FORPLEEE Fantastic gadget saw last iiight far out ture flip prop scale job big engine bursts life does roar like model engine Instead hear popping sound say five-cylinder Kinner called Ex haust Sound Distributor glance looks much like prop-drive set-up gearing operates timed valve ar rangement cylindrical muffler projects five evidentlythis might varied short exhaust stacks arranged radially Flip hold dead distinctive pops come out ap propriate stacks runs isnt loud sounds like real en gine model noise level 4-cycle engine harsh no bite hear thing idle lose mind lack now scale fumes guy marvelous gadget John Hunton placea club meet ing Northern Virginia RC Club result gypsy flying sessions club field Southern hospitality just beautiful John also show-andtell Stinson Gull Wing Reliant customizing Sterling kit match full-scale Reliant variant restoring See Jan 79 issue Johns whip-control Eagle fighter also guy 14-scale Quickie smaller Falcon 56 Asked could customize exhaust sound distributor give us great Merlin drone said anything possible Next month well show some pic tures should mention too Johns 14-year-old son Clay show-andtell item Ken Willards Blue Birds Ac tually lead plane finished young fellow should reach moment truth sometime summer 0 LI3 NVRC group rare guy building RC blimp anoth er has two camera planes has made air-to-air color shots 1/4-scale jobs magnificent aerial views places like Dulles Kings Dominion Disney-like amusement park MA will run feature show-and-tell stuff has got us ga-ga 1978 show-and-tell year rollicking sessions band mountain elvesthe rubber scale guys great revival meeting Flying Aces Scale Model Nats Johnsville PA surpas sing pleasures own sport RC jobs weve mentioned before first May evening rol ling hills well out Maryland beau tiful little flying field gay colored hot air balloon risen unexpectedly nearby pasture slowly drifting sunset shades ing crept across grass strange shape bright light its nose ar rowed overheadthe Concorde During summer occasional visitors heard say must field talked about Model Aviation no great Air Base prairie vista can chase miles Shangri La wont tell youll happy know somewhere modeling Shangri La modeler 51 years saw great lightat first watching remarkable rubber scale things perceiving own RC crates same vantage point special ethereal quality way models fly well term quality flight sharpened sense obvious fact plane big little has its individ ual performance envelope work within envelope find key things never noted fore Does groove smoothly aesthetic old-time scaled down RC suddenly related conventional RC sist jobs Mr Mulligan compares Cub Fly like Mr Mulligan like Cub ham-handed real Mr Mulligan wed suppose would dead pilot Whereas Cub might hang several feet off runway scratched head trying decide whether give gun go round hold stick way back bounce ingloriously along runway like jackrabbit Cub forgives knock Mr Mulligan Un derstand ship fly dont make panacea problems model pilotage enjoy sense fly ing opposed merely flying ship looking another interesting envelope came six-foot light weight Veco 19a ship feel air currents ride thermals search lift come afar like sailing ship across Western Ocean now 6-foot Sniffer hung up completed two hours ago Once would have merely big Sniffer Now perform ance envelope What did want ship What special twist followed solid RC structural practicethough sturdy wing openaccepted bit weight penalty beefed up better sport model would handle better glide bit faster still have formid able soaring ability ability pene trate nice course just build model inspired make see pretty jobs field some performance catches eye illuminating think terms performance envelope Design ers take care absolutely everything penultimate compromise ship run-of-the-mill appeal Martini sips mix ture likes So put next design paper give tweak learned about funflying Anything isnt pattern job pipe retracts left-turning bul let pylon job Sport Scale usually designated fun flying Now consider Joe Carter popped up night ShangriLa bearing huge arm ful strange aircraft mysterious wings booms unidentified ob jects protruding directions First flew odd canard Out front long boom fuselage Ace magnet ic actuator balance all-wood crate no dihedral wing airfoil diamond base seemed inch bigthat tailing edge Continued page 72 4 Model Aviation Openers/Winter continued page 4 contraption seemed airworthy stupified expert bystander handed Joe two Ace transmittersone some other frequency twin pusher 1910 era precise ly duplicated way props butchered can say good flying models 1910apparently Followed RC sist Englands first gassies strange high wing funny planform great sweeping curves strange angular rigging tore up sky asked Joe might Capt Bowdens ancients eyes lit up Bowden advised us British equivalent Charlie Grant older guys know what means Bowden named odd crates things suggestive mice insectsand gosh configurations looked part Joe wound up Wakefield-type rubber job proceeded steer around field RC final ly has nifties home final ly isnt good wordand said should know friend really builds far out stuff great quanti ties long stick like yard stick about six feet long end Half About two thirds length stick other di rection small metal tab FO didnt have foggiest Joe started engine grasped small projecting pivotso small didnt see itlocated under stick about third its length away engine stick began revolve faster faster swishing Dopler effect incredi- ble sound flew off hand helicopter As climbed like Grim Reapers scythe drifted toward lone tree terror local flier proving thereby models alike As gawked someone said Joe flew thing out hamburger joint parking lot night lights yet spectacle caused traffic jam believe FO thinks does must something about April issues people considered April issue 12 months ago best ever seen sure magazines dont have souls own biorythms magic April 1979 issue Watching shape up weeks know block buster editor like win ning door prize first clue something special about happen came art editor said cover lines Attempting se lect just two impossible model between covers clam ored attention designers equal landto say least respected peers big Fairchild Clapps surely will live plans marvel flight stirs heart spite its seeming complexity looks buildable unreasonable effort Bill Henns rubber scale Chambermaid epitome art structural gem truly phenomenal performer As Nats winner category told us awe Chambermaid flies forever Control-line people especially hot-shot Carrier fliers will respect Hazens MO-l Sport RCers may stunned unorthodox configuration Bill Evan s X-wing Astron description first test flight before crowd cur ious witnesses gleefully waiting him put line reminds us comedian Fred Allens quip laughed stood up canoe didnt know too cheap tip last laugh Bills Its aerobatic screamer think Bill has worthy encore Simitar queer bird stands month month out top plans list What does man have against stabilizers Consider columnists inspire other new heights RC Scale Wischers tops Soaring Dan Pruss has become respected correspon dent international awareness last month actually interviewed Wer ner Sitar Europe Did Austrians really fly 242 mph FO thinks sohand us bullet-proof vest No matter what specialty col umnists VanPutte Meuser Myers etc Continued page 98 72 Model Aviation Hall Famer Harold DeBolt keeps up will tough act follow Wed like showyou picture him 1978 United Pylon Racing CircuitGrand Champion Trophyalso SportClass Champion placing high /4 Midget Formula took him nine years win flew Lii Quickie Form withal 0-7 prop K&B Used &fodelAviation Sportater AMA Sport Pylon HP Below Shaking hands Harold recent EXPO Show Midwests Frank Garcher left Jim Newman design/engineering department Hal noted designer himself once major manufacturer kits joining Jimbut working home luckystiff launch line kits will take modelers way through ail phases modeling tKL C Openers/Winter continued page 72 have something tell As RCer FOs chief interest CL Racing frantic aerobatics pilots center circle will find Bill Lee CL Racing talking about home-made fibreglass props Bill Wynn Paul too guy endlessly seeks truth about tanks things like props doing experimenting finding para meters Dave Chesney writes beautifully RC Helicopters column existence now Bill Warner Sport/Scale will put humor life flying circus note others gang Without guys like us would never know about hundreds things add up sum total skills Brad Powers lead article floats quarter-scale landmark article Model aviation old century yet explosion knowledge techniques products never dared dream about what know about floats would fit smallest drawer field box So designer partook dozens famous pro jects made history modeler boot telling us design float virtually size modelas well monsters weve yet see water Note feed-inIrwin Ohlsson great Ernie Stout Convair fame What suggesting dear friend April issue however excep tional 12 year talking about magazine Within another yearGod willingit will thousand light years beyond April 1976 MA began July 1975 its modern form ask conscious magazine contro versial terms some other magazines have shown theyd like see deadbut inspect closely what speak especially minority members did subscribe MA past yours wed like proud AS WE GO TO PRESS sad news ar rives passing Myron Mike Schlesinger recent past president Top Flite Models Mike respected friend industry innumerable modelers true pioneer helped start Top Flite its way chaired trade show committee 1956 became member HIAAs board directors served nearly 10 years chairman co-chairman HIAAs Model Aeronautics Division Hu morous easy going always compassion ate understanding Mike Schlesinger will truly missed us Floats Powers continued page 17 actual floats installed Citabria model together summary results some photos Irwin Ohlsson thirties deve loped line famous Ohlsson engines now retired builds beautiful model seaplanes has given pair floats developed has found very satisfactory straightforward design have generous step landing angle embody progressive deadrise Rather present float complete its displacement Center Buoyancy etc ready determined will give its dimensions trim another guesstimate draft 16 40 percent its beam data procedures already discussed up find answers problems Fig 6 shows float answers will found illustration Answers Float Prob lems Finally wish express thanks Ernest G Stout former Chief Hydrody namics Convair worked interesting projects sistance providing data presented herein Now am going start building float build finish before write let know works can de cide whether stay leave Tierra Del Fuego RC Technique/Myers continued page 19 control thats going wrong way move pushrod hole opposite side output wheel frequently make such change field someone needs disadvantage approach pushrods usually get tangled you end up product review product review product review Radial Engines man has thingultra deluxe 57-cylinder scale-like engines /4 scale 4-cycle high-torque swing 16-8 through 20-6 props Low vibra tion low fuel consumption mild glow fuel 6-in diameter 23 oz weight 7cylinder engines offered 3 versionspol ished aluminum anodized black deluxe Collectors Gold Edition package trimmed 14K gold Manufacturer states fully opera tional warranted 90 dayssold direct Executive Engines Co 16650 S 104th Ave Orland Park IL 60462 product review product review product review swapping rudder elevator servos side-by-side using Nyrod often finds surgery neces sary because outer shell has anchored location doesnt allow shift connection other side wheel Wouldnt nice could just throw reversing switch servo point Bobs eyes lit up Ill bet Ace R/C Bantam Midget machinery will fit regular Bantam case says leave enough room servo reverser dont see what can idea George kicked around some possibilities until time get back work few days later Bantam case Bantam Midget servo appeared desk magic Christmas came bit early year thought until Bob told wanted back after youve finished rever sing switch first thought make use 16pin DIP switch After little consideration possibilities left open direct short across batteries dropped idea Besides switch too big Next tried 4PDT Noble switch commonly used switch harnesses RC systems can made fit little help Dremel problem will have take out servo get switch smaller switch could mounted right out open can get couldnt find Slightly later Bob left another goodie desk prototype servo reverser ACE R/C few mods could fit space available would left servo having two pigtails rotation Plug need configuration left project returned servo Bob must careful let unused plug short out metal parts because will short out batteries kill whole system As said before like idea having servo reverser receiver todays IC circuitry major configuration change would adding second set sockets other rotation Its fair mention Kraft has shipping sets 10 years have two servos set up direction Editors NoteLike feature Cox-Sanwa get what want swapping around dot no dot servos dot tiny circle molded mounting flange between cutouts grommets Once get flight pack set up right theres no way make mistake Thats way like things Over years have bought flight packs transmitters work plane until control trims throws right transmitter trim levers center position leave everything alone until needs service way can pick plane off wall go flying worrying its compatible 98 Model Aviation
Edition: Model Aviation - 1979/04
Page Numbers: 4, 72, 98
FORPLEEE Fantastic gadget saw last iiight far out ture flip prop scale job big engine bursts life does roar like model engine Instead hear popping sound say five-cylinder Kinner called Ex haust Sound Distributor glance looks much like prop-drive set-up gearing operates timed valve ar rangement cylindrical muffler projects five evidentlythis might varied short exhaust stacks arranged radially Flip hold dead distinctive pops come out ap propriate stacks runs isnt loud sounds like real en gine model noise level 4-cycle engine harsh no bite hear thing idle lose mind lack now scale fumes guy marvelous gadget John Hunton placea club meet ing Northern Virginia RC Club result gypsy flying sessions club field Southern hospitality just beautiful John also show-andtell Stinson Gull Wing Reliant customizing Sterling kit match full-scale Reliant variant restoring See Jan 79 issue Johns whip-control Eagle fighter also guy 14-scale Quickie smaller Falcon 56 Asked could customize exhaust sound distributor give us great Merlin drone said anything possible Next month well show some pic tures should mention too Johns 14-year-old son Clay show-andtell item Ken Willards Blue Birds Ac tually lead plane finished young fellow should reach moment truth sometime summer 0 LI3 NVRC group rare guy building RC blimp anoth er has two camera planes has made air-to-air color shots 1/4-scale jobs magnificent aerial views places like Dulles Kings Dominion Disney-like amusement park MA will run feature show-and-tell stuff has got us ga-ga 1978 show-and-tell year rollicking sessions band mountain elvesthe rubber scale guys great revival meeting Flying Aces Scale Model Nats Johnsville PA surpas sing pleasures own sport RC jobs weve mentioned before first May evening rol ling hills well out Maryland beau tiful little flying field gay colored hot air balloon risen unexpectedly nearby pasture slowly drifting sunset shades ing crept across grass strange shape bright light its nose ar rowed overheadthe Concorde During summer occasional visitors heard say must field talked about Model Aviation no great Air Base prairie vista can chase miles Shangri La wont tell youll happy know somewhere modeling Shangri La modeler 51 years saw great lightat first watching remarkable rubber scale things perceiving own RC crates same vantage point special ethereal quality way models fly well term quality flight sharpened sense obvious fact plane big little has its individ ual performance envelope work within envelope find key things never noted fore Does groove smoothly aesthetic old-time scaled down RC suddenly related conventional RC sist jobs Mr Mulligan compares Cub Fly like Mr Mulligan like Cub ham-handed real Mr Mulligan wed suppose would dead pilot Whereas Cub might hang several feet off runway scratched head trying decide whether give gun go round hold stick way back bounce ingloriously along runway like jackrabbit Cub forgives knock Mr Mulligan Un derstand ship fly dont make panacea problems model pilotage enjoy sense fly ing opposed merely flying ship looking another interesting envelope came six-foot light weight Veco 19a ship feel air currents ride thermals search lift come afar like sailing ship across Western Ocean now 6-foot Sniffer hung up completed two hours ago Once would have merely big Sniffer Now perform ance envelope What did want ship What special twist followed solid RC structural practicethough sturdy wing openaccepted bit weight penalty beefed up better sport model would handle better glide bit faster still have formid able soaring ability ability pene trate nice course just build model inspired make see pretty jobs field some performance catches eye illuminating think terms performance envelope Design ers take care absolutely everything penultimate compromise ship run-of-the-mill appeal Martini sips mix ture likes So put next design paper give tweak learned about funflying Anything isnt pattern job pipe retracts left-turning bul let pylon job Sport Scale usually designated fun flying Now consider Joe Carter popped up night ShangriLa bearing huge arm ful strange aircraft mysterious wings booms unidentified ob jects protruding directions First flew odd canard Out front long boom fuselage Ace magnet ic actuator balance all-wood crate no dihedral wing airfoil diamond base seemed inch bigthat tailing edge Continued page 72 4 Model Aviation Openers/Winter continued page 4 contraption seemed airworthy stupified expert bystander handed Joe two Ace transmittersone some other frequency twin pusher 1910 era precise ly duplicated way props butchered can say good flying models 1910apparently Followed RC sist Englands first gassies strange high wing funny planform great sweeping curves strange angular rigging tore up sky asked Joe might Capt Bowdens ancients eyes lit up Bowden advised us British equivalent Charlie Grant older guys know what means Bowden named odd crates things suggestive mice insectsand gosh configurations looked part Joe wound up Wakefield-type rubber job proceeded steer around field RC final ly has nifties home final ly isnt good wordand said should know friend really builds far out stuff great quanti ties long stick like yard stick about six feet long end Half About two thirds length stick other di rection small metal tab FO didnt have foggiest Joe started engine grasped small projecting pivotso small didnt see itlocated under stick about third its length away engine stick began revolve faster faster swishing Dopler effect incredi- ble sound flew off hand helicopter As climbed like Grim Reapers scythe drifted toward lone tree terror local flier proving thereby models alike As gawked someone said Joe flew thing out hamburger joint parking lot night lights yet spectacle caused traffic jam believe FO thinks does must something about April issues people considered April issue 12 months ago best ever seen sure magazines dont have souls own biorythms magic April 1979 issue Watching shape up weeks know block buster editor like win ning door prize first clue something special about happen came art editor said cover lines Attempting se lect just two impossible model between covers clam ored attention designers equal landto say least respected peers big Fairchild Clapps surely will live plans marvel flight stirs heart spite its seeming complexity looks buildable unreasonable effort Bill Henns rubber scale Chambermaid epitome art structural gem truly phenomenal performer As Nats winner category told us awe Chambermaid flies forever Control-line people especially hot-shot Carrier fliers will respect Hazens MO-l Sport RCers may stunned unorthodox configuration Bill Evan s X-wing Astron description first test flight before crowd cur ious witnesses gleefully waiting him put line reminds us comedian Fred Allens quip laughed stood up canoe didnt know too cheap tip last laugh Bills Its aerobatic screamer think Bill has worthy encore Simitar queer bird stands month month out top plans list What does man have against stabilizers Consider columnists inspire other new heights RC Scale Wischers tops Soaring Dan Pruss has become respected correspon dent international awareness last month actually interviewed Wer ner Sitar Europe Did Austrians really fly 242 mph FO thinks sohand us bullet-proof vest No matter what specialty col umnists VanPutte Meuser Myers etc Continued page 98 72 Model Aviation Hall Famer Harold DeBolt keeps up will tough act follow Wed like showyou picture him 1978 United Pylon Racing CircuitGrand Champion Trophyalso SportClass Champion placing high /4 Midget Formula took him nine years win flew Lii Quickie Form withal 0-7 prop K&B Used &fodelAviation Sportater AMA Sport Pylon HP Below Shaking hands Harold recent EXPO Show Midwests Frank Garcher left Jim Newman design/engineering department Hal noted designer himself once major manufacturer kits joining Jimbut working home luckystiff launch line kits will take modelers way through ail phases modeling tKL C Openers/Winter continued page 72 have something tell As RCer FOs chief interest CL Racing frantic aerobatics pilots center circle will find Bill Lee CL Racing talking about home-made fibreglass props Bill Wynn Paul too guy endlessly seeks truth about tanks things like props doing experimenting finding para meters Dave Chesney writes beautifully RC Helicopters column existence now Bill Warner Sport/Scale will put humor life flying circus note others gang Without guys like us would never know about hundreds things add up sum total skills Brad Powers lead article floats quarter-scale landmark article Model aviation old century yet explosion knowledge techniques products never dared dream about what know about floats would fit smallest drawer field box So designer partook dozens famous pro jects made history modeler boot telling us design float virtually size modelas well monsters weve yet see water Note feed-inIrwin Ohlsson great Ernie Stout Convair fame What suggesting dear friend April issue however excep tional 12 year talking about magazine Within another yearGod willingit will thousand light years beyond April 1976 MA began July 1975 its modern form ask conscious magazine contro versial terms some other magazines have shown theyd like see deadbut inspect closely what speak especially minority members did subscribe MA past yours wed like proud AS WE GO TO PRESS sad news ar rives passing Myron Mike Schlesinger recent past president Top Flite Models Mike respected friend industry innumerable modelers true pioneer helped start Top Flite its way chaired trade show committee 1956 became member HIAAs board directors served nearly 10 years chairman co-chairman HIAAs Model Aeronautics Division Hu morous easy going always compassion ate understanding Mike Schlesinger will truly missed us Floats Powers continued page 17 actual floats installed Citabria model together summary results some photos Irwin Ohlsson thirties deve loped line famous Ohlsson engines now retired builds beautiful model seaplanes has given pair floats developed has found very satisfactory straightforward design have generous step landing angle embody progressive deadrise Rather present float complete its displacement Center Buoyancy etc ready determined will give its dimensions trim another guesstimate draft 16 40 percent its beam data procedures already discussed up find answers problems Fig 6 shows float answers will found illustration Answers Float Prob lems Finally wish express thanks Ernest G Stout former Chief Hydrody namics Convair worked interesting projects sistance providing data presented herein Now am going start building float build finish before write let know works can de cide whether stay leave Tierra Del Fuego RC Technique/Myers continued page 19 control thats going wrong way move pushrod hole opposite side output wheel frequently make such change field someone needs disadvantage approach pushrods usually get tangled you end up product review product review product review Radial Engines man has thingultra deluxe 57-cylinder scale-like engines /4 scale 4-cycle high-torque swing 16-8 through 20-6 props Low vibra tion low fuel consumption mild glow fuel 6-in diameter 23 oz weight 7cylinder engines offered 3 versionspol ished aluminum anodized black deluxe Collectors Gold Edition package trimmed 14K gold Manufacturer states fully opera tional warranted 90 dayssold direct Executive Engines Co 16650 S 104th Ave Orland Park IL 60462 product review product review product review swapping rudder elevator servos side-by-side using Nyrod often finds surgery neces sary because outer shell has anchored location doesnt allow shift connection other side wheel Wouldnt nice could just throw reversing switch servo point Bobs eyes lit up Ill bet Ace R/C Bantam Midget machinery will fit regular Bantam case says leave enough room servo reverser dont see what can idea George kicked around some possibilities until time get back work few days later Bantam case Bantam Midget servo appeared desk magic Christmas came bit early year thought until Bob told wanted back after youve finished rever sing switch first thought make use 16pin DIP switch After little consideration possibilities left open direct short across batteries dropped idea Besides switch too big Next tried 4PDT Noble switch commonly used switch harnesses RC systems can made fit little help Dremel problem will have take out servo get switch smaller switch could mounted right out open can get couldnt find Slightly later Bob left another goodie desk prototype servo reverser ACE R/C few mods could fit space available would left servo having two pigtails rotation Plug need configuration left project returned servo Bob must careful let unused plug short out metal parts because will short out batteries kill whole system As said before like idea having servo reverser receiver todays IC circuitry major configuration change would adding second set sockets other rotation Its fair mention Kraft has shipping sets 10 years have two servos set up direction Editors NoteLike feature Cox-Sanwa get what want swapping around dot no dot servos dot tiny circle molded mounting flange between cutouts grommets Once get flight pack set up right theres no way make mistake Thats way like things Over years have bought flight packs transmitters work plane until control trims throws right transmitter trim levers center position leave everything alone until needs service way can pick plane off wall go flying worrying its compatible 98 Model Aviation
Edition: Model Aviation - 1979/04
Page Numbers: 4, 72, 98
FORPLEEE Fantastic gadget saw last iiight far out ture flip prop scale job big engine bursts life does roar like model engine Instead hear popping sound say five-cylinder Kinner called Ex haust Sound Distributor glance looks much like prop-drive set-up gearing operates timed valve ar rangement cylindrical muffler projects five evidentlythis might varied short exhaust stacks arranged radially Flip hold dead distinctive pops come out ap propriate stacks runs isnt loud sounds like real en gine model noise level 4-cycle engine harsh no bite hear thing idle lose mind lack now scale fumes guy marvelous gadget John Hunton placea club meet ing Northern Virginia RC Club result gypsy flying sessions club field Southern hospitality just beautiful John also show-andtell Stinson Gull Wing Reliant customizing Sterling kit match full-scale Reliant variant restoring See Jan 79 issue Johns whip-control Eagle fighter also guy 14-scale Quickie smaller Falcon 56 Asked could customize exhaust sound distributor give us great Merlin drone said anything possible Next month well show some pic tures should mention too Johns 14-year-old son Clay show-andtell item Ken Willards Blue Birds Ac tually lead plane finished young fellow should reach moment truth sometime summer 0 LI3 NVRC group rare guy building RC blimp anoth er has two camera planes has made air-to-air color shots 1/4-scale jobs magnificent aerial views places like Dulles Kings Dominion Disney-like amusement park MA will run feature show-and-tell stuff has got us ga-ga 1978 show-and-tell year rollicking sessions band mountain elvesthe rubber scale guys great revival meeting Flying Aces Scale Model Nats Johnsville PA surpas sing pleasures own sport RC jobs weve mentioned before first May evening rol ling hills well out Maryland beau tiful little flying field gay colored hot air balloon risen unexpectedly nearby pasture slowly drifting sunset shades ing crept across grass strange shape bright light its nose ar rowed overheadthe Concorde During summer occasional visitors heard say must field talked about Model Aviation no great Air Base prairie vista can chase miles Shangri La wont tell youll happy know somewhere modeling Shangri La modeler 51 years saw great lightat first watching remarkable rubber scale things perceiving own RC crates same vantage point special ethereal quality way models fly well term quality flight sharpened sense obvious fact plane big little has its individ ual performance envelope work within envelope find key things never noted fore Does groove smoothly aesthetic old-time scaled down RC suddenly related conventional RC sist jobs Mr Mulligan compares Cub Fly like Mr Mulligan like Cub ham-handed real Mr Mulligan wed suppose would dead pilot Whereas Cub might hang several feet off runway scratched head trying decide whether give gun go round hold stick way back bounce ingloriously along runway like jackrabbit Cub forgives knock Mr Mulligan Un derstand ship fly dont make panacea problems model pilotage enjoy sense fly ing opposed merely flying ship looking another interesting envelope came six-foot light weight Veco 19a ship feel air currents ride thermals search lift come afar like sailing ship across Western Ocean now 6-foot Sniffer hung up completed two hours ago Once would have merely big Sniffer Now perform ance envelope What did want ship What special twist followed solid RC structural practicethough sturdy wing openaccepted bit weight penalty beefed up better sport model would handle better glide bit faster still have formid able soaring ability ability pene trate nice course just build model inspired make see pretty jobs field some performance catches eye illuminating think terms performance envelope Design ers take care absolutely everything penultimate compromise ship run-of-the-mill appeal Martini sips mix ture likes So put next design paper give tweak learned about funflying Anything isnt pattern job pipe retracts left-turning bul let pylon job Sport Scale usually designated fun flying Now consider Joe Carter popped up night ShangriLa bearing huge arm ful strange aircraft mysterious wings booms unidentified ob jects protruding directions First flew odd canard Out front long boom fuselage Ace magnet ic actuator balance all-wood crate no dihedral wing airfoil diamond base seemed inch bigthat tailing edge Continued page 72 4 Model Aviation Openers/Winter continued page 4 contraption seemed airworthy stupified expert bystander handed Joe two Ace transmittersone some other frequency twin pusher 1910 era precise ly duplicated way props butchered can say good flying models 1910apparently Followed RC sist Englands first gassies strange high wing funny planform great sweeping curves strange angular rigging tore up sky asked Joe might Capt Bowdens ancients eyes lit up Bowden advised us British equivalent Charlie Grant older guys know what means Bowden named odd crates things suggestive mice insectsand gosh configurations looked part Joe wound up Wakefield-type rubber job proceeded steer around field RC final ly has nifties home final ly isnt good wordand said should know friend really builds far out stuff great quanti ties long stick like yard stick about six feet long end Half About two thirds length stick other di rection small metal tab FO didnt have foggiest Joe started engine grasped small projecting pivotso small didnt see itlocated under stick about third its length away engine stick began revolve faster faster swishing Dopler effect incredi- ble sound flew off hand helicopter As climbed like Grim Reapers scythe drifted toward lone tree terror local flier proving thereby models alike As gawked someone said Joe flew thing out hamburger joint parking lot night lights yet spectacle caused traffic jam believe FO thinks does must something about April issues people considered April issue 12 months ago best ever seen sure magazines dont have souls own biorythms magic April 1979 issue Watching shape up weeks know block buster editor like win ning door prize first clue something special about happen came art editor said cover lines Attempting se lect just two impossible model between covers clam ored attention designers equal landto say least respected peers big Fairchild Clapps surely will live plans marvel flight stirs heart spite its seeming complexity looks buildable unreasonable effort Bill Henns rubber scale Chambermaid epitome art structural gem truly phenomenal performer As Nats winner category told us awe Chambermaid flies forever Control-line people especially hot-shot Carrier fliers will respect Hazens MO-l Sport RCers may stunned unorthodox configuration Bill Evan s X-wing Astron description first test flight before crowd cur ious witnesses gleefully waiting him put line reminds us comedian Fred Allens quip laughed stood up canoe didnt know too cheap tip last laugh Bills Its aerobatic screamer think Bill has worthy encore Simitar queer bird stands month month out top plans list What does man have against stabilizers Consider columnists inspire other new heights RC Scale Wischers tops Soaring Dan Pruss has become respected correspon dent international awareness last month actually interviewed Wer ner Sitar Europe Did Austrians really fly 242 mph FO thinks sohand us bullet-proof vest No matter what specialty col umnists VanPutte Meuser Myers etc Continued page 98 72 Model Aviation Hall Famer Harold DeBolt keeps up will tough act follow Wed like showyou picture him 1978 United Pylon Racing CircuitGrand Champion Trophyalso SportClass Champion placing high /4 Midget Formula took him nine years win flew Lii Quickie Form withal 0-7 prop K&B Used &fodelAviation Sportater AMA Sport Pylon HP Below Shaking hands Harold recent EXPO Show Midwests Frank Garcher left Jim Newman design/engineering department Hal noted designer himself once major manufacturer kits joining Jimbut working home luckystiff launch line kits will take modelers way through ail phases modeling tKL C Openers/Winter continued page 72 have something tell As RCer FOs chief interest CL Racing frantic aerobatics pilots center circle will find Bill Lee CL Racing talking about home-made fibreglass props Bill Wynn Paul too guy endlessly seeks truth about tanks things like props doing experimenting finding para meters Dave Chesney writes beautifully RC Helicopters column existence now Bill Warner Sport/Scale will put humor life flying circus note others gang Without guys like us would never know about hundreds things add up sum total skills Brad Powers lead article floats quarter-scale landmark article Model aviation old century yet explosion knowledge techniques products never dared dream about what know about floats would fit smallest drawer field box So designer partook dozens famous pro jects made history modeler boot telling us design float virtually size modelas well monsters weve yet see water Note feed-inIrwin Ohlsson great Ernie Stout Convair fame What suggesting dear friend April issue however excep tional 12 year talking about magazine Within another yearGod willingit will thousand light years beyond April 1976 MA began July 1975 its modern form ask conscious magazine contro versial terms some other magazines have shown theyd like see deadbut inspect closely what speak especially minority members did subscribe MA past yours wed like proud AS WE GO TO PRESS sad news ar rives passing Myron Mike Schlesinger recent past president Top Flite Models Mike respected friend industry innumerable modelers true pioneer helped start Top Flite its way chaired trade show committee 1956 became member HIAAs board directors served nearly 10 years chairman co-chairman HIAAs Model Aeronautics Division Hu morous easy going always compassion ate understanding Mike Schlesinger will truly missed us Floats Powers continued page 17 actual floats installed Citabria model together summary results some photos Irwin Ohlsson thirties deve loped line famous Ohlsson engines now retired builds beautiful model seaplanes has given pair floats developed has found very satisfactory straightforward design have generous step landing angle embody progressive deadrise Rather present float complete its displacement Center Buoyancy etc ready determined will give its dimensions trim another guesstimate draft 16 40 percent its beam data procedures already discussed up find answers problems Fig 6 shows float answers will found illustration Answers Float Prob lems Finally wish express thanks Ernest G Stout former Chief Hydrody namics Convair worked interesting projects sistance providing data presented herein Now am going start building float build finish before write let know works can de cide whether stay leave Tierra Del Fuego RC Technique/Myers continued page 19 control thats going wrong way move pushrod hole opposite side output wheel frequently make such change field someone needs disadvantage approach pushrods usually get tangled you end up product review product review product review Radial Engines man has thingultra deluxe 57-cylinder scale-like engines /4 scale 4-cycle high-torque swing 16-8 through 20-6 props Low vibra tion low fuel consumption mild glow fuel 6-in diameter 23 oz weight 7cylinder engines offered 3 versionspol ished aluminum anodized black deluxe Collectors Gold Edition package trimmed 14K gold Manufacturer states fully opera tional warranted 90 dayssold direct Executive Engines Co 16650 S 104th Ave Orland Park IL 60462 product review product review product review swapping rudder elevator servos side-by-side using Nyrod often finds surgery neces sary because outer shell has anchored location doesnt allow shift connection other side wheel Wouldnt nice could just throw reversing switch servo point Bobs eyes lit up Ill bet Ace R/C Bantam Midget machinery will fit regular Bantam case says leave enough room servo reverser dont see what can idea George kicked around some possibilities until time get back work few days later Bantam case Bantam Midget servo appeared desk magic Christmas came bit early year thought until Bob told wanted back after youve finished rever sing switch first thought make use 16pin DIP switch After little consideration possibilities left open direct short across batteries dropped idea Besides switch too big Next tried 4PDT Noble switch commonly used switch harnesses RC systems can made fit little help Dremel problem will have take out servo get switch smaller switch could mounted right out open can get couldnt find Slightly later Bob left another goodie desk prototype servo reverser ACE R/C few mods could fit space available would left servo having two pigtails rotation Plug need configuration left project returned servo Bob must careful let unused plug short out metal parts because will short out batteries kill whole system As said before like idea having servo reverser receiver todays IC circuitry major configuration change would adding second set sockets other rotation Its fair mention Kraft has shipping sets 10 years have two servos set up direction Editors NoteLike feature Cox-Sanwa get what want swapping around dot no dot servos dot tiny circle molded mounting flange between cutouts grommets Once get flight pack set up right theres no way make mistake Thats way like things Over years have bought flight packs transmitters work plane until control trims throws right transmitter trim levers center position leave everything alone until needs service way can pick plane off wall go flying worrying its compatible 98 Model Aviation