George Myers SAY GEORGE going quit playing red box get back Hying like rest us stop having much fun doing what Im doing thats August 1980 column dealt construc tion standard Ace A/C Silver Seven trans mitter kit inside customized box example what might Silver Seven Designers Package available kit formn Ace R/C Inc Box ShE Higgins yule MO 64037 promised con tinue stage 2 customizes electronics Fundamental customnizing process design dual mixer discussed greatest pleasures came replac ing Log Amp exponential function board Aces Single MixerKit 11 G505 air plane used study S7 features perform ance old glider tug reinforced Quickee 500 sits oversize landing gear powered 05 61 FSR used several years racer sport flier before conversion glider-tug function See MA Jan 80 pg 56 Better MousetrapHigh Tow Tim Myers has now performed over 250 times problem However six-pound landing weight causes airplane come down final approach nose-high atti tude result tail-bumper strikes first get lot rabbit landings know hopping down runway guessed flapperons might improve situation would need mixer could mechanically knew electronic would suit purposes better Openers retired no way forgotten Bill added another servo airplane Now servo left strip aileron second servo right extra servo plugged Flap socket sixchannel receiver Back inside transmitter installed Ace mixer wired mix aileron flap control signals hi-directionally Flap input now caused both ailerons move same direction Aileron signal caused move opposite directions Both actions could take place same time rigged setup produce 200 flap deflection offsets 200 aileron flaps up 200 Up 100 Down flaps fully extended produced balanced control action Set airplane up final approach Adjust power acceptable rate sink Note usual nose-high attitude Lower flaps Note nose drops level attitude sink rate remains same Watch airplane touch down wheels Oh joy didnt Ido before Because other transmitter doesnt allow mixing thats much success hand decided 14 Model Aviation Its done mirrors Compare Aces neat PC wiring messier Myers point-topointwiring spite appearances both work same Ace single mixer includes three pots six resistors Myers Dual Mixer doesnt need because Dual Mixer designed work Log Amp board mounted elsewhere includes thetrim adjust function photos figures month Timothy J Myers ne giiaer tug ax xoucnaown witfl tiapperons 30 deg deflection automatic up ele vator trim compensation shadow shows level landing attitude youll have take word fact plane going slowly would have nose 10 deg higherwith no flap deflection Myers Dual Mixer board installed Myers S7 transmitter Note 8-pin Deans connector cutto seven pins has installed place intended forthejumperwires Details mod will appear next month switch jumper setup flapperon/elevator auto-trim installation glider tug described text try readjusted mixer produce 300 flap deflection 80 120 aileron flaps down First landing setup bit steeper approach like falling out tree Well get used change gives new dimension control Ace Single Mixer makes mixing two signals eg flap aileron easy stock 57 arrangments permit exponential single mixer wanted system provide ex ponential control two mixers some modi fications order first modification compact two Ace mixers onto board second install Log Amp board another location modify encoder board divert control signals through later column will describe second modification have installed working now interesting thing dual mixers combining XPO signal LIN signal no problems doing reason Ace Silver Seven other transmitter uses NE5044 chip will obsolete previous transmitters simply control functions parallel con tinuous analog voltages Its easy mix combine Previous transmitter designs used string dominoes approach control signal generation time got flap function instance aileron control signal gone forgotten Thats dont have mixers also explains cant use Ace mixer old-design radio think now will simply drop mixer S7 go flying forget things little bit complicated have consider way servo wants turn have think about much servos equai dont equal things glven control signaL Sufficient adjustments provided deal problem will have make adjustment interconnect two mixers shown end up three times things account Take knowswhen get things working way want write down want duplicate future can example code final mixer adjustments connections looks like FM1A&M2AY Flap control signal goes Mixer 1 input Mixer 2 input via adapter code continues AM1 B E- M2B M11-C1 means Mixer 1 output 1 goes control input 1 M12*C6 Ml bi means Mixer 1 switched bi-directional mode M21X Xnot used M22-C2 M1A130 Mixer 1 input attenu ator set 130 oclock M1B200 Ml C 1200 Balance pot centered M2A 1100 M2B130 M2C1130 M2uni M2 uni-directional mode SER Elevator servo reversed SANRt aileron servo has normal rotation operates right-hand strip aileron SFRLt A1 R X 1100 flap control normal rate position reversing switch reverse position exponential function engaged servo throw adjustment 1100 oclock operates left-hand strip aileron E1 N L 1000 F800 300 arent bored lost point must skimming Only person has fighting dual mixers would care However point flaps caused nosedown pitch rectified mixing flap elevator signals second mixer second point mixing adjust ing done screwdriver inside trans mitter very simple convenient Continued page 100 K-- S 7/8 /2 C F NO NS 8-PIN S CON NECT0R~t AIB 11112 IN OUT i IEEE Si ITEM Ri Cl R2 C2 R3 C3 FM C4 R5 CS R6 C6 R7 C7 R8 c8 R9 RiO Ru Cii R12 Ci 2 Wire Wire Wire Wire Wire Wire Wire Wire Wire Wire parts layout map tar mixer doesnt have neat must righti VALUE 50K pot OOlmfd 50K pot 001 51K 001 10K 001 51K 001 51K 001 51K 001 51K 001 51K 001 50K 001 51K 05 27K 05 30 gage 30 gage 30 gage 30 gage 30 gage 30 gage 30 gage 30 gage 30 gage 30 gage G-RS 14 3 3 vipI 2 N w II I0 9 78 c q 1-1/16 01 o2 R 10 0 0 R8 VP 00 PARTS LAYOUT MAP FOR ONE MIXER ASSEMBLE CAREFULLY FROM Bin Pin 2 Pin 7 Pin 1 Pin 1 Pin8 Pin 8 Pin 1 Pin 13 Pin 6 Pin 6 PIn 1 Pin 8 Pin 8 Pin8 Pin 13 Pin 13 Pin 6 Pin 6 Pin 14 Output 1 Pin 7 Output 2 Output 1 5 VDC 0 VDC 211 VDC 211 VDC 211 VDC 211 VDC Input pin Input pin B Pin 4 TO Pin 2 Ground Pin 9 Ground Pin 2 Pin 2 Pin 9 Pin 9 Pin 13 Ground Pin 8 Ground Pin 6 Ground Switch pin 1 Pin 12 Pin 14 Pin 14 Pin 7 Pin 7 Output 1 Ground Output 2 Ground Switch pin 2 Switch pin 3 Pin 11 Ground Pin 3 Pin 5 Pin 10 Pin 12 Free leg R2 Free leg Ri Switch pin 4 0 3 4 6 7 Ov 5V REMARKS Tie wiper leg Tie wiper leg WIRING TABLE FOR ONE MIXER Tie wiper leg A-B B output AB output Uni-/Bi Switch Power ON/OFF switch October 1980 15 THE E 40 Engines up Winning Ideas FOURMOST RETRACTABLE ITOW HOOK RELEASE Price S 690 rYL lest reliable device available After line released hook retracts body unit leaving SMOOTH surface bottom aircraft No special attachments required iVeight Y oz 0491051 AIRFLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE s25O U7 IDEAL FOR QUICKY 500 PRICE IRFLO ENGINE MOUNT OTHER FOURMOST PRODUCTS Fuel Fitting Sets Fuel Shut Off Fuel Manifold Gapless Hinges Gapless Hinge Slotter Strut Fairings Cockpit Coaming FUR~ST Sand SASE Complete Information 4040 24th Ave Forest Grove OR 97116 PRODUCTS Phone 503 3572732 make Speaking Phineas Pinkham did atributeto joker pulp fan-zine few years back received nice note mentor author Joe Archibald prolific writer great cartoonist Well Phineas would say fractured French Adoo Bud Overn Santa Ana CA Memories Dakota very flyable Free Flight bipe will live forever seems think Bud saying something significant relates modified version flew well unmodi fied Rubber-power profiles indeed fun some guys use test- bedsforworking out bugs bigger models usually Scale have article Don Srull coming up explains does andfeatures aplan rubber-powerprofile Japanese Navy Shinden RC Milestones Just back England lot report Ducted Fans am now catching up reading letter D B Mathews thinks Super Brigadier first trainer before Live Wire Beam over year important its always omission problems such articles think Plecan should have mentioned Joe Raspantes Monster Buccaneer 1939 first digital control RC proportional used telephone dial system dial 0 wipe out controls return neutral two-speed Forster 99 powered it shown back Berkeleys 1940 catalog Joe potential win Nats Good Brothers flying experience Also milestone Hank Strucks 2-in scale Cessna 170 Berkeley kit probably first RC log 100 hours Hanks Busterstill flying probably first Quarter-Scale RC well-known beginning Galloping Ghost era Bill Johnkes Impulse terrific trainer didnt go over commercially Bill Effinger Atlanta GA think Paul Plecan has earned high marks Milestones RC July issue articles like always brace selves onslaught suggestions ofmodels should have included knew woul4 Plecan did very careful work might know Bill Effinger headed up Berkeley Models years During its heyday Berkeley probably biggest US kit maker jf biggest world Quarter-Scale England May congratulate fine magazine have reading AMAs official publica tion some time now however May June 1980 issues have really taken eye particular Henry Hafikes -scale Gee Bee Senior Sportster Model Y would therefore consider honor would send plans -scale model Plan Number 299 One-fourth scale just beginning take off country have almost completed -scale Cub built Sid Morgans plans Power will Webra 91 radio will Kraft hopefully next -scale model will Gee Bee PS Please keep up good work James Bunke Desford Leicester England Radio Technique/Myers Continued page 15 need dual mixer helicopter job What need limited imagina tion Should desire build other ways sure following 1 Buy two Ace mixer kits 11 G505 two 8-pin Deans connectors couldnt find catalog Ace has Also pack hookup wire 50L520 2 Buy wire-wrap tool some 30-gage wrapping wire Radio Shack tool #276-15 70A instructions using back way stop winding four turns Buy 4-DIP switch 3 Buy #67 twist drill somethingto turn dont already have Youll need #60 too 4 1-in square pert-board makes handy drill guide can live Begin installing 17 mini-pins mixer boards_Then use single-edge razor blade peel scrape rest PC material off board including words sorry Ace Next drill 8 x 12 pattern holes #67 next row pins Remember leave room sockets will under board cut T-shaped opening center board File hole very carefully 8-pin Deans socket will fit tightly half submerged theyre tapered ZAP place 100 Model Aviation AEMO COMMANDER 112 Fiberglass Fuselage Molded Interior Foam Cores & Metal Engine Mount 3-Formed Gears Hardware Span 40 60 Engines 4-6 1/C Channels $15995 Phone 516 542-7726 THE V-TAILED VIANA Foam Cores & balsa skins Formed Gear & Canopy 40 50 Engines 54 Wingspan 590 Sq $6995 RP 167B New Highway North AmItyvIll NY 11701 Cut solder tails off Deans about 1/16-in high Now drop components mixer holes side board used socket IC isnt necessary arrangement resistors capacitors isnt critical make little like should easy wire Make map components label start wiring point-to-point according wiring table Check off point wiring table wrap fail dont tell troubles advantage point-topoint wiring can get very compact arrangement parts disadvantage can get hopelessly lost fail make map follow wiring table String grounds single connection 0 volt pin again other mixer Drill eight *67 holes center empty space DIP switch used two switches turn mixers on/off other two uni-/bi-directional switching Arrange pots satisfaction drill 18 holes *60 Continue wiring point point forgot mention above wiring goes lot easier clip leads components about re doing wirewrapping can wrap over other wraps stack Solder everything after youre sure its working righ4 watch out solder bridges make mistake Radio Shack sells copper braid called Solder Wick Lay joint heat iron solder flows miraculously off joint wick Clip discard used wick Ive run out space Youll see photos installed other Deans socket Silver Seven encoder board make patch panel Next month Ill tell rye received some letters complaining dont give prices addresses stuff use knows about prices days pay what ou must Ill tell bought special stuff have past rest can get hobby dealer doesnt have stock give him chance get before go mails word caution build install Myers Dual Mixer Silver Seven dont send Ace repair Wit doesnt ot work home brew item like build strictly own Keep letters coming George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Trainer Tray/Morris Continued page 18 handrest runners until mechanical interconnection between sticks complete way can align parts ensure parallel sticks -in square brass connecting tube nice close fit over knuckle 12 inch overall length connector tube has proven exactly right length Some wise guys quick point out 12 inches standard length tubing sold Lucky wasnt Anyway use square Swiss file notch ends being careful touch inside walls Solder brass reinforcing place Bevel outside edges round corners make look nice knuckle pin hole drilled later along knuckle Cut knuckle length square up ends After knuckle pin hole drilled ends can rounded Lay Out center large hole drill carefully preferred tool drilling stick knuckle pin holes drill press Remove knob stick make sure stick snugly seated its gimbal Scribe line across diameter stick parallel pitch control arc Fig 1 large drawing line used align stick knuckle drilling Slide knuckle position connector tube drill knuckle pin hole Keeping things square important tricky part construction drilling sticks position knuckle stick lightly clamp Adjust stick align scribed line holes knuckle drop C adhesive used stabilize parts Using hole knuckle guide drill stick Repeat process other stick cant get drill rod knuckle pin sacrifice shank drill used making holes Its much easier assemble parts knuckle pin inch over long trim length cut-off wheel after assembly Assemble transmitter stick knuckle con nector tube pin screw stick its gimbal student position screw stick first complete assembly reinstalling set screw through cut-down knob sure bear knuckle pin enough keep pin place no vibration contend since stick now has hole through over-tightening can fracture stick transmitter should accidently slide up frame tad connector tube will jam bridge therefore plywood hold down tabs really necessary isnt really good reason demount ing transmitter Trainer Tray intend fly solo Its true must start engine adjust needle valve etc before strapping also true minor inconvenience compared advanced capabilities afforded Trainer Tray 102 Model Aviation Only $1995 Only $1695 AOJtISTAEtE 0 eflaust PO edhe E MUli Quadra Motordd6eIhdj0OflurO ADI MUFFLERPib,Iiniioos oostaoe hani M-6O ADJ r Mount Fit WEBRA 91 0 SUEVIA 15 cu & Quadra Motor Mount Only $1995 Mount SEE YOUR LOCAL nEAl CityStZip t5ENO FOR FREE CATALOGI
Edition: Model Aviation - 1980/10
Page Numbers: 14, 15, 100, 102
George Myers SAY GEORGE going quit playing red box get back Hying like rest us stop having much fun doing what Im doing thats August 1980 column dealt construc tion standard Ace A/C Silver Seven trans mitter kit inside customized box example what might Silver Seven Designers Package available kit formn Ace R/C Inc Box ShE Higgins yule MO 64037 promised con tinue stage 2 customizes electronics Fundamental customnizing process design dual mixer discussed greatest pleasures came replac ing Log Amp exponential function board Aces Single MixerKit 11 G505 air plane used study S7 features perform ance old glider tug reinforced Quickee 500 sits oversize landing gear powered 05 61 FSR used several years racer sport flier before conversion glider-tug function See MA Jan 80 pg 56 Better MousetrapHigh Tow Tim Myers has now performed over 250 times problem However six-pound landing weight causes airplane come down final approach nose-high atti tude result tail-bumper strikes first get lot rabbit landings know hopping down runway guessed flapperons might improve situation would need mixer could mechanically knew electronic would suit purposes better Openers retired no way forgotten Bill added another servo airplane Now servo left strip aileron second servo right extra servo plugged Flap socket sixchannel receiver Back inside transmitter installed Ace mixer wired mix aileron flap control signals hi-directionally Flap input now caused both ailerons move same direction Aileron signal caused move opposite directions Both actions could take place same time rigged setup produce 200 flap deflection offsets 200 aileron flaps up 200 Up 100 Down flaps fully extended produced balanced control action Set airplane up final approach Adjust power acceptable rate sink Note usual nose-high attitude Lower flaps Note nose drops level attitude sink rate remains same Watch airplane touch down wheels Oh joy didnt Ido before Because other transmitter doesnt allow mixing thats much success hand decided 14 Model Aviation Its done mirrors Compare Aces neat PC wiring messier Myers point-topointwiring spite appearances both work same Ace single mixer includes three pots six resistors Myers Dual Mixer doesnt need because Dual Mixer designed work Log Amp board mounted elsewhere includes thetrim adjust function photos figures month Timothy J Myers ne giiaer tug ax xoucnaown witfl tiapperons 30 deg deflection automatic up ele vator trim compensation shadow shows level landing attitude youll have take word fact plane going slowly would have nose 10 deg higherwith no flap deflection Myers Dual Mixer board installed Myers S7 transmitter Note 8-pin Deans connector cutto seven pins has installed place intended forthejumperwires Details mod will appear next month switch jumper setup flapperon/elevator auto-trim installation glider tug described text try readjusted mixer produce 300 flap deflection 80 120 aileron flaps down First landing setup bit steeper approach like falling out tree Well get used change gives new dimension control Ace Single Mixer makes mixing two signals eg flap aileron easy stock 57 arrangments permit exponential single mixer wanted system provide ex ponential control two mixers some modi fications order first modification compact two Ace mixers onto board second install Log Amp board another location modify encoder board divert control signals through later column will describe second modification have installed working now interesting thing dual mixers combining XPO signal LIN signal no problems doing reason Ace Silver Seven other transmitter uses NE5044 chip will obsolete previous transmitters simply control functions parallel con tinuous analog voltages Its easy mix combine Previous transmitter designs used string dominoes approach control signal generation time got flap function instance aileron control signal gone forgotten Thats dont have mixers also explains cant use Ace mixer old-design radio think now will simply drop mixer S7 go flying forget things little bit complicated have consider way servo wants turn have think about much servos equai dont equal things glven control signaL Sufficient adjustments provided deal problem will have make adjustment interconnect two mixers shown end up three times things account Take knowswhen get things working way want write down want duplicate future can example code final mixer adjustments connections looks like FM1A&M2AY Flap control signal goes Mixer 1 input Mixer 2 input via adapter code continues AM1 B E- M2B M11-C1 means Mixer 1 output 1 goes control input 1 M12*C6 Ml bi means Mixer 1 switched bi-directional mode M21X Xnot used M22-C2 M1A130 Mixer 1 input attenu ator set 130 oclock M1B200 Ml C 1200 Balance pot centered M2A 1100 M2B130 M2C1130 M2uni M2 uni-directional mode SER Elevator servo reversed SANRt aileron servo has normal rotation operates right-hand strip aileron SFRLt A1 R X 1100 flap control normal rate position reversing switch reverse position exponential function engaged servo throw adjustment 1100 oclock operates left-hand strip aileron E1 N L 1000 F800 300 arent bored lost point must skimming Only person has fighting dual mixers would care However point flaps caused nosedown pitch rectified mixing flap elevator signals second mixer second point mixing adjust ing done screwdriver inside trans mitter very simple convenient Continued page 100 K-- S 7/8 /2 C F NO NS 8-PIN S CON NECT0R~t AIB 11112 IN OUT i IEEE Si ITEM Ri Cl R2 C2 R3 C3 FM C4 R5 CS R6 C6 R7 C7 R8 c8 R9 RiO Ru Cii R12 Ci 2 Wire Wire Wire Wire Wire Wire Wire Wire Wire Wire parts layout map tar mixer doesnt have neat must righti VALUE 50K pot OOlmfd 50K pot 001 51K 001 10K 001 51K 001 51K 001 51K 001 51K 001 51K 001 50K 001 51K 05 27K 05 30 gage 30 gage 30 gage 30 gage 30 gage 30 gage 30 gage 30 gage 30 gage 30 gage G-RS 14 3 3 vipI 2 N w II I0 9 78 c q 1-1/16 01 o2 R 10 0 0 R8 VP 00 PARTS LAYOUT MAP FOR ONE MIXER ASSEMBLE CAREFULLY FROM Bin Pin 2 Pin 7 Pin 1 Pin 1 Pin8 Pin 8 Pin 1 Pin 13 Pin 6 Pin 6 PIn 1 Pin 8 Pin 8 Pin8 Pin 13 Pin 13 Pin 6 Pin 6 Pin 14 Output 1 Pin 7 Output 2 Output 1 5 VDC 0 VDC 211 VDC 211 VDC 211 VDC 211 VDC Input pin Input pin B Pin 4 TO Pin 2 Ground Pin 9 Ground Pin 2 Pin 2 Pin 9 Pin 9 Pin 13 Ground Pin 8 Ground Pin 6 Ground Switch pin 1 Pin 12 Pin 14 Pin 14 Pin 7 Pin 7 Output 1 Ground Output 2 Ground Switch pin 2 Switch pin 3 Pin 11 Ground Pin 3 Pin 5 Pin 10 Pin 12 Free leg R2 Free leg Ri Switch pin 4 0 3 4 6 7 Ov 5V REMARKS Tie wiper leg Tie wiper leg WIRING TABLE FOR ONE MIXER Tie wiper leg A-B B output AB output Uni-/Bi Switch Power ON/OFF switch October 1980 15 THE E 40 Engines up Winning Ideas FOURMOST RETRACTABLE ITOW HOOK RELEASE Price S 690 rYL lest reliable device available After line released hook retracts body unit leaving SMOOTH surface bottom aircraft No special attachments required iVeight Y oz 0491051 AIRFLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE s25O U7 IDEAL FOR QUICKY 500 PRICE IRFLO ENGINE MOUNT OTHER FOURMOST PRODUCTS Fuel Fitting Sets Fuel Shut Off Fuel Manifold Gapless Hinges Gapless Hinge Slotter Strut Fairings Cockpit Coaming FUR~ST Sand SASE Complete Information 4040 24th Ave Forest Grove OR 97116 PRODUCTS Phone 503 3572732 make Speaking Phineas Pinkham did atributeto joker pulp fan-zine few years back received nice note mentor author Joe Archibald prolific writer great cartoonist Well Phineas would say fractured French Adoo Bud Overn Santa Ana CA Memories Dakota very flyable Free Flight bipe will live forever seems think Bud saying something significant relates modified version flew well unmodi fied Rubber-power profiles indeed fun some guys use test- bedsforworking out bugs bigger models usually Scale have article Don Srull coming up explains does andfeatures aplan rubber-powerprofile Japanese Navy Shinden RC Milestones Just back England lot report Ducted Fans am now catching up reading letter D B Mathews thinks Super Brigadier first trainer before Live Wire Beam over year important its always omission problems such articles think Plecan should have mentioned Joe Raspantes Monster Buccaneer 1939 first digital control RC proportional used telephone dial system dial 0 wipe out controls return neutral two-speed Forster 99 powered it shown back Berkeleys 1940 catalog Joe potential win Nats Good Brothers flying experience Also milestone Hank Strucks 2-in scale Cessna 170 Berkeley kit probably first RC log 100 hours Hanks Busterstill flying probably first Quarter-Scale RC well-known beginning Galloping Ghost era Bill Johnkes Impulse terrific trainer didnt go over commercially Bill Effinger Atlanta GA think Paul Plecan has earned high marks Milestones RC July issue articles like always brace selves onslaught suggestions ofmodels should have included knew woul4 Plecan did very careful work might know Bill Effinger headed up Berkeley Models years During its heyday Berkeley probably biggest US kit maker jf biggest world Quarter-Scale England May congratulate fine magazine have reading AMAs official publica tion some time now however May June 1980 issues have really taken eye particular Henry Hafikes -scale Gee Bee Senior Sportster Model Y would therefore consider honor would send plans -scale model Plan Number 299 One-fourth scale just beginning take off country have almost completed -scale Cub built Sid Morgans plans Power will Webra 91 radio will Kraft hopefully next -scale model will Gee Bee PS Please keep up good work James Bunke Desford Leicester England Radio Technique/Myers Continued page 15 need dual mixer helicopter job What need limited imagina tion Should desire build other ways sure following 1 Buy two Ace mixer kits 11 G505 two 8-pin Deans connectors couldnt find catalog Ace has Also pack hookup wire 50L520 2 Buy wire-wrap tool some 30-gage wrapping wire Radio Shack tool #276-15 70A instructions using back way stop winding four turns Buy 4-DIP switch 3 Buy #67 twist drill somethingto turn dont already have Youll need #60 too 4 1-in square pert-board makes handy drill guide can live Begin installing 17 mini-pins mixer boards_Then use single-edge razor blade peel scrape rest PC material off board including words sorry Ace Next drill 8 x 12 pattern holes #67 next row pins Remember leave room sockets will under board cut T-shaped opening center board File hole very carefully 8-pin Deans socket will fit tightly half submerged theyre tapered ZAP place 100 Model Aviation AEMO COMMANDER 112 Fiberglass Fuselage Molded Interior Foam Cores & Metal Engine Mount 3-Formed Gears Hardware Span 40 60 Engines 4-6 1/C Channels $15995 Phone 516 542-7726 THE V-TAILED VIANA Foam Cores & balsa skins Formed Gear & Canopy 40 50 Engines 54 Wingspan 590 Sq $6995 RP 167B New Highway North AmItyvIll NY 11701 Cut solder tails off Deans about 1/16-in high Now drop components mixer holes side board used socket IC isnt necessary arrangement resistors capacitors isnt critical make little like should easy wire Make map components label start wiring point-to-point according wiring table Check off point wiring table wrap fail dont tell troubles advantage point-topoint wiring can get very compact arrangement parts disadvantage can get hopelessly lost fail make map follow wiring table String grounds single connection 0 volt pin again other mixer Drill eight *67 holes center empty space DIP switch used two switches turn mixers on/off other two uni-/bi-directional switching Arrange pots satisfaction drill 18 holes *60 Continue wiring point point forgot mention above wiring goes lot easier clip leads components about re doing wirewrapping can wrap over other wraps stack Solder everything after youre sure its working righ4 watch out solder bridges make mistake Radio Shack sells copper braid called Solder Wick Lay joint heat iron solder flows miraculously off joint wick Clip discard used wick Ive run out space Youll see photos installed other Deans socket Silver Seven encoder board make patch panel Next month Ill tell rye received some letters complaining dont give prices addresses stuff use knows about prices days pay what ou must Ill tell bought special stuff have past rest can get hobby dealer doesnt have stock give him chance get before go mails word caution build install Myers Dual Mixer Silver Seven dont send Ace repair Wit doesnt ot work home brew item like build strictly own Keep letters coming George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Trainer Tray/Morris Continued page 18 handrest runners until mechanical interconnection between sticks complete way can align parts ensure parallel sticks -in square brass connecting tube nice close fit over knuckle 12 inch overall length connector tube has proven exactly right length Some wise guys quick point out 12 inches standard length tubing sold Lucky wasnt Anyway use square Swiss file notch ends being careful touch inside walls Solder brass reinforcing place Bevel outside edges round corners make look nice knuckle pin hole drilled later along knuckle Cut knuckle length square up ends After knuckle pin hole drilled ends can rounded Lay Out center large hole drill carefully preferred tool drilling stick knuckle pin holes drill press Remove knob stick make sure stick snugly seated its gimbal Scribe line across diameter stick parallel pitch control arc Fig 1 large drawing line used align stick knuckle drilling Slide knuckle position connector tube drill knuckle pin hole Keeping things square important tricky part construction drilling sticks position knuckle stick lightly clamp Adjust stick align scribed line holes knuckle drop C adhesive used stabilize parts Using hole knuckle guide drill stick Repeat process other stick cant get drill rod knuckle pin sacrifice shank drill used making holes Its much easier assemble parts knuckle pin inch over long trim length cut-off wheel after assembly Assemble transmitter stick knuckle con nector tube pin screw stick its gimbal student position screw stick first complete assembly reinstalling set screw through cut-down knob sure bear knuckle pin enough keep pin place no vibration contend since stick now has hole through over-tightening can fracture stick transmitter should accidently slide up frame tad connector tube will jam bridge therefore plywood hold down tabs really necessary isnt really good reason demount ing transmitter Trainer Tray intend fly solo Its true must start engine adjust needle valve etc before strapping also true minor inconvenience compared advanced capabilities afforded Trainer Tray 102 Model Aviation Only $1995 Only $1695 AOJtISTAEtE 0 eflaust PO edhe E MUli Quadra Motordd6eIhdj0OflurO ADI MUFFLERPib,Iiniioos oostaoe hani M-6O ADJ r Mount Fit WEBRA 91 0 SUEVIA 15 cu & Quadra Motor Mount Only $1995 Mount SEE YOUR LOCAL nEAl CityStZip t5ENO FOR FREE CATALOGI
Edition: Model Aviation - 1980/10
Page Numbers: 14, 15, 100, 102
George Myers SAY GEORGE going quit playing red box get back Hying like rest us stop having much fun doing what Im doing thats August 1980 column dealt construc tion standard Ace A/C Silver Seven trans mitter kit inside customized box example what might Silver Seven Designers Package available kit formn Ace R/C Inc Box ShE Higgins yule MO 64037 promised con tinue stage 2 customizes electronics Fundamental customnizing process design dual mixer discussed greatest pleasures came replac ing Log Amp exponential function board Aces Single MixerKit 11 G505 air plane used study S7 features perform ance old glider tug reinforced Quickee 500 sits oversize landing gear powered 05 61 FSR used several years racer sport flier before conversion glider-tug function See MA Jan 80 pg 56 Better MousetrapHigh Tow Tim Myers has now performed over 250 times problem However six-pound landing weight causes airplane come down final approach nose-high atti tude result tail-bumper strikes first get lot rabbit landings know hopping down runway guessed flapperons might improve situation would need mixer could mechanically knew electronic would suit purposes better Openers retired no way forgotten Bill added another servo airplane Now servo left strip aileron second servo right extra servo plugged Flap socket sixchannel receiver Back inside transmitter installed Ace mixer wired mix aileron flap control signals hi-directionally Flap input now caused both ailerons move same direction Aileron signal caused move opposite directions Both actions could take place same time rigged setup produce 200 flap deflection offsets 200 aileron flaps up 200 Up 100 Down flaps fully extended produced balanced control action Set airplane up final approach Adjust power acceptable rate sink Note usual nose-high attitude Lower flaps Note nose drops level attitude sink rate remains same Watch airplane touch down wheels Oh joy didnt Ido before Because other transmitter doesnt allow mixing thats much success hand decided 14 Model Aviation Its done mirrors Compare Aces neat PC wiring messier Myers point-topointwiring spite appearances both work same Ace single mixer includes three pots six resistors Myers Dual Mixer doesnt need because Dual Mixer designed work Log Amp board mounted elsewhere includes thetrim adjust function photos figures month Timothy J Myers ne giiaer tug ax xoucnaown witfl tiapperons 30 deg deflection automatic up ele vator trim compensation shadow shows level landing attitude youll have take word fact plane going slowly would have nose 10 deg higherwith no flap deflection Myers Dual Mixer board installed Myers S7 transmitter Note 8-pin Deans connector cutto seven pins has installed place intended forthejumperwires Details mod will appear next month switch jumper setup flapperon/elevator auto-trim installation glider tug described text try readjusted mixer produce 300 flap deflection 80 120 aileron flaps down First landing setup bit steeper approach like falling out tree Well get used change gives new dimension control Ace Single Mixer makes mixing two signals eg flap aileron easy stock 57 arrangments permit exponential single mixer wanted system provide ex ponential control two mixers some modi fications order first modification compact two Ace mixers onto board second install Log Amp board another location modify encoder board divert control signals through later column will describe second modification have installed working now interesting thing dual mixers combining XPO signal LIN signal no problems doing reason Ace Silver Seven other transmitter uses NE5044 chip will obsolete previous transmitters simply control functions parallel con tinuous analog voltages Its easy mix combine Previous transmitter designs used string dominoes approach control signal generation time got flap function instance aileron control signal gone forgotten Thats dont have mixers also explains cant use Ace mixer old-design radio think now will simply drop mixer S7 go flying forget things little bit complicated have consider way servo wants turn have think about much servos equai dont equal things glven control signaL Sufficient adjustments provided deal problem will have make adjustment interconnect two mixers shown end up three times things account Take knowswhen get things working way want write down want duplicate future can example code final mixer adjustments connections looks like FM1A&M2AY Flap control signal goes Mixer 1 input Mixer 2 input via adapter code continues AM1 B E- M2B M11-C1 means Mixer 1 output 1 goes control input 1 M12*C6 Ml bi means Mixer 1 switched bi-directional mode M21X Xnot used M22-C2 M1A130 Mixer 1 input attenu ator set 130 oclock M1B200 Ml C 1200 Balance pot centered M2A 1100 M2B130 M2C1130 M2uni M2 uni-directional mode SER Elevator servo reversed SANRt aileron servo has normal rotation operates right-hand strip aileron SFRLt A1 R X 1100 flap control normal rate position reversing switch reverse position exponential function engaged servo throw adjustment 1100 oclock operates left-hand strip aileron E1 N L 1000 F800 300 arent bored lost point must skimming Only person has fighting dual mixers would care However point flaps caused nosedown pitch rectified mixing flap elevator signals second mixer second point mixing adjust ing done screwdriver inside trans mitter very simple convenient Continued page 100 K-- S 7/8 /2 C F NO NS 8-PIN S CON NECT0R~t AIB 11112 IN OUT i IEEE Si ITEM Ri Cl R2 C2 R3 C3 FM C4 R5 CS R6 C6 R7 C7 R8 c8 R9 RiO Ru Cii R12 Ci 2 Wire Wire Wire Wire Wire Wire Wire Wire Wire Wire parts layout map tar mixer doesnt have neat must righti VALUE 50K pot OOlmfd 50K pot 001 51K 001 10K 001 51K 001 51K 001 51K 001 51K 001 51K 001 50K 001 51K 05 27K 05 30 gage 30 gage 30 gage 30 gage 30 gage 30 gage 30 gage 30 gage 30 gage 30 gage G-RS 14 3 3 vipI 2 N w II I0 9 78 c q 1-1/16 01 o2 R 10 0 0 R8 VP 00 PARTS LAYOUT MAP FOR ONE MIXER ASSEMBLE CAREFULLY FROM Bin Pin 2 Pin 7 Pin 1 Pin 1 Pin8 Pin 8 Pin 1 Pin 13 Pin 6 Pin 6 PIn 1 Pin 8 Pin 8 Pin8 Pin 13 Pin 13 Pin 6 Pin 6 Pin 14 Output 1 Pin 7 Output 2 Output 1 5 VDC 0 VDC 211 VDC 211 VDC 211 VDC 211 VDC Input pin Input pin B Pin 4 TO Pin 2 Ground Pin 9 Ground Pin 2 Pin 2 Pin 9 Pin 9 Pin 13 Ground Pin 8 Ground Pin 6 Ground Switch pin 1 Pin 12 Pin 14 Pin 14 Pin 7 Pin 7 Output 1 Ground Output 2 Ground Switch pin 2 Switch pin 3 Pin 11 Ground Pin 3 Pin 5 Pin 10 Pin 12 Free leg R2 Free leg Ri Switch pin 4 0 3 4 6 7 Ov 5V REMARKS Tie wiper leg Tie wiper leg WIRING TABLE FOR ONE MIXER Tie wiper leg A-B B output AB output Uni-/Bi Switch Power ON/OFF switch October 1980 15 THE E 40 Engines up Winning Ideas FOURMOST RETRACTABLE ITOW HOOK RELEASE Price S 690 rYL lest reliable device available After line released hook retracts body unit leaving SMOOTH surface bottom aircraft No special attachments required iVeight Y oz 0491051 AIRFLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE s25O U7 IDEAL FOR QUICKY 500 PRICE IRFLO ENGINE MOUNT OTHER FOURMOST PRODUCTS Fuel Fitting Sets Fuel Shut Off Fuel Manifold Gapless Hinges Gapless Hinge Slotter Strut Fairings Cockpit Coaming FUR~ST Sand SASE Complete Information 4040 24th Ave Forest Grove OR 97116 PRODUCTS Phone 503 3572732 make Speaking Phineas Pinkham did atributeto joker pulp fan-zine few years back received nice note mentor author Joe Archibald prolific writer great cartoonist Well Phineas would say fractured French Adoo Bud Overn Santa Ana CA Memories Dakota very flyable Free Flight bipe will live forever seems think Bud saying something significant relates modified version flew well unmodi fied Rubber-power profiles indeed fun some guys use test- bedsforworking out bugs bigger models usually Scale have article Don Srull coming up explains does andfeatures aplan rubber-powerprofile Japanese Navy Shinden RC Milestones Just back England lot report Ducted Fans am now catching up reading letter D B Mathews thinks Super Brigadier first trainer before Live Wire Beam over year important its always omission problems such articles think Plecan should have mentioned Joe Raspantes Monster Buccaneer 1939 first digital control RC proportional used telephone dial system dial 0 wipe out controls return neutral two-speed Forster 99 powered it shown back Berkeleys 1940 catalog Joe potential win Nats Good Brothers flying experience Also milestone Hank Strucks 2-in scale Cessna 170 Berkeley kit probably first RC log 100 hours Hanks Busterstill flying probably first Quarter-Scale RC well-known beginning Galloping Ghost era Bill Johnkes Impulse terrific trainer didnt go over commercially Bill Effinger Atlanta GA think Paul Plecan has earned high marks Milestones RC July issue articles like always brace selves onslaught suggestions ofmodels should have included knew woul4 Plecan did very careful work might know Bill Effinger headed up Berkeley Models years During its heyday Berkeley probably biggest US kit maker jf biggest world Quarter-Scale England May congratulate fine magazine have reading AMAs official publica tion some time now however May June 1980 issues have really taken eye particular Henry Hafikes -scale Gee Bee Senior Sportster Model Y would therefore consider honor would send plans -scale model Plan Number 299 One-fourth scale just beginning take off country have almost completed -scale Cub built Sid Morgans plans Power will Webra 91 radio will Kraft hopefully next -scale model will Gee Bee PS Please keep up good work James Bunke Desford Leicester England Radio Technique/Myers Continued page 15 need dual mixer helicopter job What need limited imagina tion Should desire build other ways sure following 1 Buy two Ace mixer kits 11 G505 two 8-pin Deans connectors couldnt find catalog Ace has Also pack hookup wire 50L520 2 Buy wire-wrap tool some 30-gage wrapping wire Radio Shack tool #276-15 70A instructions using back way stop winding four turns Buy 4-DIP switch 3 Buy #67 twist drill somethingto turn dont already have Youll need #60 too 4 1-in square pert-board makes handy drill guide can live Begin installing 17 mini-pins mixer boards_Then use single-edge razor blade peel scrape rest PC material off board including words sorry Ace Next drill 8 x 12 pattern holes #67 next row pins Remember leave room sockets will under board cut T-shaped opening center board File hole very carefully 8-pin Deans socket will fit tightly half submerged theyre tapered ZAP place 100 Model Aviation AEMO COMMANDER 112 Fiberglass Fuselage Molded Interior Foam Cores & Metal Engine Mount 3-Formed Gears Hardware Span 40 60 Engines 4-6 1/C Channels $15995 Phone 516 542-7726 THE V-TAILED VIANA Foam Cores & balsa skins Formed Gear & Canopy 40 50 Engines 54 Wingspan 590 Sq $6995 RP 167B New Highway North AmItyvIll NY 11701 Cut solder tails off Deans about 1/16-in high Now drop components mixer holes side board used socket IC isnt necessary arrangement resistors capacitors isnt critical make little like should easy wire Make map components label start wiring point-to-point according wiring table Check off point wiring table wrap fail dont tell troubles advantage point-topoint wiring can get very compact arrangement parts disadvantage can get hopelessly lost fail make map follow wiring table String grounds single connection 0 volt pin again other mixer Drill eight *67 holes center empty space DIP switch used two switches turn mixers on/off other two uni-/bi-directional switching Arrange pots satisfaction drill 18 holes *60 Continue wiring point point forgot mention above wiring goes lot easier clip leads components about re doing wirewrapping can wrap over other wraps stack Solder everything after youre sure its working righ4 watch out solder bridges make mistake Radio Shack sells copper braid called Solder Wick Lay joint heat iron solder flows miraculously off joint wick Clip discard used wick Ive run out space Youll see photos installed other Deans socket Silver Seven encoder board make patch panel Next month Ill tell rye received some letters complaining dont give prices addresses stuff use knows about prices days pay what ou must Ill tell bought special stuff have past rest can get hobby dealer doesnt have stock give him chance get before go mails word caution build install Myers Dual Mixer Silver Seven dont send Ace repair Wit doesnt ot work home brew item like build strictly own Keep letters coming George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Trainer Tray/Morris Continued page 18 handrest runners until mechanical interconnection between sticks complete way can align parts ensure parallel sticks -in square brass connecting tube nice close fit over knuckle 12 inch overall length connector tube has proven exactly right length Some wise guys quick point out 12 inches standard length tubing sold Lucky wasnt Anyway use square Swiss file notch ends being careful touch inside walls Solder brass reinforcing place Bevel outside edges round corners make look nice knuckle pin hole drilled later along knuckle Cut knuckle length square up ends After knuckle pin hole drilled ends can rounded Lay Out center large hole drill carefully preferred tool drilling stick knuckle pin holes drill press Remove knob stick make sure stick snugly seated its gimbal Scribe line across diameter stick parallel pitch control arc Fig 1 large drawing line used align stick knuckle drilling Slide knuckle position connector tube drill knuckle pin hole Keeping things square important tricky part construction drilling sticks position knuckle stick lightly clamp Adjust stick align scribed line holes knuckle drop C adhesive used stabilize parts Using hole knuckle guide drill stick Repeat process other stick cant get drill rod knuckle pin sacrifice shank drill used making holes Its much easier assemble parts knuckle pin inch over long trim length cut-off wheel after assembly Assemble transmitter stick knuckle con nector tube pin screw stick its gimbal student position screw stick first complete assembly reinstalling set screw through cut-down knob sure bear knuckle pin enough keep pin place no vibration contend since stick now has hole through over-tightening can fracture stick transmitter should accidently slide up frame tad connector tube will jam bridge therefore plywood hold down tabs really necessary isnt really good reason demount ing transmitter Trainer Tray intend fly solo Its true must start engine adjust needle valve etc before strapping also true minor inconvenience compared advanced capabilities afforded Trainer Tray 102 Model Aviation Only $1995 Only $1695 AOJtISTAEtE 0 eflaust PO edhe E MUli Quadra Motordd6eIhdj0OflurO ADI MUFFLERPib,Iiniioos oostaoe hani M-6O ADJ r Mount Fit WEBRA 91 0 SUEVIA 15 cu & Quadra Motor Mount Only $1995 Mount SEE YOUR LOCAL nEAl CityStZip t5ENO FOR FREE CATALOGI
Edition: Model Aviation - 1980/10
Page Numbers: 14, 15, 100, 102
George Myers SAY GEORGE going quit playing red box get back Hying like rest us stop having much fun doing what Im doing thats August 1980 column dealt construc tion standard Ace A/C Silver Seven trans mitter kit inside customized box example what might Silver Seven Designers Package available kit formn Ace R/C Inc Box ShE Higgins yule MO 64037 promised con tinue stage 2 customizes electronics Fundamental customnizing process design dual mixer discussed greatest pleasures came replac ing Log Amp exponential function board Aces Single MixerKit 11 G505 air plane used study S7 features perform ance old glider tug reinforced Quickee 500 sits oversize landing gear powered 05 61 FSR used several years racer sport flier before conversion glider-tug function See MA Jan 80 pg 56 Better MousetrapHigh Tow Tim Myers has now performed over 250 times problem However six-pound landing weight causes airplane come down final approach nose-high atti tude result tail-bumper strikes first get lot rabbit landings know hopping down runway guessed flapperons might improve situation would need mixer could mechanically knew electronic would suit purposes better Openers retired no way forgotten Bill added another servo airplane Now servo left strip aileron second servo right extra servo plugged Flap socket sixchannel receiver Back inside transmitter installed Ace mixer wired mix aileron flap control signals hi-directionally Flap input now caused both ailerons move same direction Aileron signal caused move opposite directions Both actions could take place same time rigged setup produce 200 flap deflection offsets 200 aileron flaps up 200 Up 100 Down flaps fully extended produced balanced control action Set airplane up final approach Adjust power acceptable rate sink Note usual nose-high attitude Lower flaps Note nose drops level attitude sink rate remains same Watch airplane touch down wheels Oh joy didnt Ido before Because other transmitter doesnt allow mixing thats much success hand decided 14 Model Aviation Its done mirrors Compare Aces neat PC wiring messier Myers point-topointwiring spite appearances both work same Ace single mixer includes three pots six resistors Myers Dual Mixer doesnt need because Dual Mixer designed work Log Amp board mounted elsewhere includes thetrim adjust function photos figures month Timothy J Myers ne giiaer tug ax xoucnaown witfl tiapperons 30 deg deflection automatic up ele vator trim compensation shadow shows level landing attitude youll have take word fact plane going slowly would have nose 10 deg higherwith no flap deflection Myers Dual Mixer board installed Myers S7 transmitter Note 8-pin Deans connector cutto seven pins has installed place intended forthejumperwires Details mod will appear next month switch jumper setup flapperon/elevator auto-trim installation glider tug described text try readjusted mixer produce 300 flap deflection 80 120 aileron flaps down First landing setup bit steeper approach like falling out tree Well get used change gives new dimension control Ace Single Mixer makes mixing two signals eg flap aileron easy stock 57 arrangments permit exponential single mixer wanted system provide ex ponential control two mixers some modi fications order first modification compact two Ace mixers onto board second install Log Amp board another location modify encoder board divert control signals through later column will describe second modification have installed working now interesting thing dual mixers combining XPO signal LIN signal no problems doing reason Ace Silver Seven other transmitter uses NE5044 chip will obsolete previous transmitters simply control functions parallel con tinuous analog voltages Its easy mix combine Previous transmitter designs used string dominoes approach control signal generation time got flap function instance aileron control signal gone forgotten Thats dont have mixers also explains cant use Ace mixer old-design radio think now will simply drop mixer S7 go flying forget things little bit complicated have consider way servo wants turn have think about much servos equai dont equal things glven control signaL Sufficient adjustments provided deal problem will have make adjustment interconnect two mixers shown end up three times things account Take knowswhen get things working way want write down want duplicate future can example code final mixer adjustments connections looks like FM1A&M2AY Flap control signal goes Mixer 1 input Mixer 2 input via adapter code continues AM1 B E- M2B M11-C1 means Mixer 1 output 1 goes control input 1 M12*C6 Ml bi means Mixer 1 switched bi-directional mode M21X Xnot used M22-C2 M1A130 Mixer 1 input attenu ator set 130 oclock M1B200 Ml C 1200 Balance pot centered M2A 1100 M2B130 M2C1130 M2uni M2 uni-directional mode SER Elevator servo reversed SANRt aileron servo has normal rotation operates right-hand strip aileron SFRLt A1 R X 1100 flap control normal rate position reversing switch reverse position exponential function engaged servo throw adjustment 1100 oclock operates left-hand strip aileron E1 N L 1000 F800 300 arent bored lost point must skimming Only person has fighting dual mixers would care However point flaps caused nosedown pitch rectified mixing flap elevator signals second mixer second point mixing adjust ing done screwdriver inside trans mitter very simple convenient Continued page 100 K-- S 7/8 /2 C F NO NS 8-PIN S CON NECT0R~t AIB 11112 IN OUT i IEEE Si ITEM Ri Cl R2 C2 R3 C3 FM C4 R5 CS R6 C6 R7 C7 R8 c8 R9 RiO Ru Cii R12 Ci 2 Wire Wire Wire Wire Wire Wire Wire Wire Wire Wire parts layout map tar mixer doesnt have neat must righti VALUE 50K pot OOlmfd 50K pot 001 51K 001 10K 001 51K 001 51K 001 51K 001 51K 001 51K 001 50K 001 51K 05 27K 05 30 gage 30 gage 30 gage 30 gage 30 gage 30 gage 30 gage 30 gage 30 gage 30 gage G-RS 14 3 3 vipI 2 N w II I0 9 78 c q 1-1/16 01 o2 R 10 0 0 R8 VP 00 PARTS LAYOUT MAP FOR ONE MIXER ASSEMBLE CAREFULLY FROM Bin Pin 2 Pin 7 Pin 1 Pin 1 Pin8 Pin 8 Pin 1 Pin 13 Pin 6 Pin 6 PIn 1 Pin 8 Pin 8 Pin8 Pin 13 Pin 13 Pin 6 Pin 6 Pin 14 Output 1 Pin 7 Output 2 Output 1 5 VDC 0 VDC 211 VDC 211 VDC 211 VDC 211 VDC Input pin Input pin B Pin 4 TO Pin 2 Ground Pin 9 Ground Pin 2 Pin 2 Pin 9 Pin 9 Pin 13 Ground Pin 8 Ground Pin 6 Ground Switch pin 1 Pin 12 Pin 14 Pin 14 Pin 7 Pin 7 Output 1 Ground Output 2 Ground Switch pin 2 Switch pin 3 Pin 11 Ground Pin 3 Pin 5 Pin 10 Pin 12 Free leg R2 Free leg Ri Switch pin 4 0 3 4 6 7 Ov 5V REMARKS Tie wiper leg Tie wiper leg WIRING TABLE FOR ONE MIXER Tie wiper leg A-B B output AB output Uni-/Bi Switch Power ON/OFF switch October 1980 15 THE E 40 Engines up Winning Ideas FOURMOST RETRACTABLE ITOW HOOK RELEASE Price S 690 rYL lest reliable device available After line released hook retracts body unit leaving SMOOTH surface bottom aircraft No special attachments required iVeight Y oz 0491051 AIRFLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE s25O U7 IDEAL FOR QUICKY 500 PRICE IRFLO ENGINE MOUNT OTHER FOURMOST PRODUCTS Fuel Fitting Sets Fuel Shut Off Fuel Manifold Gapless Hinges Gapless Hinge Slotter Strut Fairings Cockpit Coaming FUR~ST Sand SASE Complete Information 4040 24th Ave Forest Grove OR 97116 PRODUCTS Phone 503 3572732 make Speaking Phineas Pinkham did atributeto joker pulp fan-zine few years back received nice note mentor author Joe Archibald prolific writer great cartoonist Well Phineas would say fractured French Adoo Bud Overn Santa Ana CA Memories Dakota very flyable Free Flight bipe will live forever seems think Bud saying something significant relates modified version flew well unmodi fied Rubber-power profiles indeed fun some guys use test- bedsforworking out bugs bigger models usually Scale have article Don Srull coming up explains does andfeatures aplan rubber-powerprofile Japanese Navy Shinden RC Milestones Just back England lot report Ducted Fans am now catching up reading letter D B Mathews thinks Super Brigadier first trainer before Live Wire Beam over year important its always omission problems such articles think Plecan should have mentioned Joe Raspantes Monster Buccaneer 1939 first digital control RC proportional used telephone dial system dial 0 wipe out controls return neutral two-speed Forster 99 powered it shown back Berkeleys 1940 catalog Joe potential win Nats Good Brothers flying experience Also milestone Hank Strucks 2-in scale Cessna 170 Berkeley kit probably first RC log 100 hours Hanks Busterstill flying probably first Quarter-Scale RC well-known beginning Galloping Ghost era Bill Johnkes Impulse terrific trainer didnt go over commercially Bill Effinger Atlanta GA think Paul Plecan has earned high marks Milestones RC July issue articles like always brace selves onslaught suggestions ofmodels should have included knew woul4 Plecan did very careful work might know Bill Effinger headed up Berkeley Models years During its heyday Berkeley probably biggest US kit maker jf biggest world Quarter-Scale England May congratulate fine magazine have reading AMAs official publica tion some time now however May June 1980 issues have really taken eye particular Henry Hafikes -scale Gee Bee Senior Sportster Model Y would therefore consider honor would send plans -scale model Plan Number 299 One-fourth scale just beginning take off country have almost completed -scale Cub built Sid Morgans plans Power will Webra 91 radio will Kraft hopefully next -scale model will Gee Bee PS Please keep up good work James Bunke Desford Leicester England Radio Technique/Myers Continued page 15 need dual mixer helicopter job What need limited imagina tion Should desire build other ways sure following 1 Buy two Ace mixer kits 11 G505 two 8-pin Deans connectors couldnt find catalog Ace has Also pack hookup wire 50L520 2 Buy wire-wrap tool some 30-gage wrapping wire Radio Shack tool #276-15 70A instructions using back way stop winding four turns Buy 4-DIP switch 3 Buy #67 twist drill somethingto turn dont already have Youll need #60 too 4 1-in square pert-board makes handy drill guide can live Begin installing 17 mini-pins mixer boards_Then use single-edge razor blade peel scrape rest PC material off board including words sorry Ace Next drill 8 x 12 pattern holes #67 next row pins Remember leave room sockets will under board cut T-shaped opening center board File hole very carefully 8-pin Deans socket will fit tightly half submerged theyre tapered ZAP place 100 Model Aviation AEMO COMMANDER 112 Fiberglass Fuselage Molded Interior Foam Cores & Metal Engine Mount 3-Formed Gears Hardware Span 40 60 Engines 4-6 1/C Channels $15995 Phone 516 542-7726 THE V-TAILED VIANA Foam Cores & balsa skins Formed Gear & Canopy 40 50 Engines 54 Wingspan 590 Sq $6995 RP 167B New Highway North AmItyvIll NY 11701 Cut solder tails off Deans about 1/16-in high Now drop components mixer holes side board used socket IC isnt necessary arrangement resistors capacitors isnt critical make little like should easy wire Make map components label start wiring point-to-point according wiring table Check off point wiring table wrap fail dont tell troubles advantage point-topoint wiring can get very compact arrangement parts disadvantage can get hopelessly lost fail make map follow wiring table String grounds single connection 0 volt pin again other mixer Drill eight *67 holes center empty space DIP switch used two switches turn mixers on/off other two uni-/bi-directional switching Arrange pots satisfaction drill 18 holes *60 Continue wiring point point forgot mention above wiring goes lot easier clip leads components about re doing wirewrapping can wrap over other wraps stack Solder everything after youre sure its working righ4 watch out solder bridges make mistake Radio Shack sells copper braid called Solder Wick Lay joint heat iron solder flows miraculously off joint wick Clip discard used wick Ive run out space Youll see photos installed other Deans socket Silver Seven encoder board make patch panel Next month Ill tell rye received some letters complaining dont give prices addresses stuff use knows about prices days pay what ou must Ill tell bought special stuff have past rest can get hobby dealer doesnt have stock give him chance get before go mails word caution build install Myers Dual Mixer Silver Seven dont send Ace repair Wit doesnt ot work home brew item like build strictly own Keep letters coming George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Trainer Tray/Morris Continued page 18 handrest runners until mechanical interconnection between sticks complete way can align parts ensure parallel sticks -in square brass connecting tube nice close fit over knuckle 12 inch overall length connector tube has proven exactly right length Some wise guys quick point out 12 inches standard length tubing sold Lucky wasnt Anyway use square Swiss file notch ends being careful touch inside walls Solder brass reinforcing place Bevel outside edges round corners make look nice knuckle pin hole drilled later along knuckle Cut knuckle length square up ends After knuckle pin hole drilled ends can rounded Lay Out center large hole drill carefully preferred tool drilling stick knuckle pin holes drill press Remove knob stick make sure stick snugly seated its gimbal Scribe line across diameter stick parallel pitch control arc Fig 1 large drawing line used align stick knuckle drilling Slide knuckle position connector tube drill knuckle pin hole Keeping things square important tricky part construction drilling sticks position knuckle stick lightly clamp Adjust stick align scribed line holes knuckle drop C adhesive used stabilize parts Using hole knuckle guide drill stick Repeat process other stick cant get drill rod knuckle pin sacrifice shank drill used making holes Its much easier assemble parts knuckle pin inch over long trim length cut-off wheel after assembly Assemble transmitter stick knuckle con nector tube pin screw stick its gimbal student position screw stick first complete assembly reinstalling set screw through cut-down knob sure bear knuckle pin enough keep pin place no vibration contend since stick now has hole through over-tightening can fracture stick transmitter should accidently slide up frame tad connector tube will jam bridge therefore plywood hold down tabs really necessary isnt really good reason demount ing transmitter Trainer Tray intend fly solo Its true must start engine adjust needle valve etc before strapping also true minor inconvenience compared advanced capabilities afforded Trainer Tray 102 Model Aviation Only $1995 Only $1695 AOJtISTAEtE 0 eflaust PO edhe E MUli Quadra Motordd6eIhdj0OflurO ADI MUFFLERPib,Iiniioos oostaoe hani M-6O ADJ r Mount Fit WEBRA 91 0 SUEVIA 15 cu & Quadra Motor Mount Only $1995 Mount SEE YOUR LOCAL nEAl CityStZip t5ENO FOR FREE CATALOGI