Free Flight: Duration

Duration 0 Bob Meuser CALL FOR PAPERS Less two months has passed since tenth annual NFFS Symposium Report published already time start fretting about next National Free Flight Society soliciting papers 1978 Sympo report Papers should treat some aspect art science Indoor Outdoor Free Flight modeling technical studies practical design engineering applied models new unusual model aircraft developments historical items Please submit much material possible December 31 1977 complete paper possible failing abstract havent gotten past title submit Send Mr Robert P Dodds Box 436 Rancho Santa Fe CA 92067 Novice mark flight 809 later set Pennyplane record 925 So writing six Junior Pennyplane Novice Pennyplane rec ords three ceiling-height categories held No Non-Cents plus three other records Three additional records previ ously held No Non-Cents have since beaten another No NonCents dont know what talking about check out June 1977 issue construction article about No NonCents pithy prose about Pennyplane Novice Pennyplane events suggest No Non-Cents best Pennyplane going conventional monoplane configuration would folly probably equally good designs around design greatly influenced Dennis Jaecks highly suc cessful monoplanes would diffi cult prove small differences truly significant regards performance last analysis what fly nearly important fly event certainly good design good place start want take crack crazy indoor stuff Having now considerable experience No Non-Cents Strikes Again get ting ridiculous Nats addition winning four events never intended competitive plus achieving top score Juniors FAI Indoor Stick event No Non-Cents established Category II Junior Pennyplane record time over 10 mm hands Marnie Meuser distant relative And.. First Annual Category Indoor Record Trials Box Social Oak land Cloud Dusters held August 27-28 Sunnyvale Califflve records fell No Non-Cents Marnie put up flights 417534 finally 653 using Novice version design bettered existing Junior Novice Pennyplane Pennyplane records final flight topped Senior Open Novice marks well switching larger prop upped Junior Pennyplane mark 713 finally 738 qualifies Paper Stick record well Earlier proceedings Bill Vander beek using rather successful albeit 30% overweight model doubtful lineage No Non-Cents upped Open Novice mark 6 mm 50 sec simply would have Junior record exceed Open mark So order restore natural order things Marnies grandpop topped Vanderbeeks seem recall primitive ways blow bubbles space-age improvement called Bubble Machine John Oldenkamp improved Super Bubble Factory~ thermal detection aidbe first block John took photograph January 1978 35 variations original design have reached some tentative conclusions Pennyplane unbraced solid stick boom suitable provided use lightest wood available keep cross-section dimensions large Tubular sticks tailbooms external bracing simply arent worth trouble solid stick comes out too limp strands silk fiberglass thread glued along top will stiffen enormously adding little weight legal Novice Pennyplane 7-in chord appears offer no performance advantage over 6-in chord although 6-in chord seems have potential advantage over 5-in chord required Novice rules Use plenty side-thrust keep model tight circle dont use down-thrust upthrust easier good covering job condenser paper Micro Lite wide variations temperature humidity will have no detrimental effect provided condenser paper pre shrunk make frames in-sq balsa cover condenser paper water-shrink cut out condenser paper apply model using condenser-paper cement 50% CG position works fine chords up 6 7-in chord however stability marginal adjust ments tricky event moving wing back putting ballast nose cures problem showed drawings NASAs winglets mentioned inventor Dr Richard Whitcomb fellow worked out area rule led waspwaist fuselages used some supersonic aircraft Whitcomb received Collier trophy trouble Well did know Whitcomb former modeler model-shop propri etor Whitcomb Model Airplane Supply Company Worcester Mass Dick Whitcomb started shop 1935 ran until 1939 sold Randy Wilson Randy ran until 1947 closed doors Wilson still active modeler Front End early days aeromodel ing virtually models except scale mod els employed simple stick fuse lage mid-thirties larger outdoor stick models flown competi tion simple stick gave way built-up fuselage enclosing rubber motor distinction between stick cabin fuselage models no longer depended method construction rather depended fat fuselage True stick models seldom seen competi tion nowadays although won US Free Flight Champs Unlimited Rubber event few years back took fourth-place trophy Juniors Nats sport flying intermediate step between Delta Dart sophisti cated competition models stick model holds its own availability plastic props elimi nates prop-carving hassle free wheeling clutches thrust bearings often leave bit desired sketches show alternative having features some might find useful thrust bearing double controls thrust-line direction prevents prop wobble rubber knots around hook prop its shaft removable unit rubber tensioner provided rubber motors long twice hookto-hook spacing may used no-non sense positive-action free-wheeling device included both side-thrust downthrust angles can adjusted thrust bearing made alumi num sheet about 030 thick about wide rubber strip two-strand motor used split rear hole made first drilling hole strip cutting through center hole tin snips spreading two sides apart finally cleaning up halves hole tweaking twist drill held twixt thumb forefinger hairpin-type spring made 015 music wire using needle-nose pliers Three four full turns about right number turns length straight parts wire size can juggled until end hook propshaft en gages back thrust bearing just before rubber goes completely slack Fine adjustments can made bending 36 Model Aviation Part Scale Staffel club won trophies last Nats Ito R Bill Pardoe Bob Peck Ken Hannan Scott Oliveira front Bill Noonan Jack Lueken Bill Hannan Clarence Mathar Winglets revisited April 1977 issue Airspeed AS-4 Ferry Bill Warner topped Gas US FF Championships Three Astro Flight 010 electric motors turned 5-1/2/3 props 6500 rpm Full interior except toilet shock oleo struts charging receptacle under dummy gas tank top wing Sandwichsliced wing ribsover 1000 pieces Span 36 in. weight 13 ounces ready fly Emile Gouverne shows off still-air Wakefield Long wire blade arms typically French wing mount tricky Ron Moulton photo straight parts spring small washer must soldered propshaft just behind prop Make washer sheet brass tin-can metal forcing sharp object through until just fits propshaft tin-snipping outside rough circle Clean propshaft fine emery paper apply bit Nokorode soldering paste liquid soldering flux solder washer place Stay-Brite solder provides stronger joint regular lead-tin solder little difficult work free-wheeling device made piece wire same diameter propshaft bit loosely-fitting brass aluminum tubing Make up unit bind prop thread apply cement type used plastic models Metal Teflon washers sand wiched between ends hairpin spring adjacent parts Teflon wash ers available various suppliers mentioned previously column can make slicing off bit insulation teflon-insulated elec trical wire Send stamped selfaddressed envelope Ill send lifetime supply Down-thrust side-thrust angles adjusted simply bending snakeshaped part thrust bearing appro priately best remove propshaft first use two pairs needle-nose pliers avoid stressing glue joint hold ing thrust bearing motorstick motorstick itself According John Oldenkamp addition free-wheeler such described legal P-30 event prop itself modified no fold ers fellers Al L Section throuqlt free- wheeling device Bottom view showing twop shaft insertion RUL3I3CP POWEh STICK 440L1LYL EAOMT 7VD Plastic prop free-wheeling clutches thrust bearings pain double thrust bearing controls thrust line prevents wobbling due hook knots provides moans tensioning rubber making thrust-line adjustments Its positive free wheeler See text Scale Staffel probably pronounces like shcale shtoffel Whatevers right Anyhow its bunch fellers enjoy flying scale models real airplanes models imaginary Maybe should refer full-size aircraft some borders grown men play ing dolls rather scoff it enjoyable re January1978 37 Continued page 92 Launching No Non-Cents Marny Meuserit figures shes Bobs granddaughter also crackerjack flier setting sorts records Bobs design published June 77 issue 3-book boxed set covers fastest racing mschines 3 4 5-view scale drawings color schemes markings construc tion performance dats pilots race results descriptive illustrated story 22 Unlimiteds 41 Formula ls 19 Sport Biplanes 8 AT6/SNJs current era plua over 90 great Thomp son Bendix Greve Goodyear racers 30s 40s Iua fabulous Schneider Cup floatp lanes 20s Pulitzer Racers Gordon Benne Racers lamous European racers way back first air race win ner 1909 Curtiss Golden Flyer- jtl A95 234 planes all t Quality printed 192 big 8 x 11 pages truly fine reference POSTAGE rur aviation library Order yours INCLUDED o Early Air Racera 3-vlewa 1909-29 . 495 O National Air Racers 3-views 29-49 0 Modem Air Racers 3-views 4975 495 Send Check Money Order PUBLICATIONS P0 05 2T24 VIP IOCOFITEE NEW VORS 14828 RETURN MAIL DELIVERY Name Street City StateZip back fixture weight pin After its dry remove fuselage fixture install spacer SP firewall FW Recheck down-thrust left-thrust angles use 5-minute epoxy job drying cut out keys stab mount wing platform parts install keys use straightedge laid against pylon rudder reference tilt stab mount 1 / l6 right turn Use 5-minute epoxy keys install wing platform keep square straight Sand out airplane prior installing keys stab mount skid wires etc entire ship now ready final sanding Silk firewall cover Japanese tissue Water shrink brush three four coats 50/50 nitrate dope fuel-proof put coat clear epoxy fuselage wing stab use airbrush spray two coats butyrate dope over nitrate ever may wish use clear epoxy whole plane plan use tissue trim numbers etc cut out put after first coat nitrate Timer Modifications found pinch-off timer new camera type moves quite slowly modify remov ing five six teeth main timer gear will snap off about h off fuel line gear teeth can removed Dremel tool 1 / 16-diameter cutter small pattern file will also work probably little safer also put piece plastic fuel line bumper pinch-off arm pre vent cutting fuel line check quite often also use piece material cut Dr Scholls foot pad behind timer face insulate timer en gine vibration idea courtesy Sal Taibi Testing Before flying check airplane care fully Again no warps please want 2 down-thrust 2 left-thrust 20 incidence wing 0 stab 3/64-in right stab tiltthats right side up looking rearl/16-in washout trailing edge both wing tips means 70%CG Pick calm morning hand-glide plane everything specified will have long flat right glide within paper shim two Before make first power flight double check timer proper shutoff time put fuse dont overlap rubberband much pinch fire out Always check stab key see its down dont youll likely picking model back side Enough said test flew model built ar ticle after aged about three months like take long thing called work keeps getting way toys test went follows First flight prop forwards engine running full 4 seconds launched about 750 angle slightly right wind did half turn rolled out showed slightly tight right turn glide Sec ond flight 7 seconds full powerno Half Retracts Ten years ago Half-A fullhouse model retracts wasnt gleam mad mans eye tiny retracts thanks Robart accessory think-tank folks Offered tricycle retracts $2295 mains $1695 Price too break through Use standard retract servo Unit size about 1-5/8 x 7/8 Molded plastic low weight Robard 203 E Illinois Ave St Charles IL 60174 product review product review product review change just went higher Third flight 10 seconds full power removed about 1/64 built-in right turn model did about full turn nice transi tion didnt have use rudder tab model have use some oth er models especially doing VTO use little left-thrust little right tab model goes straight up falling off right wing As speed builds up tab takes effect model rolls right After three initial test flights completed 900 am decided run series flights since day Lake Elsinore looked like going good motor runs 9 10 sec onds using Cox 049 6D-3P Cox grey prop 40-40 Fox fuel motor tacs about 18500 rpm able make flights because very little drift through day After day testing just knew ready Thermal Thumbers Mini FAI Contest Lake Elsinore March 6 1977 contest flown five rounds 10-second engine runs 3-minute maxes end five rounds maxed out went two-man flyoff guess what Old RG short-fused himself thing wrong mod eljust pilot error Try Simplex think youll like FF Duration/Meuser continued page 37 warding way spend ones life bur geoning Peanut Scale Walnut Scale movements have feet sturdy stuff akin sand Scale Staffel bunch also enjoys col lecting trophies collected 25 Nats isnt uncommon Scale group identify itself staffel escadrille go whole trip will start calling other Captain What sis Lieutenant So-n-so theyll dress up World War Uno costumes etc sort hope no whatever will ball Present membership includes Peck Pardoe Mather assortment Hannans Noonan two bunch others live near San Diego per haps theyll let play too bring own ball Write Bob Peck Box 2498 La Mesa CA 92041 Bubble Machine Super Bubble Fac tory has become accepted useful convenient thermal detec tion aids good John Olden kamp found way improve thin edges plastic handle tend make uncomfortable hold adult extended periods time John epoxied some 3A-in soft balsa sheet handle carved sanded finger-fitting contour Adding reservoir capacity extended thermal hunting simply matter 92 Model Aviation Charles Mendenhall product review product review product review adding plastic candy box front unit John allows might handier side Cut hole bubble factory epoxy short piece brass tubing Cut match ing hole plastic box epoxy box place Finally cut filling hole top candy box discarded plastic kitchen soap con tainerthe kind spoutis ideal filling unit John uses bubblemaking liquid sold toy shops P-30 Kit Blue Ridge Models appears sticking its corporate neck out intro ducing rather classy correspondingly expensive kit designed specifically event doesnt have official AMA status perhaps reasonable gam ble inasmuch P-30 event seems taking hold event has appeared US Free Flight Championships AMA Nats subject mail-in contest sponsored Model Airplane News appears turning people has some confusion about rules especially regards prop mistakenly stated column earli er elsewhere plastic prop 9-in diameter less legal Thats wrong prop must 9 period 9-inchers market identical ones peddled Peck Polymers Vintage Aero rather heavy prop leads relatively heavy models using standard outdoor type construction smaller much lighter North Pacific type props lend themselves much lighter stick models can put up terrific flight times still air isnt what event originators San Diego Orbi teers mind prop must un modified except addition weight blade bring prop balance enlargement prop-shaft hole accept larger wire Additional rules no dimension may exceed 30 thc rubber weight may exceed 10 grams balsa kit carefully selected weight grain parts accurately cut Fuselage sides light quarter-sawn wood accurately cut out line accurately notched accept 1/16 X 1/8 cross members furnished cut lengthall 40 ribs die-crunched machine-sanded shape light quarter-sawn material absolutely identical Besides grooves actually fit spars What will modern technology bring us next sorts hardware included including snuffer tube chunk Blue Ridges small-diameter DT fuse Instructions building flying model fill four single-spaced full-size pages Plans crystal clear An ample quantity real Japanese tissue supplied proportions typical competi tion free-flight models no reason shouldnt fly extremely well Construction unusually simple such model could well serve young sters second third model adults first price $800 postpaid seems like lot really isnt considering quality work already done kit sold direct mail Blue Ridge Models PO Box 9188 Asheville NC 28805 Blue Ridge has lots other goodies such snazzy Graupner prop spinners used Wakefield models send its price list Rocket Plans Full-size plans Richard Woods Nats-winning Jet Tube avail able NFFS mere buck post paid Send NFFS Plans Publica tions 20267 Northbrook Square Cuper tino CA 95014 Ask complete plans list three-view rather successful model presented column October 1976 issue Bob Meuser 4200 Gregory St Oak land CA 94619 FF Old-Timer/Haught continued page 38 like win eventually gravitate known performers about little help out Send rules change proposal Gene Wallock Free Flight Rules Coordi nator 220 Le Roy Avenue Arcadia CA 91006 January 1978 93 Please send _________ copies new third edition Radio Control Buyers Guide Enclosed $500 copy ordered $425 Guide plus $75 postage handling

Duration 0 Bob Meuser CALL FOR PAPERS Less two months has passed since tenth annual NFFS Symposium Report published already time start fretting about next National Free Flight Society soliciting papers 1978 Sympo report Papers should treat some aspect art science Indoor Outdoor Free Flight modeling technical studies practical design engineering applied models new unusual model aircraft developments historical items Please submit much material possible December 31 1977 complete paper possible failing abstract havent gotten past title submit Send Mr Robert P Dodds Box 436 Rancho Santa Fe CA 92067 Novice mark flight 809 later set Pennyplane record 925 So writing six Junior Pennyplane Novice Pennyplane rec ords three ceiling-height categories held No Non-Cents plus three other records Three additional records previ ously held No Non-Cents have since beaten another No NonCents dont know what talking about check out June 1977 issue construction article about No NonCents pithy prose about Pennyplane Novice Pennyplane events suggest No Non-Cents best Pennyplane going conventional monoplane configuration would folly probably equally good designs around design greatly influenced Dennis Jaecks highly suc cessful monoplanes would diffi cult prove small differences truly significant regards performance last analysis what fly nearly important fly event certainly good design good place start want take crack crazy indoor stuff Having now considerable experience No Non-Cents Strikes Again get ting ridiculous Nats addition winning four events never intended competitive plus achieving top score Juniors FAI Indoor Stick event No Non-Cents established Category II Junior Pennyplane record time over 10 mm hands Marnie Meuser distant relative And.. First Annual Category Indoor Record Trials Box Social Oak land Cloud Dusters held August 27-28 Sunnyvale Califflve records fell No Non-Cents Marnie put up flights 417534 finally 653 using Novice version design bettered existing Junior Novice Pennyplane Pennyplane records final flight topped Senior Open Novice marks well switching larger prop upped Junior Pennyplane mark 713 finally 738 qualifies Paper Stick record well Earlier proceedings Bill Vander beek using rather successful albeit 30% overweight model doubtful lineage No Non-Cents upped Open Novice mark 6 mm 50 sec simply would have Junior record exceed Open mark So order restore natural order things Marnies grandpop topped Vanderbeeks seem recall primitive ways blow bubbles space-age improvement called Bubble Machine John Oldenkamp improved Super Bubble Factory~ thermal detection aidbe first block John took photograph January 1978 35 variations original design have reached some tentative conclusions Pennyplane unbraced solid stick boom suitable provided use lightest wood available keep cross-section dimensions large Tubular sticks tailbooms external bracing simply arent worth trouble solid stick comes out too limp strands silk fiberglass thread glued along top will stiffen enormously adding little weight legal Novice Pennyplane 7-in chord appears offer no performance advantage over 6-in chord although 6-in chord seems have potential advantage over 5-in chord required Novice rules Use plenty side-thrust keep model tight circle dont use down-thrust upthrust easier good covering job condenser paper Micro Lite wide variations temperature humidity will have no detrimental effect provided condenser paper pre shrunk make frames in-sq balsa cover condenser paper water-shrink cut out condenser paper apply model using condenser-paper cement 50% CG position works fine chords up 6 7-in chord however stability marginal adjust ments tricky event moving wing back putting ballast nose cures problem showed drawings NASAs winglets mentioned inventor Dr Richard Whitcomb fellow worked out area rule led waspwaist fuselages used some supersonic aircraft Whitcomb received Collier trophy trouble Well did know Whitcomb former modeler model-shop propri etor Whitcomb Model Airplane Supply Company Worcester Mass Dick Whitcomb started shop 1935 ran until 1939 sold Randy Wilson Randy ran until 1947 closed doors Wilson still active modeler Front End early days aeromodel ing virtually models except scale mod els employed simple stick fuse lage mid-thirties larger outdoor stick models flown competi tion simple stick gave way built-up fuselage enclosing rubber motor distinction between stick cabin fuselage models no longer depended method construction rather depended fat fuselage True stick models seldom seen competi tion nowadays although won US Free Flight Champs Unlimited Rubber event few years back took fourth-place trophy Juniors Nats sport flying intermediate step between Delta Dart sophisti cated competition models stick model holds its own availability plastic props elimi nates prop-carving hassle free wheeling clutches thrust bearings often leave bit desired sketches show alternative having features some might find useful thrust bearing double controls thrust-line direction prevents prop wobble rubber knots around hook prop its shaft removable unit rubber tensioner provided rubber motors long twice hookto-hook spacing may used no-non sense positive-action free-wheeling device included both side-thrust downthrust angles can adjusted thrust bearing made alumi num sheet about 030 thick about wide rubber strip two-strand motor used split rear hole made first drilling hole strip cutting through center hole tin snips spreading two sides apart finally cleaning up halves hole tweaking twist drill held twixt thumb forefinger hairpin-type spring made 015 music wire using needle-nose pliers Three four full turns about right number turns length straight parts wire size can juggled until end hook propshaft en gages back thrust bearing just before rubber goes completely slack Fine adjustments can made bending 36 Model Aviation Part Scale Staffel club won trophies last Nats Ito R Bill Pardoe Bob Peck Ken Hannan Scott Oliveira front Bill Noonan Jack Lueken Bill Hannan Clarence Mathar Winglets revisited April 1977 issue Airspeed AS-4 Ferry Bill Warner topped Gas US FF Championships Three Astro Flight 010 electric motors turned 5-1/2/3 props 6500 rpm Full interior except toilet shock oleo struts charging receptacle under dummy gas tank top wing Sandwichsliced wing ribsover 1000 pieces Span 36 in. weight 13 ounces ready fly Emile Gouverne shows off still-air Wakefield Long wire blade arms typically French wing mount tricky Ron Moulton photo straight parts spring small washer must soldered propshaft just behind prop Make washer sheet brass tin-can metal forcing sharp object through until just fits propshaft tin-snipping outside rough circle Clean propshaft fine emery paper apply bit Nokorode soldering paste liquid soldering flux solder washer place Stay-Brite solder provides stronger joint regular lead-tin solder little difficult work free-wheeling device made piece wire same diameter propshaft bit loosely-fitting brass aluminum tubing Make up unit bind prop thread apply cement type used plastic models Metal Teflon washers sand wiched between ends hairpin spring adjacent parts Teflon wash ers available various suppliers mentioned previously column can make slicing off bit insulation teflon-insulated elec trical wire Send stamped selfaddressed envelope Ill send lifetime supply Down-thrust side-thrust angles adjusted simply bending snakeshaped part thrust bearing appro priately best remove propshaft first use two pairs needle-nose pliers avoid stressing glue joint hold ing thrust bearing motorstick motorstick itself According John Oldenkamp addition free-wheeler such described legal P-30 event prop itself modified no fold ers fellers Al L Section throuqlt free- wheeling device Bottom view showing twop shaft insertion RUL3I3CP POWEh STICK 440L1LYL EAOMT 7VD Plastic prop free-wheeling clutches thrust bearings pain double thrust bearing controls thrust line prevents wobbling due hook knots provides moans tensioning rubber making thrust-line adjustments Its positive free wheeler See text Scale Staffel probably pronounces like shcale shtoffel Whatevers right Anyhow its bunch fellers enjoy flying scale models real airplanes models imaginary Maybe should refer full-size aircraft some borders grown men play ing dolls rather scoff it enjoyable re January1978 37 Continued page 92 Launching No Non-Cents Marny Meuserit figures shes Bobs granddaughter also crackerjack flier setting sorts records Bobs design published June 77 issue 3-book boxed set covers fastest racing mschines 3 4 5-view scale drawings color schemes markings construc tion performance dats pilots race results descriptive illustrated story 22 Unlimiteds 41 Formula ls 19 Sport Biplanes 8 AT6/SNJs current era plua over 90 great Thomp son Bendix Greve Goodyear racers 30s 40s Iua fabulous Schneider Cup floatp lanes 20s Pulitzer Racers Gordon Benne Racers lamous European racers way back first air race win ner 1909 Curtiss Golden Flyer- jtl A95 234 planes all t Quality printed 192 big 8 x 11 pages truly fine reference POSTAGE rur aviation library Order yours INCLUDED o Early Air Racera 3-vlewa 1909-29 . 495 O National Air Racers 3-views 29-49 0 Modem Air Racers 3-views 4975 495 Send Check Money Order PUBLICATIONS P0 05 2T24 VIP IOCOFITEE NEW VORS 14828 RETURN MAIL DELIVERY Name Street City StateZip back fixture weight pin After its dry remove fuselage fixture install spacer SP firewall FW Recheck down-thrust left-thrust angles use 5-minute epoxy job drying cut out keys stab mount wing platform parts install keys use straightedge laid against pylon rudder reference tilt stab mount 1 / l6 right turn Use 5-minute epoxy keys install wing platform keep square straight Sand out airplane prior installing keys stab mount skid wires etc entire ship now ready final sanding Silk firewall cover Japanese tissue Water shrink brush three four coats 50/50 nitrate dope fuel-proof put coat clear epoxy fuselage wing stab use airbrush spray two coats butyrate dope over nitrate ever may wish use clear epoxy whole plane plan use tissue trim numbers etc cut out put after first coat nitrate Timer Modifications found pinch-off timer new camera type moves quite slowly modify remov ing five six teeth main timer gear will snap off about h off fuel line gear teeth can removed Dremel tool 1 / 16-diameter cutter small pattern file will also work probably little safer also put piece plastic fuel line bumper pinch-off arm pre vent cutting fuel line check quite often also use piece material cut Dr Scholls foot pad behind timer face insulate timer en gine vibration idea courtesy Sal Taibi Testing Before flying check airplane care fully Again no warps please want 2 down-thrust 2 left-thrust 20 incidence wing 0 stab 3/64-in right stab tiltthats right side up looking rearl/16-in washout trailing edge both wing tips means 70%CG Pick calm morning hand-glide plane everything specified will have long flat right glide within paper shim two Before make first power flight double check timer proper shutoff time put fuse dont overlap rubberband much pinch fire out Always check stab key see its down dont youll likely picking model back side Enough said test flew model built ar ticle after aged about three months like take long thing called work keeps getting way toys test went follows First flight prop forwards engine running full 4 seconds launched about 750 angle slightly right wind did half turn rolled out showed slightly tight right turn glide Sec ond flight 7 seconds full powerno Half Retracts Ten years ago Half-A fullhouse model retracts wasnt gleam mad mans eye tiny retracts thanks Robart accessory think-tank folks Offered tricycle retracts $2295 mains $1695 Price too break through Use standard retract servo Unit size about 1-5/8 x 7/8 Molded plastic low weight Robard 203 E Illinois Ave St Charles IL 60174 product review product review product review change just went higher Third flight 10 seconds full power removed about 1/64 built-in right turn model did about full turn nice transi tion didnt have use rudder tab model have use some oth er models especially doing VTO use little left-thrust little right tab model goes straight up falling off right wing As speed builds up tab takes effect model rolls right After three initial test flights completed 900 am decided run series flights since day Lake Elsinore looked like going good motor runs 9 10 sec onds using Cox 049 6D-3P Cox grey prop 40-40 Fox fuel motor tacs about 18500 rpm able make flights because very little drift through day After day testing just knew ready Thermal Thumbers Mini FAI Contest Lake Elsinore March 6 1977 contest flown five rounds 10-second engine runs 3-minute maxes end five rounds maxed out went two-man flyoff guess what Old RG short-fused himself thing wrong mod eljust pilot error Try Simplex think youll like FF Duration/Meuser continued page 37 warding way spend ones life bur geoning Peanut Scale Walnut Scale movements have feet sturdy stuff akin sand Scale Staffel bunch also enjoys col lecting trophies collected 25 Nats isnt uncommon Scale group identify itself staffel escadrille go whole trip will start calling other Captain What sis Lieutenant So-n-so theyll dress up World War Uno costumes etc sort hope no whatever will ball Present membership includes Peck Pardoe Mather assortment Hannans Noonan two bunch others live near San Diego per haps theyll let play too bring own ball Write Bob Peck Box 2498 La Mesa CA 92041 Bubble Machine Super Bubble Fac tory has become accepted useful convenient thermal detec tion aids good John Olden kamp found way improve thin edges plastic handle tend make uncomfortable hold adult extended periods time John epoxied some 3A-in soft balsa sheet handle carved sanded finger-fitting contour Adding reservoir capacity extended thermal hunting simply matter 92 Model Aviation Charles Mendenhall product review product review product review adding plastic candy box front unit John allows might handier side Cut hole bubble factory epoxy short piece brass tubing Cut match ing hole plastic box epoxy box place Finally cut filling hole top candy box discarded plastic kitchen soap con tainerthe kind spoutis ideal filling unit John uses bubblemaking liquid sold toy shops P-30 Kit Blue Ridge Models appears sticking its corporate neck out intro ducing rather classy correspondingly expensive kit designed specifically event doesnt have official AMA status perhaps reasonable gam ble inasmuch P-30 event seems taking hold event has appeared US Free Flight Championships AMA Nats subject mail-in contest sponsored Model Airplane News appears turning people has some confusion about rules especially regards prop mistakenly stated column earli er elsewhere plastic prop 9-in diameter less legal Thats wrong prop must 9 period 9-inchers market identical ones peddled Peck Polymers Vintage Aero rather heavy prop leads relatively heavy models using standard outdoor type construction smaller much lighter North Pacific type props lend themselves much lighter stick models can put up terrific flight times still air isnt what event originators San Diego Orbi teers mind prop must un modified except addition weight blade bring prop balance enlargement prop-shaft hole accept larger wire Additional rules no dimension may exceed 30 thc rubber weight may exceed 10 grams balsa kit carefully selected weight grain parts accurately cut Fuselage sides light quarter-sawn wood accurately cut out line accurately notched accept 1/16 X 1/8 cross members furnished cut lengthall 40 ribs die-crunched machine-sanded shape light quarter-sawn material absolutely identical Besides grooves actually fit spars What will modern technology bring us next sorts hardware included including snuffer tube chunk Blue Ridges small-diameter DT fuse Instructions building flying model fill four single-spaced full-size pages Plans crystal clear An ample quantity real Japanese tissue supplied proportions typical competi tion free-flight models no reason shouldnt fly extremely well Construction unusually simple such model could well serve young sters second third model adults first price $800 postpaid seems like lot really isnt considering quality work already done kit sold direct mail Blue Ridge Models PO Box 9188 Asheville NC 28805 Blue Ridge has lots other goodies such snazzy Graupner prop spinners used Wakefield models send its price list Rocket Plans Full-size plans Richard Woods Nats-winning Jet Tube avail able NFFS mere buck post paid Send NFFS Plans Publica tions 20267 Northbrook Square Cuper tino CA 95014 Ask complete plans list three-view rather successful model presented column October 1976 issue Bob Meuser 4200 Gregory St Oak land CA 94619 FF Old-Timer/Haught continued page 38 like win eventually gravitate known performers about little help out Send rules change proposal Gene Wallock Free Flight Rules Coordi nator 220 Le Roy Avenue Arcadia CA 91006 January 1978 93 Please send _________ copies new third edition Radio Control Buyers Guide Enclosed $500 copy ordered $425 Guide plus $75 postage handling