Control Line SCALE Bill Boss CL ELECTRIC SERVO SYSTEM Part II last months column covered con struction systems switch box its wir ing attachment G-S Roberts control handle month will show modify servos electric-only operation control speed servos give some suggestions insulate control lines control handle planes control system control box item have talked about yet use 50-200 ohm resistor shown wiring sketch will cover its use talk about overall system oper ation later text Servos servos used system standard RC servos electronics removed case system shown servos modified used Ed Jacoby Futaba system no longer uses Modification servos easily accomplished removing screws usually four hold lower portion servo case place lower half case removed electronics servo motor should view has done remove electronics unsolder two three wire connections Plus Minus possibly Ground motor sure use low-wattage soldering iron 25-45 watts working servo leads too much heat may cause damage either servo motor electronics being removed electronic unit removed re connect new leads 8-10 long Plus Minus terminals servo motor pass through servo case rubber grom met reinstall lower half servo case suggest use same color wire say red Plus leads black Minus leads Note using colored wire will help eliminate confusion about leads Plus Minus making con nections PC board servos used complete proceed wire piece PC board shown wiring drawing included last months column After ser vos wired PC board will have add four leads will used make connection control lines wing tip length leads will de pend size models wing Warning use stranded wire leads because withstands vibration much better solid wire dont want install servos complete plane after two flights find something doesnt work due broken wire inside plane have explained modify complete working RC servo other approach providing servo system might want explore look ing through some RC supply catalogs will find companies such Litco Ace RC have available parts servo cases mechanics motors can purchased separately used assemble servos needed project Pur chasing servo parts manner no electronics will reduce cost servos project 30% 40% Control lines Now have completed control handle switch-box servo units lets look line construction con nection control handle models servo units nothing special about basic make-up control lines other fact will made sulated line have determined overall length lines simply follow line-construction procedures outlined Continued page 160 Heres make heavy-duty control line Insulator shown other photo Theres Information column 66 Model Aviation roibo Two types OT line Insulators upper although simple shouldnt used models needing 40-lb pull-test lower Insulator handmade nylon block has used reliably models needIng pull-tests over 80 lb Control lines must insulated too 16 I- - 1~WLP-L~L~NO52 DRILL HOLE16 2 3 _______________ 4 NYLON INSULATING LINE CONNECTOR ILZUZL 861 Isunt RoadSan Antonio TX 78216 512 341-6712 FUTABA 7FGK FM23395 6FGK FM19995 7FGK TX-MOD18495 6FGK TX-MOD16495 5FGK TX-MOD15495 6FGTX-MOD15495 4FGTX-MOD14995 4L 3-S/2810495 2F 2/S-28-R4H7495 5-28SERVO1895 S-32SERVO2595 COVERINGS Monokote Opaque 3 Rolls1695 Monokote Trans 3 Rolls1695 Monokote Met 3 Rolls2095 CYANOACRYLATE Hol Staff HO-I e169 Hot Sluff HST-t e169 Hot Stuff HS-4 2 Ounce589 Hot Stuff HST4 2 Ounce589 Hot Shot245 Jet Ounce179 Super jet Ounce179 Jet 2 Ounce599 Super Jet 2 Ounce599 EPOXY GLUE tescou 30 Minute 9 Ounce595 Descon 5 Minute 9 Ounce595 Hobbvposy 118 Ounce359 EIobbpos IV 9 Ounce559 Hobby posy 1118 Ounce295 SULLIVAN HT #600 Starter2795 HII #601 Starter3095 HTI-24 #602 Starter3295 PLEASE NOTE Prices subject change manufacturers prices change AtI items subject asaitahitity time sale Prices effect untit next Modet Asintion Issue Show room prices may stightty higher Visit show room white San Antonio 100 discount price list refunded first order Shipping & Handling Prepaid orders $300 COD Credit Curd orders $595 tsersras orders add estimated shipping 25% deposit required first time COD 55% sates tas reqaired Tesas residents Persnat checks detay shippiag t5 days CL Scale/Boss Continued page 66 AMA rule book multi-stranded lines Details can found Page 17 Figure 3 1982-83 issue book However before proceed mak ing line terminations remove enough line insulating material unin sulated portion line passes around eyelet through soft brass copper tubing Tubing used make up lines shown photos 3A2-in OD soft brass just right size required three thicknesses 027-size line used Please note should let small length line about k out tubing before crimping tubing small line stub will used making electrical connection line Referring accompanying photos will notice piece /iv-in OD copper tubing about /2 5/o-in long has crimped small line stub Both ends line made same manner As noted above small piece copper tubing just added line ends will act electrical connection point seen photos alligator clip tached making connection switch control box Another method making electrical connections both ends might use Deans-type RC connectors case small lengths stranded wire can sol dered /i6-in OD copper tubing terminals Deans connector alligator clips should replaced other half connector would also advisable use Deans connector model end lines good solid connection Control line insulation accompanying photos sketch show couple sugges tions insulating lines control handle models bellcrank sys tem method shown nylon H-shaped insulators will have make insulators shown sketch have pull-tested 80 lbs dozens timeswhich sufficient Scale projects weigh 8-15 lb range Another very simple method insulating lines has suggested to slip small piece plastic tubing about -in long both ends large Luxon line clip shown photo plastic tubing shown tubing used connecting cylinder tank units Rom Air retracting gear system together ran some pull tests setup found method insulating lines should used models require less 40 lb pullnot because failure clips because higher pull-tests would cut plastic tubing thus mining sulation required between line handle bellcrank system Choose insulating system carefully model Continued page 162 DUAL PERSOKAUTY TRAINER GEMINIS BEAUTiFUL SUPER CHAMP CUSTOM TUNED ENGINES COMPETITION ACCESSORIES SPECIALISTS IN FINE TUNED COX TEE DEE AND REED VALVE ENGINES THROTTLED VERSIONS AVAILABLE CUSTOM PARTS FOR ALL CDX ENGINE& COMPLETE INVENTORY OF INDIVIDUAL STOCK PARTS FOR ALL CURRENT TD & MEDALLION ENGINES MANY PARTS FOR COLLECTORS OLD TfMER & NOSTALGIA FLYERS CUSTOM TUNING FOR ALL ENGINES HARD CHROMING OTHER COMPETITION ACCESSORIES FOR DETAILED BROCHURE SEND 75 TO EUSTOM ERAFTSMANSHIP PO BOX 2699 LAGUNA HILLS CA 92654 TELEPHON& 714 830-5162 160 Model Aviation IN STOCK FOR IMMEDIATE SHIPMENT New 30 CID QUADRA $19995 New 22 CtD QUADRA $10900 Run 22 QUADRA $9995 wiob Brinighatta Ftywheetnll995 Rug 22 QUADRA POWER ASSEMBLY ONLY08450 QUADRA REPAtR 000 pius paris Jim Mussur ERCOUPEPLANS $2395 KtT $23995 Jim Mussur TOMAHAWKPLANS $2395 KtT $25995 Jim Musser 9-BALL TRAtNER PLANS $1895 KIT $9595 BALSA BASSWOOD iatt siouni 35% OFF Connepo FLEET PLANS 02995 KtT $15995 COWL 51995 FLOATS 36115 seat cures 01795 comptune kin 03995 FLOATS 48 seatecorun 02195 comptune kin 04795 10 WWi WHEELS 02595 P&W CYLS FLEETn$2595 PLANS SUPER STEARMAN lOodtreyl $2995 STARDUSTER TOO V IBrisigheital J3 CUB Nuilto $2995 VOLKSPLANE IChickun Chartiel $2395 COCKPtT KtTS Tomahawk F4U1 Spinfire $2295 Ercoupe $2095 Snuarman 52295 Cinabria $2495 J3 cob $2195 ME-lOB 52295 Ftaat $2195 USOaadruFUELTANKSl6oz $e95 32oz $795 FtBERGLASS ARROW SHAFTS SliB 32 ong 6101000 24-Hour ser.. Add 5250 postage Send Bank Check Money Order JIM MESSERS QUALITY MODEL PRODUCTS 100 Valley View Dr Atleguny NY 14706 THE BEGINNERS KITTEN AND EXPERTS TIGER Revolutionary snap no wing eliminates bolts rubber bands Complete lilt $5495 dealer direct GEMINI MODELS INC P0 Box 1108 Possum NJ 07055 iie mojon air ix ii 05 rail nina htubtodatattad .r OUAORA92400 o 405O 4-CycIn mm 700 inner sunera ganscain pians Full sian 9 FOKKER DVltt 34 ca In 92500 9 PTl 9 Oaadra Kinrita 82BOO 9 PIPER L-4 IMittearo J3 CaSt Oaadra 93000 Sand canS chuckPlans sent roiled UPS POSTPAID ur monan ardar en Ioreign orders add 40% air wail TAYLOR-CRAFT Ound large sane Srnchores 01 LEE TAYLOR all Taniororas plans nnerings 2$ e Milton Aeenaa Ronantita CA 95679 Versatility last . tool modelers hove worted Master Jig 400 Versatile Model Aviatior wrote . doeo wore tricks tha, Houdini Ms lest Report concluded rugged well mode modelers accessory tool Model Airplane News cal led it. years better mousetrap es pain painting covering installing rth penny 9 wait over Order today Also available video tape Mosteriig 400 action along helpful building tips Great eis Meit TIDE DISTRIBUTORS Minto ND 5826t PO Boo 3t7/BCM 254 Phene 175l 24R35Bt Days 170t1 3522667 Evenings E Mosleriig 400t 2991 shippivg hovdlvg VHS video rope30T0 BETA video tope3TTT 2000 retovded t upe isretorved oolhv 30 days [1 FREE BROCHUnE LI VITA LI MASTERCARD LI CHECK NAME ADDRESS STATE ____________________________ZIP CL Scale/Boss Continbed page 160 building heavier 15 lb suggest devise better insulating system has suggested System operation systems operation based idea servo would operated time ie switch operates servo switch B oper ates servo B moving switches off center position appro priate servo will operate direction theother amount servo travel will directly related time switch held Operate position some reason wish control speed particular servo 50 200 ohm resistor can added switch box PC board shown last months wiring drawing Placing resistor circuit shown splits battery voltage between resistor servo motor causing motor operate lower rate speed Adjust resistor size produce de sired speedthe higher resistance lower servo speed resistor carbon /2-watt size available elec tronic supply shops few cents suggest resistor used Plus lead servo Minus lead servo C Placing resistor either lead servo B will also cause speed Servos C affected Further examiniation circuit draw ing some experimenting t switches will show servo can operated time example switches B operated simul taneously opposite directions servos B will operate simultaneously opposite directions No servos will operate switches B operated simul taneously same direction extreme situation will find operating switches C same di rection same time will cause servos operate same time As noted above intent operation system have servo operated time wish otherwise care system presented has based operation three servos using four lines nothing preventing making system two-servo oper ation thus eliminating problems con necting fourth line two-servo-only operation required eliminate switch C servo C associ ated wiring both ends will have terminate battery jack leads switch B move third line connection switch C position switch B bottom right terminal believe between discussion given material last months column major points building operating CL Electric Servo System have covered Some points did cover mounting servos Deans Continued page 164 Consumers Guide RC Aircraft Puoducts 242 Pages Photos 8 Descriptions over 2000 RC Aircraft Products fered 176 companies Outstanding Value Only $495 plus shipping0 Send $660 Includes UPS lingi Foretgn orders send $7SG US surface mail $1049 US air mail Catalogs companies would cost over 10 times price outstanding reference book product lines nearly major man ufacturer distributor importer well unique interesting products small companies seldom advertise national modeling magazines July 83 Model Aviation See Local Dealer Order Direct NAME AnnnFR Send check money order Censemera Guide 150 Oft St Hhrdaunburm VA 22801 H Crc9 SO0 780 Wing Area 564 Sq SENSOAR glider HOBBY HORN Euclusiver HOBBY HORN Kit SENSOAR Glider kit high quality kit MudNine cat S sanded parts Select quality balsa spruce Octailed plans written instructions THERMAL SLOPE 15 ELECTRIC POWER VALUE PRICED 51600 OLE lIMER Kti75 Full onR Partial tttsl P & W Sesi-Kita Corobined aitt full stripsvood plan Now mel Wire Window etc Mat Note may purchased Just oo semikilo mill plona--scnite colt priceo 8936 Buoeaneer94B1t 1538 Clipper MR i-73-539 8837 Oulluire SptserlOB-SBt 1840 Ruogwr-46- $27 0939 Mereury72--956 1931 Miss America-94---959 1961Playboy Jr-14-$39 1941 Playboy Sr-90-S46 1938Power House94-$43 8940 Sailplaoe-tS-- 074 1840So LonglOtIB 1938 Trentoo Terror-TY932 8839Zipper-Sd849 1939 Kardo Wukefleld-44- $17 MIDWAY MODEL CO Semi-kilo Combined vc/otrp 8936 Ptying Quaker94-$49 lO3TQaakerPlash-6t$30 1937 Long Cabin79$42 1930 Air Chiaf0l040 STRUCKS 1540 70 Spas 839 Sq uruler SEMI-KIT Combo IPulIl Kit$6300 SCALE PLANS DRAWINGS 5 50 HEINKEL HE tOlD 02 605 5t000 SH8PP8NO AND 84ANOLINO 64 Page CATALOOUE lip $900 odd $150 $200 PP/lot Ctoss $905 $2000 add $225 copy mill sent $2001 $4500 add 9300 freewhen requested $4501 $7000 add $250 order ond over $7000 add $400 BBY HORN CA- Addresaeeo add 0% tam ohubby specialties0 Send StO Vjsa/MC#Eopt0t73 Moran Street IA Cheek allow up 10 30 Boo 2202 days chock clearanceWestminster Ca 92083 COOEoact Charges 0 893B3tt Nd Cash OnlyIAIl UPS] 01 8958203 162 Model Aviation nundreds New Products r ALL PHASE ART Best Custom Screen Sportswear Designs Available Designs Direct Print eat transfer Newest Laser ,A3 Navy Jet rs Wide Choice Shirt Styles Colors Sizes Send $100 Illustrated Brochure name aadtvss citystatezip designsizecolor See us NEW STORE drop booth WRAM Show White Plains NY IFeb 25-281 Roanoke IVAI Valley Auction & Swap Shop IMBr 31 central PA Aeromodelers Flea Market IMar 101 TO ORDER Send check money order ladd 10% postagelhandling MD res 5% taxI Phase Art Village Sq Shopping Center Route 5 South Waldorf MD 20601 1301 8433050 MasterCard & Visa Accepted line-connector model attachment fourth line both model control handle will leave construction installation items own ingenuity last thought before closing has comments need additional infor mation about project would too glad hear Good luck Send CL Scale items Bill Boss 77-06 269th Sr New Hyde Park NY 11040 CL Navy Carrier/Perry Continued page 67 plain hap nose-down pitching moment will about half pro duced plain flap 1 have run tests comparing full-stall low-speed performance flaps What have noticed however models consistently fly seven eight miles per hour light winds have flaps can make own conclusions own observations Putting flaps airplane rather straightforward task Probably common way operating flaps use standard horn arrangement push/pull rod connected arm tailhook Ive used wide variety hinges tube-andwire through full range commercial hinges hinges made iron-on Mylar covering oh convenient hinges Ive used last two models onepiece polypropylene hinge Full Com mand Systems 908 E Rosewood Spokane WA 99208 Because no hinge pins no sliding surfaces cant harm hinge inadvertently getting CyA glue epoxy paint hinge line light very stronga good characteristic flaps actuated tailhook Wings have straight hinge line must have divided flaps F4U Cor sair three flap segments per wing An easy way connect flap segments shown accompanying photo segment contains Vi6-in OD brass aluminum tube mounted near trailing edge other flap segment has 0025 wire tached extending across break tube wire can bend slide within tube allow movement tween segments Richard L Perry 7578 Vogels Way Springfield VA 22153 CL Racing/Ballard Continued oaoe 68 amount fuel engine receives prime tube works independently fuel shutoff fuel shutoff does have open engine receive prime think majority problems develop fuel shutoff open during filling process allowing large amount fuel injected carburetor and/or Fine Quality Flying Models Catalog Si 50 98 RUBBER POWER KITSI plus Gliders C/L R/C Accessories Books MAJESTIC MODELS 3273 West 129th Street Cleveland Ohio 44111 FREE 1984 Catalog tools Hobbyist Miniature lathes Milling/drilling machines Jig & circular saws Styrofoam cutter W1i hobby products co PO Box 07846 Columbus OH 4320 HOOOYHTDEAWAYHOBOYHIEAWAYHOOBYHIDEAWAYHOOBYHIOEAWAi FAMOUS BRITISH DIESELS AEROMODELLER PLANS SPARES FOR M/E PAW 0/C 3rd PRINTING CATALOG - DIESEL HANDBOOK $350 pp HOBBY HIDE WAY DELAVANIL 309 244-7389 61734 HOOOYIIIOEAWAYHOBOYHTDEAWAYIIOBOYHIDEAWAYFIOOOYHIDEAW 164 Model Aviation Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant * Constantly monitors receiver interference another trans mitter outside sources instantly reducing throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo Case Power 17 ma Volt Cut-Out Point 46 volts Pulse Width Range Adj 0628 milliseconds Systems 3 4 wire Temp Range 00 1400 F Weight 12 oz Price $4795 Postpaid Specify connector type positive negative pulse ordering RF Enterprises 106 N Main St. Arlington OH 46814 419 355-5065 GIANT SCALE & SPORT PLANS SETS & KITS order contains concise construction manual Partial kits include precut wing ribs fuselage formers prebent landing gear already have plan sets may deduct 1000 prices partial kits listed below Fiberglass parts f,lI kits Travel Air D 4000 j 8 Special MK4 convertible 84 Monoplane 78 Siplane Weighs 18 lbs Low Wing elpiane & Parasol Plans $1700Plans $1700 Partial Kit $8500 EitherSoth Partial Kit $9500 Travel Air 2000 105 classic Scale niplane Wt 23 lbs Plans $1700 Partial Kit $13000 Travel Air 4000 99 Radial Eng Classic Siplane 23 lbs Plans $1700 Partial Kit $13000 Fokker 0-VII 58 German WWI Fighter elplane 23 lbs Plans $1700Partial Kit $13000 Sopwith Tripehound80WWI Triplane 17 lbs Plans $1700Partial Kit $14000 Sopwith Pup80 WWI Siplane16-17 lbs Plans $1700 Partial Kit $13000 WACO uPF-790 Siplane 23 lbsPlans $1700 Airplanes LandingGear 2wireformedonly$995 r $1shipping Assembled ready install $1995 ipping IWbeel Pants models add $51 Cabanas$995 hipping Fokker Cabanas$1495 hipping Hardware Packageincludes famous 8ehrens strut system$11 95PP Ordering information orders shipped uS Parcal Post add $3 shipping plans $10 kits Make checks payable Jerry eehrens fastest service send Postal Money Order bank check Sorry no COOs accepted Send mail orders BEHRENS PLAN SERVICE 3127 Healy Ave Far Rockaway NY 11691 Phone 12121 337-6987 Allow 4-6 weeks delivery g BALANCt IC ALL UlHtIIlUN Heres equipment yuu need give props sey bes balance--balance directions Carefully crafted tsp grad materials BUBBLE BALANCER accomodates 3/161/49/32 prol holes Other sizes available us special order Dealers invited $1795 AddStOOfar HOWARD B HUEBL OEPT$O postage handling Miss 6% sales tan Na CODs Seo 82 St 6 Monkate MN 5600
Edition: Model Aviation - 1984/03
Page Numbers: 66, 160, 162, 164
Control Line SCALE Bill Boss CL ELECTRIC SERVO SYSTEM Part II last months column covered con struction systems switch box its wir ing attachment G-S Roberts control handle month will show modify servos electric-only operation control speed servos give some suggestions insulate control lines control handle planes control system control box item have talked about yet use 50-200 ohm resistor shown wiring sketch will cover its use talk about overall system oper ation later text Servos servos used system standard RC servos electronics removed case system shown servos modified used Ed Jacoby Futaba system no longer uses Modification servos easily accomplished removing screws usually four hold lower portion servo case place lower half case removed electronics servo motor should view has done remove electronics unsolder two three wire connections Plus Minus possibly Ground motor sure use low-wattage soldering iron 25-45 watts working servo leads too much heat may cause damage either servo motor electronics being removed electronic unit removed re connect new leads 8-10 long Plus Minus terminals servo motor pass through servo case rubber grom met reinstall lower half servo case suggest use same color wire say red Plus leads black Minus leads Note using colored wire will help eliminate confusion about leads Plus Minus making con nections PC board servos used complete proceed wire piece PC board shown wiring drawing included last months column After ser vos wired PC board will have add four leads will used make connection control lines wing tip length leads will de pend size models wing Warning use stranded wire leads because withstands vibration much better solid wire dont want install servos complete plane after two flights find something doesnt work due broken wire inside plane have explained modify complete working RC servo other approach providing servo system might want explore look ing through some RC supply catalogs will find companies such Litco Ace RC have available parts servo cases mechanics motors can purchased separately used assemble servos needed project Pur chasing servo parts manner no electronics will reduce cost servos project 30% 40% Control lines Now have completed control handle switch-box servo units lets look line construction con nection control handle models servo units nothing special about basic make-up control lines other fact will made sulated line have determined overall length lines simply follow line-construction procedures outlined Continued page 160 Heres make heavy-duty control line Insulator shown other photo Theres Information column 66 Model Aviation roibo Two types OT line Insulators upper although simple shouldnt used models needing 40-lb pull-test lower Insulator handmade nylon block has used reliably models needIng pull-tests over 80 lb Control lines must insulated too 16 I- - 1~WLP-L~L~NO52 DRILL HOLE16 2 3 _______________ 4 NYLON INSULATING LINE CONNECTOR ILZUZL 861 Isunt RoadSan Antonio TX 78216 512 341-6712 FUTABA 7FGK FM23395 6FGK FM19995 7FGK TX-MOD18495 6FGK TX-MOD16495 5FGK TX-MOD15495 6FGTX-MOD15495 4FGTX-MOD14995 4L 3-S/2810495 2F 2/S-28-R4H7495 5-28SERVO1895 S-32SERVO2595 COVERINGS Monokote Opaque 3 Rolls1695 Monokote Trans 3 Rolls1695 Monokote Met 3 Rolls2095 CYANOACRYLATE Hol Staff HO-I e169 Hot Sluff HST-t e169 Hot Stuff HS-4 2 Ounce589 Hot Stuff HST4 2 Ounce589 Hot Shot245 Jet Ounce179 Super jet Ounce179 Jet 2 Ounce599 Super Jet 2 Ounce599 EPOXY GLUE tescou 30 Minute 9 Ounce595 Descon 5 Minute 9 Ounce595 Hobbvposy 118 Ounce359 EIobbpos IV 9 Ounce559 Hobby posy 1118 Ounce295 SULLIVAN HT #600 Starter2795 HII #601 Starter3095 HTI-24 #602 Starter3295 PLEASE NOTE Prices subject change manufacturers prices change AtI items subject asaitahitity time sale Prices effect untit next Modet Asintion Issue Show room prices may stightty higher Visit show room white San Antonio 100 discount price list refunded first order Shipping & Handling Prepaid orders $300 COD Credit Curd orders $595 tsersras orders add estimated shipping 25% deposit required first time COD 55% sates tas reqaired Tesas residents Persnat checks detay shippiag t5 days CL Scale/Boss Continued page 66 AMA rule book multi-stranded lines Details can found Page 17 Figure 3 1982-83 issue book However before proceed mak ing line terminations remove enough line insulating material unin sulated portion line passes around eyelet through soft brass copper tubing Tubing used make up lines shown photos 3A2-in OD soft brass just right size required three thicknesses 027-size line used Please note should let small length line about k out tubing before crimping tubing small line stub will used making electrical connection line Referring accompanying photos will notice piece /iv-in OD copper tubing about /2 5/o-in long has crimped small line stub Both ends line made same manner As noted above small piece copper tubing just added line ends will act electrical connection point seen photos alligator clip tached making connection switch control box Another method making electrical connections both ends might use Deans-type RC connectors case small lengths stranded wire can sol dered /i6-in OD copper tubing terminals Deans connector alligator clips should replaced other half connector would also advisable use Deans connector model end lines good solid connection Control line insulation accompanying photos sketch show couple sugges tions insulating lines control handle models bellcrank sys tem method shown nylon H-shaped insulators will have make insulators shown sketch have pull-tested 80 lbs dozens timeswhich sufficient Scale projects weigh 8-15 lb range Another very simple method insulating lines has suggested to slip small piece plastic tubing about -in long both ends large Luxon line clip shown photo plastic tubing shown tubing used connecting cylinder tank units Rom Air retracting gear system together ran some pull tests setup found method insulating lines should used models require less 40 lb pullnot because failure clips because higher pull-tests would cut plastic tubing thus mining sulation required between line handle bellcrank system Choose insulating system carefully model Continued page 162 DUAL PERSOKAUTY TRAINER GEMINIS BEAUTiFUL SUPER CHAMP CUSTOM TUNED ENGINES COMPETITION ACCESSORIES SPECIALISTS IN FINE TUNED COX TEE DEE AND REED VALVE ENGINES THROTTLED VERSIONS AVAILABLE CUSTOM PARTS FOR ALL CDX ENGINE& COMPLETE INVENTORY OF INDIVIDUAL STOCK PARTS FOR ALL CURRENT TD & MEDALLION ENGINES MANY PARTS FOR COLLECTORS OLD TfMER & NOSTALGIA FLYERS CUSTOM TUNING FOR ALL ENGINES HARD CHROMING OTHER COMPETITION ACCESSORIES FOR DETAILED BROCHURE SEND 75 TO EUSTOM ERAFTSMANSHIP PO BOX 2699 LAGUNA HILLS CA 92654 TELEPHON& 714 830-5162 160 Model Aviation IN STOCK FOR IMMEDIATE SHIPMENT New 30 CID QUADRA $19995 New 22 CtD QUADRA $10900 Run 22 QUADRA $9995 wiob Brinighatta Ftywheetnll995 Rug 22 QUADRA POWER ASSEMBLY ONLY08450 QUADRA REPAtR 000 pius paris Jim Mussur ERCOUPEPLANS $2395 KtT $23995 Jim Mussur TOMAHAWKPLANS $2395 KtT $25995 Jim Musser 9-BALL TRAtNER PLANS $1895 KIT $9595 BALSA BASSWOOD iatt siouni 35% OFF Connepo FLEET PLANS 02995 KtT $15995 COWL 51995 FLOATS 36115 seat cures 01795 comptune kin 03995 FLOATS 48 seatecorun 02195 comptune kin 04795 10 WWi WHEELS 02595 P&W CYLS FLEETn$2595 PLANS SUPER STEARMAN lOodtreyl $2995 STARDUSTER TOO V IBrisigheital J3 CUB Nuilto $2995 VOLKSPLANE IChickun Chartiel $2395 COCKPtT KtTS Tomahawk F4U1 Spinfire $2295 Ercoupe $2095 Snuarman 52295 Cinabria $2495 J3 cob $2195 ME-lOB 52295 Ftaat $2195 USOaadruFUELTANKSl6oz $e95 32oz $795 FtBERGLASS ARROW SHAFTS SliB 32 ong 6101000 24-Hour ser.. Add 5250 postage Send Bank Check Money Order JIM MESSERS QUALITY MODEL PRODUCTS 100 Valley View Dr Atleguny NY 14706 THE BEGINNERS KITTEN AND EXPERTS TIGER Revolutionary snap no wing eliminates bolts rubber bands Complete lilt $5495 dealer direct GEMINI MODELS INC P0 Box 1108 Possum NJ 07055 iie mojon air ix ii 05 rail nina htubtodatattad .r OUAORA92400 o 405O 4-CycIn mm 700 inner sunera ganscain pians Full sian 9 FOKKER DVltt 34 ca In 92500 9 PTl 9 Oaadra Kinrita 82BOO 9 PIPER L-4 IMittearo J3 CaSt Oaadra 93000 Sand canS chuckPlans sent roiled UPS POSTPAID ur monan ardar en Ioreign orders add 40% air wail TAYLOR-CRAFT Ound large sane Srnchores 01 LEE TAYLOR all Taniororas plans nnerings 2$ e Milton Aeenaa Ronantita CA 95679 Versatility last . tool modelers hove worted Master Jig 400 Versatile Model Aviatior wrote . doeo wore tricks tha, Houdini Ms lest Report concluded rugged well mode modelers accessory tool Model Airplane News cal led it. years better mousetrap es pain painting covering installing rth penny 9 wait over Order today Also available video tape Mosteriig 400 action along helpful building tips Great eis Meit TIDE DISTRIBUTORS Minto ND 5826t PO Boo 3t7/BCM 254 Phene 175l 24R35Bt Days 170t1 3522667 Evenings E Mosleriig 400t 2991 shippivg hovdlvg VHS video rope30T0 BETA video tope3TTT 2000 retovded t upe isretorved oolhv 30 days [1 FREE BROCHUnE LI VITA LI MASTERCARD LI CHECK NAME ADDRESS STATE ____________________________ZIP CL Scale/Boss Continbed page 160 building heavier 15 lb suggest devise better insulating system has suggested System operation systems operation based idea servo would operated time ie switch operates servo switch B oper ates servo B moving switches off center position appro priate servo will operate direction theother amount servo travel will directly related time switch held Operate position some reason wish control speed particular servo 50 200 ohm resistor can added switch box PC board shown last months wiring drawing Placing resistor circuit shown splits battery voltage between resistor servo motor causing motor operate lower rate speed Adjust resistor size produce de sired speedthe higher resistance lower servo speed resistor carbon /2-watt size available elec tronic supply shops few cents suggest resistor used Plus lead servo Minus lead servo C Placing resistor either lead servo B will also cause speed Servos C affected Further examiniation circuit draw ing some experimenting t switches will show servo can operated time example switches B operated simul taneously opposite directions servos B will operate simultaneously opposite directions No servos will operate switches B operated simul taneously same direction extreme situation will find operating switches C same di rection same time will cause servos operate same time As noted above intent operation system have servo operated time wish otherwise care system presented has based operation three servos using four lines nothing preventing making system two-servo oper ation thus eliminating problems con necting fourth line two-servo-only operation required eliminate switch C servo C associ ated wiring both ends will have terminate battery jack leads switch B move third line connection switch C position switch B bottom right terminal believe between discussion given material last months column major points building operating CL Electric Servo System have covered Some points did cover mounting servos Deans Continued page 164 Consumers Guide RC Aircraft Puoducts 242 Pages Photos 8 Descriptions over 2000 RC Aircraft Products fered 176 companies Outstanding Value Only $495 plus shipping0 Send $660 Includes UPS lingi Foretgn orders send $7SG US surface mail $1049 US air mail Catalogs companies would cost over 10 times price outstanding reference book product lines nearly major man ufacturer distributor importer well unique interesting products small companies seldom advertise national modeling magazines July 83 Model Aviation See Local Dealer Order Direct NAME AnnnFR Send check money order Censemera Guide 150 Oft St Hhrdaunburm VA 22801 H Crc9 SO0 780 Wing Area 564 Sq SENSOAR glider HOBBY HORN Euclusiver HOBBY HORN Kit SENSOAR Glider kit high quality kit MudNine cat S sanded parts Select quality balsa spruce Octailed plans written instructions THERMAL SLOPE 15 ELECTRIC POWER VALUE PRICED 51600 OLE lIMER Kti75 Full onR Partial tttsl P & W Sesi-Kita Corobined aitt full stripsvood plan Now mel Wire Window etc Mat Note may purchased Just oo semikilo mill plona--scnite colt priceo 8936 Buoeaneer94B1t 1538 Clipper MR i-73-539 8837 Oulluire SptserlOB-SBt 1840 Ruogwr-46- $27 0939 Mereury72--956 1931 Miss America-94---959 1961Playboy Jr-14-$39 1941 Playboy Sr-90-S46 1938Power House94-$43 8940 Sailplaoe-tS-- 074 1840So LonglOtIB 1938 Trentoo Terror-TY932 8839Zipper-Sd849 1939 Kardo Wukefleld-44- $17 MIDWAY MODEL CO Semi-kilo Combined vc/otrp 8936 Ptying Quaker94-$49 lO3TQaakerPlash-6t$30 1937 Long Cabin79$42 1930 Air Chiaf0l040 STRUCKS 1540 70 Spas 839 Sq uruler SEMI-KIT Combo IPulIl Kit$6300 SCALE PLANS DRAWINGS 5 50 HEINKEL HE tOlD 02 605 5t000 SH8PP8NO AND 84ANOLINO 64 Page CATALOOUE lip $900 odd $150 $200 PP/lot Ctoss $905 $2000 add $225 copy mill sent $2001 $4500 add 9300 freewhen requested $4501 $7000 add $250 order ond over $7000 add $400 BBY HORN CA- Addresaeeo add 0% tam ohubby specialties0 Send StO Vjsa/MC#Eopt0t73 Moran Street IA Cheek allow up 10 30 Boo 2202 days chock clearanceWestminster Ca 92083 COOEoact Charges 0 893B3tt Nd Cash OnlyIAIl UPS] 01 8958203 162 Model Aviation nundreds New Products r ALL PHASE ART Best Custom Screen Sportswear Designs Available Designs Direct Print eat transfer Newest Laser ,A3 Navy Jet rs Wide Choice Shirt Styles Colors Sizes Send $100 Illustrated Brochure name aadtvss citystatezip designsizecolor See us NEW STORE drop booth WRAM Show White Plains NY IFeb 25-281 Roanoke IVAI Valley Auction & Swap Shop IMBr 31 central PA Aeromodelers Flea Market IMar 101 TO ORDER Send check money order ladd 10% postagelhandling MD res 5% taxI Phase Art Village Sq Shopping Center Route 5 South Waldorf MD 20601 1301 8433050 MasterCard & Visa Accepted line-connector model attachment fourth line both model control handle will leave construction installation items own ingenuity last thought before closing has comments need additional infor mation about project would too glad hear Good luck Send CL Scale items Bill Boss 77-06 269th Sr New Hyde Park NY 11040 CL Navy Carrier/Perry Continued page 67 plain hap nose-down pitching moment will about half pro duced plain flap 1 have run tests comparing full-stall low-speed performance flaps What have noticed however models consistently fly seven eight miles per hour light winds have flaps can make own conclusions own observations Putting flaps airplane rather straightforward task Probably common way operating flaps use standard horn arrangement push/pull rod connected arm tailhook Ive used wide variety hinges tube-andwire through full range commercial hinges hinges made iron-on Mylar covering oh convenient hinges Ive used last two models onepiece polypropylene hinge Full Com mand Systems 908 E Rosewood Spokane WA 99208 Because no hinge pins no sliding surfaces cant harm hinge inadvertently getting CyA glue epoxy paint hinge line light very stronga good characteristic flaps actuated tailhook Wings have straight hinge line must have divided flaps F4U Cor sair three flap segments per wing An easy way connect flap segments shown accompanying photo segment contains Vi6-in OD brass aluminum tube mounted near trailing edge other flap segment has 0025 wire tached extending across break tube wire can bend slide within tube allow movement tween segments Richard L Perry 7578 Vogels Way Springfield VA 22153 CL Racing/Ballard Continued oaoe 68 amount fuel engine receives prime tube works independently fuel shutoff fuel shutoff does have open engine receive prime think majority problems develop fuel shutoff open during filling process allowing large amount fuel injected carburetor and/or Fine Quality Flying Models Catalog Si 50 98 RUBBER POWER KITSI plus Gliders C/L R/C Accessories Books MAJESTIC MODELS 3273 West 129th Street Cleveland Ohio 44111 FREE 1984 Catalog tools Hobbyist Miniature lathes Milling/drilling machines Jig & circular saws Styrofoam cutter W1i hobby products co PO Box 07846 Columbus OH 4320 HOOOYHTDEAWAYHOBOYHIEAWAYHOOBYHIDEAWAYHOOBYHIOEAWAi FAMOUS BRITISH DIESELS AEROMODELLER PLANS SPARES FOR M/E PAW 0/C 3rd PRINTING CATALOG - DIESEL HANDBOOK $350 pp HOBBY HIDE WAY DELAVANIL 309 244-7389 61734 HOOOYIIIOEAWAYHOBOYHTDEAWAYIIOBOYHIDEAWAYFIOOOYHIDEAW 164 Model Aviation Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant * Constantly monitors receiver interference another trans mitter outside sources instantly reducing throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo Case Power 17 ma Volt Cut-Out Point 46 volts Pulse Width Range Adj 0628 milliseconds Systems 3 4 wire Temp Range 00 1400 F Weight 12 oz Price $4795 Postpaid Specify connector type positive negative pulse ordering RF Enterprises 106 N Main St. Arlington OH 46814 419 355-5065 GIANT SCALE & SPORT PLANS SETS & KITS order contains concise construction manual Partial kits include precut wing ribs fuselage formers prebent landing gear already have plan sets may deduct 1000 prices partial kits listed below Fiberglass parts f,lI kits Travel Air D 4000 j 8 Special MK4 convertible 84 Monoplane 78 Siplane Weighs 18 lbs Low Wing elpiane & Parasol Plans $1700Plans $1700 Partial Kit $8500 EitherSoth Partial Kit $9500 Travel Air 2000 105 classic Scale niplane Wt 23 lbs Plans $1700 Partial Kit $13000 Travel Air 4000 99 Radial Eng Classic Siplane 23 lbs Plans $1700 Partial Kit $13000 Fokker 0-VII 58 German WWI Fighter elplane 23 lbs Plans $1700Partial Kit $13000 Sopwith Tripehound80WWI Triplane 17 lbs Plans $1700Partial Kit $14000 Sopwith Pup80 WWI Siplane16-17 lbs Plans $1700 Partial Kit $13000 WACO uPF-790 Siplane 23 lbsPlans $1700 Airplanes LandingGear 2wireformedonly$995 r $1shipping Assembled ready install $1995 ipping IWbeel Pants models add $51 Cabanas$995 hipping Fokker Cabanas$1495 hipping Hardware Packageincludes famous 8ehrens strut system$11 95PP Ordering information orders shipped uS Parcal Post add $3 shipping plans $10 kits Make checks payable Jerry eehrens fastest service send Postal Money Order bank check Sorry no COOs accepted Send mail orders BEHRENS PLAN SERVICE 3127 Healy Ave Far Rockaway NY 11691 Phone 12121 337-6987 Allow 4-6 weeks delivery g BALANCt IC ALL UlHtIIlUN Heres equipment yuu need give props sey bes balance--balance directions Carefully crafted tsp grad materials BUBBLE BALANCER accomodates 3/161/49/32 prol holes Other sizes available us special order Dealers invited $1795 AddStOOfar HOWARD B HUEBL OEPT$O postage handling Miss 6% sales tan Na CODs Seo 82 St 6 Monkate MN 5600
Edition: Model Aviation - 1984/03
Page Numbers: 66, 160, 162, 164
Control Line SCALE Bill Boss CL ELECTRIC SERVO SYSTEM Part II last months column covered con struction systems switch box its wir ing attachment G-S Roberts control handle month will show modify servos electric-only operation control speed servos give some suggestions insulate control lines control handle planes control system control box item have talked about yet use 50-200 ohm resistor shown wiring sketch will cover its use talk about overall system oper ation later text Servos servos used system standard RC servos electronics removed case system shown servos modified used Ed Jacoby Futaba system no longer uses Modification servos easily accomplished removing screws usually four hold lower portion servo case place lower half case removed electronics servo motor should view has done remove electronics unsolder two three wire connections Plus Minus possibly Ground motor sure use low-wattage soldering iron 25-45 watts working servo leads too much heat may cause damage either servo motor electronics being removed electronic unit removed re connect new leads 8-10 long Plus Minus terminals servo motor pass through servo case rubber grom met reinstall lower half servo case suggest use same color wire say red Plus leads black Minus leads Note using colored wire will help eliminate confusion about leads Plus Minus making con nections PC board servos used complete proceed wire piece PC board shown wiring drawing included last months column After ser vos wired PC board will have add four leads will used make connection control lines wing tip length leads will de pend size models wing Warning use stranded wire leads because withstands vibration much better solid wire dont want install servos complete plane after two flights find something doesnt work due broken wire inside plane have explained modify complete working RC servo other approach providing servo system might want explore look ing through some RC supply catalogs will find companies such Litco Ace RC have available parts servo cases mechanics motors can purchased separately used assemble servos needed project Pur chasing servo parts manner no electronics will reduce cost servos project 30% 40% Control lines Now have completed control handle switch-box servo units lets look line construction con nection control handle models servo units nothing special about basic make-up control lines other fact will made sulated line have determined overall length lines simply follow line-construction procedures outlined Continued page 160 Heres make heavy-duty control line Insulator shown other photo Theres Information column 66 Model Aviation roibo Two types OT line Insulators upper although simple shouldnt used models needing 40-lb pull-test lower Insulator handmade nylon block has used reliably models needIng pull-tests over 80 lb Control lines must insulated too 16 I- - 1~WLP-L~L~NO52 DRILL HOLE16 2 3 _______________ 4 NYLON INSULATING LINE CONNECTOR ILZUZL 861 Isunt RoadSan Antonio TX 78216 512 341-6712 FUTABA 7FGK FM23395 6FGK FM19995 7FGK TX-MOD18495 6FGK TX-MOD16495 5FGK TX-MOD15495 6FGTX-MOD15495 4FGTX-MOD14995 4L 3-S/2810495 2F 2/S-28-R4H7495 5-28SERVO1895 S-32SERVO2595 COVERINGS Monokote Opaque 3 Rolls1695 Monokote Trans 3 Rolls1695 Monokote Met 3 Rolls2095 CYANOACRYLATE Hol Staff HO-I e169 Hot Sluff HST-t e169 Hot Stuff HS-4 2 Ounce589 Hot Stuff HST4 2 Ounce589 Hot Shot245 Jet Ounce179 Super jet Ounce179 Jet 2 Ounce599 Super Jet 2 Ounce599 EPOXY GLUE tescou 30 Minute 9 Ounce595 Descon 5 Minute 9 Ounce595 Hobbvposy 118 Ounce359 EIobbpos IV 9 Ounce559 Hobby posy 1118 Ounce295 SULLIVAN HT #600 Starter2795 HII #601 Starter3095 HTI-24 #602 Starter3295 PLEASE NOTE Prices subject change manufacturers prices change AtI items subject asaitahitity time sale Prices effect untit next Modet Asintion Issue Show room prices may stightty higher Visit show room white San Antonio 100 discount price list refunded first order Shipping & Handling Prepaid orders $300 COD Credit Curd orders $595 tsersras orders add estimated shipping 25% deposit required first time COD 55% sates tas reqaired Tesas residents Persnat checks detay shippiag t5 days CL Scale/Boss Continued page 66 AMA rule book multi-stranded lines Details can found Page 17 Figure 3 1982-83 issue book However before proceed mak ing line terminations remove enough line insulating material unin sulated portion line passes around eyelet through soft brass copper tubing Tubing used make up lines shown photos 3A2-in OD soft brass just right size required three thicknesses 027-size line used Please note should let small length line about k out tubing before crimping tubing small line stub will used making electrical connection line Referring accompanying photos will notice piece /iv-in OD copper tubing about /2 5/o-in long has crimped small line stub Both ends line made same manner As noted above small piece copper tubing just added line ends will act electrical connection point seen photos alligator clip tached making connection switch control box Another method making electrical connections both ends might use Deans-type RC connectors case small lengths stranded wire can sol dered /i6-in OD copper tubing terminals Deans connector alligator clips should replaced other half connector would also advisable use Deans connector model end lines good solid connection Control line insulation accompanying photos sketch show couple sugges tions insulating lines control handle models bellcrank sys tem method shown nylon H-shaped insulators will have make insulators shown sketch have pull-tested 80 lbs dozens timeswhich sufficient Scale projects weigh 8-15 lb range Another very simple method insulating lines has suggested to slip small piece plastic tubing about -in long both ends large Luxon line clip shown photo plastic tubing shown tubing used connecting cylinder tank units Rom Air retracting gear system together ran some pull tests setup found method insulating lines should used models require less 40 lb pullnot because failure clips because higher pull-tests would cut plastic tubing thus mining sulation required between line handle bellcrank system Choose insulating system carefully model Continued page 162 DUAL PERSOKAUTY TRAINER GEMINIS BEAUTiFUL SUPER CHAMP CUSTOM TUNED ENGINES COMPETITION ACCESSORIES SPECIALISTS IN FINE TUNED COX TEE DEE AND REED VALVE ENGINES THROTTLED VERSIONS AVAILABLE CUSTOM PARTS FOR ALL CDX ENGINE& COMPLETE INVENTORY OF INDIVIDUAL STOCK PARTS FOR ALL CURRENT TD & MEDALLION ENGINES MANY PARTS FOR COLLECTORS OLD TfMER & NOSTALGIA FLYERS CUSTOM TUNING FOR ALL ENGINES HARD CHROMING OTHER COMPETITION ACCESSORIES FOR DETAILED BROCHURE SEND 75 TO EUSTOM ERAFTSMANSHIP PO BOX 2699 LAGUNA HILLS CA 92654 TELEPHON& 714 830-5162 160 Model Aviation IN STOCK FOR IMMEDIATE SHIPMENT New 30 CID QUADRA $19995 New 22 CtD QUADRA $10900 Run 22 QUADRA $9995 wiob Brinighatta Ftywheetnll995 Rug 22 QUADRA POWER ASSEMBLY ONLY08450 QUADRA REPAtR 000 pius paris Jim Mussur ERCOUPEPLANS $2395 KtT $23995 Jim Mussur TOMAHAWKPLANS $2395 KtT $25995 Jim Musser 9-BALL TRAtNER PLANS $1895 KIT $9595 BALSA BASSWOOD iatt siouni 35% OFF Connepo FLEET PLANS 02995 KtT $15995 COWL 51995 FLOATS 36115 seat cures 01795 comptune kin 03995 FLOATS 48 seatecorun 02195 comptune kin 04795 10 WWi WHEELS 02595 P&W CYLS FLEETn$2595 PLANS SUPER STEARMAN lOodtreyl $2995 STARDUSTER TOO V IBrisigheital J3 CUB Nuilto $2995 VOLKSPLANE IChickun Chartiel $2395 COCKPtT KtTS Tomahawk F4U1 Spinfire $2295 Ercoupe $2095 Snuarman 52295 Cinabria $2495 J3 cob $2195 ME-lOB 52295 Ftaat $2195 USOaadruFUELTANKSl6oz $e95 32oz $795 FtBERGLASS ARROW SHAFTS SliB 32 ong 6101000 24-Hour ser.. Add 5250 postage Send Bank Check Money Order JIM MESSERS QUALITY MODEL PRODUCTS 100 Valley View Dr Atleguny NY 14706 THE BEGINNERS KITTEN AND EXPERTS TIGER Revolutionary snap no wing eliminates bolts rubber bands Complete lilt $5495 dealer direct GEMINI MODELS INC P0 Box 1108 Possum NJ 07055 iie mojon air ix ii 05 rail nina htubtodatattad .r OUAORA92400 o 405O 4-CycIn mm 700 inner sunera ganscain pians Full sian 9 FOKKER DVltt 34 ca In 92500 9 PTl 9 Oaadra Kinrita 82BOO 9 PIPER L-4 IMittearo J3 CaSt Oaadra 93000 Sand canS chuckPlans sent roiled UPS POSTPAID ur monan ardar en Ioreign orders add 40% air wail TAYLOR-CRAFT Ound large sane Srnchores 01 LEE TAYLOR all Taniororas plans nnerings 2$ e Milton Aeenaa Ronantita CA 95679 Versatility last . tool modelers hove worted Master Jig 400 Versatile Model Aviatior wrote . doeo wore tricks tha, Houdini Ms lest Report concluded rugged well mode modelers accessory tool Model Airplane News cal led it. years better mousetrap es pain painting covering installing rth penny 9 wait over Order today Also available video tape Mosteriig 400 action along helpful building tips Great eis Meit TIDE DISTRIBUTORS Minto ND 5826t PO Boo 3t7/BCM 254 Phene 175l 24R35Bt Days 170t1 3522667 Evenings E Mosleriig 400t 2991 shippivg hovdlvg VHS video rope30T0 BETA video tope3TTT 2000 retovded t upe isretorved oolhv 30 days [1 FREE BROCHUnE LI VITA LI MASTERCARD LI CHECK NAME ADDRESS STATE ____________________________ZIP CL Scale/Boss Continbed page 160 building heavier 15 lb suggest devise better insulating system has suggested System operation systems operation based idea servo would operated time ie switch operates servo switch B oper ates servo B moving switches off center position appro priate servo will operate direction theother amount servo travel will directly related time switch held Operate position some reason wish control speed particular servo 50 200 ohm resistor can added switch box PC board shown last months wiring drawing Placing resistor circuit shown splits battery voltage between resistor servo motor causing motor operate lower rate speed Adjust resistor size produce de sired speedthe higher resistance lower servo speed resistor carbon /2-watt size available elec tronic supply shops few cents suggest resistor used Plus lead servo Minus lead servo C Placing resistor either lead servo B will also cause speed Servos C affected Further examiniation circuit draw ing some experimenting t switches will show servo can operated time example switches B operated simul taneously opposite directions servos B will operate simultaneously opposite directions No servos will operate switches B operated simul taneously same direction extreme situation will find operating switches C same di rection same time will cause servos operate same time As noted above intent operation system have servo operated time wish otherwise care system presented has based operation three servos using four lines nothing preventing making system two-servo oper ation thus eliminating problems con necting fourth line two-servo-only operation required eliminate switch C servo C associ ated wiring both ends will have terminate battery jack leads switch B move third line connection switch C position switch B bottom right terminal believe between discussion given material last months column major points building operating CL Electric Servo System have covered Some points did cover mounting servos Deans Continued page 164 Consumers Guide RC Aircraft Puoducts 242 Pages Photos 8 Descriptions over 2000 RC Aircraft Products fered 176 companies Outstanding Value Only $495 plus shipping0 Send $660 Includes UPS lingi Foretgn orders send $7SG US surface mail $1049 US air mail Catalogs companies would cost over 10 times price outstanding reference book product lines nearly major man ufacturer distributor importer well unique interesting products small companies seldom advertise national modeling magazines July 83 Model Aviation See Local Dealer Order Direct NAME AnnnFR Send check money order Censemera Guide 150 Oft St Hhrdaunburm VA 22801 H Crc9 SO0 780 Wing Area 564 Sq SENSOAR glider HOBBY HORN Euclusiver HOBBY HORN Kit SENSOAR Glider kit high quality kit MudNine cat S sanded parts Select quality balsa spruce Octailed plans written instructions THERMAL SLOPE 15 ELECTRIC POWER VALUE PRICED 51600 OLE lIMER Kti75 Full onR Partial tttsl P & W Sesi-Kita Corobined aitt full stripsvood plan Now mel Wire Window etc Mat Note may purchased Just oo semikilo mill plona--scnite colt priceo 8936 Buoeaneer94B1t 1538 Clipper MR i-73-539 8837 Oulluire SptserlOB-SBt 1840 Ruogwr-46- $27 0939 Mereury72--956 1931 Miss America-94---959 1961Playboy Jr-14-$39 1941 Playboy Sr-90-S46 1938Power House94-$43 8940 Sailplaoe-tS-- 074 1840So LonglOtIB 1938 Trentoo Terror-TY932 8839Zipper-Sd849 1939 Kardo Wukefleld-44- $17 MIDWAY MODEL CO Semi-kilo Combined vc/otrp 8936 Ptying Quaker94-$49 lO3TQaakerPlash-6t$30 1937 Long Cabin79$42 1930 Air Chiaf0l040 STRUCKS 1540 70 Spas 839 Sq uruler SEMI-KIT Combo IPulIl Kit$6300 SCALE PLANS DRAWINGS 5 50 HEINKEL HE tOlD 02 605 5t000 SH8PP8NO AND 84ANOLINO 64 Page CATALOOUE lip $900 odd $150 $200 PP/lot Ctoss $905 $2000 add $225 copy mill sent $2001 $4500 add 9300 freewhen requested $4501 $7000 add $250 order ond over $7000 add $400 BBY HORN CA- Addresaeeo add 0% tam ohubby specialties0 Send StO Vjsa/MC#Eopt0t73 Moran Street IA Cheek allow up 10 30 Boo 2202 days chock clearanceWestminster Ca 92083 COOEoact Charges 0 893B3tt Nd Cash OnlyIAIl UPS] 01 8958203 162 Model Aviation nundreds New Products r ALL PHASE ART Best Custom Screen Sportswear Designs Available Designs Direct Print eat transfer Newest Laser ,A3 Navy Jet rs Wide Choice Shirt Styles Colors Sizes Send $100 Illustrated Brochure name aadtvss citystatezip designsizecolor See us NEW STORE drop booth WRAM Show White Plains NY IFeb 25-281 Roanoke IVAI Valley Auction & Swap Shop IMBr 31 central PA Aeromodelers Flea Market IMar 101 TO ORDER Send check money order ladd 10% postagelhandling MD res 5% taxI Phase Art Village Sq Shopping Center Route 5 South Waldorf MD 20601 1301 8433050 MasterCard & Visa Accepted line-connector model attachment fourth line both model control handle will leave construction installation items own ingenuity last thought before closing has comments need additional infor mation about project would too glad hear Good luck Send CL Scale items Bill Boss 77-06 269th Sr New Hyde Park NY 11040 CL Navy Carrier/Perry Continued page 67 plain hap nose-down pitching moment will about half pro duced plain flap 1 have run tests comparing full-stall low-speed performance flaps What have noticed however models consistently fly seven eight miles per hour light winds have flaps can make own conclusions own observations Putting flaps airplane rather straightforward task Probably common way operating flaps use standard horn arrangement push/pull rod connected arm tailhook Ive used wide variety hinges tube-andwire through full range commercial hinges hinges made iron-on Mylar covering oh convenient hinges Ive used last two models onepiece polypropylene hinge Full Com mand Systems 908 E Rosewood Spokane WA 99208 Because no hinge pins no sliding surfaces cant harm hinge inadvertently getting CyA glue epoxy paint hinge line light very stronga good characteristic flaps actuated tailhook Wings have straight hinge line must have divided flaps F4U Cor sair three flap segments per wing An easy way connect flap segments shown accompanying photo segment contains Vi6-in OD brass aluminum tube mounted near trailing edge other flap segment has 0025 wire tached extending across break tube wire can bend slide within tube allow movement tween segments Richard L Perry 7578 Vogels Way Springfield VA 22153 CL Racing/Ballard Continued oaoe 68 amount fuel engine receives prime tube works independently fuel shutoff fuel shutoff does have open engine receive prime think majority problems develop fuel shutoff open during filling process allowing large amount fuel injected carburetor and/or Fine Quality Flying Models Catalog Si 50 98 RUBBER POWER KITSI plus Gliders C/L R/C Accessories Books MAJESTIC MODELS 3273 West 129th Street Cleveland Ohio 44111 FREE 1984 Catalog tools Hobbyist Miniature lathes Milling/drilling machines Jig & circular saws Styrofoam cutter W1i hobby products co PO Box 07846 Columbus OH 4320 HOOOYHTDEAWAYHOBOYHIEAWAYHOOBYHIDEAWAYHOOBYHIOEAWAi FAMOUS BRITISH DIESELS AEROMODELLER PLANS SPARES FOR M/E PAW 0/C 3rd PRINTING CATALOG - DIESEL HANDBOOK $350 pp HOBBY HIDE WAY DELAVANIL 309 244-7389 61734 HOOOYIIIOEAWAYHOBOYHTDEAWAYIIOBOYHIDEAWAYFIOOOYHIDEAW 164 Model Aviation Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant * Constantly monitors receiver interference another trans mitter outside sources instantly reducing throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo Case Power 17 ma Volt Cut-Out Point 46 volts Pulse Width Range Adj 0628 milliseconds Systems 3 4 wire Temp Range 00 1400 F Weight 12 oz Price $4795 Postpaid Specify connector type positive negative pulse ordering RF Enterprises 106 N Main St. Arlington OH 46814 419 355-5065 GIANT SCALE & SPORT PLANS SETS & KITS order contains concise construction manual Partial kits include precut wing ribs fuselage formers prebent landing gear already have plan sets may deduct 1000 prices partial kits listed below Fiberglass parts f,lI kits Travel Air D 4000 j 8 Special MK4 convertible 84 Monoplane 78 Siplane Weighs 18 lbs Low Wing elpiane & Parasol Plans $1700Plans $1700 Partial Kit $8500 EitherSoth Partial Kit $9500 Travel Air 2000 105 classic Scale niplane Wt 23 lbs Plans $1700 Partial Kit $13000 Travel Air 4000 99 Radial Eng Classic Siplane 23 lbs Plans $1700 Partial Kit $13000 Fokker 0-VII 58 German WWI Fighter elplane 23 lbs Plans $1700Partial Kit $13000 Sopwith Tripehound80WWI Triplane 17 lbs Plans $1700Partial Kit $14000 Sopwith Pup80 WWI Siplane16-17 lbs Plans $1700 Partial Kit $13000 WACO uPF-790 Siplane 23 lbsPlans $1700 Airplanes LandingGear 2wireformedonly$995 r $1shipping Assembled ready install $1995 ipping IWbeel Pants models add $51 Cabanas$995 hipping Fokker Cabanas$1495 hipping Hardware Packageincludes famous 8ehrens strut system$11 95PP Ordering information orders shipped uS Parcal Post add $3 shipping plans $10 kits Make checks payable Jerry eehrens fastest service send Postal Money Order bank check Sorry no COOs accepted Send mail orders BEHRENS PLAN SERVICE 3127 Healy Ave Far Rockaway NY 11691 Phone 12121 337-6987 Allow 4-6 weeks delivery g BALANCt IC ALL UlHtIIlUN Heres equipment yuu need give props sey bes balance--balance directions Carefully crafted tsp grad materials BUBBLE BALANCER accomodates 3/161/49/32 prol holes Other sizes available us special order Dealers invited $1795 AddStOOfar HOWARD B HUEBL OEPT$O postage handling Miss 6% sales tan Na CODs Seo 82 St 6 Monkate MN 5600
Edition: Model Aviation - 1984/03
Page Numbers: 66, 160, 162, 164
Control Line SCALE Bill Boss CL ELECTRIC SERVO SYSTEM Part II last months column covered con struction systems switch box its wir ing attachment G-S Roberts control handle month will show modify servos electric-only operation control speed servos give some suggestions insulate control lines control handle planes control system control box item have talked about yet use 50-200 ohm resistor shown wiring sketch will cover its use talk about overall system oper ation later text Servos servos used system standard RC servos electronics removed case system shown servos modified used Ed Jacoby Futaba system no longer uses Modification servos easily accomplished removing screws usually four hold lower portion servo case place lower half case removed electronics servo motor should view has done remove electronics unsolder two three wire connections Plus Minus possibly Ground motor sure use low-wattage soldering iron 25-45 watts working servo leads too much heat may cause damage either servo motor electronics being removed electronic unit removed re connect new leads 8-10 long Plus Minus terminals servo motor pass through servo case rubber grom met reinstall lower half servo case suggest use same color wire say red Plus leads black Minus leads Note using colored wire will help eliminate confusion about leads Plus Minus making con nections PC board servos used complete proceed wire piece PC board shown wiring drawing included last months column After ser vos wired PC board will have add four leads will used make connection control lines wing tip length leads will de pend size models wing Warning use stranded wire leads because withstands vibration much better solid wire dont want install servos complete plane after two flights find something doesnt work due broken wire inside plane have explained modify complete working RC servo other approach providing servo system might want explore look ing through some RC supply catalogs will find companies such Litco Ace RC have available parts servo cases mechanics motors can purchased separately used assemble servos needed project Pur chasing servo parts manner no electronics will reduce cost servos project 30% 40% Control lines Now have completed control handle switch-box servo units lets look line construction con nection control handle models servo units nothing special about basic make-up control lines other fact will made sulated line have determined overall length lines simply follow line-construction procedures outlined Continued page 160 Heres make heavy-duty control line Insulator shown other photo Theres Information column 66 Model Aviation roibo Two types OT line Insulators upper although simple shouldnt used models needing 40-lb pull-test lower Insulator handmade nylon block has used reliably models needIng pull-tests over 80 lb Control lines must insulated too 16 I- - 1~WLP-L~L~NO52 DRILL HOLE16 2 3 _______________ 4 NYLON INSULATING LINE CONNECTOR ILZUZL 861 Isunt RoadSan Antonio TX 78216 512 341-6712 FUTABA 7FGK FM23395 6FGK FM19995 7FGK TX-MOD18495 6FGK TX-MOD16495 5FGK TX-MOD15495 6FGTX-MOD15495 4FGTX-MOD14995 4L 3-S/2810495 2F 2/S-28-R4H7495 5-28SERVO1895 S-32SERVO2595 COVERINGS Monokote Opaque 3 Rolls1695 Monokote Trans 3 Rolls1695 Monokote Met 3 Rolls2095 CYANOACRYLATE Hol Staff HO-I e169 Hot Sluff HST-t e169 Hot Stuff HS-4 2 Ounce589 Hot Stuff HST4 2 Ounce589 Hot Shot245 Jet Ounce179 Super jet Ounce179 Jet 2 Ounce599 Super Jet 2 Ounce599 EPOXY GLUE tescou 30 Minute 9 Ounce595 Descon 5 Minute 9 Ounce595 Hobbvposy 118 Ounce359 EIobbpos IV 9 Ounce559 Hobby posy 1118 Ounce295 SULLIVAN HT #600 Starter2795 HII #601 Starter3095 HTI-24 #602 Starter3295 PLEASE NOTE Prices subject change manufacturers prices change AtI items subject asaitahitity time sale Prices effect untit next Modet Asintion Issue Show room prices may stightty higher Visit show room white San Antonio 100 discount price list refunded first order Shipping & Handling Prepaid orders $300 COD Credit Curd orders $595 tsersras orders add estimated shipping 25% deposit required first time COD 55% sates tas reqaired Tesas residents Persnat checks detay shippiag t5 days CL Scale/Boss Continued page 66 AMA rule book multi-stranded lines Details can found Page 17 Figure 3 1982-83 issue book However before proceed mak ing line terminations remove enough line insulating material unin sulated portion line passes around eyelet through soft brass copper tubing Tubing used make up lines shown photos 3A2-in OD soft brass just right size required three thicknesses 027-size line used Please note should let small length line about k out tubing before crimping tubing small line stub will used making electrical connection line Referring accompanying photos will notice piece /iv-in OD copper tubing about /2 5/o-in long has crimped small line stub Both ends line made same manner As noted above small piece copper tubing just added line ends will act electrical connection point seen photos alligator clip tached making connection switch control box Another method making electrical connections both ends might use Deans-type RC connectors case small lengths stranded wire can sol dered /i6-in OD copper tubing terminals Deans connector alligator clips should replaced other half connector would also advisable use Deans connector model end lines good solid connection Control line insulation accompanying photos sketch show couple sugges tions insulating lines control handle models bellcrank sys tem method shown nylon H-shaped insulators will have make insulators shown sketch have pull-tested 80 lbs dozens timeswhich sufficient Scale projects weigh 8-15 lb range Another very simple method insulating lines has suggested to slip small piece plastic tubing about -in long both ends large Luxon line clip shown photo plastic tubing shown tubing used connecting cylinder tank units Rom Air retracting gear system together ran some pull tests setup found method insulating lines should used models require less 40 lb pullnot because failure clips because higher pull-tests would cut plastic tubing thus mining sulation required between line handle bellcrank system Choose insulating system carefully model Continued page 162 DUAL PERSOKAUTY TRAINER GEMINIS BEAUTiFUL SUPER CHAMP CUSTOM TUNED ENGINES COMPETITION ACCESSORIES SPECIALISTS IN FINE TUNED COX TEE DEE AND REED VALVE ENGINES THROTTLED VERSIONS AVAILABLE CUSTOM PARTS FOR ALL CDX ENGINE& COMPLETE INVENTORY OF INDIVIDUAL STOCK PARTS FOR ALL CURRENT TD & MEDALLION ENGINES MANY PARTS FOR COLLECTORS OLD TfMER & NOSTALGIA FLYERS CUSTOM TUNING FOR ALL ENGINES HARD CHROMING OTHER COMPETITION ACCESSORIES FOR DETAILED BROCHURE SEND 75 TO EUSTOM ERAFTSMANSHIP PO BOX 2699 LAGUNA HILLS CA 92654 TELEPHON& 714 830-5162 160 Model Aviation IN STOCK FOR IMMEDIATE SHIPMENT New 30 CID QUADRA $19995 New 22 CtD QUADRA $10900 Run 22 QUADRA $9995 wiob Brinighatta Ftywheetnll995 Rug 22 QUADRA POWER ASSEMBLY ONLY08450 QUADRA REPAtR 000 pius paris Jim Mussur ERCOUPEPLANS $2395 KtT $23995 Jim Mussur TOMAHAWKPLANS $2395 KtT $25995 Jim Musser 9-BALL TRAtNER PLANS $1895 KIT $9595 BALSA BASSWOOD iatt siouni 35% OFF Connepo FLEET PLANS 02995 KtT $15995 COWL 51995 FLOATS 36115 seat cures 01795 comptune kin 03995 FLOATS 48 seatecorun 02195 comptune kin 04795 10 WWi WHEELS 02595 P&W CYLS FLEETn$2595 PLANS SUPER STEARMAN lOodtreyl $2995 STARDUSTER TOO V IBrisigheital J3 CUB Nuilto $2995 VOLKSPLANE IChickun Chartiel $2395 COCKPtT KtTS Tomahawk F4U1 Spinfire $2295 Ercoupe $2095 Snuarman 52295 Cinabria $2495 J3 cob $2195 ME-lOB 52295 Ftaat $2195 USOaadruFUELTANKSl6oz $e95 32oz $795 FtBERGLASS ARROW SHAFTS SliB 32 ong 6101000 24-Hour ser.. Add 5250 postage Send Bank Check Money Order JIM MESSERS QUALITY MODEL PRODUCTS 100 Valley View Dr Atleguny NY 14706 THE BEGINNERS KITTEN AND EXPERTS TIGER Revolutionary snap no wing eliminates bolts rubber bands Complete lilt $5495 dealer direct GEMINI MODELS INC P0 Box 1108 Possum NJ 07055 iie mojon air ix ii 05 rail nina htubtodatattad .r OUAORA92400 o 405O 4-CycIn mm 700 inner sunera ganscain pians Full sian 9 FOKKER DVltt 34 ca In 92500 9 PTl 9 Oaadra Kinrita 82BOO 9 PIPER L-4 IMittearo J3 CaSt Oaadra 93000 Sand canS chuckPlans sent roiled UPS POSTPAID ur monan ardar en Ioreign orders add 40% air wail TAYLOR-CRAFT Ound large sane Srnchores 01 LEE TAYLOR all Taniororas plans nnerings 2$ e Milton Aeenaa Ronantita CA 95679 Versatility last . tool modelers hove worted Master Jig 400 Versatile Model Aviatior wrote . doeo wore tricks tha, Houdini Ms lest Report concluded rugged well mode modelers accessory tool Model Airplane News cal led it. years better mousetrap es pain painting covering installing rth penny 9 wait over Order today Also available video tape Mosteriig 400 action along helpful building tips Great eis Meit TIDE DISTRIBUTORS Minto ND 5826t PO Boo 3t7/BCM 254 Phene 175l 24R35Bt Days 170t1 3522667 Evenings E Mosleriig 400t 2991 shippivg hovdlvg VHS video rope30T0 BETA video tope3TTT 2000 retovded t upe isretorved oolhv 30 days [1 FREE BROCHUnE LI VITA LI MASTERCARD LI CHECK NAME ADDRESS STATE ____________________________ZIP CL Scale/Boss Continbed page 160 building heavier 15 lb suggest devise better insulating system has suggested System operation systems operation based idea servo would operated time ie switch operates servo switch B oper ates servo B moving switches off center position appro priate servo will operate direction theother amount servo travel will directly related time switch held Operate position some reason wish control speed particular servo 50 200 ohm resistor can added switch box PC board shown last months wiring drawing Placing resistor circuit shown splits battery voltage between resistor servo motor causing motor operate lower rate speed Adjust resistor size produce de sired speedthe higher resistance lower servo speed resistor carbon /2-watt size available elec tronic supply shops few cents suggest resistor used Plus lead servo Minus lead servo C Placing resistor either lead servo B will also cause speed Servos C affected Further examiniation circuit draw ing some experimenting t switches will show servo can operated time example switches B operated simul taneously opposite directions servos B will operate simultaneously opposite directions No servos will operate switches B operated simul taneously same direction extreme situation will find operating switches C same di rection same time will cause servos operate same time As noted above intent operation system have servo operated time wish otherwise care system presented has based operation three servos using four lines nothing preventing making system two-servo oper ation thus eliminating problems con necting fourth line two-servo-only operation required eliminate switch C servo C associ ated wiring both ends will have terminate battery jack leads switch B move third line connection switch C position switch B bottom right terminal believe between discussion given material last months column major points building operating CL Electric Servo System have covered Some points did cover mounting servos Deans Continued page 164 Consumers Guide RC Aircraft Puoducts 242 Pages Photos 8 Descriptions over 2000 RC Aircraft Products fered 176 companies Outstanding Value Only $495 plus shipping0 Send $660 Includes UPS lingi Foretgn orders send $7SG US surface mail $1049 US air mail Catalogs companies would cost over 10 times price outstanding reference book product lines nearly major man ufacturer distributor importer well unique interesting products small companies seldom advertise national modeling magazines July 83 Model Aviation See Local Dealer Order Direct NAME AnnnFR Send check money order Censemera Guide 150 Oft St Hhrdaunburm VA 22801 H Crc9 SO0 780 Wing Area 564 Sq SENSOAR glider HOBBY HORN Euclusiver HOBBY HORN Kit SENSOAR Glider kit high quality kit MudNine cat S sanded parts Select quality balsa spruce Octailed plans written instructions THERMAL SLOPE 15 ELECTRIC POWER VALUE PRICED 51600 OLE lIMER Kti75 Full onR Partial tttsl P & W Sesi-Kita Corobined aitt full stripsvood plan Now mel Wire Window etc Mat Note may purchased Just oo semikilo mill plona--scnite colt priceo 8936 Buoeaneer94B1t 1538 Clipper MR i-73-539 8837 Oulluire SptserlOB-SBt 1840 Ruogwr-46- $27 0939 Mereury72--956 1931 Miss America-94---959 1961Playboy Jr-14-$39 1941 Playboy Sr-90-S46 1938Power House94-$43 8940 Sailplaoe-tS-- 074 1840So LonglOtIB 1938 Trentoo Terror-TY932 8839Zipper-Sd849 1939 Kardo Wukefleld-44- $17 MIDWAY MODEL CO Semi-kilo Combined vc/otrp 8936 Ptying Quaker94-$49 lO3TQaakerPlash-6t$30 1937 Long Cabin79$42 1930 Air Chiaf0l040 STRUCKS 1540 70 Spas 839 Sq uruler SEMI-KIT Combo IPulIl Kit$6300 SCALE PLANS DRAWINGS 5 50 HEINKEL HE tOlD 02 605 5t000 SH8PP8NO AND 84ANOLINO 64 Page CATALOOUE lip $900 odd $150 $200 PP/lot Ctoss $905 $2000 add $225 copy mill sent $2001 $4500 add 9300 freewhen requested $4501 $7000 add $250 order ond over $7000 add $400 BBY HORN CA- Addresaeeo add 0% tam ohubby specialties0 Send StO Vjsa/MC#Eopt0t73 Moran Street IA Cheek allow up 10 30 Boo 2202 days chock clearanceWestminster Ca 92083 COOEoact Charges 0 893B3tt Nd Cash OnlyIAIl UPS] 01 8958203 162 Model Aviation nundreds New Products r ALL PHASE ART Best Custom Screen Sportswear Designs Available Designs Direct Print eat transfer Newest Laser ,A3 Navy Jet rs Wide Choice Shirt Styles Colors Sizes Send $100 Illustrated Brochure name aadtvss citystatezip designsizecolor See us NEW STORE drop booth WRAM Show White Plains NY IFeb 25-281 Roanoke IVAI Valley Auction & Swap Shop IMBr 31 central PA Aeromodelers Flea Market IMar 101 TO ORDER Send check money order ladd 10% postagelhandling MD res 5% taxI Phase Art Village Sq Shopping Center Route 5 South Waldorf MD 20601 1301 8433050 MasterCard & Visa Accepted line-connector model attachment fourth line both model control handle will leave construction installation items own ingenuity last thought before closing has comments need additional infor mation about project would too glad hear Good luck Send CL Scale items Bill Boss 77-06 269th Sr New Hyde Park NY 11040 CL Navy Carrier/Perry Continued page 67 plain hap nose-down pitching moment will about half pro duced plain flap 1 have run tests comparing full-stall low-speed performance flaps What have noticed however models consistently fly seven eight miles per hour light winds have flaps can make own conclusions own observations Putting flaps airplane rather straightforward task Probably common way operating flaps use standard horn arrangement push/pull rod connected arm tailhook Ive used wide variety hinges tube-andwire through full range commercial hinges hinges made iron-on Mylar covering oh convenient hinges Ive used last two models onepiece polypropylene hinge Full Com mand Systems 908 E Rosewood Spokane WA 99208 Because no hinge pins no sliding surfaces cant harm hinge inadvertently getting CyA glue epoxy paint hinge line light very stronga good characteristic flaps actuated tailhook Wings have straight hinge line must have divided flaps F4U Cor sair three flap segments per wing An easy way connect flap segments shown accompanying photo segment contains Vi6-in OD brass aluminum tube mounted near trailing edge other flap segment has 0025 wire tached extending across break tube wire can bend slide within tube allow movement tween segments Richard L Perry 7578 Vogels Way Springfield VA 22153 CL Racing/Ballard Continued oaoe 68 amount fuel engine receives prime tube works independently fuel shutoff fuel shutoff does have open engine receive prime think majority problems develop fuel shutoff open during filling process allowing large amount fuel injected carburetor and/or Fine Quality Flying Models Catalog Si 50 98 RUBBER POWER KITSI plus Gliders C/L R/C Accessories Books MAJESTIC MODELS 3273 West 129th Street Cleveland Ohio 44111 FREE 1984 Catalog tools Hobbyist Miniature lathes Milling/drilling machines Jig & circular saws Styrofoam cutter W1i hobby products co PO Box 07846 Columbus OH 4320 HOOOYHTDEAWAYHOBOYHIEAWAYHOOBYHIDEAWAYHOOBYHIOEAWAi FAMOUS BRITISH DIESELS AEROMODELLER PLANS SPARES FOR M/E PAW 0/C 3rd PRINTING CATALOG - DIESEL HANDBOOK $350 pp HOBBY HIDE WAY DELAVANIL 309 244-7389 61734 HOOOYIIIOEAWAYHOBOYHTDEAWAYIIOBOYHIDEAWAYFIOOOYHIDEAW 164 Model Aviation Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant * Constantly monitors receiver interference another trans mitter outside sources instantly reducing throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo Case Power 17 ma Volt Cut-Out Point 46 volts Pulse Width Range Adj 0628 milliseconds Systems 3 4 wire Temp Range 00 1400 F Weight 12 oz Price $4795 Postpaid Specify connector type positive negative pulse ordering RF Enterprises 106 N Main St. Arlington OH 46814 419 355-5065 GIANT SCALE & SPORT PLANS SETS & KITS order contains concise construction manual Partial kits include precut wing ribs fuselage formers prebent landing gear already have plan sets may deduct 1000 prices partial kits listed below Fiberglass parts f,lI kits Travel Air D 4000 j 8 Special MK4 convertible 84 Monoplane 78 Siplane Weighs 18 lbs Low Wing elpiane & Parasol Plans $1700Plans $1700 Partial Kit 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BALANCt IC ALL UlHtIIlUN Heres equipment yuu need give props sey bes balance--balance directions Carefully crafted tsp grad materials BUBBLE BALANCER accomodates 3/161/49/32 prol holes Other sizes available us special order Dealers invited $1795 AddStOOfar HOWARD B HUEBL OEPT$O postage handling Miss 6% sales tan Na CODs Seo 82 St 6 Monkate MN 5600