MY 1/12-scale Vultee BT-13 come along well until problem canopy struck airplane strongly dependent appearance canopy article sort show-and-tell about working out canopy problems did produce jewel item satisfied model also leaming experience can make next better photos show monster Worse still model required access cockpit spaces After lots scheming sketching began seem reasonable sliding sections like full-size aircraft would work much later began look would also easiest flight-worthy way make canopy full-scale canopy really very complex Shown page BT-13 Technical Order showing parts appearance segment full-scale canopy objective represent canopy small scale violating sense reality obtain much functional operation can get Cool weather takeoff landing canopy po sition normal cruise warm weather Note slide blocks wire rail incon spicuous Canopy frame painted using plastic enamel India ink black edges frames Black wing walk shows wing top 22 Model Aviation canopy shown fully open open provides access pushrods battery charge socket interior details allows small CO changes Clearly shows three elements three heights clearance during trial assembly adjusted remove cleaning reinstall clean fingers after airframe complete Canopies scale really too small complex extruded slide rails roller elements Such details possible museum models built jewelers practical interest flyable structures What can build neat simulations come very close appearance function real thing Canopies models take punishment handling sudden stoppage model Most models stop tripping over something whip over side Accordingly model canopy must held down kept slamming forward BT-l 3 uses 5-part canopy three fixed elements windshield center canopy section rear closure two movable sections rear sliding canopy moves forward under fixed center element forward element slides back over fixed center element Clearly three nested sections must three overall heights windshield height dictates height forward sliding element rear fixed closure must match height aft sliding element use vacuum formed plastic canopy helps because elements want stay correct shape form block made vacuum forming complete canopy three canopy pieces drawn block photo shows block two full-length canopies produced canopy vacuum formed 040 butyrate sheet 028 030 thick after forming butyrate sheet welds beautifully using solvent pressure winding up optically clear total thickness great mechanical strength found out two small scraps capillary amount Aerogloss Thinner center fixed element attached fuselage mount surface deck four plastic tabs cement-welded its four lower corners rear tabs external forward tabs internal tabs inserted slots canopy deck rearmost external tabs double thickness stock top drilled 1/3 2 slide music wire forward ends pair external slide wires inserted holes base windshield establish tracks front sliding element front sliding element has four drilled laminated plastic blocks cemented its lower corners rear sliding element held down guided its forward edge being inside fixed center portion its rear several reten tion options available First 1/32 slide wires continued way back drilled block similar front sliding element elongated hole slot can function hold-down support hole must elongated prevent bringing rear corners outward forward position As alternate separate pair slide wires can placed inside outside rear sliding element Having explained arrangement tech niques can attach particular canopy such BT- 13 AT-6 other aircraft similar cockpit enclosures Establish fuselage canopy deck surface flat parallel perpendicular airplane center line Make workboard duplicate layout internal external margins cockpit ledges three fixed elements will mounted workboard will allow establish clearances alignment handling damage model itself simple matter transfer assembly later important canopy deck true flat both model workboard assembly fixture workboard cement external guide strips forward sliding canopy center fixed portion may also want place jig strips blocks rear Continued page 112 September 1980 23 Canopy drawn left block center trimmed canopy Save plastic scrap tor aetails plan cut carefully Form block glued up fir centerline glue joint pigmentea always visible Block made square parallel centerline Some idea tfle complexityota Tull-scalecanopy evigenirrom thisdetail drawing portion canopy shown black tiny figure airplane lower left minute two study will delight simplicity authors Vultee BT-1 3 canopy Details attaching sliding self evident Ned owned BT years Favorite natch WHEELS CONTROL-UNEFREE-FUGHT SCALE PILOTS CYUNDERS ENGINE KITS MACHINE GUN KITS PLASTIC DISPLAY MODELS SEND $1 FOR COMPLETE ILLUSTRATED CATALOG DEPT MA PAWNEE ST SAN MARCOS CA 9 VINTAGESMOOTHGOLDEN AGENEW sizes21/3CONTOURsizes214BALLOON 3431/i"234 31/i 13341314 133h2hz4/ 11443/i114334 11/44%31451/4 11451144s/ 11/i53 156/a214514 1/a6A AiMs sliding clearance mentioned above time hold-down tabs attached excess length extending below deck level assembly should tried its fit fuselage careful windshield rear closure correct height slide blocks ride size 1/32 diameter music wire laminated after groove filed both matching cemented surfaces groove will followed #60 drill sharp end piece freshly cut 1/32 wire Make least ten thesewell oversize may trimmed have wire hole parallel perpendicular edges After assembly checked fitting fuselage deck wise establish guide wire positions attach slider blocks working workboard fixture Once satisfaction can mask transparent sections paint frames Canopy frames painted using aluminum pig mented dope masked cellophane scotch tape Mounting fuselage becomes simple task can done last item final assembly RC Aerobatics/Van Putte continued page 25 purchased local electronics store $230 figure Im worth ground lug went under transformer mounting screw show elsewhere column Gerrys convinced Future lots charger will have charger short-circuit reverse-polarity protected batteries arent Five minutes hooked up backwards wont destroy bat teries 5 hours will right save Observations experiences MEN C-50/4 charger I The charger usually goes High rate charging few minutes no matter much have used batteries doesnt happen immediately Sometimes takes 30 seconds switch take place 2 If need reassurance charger really working two ways initiate High rate charging recommended way c batteries charger plug charger 110 VAC supply alterna tive Ivc using ill effects momentarily connect charger pack polarity reversed High rate usually comes plug charger correctly after treatment 3 This great last charger As examplc last Saturday spent morning yard helicopter came lunch plugged system C-50/4 lunch over ready continue flying half-hour charger puts back about charge 4 The trickle charger great too leave helicopter connected time its always fully charged ready go 5 If charger seems noisy tighten screws bend side-plates little Its quiet everything tight 6 Heres Gerry Jarvis Always dis connect charger before turning RC system might unlucky enough have switch makes up system before releases charger case high voltage charger might damage system 7 How about dont need ESV tell its right go flying High rate LED out youre ready Well George what really think charger obsoletes charger own complaint wasnt set up charge 9-cell Cox/Sanwa transmitters Gerry sold us adjusted satisfy needs stamped 5 its chest added catalog Model IV time next year expect see dozen imitations market theyll have hustle beat price $3695 list closing Id like acknowledge postcard John Deneke Glen Rock NJ sent May 1979 John reports has fixing RC systems 12 years has storing batteries C/l00 trickle charger longer Hes found no ill effects process C-50/4 works different principle may find Johns testimony dispells some doubts about continuous storage trickle charge Thanks John Keep postmen busy thanks reading column George M Myers 70 Froehlich Farm Roaa Hicks rule NY 11801 Canopies Kragness continued page 23 internal sliding element Locate make slots center canopy tabs make matching slots fuselage deck course good idea coat transparent areas masking material both inside out Fingers bench top tools will carry ccment thinncr scratches smears will occur unless some protection first applied Now determine proper windshield height drawing set place place forward unit between guides measure its height Trim away lower edges until reaches height doing take care remains symmetrical parallel deck Now cut other two pieces nested inside other relative heights allow about 0 10 clearance top between center element sliding section necessary establish front sliding element windshield height first others pro gressively reduced height result density example almost 25% elevator deflection required same size loop airplane 7000 feet sea level effect aileron control compli cated Lower air density causes reduction torque generated deflection ailerons also causes reduction reverse torque generated rolling airplane Since two torques oppose other maximum roll rate airplane can achieve full aileron throw effect air density maximum roll rate generally found increase roll rate altitude other words fliers find airplanes need less aileron throw altitude sea level third effect altitude can real problem pattern fliers Power output engines ability propellers convert rotary motion thrust dramatically affected air density overall effect operation altitude available thrust varies approximately square density Compared sea level thrust available 7000 feet about 66% can expected sea level Since vertical performance strongly affected thrust available loss st can disastrous Sport fliers will find flying altitude may require moving up engine size compensate loss available thrust Pattern fliers generally able since competition rules limit engine size 61 cubic inches possibility should considered pattern flying altitude build 40-size airplane power 60size engine Flying airplanes higher altitudes can done requires lot care persistence us sea level fliers can think about having fly 5000 10000 feet get depressed problems great things about RC oriented newsletters AMA forwards reading humor contain An excel lent example published SIRS Sentral Illinois Radio Society newsleter co-editors Bill Bev Sellberg feature sort Dear Abby column character called Rudder Brudder issue contained following Dear Rudder Brudder out flying beautiful day last fall bit problem 112 Model Aviation SCALE RADIO CONTROL
Edition: Model Aviation - 1980/09
Page Numbers: 22, 23, 112
MY 1/12-scale Vultee BT-13 come along well until problem canopy struck airplane strongly dependent appearance canopy article sort show-and-tell about working out canopy problems did produce jewel item satisfied model also leaming experience can make next better photos show monster Worse still model required access cockpit spaces After lots scheming sketching began seem reasonable sliding sections like full-size aircraft would work much later began look would also easiest flight-worthy way make canopy full-scale canopy really very complex Shown page BT-13 Technical Order showing parts appearance segment full-scale canopy objective represent canopy small scale violating sense reality obtain much functional operation can get Cool weather takeoff landing canopy po sition normal cruise warm weather Note slide blocks wire rail incon spicuous Canopy frame painted using plastic enamel India ink black edges frames Black wing walk shows wing top 22 Model Aviation canopy shown fully open open provides access pushrods battery charge socket interior details allows small CO changes Clearly shows three elements three heights clearance during trial assembly adjusted remove cleaning reinstall clean fingers after airframe complete Canopies scale really too small complex extruded slide rails roller elements Such details possible museum models built jewelers practical interest flyable structures What can build neat simulations come very close appearance function real thing Canopies models take punishment handling sudden stoppage model Most models stop tripping over something whip over side Accordingly model canopy must held down kept slamming forward BT-l 3 uses 5-part canopy three fixed elements windshield center canopy section rear closure two movable sections rear sliding canopy moves forward under fixed center element forward element slides back over fixed center element Clearly three nested sections must three overall heights windshield height dictates height forward sliding element rear fixed closure must match height aft sliding element use vacuum formed plastic canopy helps because elements want stay correct shape form block made vacuum forming complete canopy three canopy pieces drawn block photo shows block two full-length canopies produced canopy vacuum formed 040 butyrate sheet 028 030 thick after forming butyrate sheet welds beautifully using solvent pressure winding up optically clear total thickness great mechanical strength found out two small scraps capillary amount Aerogloss Thinner center fixed element attached fuselage mount surface deck four plastic tabs cement-welded its four lower corners rear tabs external forward tabs internal tabs inserted slots canopy deck rearmost external tabs double thickness stock top drilled 1/3 2 slide music wire forward ends pair external slide wires inserted holes base windshield establish tracks front sliding element front sliding element has four drilled laminated plastic blocks cemented its lower corners rear sliding element held down guided its forward edge being inside fixed center portion its rear several reten tion options available First 1/32 slide wires continued way back drilled block similar front sliding element elongated hole slot can function hold-down support hole must elongated prevent bringing rear corners outward forward position As alternate separate pair slide wires can placed inside outside rear sliding element Having explained arrangement tech niques can attach particular canopy such BT- 13 AT-6 other aircraft similar cockpit enclosures Establish fuselage canopy deck surface flat parallel perpendicular airplane center line Make workboard duplicate layout internal external margins cockpit ledges three fixed elements will mounted workboard will allow establish clearances alignment handling damage model itself simple matter transfer assembly later important canopy deck true flat both model workboard assembly fixture workboard cement external guide strips forward sliding canopy center fixed portion may also want place jig strips blocks rear Continued page 112 September 1980 23 Canopy drawn left block center trimmed canopy Save plastic scrap tor aetails plan cut carefully Form block glued up fir centerline glue joint pigmentea always visible Block made square parallel centerline Some idea tfle complexityota Tull-scalecanopy evigenirrom thisdetail drawing portion canopy shown black tiny figure airplane lower left minute two study will delight simplicity authors Vultee BT-1 3 canopy Details attaching sliding self evident Ned owned BT years Favorite natch WHEELS CONTROL-UNEFREE-FUGHT SCALE PILOTS CYUNDERS ENGINE KITS MACHINE GUN KITS PLASTIC DISPLAY MODELS SEND $1 FOR COMPLETE ILLUSTRATED CATALOG DEPT MA PAWNEE ST SAN MARCOS CA 9 VINTAGESMOOTHGOLDEN AGENEW sizes21/3CONTOURsizes214BALLOON 3431/i"234 31/i 13341314 133h2hz4/ 11443/i114334 11/44%31451/4 11451144s/ 11/i53 156/a214514 1/a6A AiMs sliding clearance mentioned above time hold-down tabs attached excess length extending below deck level assembly should tried its fit fuselage careful windshield rear closure correct height slide blocks ride size 1/32 diameter music wire laminated after groove filed both matching cemented surfaces groove will followed #60 drill sharp end piece freshly cut 1/32 wire Make least ten thesewell oversize may trimmed have wire hole parallel perpendicular edges After assembly checked fitting fuselage deck wise establish guide wire positions attach slider blocks working workboard fixture Once satisfaction can mask transparent sections paint frames Canopy frames painted using aluminum pig mented dope masked cellophane scotch tape Mounting fuselage becomes simple task can done last item final assembly RC Aerobatics/Van Putte continued page 25 purchased local electronics store $230 figure Im worth ground lug went under transformer mounting screw show elsewhere column Gerrys convinced Future lots charger will have charger short-circuit reverse-polarity protected batteries arent Five minutes hooked up backwards wont destroy bat teries 5 hours will right save Observations experiences MEN C-50/4 charger I The charger usually goes High rate charging few minutes no matter much have used batteries doesnt happen immediately Sometimes takes 30 seconds switch take place 2 If need reassurance charger really working two ways initiate High rate charging recommended way c batteries charger plug charger 110 VAC supply alterna tive Ivc using ill effects momentarily connect charger pack polarity reversed High rate usually comes plug charger correctly after treatment 3 This great last charger As examplc last Saturday spent morning yard helicopter came lunch plugged system C-50/4 lunch over ready continue flying half-hour charger puts back about charge 4 The trickle charger great too leave helicopter connected time its always fully charged ready go 5 If charger seems noisy tighten screws bend side-plates little Its quiet everything tight 6 Heres Gerry Jarvis Always dis connect charger before turning RC system might unlucky enough have switch makes up system before releases charger case high voltage charger might damage system 7 How about dont need ESV tell its right go flying High rate LED out youre ready Well George what really think charger obsoletes charger own complaint wasnt set up charge 9-cell Cox/Sanwa transmitters Gerry sold us adjusted satisfy needs stamped 5 its chest added catalog Model IV time next year expect see dozen imitations market theyll have hustle beat price $3695 list closing Id like acknowledge postcard John Deneke Glen Rock NJ sent May 1979 John reports has fixing RC systems 12 years has storing batteries C/l00 trickle charger longer Hes found no ill effects process C-50/4 works different principle may find Johns testimony dispells some doubts about continuous storage trickle charge Thanks John Keep postmen busy thanks reading column George M Myers 70 Froehlich Farm Roaa Hicks rule NY 11801 Canopies Kragness continued page 23 internal sliding element Locate make slots center canopy tabs make matching slots fuselage deck course good idea coat transparent areas masking material both inside out Fingers bench top tools will carry ccment thinncr scratches smears will occur unless some protection first applied Now determine proper windshield height drawing set place place forward unit between guides measure its height Trim away lower edges until reaches height doing take care remains symmetrical parallel deck Now cut other two pieces nested inside other relative heights allow about 0 10 clearance top between center element sliding section necessary establish front sliding element windshield height first others pro gressively reduced height result density example almost 25% elevator deflection required same size loop airplane 7000 feet sea level effect aileron control compli cated Lower air density causes reduction torque generated deflection ailerons also causes reduction reverse torque generated rolling airplane Since two torques oppose other maximum roll rate airplane can achieve full aileron throw effect air density maximum roll rate generally found increase roll rate altitude other words fliers find airplanes need less aileron throw altitude sea level third effect altitude can real problem pattern fliers Power output engines ability propellers convert rotary motion thrust dramatically affected air density overall effect operation altitude available thrust varies approximately square density Compared sea level thrust available 7000 feet about 66% can expected sea level Since vertical performance strongly affected thrust available loss st can disastrous Sport fliers will find flying altitude may require moving up engine size compensate loss available thrust Pattern fliers generally able since competition rules limit engine size 61 cubic inches possibility should considered pattern flying altitude build 40-size airplane power 60size engine Flying airplanes higher altitudes can done requires lot care persistence us sea level fliers can think about having fly 5000 10000 feet get depressed problems great things about RC oriented newsletters AMA forwards reading humor contain An excel lent example published SIRS Sentral Illinois Radio Society newsleter co-editors Bill Bev Sellberg feature sort Dear Abby column character called Rudder Brudder issue contained following Dear Rudder Brudder out flying beautiful day last fall bit problem 112 Model Aviation SCALE RADIO CONTROL
Edition: Model Aviation - 1980/09
Page Numbers: 22, 23, 112
MY 1/12-scale Vultee BT-13 come along well until problem canopy struck airplane strongly dependent appearance canopy article sort show-and-tell about working out canopy problems did produce jewel item satisfied model also leaming experience can make next better photos show monster Worse still model required access cockpit spaces After lots scheming sketching began seem reasonable sliding sections like full-size aircraft would work much later began look would also easiest flight-worthy way make canopy full-scale canopy really very complex Shown page BT-13 Technical Order showing parts appearance segment full-scale canopy objective represent canopy small scale violating sense reality obtain much functional operation can get Cool weather takeoff landing canopy po sition normal cruise warm weather Note slide blocks wire rail incon spicuous Canopy frame painted using plastic enamel India ink black edges frames Black wing walk shows wing top 22 Model Aviation canopy shown fully open open provides access pushrods battery charge socket interior details allows small CO changes Clearly shows three elements three heights clearance during trial assembly adjusted remove cleaning reinstall clean fingers after airframe complete Canopies scale really too small complex extruded slide rails roller elements Such details possible museum models built jewelers practical interest flyable structures What can build neat simulations come very close appearance function real thing Canopies models take punishment handling sudden stoppage model Most models stop tripping over something whip over side Accordingly model canopy must held down kept slamming forward BT-l 3 uses 5-part canopy three fixed elements windshield center canopy section rear closure two movable sections rear sliding canopy moves forward under fixed center element forward element slides back over fixed center element Clearly three nested sections must three overall heights windshield height dictates height forward sliding element rear fixed closure must match height aft sliding element use vacuum formed plastic canopy helps because elements want stay correct shape form block made vacuum forming complete canopy three canopy pieces drawn block photo shows block two full-length canopies produced canopy vacuum formed 040 butyrate sheet 028 030 thick after forming butyrate sheet welds beautifully using solvent pressure winding up optically clear total thickness great mechanical strength found out two small scraps capillary amount Aerogloss Thinner center fixed element attached fuselage mount surface deck four plastic tabs cement-welded its four lower corners rear tabs external forward tabs internal tabs inserted slots canopy deck rearmost external tabs double thickness stock top drilled 1/3 2 slide music wire forward ends pair external slide wires inserted holes base windshield establish tracks front sliding element front sliding element has four drilled laminated plastic blocks cemented its lower corners rear sliding element held down guided its forward edge being inside fixed center portion its rear several reten tion options available First 1/32 slide wires continued way back drilled block similar front sliding element elongated hole slot can function hold-down support hole must elongated prevent bringing rear corners outward forward position As alternate separate pair slide wires can placed inside outside rear sliding element Having explained arrangement tech niques can attach particular canopy such BT- 13 AT-6 other aircraft similar cockpit enclosures Establish fuselage canopy deck surface flat parallel perpendicular airplane center line Make workboard duplicate layout internal external margins cockpit ledges three fixed elements will mounted workboard will allow establish clearances alignment handling damage model itself simple matter transfer assembly later important canopy deck true flat both model workboard assembly fixture workboard cement external guide strips forward sliding canopy center fixed portion may also want place jig strips blocks rear Continued page 112 September 1980 23 Canopy drawn left block center trimmed canopy Save plastic scrap tor aetails plan cut carefully Form block glued up fir centerline glue joint pigmentea always visible Block made square parallel centerline Some idea tfle complexityota Tull-scalecanopy evigenirrom thisdetail drawing portion canopy shown black tiny figure airplane lower left minute two study will delight simplicity authors Vultee BT-1 3 canopy Details attaching sliding self evident Ned owned BT years Favorite natch WHEELS CONTROL-UNEFREE-FUGHT SCALE PILOTS CYUNDERS ENGINE KITS MACHINE GUN KITS PLASTIC DISPLAY MODELS SEND $1 FOR COMPLETE ILLUSTRATED CATALOG DEPT MA PAWNEE ST SAN MARCOS CA 9 VINTAGESMOOTHGOLDEN AGENEW sizes21/3CONTOURsizes214BALLOON 3431/i"234 31/i 13341314 133h2hz4/ 11443/i114334 11/44%31451/4 11451144s/ 11/i53 156/a214514 1/a6A AiMs sliding clearance mentioned above time hold-down tabs attached excess length extending below deck level assembly should tried its fit fuselage careful windshield rear closure correct height slide blocks ride size 1/32 diameter music wire laminated after groove filed both matching cemented surfaces groove will followed #60 drill sharp end piece freshly cut 1/32 wire Make least ten thesewell oversize may trimmed have wire hole parallel perpendicular edges After assembly checked fitting fuselage deck wise establish guide wire positions attach slider blocks working workboard fixture Once satisfaction can mask transparent sections paint frames Canopy frames painted using aluminum pig mented dope masked cellophane scotch tape Mounting fuselage becomes simple task can done last item final assembly RC Aerobatics/Van Putte continued page 25 purchased local electronics store $230 figure Im worth ground lug went under transformer mounting screw show elsewhere column Gerrys convinced Future lots charger will have charger short-circuit reverse-polarity protected batteries arent Five minutes hooked up backwards wont destroy bat teries 5 hours will right save Observations experiences MEN C-50/4 charger I The charger usually goes High rate charging few minutes no matter much have used batteries doesnt happen immediately Sometimes takes 30 seconds switch take place 2 If need reassurance charger really working two ways initiate High rate charging recommended way c batteries charger plug charger 110 VAC supply alterna tive Ivc using ill effects momentarily connect charger pack polarity reversed High rate usually comes plug charger correctly after treatment 3 This great last charger As examplc last Saturday spent morning yard helicopter came lunch plugged system C-50/4 lunch over ready continue flying half-hour charger puts back about charge 4 The trickle charger great too leave helicopter connected time its always fully charged ready go 5 If charger seems noisy tighten screws bend side-plates little Its quiet everything tight 6 Heres Gerry Jarvis Always dis connect charger before turning RC system might unlucky enough have switch makes up system before releases charger case high voltage charger might damage system 7 How about dont need ESV tell its right go flying High rate LED out youre ready Well George what really think charger obsoletes charger own complaint wasnt set up charge 9-cell Cox/Sanwa transmitters Gerry sold us adjusted satisfy needs stamped 5 its chest added catalog Model IV time next year expect see dozen imitations market theyll have hustle beat price $3695 list closing Id like acknowledge postcard John Deneke Glen Rock NJ sent May 1979 John reports has fixing RC systems 12 years has storing batteries C/l00 trickle charger longer Hes found no ill effects process C-50/4 works different principle may find Johns testimony dispells some doubts about continuous storage trickle charge Thanks John Keep postmen busy thanks reading column George M Myers 70 Froehlich Farm Roaa Hicks rule NY 11801 Canopies Kragness continued page 23 internal sliding element Locate make slots center canopy tabs make matching slots fuselage deck course good idea coat transparent areas masking material both inside out Fingers bench top tools will carry ccment thinncr scratches smears will occur unless some protection first applied Now determine proper windshield height drawing set place place forward unit between guides measure its height Trim away lower edges until reaches height doing take care remains symmetrical parallel deck Now cut other two pieces nested inside other relative heights allow about 0 10 clearance top between center element sliding section necessary establish front sliding element windshield height first others pro gressively reduced height result density example almost 25% elevator deflection required same size loop airplane 7000 feet sea level effect aileron control compli cated Lower air density causes reduction torque generated deflection ailerons also causes reduction reverse torque generated rolling airplane Since two torques oppose other maximum roll rate airplane can achieve full aileron throw effect air density maximum roll rate generally found increase roll rate altitude other words fliers find airplanes need less aileron throw altitude sea level third effect altitude can real problem pattern fliers Power output engines ability propellers convert rotary motion thrust dramatically affected air density overall effect operation altitude available thrust varies approximately square density Compared sea level thrust available 7000 feet about 66% can expected sea level Since vertical performance strongly affected thrust available loss st can disastrous Sport fliers will find flying altitude may require moving up engine size compensate loss available thrust Pattern fliers generally able since competition rules limit engine size 61 cubic inches possibility should considered pattern flying altitude build 40-size airplane power 60size engine Flying airplanes higher altitudes can done requires lot care persistence us sea level fliers can think about having fly 5000 10000 feet get depressed problems great things about RC oriented newsletters AMA forwards reading humor contain An excel lent example published SIRS Sentral Illinois Radio Society newsleter co-editors Bill Bev Sellberg feature sort Dear Abby column character called Rudder Brudder issue contained following Dear Rudder Brudder out flying beautiful day last fall bit problem 112 Model Aviation SCALE RADIO CONTROL