Boeing 314: Electric version of the Famed Yankee Clipper

The Boeing 314 pre-World War II epitome class luxury airline travel 314 largest successful aircraft its day having started service Pan American World Airways System January 1939 314 preceded Pan Ams overseas service Martin 130 entered service October 1935 NC 14716 legendary China Clipper crossed Pacific Ocean November 11 1935 remembered airplane started long overwater flights Hawaii Midway Wake Guam Manila quest greater payload increased range led huge advances Sikorsky 5-42 Martin 130 Boeing 314 sensational performance timefar outperforming other designs Aircraft performance safety took large step forward 1934 advent variable-pitch propellers measurably aided range payload second advancement July1995 17 During initial tests 314 showed hard left tendency counterrotating props two motors solved problem ability feather propellers contributed safety reducing drag malfunctioning engine Charles Lindbergh Pan Am payroll technical consultant test-flew new potential routes assisted design testing new aircraft designs Pan Am company Juan Trippe Pan Ams founder guiding genius chief engineer operations manager Andre Priester decided 1931 types aircraft needed fly daring transportation routes flights westward Orient over Pacific Priester said seaplane carries its airport its hull prototype Scale model Yankee Clipper NC 18603 third production model twelve 3 14s probably famous best known group wingspan 152 feet length 106 feet carried 36 sleepers 74 day passengers crew 10 16 Top speed 193 mph cruising speed 140 180 mph Four 1600horsepower Curtiss Wright Twin Cyclones gave Clipper 565 feet per minute climb rate ceiling 21000 feet range up 5200 miles Maximum gross weight 84000 pounds landing speed low 70 mph Yankee Clipper crashed demolished Taugus River Portugal 647 pm February 22 1943 loss 24 people among USO entertainers diplomats some crew pilot Captain Rod Sullivan copilot initial Martin 130 flight Hawaii Manila 1935 experienced Pan Am pilot time having logged 3278 hours 314 survived never flew again Pan Am Yankee Clipper made 240 Atlantic crossings logging 8500 hours traveling million miles sad tragic ending beautiful aircraft Clippers took 350000 man-hours build cost Pan Am $700000 1939 Three twelve 3 14s built sold British During World War II invaluable United States Britain ferrying diplomats aircraft parts supplies ammunition other vital war material made 4000 ocean crossings carried 7 million pounds mail 60000 18 Model Aviation or Yankee Clipper NC 18603 third series twelve 3148 built Boeing passengers None lost enemy action 314s used United States government during war crewed Pan Am personnel Sadly left today drew construction plans threeviews start desired model realistic look would fly realistic manner very aware weight materials used project primarily built fly rather being museum piece competitive Scale model first scratch-built effort although have built numerous models plans usually variables have finalized designer copied Boeings design full-scale design practices necessarily translate model design practice respects rate head-scratching pondering wrenching experience doing building especially enjoyable creation flew successfully model took about 700 happy hobby hours build built scale 3/4 inch foot 1/16 scale gave wingspan 114 inches wing area 112 square feet Construction balsa except box holds motor batteries dihedral braces motor bulkheads two other small plywood pieces Adhesives used mainly cyanoacrylate CyA aliphatic-resin glue very sparing use epoxy enjoy gluing sticks no foam used during construction used mediumhard balsa upper lower spars I32 shear webs tapering /16 shear webs toward outboard portion wings center wing used conventional aircraft plywood dihedral braces 1/16 sheeting leading edge front main spar created familiar D-tube gives smooth airfoil leading edge adds strength used NACA 2412 airfoil wing scale decided would get better slow-speed flight well better lift stall characteristics over scale symmetrical airfoil prototype root rib 22 inches long tapering six inches tip ribs except center section ribs 1/16 C-grain balsa /16 x 1/4 capstrips Round wingtips made laminating four layers 1/16 balsa around plywood form find laminated tips lighter stronger sheet balsa fin rudder outlines also laminated 1/16 balsa wing separates three pieces transport center section just under four feet long holds four motors associated wiring Left right outer sections wing measure just under three feet outer wing sections connected center section Gator RC aluminum phenolic tubing outer sections carries aileron servo extension wires plugging easily flight model covered silver Micafilm Realistic graphics supplied Sign Works Wharton New Jersey fuselage built using crutch method mounting formers upper lower keel strips After completing July1995 19 Wing separates three pieces transport 0-tube Clipper built almost entirely balsa enjoy gluing construction gives wing smooth airfoil adds strength sticks says author Span 114 inches Four Astro cobalt geared 05 motors 28-36 cells power Clipper Three-blade Grish lOx 6 props scale size model 314 took roughly 700 happy hobby hours complete Full-scale 314s began service January 1939 Type RC sport/Scale Wingspan 114 inches Motors Four Astro 05s Number channels Four Flying weight 144-1564 lb Construction Built-up Covering Micafilm fuselage half structure removed plan other fonner halves added outer surface finished sheet front aircraft 1/8 square stringers rear bottom fuselage planked 1/8 balsa strips lend themselves well curved surfaces light strong bottom hull seawings sponsons finished lightweight glass cloth Z-Poxy resin coated black paint fabricated cowls over balsa form using fiberglass cloth Z-Poxy Resin Thrust angles wing stabilizer incidence center gravity CG empirically arrived fact still being adjusted flight experience being gained used scale sizes parts including elevators ailerons rudders seem adequate 314 powered four Astro Cobalt geared 05 motors After thrust-testing three different brands propellers settled Grish three-bladed 10 x 6s scale size motors batteries wired series low pass filters motor glitch suppression filters designed built Cliff Schaible longtime modeling buddy have flown model 28 32 36 cells ranging 900 mAh 1400 mAh am also indebted John Tanzer design construction tips Keith Shaws article multiengine Electric airplanes December 1991 MAN inspiration elevator rudder servos mounted stabilizer removable transport needing have servo wires plugged extensions model assembled flight Two aileron servos likewise mounted wings four-foot-long stabilizer servo extension wires three-footlong aileron extension servo wires protected glitches Ace Noise Traps placed near receiver controls internal hiddenthere no visible pushrods horns cables Using JR PCM radio combination filters motors noise traps servo extensions combined inherent reliability electric motors have enjoyed 20 flights date Failure motor very remote Electric multiengine craft All-up flying weight ranges 144 1564 pounds depending flight batteries used translates wing loading about 22 ounces per square foot incredibly light Scale airplane sizeespecially Electric Plans available made changes during construction did revise construction drawings usable want build airplane similar badly enough did gather information draw plans build have no idea much fun can until try Computer programs available draw airfoils plans Mine hand-drawn dont own computer Wings Orient Stan Cohen Pan Americans Ocean Clippers Barry Taylor contain much interesting information invaluable during construction model Id love say 314 flew right off board just isnt John Tanzer side calm offer advice Bill Kramer present video camera made final checks aircraft Thirtytwo cells peak-charged installed wing bolted radio rangechecked controls verified proper movement labor love launched tepid water lake soon discovered taxiing model different other Electric glow-powered seaplanes sea wings did offer much flotation slight crosswind wingtip would dip water proper aileron input would lift wing model some forward motion required some throttle movement up elevator get water rudder deep enough water proper rudder input helped turn fuselage vary inputs speed model wind direction dictated finally got coordinated smoothly advanced throttle take off What great sound four three-bladed propellers made came up speed As model accelerated made hard curve left retarded throttle Another try going pretty straight before knew model air however still holding up elevator keep water rudder water 314 started 4050o climb banking hard left Nothing cut power model escaped easy cartwheel catching left wingtip water skewing model about After another try two got reasonably straight takeoff bad pitch oscillation shortly thereafter Back aircraft factory 20 Model Aviation ee Clipper awaits another trial Changes made original sea wings improve water handling HOE B i-u WARTHUR JTEr1 HIGH TEMP CERAMIC fLATERIAL COIIE ON ASK MEASKME ThIS BOEING 34 IS I4d T4E FAMOUS / NINA CLIPPER ACE THAT WAS 7A frRTN 50 ISCLAIMR TNIS MoNTHs FEA1VRE AIRORAIT AVE ANY PLANS CawLErEp AT ThE TIME H~P TO ORw THIS CUTAWAY 50 THE DRAWING SHOWS WHAT S11UcmRE COULO DIG OUTop TECT OTHE ARrIcLE THE RUIORS ARE THAT ACE NER USE THE ONL EJSTING 8ET QP PLANS TO LINE THEIR PARROTS CAGE. SOUNDS CREDIBLE TOME 7 rechecked number things including lateral balance checked throws control surfaces added fair amount exponential transmitter elevator control increased aileron travel reviewed thoughts placement CG 25% Mean Aerodynamic Chord MAC decided leave time being keeping mind old free flight axiom making too changes time Also aware nervousness caused some overcontrolling Second attempt flight weather good winds light Time another try see have flying model hangar queen comes time have put aside thoughts about much money time have put go launched Yankee Clipper water got taxied out lined up wind advanced throttle full power Acceleration smooth quickly up step made turn left soon airborne climbed out very realistically model left bank some 15 20 feet air climbing no obstructions ahead left As object entire winters labor climbed about 50 feet fed enough corrective aileron rudder maintain gentle left bank reduced power just maintain altitude trouble was holding full right aileron right rudder As model came around full circle reduced power hooray stopped turning left started gentle descent straight wind Great next flight tried turn model right liftoff No way determined turn left cut power landed again What decided reverse rotation two motors four motors swinging tractor propellers seems big torque P factor full-scale 314 licked problem varying pitch various engines using asymmetrical thrust Rigging method asymmetrical thrust beyond capabilities opted counter-rotating propellers two motors Electrics getting motors run reverse rotation easy simply reverse 22 Model Aviation 4221432GOT PROBLEM Rem a1 1-SOFT MOUNTED ENGINEJLVE IT WITH WRECKING GLOW DRIVERI 2-HARD TO GET AT PLUGIHEAD 3LARGE/DEEP COWLINGI 4-FINGERS CLOSE TO PROP LOCK FITS ALL STANDARD PLUGS5-SCALE PROJECT NO HOLER E Al OrE FROM K&B 2 STROKE TONEALOCA GLOW DRIVER ENYA 4 STROKEST#021 SINGLE$995 ST#022 TWIN$1395 IF rvr AVAflAKZ $100 $200 ODEL PRODUCTS CORPPO BOX 100 ALLAMUCHY NJ 07820908 850-1508 TNR Technical Inc 279 Douglas Avenue Aitamonte Springs FL 32714 407 682-4311 407 682-4469 Authorized SANYO Distributor 1 8003460601 1ZPJAHIOZEBLE NSOAAA1/3AAA394 591$300 N11OAA1/3M551 657..25300 NiSON 11232300 N225AE 1/3A650 642..39300 N250AAA AAA39417235300 N270AAA2/3AAA55111649300 KR600AE2/3A65010963300 N600AA AA54319481225 N-700AAC AA54319481300 KR800AAE M54319481300 KR1300SCSUBC866165158300 4 COIl ReceiverPacks$1200 5 Cell ReceiverPacks1500 SPECIFY SOLDER TABS-FREE OFCHARGE siZEDJAHIQZEBJE N650 Sc1/2 SUBC866101102$450 N600AR 190116450 Ni 000 5CR2/3 SUBO866129144450 KR1000AE4/SA650165 95450 KR1200AEA650190106450 KR1400AEA650190109500 N1400 SCRSUBO866165187450 KR1600SCE 866165165450 KR2000CC992192271450 4 Cell Receiver Packs $1800 5 Cell Receiver Packs 2250 SPECIFY SOLDER TABS FREE OF CHARGE UIAHI OZ EBLE KR1700AE4/3A650259 $750 Ni 700 SCAC 866165 50 KR2300 SCE 5/4 SUOC866192 50 KR2800 CEC992192 50 4 Cell Receiver Packs $3000 5 Cell Receiver Packs 3750 SPECIFY SOLDER TABS FREE OF CHARGE ILVIAJUZ Ji N4000 DRL0127236564..$995 KR4400 00127236511995 KR5000 DELD127229526..1200 4 Cell Receiver Packs $4000 5 Cell Receiver Packs 5000 SPECIFY SOLDER TABS FREE OF CHARGE 8N-600 M1995 8N-700 MC2195 8KR-800 ME2495 Available following configurations 1 FIat Pack 8 4 Sticks 2 Squares 2 Sticks 3 1 Stick 2 iiZIZ Two Sticks 2 Square Pack Extensions Futaba J$4006$500 Futaba G$400i2$500 Airtronics$40024$550 JFI/HiTec$40036$600 PS 6126V12AH$1200 PS 127012V70 AH$1995 Light Weight Sized Flat Width Per FootPer Foot 1 inch$10031/4 inch$200 11/2 inch$10033/4 inch$250 21/4 inch$150Sinch$300 23/4 inch$150 Add $500 shipping & handling 7% sales tax Florida residents positive negative leads readjust timing voihia motor runs backwards Fortunately able get pusher propellers needed same size pitch put tractor props number-three number-four motors pusher props number-one number-two next several flights less heartthumping still hands-off flier making small changes continues improve handling have made several really smooth grease-it-on landings old Ed Musick would have admitted pretty good Crosswind water handling still problem Bob Scarsdale Pan Am flight engineer friend Hank Anholzer former Pan Am mechanic have assured Pan Am Boeing tried various fixes sea wings mixed results several reasons Boeings designers used sea wings rather conventional tip floats Tip floats added drag out end wing whereas sea wings generated some lift able carry large amount fuel desirably low position aircraft also made access aircraft easy passengers have made changes sea wings model hope will improve its water handling have fair degree skill model building have enjoyed marvelous hobby 50 years project like would never have flown successfully help encouragement Thanks guys big thank wife encouragement help Its great pleasure satisfaction building flying model am very grateful nice comments modelers have seen believe aircraft beautiful flying boat ever take air serious about building model 314 wish correspond please write address below please enclose SASE 24 Modef Aviation Thorns 33 Cambridge Dr Berkeley Heigts NJ 07922 er Small Airfoil Technology uWflar Efficient scimitar shaped blades undercamber develop higher thrust lower RPMs Lower dB noise levels per pound thrust Available now seventeen sizes come springandsummerof 95 8x456 9x567 10x5678 11x678 12x68 13x81O MASTER AIRS CREW WINDSOR PROPELLER COMPANY 3219 Monier Circle e Rancho Cordova CA 95742 SASE free catalog

The Boeing 314 pre-World War II epitome class luxury airline travel 314 largest successful aircraft its day having started service Pan American World Airways System January 1939 314 preceded Pan Ams overseas service Martin 130 entered service October 1935 NC 14716 legendary China Clipper crossed Pacific Ocean November 11 1935 remembered airplane started long overwater flights Hawaii Midway Wake Guam Manila quest greater payload increased range led huge advances Sikorsky 5-42 Martin 130 Boeing 314 sensational performance timefar outperforming other designs Aircraft performance safety took large step forward 1934 advent variable-pitch propellers measurably aided range payload second advancement July1995 17 During initial tests 314 showed hard left tendency counterrotating props two motors solved problem ability feather propellers contributed safety reducing drag malfunctioning engine Charles Lindbergh Pan Am payroll technical consultant test-flew new potential routes assisted design testing new aircraft designs Pan Am company Juan Trippe Pan Ams founder guiding genius chief engineer operations manager Andre Priester decided 1931 types aircraft needed fly daring transportation routes flights westward Orient over Pacific Priester said seaplane carries its airport its hull prototype Scale model Yankee Clipper NC 18603 third production model twelve 3 14s probably famous best known group wingspan 152 feet length 106 feet carried 36 sleepers 74 day passengers crew 10 16 Top speed 193 mph cruising speed 140 180 mph Four 1600horsepower Curtiss Wright Twin Cyclones gave Clipper 565 feet per minute climb rate ceiling 21000 feet range up 5200 miles Maximum gross weight 84000 pounds landing speed low 70 mph Yankee Clipper crashed demolished Taugus River Portugal 647 pm February 22 1943 loss 24 people among USO entertainers diplomats some crew pilot Captain Rod Sullivan copilot initial Martin 130 flight Hawaii Manila 1935 experienced Pan Am pilot time having logged 3278 hours 314 survived never flew again Pan Am Yankee Clipper made 240 Atlantic crossings logging 8500 hours traveling million miles sad tragic ending beautiful aircraft Clippers took 350000 man-hours build cost Pan Am $700000 1939 Three twelve 3 14s built sold British During World War II invaluable United States Britain ferrying diplomats aircraft parts supplies ammunition other vital war material made 4000 ocean crossings carried 7 million pounds mail 60000 18 Model Aviation or Yankee Clipper NC 18603 third series twelve 3148 built Boeing passengers None lost enemy action 314s used United States government during war crewed Pan Am personnel Sadly left today drew construction plans threeviews start desired model realistic look would fly realistic manner very aware weight materials used project primarily built fly rather being museum piece competitive Scale model first scratch-built effort although have built numerous models plans usually variables have finalized designer copied Boeings design full-scale design practices necessarily translate model design practice respects rate head-scratching pondering wrenching experience doing building especially enjoyable creation flew successfully model took about 700 happy hobby hours build built scale 3/4 inch foot 1/16 scale gave wingspan 114 inches wing area 112 square feet Construction balsa except box holds motor batteries dihedral braces motor bulkheads two other small plywood pieces Adhesives used mainly cyanoacrylate CyA aliphatic-resin glue very sparing use epoxy enjoy gluing sticks no foam used during construction used mediumhard balsa upper lower spars I32 shear webs tapering /16 shear webs toward outboard portion wings center wing used conventional aircraft plywood dihedral braces 1/16 sheeting leading edge front main spar created familiar D-tube gives smooth airfoil leading edge adds strength used NACA 2412 airfoil wing scale decided would get better slow-speed flight well better lift stall characteristics over scale symmetrical airfoil prototype root rib 22 inches long tapering six inches tip ribs except center section ribs 1/16 C-grain balsa /16 x 1/4 capstrips Round wingtips made laminating four layers 1/16 balsa around plywood form find laminated tips lighter stronger sheet balsa fin rudder outlines also laminated 1/16 balsa wing separates three pieces transport center section just under four feet long holds four motors associated wiring Left right outer sections wing measure just under three feet outer wing sections connected center section Gator RC aluminum phenolic tubing outer sections carries aileron servo extension wires plugging easily flight model covered silver Micafilm Realistic graphics supplied Sign Works Wharton New Jersey fuselage built using crutch method mounting formers upper lower keel strips After completing July1995 19 Wing separates three pieces transport 0-tube Clipper built almost entirely balsa enjoy gluing construction gives wing smooth airfoil adds strength sticks says author Span 114 inches Four Astro cobalt geared 05 motors 28-36 cells power Clipper Three-blade Grish lOx 6 props scale size model 314 took roughly 700 happy hobby hours complete Full-scale 314s began service January 1939 Type RC sport/Scale Wingspan 114 inches Motors Four Astro 05s Number channels Four Flying weight 144-1564 lb Construction Built-up Covering Micafilm fuselage half structure removed plan other fonner halves added outer surface finished sheet front aircraft 1/8 square stringers rear bottom fuselage planked 1/8 balsa strips lend themselves well curved surfaces light strong bottom hull seawings sponsons finished lightweight glass cloth Z-Poxy resin coated black paint fabricated cowls over balsa form using fiberglass cloth Z-Poxy Resin Thrust angles wing stabilizer incidence center gravity CG empirically arrived fact still being adjusted flight experience being gained used scale sizes parts including elevators ailerons rudders seem adequate 314 powered four Astro Cobalt geared 05 motors After thrust-testing three different brands propellers settled Grish three-bladed 10 x 6s scale size motors batteries wired series low pass filters motor glitch suppression filters designed built Cliff Schaible longtime modeling buddy have flown model 28 32 36 cells ranging 900 mAh 1400 mAh am also indebted John Tanzer design construction tips Keith Shaws article multiengine Electric airplanes December 1991 MAN inspiration elevator rudder servos mounted stabilizer removable transport needing have servo wires plugged extensions model assembled flight Two aileron servos likewise mounted wings four-foot-long stabilizer servo extension wires three-footlong aileron extension servo wires protected glitches Ace Noise Traps placed near receiver controls internal hiddenthere no visible pushrods horns cables Using JR PCM radio combination filters motors noise traps servo extensions combined inherent reliability electric motors have enjoyed 20 flights date Failure motor very remote Electric multiengine craft All-up flying weight ranges 144 1564 pounds depending flight batteries used translates wing loading about 22 ounces per square foot incredibly light Scale airplane sizeespecially Electric Plans available made changes during construction did revise construction drawings usable want build airplane similar badly enough did gather information draw plans build have no idea much fun can until try Computer programs available draw airfoils plans Mine hand-drawn dont own computer Wings Orient Stan Cohen Pan Americans Ocean Clippers Barry Taylor contain much interesting information invaluable during construction model Id love say 314 flew right off board just isnt John Tanzer side calm offer advice Bill Kramer present video camera made final checks aircraft Thirtytwo cells peak-charged installed wing bolted radio rangechecked controls verified proper movement labor love launched tepid water lake soon discovered taxiing model different other Electric glow-powered seaplanes sea wings did offer much flotation slight crosswind wingtip would dip water proper aileron input would lift wing model some forward motion required some throttle movement up elevator get water rudder deep enough water proper rudder input helped turn fuselage vary inputs speed model wind direction dictated finally got coordinated smoothly advanced throttle take off What great sound four three-bladed propellers made came up speed As model accelerated made hard curve left retarded throttle Another try going pretty straight before knew model air however still holding up elevator keep water rudder water 314 started 4050o climb banking hard left Nothing cut power model escaped easy cartwheel catching left wingtip water skewing model about After another try two got reasonably straight takeoff bad pitch oscillation shortly thereafter Back aircraft factory 20 Model Aviation ee Clipper awaits another trial Changes made original sea wings improve water handling HOE B i-u WARTHUR JTEr1 HIGH TEMP CERAMIC fLATERIAL COIIE ON ASK MEASKME ThIS BOEING 34 IS I4d T4E FAMOUS / NINA CLIPPER ACE THAT WAS 7A frRTN 50 ISCLAIMR TNIS MoNTHs FEA1VRE AIRORAIT AVE ANY PLANS CawLErEp AT ThE TIME H~P TO ORw THIS CUTAWAY 50 THE DRAWING SHOWS WHAT S11UcmRE COULO DIG OUTop TECT OTHE ARrIcLE THE RUIORS ARE THAT ACE NER USE THE ONL EJSTING 8ET QP PLANS TO LINE THEIR PARROTS CAGE. SOUNDS CREDIBLE TOME 7 rechecked number things including lateral balance checked throws control surfaces added fair amount exponential transmitter elevator control increased aileron travel reviewed thoughts placement CG 25% Mean Aerodynamic Chord MAC decided leave time being keeping mind old free flight axiom making too changes time Also aware nervousness caused some overcontrolling Second attempt flight weather good winds light Time another try see have flying model hangar queen comes time have put aside thoughts about much money time have put go launched Yankee Clipper water got taxied out lined up wind advanced throttle full power Acceleration smooth quickly up step made turn left soon airborne climbed out very realistically model left bank some 15 20 feet air climbing no obstructions ahead left As object entire winters labor climbed about 50 feet fed enough corrective aileron rudder maintain gentle left bank reduced power just maintain altitude trouble was holding full right aileron right rudder As model came around full circle reduced power hooray stopped turning left started gentle descent straight wind Great next flight tried turn model right liftoff No way determined turn left cut power landed again What decided reverse rotation two motors four motors swinging tractor propellers seems big torque P factor full-scale 314 licked problem varying pitch various engines using asymmetrical thrust Rigging method asymmetrical thrust beyond capabilities opted counter-rotating propellers two motors Electrics getting motors run reverse rotation easy simply reverse 22 Model Aviation 4221432GOT PROBLEM Rem a1 1-SOFT MOUNTED ENGINEJLVE IT WITH WRECKING GLOW DRIVERI 2-HARD TO GET AT PLUGIHEAD 3LARGE/DEEP COWLINGI 4-FINGERS CLOSE TO PROP LOCK FITS ALL STANDARD PLUGS5-SCALE PROJECT NO HOLER E Al OrE FROM K&B 2 STROKE TONEALOCA GLOW DRIVER ENYA 4 STROKEST#021 SINGLE$995 ST#022 TWIN$1395 IF rvr AVAflAKZ $100 $200 ODEL PRODUCTS CORPPO BOX 100 ALLAMUCHY NJ 07820908 850-1508 TNR Technical Inc 279 Douglas Avenue Aitamonte Springs FL 32714 407 682-4311 407 682-4469 Authorized SANYO Distributor 1 8003460601 1ZPJAHIOZEBLE NSOAAA1/3AAA394 591$300 N11OAA1/3M551 657..25300 NiSON 11232300 N225AE 1/3A650 642..39300 N250AAA AAA39417235300 N270AAA2/3AAA55111649300 KR600AE2/3A65010963300 N600AA AA54319481225 N-700AAC AA54319481300 KR800AAE M54319481300 KR1300SCSUBC866165158300 4 COIl ReceiverPacks$1200 5 Cell ReceiverPacks1500 SPECIFY SOLDER TABS-FREE OFCHARGE siZEDJAHIQZEBJE N650 Sc1/2 SUBC866101102$450 N600AR 190116450 Ni 000 5CR2/3 SUBO866129144450 KR1000AE4/SA650165 95450 KR1200AEA650190106450 KR1400AEA650190109500 N1400 SCRSUBO866165187450 KR1600SCE 866165165450 KR2000CC992192271450 4 Cell Receiver Packs $1800 5 Cell Receiver Packs 2250 SPECIFY SOLDER TABS FREE OF CHARGE UIAHI OZ EBLE KR1700AE4/3A650259 $750 Ni 700 SCAC 866165 50 KR2300 SCE 5/4 SUOC866192 50 KR2800 CEC992192 50 4 Cell Receiver Packs $3000 5 Cell Receiver Packs 3750 SPECIFY SOLDER TABS FREE OF CHARGE ILVIAJUZ Ji N4000 DRL0127236564..$995 KR4400 00127236511995 KR5000 DELD127229526..1200 4 Cell Receiver Packs $4000 5 Cell Receiver Packs 5000 SPECIFY SOLDER TABS FREE OF CHARGE 8N-600 M1995 8N-700 MC2195 8KR-800 ME2495 Available following configurations 1 FIat Pack 8 4 Sticks 2 Squares 2 Sticks 3 1 Stick 2 iiZIZ Two Sticks 2 Square Pack Extensions Futaba J$4006$500 Futaba G$400i2$500 Airtronics$40024$550 JFI/HiTec$40036$600 PS 6126V12AH$1200 PS 127012V70 AH$1995 Light Weight Sized Flat Width Per FootPer Foot 1 inch$10031/4 inch$200 11/2 inch$10033/4 inch$250 21/4 inch$150Sinch$300 23/4 inch$150 Add $500 shipping & handling 7% sales tax Florida residents positive negative leads readjust timing voihia motor runs backwards Fortunately able get pusher propellers needed same size pitch put tractor props number-three number-four motors pusher props number-one number-two next several flights less heartthumping still hands-off flier making small changes continues improve handling have made several really smooth grease-it-on landings old Ed Musick would have admitted pretty good Crosswind water handling still problem Bob Scarsdale Pan Am flight engineer friend Hank Anholzer former Pan Am mechanic have assured Pan Am Boeing tried various fixes sea wings mixed results several reasons Boeings designers used sea wings rather conventional tip floats Tip floats added drag out end wing whereas sea wings generated some lift able carry large amount fuel desirably low position aircraft also made access aircraft easy passengers have made changes sea wings model hope will improve its water handling have fair degree skill model building have enjoyed marvelous hobby 50 years project like would never have flown successfully help encouragement Thanks guys big thank wife encouragement help Its great pleasure satisfaction building flying model am very grateful nice comments modelers have seen believe aircraft beautiful flying boat ever take air serious about building model 314 wish correspond please write address below please enclose SASE 24 Modef Aviation Thorns 33 Cambridge Dr Berkeley Heigts NJ 07922 er Small Airfoil Technology uWflar Efficient scimitar shaped blades undercamber develop higher thrust lower RPMs Lower dB noise levels per pound thrust Available now seventeen sizes come springandsummerof 95 8x456 9x567 10x5678 11x678 12x68 13x81O MASTER AIRS CREW WINDSOR PROPELLER COMPANY 3219 Monier Circle e Rancho Cordova CA 95742 SASE free catalog

The Boeing 314 pre-World War II epitome class luxury airline travel 314 largest successful aircraft its day having started service Pan American World Airways System January 1939 314 preceded Pan Ams overseas service Martin 130 entered service October 1935 NC 14716 legendary China Clipper crossed Pacific Ocean November 11 1935 remembered airplane started long overwater flights Hawaii Midway Wake Guam Manila quest greater payload increased range led huge advances Sikorsky 5-42 Martin 130 Boeing 314 sensational performance timefar outperforming other designs Aircraft performance safety took large step forward 1934 advent variable-pitch propellers measurably aided range payload second advancement July1995 17 During initial tests 314 showed hard left tendency counterrotating props two motors solved problem ability feather propellers contributed safety reducing drag malfunctioning engine Charles Lindbergh Pan Am payroll technical consultant test-flew new potential routes assisted design testing new aircraft designs Pan Am company Juan Trippe Pan Ams founder guiding genius chief engineer operations manager Andre Priester decided 1931 types aircraft needed fly daring transportation routes flights westward Orient over Pacific Priester said seaplane carries its airport its hull prototype Scale model Yankee Clipper NC 18603 third production model twelve 3 14s probably famous best known group wingspan 152 feet length 106 feet carried 36 sleepers 74 day passengers crew 10 16 Top speed 193 mph cruising speed 140 180 mph Four 1600horsepower Curtiss Wright Twin Cyclones gave Clipper 565 feet per minute climb rate ceiling 21000 feet range up 5200 miles Maximum gross weight 84000 pounds landing speed low 70 mph Yankee Clipper crashed demolished Taugus River Portugal 647 pm February 22 1943 loss 24 people among USO entertainers diplomats some crew pilot Captain Rod Sullivan copilot initial Martin 130 flight Hawaii Manila 1935 experienced Pan Am pilot time having logged 3278 hours 314 survived never flew again Pan Am Yankee Clipper made 240 Atlantic crossings logging 8500 hours traveling million miles sad tragic ending beautiful aircraft Clippers took 350000 man-hours build cost Pan Am $700000 1939 Three twelve 3 14s built sold British During World War II invaluable United States Britain ferrying diplomats aircraft parts supplies ammunition other vital war material made 4000 ocean crossings carried 7 million pounds mail 60000 18 Model Aviation or Yankee Clipper NC 18603 third series twelve 3148 built Boeing passengers None lost enemy action 314s used United States government during war crewed Pan Am personnel Sadly left today drew construction plans threeviews start desired model realistic look would fly realistic manner very aware weight materials used project primarily built fly rather being museum piece competitive Scale model first scratch-built effort although have built numerous models plans usually variables have finalized designer copied Boeings design full-scale design practices necessarily translate model design practice respects rate head-scratching pondering wrenching experience doing building especially enjoyable creation flew successfully model took about 700 happy hobby hours build built scale 3/4 inch foot 1/16 scale gave wingspan 114 inches wing area 112 square feet Construction balsa except box holds motor batteries dihedral braces motor bulkheads two other small plywood pieces Adhesives used mainly cyanoacrylate CyA aliphatic-resin glue very sparing use epoxy enjoy gluing sticks no foam used during construction used mediumhard balsa upper lower spars I32 shear webs tapering /16 shear webs toward outboard portion wings center wing used conventional aircraft plywood dihedral braces 1/16 sheeting leading edge front main spar created familiar D-tube gives smooth airfoil leading edge adds strength used NACA 2412 airfoil wing scale decided would get better slow-speed flight well better lift stall characteristics over scale symmetrical airfoil prototype root rib 22 inches long tapering six inches tip ribs except center section ribs 1/16 C-grain balsa /16 x 1/4 capstrips Round wingtips made laminating four layers 1/16 balsa around plywood form find laminated tips lighter stronger sheet balsa fin rudder outlines also laminated 1/16 balsa wing separates three pieces transport center section just under four feet long holds four motors associated wiring Left right outer sections wing measure just under three feet outer wing sections connected center section Gator RC aluminum phenolic tubing outer sections carries aileron servo extension wires plugging easily flight model covered silver Micafilm Realistic graphics supplied Sign Works Wharton New Jersey fuselage built using crutch method mounting formers upper lower keel strips After completing July1995 19 Wing separates three pieces transport 0-tube Clipper built almost entirely balsa enjoy gluing construction gives wing smooth airfoil adds strength sticks says author Span 114 inches Four Astro cobalt geared 05 motors 28-36 cells power Clipper Three-blade Grish lOx 6 props scale size model 314 took roughly 700 happy hobby hours complete Full-scale 314s began service January 1939 Type RC sport/Scale Wingspan 114 inches Motors Four Astro 05s Number channels Four Flying weight 144-1564 lb Construction Built-up Covering Micafilm fuselage half structure removed plan other fonner halves added outer surface finished sheet front aircraft 1/8 square stringers rear bottom fuselage planked 1/8 balsa strips lend themselves well curved surfaces light strong bottom hull seawings sponsons finished lightweight glass cloth Z-Poxy resin coated black paint fabricated cowls over balsa form using fiberglass cloth Z-Poxy Resin Thrust angles wing stabilizer incidence center gravity CG empirically arrived fact still being adjusted flight experience being gained used scale sizes parts including elevators ailerons rudders seem adequate 314 powered four Astro Cobalt geared 05 motors After thrust-testing three different brands propellers settled Grish three-bladed 10 x 6s scale size motors batteries wired series low pass filters motor glitch suppression filters designed built Cliff Schaible longtime modeling buddy have flown model 28 32 36 cells ranging 900 mAh 1400 mAh am also indebted John Tanzer design construction tips Keith Shaws article multiengine Electric airplanes December 1991 MAN inspiration elevator rudder servos mounted stabilizer removable transport needing have servo wires plugged extensions model assembled flight Two aileron servos likewise mounted wings four-foot-long stabilizer servo extension wires three-footlong aileron extension servo wires protected glitches Ace Noise Traps placed near receiver controls internal hiddenthere no visible pushrods horns cables Using JR PCM radio combination filters motors noise traps servo extensions combined inherent reliability electric motors have enjoyed 20 flights date Failure motor very remote Electric multiengine craft All-up flying weight ranges 144 1564 pounds depending flight batteries used translates wing loading about 22 ounces per square foot incredibly light Scale airplane sizeespecially Electric Plans available made changes during construction did revise construction drawings usable want build airplane similar badly enough did gather information draw plans build have no idea much fun can until try Computer programs available draw airfoils plans Mine hand-drawn dont own computer Wings Orient Stan Cohen Pan Americans Ocean Clippers Barry Taylor contain much interesting information invaluable during construction model Id love say 314 flew right off board just isnt John Tanzer side calm offer advice Bill Kramer present video camera made final checks aircraft Thirtytwo cells peak-charged installed wing bolted radio rangechecked controls verified proper movement labor love launched tepid water lake soon discovered taxiing model different other Electric glow-powered seaplanes sea wings did offer much flotation slight crosswind wingtip would dip water proper aileron input would lift wing model some forward motion required some throttle movement up elevator get water rudder deep enough water proper rudder input helped turn fuselage vary inputs speed model wind direction dictated finally got coordinated smoothly advanced throttle take off What great sound four three-bladed propellers made came up speed As model accelerated made hard curve left retarded throttle Another try going pretty straight before knew model air however still holding up elevator keep water rudder water 314 started 4050o climb banking hard left Nothing cut power model escaped easy cartwheel catching left wingtip water skewing model about After another try two got reasonably straight takeoff bad pitch oscillation shortly thereafter Back aircraft factory 20 Model Aviation ee Clipper awaits another trial Changes made original sea wings improve water handling HOE B i-u WARTHUR JTEr1 HIGH TEMP CERAMIC fLATERIAL COIIE ON ASK MEASKME ThIS BOEING 34 IS I4d T4E FAMOUS / NINA CLIPPER ACE THAT WAS 7A frRTN 50 ISCLAIMR TNIS MoNTHs FEA1VRE AIRORAIT AVE ANY PLANS CawLErEp AT ThE TIME H~P TO ORw THIS CUTAWAY 50 THE DRAWING SHOWS WHAT S11UcmRE COULO DIG OUTop TECT OTHE ARrIcLE THE RUIORS ARE THAT ACE NER USE THE ONL EJSTING 8ET QP PLANS TO LINE THEIR PARROTS CAGE. SOUNDS CREDIBLE TOME 7 rechecked number things including lateral balance checked throws control surfaces added fair amount exponential transmitter elevator control increased aileron travel reviewed thoughts placement CG 25% Mean Aerodynamic Chord MAC decided leave time being keeping mind old free flight axiom making too changes time Also aware nervousness caused some overcontrolling Second attempt flight weather good winds light Time another try see have flying model hangar queen comes time have put aside thoughts about much money time have put go launched Yankee Clipper water got taxied out lined up wind advanced throttle full power Acceleration smooth quickly up step made turn left soon airborne climbed out very realistically model left bank some 15 20 feet air climbing no obstructions ahead left As object entire winters labor climbed about 50 feet fed enough corrective aileron rudder maintain gentle left bank reduced power just maintain altitude trouble was holding full right aileron right rudder As model came around full circle reduced power hooray stopped turning left started gentle descent straight wind Great next flight tried turn model right liftoff No way determined turn left cut power landed again What decided reverse rotation two motors four motors swinging tractor propellers seems big torque P factor full-scale 314 licked problem varying pitch various engines using asymmetrical thrust Rigging method asymmetrical thrust beyond capabilities opted counter-rotating propellers two motors Electrics getting motors run reverse rotation easy simply reverse 22 Model Aviation 4221432GOT PROBLEM Rem a1 1-SOFT MOUNTED ENGINEJLVE IT WITH WRECKING GLOW DRIVERI 2-HARD TO GET AT PLUGIHEAD 3LARGE/DEEP COWLINGI 4-FINGERS CLOSE TO PROP LOCK FITS ALL STANDARD PLUGS5-SCALE PROJECT NO HOLER E Al OrE FROM K&B 2 STROKE TONEALOCA GLOW DRIVER ENYA 4 STROKEST#021 SINGLE$995 ST#022 TWIN$1395 IF rvr AVAflAKZ $100 $200 ODEL PRODUCTS CORPPO BOX 100 ALLAMUCHY NJ 07820908 850-1508 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CHARGE ILVIAJUZ Ji N4000 DRL0127236564..$995 KR4400 00127236511995 KR5000 DELD127229526..1200 4 Cell Receiver Packs $4000 5 Cell Receiver Packs 5000 SPECIFY SOLDER TABS FREE OF CHARGE 8N-600 M1995 8N-700 MC2195 8KR-800 ME2495 Available following configurations 1 FIat Pack 8 4 Sticks 2 Squares 2 Sticks 3 1 Stick 2 iiZIZ Two Sticks 2 Square Pack Extensions Futaba J$4006$500 Futaba G$400i2$500 Airtronics$40024$550 JFI/HiTec$40036$600 PS 6126V12AH$1200 PS 127012V70 AH$1995 Light Weight Sized Flat Width Per FootPer Foot 1 inch$10031/4 inch$200 11/2 inch$10033/4 inch$250 21/4 inch$150Sinch$300 23/4 inch$150 Add $500 shipping & handling 7% sales tax Florida residents positive negative leads readjust timing voihia motor runs backwards Fortunately able get pusher propellers needed same size pitch put tractor props number-three number-four motors pusher props number-one number-two next several flights less heartthumping still hands-off flier making small changes continues improve handling have made several really smooth grease-it-on landings old Ed Musick would have admitted pretty good Crosswind water handling still problem Bob Scarsdale Pan Am flight engineer friend Hank Anholzer former Pan Am mechanic have assured Pan Am Boeing tried various fixes sea wings mixed results several reasons Boeings designers used sea wings rather conventional tip floats Tip floats added drag out end wing whereas sea wings generated some lift able carry large amount fuel desirably low position aircraft also made access aircraft easy passengers have made changes sea wings model hope will improve its water handling have fair degree skill model building have enjoyed marvelous hobby 50 years project like would never have flown successfully help encouragement Thanks guys big thank wife encouragement help Its great pleasure satisfaction building flying model am very grateful nice comments modelers have seen believe aircraft beautiful flying boat ever take air serious about building model 314 wish correspond please write address below please enclose SASE 24 Modef Aviation Thorns 33 Cambridge Dr Berkeley Heigts NJ 07922 er Small Airfoil Technology uWflar Efficient scimitar shaped blades undercamber develop higher thrust lower RPMs Lower dB noise levels per pound thrust Available now seventeen sizes come springandsummerof 95 8x456 9x567 10x5678 11x678 12x68 13x81O MASTER AIRS CREW WINDSOR PROPELLER COMPANY 3219 Monier Circle e Rancho Cordova CA 95742 SASE free catalog