten little electric bug sent photos enlarged Bill Hannans Stringless Wonder Power tiny Ken Basset geared electric unit Ed calls model Wired Wonder Charging done ELF-Flyer Charger handy little hand-held device holds four C cells Ed doesnt use charging jack switch just uses small alligator clips directly protruding copper points motor 50-second charge yields 100-second runs full power plus 20 seconds decreas ing transitional power Eight times between two three minutes dead air previous attempt design failure Ed used original Hannan 10-inch version small Comet plastic prop says thing zipped along really high speeds wouldnt climb new version uses 60 downthrust original Ed speculates geared Basset unit would fly Bostonian rubber design authority leads suggest use tiny Units indoor models Wouldnt barrel fun9 Darts stuff As may recall got lost topic CulverlDriggs Dart full-scale aircraft several months ago case readers have interest Driggs Dart super set two-inchto-the-foot three-view-type drawings available B2 Streamlines PO Box 976 Olalla WA 98359 model construction drawings superbly detailed full-scale aircraft suitable adding details existing model same firm has long list exciting unusual gliders such construction plan form Write B2 Streamlines catalog Along Culver Dart trail Fran Ptaszkiewicz deBolt Bipe included Octobers Flying Fun sent along photo Culver Dart spotted Niagara Falls Air Show 1982 also sent along Anderson Greenwood photo since plane next Dart As likely know superb Paul Matt three-views Anderson available hasnt someone modeled really different eminently buildable prototype have availability fiberglass fuselage would present few challenges thing sure looks like good RC free flight subject Some new stuff short little flexible rubber antenna shown transmitter prototype Ace RIC Ive using since May 1992 other pilots have 136 Model Aviation berg. Walker. Taibi. deBolt recognize names youre gonna love DO YOU SPEAK MODEL AIRPLANE Its Dave Thomburgs conctse witty history U S aeromodeling twin pusher ugliest Stik its volume heroes models clubs kitmakers laid groundwork todays hobby-sport Order copy now Money back bores 2 320 pages paperback $1995 ACE SIG dealer postpaid Pony X Press 5 Monticello Drive Albuquerque NM 87123 Phone 505 299-8749 Cash Check MO Visa-Mastercard Still available Thornburgs OLD BUZZARDS SOARING BOOK 5 pp testing longer Ive flown about conceivable environment often four other models air same timewithout single problem As guy crashed Big Bingo transmitter antenna broke off flightnot mention time stuck regular antenna pusher propI can really appreciate unit Additionally unless fly knees theres no way drag ground Rubber Ducky antenna available replacement unit Ace transmitters perhaps other brands Contact factory information Its amazing often Ive other fliers PA announcers get excited think Im flying antenna retracted Myron Pickard Fiberglass Master see ad issue now has accessory cowl available Big Bingo unit designed enclose inverted Zenoab Quadra gas burner tapers 3/2- spinner Looks really neat Finally fly-ins perfect flying weather have caused get seriously behind correspondence stack make effort answer letters include SASEsooner later Unfortunately year its later Ill get done As always need send photos unusual model aircraft subject should exclusive magazine mean anything ModelldeBolt Continued page 53 yet find way improve process doing will also come understand what makes tick should see flight performance goal twofold First stay up long possible technically have lowest rate sinkor best model liftto-drag [LID] ratio Second maximum duration model must climb fast steeply possible gain maximum altitude during limited power run best rate climb standpoint aerodynamics involved two goals opposites thus requiring careful consideration can achieve both goals simultaneously can hope complementary factors can used ultimate design compromises will detract greatly either goal cant have cake eat too lowest sink rate comes greatest amount lift However lift production equates drag drag major adversary rate climb So have immediate need compromise best answer could get much lift possible sources would increase drag least new force arrangement will follow such path UNLEASH POWER WITHIN h DIESELIZE its AWESOME Bigger Engine Won t Fit MORE POWER Typical 45 Will Turn 13-6 Over 10000 Get 3 Mm Oz & Idle Well Below 2000 BIGGER PROPS COOL RUNNING LESS NOISE NO GLOWPLUGS LOW IDLE Largest Producer Model Diesel Fuels Call 203 877-1670 send 75 stamped #10 SASE & $200 Davis Diesel Development ox 141 ord CT 06460 World Leader Model Diesel Technology Since 1975 ll Today Dealer Inquiries Welcome models available weigh both gins cc ozs High accuracy guaranteed tare have strain gage transducers Whether build indoor models big birds between have scale Send #10 SASE brochure Discount prices $9900 up $24750 Includes AC adaptor UPS 1 yr warrantee Champion Model Products 880 Carmen Court La Verne CA 91750 909 599-3348 March 1993 137 Ask Original ffI LUflcfleI Pit CrwTM VWSWADAkOAWI nchr CuI 5EiEih Lancelot Ft Impa WA OBEiC j fO5] 785-8451 foam ask.
Edition: Model Aviation - 1993/03
Page Numbers: 56, 57, 134, 135, 136, 137
Dr. D B Mathews FUN EXPLOSION Golly what great year 1992 fly-ins least sure area Out curiosity just looked through mileage records attended 14 events 23-week span between May 9 October 18 within four-hour drive home did attend three other events because obvious wind going too strong events noncompetitive course Anyone also attended SAM Quickie 500 pattern competitions area would have road weekend Never memory have seen anything like fly-ins held over country weekend attendance exploding As matter fact several activities have outgrown available flying facilities IMAA event drew models pit area overfilled necessitating double rowing parked models Several flyins swamped local volunteers badly people members club pitch flight line inspection frequency control chores Im sure what causing explosion noncompetitive flyins sure delight see folks having really good time arent fly-ins give some serious thought next flying season arent going judged anything smile come Fly Fun What Naturally mail often contains contest etc announcements Id like promote thats obviously impossible However once pushes humor button Let share outlandish announces second annual Cuckoo Challenge Lo behold isnt some flight copywriters fancy actually Cuckoo Virginia happy folks held combination AMA- SAM-rules smallfield free flight event August 22-23 1992 Refreshments served Paupers Ridge snack bar am making up second important thing Almost everyone agrees first supplemental device needed after purchasing basic radio system expanded-scale volt meter ESV suggest second most-needed device fast field cbarger FFC gadget can remain flying field recharge radios batteries car battery used starter Most us around use Ace R/C unit since has sensor detects full charge shifts trickle mode other brands Im sure Incidentally avoid units used RC cars voltage amp cutoffs matched model-flying parameters An FFC helps avoid disaster caused classic meters red can get flight syndrome also prevents forgot charge up after last week error make occasionally device just flat-dabbed indispensable us As matter fact 1 give up either ESV FEC Id choose give up ESV gyros Remember RC gyrocopter photos information included Flying Fun year ago got started some information material supplied Charles Beck built using plans supplied him friend Australia first sent copies drawings interested readers learned kit produced England DB Models wishing steal something owner David Boddington started advising readers correct source England Boddington did answer inquiries 56 Model Aviation u FrF 909 N Maize Road Townhouse 734 Wichita KS 76212 John Walkers stock kit wniz 40 powered K&B 45 Sportster model will fly slower walking speed yet its capable consecutive snap rolls full throttle columnists Micropro transmitter full-scale Anderson Greenwood Doc says looks like nice subject modeling Rubber Ducky antenna now Note dihedral good gear location Paul Matt three-views available available replacement unit have unable verify whether DB Models still exists appeared put whole situation limbo Now along comes Peter H Johnson Walton Hills Ohio information will make possible others build fly wayout-of-the-mt models Peter has discovered Gyrace later design Boddington published construction article RCM&E some years ago drawings available Bob Holman Plans see ad issue plan number RC 1553 youre consider ordering Model Aircraft Plan Book illustrates hundreds free flight control line RC construction plans have published England over years Johnson says model will loop roll hover fly backward breeze 25-in rotors 26-in centers 50 negative pitch Power 05 25 FSR Frankly Gyrace attractive DB Models gyro anyway build Looks like true Flying Fun project Now tell As previously related column spent huge amount time developing trainer Ace RIC stumbled about trying several airfoil variations etc finally concluded moderately thick semisymmetrical airfoil superior traditional flat-bottom section calmest wind conditions As often case discovery original just thought Ted Off Ventura California recently sent copies series columns written way back 1981 RCM&E England Peter Russell life certainly would have simpler seen Russells material Above Astro Flight 90 motor installed Big Bingo swings 16 x 8 prop 8 10 minutes 32-cell 2500-mAh battery pack Left Completed model covered Coverites 21st Century Fabric Lightweight fiberglass gear replaced kits heavy-duty aluminum unit before beginning trainer project familiar Peter Russell considered preeminent authority modeling matters England English-speaking world essentially Bill Winter Ken Willard Europe Im going quote sections columns Russell wrote September 1981 December 1981 May 1982 issues RCM&E have done lot experimenting matching aerofoils aeroplanes have come conclusion plain straightforward symmetrical wing between 10 15% thickness located about 35% chord takes lot beating practically powered model aircraft March 1993 57 Top Left Bob Benjamins Electric Big Bingo uncovered kits ruggedness enabled Bob safely lighten structure Continued page 134 Peter Johnsons Gyrace RCM&E plan #1553 available E4. 0 howell New Jersey eniargea iiannan iringies through Bob Holman Plans Powered OS 25 FSR Wonder 13-in span Ed calls model Wired Wonder Its model will loop roll hover fly backwards breeze powered tiny Ken Basset geared electric motor unit Wegner D L Wehrly Herb Weinberg David M Weir Harvey E Welsh John E Werner Frank H West Larry 0 Wewer Dennis D Wheaton Kenith R Wheeler Roger Wheeler Charles D Whitcomb Donald E White Thomas White Rowland S Whiteman Paul E Wible Ray M Wickham Kirk R Wicklund G B Wikiund Everett Wilkins Hugh W Wilkinson Francis Williams Rex Williams Capt Dale Willoughby Usmc David E Wilson John D Windmiller Juergens 0 Winkler Ross H Wise James W Witte Donald J Wiwczar Edward N Wolf Robert R Wolfarth George L Wolfe Irving Wolk Irving Wolk Irving Wolk Todd J Wolt James E Womack Lester Woodin Alfred C Woodward Norman E Worsley II Wilma Wright Leon H Wysong Palmer L Yale John J Yankura Ronald W Yawn F R Yoho Alwin Yoshimoto Jack Young Jack D Young Ted J Young Bradley F Yuhas Robert J Zent Randy J Zezulka Donald A Ziemer Shane F Zikmund Stanley T Zimmerman Bill Zimmermann Robert F Ziotkowski ng FunlMathews Continued page 57 say because symmetrical section although lifting capability less cambered section drag pitching moment due angle attack variation later point makes particularly suitable trainers traditional flat-bottom section used trainers since year dot gives very little improvement lift Most flat-bottom sections will also pitch sensitive tending produce twitchy model would normal symmetrical section well-rounded nose Now didnt make suggestion spur moment capacity chief test pilot flying instructor modelers part world falls visaBJrn/c ELECTRONICS rif-izrk XXS SERVOS etc FOR OLDER RADIO UPDATES WE HAVE OVER 26 YEARS EXPERIENCE IN &C AT WE 1466 windward dr mason ohio 45040 ph 513 398-5423 lot fly kind model can imagine trainers imagine last few years have flown just about kind trainer known man seem pretty easy often wonder anywhere near ideal purpose intendedthat teaching complete beginners fly Several years ago several us got together see couldnt make better trainer basic layout trainers good though lot feature short nose makes difficult get CC center-of-gravity far enough forward Since trainers have near-universal wing about 54-inch span 8-inch chord addition two wings made flat bottomed 12% symmetrical also able try wings borrowed number proprietary trainers results subsequent test-flying proved conclusively model symmetrical wing section handled better others difference flying stalling speed between flat-bottom sections symmetrical ones quite immeasurable much pilots test programme unable say just flying model straight level wing flying Only after tossing about bit able make accurate guesses likely based handling rather speed flat-bottomed constant chord wing about 61 aspect ratio no washout can very nasty rearward CC symmetrical section wing same dimensions gives superior handling Incidentally yet another point favor advocacy symmetrical wing sections sport trainer models might have overlooked symmetrical section has center-of-pressure travel moves little varying angles attack whereas typical flat bottom section nearly universal type model will have center-ofpressure location varies between 70% chord 20 nose up 27% approaches stall So itself creates destabilising effect will make CC location critical comparison figures symmetrical nearly symmetrical plot airfoils dot matrix printer wIth FOILED_AGAIN! PLOT AIRFOILS IN ANY CHORD UP TO 24 INCHES MODIFY THICKNESS CAMBER & TRAILING EDGE PLOT SKIN THICKNESS FOR SHEETED WINGS ENTER DATA EASILY VIA INTELLIGENr EDITOR USER-FRIENDLY MENU-DRIVEN OPERATION INCLUDES 50 AIRFOIL FILES 26-PAGE USER MANUAL CA nhldeirO $45oo 05. oders pits mc Idrntiofi brk riflO US$55 lbqdres OMPCfliTAT copUibie romtr sod dot 855 pourS. Give SOpsSsr p55. 5758 8068 odtS sperifr SiS 33 diSks 5855 chck o wsq cod So CYGNET Software619 792-8021 3525 Del Mar Heights #237b San Diego 92130 134 Model Aviation PING & HANDLING ups Ground Continental us $495 ups Air & Parcel Post $495 plus 10% Subtotal Continental us ups Next Day Air $t400 plus $100 per lb Shipment total COD add $395 Foreign Orders Parcel Post Air $495 Subtotal u S Mail $4 95 plus 10% Subtotal mm mm OUTSIDE Ci section would about 32% 00 nose up approaching stall maximum variation 230 other words center pressure shift 9% chord compared 43% flat-bottomed wing section wish Id known experiments conclusions can add messing about also clearly illustrates much better pitch stability tracking wind symmetrical section used high-wing lightly loaded low-powered model airplane Unfortunately because prejudiced attitude favors flat-bottomed sections trainers experts unable give concept fair try truly rather sad since experts have mentally relegated outstanding trainer secondairplane sport-flier role building designed writer reduced dihedral another lowered wing incidence review models Back doing product reviews magazines Art Schroeder editor MAN years gave excellent piece advice Art told reader review interested would have designed kit wants know kit builds flies designed write up own personal modifications manufacturers product youre doing review youre doing construction article Bob Benjamins Big Bingo Higginsville June Float Fly call came Washingtonian Bob Benjamin expressing interest setting up Big Bingo prototype Astro Flite 90 electric motor asked talk Bob about perceptions concerning project very delightful conversation ensued Frankly initial reaction Youve got kidding after talking Bob learning bit project sounded less less far out Bobs knowledge electric flying well documented quickly concluded anyone could successfully set up electric power model size fellow Essentially needed reduce bare airframe weight about additional UNIVERSAL STRAP ON P OldV enginOs wmout mLJfflef DoltS 29-45 iT- 40P 52195 51-61 JT-ROP 52395 MOSS U 51 CSo p 25 50 51-61 $2496 MAIL ORDER Please add $250 UPS shipping Check MO Visa MC COD accepted Add $400 extra COO California residents add 8% sales tax weight needed 32-cell 2500-mAh battery pack informed electric motor weighed less 120 stroker its fuel concluded substituting balsa wing leading edge tail feathers using Klett fiberglass landing gear found Ace R/C 4-120 kit elim inating some light ply kits fuselage forward areas no vibration control problems electric Big Bingo could built within required weight parameters give some power comparison numbers between Astro 90 usual four-cycle 120 wet power plant Bob found electric unit would turn 16 x 8 prop 7000 rpm drawing 30 amps As know terribly far sort numbers reads 120 stroker Benjamin has written about project interesting article recent issue Model Builder magazine heartily recommend 32-cell 2500-mAh battery pack Big Bingo weighs 18 poundsabout four usual Big Bingo Using reworked 18 x 6 prop overall thinning cutting slight undercamber airplane breaks ground after run about 100 feet none-too-smooth grass field Bob says though Big Bingo doesnt fly particularly fast will climb surprisingly well determined possible maintain 300 climb angle takeoff maintain long desired Rolls slow positive Loops slow solid stall turns quite crisp Low-speed handling no problem extra weight moderately high wing loading make Electric Bingo pleasure fly land wind 2500 pack flight duration order seven eight minutes Bob has certainly proven feasibility electric power large models would think large designs specifically tailored lowered vibration levels electric power viable solution fly areas noise problem Congratulations Bob opening up exciting new way Fly Fun other hand Longtime pen pal Dick Gibbs has extolling fun found 10-A-il P 1sr40 JT-M1051 rnsx 11-51590 1551255 iT-MU 100 lrwlzor ASP 111552995 POt 742995 MAO 9110020911 MAX scsi3491 51 l551.902991 55 253000-1531 MOKI 111iSO CEIIRA 12021191 irn 4511 AU m March 1993 135 Pitts-Style Mufflers UNIVERSAL BOLT ON Foe SIde motilsed engInes Will fIt 90% engInes made attN 1989 Easy atd-l Just bolt muMMer 50 nglne WIth factory muffler bolts xr bolts supolied wIth muffler 29 JT 40P8 45 $22 95iT 6OPR Exhaust extensIons worm drIve arid moIziting waD - Induded What works foam WIRE uar4un BENDS AND FORMS WiRE AND STRIPS OF METAL IN ANGLES CURVES LOOPS ETC No WB100 $400 SUUARE PUNCH SEt CUTS SQUARES AND SLOTS SET INCLUDES SIZES 1/B 3/16 1/4 5/163/5 MADE FROM NICKEL PLATED STEEL No SPS5 $1200 BRUSHES 3 PCS MINLATURE WIRE BRUSH BET ONE EACH BRASS NYLON STAINLESS MWB3 $300 T-PINS 1 1/4 100 PACK TP1 4 $200 ZONA SAWS iSO42 TEETH 3145230 20032 TEETH 3/4230 250MTTRE BOX250 450 LONG & SHORT BLADE 260 500 1 1/4 WIDE 270 BOO ZONA HAKA JUNIOR HACKSAW 165 DRILL SETS FIRST OUAUTY HIGH SPEED STEEL ALL SETS SUPPUED IN CASE 2S1ES-1/1B301/4 sIlSP14 400 2S100A 102 01-0055 MOST POPULAR D5153No 11060 B0pcSS1BBO 05154-NoBi I060I2OpC-1200 NEEDLE FILE SET 51/2- 12SHAPES PLASTIC HANDLE WITh EACH FILE GREAT ON WOOD PLASTIC METAL No NFSI01 -$500 INDUSTRIAL OUALITY X-TRA HEAVY DUTY 12 SHAPE 4 LONG $650 NG $600 DREMEL 3950 TOP OP THE LINE MOTO POWER TOOL SET INCLUDES 40 ACCESSORIES AND CASE No 3950 $7000 VRUSHE MADE IN USA 13/PACK NoEB12- $100 Doz No EB144 -$700 Gross PIN VISE STAINLESS STEEL-S TO 1/B CAP PV4 4-LONG-$4oo PV6 B LONG 600 PV1O-10-LONG- 800 FY15 -15- LONG -1000 PV614- 0 1/4 Capacity $600 TUBE CUTTER 1/5 TO S/B CAPACITY HEAVY DUTY MADE PROM SEMI-STEEL No TC58 -$400 HOBBY KNIFE BLADES No11 MADE IN USA 105 PACK NoHKBl 1- $650 SINGLE EDGE BLADES MADE IN USA FIRST OUAUTY NO9100 PACK NoSEB1O2 $450 HEAVY DUTY NO11 FIRST OUALITY 100 PACK .a SEBlOl ouu Z PLIERS MAKES PERFECT Z BENDS WITH SOUEEZE NoZPL $1650 LONG DRILLS FIRST OUALITY- HIGH SPEED STEEL1/16 1/8 12 LONG18 LONG5132 3/1 6 1/4 LG1 1/16 $450 LG6 3/16 $1500 .d 1/6450LG7 7/32 1500 I12 LONG LG3 5/32450LGS 1/4 1500 4 3/16450 LGS 1/4550 CUTrING MATS HEALS ITSELF AFTER EACH CUT AND SURFACE STAYS SMOOTH NONGLARE GREEN FINISH CUT ON BOTH SIDES CM8 9 x 12 $1000 CM12 12 x 18 1500 HELPING HAND FIRST OUALITY THREE ARMS 2 ARMS WITH ALLIGATOR CLIPS 1 ARM WITH 25 GLASS 2 1/2 MAGNIFIER HH1 -$700 NORTH WESTERN CHOP SAW MA5S PERFECT MITRE CUTS 50 45 N WOOD OR PLASTIC JSES SINGLE EDGE BLADE STOP NCS -1450 T-BAR srhLJn ALUMINUM MADE IN USA Til 11LONG $230 T22 22 LONG $350 SANDPAPER RUFFTUFF ADHESIVE SACK $1OSE& ISPECIFYFINEIRSFI MEDIUM IRSM OP COAPEF IRSCl ELECTRONIC CALIPER 1ST INDUSTRIAL OUALITY READS IN INCHES AND METRIC 0-6-0- 155MM EC6 $5500 DiAL-CALIPER _____________________WHEN ORDERINU 1ST INDUSTRIAL QUALITY P RD ADD $300 0-6 100 SINGLE REVOLUTION EASTERN TOOL&SUPPLYCO COD ADD$750 GRAD IN 001 149 GRAND STREET NEW YORK NY 10013 ORDERS 212-925-1006 SASH CHROME FINISH WRITE FOR CATALOG $3 00- OR FREE WITH ORDER CE 212-226-3749 ITH FITTED CASE FAX 212-925-1010DC6 $2100 COMET LING ELAND VICTOR STANZEL EST ER MBECKER VK 2 00 0 4 CO UJ UJ IS 0 Iw B 00 0 00 LU I- z UJ LU 00 0 K LU 00 LU Co 0 z 0 C 23 2 Co C 23 C 2 Co 0 0 C 0 z CS 0 0 2 -4 m C 23 o Co 0 C m C 23 2 0 -I m C C BAY RIDGE NTIFIC LESS L ICAN JUNIOR ONE T CARMEL T PLANES Composites rglass experts video shows describes easy use composites construct basic lamination 1993 catalog included $5-off coupon towards first order Approximately 60 minutes Only $2495 plus $450 shipping handling ____ e Development 800 821 tiny electric free flight models bimonthly Flying Models column years increasing availability very small electric power plants responsiblenot mention appealing simplicity no gumbands CO2 cartridges Ed Toner Howell New Jersey has bitten little electric bug sent photos enlarged Bill Hannans Stringless Wonder Power tiny Ken Basset geared electric unit Ed calls model Wired Wonder Charging done ELF-Flyer Charger handy little hand-held device holds four C cells Ed doesnt use charging jack switch just uses small alligator clips directly protruding copper points motor 50-second charge yields 100-second runs full power plus 20 seconds decreas ing transitional power Eight times between two three minutes dead air previous attempt design failure Ed used original Hannan 10-inch version small Comet plastic prop says thing zipped along really high speeds wouldnt climb new version uses 60 downthrust original Ed speculates geared Basset unit would fly Bostonian rubber design authority leads suggest use tiny Units indoor models Wouldnt barrel fun9 Darts stuff As may recall got lost topic CulverlDriggs Dart full-scale aircraft several months ago case readers have interest Driggs Dart super set two-inchto-the-foot three-view-type drawings available B2 Streamlines PO Box 976 Olalla WA 98359 model construction drawings superbly detailed full-scale aircraft suitable adding details existing model same firm has long list exciting unusual gliders such construction plan form Write B2 Streamlines catalog Along Culver Dart trail Fran Ptaszkiewicz deBolt Bipe included Octobers Flying Fun sent along photo Culver Dart spotted Niagara Falls Air Show 1982 also sent along Anderson Greenwood photo since plane next Dart As likely know superb Paul Matt three-views Anderson available hasnt someone modeled really different eminently buildable prototype have availability fiberglass fuselage would present few challenges thing sure looks like good RC free flight subject Some new stuff short little flexible rubber antenna shown transmitter prototype Ace RIC Ive using since May 1992 other pilots have 136 Model Aviation berg. Walker. Taibi. deBolt recognize names youre gonna love DO YOU SPEAK MODEL AIRPLANE Its Dave Thomburgs conctse witty history U S aeromodeling twin pusher ugliest Stik its volume heroes models clubs kitmakers laid groundwork todays hobby-sport Order copy now Money back bores 2 320 pages paperback $1995 ACE SIG dealer postpaid Pony X Press 5 Monticello Drive Albuquerque NM 87123 Phone 505 299-8749 Cash Check MO Visa-Mastercard Still available Thornburgs OLD BUZZARDS SOARING BOOK 5 pp testing longer Ive flown about conceivable environment often four other models air same timewithout single problem As guy crashed Big Bingo transmitter antenna broke off flightnot mention time stuck regular antenna pusher propI can really appreciate unit Additionally unless fly knees theres no way drag ground Rubber Ducky antenna available replacement unit Ace transmitters perhaps other brands Contact factory information Its amazing often Ive other fliers PA announcers get excited think Im flying antenna retracted Myron Pickard Fiberglass Master see ad issue now has accessory cowl available Big Bingo unit designed enclose inverted Zenoab Quadra gas burner tapers 3/2- spinner Looks really neat Finally fly-ins perfect flying weather have caused get seriously behind correspondence stack make effort answer letters include SASEsooner later Unfortunately year its later Ill get done As always need send photos unusual model aircraft subject should exclusive magazine mean anything ModelldeBolt Continued page 53 yet find way improve process doing will also come understand what makes tick should see flight performance goal twofold First stay up long possible technically have lowest rate sinkor best model liftto-drag [LID] ratio Second maximum duration model must climb fast steeply possible gain maximum altitude during limited power run best rate climb standpoint aerodynamics involved two goals opposites thus requiring careful consideration can achieve both goals simultaneously can hope complementary factors can used ultimate design compromises will detract greatly either goal cant have cake eat too lowest sink rate comes greatest amount lift However lift production equates drag drag major adversary rate climb So have immediate need compromise best answer could get much lift possible sources would increase drag least new force arrangement will follow such path UNLEASH POWER WITHIN h DIESELIZE its AWESOME Bigger Engine Won t Fit MORE POWER Typical 45 Will Turn 13-6 Over 10000 Get 3 Mm Oz & Idle Well Below 2000 BIGGER PROPS COOL RUNNING LESS NOISE NO GLOWPLUGS LOW IDLE Largest Producer Model Diesel Fuels Call 203 877-1670 send 75 stamped #10 SASE & $200 Davis Diesel Development ox 141 ord CT 06460 World Leader Model Diesel Technology Since 1975 ll Today Dealer Inquiries Welcome models available weigh both gins cc ozs High accuracy guaranteed tare have strain gage transducers Whether build indoor models big birds between have scale Send #10 SASE brochure Discount prices $9900 up $24750 Includes AC adaptor UPS 1 yr warrantee Champion Model Products 880 Carmen Court La Verne CA 91750 909 599-3348 March 1993 137 Ask Original ffI LUflcfleI Pit CrwTM VWSWADAkOAWI nchr CuI 5EiEih Lancelot Ft Impa WA OBEiC j fO5] 785-8451 foam ask.
Edition: Model Aviation - 1993/03
Page Numbers: 56, 57, 134, 135, 136, 137
Dr. D B Mathews FUN EXPLOSION Golly what great year 1992 fly-ins least sure area Out curiosity just looked through mileage records attended 14 events 23-week span between May 9 October 18 within four-hour drive home did attend three other events because obvious wind going too strong events noncompetitive course Anyone also attended SAM Quickie 500 pattern competitions area would have road weekend Never memory have seen anything like fly-ins held over country weekend attendance exploding As matter fact several activities have outgrown available flying facilities IMAA event drew models pit area overfilled necessitating double rowing parked models Several flyins swamped local volunteers badly people members club pitch flight line inspection frequency control chores Im sure what causing explosion noncompetitive flyins sure delight see folks having really good time arent fly-ins give some serious thought next flying season arent going judged anything smile come Fly Fun What Naturally mail often contains contest etc announcements Id like promote thats obviously impossible However once pushes humor button Let share outlandish announces second annual Cuckoo Challenge Lo behold isnt some flight copywriters fancy actually Cuckoo Virginia happy folks held combination AMA- SAM-rules smallfield free flight event August 22-23 1992 Refreshments served Paupers Ridge snack bar am making up second important thing Almost everyone agrees first supplemental device needed after purchasing basic radio system expanded-scale volt meter ESV suggest second most-needed device fast field cbarger FFC gadget can remain flying field recharge radios batteries car battery used starter Most us around use Ace R/C unit since has sensor detects full charge shifts trickle mode other brands Im sure Incidentally avoid units used RC cars voltage amp cutoffs matched model-flying parameters An FFC helps avoid disaster caused classic meters red can get flight syndrome also prevents forgot charge up after last week error make occasionally device just flat-dabbed indispensable us As matter fact 1 give up either ESV FEC Id choose give up ESV gyros Remember RC gyrocopter photos information included Flying Fun year ago got started some information material supplied Charles Beck built using plans supplied him friend Australia first sent copies drawings interested readers learned kit produced England DB Models wishing steal something owner David Boddington started advising readers correct source England Boddington did answer inquiries 56 Model Aviation u FrF 909 N Maize Road Townhouse 734 Wichita KS 76212 John Walkers stock kit wniz 40 powered K&B 45 Sportster model will fly slower walking speed yet its capable consecutive snap rolls full throttle columnists Micropro transmitter full-scale Anderson Greenwood Doc says looks like nice subject modeling Rubber Ducky antenna now Note dihedral good gear location Paul Matt three-views available available replacement unit have unable verify whether DB Models still exists appeared put whole situation limbo Now along comes Peter H Johnson Walton Hills Ohio information will make possible others build fly wayout-of-the-mt models Peter has discovered Gyrace later design Boddington published construction article RCM&E some years ago drawings available Bob Holman Plans see ad issue plan number RC 1553 youre consider ordering Model Aircraft Plan Book illustrates hundreds free flight control line RC construction plans have published England over years Johnson says model will loop roll hover fly backward breeze 25-in rotors 26-in centers 50 negative pitch Power 05 25 FSR Frankly Gyrace attractive DB Models gyro anyway build Looks like true Flying Fun project Now tell As previously related column spent huge amount time developing trainer Ace RIC stumbled about trying several airfoil variations etc finally concluded moderately thick semisymmetrical airfoil superior traditional flat-bottom section calmest wind conditions As often case discovery original just thought Ted Off Ventura California recently sent copies series columns written way back 1981 RCM&E England Peter Russell life certainly would have simpler seen Russells material Above Astro Flight 90 motor installed Big Bingo swings 16 x 8 prop 8 10 minutes 32-cell 2500-mAh battery pack Left Completed model covered Coverites 21st Century Fabric Lightweight fiberglass gear replaced kits heavy-duty aluminum unit before beginning trainer project familiar Peter Russell considered preeminent authority modeling matters England English-speaking world essentially Bill Winter Ken Willard Europe Im going quote sections columns Russell wrote September 1981 December 1981 May 1982 issues RCM&E have done lot experimenting matching aerofoils aeroplanes have come conclusion plain straightforward symmetrical wing between 10 15% thickness located about 35% chord takes lot beating practically powered model aircraft March 1993 57 Top Left Bob Benjamins Electric Big Bingo uncovered kits ruggedness enabled Bob safely lighten structure Continued page 134 Peter Johnsons Gyrace RCM&E plan #1553 available E4. 0 howell New Jersey eniargea iiannan iringies through Bob Holman Plans Powered OS 25 FSR Wonder 13-in span Ed calls model Wired Wonder Its model will loop roll hover fly backwards breeze powered tiny Ken Basset geared electric motor unit Wegner D L Wehrly Herb Weinberg David M Weir Harvey E Welsh John E Werner Frank H West Larry 0 Wewer Dennis D Wheaton Kenith R Wheeler Roger Wheeler Charles D Whitcomb Donald E White Thomas White Rowland S Whiteman Paul E Wible Ray M Wickham Kirk R Wicklund G B Wikiund Everett Wilkins Hugh W Wilkinson Francis Williams Rex Williams Capt Dale Willoughby Usmc David E Wilson John D Windmiller Juergens 0 Winkler Ross H Wise James W Witte Donald J Wiwczar Edward N Wolf Robert R Wolfarth George L Wolfe Irving Wolk Irving Wolk Irving Wolk Todd J Wolt James E Womack Lester Woodin Alfred C Woodward Norman E Worsley II Wilma Wright Leon H Wysong Palmer L Yale John J Yankura Ronald W Yawn F R Yoho Alwin Yoshimoto Jack Young Jack D Young Ted J Young Bradley F Yuhas Robert J Zent Randy J Zezulka Donald A Ziemer Shane F Zikmund Stanley T Zimmerman Bill Zimmermann Robert F Ziotkowski ng FunlMathews Continued page 57 say because symmetrical section although lifting capability less cambered section drag pitching moment due angle attack variation later point makes particularly suitable trainers traditional flat-bottom section used trainers since year dot gives very little improvement lift Most flat-bottom sections will also pitch sensitive tending produce twitchy model would normal symmetrical section well-rounded nose Now didnt make suggestion spur moment capacity chief test pilot flying instructor modelers part world falls visaBJrn/c ELECTRONICS rif-izrk XXS SERVOS etc FOR OLDER RADIO UPDATES WE HAVE OVER 26 YEARS EXPERIENCE IN &C AT WE 1466 windward dr mason ohio 45040 ph 513 398-5423 lot fly kind model can imagine trainers imagine last few years have flown just about kind trainer known man seem pretty easy often wonder anywhere near ideal purpose intendedthat teaching complete beginners fly Several years ago several us got together see couldnt make better trainer basic layout trainers good though lot feature short nose makes difficult get CC center-of-gravity far enough forward Since trainers have near-universal wing about 54-inch span 8-inch chord addition two wings made flat bottomed 12% symmetrical also able try wings borrowed number proprietary trainers results subsequent test-flying proved conclusively model symmetrical wing section handled better others difference flying stalling speed between flat-bottom sections symmetrical ones quite immeasurable much pilots test programme unable say just flying model straight level wing flying Only after tossing about bit able make accurate guesses likely based handling rather speed flat-bottomed constant chord wing about 61 aspect ratio no washout can very nasty rearward CC symmetrical section wing same dimensions gives superior handling Incidentally yet another point favor advocacy symmetrical wing sections sport trainer models might have overlooked symmetrical section has center-of-pressure travel moves little varying angles attack whereas typical flat bottom section nearly universal type model will have center-ofpressure location varies between 70% chord 20 nose up 27% approaches stall So itself creates destabilising effect will make CC location critical comparison figures symmetrical nearly symmetrical plot airfoils dot matrix printer wIth FOILED_AGAIN! PLOT AIRFOILS IN ANY CHORD UP TO 24 INCHES MODIFY THICKNESS CAMBER & TRAILING EDGE PLOT SKIN THICKNESS FOR SHEETED WINGS ENTER DATA EASILY VIA INTELLIGENr EDITOR USER-FRIENDLY MENU-DRIVEN OPERATION INCLUDES 50 AIRFOIL FILES 26-PAGE USER MANUAL CA nhldeirO $45oo 05. oders pits mc Idrntiofi brk riflO US$55 lbqdres OMPCfliTAT copUibie romtr sod dot 855 pourS. Give SOpsSsr p55. 5758 8068 odtS sperifr SiS 33 diSks 5855 chck o wsq cod So CYGNET Software619 792-8021 3525 Del Mar Heights #237b San Diego 92130 134 Model Aviation PING & HANDLING ups Ground Continental us $495 ups Air & Parcel Post $495 plus 10% Subtotal Continental us ups Next Day Air $t400 plus $100 per lb Shipment total COD add $395 Foreign Orders Parcel Post Air $495 Subtotal u S Mail $4 95 plus 10% Subtotal mm mm OUTSIDE Ci section would about 32% 00 nose up approaching stall maximum variation 230 other words center pressure shift 9% chord compared 43% flat-bottomed wing section wish Id known experiments conclusions can add messing about also clearly illustrates much better pitch stability tracking wind symmetrical section used high-wing lightly loaded low-powered model airplane Unfortunately because prejudiced attitude favors flat-bottomed sections trainers experts unable give concept fair try truly rather sad since experts have mentally relegated outstanding trainer secondairplane sport-flier role building designed writer reduced dihedral another lowered wing incidence review models Back doing product reviews magazines Art Schroeder editor MAN years gave excellent piece advice Art told reader review interested would have designed kit wants know kit builds flies designed write up own personal modifications manufacturers product youre doing review youre doing construction article Bob Benjamins Big Bingo Higginsville June Float Fly call came Washingtonian Bob Benjamin expressing interest setting up Big Bingo prototype Astro Flite 90 electric motor asked talk Bob about perceptions concerning project very delightful conversation ensued Frankly initial reaction Youve got kidding after talking Bob learning bit project sounded less less far out Bobs knowledge electric flying well documented quickly concluded anyone could successfully set up electric power model size fellow Essentially needed reduce bare airframe weight about additional UNIVERSAL STRAP ON P OldV enginOs wmout mLJfflef DoltS 29-45 iT- 40P 52195 51-61 JT-ROP 52395 MOSS U 51 CSo p 25 50 51-61 $2496 MAIL ORDER Please add $250 UPS shipping Check MO Visa MC COD accepted Add $400 extra COO California residents add 8% sales tax weight needed 32-cell 2500-mAh battery pack informed electric motor weighed less 120 stroker its fuel concluded substituting balsa wing leading edge tail feathers using Klett fiberglass landing gear found Ace R/C 4-120 kit elim inating some light ply kits fuselage forward areas no vibration control problems electric Big Bingo could built within required weight parameters give some power comparison numbers between Astro 90 usual four-cycle 120 wet power plant Bob found electric unit would turn 16 x 8 prop 7000 rpm drawing 30 amps As know terribly far sort numbers reads 120 stroker Benjamin has written about project interesting article recent issue Model Builder magazine heartily recommend 32-cell 2500-mAh battery pack Big Bingo weighs 18 poundsabout four usual Big Bingo Using reworked 18 x 6 prop overall thinning cutting slight undercamber airplane breaks ground after run about 100 feet none-too-smooth grass field Bob says though Big Bingo doesnt fly particularly fast will climb surprisingly well determined possible maintain 300 climb angle takeoff maintain long desired Rolls slow positive Loops slow solid stall turns quite crisp Low-speed handling no problem extra weight moderately high wing loading make Electric Bingo pleasure fly land wind 2500 pack flight duration order seven eight minutes Bob has certainly proven feasibility electric power large models would think large designs specifically tailored lowered vibration levels electric power viable solution fly areas noise problem Congratulations Bob opening up exciting new way Fly Fun other hand Longtime pen pal Dick Gibbs has extolling fun found 10-A-il P 1sr40 JT-M1051 rnsx 11-51590 1551255 iT-MU 100 lrwlzor ASP 111552995 POt 742995 MAO 9110020911 MAX scsi3491 51 l551.902991 55 253000-1531 MOKI 111iSO CEIIRA 12021191 irn 4511 AU m March 1993 135 Pitts-Style Mufflers UNIVERSAL BOLT ON Foe SIde motilsed engInes Will fIt 90% engInes made attN 1989 Easy atd-l Just bolt muMMer 50 nglne WIth factory muffler bolts xr bolts supolied wIth muffler 29 JT 40P8 45 $22 95iT 6OPR Exhaust extensIons worm drIve arid moIziting waD - Induded What works foam WIRE uar4un BENDS AND FORMS WiRE AND STRIPS OF METAL IN ANGLES CURVES LOOPS ETC No WB100 $400 SUUARE PUNCH SEt CUTS SQUARES AND SLOTS SET INCLUDES SIZES 1/B 3/16 1/4 5/163/5 MADE FROM NICKEL PLATED STEEL No SPS5 $1200 BRUSHES 3 PCS MINLATURE WIRE BRUSH BET ONE EACH BRASS NYLON STAINLESS MWB3 $300 T-PINS 1 1/4 100 PACK TP1 4 $200 ZONA SAWS iSO42 TEETH 3145230 20032 TEETH 3/4230 250MTTRE BOX250 450 LONG & SHORT BLADE 260 500 1 1/4 WIDE 270 BOO ZONA HAKA JUNIOR HACKSAW 165 DRILL SETS FIRST OUAUTY HIGH SPEED STEEL ALL SETS SUPPUED IN CASE 2S1ES-1/1B301/4 sIlSP14 400 2S100A 102 01-0055 MOST POPULAR D5153No 11060 B0pcSS1BBO 05154-NoBi I060I2OpC-1200 NEEDLE FILE SET 51/2- 12SHAPES PLASTIC HANDLE WITh EACH FILE GREAT ON WOOD PLASTIC METAL No NFSI01 -$500 INDUSTRIAL OUALITY X-TRA HEAVY DUTY 12 SHAPE 4 LONG $650 NG $600 DREMEL 3950 TOP OP THE LINE MOTO POWER TOOL SET INCLUDES 40 ACCESSORIES AND CASE No 3950 $7000 VRUSHE MADE IN USA 13/PACK NoEB12- $100 Doz No EB144 -$700 Gross PIN VISE STAINLESS STEEL-S TO 1/B CAP PV4 4-LONG-$4oo PV6 B LONG 600 PV1O-10-LONG- 800 FY15 -15- LONG -1000 PV614- 0 1/4 Capacity $600 TUBE CUTTER 1/5 TO S/B CAPACITY HEAVY DUTY MADE PROM SEMI-STEEL No TC58 -$400 HOBBY KNIFE BLADES No11 MADE IN USA 105 PACK NoHKBl 1- $650 SINGLE EDGE BLADES MADE IN USA FIRST OUAUTY NO9100 PACK NoSEB1O2 $450 HEAVY DUTY NO11 FIRST OUALITY 100 PACK .a SEBlOl ouu Z PLIERS MAKES PERFECT Z BENDS WITH SOUEEZE NoZPL $1650 LONG DRILLS FIRST OUALITY- HIGH SPEED STEEL1/16 1/8 12 LONG18 LONG5132 3/1 6 1/4 LG1 1/16 $450 LG6 3/16 $1500 .d 1/6450LG7 7/32 1500 I12 LONG LG3 5/32450LGS 1/4 1500 4 3/16450 LGS 1/4550 CUTrING MATS HEALS ITSELF AFTER EACH CUT AND SURFACE STAYS SMOOTH NONGLARE GREEN FINISH CUT ON BOTH SIDES CM8 9 x 12 $1000 CM12 12 x 18 1500 HELPING HAND FIRST OUALITY THREE ARMS 2 ARMS WITH ALLIGATOR CLIPS 1 ARM WITH 25 GLASS 2 1/2 MAGNIFIER HH1 -$700 NORTH WESTERN CHOP SAW MA5S PERFECT MITRE CUTS 50 45 N WOOD OR PLASTIC JSES SINGLE EDGE BLADE STOP NCS -1450 T-BAR srhLJn ALUMINUM MADE IN USA Til 11LONG $230 T22 22 LONG $350 SANDPAPER RUFFTUFF ADHESIVE SACK $1OSE& ISPECIFYFINEIRSFI MEDIUM IRSM OP COAPEF IRSCl ELECTRONIC CALIPER 1ST INDUSTRIAL OUALITY READS IN INCHES AND METRIC 0-6-0- 155MM EC6 $5500 DiAL-CALIPER _____________________WHEN ORDERINU 1ST INDUSTRIAL QUALITY P RD ADD $300 0-6 100 SINGLE REVOLUTION EASTERN TOOL&SUPPLYCO COD ADD$750 GRAD IN 001 149 GRAND STREET NEW YORK NY 10013 ORDERS 212-925-1006 SASH CHROME FINISH WRITE FOR CATALOG $3 00- OR FREE WITH ORDER CE 212-226-3749 ITH FITTED CASE FAX 212-925-1010DC6 $2100 COMET LING ELAND VICTOR STANZEL EST ER MBECKER VK 2 00 0 4 CO UJ UJ IS 0 Iw B 00 0 00 LU I- z UJ LU 00 0 K LU 00 LU Co 0 z 0 C 23 2 Co C 23 C 2 Co 0 0 C 0 z CS 0 0 2 -4 m C 23 o Co 0 C m C 23 2 0 -I m C C BAY RIDGE NTIFIC LESS L ICAN JUNIOR ONE T CARMEL T PLANES Composites rglass experts video shows describes easy use composites construct basic lamination 1993 catalog included $5-off coupon towards first order Approximately 60 minutes Only $2495 plus $450 shipping handling ____ e Development 800 821 tiny electric free flight models bimonthly Flying Models column years increasing availability very small electric power plants responsiblenot mention appealing simplicity no gumbands CO2 cartridges Ed Toner Howell New Jersey has bitten little electric bug sent photos enlarged Bill Hannans Stringless Wonder Power tiny Ken Basset geared electric unit Ed calls model Wired Wonder Charging done ELF-Flyer Charger handy little hand-held device holds four C cells Ed doesnt use charging jack switch just uses small alligator clips directly protruding copper points motor 50-second charge yields 100-second runs full power plus 20 seconds decreas ing transitional power Eight times between two three minutes dead air previous attempt design failure Ed used original Hannan 10-inch version small Comet plastic prop says thing zipped along really high speeds wouldnt climb new version uses 60 downthrust original Ed speculates geared Basset unit would fly Bostonian rubber design authority leads suggest use tiny Units indoor models Wouldnt barrel fun9 Darts stuff As may recall got lost topic CulverlDriggs Dart full-scale aircraft several months ago case readers have interest Driggs Dart super set two-inchto-the-foot three-view-type drawings available B2 Streamlines PO Box 976 Olalla WA 98359 model construction drawings superbly detailed full-scale aircraft suitable adding details existing model same firm has long list exciting unusual gliders such construction plan form Write B2 Streamlines catalog Along Culver Dart trail Fran Ptaszkiewicz deBolt Bipe included Octobers Flying Fun sent along photo Culver Dart spotted Niagara Falls Air Show 1982 also sent along Anderson Greenwood photo since plane next Dart As likely know superb Paul Matt three-views Anderson available hasnt someone modeled really different eminently buildable prototype have availability fiberglass fuselage would present few challenges thing sure looks like good RC free flight subject Some new stuff short little flexible rubber antenna shown transmitter prototype Ace RIC Ive using since May 1992 other pilots have 136 Model Aviation berg. Walker. Taibi. deBolt recognize names youre gonna love DO YOU SPEAK MODEL AIRPLANE Its Dave Thomburgs conctse witty history U S aeromodeling twin pusher ugliest Stik its volume heroes models clubs kitmakers laid groundwork todays hobby-sport Order copy now Money back bores 2 320 pages paperback $1995 ACE SIG dealer postpaid Pony X Press 5 Monticello Drive Albuquerque NM 87123 Phone 505 299-8749 Cash Check MO Visa-Mastercard Still available Thornburgs OLD BUZZARDS SOARING BOOK 5 pp testing longer Ive flown about conceivable environment often four other models air same timewithout single problem As guy crashed Big Bingo transmitter antenna broke off flightnot mention time stuck regular antenna pusher propI can really appreciate unit Additionally unless fly knees theres no way drag ground Rubber Ducky antenna available replacement unit Ace transmitters perhaps other brands Contact factory information Its amazing often Ive other fliers PA announcers get excited think Im flying antenna retracted Myron Pickard Fiberglass Master see ad issue now has accessory cowl available Big Bingo unit designed enclose inverted Zenoab Quadra gas burner tapers 3/2- spinner Looks really neat Finally fly-ins perfect flying weather have caused get seriously behind correspondence stack make effort answer letters include SASEsooner later Unfortunately year its later Ill get done As always need send photos unusual model aircraft subject should exclusive magazine mean anything ModelldeBolt Continued page 53 yet find way improve process doing will also come understand what makes tick should see flight performance goal twofold First stay up long possible technically have lowest rate sinkor best model liftto-drag [LID] ratio Second maximum duration model must climb fast steeply possible gain maximum altitude during limited power run best rate climb standpoint aerodynamics involved two goals opposites thus requiring careful consideration can achieve both goals simultaneously can hope complementary factors can used ultimate design compromises will detract greatly either goal cant have cake eat too lowest sink rate comes greatest amount lift However lift production equates drag drag major adversary rate climb So have immediate need compromise best answer could get much lift possible sources would increase drag least new force arrangement will follow such path UNLEASH POWER WITHIN h DIESELIZE its AWESOME Bigger Engine Won t Fit MORE POWER Typical 45 Will Turn 13-6 Over 10000 Get 3 Mm Oz & Idle Well Below 2000 BIGGER PROPS COOL RUNNING LESS NOISE NO GLOWPLUGS LOW IDLE Largest Producer Model Diesel Fuels Call 203 877-1670 send 75 stamped #10 SASE & $200 Davis Diesel Development ox 141 ord CT 06460 World Leader Model Diesel Technology Since 1975 ll Today Dealer Inquiries Welcome models available weigh both gins cc ozs High accuracy guaranteed tare have strain gage transducers Whether build indoor models big birds between have scale Send #10 SASE brochure Discount prices $9900 up $24750 Includes AC adaptor UPS 1 yr warrantee Champion Model Products 880 Carmen Court La Verne CA 91750 909 599-3348 March 1993 137 Ask Original ffI LUflcfleI Pit CrwTM VWSWADAkOAWI nchr CuI 5EiEih Lancelot Ft Impa WA OBEiC j fO5] 785-8451 foam ask.
Edition: Model Aviation - 1993/03
Page Numbers: 56, 57, 134, 135, 136, 137
Dr. D B Mathews FUN EXPLOSION Golly what great year 1992 fly-ins least sure area Out curiosity just looked through mileage records attended 14 events 23-week span between May 9 October 18 within four-hour drive home did attend three other events because obvious wind going too strong events noncompetitive course Anyone also attended SAM Quickie 500 pattern competitions area would have road weekend Never memory have seen anything like fly-ins held over country weekend attendance exploding As matter fact several activities have outgrown available flying facilities IMAA event drew models pit area overfilled necessitating double rowing parked models Several flyins swamped local volunteers badly people members club pitch flight line inspection frequency control chores Im sure what causing explosion noncompetitive flyins sure delight see folks having really good time arent fly-ins give some serious thought next flying season arent going judged anything smile come Fly Fun What Naturally mail often contains contest etc announcements Id like promote thats obviously impossible However once pushes humor button Let share outlandish announces second annual Cuckoo Challenge Lo behold isnt some flight copywriters fancy actually Cuckoo Virginia happy folks held combination AMA- SAM-rules smallfield free flight event August 22-23 1992 Refreshments served Paupers Ridge snack bar am making up second important thing Almost everyone agrees first supplemental device needed after purchasing basic radio system expanded-scale volt meter ESV suggest second most-needed device fast field cbarger FFC gadget can remain flying field recharge radios batteries car battery used starter Most us around use Ace R/C unit since has sensor detects full charge shifts trickle mode other brands Im sure Incidentally avoid units used RC cars voltage amp cutoffs matched model-flying parameters An FFC helps avoid disaster caused classic meters red can get flight syndrome also prevents forgot charge up after last week error make occasionally device just flat-dabbed indispensable us As matter fact 1 give up either ESV FEC Id choose give up ESV gyros Remember RC gyrocopter photos information included Flying Fun year ago got started some information material supplied Charles Beck built using plans supplied him friend Australia first sent copies drawings interested readers learned kit produced England DB Models wishing steal something owner David Boddington started advising readers correct source England Boddington did answer inquiries 56 Model Aviation u FrF 909 N Maize Road Townhouse 734 Wichita KS 76212 John Walkers stock kit wniz 40 powered K&B 45 Sportster model will fly slower walking speed yet its capable consecutive snap rolls full throttle columnists Micropro transmitter full-scale Anderson Greenwood Doc says looks like nice subject modeling Rubber Ducky antenna now Note dihedral good gear location Paul Matt three-views available available replacement unit have unable verify whether DB Models still exists appeared put whole situation limbo Now along comes Peter H Johnson Walton Hills Ohio information will make possible others build fly wayout-of-the-mt models Peter has discovered Gyrace later design Boddington published construction article RCM&E some years ago drawings available Bob Holman Plans see ad issue plan number RC 1553 youre consider ordering Model Aircraft Plan Book illustrates hundreds free flight control line RC construction plans have published England over years Johnson says model will loop roll hover fly backward breeze 25-in rotors 26-in centers 50 negative pitch Power 05 25 FSR Frankly Gyrace attractive DB Models gyro anyway build Looks like true Flying Fun project Now tell As previously related column spent huge amount time developing trainer Ace RIC stumbled about trying several airfoil variations etc finally concluded moderately thick semisymmetrical airfoil superior traditional flat-bottom section calmest wind conditions As often case discovery original just thought Ted Off Ventura California recently sent copies series columns written way back 1981 RCM&E England Peter Russell life certainly would have simpler seen Russells material Above Astro Flight 90 motor installed Big Bingo swings 16 x 8 prop 8 10 minutes 32-cell 2500-mAh battery pack Left Completed model covered Coverites 21st Century Fabric Lightweight fiberglass gear replaced kits heavy-duty aluminum unit before beginning trainer project familiar Peter Russell considered preeminent authority modeling matters England English-speaking world essentially Bill Winter Ken Willard Europe Im going quote sections columns Russell wrote September 1981 December 1981 May 1982 issues RCM&E have done lot experimenting matching aerofoils aeroplanes have come conclusion plain straightforward symmetrical wing between 10 15% thickness located about 35% chord takes lot beating practically powered model aircraft March 1993 57 Top Left Bob Benjamins Electric Big Bingo uncovered kits ruggedness enabled Bob safely lighten structure Continued page 134 Peter Johnsons Gyrace RCM&E plan #1553 available E4. 0 howell New Jersey eniargea iiannan iringies through Bob Holman Plans Powered OS 25 FSR Wonder 13-in span Ed calls model Wired Wonder Its model will loop roll hover fly backwards breeze powered tiny Ken Basset geared electric motor unit Wegner D L Wehrly Herb Weinberg David M Weir Harvey E Welsh John E Werner Frank H West Larry 0 Wewer Dennis D Wheaton Kenith R Wheeler Roger Wheeler Charles D Whitcomb Donald E White Thomas White Rowland S Whiteman Paul E Wible Ray M Wickham Kirk R Wicklund G B Wikiund Everett Wilkins Hugh W Wilkinson Francis Williams Rex Williams Capt Dale Willoughby Usmc David E Wilson John D Windmiller Juergens 0 Winkler Ross H Wise James W Witte Donald J Wiwczar Edward N Wolf Robert R Wolfarth George L Wolfe Irving Wolk Irving Wolk Irving Wolk Todd J Wolt James E Womack Lester Woodin Alfred C Woodward Norman E Worsley II Wilma Wright Leon H Wysong Palmer L Yale John J Yankura Ronald W Yawn F R Yoho Alwin Yoshimoto Jack Young Jack D Young Ted J Young Bradley F Yuhas Robert J Zent Randy J Zezulka Donald A Ziemer Shane F Zikmund Stanley T Zimmerman Bill Zimmermann Robert F Ziotkowski ng FunlMathews Continued page 57 say because symmetrical section although lifting capability less cambered section drag pitching moment due angle attack variation later point makes particularly suitable trainers traditional flat-bottom section used trainers since year dot gives very little improvement lift Most flat-bottom sections will also pitch sensitive tending produce twitchy model would normal symmetrical section well-rounded nose Now didnt make suggestion spur moment capacity chief test pilot flying instructor modelers part world falls visaBJrn/c ELECTRONICS rif-izrk XXS SERVOS etc FOR OLDER RADIO UPDATES WE HAVE OVER 26 YEARS EXPERIENCE IN &C AT WE 1466 windward dr mason ohio 45040 ph 513 398-5423 lot fly kind model can imagine trainers imagine last few years have flown just about kind trainer known man seem pretty easy often wonder anywhere near ideal purpose intendedthat teaching complete beginners fly Several years ago several us got together see couldnt make better trainer basic layout trainers good though lot feature short nose makes difficult get CC center-of-gravity far enough forward Since trainers have near-universal wing about 54-inch span 8-inch chord addition two wings made flat bottomed 12% symmetrical also able try wings borrowed number proprietary trainers results subsequent test-flying proved conclusively model symmetrical wing section handled better others difference flying stalling speed between flat-bottom sections symmetrical ones quite immeasurable much pilots test programme unable say just flying model straight level wing flying Only after tossing about bit able make accurate guesses likely based handling rather speed flat-bottomed constant chord wing about 61 aspect ratio no washout can very nasty rearward CC symmetrical section wing same dimensions gives superior handling Incidentally yet another point favor advocacy symmetrical wing sections sport trainer models might have overlooked symmetrical section has center-of-pressure travel moves little varying angles attack whereas typical flat bottom section nearly universal type model will have center-ofpressure location varies between 70% chord 20 nose up 27% approaches stall So itself creates destabilising effect will make CC location critical comparison figures symmetrical nearly symmetrical plot airfoils dot matrix printer wIth FOILED_AGAIN! PLOT AIRFOILS IN ANY CHORD UP TO 24 INCHES MODIFY THICKNESS CAMBER & TRAILING EDGE PLOT SKIN THICKNESS FOR SHEETED WINGS ENTER DATA EASILY VIA INTELLIGENr EDITOR USER-FRIENDLY MENU-DRIVEN OPERATION INCLUDES 50 AIRFOIL FILES 26-PAGE USER MANUAL CA nhldeirO $45oo 05. oders pits mc Idrntiofi brk riflO US$55 lbqdres OMPCfliTAT copUibie romtr sod dot 855 pourS. Give SOpsSsr p55. 5758 8068 odtS sperifr SiS 33 diSks 5855 chck o wsq cod So CYGNET Software619 792-8021 3525 Del Mar Heights #237b San Diego 92130 134 Model Aviation PING & HANDLING ups Ground Continental us $495 ups Air & Parcel Post $495 plus 10% Subtotal Continental us ups Next Day Air $t400 plus $100 per lb Shipment total COD add $395 Foreign Orders Parcel Post Air $495 Subtotal u S Mail $4 95 plus 10% Subtotal mm mm OUTSIDE Ci section would about 32% 00 nose up approaching stall maximum variation 230 other words center pressure shift 9% chord compared 43% flat-bottomed wing section wish Id known experiments conclusions can add messing about also clearly illustrates much better pitch stability tracking wind symmetrical section used high-wing lightly loaded low-powered model airplane Unfortunately because prejudiced attitude favors flat-bottomed sections trainers experts unable give concept fair try truly rather sad since experts have mentally relegated outstanding trainer secondairplane sport-flier role building designed writer reduced dihedral another lowered wing incidence review models Back doing product reviews magazines Art Schroeder editor MAN years gave excellent piece advice Art told reader review interested would have designed kit wants know kit builds flies designed write up own personal modifications manufacturers product youre doing review youre doing construction article Bob Benjamins Big Bingo Higginsville June Float Fly call came Washingtonian Bob Benjamin expressing interest setting up Big Bingo prototype Astro Flite 90 electric motor asked talk Bob about perceptions concerning project very delightful conversation ensued Frankly initial reaction Youve got kidding after talking Bob learning bit project sounded less less far out Bobs knowledge electric flying well documented quickly concluded anyone could successfully set up electric power model size fellow Essentially needed reduce bare airframe weight about additional UNIVERSAL STRAP ON P OldV enginOs wmout mLJfflef DoltS 29-45 iT- 40P 52195 51-61 JT-ROP 52395 MOSS U 51 CSo p 25 50 51-61 $2496 MAIL ORDER Please add $250 UPS shipping Check MO Visa MC COD accepted Add $400 extra COO California residents add 8% sales tax weight needed 32-cell 2500-mAh battery pack informed electric motor weighed less 120 stroker its fuel concluded substituting balsa wing leading edge tail feathers using Klett fiberglass landing gear found Ace R/C 4-120 kit elim inating some light ply kits fuselage forward areas no vibration control problems electric Big Bingo could built within required weight parameters give some power comparison numbers between Astro 90 usual four-cycle 120 wet power plant Bob found electric unit would turn 16 x 8 prop 7000 rpm drawing 30 amps As know terribly far sort numbers reads 120 stroker Benjamin has written about project interesting article recent issue Model Builder magazine heartily recommend 32-cell 2500-mAh battery pack Big Bingo weighs 18 poundsabout four usual Big Bingo Using reworked 18 x 6 prop overall thinning cutting slight undercamber airplane breaks ground after run about 100 feet none-too-smooth grass field Bob says though Big Bingo doesnt fly particularly fast will climb surprisingly well determined possible maintain 300 climb angle takeoff maintain long desired Rolls slow positive Loops slow solid stall turns quite crisp Low-speed handling no problem extra weight moderately high wing loading make Electric Bingo pleasure fly land wind 2500 pack flight duration order seven eight minutes Bob has certainly proven feasibility electric power large models would think large designs specifically tailored lowered vibration levels electric power viable solution fly areas noise problem Congratulations Bob opening up exciting new way Fly Fun other hand Longtime pen pal Dick Gibbs has extolling fun found 10-A-il P 1sr40 JT-M1051 rnsx 11-51590 1551255 iT-MU 100 lrwlzor ASP 111552995 POt 742995 MAO 9110020911 MAX scsi3491 51 l551.902991 55 253000-1531 MOKI 111iSO CEIIRA 12021191 irn 4511 AU m March 1993 135 Pitts-Style Mufflers UNIVERSAL BOLT ON Foe SIde motilsed engInes Will fIt 90% engInes made attN 1989 Easy atd-l Just bolt muMMer 50 nglne WIth factory muffler bolts xr bolts supolied wIth muffler 29 JT 40P8 45 $22 95iT 6OPR Exhaust extensIons worm drIve arid moIziting waD - Induded What works foam WIRE uar4un BENDS AND FORMS WiRE AND STRIPS OF METAL IN ANGLES CURVES LOOPS ETC No WB100 $400 SUUARE PUNCH SEt CUTS SQUARES AND SLOTS SET INCLUDES SIZES 1/B 3/16 1/4 5/163/5 MADE FROM NICKEL PLATED STEEL No SPS5 $1200 BRUSHES 3 PCS MINLATURE WIRE BRUSH BET ONE EACH BRASS NYLON STAINLESS MWB3 $300 T-PINS 1 1/4 100 PACK TP1 4 $200 ZONA SAWS iSO42 TEETH 3145230 20032 TEETH 3/4230 250MTTRE BOX250 450 LONG & SHORT BLADE 260 500 1 1/4 WIDE 270 BOO ZONA HAKA JUNIOR HACKSAW 165 DRILL SETS FIRST OUAUTY HIGH SPEED STEEL ALL SETS SUPPUED IN CASE 2S1ES-1/1B301/4 sIlSP14 400 2S100A 102 01-0055 MOST POPULAR D5153No 11060 B0pcSS1BBO 05154-NoBi I060I2OpC-1200 NEEDLE FILE SET 51/2- 12SHAPES PLASTIC HANDLE WITh EACH FILE GREAT ON WOOD PLASTIC METAL No NFSI01 -$500 INDUSTRIAL OUALITY X-TRA HEAVY DUTY 12 SHAPE 4 LONG $650 NG $600 DREMEL 3950 TOP OP THE LINE MOTO POWER TOOL SET INCLUDES 40 ACCESSORIES AND CASE No 3950 $7000 VRUSHE MADE IN USA 13/PACK NoEB12- $100 Doz No EB144 -$700 Gross PIN VISE STAINLESS STEEL-S TO 1/B CAP PV4 4-LONG-$4oo PV6 B LONG 600 PV1O-10-LONG- 800 FY15 -15- LONG -1000 PV614- 0 1/4 Capacity $600 TUBE CUTTER 1/5 TO S/B CAPACITY HEAVY DUTY MADE PROM SEMI-STEEL No TC58 -$400 HOBBY KNIFE BLADES No11 MADE IN USA 105 PACK NoHKBl 1- $650 SINGLE EDGE BLADES MADE IN USA FIRST OUAUTY NO9100 PACK NoSEB1O2 $450 HEAVY DUTY NO11 FIRST OUALITY 100 PACK .a SEBlOl ouu Z PLIERS MAKES PERFECT Z BENDS WITH SOUEEZE NoZPL $1650 LONG DRILLS FIRST OUALITY- HIGH SPEED STEEL1/16 1/8 12 LONG18 LONG5132 3/1 6 1/4 LG1 1/16 $450 LG6 3/16 $1500 .d 1/6450LG7 7/32 1500 I12 LONG LG3 5/32450LGS 1/4 1500 4 3/16450 LGS 1/4550 CUTrING MATS HEALS ITSELF AFTER EACH CUT AND SURFACE STAYS SMOOTH NONGLARE GREEN FINISH CUT ON BOTH SIDES CM8 9 x 12 $1000 CM12 12 x 18 1500 HELPING HAND FIRST OUALITY THREE ARMS 2 ARMS WITH ALLIGATOR CLIPS 1 ARM WITH 25 GLASS 2 1/2 MAGNIFIER HH1 -$700 NORTH WESTERN CHOP SAW MA5S PERFECT MITRE CUTS 50 45 N WOOD OR PLASTIC JSES SINGLE EDGE BLADE STOP NCS -1450 T-BAR srhLJn ALUMINUM MADE IN USA Til 11LONG $230 T22 22 LONG $350 SANDPAPER RUFFTUFF ADHESIVE SACK $1OSE& ISPECIFYFINEIRSFI MEDIUM IRSM OP COAPEF IRSCl ELECTRONIC CALIPER 1ST INDUSTRIAL OUALITY READS IN INCHES AND METRIC 0-6-0- 155MM EC6 $5500 DiAL-CALIPER _____________________WHEN ORDERINU 1ST INDUSTRIAL QUALITY P RD ADD $300 0-6 100 SINGLE REVOLUTION EASTERN TOOL&SUPPLYCO COD ADD$750 GRAD IN 001 149 GRAND STREET NEW YORK NY 10013 ORDERS 212-925-1006 SASH CHROME FINISH WRITE FOR CATALOG $3 00- OR FREE WITH ORDER CE 212-226-3749 ITH FITTED CASE FAX 212-925-1010DC6 $2100 COMET LING ELAND VICTOR STANZEL EST ER MBECKER VK 2 00 0 4 CO UJ UJ IS 0 Iw B 00 0 00 LU I- z UJ LU 00 0 K LU 00 LU Co 0 z 0 C 23 2 Co C 23 C 2 Co 0 0 C 0 z CS 0 0 2 -4 m C 23 o Co 0 C m C 23 2 0 -I m C C BAY RIDGE NTIFIC LESS L ICAN JUNIOR ONE T CARMEL T PLANES Composites rglass experts video shows describes easy use composites construct basic lamination 1993 catalog included $5-off coupon towards first order Approximately 60 minutes Only $2495 plus $450 shipping handling ____ e Development 800 821 tiny electric free flight models bimonthly Flying Models column years increasing availability very small electric power plants responsiblenot mention appealing simplicity no gumbands CO2 cartridges Ed Toner Howell New Jersey has bitten little electric bug sent photos enlarged Bill Hannans Stringless Wonder Power tiny Ken Basset geared electric unit Ed calls model Wired Wonder Charging done ELF-Flyer Charger handy little hand-held device holds four C cells Ed doesnt use charging jack switch just uses small alligator clips directly protruding copper points motor 50-second charge yields 100-second runs full power plus 20 seconds decreas ing transitional power Eight times between two three minutes dead air previous attempt design failure Ed used original Hannan 10-inch version small Comet plastic prop says thing zipped along really high speeds wouldnt climb new version uses 60 downthrust original Ed speculates geared Basset unit would fly Bostonian rubber design authority leads suggest use tiny Units indoor models Wouldnt barrel fun9 Darts stuff As may recall got lost topic CulverlDriggs Dart full-scale aircraft several months ago case readers have interest Driggs Dart super set two-inchto-the-foot three-view-type drawings available B2 Streamlines PO Box 976 Olalla WA 98359 model construction drawings superbly detailed full-scale aircraft suitable adding details existing model same firm has long list exciting unusual gliders such construction plan form Write B2 Streamlines catalog Along Culver Dart trail Fran Ptaszkiewicz deBolt Bipe included Octobers Flying Fun sent along photo Culver Dart spotted Niagara Falls Air Show 1982 also sent along Anderson Greenwood photo since plane next Dart As likely know superb Paul Matt three-views Anderson available hasnt someone modeled really different eminently buildable prototype have availability fiberglass fuselage would present few challenges thing sure looks like good RC free flight subject Some new stuff short little flexible rubber antenna shown transmitter prototype Ace RIC Ive using since May 1992 other pilots have 136 Model Aviation berg. Walker. Taibi. deBolt recognize names youre gonna love DO YOU SPEAK MODEL AIRPLANE Its Dave Thomburgs conctse witty history U S aeromodeling twin pusher ugliest Stik its volume heroes models clubs kitmakers laid groundwork todays hobby-sport Order copy now Money back bores 2 320 pages paperback $1995 ACE SIG dealer postpaid Pony X Press 5 Monticello Drive Albuquerque NM 87123 Phone 505 299-8749 Cash Check MO Visa-Mastercard Still available Thornburgs OLD BUZZARDS SOARING BOOK 5 pp testing longer Ive flown about conceivable environment often four other models air same timewithout single problem As guy crashed Big Bingo transmitter antenna broke off flightnot mention time stuck regular antenna pusher propI can really appreciate unit Additionally unless fly knees theres no way drag ground Rubber Ducky antenna available replacement unit Ace transmitters perhaps other brands Contact factory information Its amazing often Ive other fliers PA announcers get excited think Im flying antenna retracted Myron Pickard Fiberglass Master see ad issue now has accessory cowl available Big Bingo unit designed enclose inverted Zenoab Quadra gas burner tapers 3/2- spinner Looks really neat Finally fly-ins perfect flying weather have caused get seriously behind correspondence stack make effort answer letters include SASEsooner later Unfortunately year its later Ill get done As always need send photos unusual model aircraft subject should exclusive magazine mean anything ModelldeBolt Continued page 53 yet find way improve process doing will also come understand what makes tick should see flight performance goal twofold First stay up long possible technically have lowest rate sinkor best model liftto-drag [LID] ratio Second maximum duration model must climb fast steeply possible gain maximum altitude during limited power run best rate climb standpoint aerodynamics involved two goals opposites thus requiring careful consideration can achieve both goals simultaneously can hope complementary factors can used ultimate design compromises will detract greatly either goal cant have cake eat too lowest sink rate comes greatest amount lift However lift production equates drag drag major adversary rate climb So have immediate need compromise best answer could get much lift possible sources would increase drag least new force arrangement will follow such path UNLEASH POWER WITHIN h DIESELIZE its AWESOME Bigger Engine Won t Fit MORE POWER Typical 45 Will Turn 13-6 Over 10000 Get 3 Mm Oz & Idle Well Below 2000 BIGGER PROPS COOL RUNNING LESS NOISE NO GLOWPLUGS LOW IDLE Largest Producer Model Diesel Fuels Call 203 877-1670 send 75 stamped #10 SASE & $200 Davis Diesel Development ox 141 ord CT 06460 World Leader Model Diesel Technology Since 1975 ll Today Dealer Inquiries Welcome models available weigh both gins cc ozs High accuracy guaranteed tare have strain gage transducers Whether build indoor models big birds between have scale Send #10 SASE brochure Discount prices $9900 up $24750 Includes AC adaptor UPS 1 yr warrantee Champion Model Products 880 Carmen Court La Verne CA 91750 909 599-3348 March 1993 137 Ask Original ffI LUflcfleI Pit CrwTM VWSWADAkOAWI nchr CuI 5EiEih Lancelot Ft Impa WA OBEiC j fO5] 785-8451 foam ask.
Edition: Model Aviation - 1993/03
Page Numbers: 56, 57, 134, 135, 136, 137
Dr. D B Mathews FUN EXPLOSION Golly what great year 1992 fly-ins least sure area Out curiosity just looked through mileage records attended 14 events 23-week span between May 9 October 18 within four-hour drive home did attend three other events because obvious wind going too strong events noncompetitive course Anyone also attended SAM Quickie 500 pattern competitions area would have road weekend Never memory have seen anything like fly-ins held over country weekend attendance exploding As matter fact several activities have outgrown available flying facilities IMAA event drew models pit area overfilled necessitating double rowing parked models Several flyins swamped local volunteers badly people members club pitch flight line inspection frequency control chores Im sure what causing explosion noncompetitive flyins sure delight see folks having really good time arent fly-ins give some serious thought next flying season arent going judged anything smile come Fly Fun What Naturally mail often contains contest etc announcements Id like promote thats obviously impossible However once pushes humor button Let share outlandish announces second annual Cuckoo Challenge Lo behold isnt some flight copywriters fancy actually Cuckoo Virginia happy folks held combination AMA- SAM-rules smallfield free flight event August 22-23 1992 Refreshments served Paupers Ridge snack bar am making up second important thing Almost everyone agrees first supplemental device needed after purchasing basic radio system expanded-scale volt meter ESV suggest second most-needed device fast field cbarger FFC gadget can remain flying field recharge radios batteries car battery used starter Most us around use Ace R/C unit since has sensor detects full charge shifts trickle mode other brands Im sure Incidentally avoid units used RC cars voltage amp cutoffs matched model-flying parameters An FFC helps avoid disaster caused classic meters red can get flight syndrome also prevents forgot charge up after last week error make occasionally device just flat-dabbed indispensable us As matter fact 1 give up either ESV FEC Id choose give up ESV gyros Remember RC gyrocopter photos information included Flying Fun year ago got started some information material supplied Charles Beck built using plans supplied him friend Australia first sent copies drawings interested readers learned kit produced England DB Models wishing steal something owner David Boddington started advising readers correct source England Boddington did answer inquiries 56 Model Aviation u FrF 909 N Maize Road Townhouse 734 Wichita KS 76212 John Walkers stock kit wniz 40 powered K&B 45 Sportster model will fly slower walking speed yet its capable consecutive snap rolls full throttle columnists Micropro transmitter full-scale Anderson Greenwood Doc says looks like nice subject modeling Rubber Ducky antenna now Note dihedral good gear location Paul Matt three-views available available replacement unit have unable verify whether DB Models still exists appeared put whole situation limbo Now along comes Peter H Johnson Walton Hills Ohio information will make possible others build fly wayout-of-the-mt models Peter has discovered Gyrace later design Boddington published construction article RCM&E some years ago drawings available Bob Holman Plans see ad issue plan number RC 1553 youre consider ordering Model Aircraft Plan Book illustrates hundreds free flight control line RC construction plans have published England over years Johnson says model will loop roll hover fly backward breeze 25-in rotors 26-in centers 50 negative pitch Power 05 25 FSR Frankly Gyrace attractive DB Models gyro anyway build Looks like true Flying Fun project Now tell As previously related column spent huge amount time developing trainer Ace RIC stumbled about trying several airfoil variations etc finally concluded moderately thick semisymmetrical airfoil superior traditional flat-bottom section calmest wind conditions As often case discovery original just thought Ted Off Ventura California recently sent copies series columns written way back 1981 RCM&E England Peter Russell life certainly would have simpler seen Russells material Above Astro Flight 90 motor installed Big Bingo swings 16 x 8 prop 8 10 minutes 32-cell 2500-mAh battery pack Left Completed model covered Coverites 21st Century Fabric Lightweight fiberglass gear replaced kits heavy-duty aluminum unit before beginning trainer project familiar Peter Russell considered preeminent authority modeling matters England English-speaking world essentially Bill Winter Ken Willard Europe Im going quote sections columns Russell wrote September 1981 December 1981 May 1982 issues RCM&E have done lot experimenting matching aerofoils aeroplanes have come conclusion plain straightforward symmetrical wing between 10 15% thickness located about 35% chord takes lot beating practically powered model aircraft March 1993 57 Top Left Bob Benjamins Electric Big Bingo uncovered kits ruggedness enabled Bob safely lighten structure Continued page 134 Peter Johnsons Gyrace RCM&E plan #1553 available E4. 0 howell New Jersey eniargea iiannan iringies through Bob Holman Plans Powered OS 25 FSR Wonder 13-in span Ed calls model Wired Wonder Its model will loop roll hover fly backwards breeze powered tiny Ken Basset geared electric motor unit Wegner D L Wehrly Herb Weinberg David M Weir Harvey E Welsh John E Werner Frank H West Larry 0 Wewer Dennis D Wheaton Kenith R Wheeler Roger Wheeler Charles D Whitcomb Donald E White Thomas White Rowland S Whiteman Paul E Wible Ray M Wickham Kirk R Wicklund G B Wikiund Everett Wilkins Hugh W Wilkinson Francis Williams Rex Williams Capt Dale Willoughby Usmc David E Wilson John D Windmiller Juergens 0 Winkler Ross H Wise James W Witte Donald J Wiwczar Edward N Wolf Robert R Wolfarth George L Wolfe Irving Wolk Irving Wolk Irving Wolk Todd J Wolt James E Womack Lester Woodin Alfred C Woodward Norman E Worsley II Wilma Wright Leon H Wysong Palmer L Yale John J Yankura Ronald W Yawn F R Yoho Alwin Yoshimoto Jack Young Jack D Young Ted J Young Bradley F Yuhas Robert J Zent Randy J Zezulka Donald A Ziemer Shane F Zikmund Stanley T Zimmerman Bill Zimmermann Robert F Ziotkowski ng FunlMathews Continued page 57 say because symmetrical section although lifting capability less cambered section drag pitching moment due angle attack variation later point makes particularly suitable trainers traditional flat-bottom section used trainers since year dot gives very little improvement lift Most flat-bottom sections will also pitch sensitive tending produce twitchy model would normal symmetrical section well-rounded nose Now didnt make suggestion spur moment capacity chief test pilot flying instructor modelers part world falls visaBJrn/c ELECTRONICS rif-izrk XXS SERVOS etc FOR OLDER RADIO UPDATES WE HAVE OVER 26 YEARS EXPERIENCE IN &C AT WE 1466 windward dr mason ohio 45040 ph 513 398-5423 lot fly kind model can imagine trainers imagine last few years have flown just about kind trainer known man seem pretty easy often wonder anywhere near ideal purpose intendedthat teaching complete beginners fly Several years ago several us got together see couldnt make better trainer basic layout trainers good though lot feature short nose makes difficult get CC center-of-gravity far enough forward Since trainers have near-universal wing about 54-inch span 8-inch chord addition two wings made flat bottomed 12% symmetrical also able try wings borrowed number proprietary trainers results subsequent test-flying proved conclusively model symmetrical wing section handled better others difference flying stalling speed between flat-bottom sections symmetrical ones quite immeasurable much pilots test programme unable say just flying model straight level wing flying Only after tossing about bit able make accurate guesses likely based handling rather speed flat-bottomed constant chord wing about 61 aspect ratio no washout can very nasty rearward CC symmetrical section wing same dimensions gives superior handling Incidentally yet another point favor advocacy symmetrical wing sections sport trainer models might have overlooked symmetrical section has center-of-pressure travel moves little varying angles attack whereas typical flat bottom section nearly universal type model will have center-ofpressure location varies between 70% chord 20 nose up 27% approaches stall So itself creates destabilising effect will make CC location critical comparison figures symmetrical nearly symmetrical plot airfoils dot matrix printer wIth FOILED_AGAIN! PLOT AIRFOILS IN ANY CHORD UP TO 24 INCHES MODIFY THICKNESS CAMBER & TRAILING EDGE PLOT SKIN THICKNESS FOR SHEETED WINGS ENTER DATA EASILY VIA INTELLIGENr EDITOR USER-FRIENDLY MENU-DRIVEN OPERATION INCLUDES 50 AIRFOIL FILES 26-PAGE USER MANUAL CA nhldeirO $45oo 05. oders pits mc Idrntiofi brk riflO US$55 lbqdres OMPCfliTAT copUibie romtr sod dot 855 pourS. Give SOpsSsr p55. 5758 8068 odtS sperifr SiS 33 diSks 5855 chck o wsq cod So CYGNET Software619 792-8021 3525 Del Mar Heights #237b San Diego 92130 134 Model Aviation PING & HANDLING ups Ground Continental us $495 ups Air & Parcel Post $495 plus 10% Subtotal Continental us ups Next Day Air $t400 plus $100 per lb Shipment total COD add $395 Foreign Orders Parcel Post Air $495 Subtotal u S Mail $4 95 plus 10% Subtotal mm mm OUTSIDE Ci section would about 32% 00 nose up approaching stall maximum variation 230 other words center pressure shift 9% chord compared 43% flat-bottomed wing section wish Id known experiments conclusions can add messing about also clearly illustrates much better pitch stability tracking wind symmetrical section used high-wing lightly loaded low-powered model airplane Unfortunately because prejudiced attitude favors flat-bottomed sections trainers experts unable give concept fair try truly rather sad since experts have mentally relegated outstanding trainer secondairplane sport-flier role building designed writer reduced dihedral another lowered wing incidence review models Back doing product reviews magazines Art Schroeder editor MAN years gave excellent piece advice Art told reader review interested would have designed kit wants know kit builds flies designed write up own personal modifications manufacturers product youre doing review youre doing construction article Bob Benjamins Big Bingo Higginsville June Float Fly call came Washingtonian Bob Benjamin expressing interest setting up Big Bingo prototype Astro Flite 90 electric motor asked talk Bob about perceptions concerning project very delightful conversation ensued Frankly initial reaction Youve got kidding after talking Bob learning bit project sounded less less far out Bobs knowledge electric flying well documented quickly concluded anyone could successfully set up electric power model size fellow Essentially needed reduce bare airframe weight about additional UNIVERSAL STRAP ON P OldV enginOs wmout mLJfflef DoltS 29-45 iT- 40P 52195 51-61 JT-ROP 52395 MOSS U 51 CSo p 25 50 51-61 $2496 MAIL ORDER Please add $250 UPS shipping Check MO Visa MC COD accepted Add $400 extra COO California residents add 8% sales tax weight needed 32-cell 2500-mAh battery pack informed electric motor weighed less 120 stroker its fuel concluded substituting balsa wing leading edge tail feathers using Klett fiberglass landing gear found Ace R/C 4-120 kit elim inating some light ply kits fuselage forward areas no vibration control problems electric Big Bingo could built within required weight parameters give some power comparison numbers between Astro 90 usual four-cycle 120 wet power plant Bob found electric unit would turn 16 x 8 prop 7000 rpm drawing 30 amps As know terribly far sort numbers reads 120 stroker Benjamin has written about project interesting article recent issue Model Builder magazine heartily recommend 32-cell 2500-mAh battery pack Big Bingo weighs 18 poundsabout four usual Big Bingo Using reworked 18 x 6 prop overall thinning cutting slight undercamber airplane breaks ground after run about 100 feet none-too-smooth grass field Bob says though Big Bingo doesnt fly particularly fast will climb surprisingly well determined possible maintain 300 climb angle takeoff maintain long desired Rolls slow positive Loops slow solid stall turns quite crisp Low-speed handling no problem extra weight moderately high wing loading make Electric Bingo pleasure fly land wind 2500 pack flight duration order seven eight minutes Bob has certainly proven feasibility electric power large models would think large designs specifically tailored lowered vibration levels electric power viable solution fly areas noise problem Congratulations Bob opening up exciting new way Fly Fun other hand Longtime pen pal Dick Gibbs has extolling fun found 10-A-il P 1sr40 JT-M1051 rnsx 11-51590 1551255 iT-MU 100 lrwlzor ASP 111552995 POt 742995 MAO 9110020911 MAX scsi3491 51 l551.902991 55 253000-1531 MOKI 111iSO CEIIRA 12021191 irn 4511 AU m March 1993 135 Pitts-Style Mufflers UNIVERSAL BOLT ON Foe SIde motilsed engInes Will fIt 90% engInes made attN 1989 Easy atd-l Just bolt muMMer 50 nglne WIth factory muffler bolts xr bolts supolied wIth muffler 29 JT 40P8 45 $22 95iT 6OPR Exhaust extensIons worm drIve arid moIziting waD - Induded What works foam WIRE uar4un BENDS AND FORMS WiRE AND STRIPS OF METAL IN ANGLES CURVES LOOPS ETC No WB100 $400 SUUARE PUNCH SEt CUTS SQUARES AND SLOTS SET INCLUDES SIZES 1/B 3/16 1/4 5/163/5 MADE FROM NICKEL PLATED STEEL No SPS5 $1200 BRUSHES 3 PCS MINLATURE WIRE BRUSH BET ONE EACH BRASS NYLON STAINLESS MWB3 $300 T-PINS 1 1/4 100 PACK TP1 4 $200 ZONA SAWS iSO42 TEETH 3145230 20032 TEETH 3/4230 250MTTRE BOX250 450 LONG & SHORT BLADE 260 500 1 1/4 WIDE 270 BOO ZONA HAKA JUNIOR HACKSAW 165 DRILL SETS FIRST OUAUTY HIGH SPEED STEEL ALL SETS SUPPUED IN CASE 2S1ES-1/1B301/4 sIlSP14 400 2S100A 102 01-0055 MOST POPULAR D5153No 11060 B0pcSS1BBO 05154-NoBi I060I2OpC-1200 NEEDLE FILE SET 51/2- 12SHAPES PLASTIC HANDLE WITh EACH FILE GREAT ON WOOD PLASTIC METAL No NFSI01 -$500 INDUSTRIAL OUALITY X-TRA HEAVY DUTY 12 SHAPE 4 LONG $650 NG $600 DREMEL 3950 TOP OP THE LINE MOTO POWER TOOL SET INCLUDES 40 ACCESSORIES AND CASE No 3950 $7000 VRUSHE MADE IN USA 13/PACK NoEB12- $100 Doz No EB144 -$700 Gross PIN VISE STAINLESS STEEL-S TO 1/B CAP PV4 4-LONG-$4oo PV6 B LONG 600 PV1O-10-LONG- 800 FY15 -15- LONG -1000 PV614- 0 1/4 Capacity $600 TUBE CUTTER 1/5 TO S/B CAPACITY HEAVY DUTY MADE PROM SEMI-STEEL No TC58 -$400 HOBBY KNIFE BLADES No11 MADE IN USA 105 PACK NoHKBl 1- $650 SINGLE EDGE BLADES MADE IN USA FIRST OUAUTY NO9100 PACK NoSEB1O2 $450 HEAVY DUTY NO11 FIRST OUALITY 100 PACK .a SEBlOl ouu Z PLIERS MAKES PERFECT Z BENDS WITH SOUEEZE NoZPL $1650 LONG DRILLS FIRST OUALITY- HIGH SPEED STEEL1/16 1/8 12 LONG18 LONG5132 3/1 6 1/4 LG1 1/16 $450 LG6 3/16 $1500 .d 1/6450LG7 7/32 1500 I12 LONG LG3 5/32450LGS 1/4 1500 4 3/16450 LGS 1/4550 CUTrING MATS HEALS ITSELF AFTER EACH CUT AND SURFACE STAYS SMOOTH NONGLARE GREEN FINISH CUT ON BOTH SIDES CM8 9 x 12 $1000 CM12 12 x 18 1500 HELPING HAND FIRST OUALITY THREE ARMS 2 ARMS WITH ALLIGATOR CLIPS 1 ARM WITH 25 GLASS 2 1/2 MAGNIFIER HH1 -$700 NORTH WESTERN CHOP SAW MA5S PERFECT MITRE CUTS 50 45 N WOOD OR PLASTIC JSES SINGLE EDGE BLADE STOP NCS -1450 T-BAR srhLJn ALUMINUM MADE IN USA Til 11LONG $230 T22 22 LONG $350 SANDPAPER RUFFTUFF ADHESIVE SACK $1OSE& ISPECIFYFINEIRSFI MEDIUM IRSM OP COAPEF IRSCl ELECTRONIC CALIPER 1ST INDUSTRIAL OUALITY READS IN INCHES AND METRIC 0-6-0- 155MM EC6 $5500 DiAL-CALIPER _____________________WHEN ORDERINU 1ST INDUSTRIAL QUALITY P RD ADD $300 0-6 100 SINGLE REVOLUTION EASTERN TOOL&SUPPLYCO COD ADD$750 GRAD IN 001 149 GRAND STREET NEW YORK NY 10013 ORDERS 212-925-1006 SASH CHROME FINISH WRITE FOR CATALOG $3 00- OR FREE WITH ORDER CE 212-226-3749 ITH FITTED CASE FAX 212-925-1010DC6 $2100 COMET LING ELAND VICTOR STANZEL EST ER MBECKER VK 2 00 0 4 CO UJ UJ IS 0 Iw B 00 0 00 LU I- z UJ LU 00 0 K LU 00 LU Co 0 z 0 C 23 2 Co C 23 C 2 Co 0 0 C 0 z CS 0 0 2 -4 m C 23 o Co 0 C m C 23 2 0 -I m C C BAY RIDGE NTIFIC LESS L ICAN JUNIOR ONE T CARMEL T PLANES Composites rglass experts video shows describes easy use composites construct basic lamination 1993 catalog included $5-off coupon towards first order Approximately 60 minutes Only $2495 plus $450 shipping handling ____ e Development 800 821 tiny electric free flight models bimonthly Flying Models column years increasing availability very small electric power plants responsiblenot mention appealing simplicity no gumbands CO2 cartridges Ed Toner Howell New Jersey has bitten little electric bug sent photos enlarged Bill Hannans Stringless Wonder Power tiny Ken Basset geared electric unit Ed calls model Wired Wonder Charging done ELF-Flyer Charger handy little hand-held device holds four C cells Ed doesnt use charging jack switch just uses small alligator clips directly protruding copper points motor 50-second charge yields 100-second runs full power plus 20 seconds decreas ing transitional power Eight times between two three minutes dead air previous attempt design failure Ed used original Hannan 10-inch version small Comet plastic prop says thing zipped along really high speeds wouldnt climb new version uses 60 downthrust original Ed speculates geared Basset unit would fly Bostonian rubber design authority leads suggest use tiny Units indoor models Wouldnt barrel fun9 Darts stuff As may recall got lost topic CulverlDriggs Dart full-scale aircraft several months ago case readers have interest Driggs Dart super set two-inchto-the-foot three-view-type drawings available B2 Streamlines PO Box 976 Olalla WA 98359 model construction drawings superbly detailed full-scale aircraft suitable adding details existing model same firm has long list exciting unusual gliders such construction plan form Write B2 Streamlines catalog Along Culver Dart trail Fran Ptaszkiewicz deBolt Bipe included Octobers Flying Fun sent along photo Culver Dart spotted Niagara Falls Air Show 1982 also sent along Anderson Greenwood photo since plane next Dart As likely know superb Paul Matt three-views Anderson available hasnt someone modeled really different eminently buildable prototype have availability fiberglass fuselage would present few challenges thing sure looks like good RC free flight subject Some new stuff short little flexible rubber antenna shown transmitter prototype Ace RIC Ive using since May 1992 other pilots have 136 Model Aviation berg. Walker. Taibi. deBolt recognize names youre gonna love DO YOU SPEAK MODEL AIRPLANE Its Dave Thomburgs conctse witty history U S aeromodeling twin pusher ugliest Stik its volume heroes models clubs kitmakers laid groundwork todays hobby-sport Order copy now Money back bores 2 320 pages paperback $1995 ACE SIG dealer postpaid Pony X Press 5 Monticello Drive Albuquerque NM 87123 Phone 505 299-8749 Cash Check MO Visa-Mastercard Still available Thornburgs OLD BUZZARDS SOARING BOOK 5 pp testing longer Ive flown about conceivable environment often four other models air same timewithout single problem As guy crashed Big Bingo transmitter antenna broke off flightnot mention time stuck regular antenna pusher propI can really appreciate unit Additionally unless fly knees theres no way drag ground Rubber Ducky antenna available replacement unit Ace transmitters perhaps other brands Contact factory information Its amazing often Ive other fliers PA announcers get excited think Im flying antenna retracted Myron Pickard Fiberglass Master see ad issue now has accessory cowl available Big Bingo unit designed enclose inverted Zenoab Quadra gas burner tapers 3/2- spinner Looks really neat Finally fly-ins perfect flying weather have caused get seriously behind correspondence stack make effort answer letters include SASEsooner later Unfortunately year its later Ill get done As always need send photos unusual model aircraft subject should exclusive magazine mean anything ModelldeBolt Continued page 53 yet find way improve process doing will also come understand what makes tick should see flight performance goal twofold First stay up long possible technically have lowest rate sinkor best model liftto-drag [LID] ratio Second maximum duration model must climb fast steeply possible gain maximum altitude during limited power run best rate climb standpoint aerodynamics involved two goals opposites thus requiring careful consideration can achieve both goals simultaneously can hope complementary factors can used ultimate design compromises will detract greatly either goal cant have cake eat too lowest sink rate comes greatest amount lift However lift production equates drag drag major adversary rate climb So have immediate need compromise best answer could get much lift possible sources would increase drag least new force arrangement will follow such path UNLEASH POWER WITHIN h DIESELIZE its AWESOME Bigger Engine Won t Fit MORE POWER Typical 45 Will Turn 13-6 Over 10000 Get 3 Mm Oz & Idle Well Below 2000 BIGGER PROPS COOL RUNNING LESS NOISE NO GLOWPLUGS LOW IDLE Largest Producer Model Diesel Fuels Call 203 877-1670 send 75 stamped #10 SASE & $200 Davis Diesel Development ox 141 ord CT 06460 World Leader Model Diesel Technology Since 1975 ll Today Dealer Inquiries Welcome models available weigh both gins cc ozs High accuracy guaranteed tare have strain gage transducers Whether build indoor models big birds between have scale Send #10 SASE brochure Discount prices $9900 up $24750 Includes AC adaptor UPS 1 yr warrantee Champion Model Products 880 Carmen Court La Verne CA 91750 909 599-3348 March 1993 137 Ask Original ffI LUflcfleI Pit CrwTM VWSWADAkOAWI nchr CuI 5EiEih Lancelot Ft Impa WA OBEiC j fO5] 785-8451 foam ask.
Edition: Model Aviation - 1993/03
Page Numbers: 56, 57, 134, 135, 136, 137
Dr. D B Mathews FUN EXPLOSION Golly what great year 1992 fly-ins least sure area Out curiosity just looked through mileage records attended 14 events 23-week span between May 9 October 18 within four-hour drive home did attend three other events because obvious wind going too strong events noncompetitive course Anyone also attended SAM Quickie 500 pattern competitions area would have road weekend Never memory have seen anything like fly-ins held over country weekend attendance exploding As matter fact several activities have outgrown available flying facilities IMAA event drew models pit area overfilled necessitating double rowing parked models Several flyins swamped local volunteers badly people members club pitch flight line inspection frequency control chores Im sure what causing explosion noncompetitive flyins sure delight see folks having really good time arent fly-ins give some serious thought next flying season arent going judged anything smile come Fly Fun What Naturally mail often contains contest etc announcements Id like promote thats obviously impossible However once pushes humor button Let share outlandish announces second annual Cuckoo Challenge Lo behold isnt some flight copywriters fancy actually Cuckoo Virginia happy folks held combination AMA- SAM-rules smallfield free flight event August 22-23 1992 Refreshments served Paupers Ridge snack bar am making up second important thing Almost everyone agrees first supplemental device needed after purchasing basic radio system expanded-scale volt meter ESV suggest second most-needed device fast field cbarger FFC gadget can remain flying field recharge radios batteries car battery used starter Most us around use Ace R/C unit since has sensor detects full charge shifts trickle mode other brands Im sure Incidentally avoid units used RC cars voltage amp cutoffs matched model-flying parameters An FFC helps avoid disaster caused classic meters red can get flight syndrome also prevents forgot charge up after last week error make occasionally device just flat-dabbed indispensable us As matter fact 1 give up either ESV FEC Id choose give up ESV gyros Remember RC gyrocopter photos information included Flying Fun year ago got started some information material supplied Charles Beck built using plans supplied him friend Australia first sent copies drawings interested readers learned kit produced England DB Models wishing steal something owner David Boddington started advising readers correct source England Boddington did answer inquiries 56 Model Aviation u FrF 909 N Maize Road Townhouse 734 Wichita KS 76212 John Walkers stock kit wniz 40 powered K&B 45 Sportster model will fly slower walking speed yet its capable consecutive snap rolls full throttle columnists Micropro transmitter full-scale Anderson Greenwood Doc says looks like nice subject modeling Rubber Ducky antenna now Note dihedral good gear location Paul Matt three-views available available replacement unit have unable verify whether DB Models still exists appeared put whole situation limbo Now along comes Peter H Johnson Walton Hills Ohio information will make possible others build fly wayout-of-the-mt models Peter has discovered Gyrace later design Boddington published construction article RCM&E some years ago drawings available Bob Holman Plans see ad issue plan number RC 1553 youre consider ordering Model Aircraft Plan Book illustrates hundreds free flight control line RC construction plans have published England over years Johnson says model will loop roll hover fly backward breeze 25-in rotors 26-in centers 50 negative pitch Power 05 25 FSR Frankly Gyrace attractive DB Models gyro anyway build Looks like true Flying Fun project Now tell As previously related column spent huge amount time developing trainer Ace RIC stumbled about trying several airfoil variations etc finally concluded moderately thick semisymmetrical airfoil superior traditional flat-bottom section calmest wind conditions As often case discovery original just thought Ted Off Ventura California recently sent copies series columns written way back 1981 RCM&E England Peter Russell life certainly would have simpler seen Russells material Above Astro Flight 90 motor installed Big Bingo swings 16 x 8 prop 8 10 minutes 32-cell 2500-mAh battery pack Left Completed model covered Coverites 21st Century Fabric Lightweight fiberglass gear replaced kits heavy-duty aluminum unit before beginning trainer project familiar Peter Russell considered preeminent authority modeling matters England English-speaking world essentially Bill Winter Ken Willard Europe Im going quote sections columns Russell wrote September 1981 December 1981 May 1982 issues RCM&E have done lot experimenting matching aerofoils aeroplanes have come conclusion plain straightforward symmetrical wing between 10 15% thickness located about 35% chord takes lot beating practically powered model aircraft March 1993 57 Top Left Bob Benjamins Electric Big Bingo uncovered kits ruggedness enabled Bob safely lighten structure Continued page 134 Peter Johnsons Gyrace RCM&E plan #1553 available E4. 0 howell New Jersey eniargea iiannan iringies through Bob Holman Plans Powered OS 25 FSR Wonder 13-in span Ed calls model Wired Wonder Its model will loop roll hover fly backwards breeze powered tiny Ken Basset geared electric motor unit Wegner D L Wehrly Herb Weinberg David M Weir Harvey E Welsh John E Werner Frank H West Larry 0 Wewer Dennis D Wheaton Kenith R Wheeler Roger Wheeler Charles D Whitcomb Donald E White Thomas White Rowland S Whiteman Paul E Wible Ray M Wickham Kirk R Wicklund G B Wikiund Everett Wilkins Hugh W Wilkinson Francis Williams Rex Williams Capt Dale Willoughby Usmc David E Wilson John D Windmiller Juergens 0 Winkler Ross H Wise James W Witte Donald J Wiwczar Edward N Wolf Robert R Wolfarth George L Wolfe Irving Wolk Irving Wolk Irving Wolk Todd J Wolt James E Womack Lester Woodin Alfred C Woodward Norman E Worsley II Wilma Wright Leon H Wysong Palmer L Yale John J Yankura Ronald W Yawn F R Yoho Alwin Yoshimoto Jack Young Jack D Young Ted J Young Bradley F Yuhas Robert J Zent Randy J Zezulka Donald A Ziemer Shane F Zikmund Stanley T Zimmerman Bill Zimmermann Robert F Ziotkowski ng FunlMathews Continued page 57 say because symmetrical section although lifting capability less cambered section drag pitching moment due angle attack variation later point makes particularly suitable trainers traditional flat-bottom section used trainers since year dot gives very little improvement lift Most flat-bottom sections will also pitch sensitive tending produce twitchy model would normal symmetrical section well-rounded nose Now didnt make suggestion spur moment capacity chief test pilot flying instructor modelers part world falls visaBJrn/c ELECTRONICS rif-izrk XXS SERVOS etc FOR OLDER RADIO UPDATES WE HAVE OVER 26 YEARS EXPERIENCE IN &C AT WE 1466 windward dr mason ohio 45040 ph 513 398-5423 lot fly kind model can imagine trainers imagine last few years have flown just about kind trainer known man seem pretty easy often wonder anywhere near ideal purpose intendedthat teaching complete beginners fly Several years ago several us got together see couldnt make better trainer basic layout trainers good though lot feature short nose makes difficult get CC center-of-gravity far enough forward Since trainers have near-universal wing about 54-inch span 8-inch chord addition two wings made flat bottomed 12% symmetrical also able try wings borrowed number proprietary trainers results subsequent test-flying proved conclusively model symmetrical wing section handled better others difference flying stalling speed between flat-bottom sections symmetrical ones quite immeasurable much pilots test programme unable say just flying model straight level wing flying Only after tossing about bit able make accurate guesses likely based handling rather speed flat-bottomed constant chord wing about 61 aspect ratio no washout can very nasty rearward CC symmetrical section wing same dimensions gives superior handling Incidentally yet another point favor advocacy symmetrical wing sections sport trainer models might have overlooked symmetrical section has center-of-pressure travel moves little varying angles attack whereas typical flat bottom section nearly universal type model will have center-ofpressure location varies between 70% chord 20 nose up 27% approaches stall So itself creates destabilising effect will make CC location critical comparison figures symmetrical nearly symmetrical plot airfoils dot matrix printer wIth FOILED_AGAIN! PLOT AIRFOILS IN ANY CHORD UP TO 24 INCHES MODIFY THICKNESS CAMBER & TRAILING EDGE PLOT SKIN THICKNESS FOR SHEETED WINGS ENTER DATA EASILY VIA INTELLIGENr EDITOR USER-FRIENDLY MENU-DRIVEN OPERATION INCLUDES 50 AIRFOIL FILES 26-PAGE USER MANUAL CA nhldeirO $45oo 05. oders pits mc Idrntiofi brk riflO US$55 lbqdres OMPCfliTAT copUibie romtr sod dot 855 pourS. Give SOpsSsr p55. 5758 8068 odtS sperifr SiS 33 diSks 5855 chck o wsq cod So CYGNET Software619 792-8021 3525 Del Mar Heights #237b San Diego 92130 134 Model Aviation PING & HANDLING ups Ground Continental us $495 ups Air & Parcel Post $495 plus 10% Subtotal Continental us ups Next Day Air $t400 plus $100 per lb Shipment total COD add $395 Foreign Orders Parcel Post Air $495 Subtotal u S Mail $4 95 plus 10% Subtotal mm mm OUTSIDE Ci section would about 32% 00 nose up approaching stall maximum variation 230 other words center pressure shift 9% chord compared 43% flat-bottomed wing section wish Id known experiments conclusions can add messing about also clearly illustrates much better pitch stability tracking wind symmetrical section used high-wing lightly loaded low-powered model airplane Unfortunately because prejudiced attitude favors flat-bottomed sections trainers experts unable give concept fair try truly rather sad since experts have mentally relegated outstanding trainer secondairplane sport-flier role building designed writer reduced dihedral another lowered wing incidence review models Back doing product reviews magazines Art Schroeder editor MAN years gave excellent piece advice Art told reader review interested would have designed kit wants know kit builds flies designed write up own personal modifications manufacturers product youre doing review youre doing construction article Bob Benjamins Big Bingo Higginsville June Float Fly call came Washingtonian Bob Benjamin expressing interest setting up Big Bingo prototype Astro Flite 90 electric motor asked talk Bob about perceptions concerning project very delightful conversation ensued Frankly initial reaction Youve got kidding after talking Bob learning bit project sounded less less far out Bobs knowledge electric flying well documented quickly concluded anyone could successfully set up electric power model size fellow Essentially needed reduce bare airframe weight about additional UNIVERSAL STRAP ON P OldV enginOs wmout mLJfflef DoltS 29-45 iT- 40P 52195 51-61 JT-ROP 52395 MOSS U 51 CSo p 25 50 51-61 $2496 MAIL ORDER Please add $250 UPS shipping Check MO Visa MC COD accepted Add $400 extra COO California residents add 8% sales tax weight needed 32-cell 2500-mAh battery pack informed electric motor weighed less 120 stroker its fuel concluded substituting balsa wing leading edge tail feathers using Klett fiberglass landing gear found Ace R/C 4-120 kit elim inating some light ply kits fuselage forward areas no vibration control problems electric Big Bingo could built within required weight parameters give some power comparison numbers between Astro 90 usual four-cycle 120 wet power plant Bob found electric unit would turn 16 x 8 prop 7000 rpm drawing 30 amps As know terribly far sort numbers reads 120 stroker Benjamin has written about project interesting article recent issue Model Builder magazine heartily recommend 32-cell 2500-mAh battery pack Big Bingo weighs 18 poundsabout four usual Big Bingo Using reworked 18 x 6 prop overall thinning cutting slight undercamber airplane breaks ground after run about 100 feet none-too-smooth grass field Bob says though Big Bingo doesnt fly particularly fast will climb surprisingly well determined possible maintain 300 climb angle takeoff maintain long desired Rolls slow positive Loops slow solid stall turns quite crisp Low-speed handling no problem extra weight moderately high wing loading make Electric Bingo pleasure fly land wind 2500 pack flight duration order seven eight minutes Bob has certainly proven feasibility electric power large models would think large designs specifically tailored lowered vibration levels electric power viable solution fly areas noise problem Congratulations Bob opening up exciting new way Fly Fun other hand Longtime pen pal Dick Gibbs has extolling fun found 10-A-il P 1sr40 JT-M1051 rnsx 11-51590 1551255 iT-MU 100 lrwlzor ASP 111552995 POt 742995 MAO 9110020911 MAX scsi3491 51 l551.902991 55 253000-1531 MOKI 111iSO CEIIRA 12021191 irn 4511 AU m March 1993 135 Pitts-Style Mufflers UNIVERSAL BOLT ON Foe SIde motilsed engInes Will fIt 90% engInes made attN 1989 Easy atd-l Just bolt muMMer 50 nglne WIth factory muffler bolts xr bolts supolied wIth muffler 29 JT 40P8 45 $22 95iT 6OPR Exhaust extensIons worm drIve arid moIziting waD - Induded What works foam WIRE uar4un BENDS AND FORMS WiRE AND STRIPS OF METAL IN ANGLES CURVES LOOPS ETC No WB100 $400 SUUARE PUNCH SEt CUTS SQUARES AND SLOTS SET INCLUDES SIZES 1/B 3/16 1/4 5/163/5 MADE FROM NICKEL PLATED STEEL No SPS5 $1200 BRUSHES 3 PCS MINLATURE WIRE BRUSH BET ONE EACH BRASS NYLON STAINLESS MWB3 $300 T-PINS 1 1/4 100 PACK TP1 4 $200 ZONA SAWS iSO42 TEETH 3145230 20032 TEETH 3/4230 250MTTRE BOX250 450 LONG & SHORT BLADE 260 500 1 1/4 WIDE 270 BOO ZONA HAKA JUNIOR HACKSAW 165 DRILL SETS FIRST OUAUTY HIGH SPEED STEEL ALL SETS SUPPUED IN CASE 2S1ES-1/1B301/4 sIlSP14 400 2S100A 102 01-0055 MOST POPULAR D5153No 11060 B0pcSS1BBO 05154-NoBi I060I2OpC-1200 NEEDLE FILE SET 51/2- 12SHAPES PLASTIC HANDLE WITh EACH FILE GREAT ON WOOD PLASTIC METAL No NFSI01 -$500 INDUSTRIAL OUALITY X-TRA HEAVY DUTY 12 SHAPE 4 LONG $650 NG $600 DREMEL 3950 TOP OP THE LINE MOTO POWER TOOL SET INCLUDES 40 ACCESSORIES AND CASE No 3950 $7000 VRUSHE MADE IN USA 13/PACK NoEB12- $100 Doz No EB144 -$700 Gross PIN VISE STAINLESS STEEL-S TO 1/B CAP PV4 4-LONG-$4oo PV6 B LONG 600 PV1O-10-LONG- 800 FY15 -15- LONG -1000 PV614- 0 1/4 Capacity $600 TUBE CUTTER 1/5 TO S/B CAPACITY HEAVY DUTY MADE PROM SEMI-STEEL No TC58 -$400 HOBBY KNIFE BLADES No11 MADE IN USA 105 PACK NoHKBl 1- $650 SINGLE EDGE BLADES MADE IN USA FIRST OUAUTY NO9100 PACK NoSEB1O2 $450 HEAVY DUTY NO11 FIRST OUALITY 100 PACK .a SEBlOl ouu Z PLIERS MAKES PERFECT Z BENDS WITH SOUEEZE NoZPL $1650 LONG DRILLS FIRST OUALITY- HIGH SPEED STEEL1/16 1/8 12 LONG18 LONG5132 3/1 6 1/4 LG1 1/16 $450 LG6 3/16 $1500 .d 1/6450LG7 7/32 1500 I12 LONG LG3 5/32450LGS 1/4 1500 4 3/16450 LGS 1/4550 CUTrING MATS HEALS ITSELF AFTER EACH CUT AND SURFACE STAYS SMOOTH NONGLARE GREEN FINISH CUT ON BOTH SIDES CM8 9 x 12 $1000 CM12 12 x 18 1500 HELPING HAND FIRST OUALITY THREE ARMS 2 ARMS WITH ALLIGATOR CLIPS 1 ARM WITH 25 GLASS 2 1/2 MAGNIFIER HH1 -$700 NORTH WESTERN CHOP SAW MA5S PERFECT MITRE CUTS 50 45 N WOOD OR PLASTIC JSES SINGLE EDGE BLADE STOP NCS -1450 T-BAR srhLJn ALUMINUM MADE IN USA Til 11LONG $230 T22 22 LONG $350 SANDPAPER RUFFTUFF ADHESIVE SACK $1OSE& ISPECIFYFINEIRSFI MEDIUM IRSM OP COAPEF IRSCl ELECTRONIC CALIPER 1ST INDUSTRIAL OUALITY READS IN INCHES AND METRIC 0-6-0- 155MM EC6 $5500 DiAL-CALIPER _____________________WHEN ORDERINU 1ST INDUSTRIAL QUALITY P RD ADD $300 0-6 100 SINGLE REVOLUTION EASTERN TOOL&SUPPLYCO COD ADD$750 GRAD IN 001 149 GRAND STREET NEW YORK NY 10013 ORDERS 212-925-1006 SASH CHROME FINISH WRITE FOR CATALOG $3 00- OR FREE WITH ORDER CE 212-226-3749 ITH FITTED CASE FAX 212-925-1010DC6 $2100 COMET LING ELAND VICTOR STANZEL EST ER MBECKER VK 2 00 0 4 CO UJ UJ IS 0 Iw B 00 0 00 LU I- z UJ LU 00 0 K LU 00 LU Co 0 z 0 C 23 2 Co C 23 C 2 Co 0 0 C 0 z CS 0 0 2 -4 m C 23 o Co 0 C m C 23 2 0 -I m C C BAY RIDGE NTIFIC LESS L ICAN JUNIOR ONE T CARMEL T PLANES Composites rglass experts video shows describes easy use composites construct basic lamination 1993 catalog included $5-off coupon towards first order Approximately 60 minutes Only $2495 plus $450 shipping handling ____ e Development 800 821 tiny electric free flight models bimonthly Flying Models column years increasing availability very small electric power plants responsiblenot mention appealing simplicity no gumbands CO2 cartridges Ed Toner Howell New Jersey has bitten little electric bug sent photos enlarged Bill Hannans Stringless Wonder Power tiny Ken Basset geared electric unit Ed calls model Wired Wonder Charging done ELF-Flyer Charger handy little hand-held device holds four C cells Ed doesnt use charging jack switch just uses small alligator clips directly protruding copper points motor 50-second charge yields 100-second runs full power plus 20 seconds decreas ing transitional power Eight times between two three minutes dead air previous attempt design failure Ed used original Hannan 10-inch version small Comet plastic prop says thing zipped along really high speeds wouldnt climb new version uses 60 downthrust original Ed speculates geared Basset unit would fly Bostonian rubber design authority leads suggest use tiny Units indoor models Wouldnt barrel fun9 Darts stuff As may recall got lost topic CulverlDriggs Dart full-scale aircraft several months ago case readers have interest Driggs Dart super set two-inchto-the-foot three-view-type drawings available B2 Streamlines PO Box 976 Olalla WA 98359 model construction drawings superbly detailed full-scale aircraft suitable adding details existing model same firm has long list exciting unusual gliders such construction plan form Write B2 Streamlines catalog Along Culver Dart trail Fran Ptaszkiewicz deBolt Bipe included Octobers Flying Fun sent along photo Culver Dart spotted Niagara Falls Air Show 1982 also sent along Anderson Greenwood photo since plane next Dart As likely know superb Paul Matt three-views Anderson available hasnt someone modeled really different eminently buildable prototype have availability fiberglass fuselage would present few challenges thing sure looks like good RC free flight subject Some new stuff short little flexible rubber antenna shown transmitter prototype Ace RIC Ive using since May 1992 other pilots have 136 Model Aviation berg. Walker. Taibi. deBolt recognize names youre gonna love DO YOU SPEAK MODEL AIRPLANE Its Dave Thomburgs conctse witty history U S aeromodeling twin pusher ugliest Stik its volume heroes models clubs kitmakers laid groundwork todays hobby-sport Order copy now Money back bores 2 320 pages paperback $1995 ACE SIG dealer postpaid Pony X Press 5 Monticello Drive Albuquerque NM 87123 Phone 505 299-8749 Cash Check MO Visa-Mastercard Still available Thornburgs OLD BUZZARDS SOARING BOOK 5 pp testing longer Ive flown about conceivable environment often four other models air same timewithout single problem As guy crashed Big Bingo transmitter antenna broke off flightnot mention time stuck regular antenna pusher propI can really appreciate unit Additionally unless fly knees theres no way drag ground Rubber Ducky antenna available replacement unit Ace transmitters perhaps other brands Contact factory information Its amazing often Ive other fliers PA announcers get excited think Im flying antenna retracted Myron Pickard Fiberglass Master see ad issue now has accessory cowl available Big Bingo unit designed enclose inverted Zenoab Quadra gas burner tapers 3/2- spinner Looks really neat Finally fly-ins perfect flying weather have caused get seriously behind correspondence stack make effort answer letters include SASEsooner later Unfortunately year its later Ill get done As always need send photos unusual model aircraft subject should exclusive magazine mean anything ModelldeBolt Continued page 53 yet find way improve process doing will also come understand what makes tick should see flight performance goal twofold First stay up long possible technically have lowest rate sinkor best model liftto-drag [LID] ratio Second maximum duration model must climb fast steeply possible gain maximum altitude during limited power run best rate climb standpoint aerodynamics involved two goals opposites thus requiring careful consideration can achieve both goals simultaneously can hope complementary factors can used ultimate design compromises will detract greatly either goal cant have cake eat too lowest sink rate comes greatest amount lift However lift production equates drag drag major adversary rate climb So have immediate need compromise best answer could get much lift possible sources would increase drag least new force arrangement will follow such path UNLEASH POWER WITHIN h DIESELIZE its AWESOME Bigger Engine Won t Fit MORE POWER Typical 45 Will Turn 13-6 Over 10000 Get 3 Mm Oz & Idle Well Below 2000 BIGGER PROPS COOL RUNNING LESS NOISE NO GLOWPLUGS LOW IDLE Largest Producer Model Diesel Fuels Call 203 877-1670 send 75 stamped #10 SASE & $200 Davis Diesel Development ox 141 ord CT 06460 World Leader Model Diesel Technology Since 1975 ll Today Dealer Inquiries Welcome models available weigh both gins cc ozs High accuracy guaranteed tare have strain gage transducers Whether build indoor models big birds between have scale Send #10 SASE brochure Discount prices $9900 up $24750 Includes AC adaptor UPS 1 yr warrantee Champion Model Products 880 Carmen Court La Verne CA 91750 909 599-3348 March 1993 137 Ask Original ffI LUflcfleI Pit CrwTM VWSWADAkOAWI nchr CuI 5EiEih Lancelot Ft Impa WA OBEiC j fO5] 785-8451 foam ask.