Ralph D Kuenz EVER WONDER hundred square feet type have used up controversy over Peanut Scale rules issue ranges avid scale type wants another full-scale event smaller models strictly fun flier wants mild form relaxing competition Standing off side others four-gram model builder surrounded trophies culprit Can build four-gram scale ship Its really quite accomplishment eyes door builder Another guy found sidelines seven-year-old doesnt understand complex rules fashioned warring eagles build fly tiny models Lets crowd him out arena want see him middle field gym floor beaming pride flying model Lets keep spirit event mind have run event perhaps 25 meets several Nationals Ive seen super competitive type fly Ive seen kids live second flight Kim Mather standing still very first time life thumb stuck side pin himself right tiny red model circles above very young-at-heart Rolfe Gregory strutting out floor retrieve beautiful blue silver Travel aire biplane Barry Pailet releases Pilatus runs dads side share Jean moment through thrashing around Peanut Scale rules believe things will still happen because tiny little Peanut Scale much bigger us Received request Dr John Mar tin 3227 Darwin St Miami Fla 33133 old AMA rule books Doc planning doing article Scale rules have progressed through years Indoor Scale rules Doc editor Hanger Pilot bugle MIAMA indoor club Dade County Fla group ran Peanut Scale last years Nats Doc too makes lot strange noises over present rules event 30 Model Aviation Sherman Gillespie modeled Udet Flamingo plans originally done Bill Winter Walter McBride March 1935 ModelAirp lane News Photo Jack Stewart fine flier Below Judging Indoor Scale models 1970 Nats Al Koehler Bob Mosher Al Burcsycki Cessna Bucky Servaites Curtiss Seagull Joe Macay Bristol F2B Calvin Shumate Bottom Chagrin Falls 1975 Jack Russ admires Fokker V-23 Ross Brown photo last column some words devoted Rubber Scale racers some Lin Reichel informs intends run Thompson Trophy race unofficial event years Nationals provided Nats held Dayton Ohio 2 gets OK Open pre-WW II racers miniature replicas Thompson Trophy will awarded Lin has prepared data sheet rules ships qualify sources plans documentation self-addressed stamped envelope either Lin Reichel 3301 Cindy Lane Erie Pa myself will get Ive received box full mail respond ing nae calling contest cartoon character seems scale modelers just naturally gifted great imagination names will hard pick winner winner will announced next column months cartoon relates article props back Peanut Scale Farman Sport Biplane labor love John Oldenkamp supplied two photos Below Seen front quarter view Farman seems poised flight Propor tions also would excellent RC Sport 5 -- a wood really s way out9 know price has gone up terribly recent past wasnt aware its impending scarcity eventual demise stated letter Envoy Corp concern polling modelers prob able acceptance replacement balsa wood say can made Appar ently initial cost high expected sales warrant developing stuff will sell about half cost balsa Ill have seeasamplefirst repeat didnt know good old balsa wood its way out Tips Techniques some illustrations depicting construction realistic functional land ing gear Sketch #1 shows method simulating working shock absorbers fUt{w 5110F OjtTV rtuThr 5CDA ~MW }XMMySOtIcS SKETCH #1 niqu cx b uY2d till models similar tar such Cuitiss Robin Fairchild 24 Davis Dl-W Sketch ft2 representative single-strut type bond-paper fillet open rear covers gap landing gear leg/fuselage joint enables landing gear leg Sketch #4 shows method providing thrust adjustment both down- side thrust Use either dowel insert hard wood block rear nose block take wood screw Remember mark - -a vertical horizontal reference line tCNt in/~ use loosen screw start ground zero iJIs - P~J4 SKETCH #2 7ThO&F SKETCH #4 deflect rearward type gear shown Sketch #3 could used Ryan SIM Aeroneer Miles Mohawk typi cal fixed-gear-spatted Japanese carrier plane method allows wheel some controlled springing movement inside wheel pant wheel pant can also flex strut Pres Bruning uses method jumbo scale Aeroneer RN i~riZ Ii- Ho CH #3 Dave Stott comes recommen dation use lacquer applying Japanese tissue Because lacquer shrinks very little doesnt pull tissue down structure get blob corner former/stringer junction Dave also says does agree Walt Eggert use incidence lower wing biplane See last col umn stall lower wing first Dave always puts incidence forward wing stalls first center lift shifted rearward aiding recovery normal flying attitude Ive always done Dave does guess Ill have try Walts method bipe see myself works bettercontinued page 86 April 1976 31 CL Navy Carrier/Perry continued page 38 Crankcase pressure systems far widely used systems Navy Carrier flying system pressure crankcase engine used force fuel sealed tank carbu retor pressure can timed un timed Untimed pressure obtained pressure fitting constantly open crankcase usually installed place backplate screw hole drilled through cylinder bypass Timed pressure uses intake valve open pressure fitting crankcase dur ing power stroke engine crankcase pressure highest Most rearintake engines have hole purpose already drilled backplate timedpressure system provides higher pressure no real difference operating procedures either method sys tem easy install sensitive to smallest air leak leaks can sometimes hard identify Crankcase pressure systems usually use exhaust restrictor speed con trol reduce fuel flow engine slowed fuel meter usually used conjunction exhaust restrictor Although fuel meter absolutely necessary its use provides slower reliable idle method speed ATTENTION NATIONALS CONTESTANTS Fly FOX products 1976 Nationals win CASH AWARD addition trophy $200 cash 1st place events Combat r Open CL Stunt r Open RC Pattern s D RC Quarter Midget $100 cash 1st place other event Requirements win using Fox engine fuel plug Procedure een 5 PM 10 PM bring winning model trophy motel will take pictures get advertising releases signed hand check Fox introducing several new products may wish try partial list Fox 36 Rear Exhaust mproved version motor won Profile carrier 1975 Available Ball Bearing & Bushing versions FOX combat Special tically improved over 1975 model Bore powersmoother runningmore durable Insert available slow Combat Fox lSBB lable several variations competition model features A' crank shaft structure race over 30000 RPM FOX MANUFACTURING CO 5305 Towson / Ft Smith AR 72901 control instructions installing exhaust slide engine thor oughly discussed February 1974 issue Model Airplane News photo type speed control installed engine appears column Ex haust slides fuel meters avail able Harry Higley 433 Arquilla Dr Glenwood IL 60425 Dave Wallick 158 Brookvalley Dr Elyria OH 44035 Art Adamisin 22454 Fair fax Taylor MI 48180 makes rotary exhaust baffle Another method speed control crankcase pressure on-off pressure system method uses intake throt tle valve either switches fuel feed separate tank releases pressure tank provide fuel suction throttle closed reduced pressure tank serves same purpose fuel meter reducing fuel flow idle Kavan makes throttle pressure-relief valve built body Kavan also includes simple fuel meter help ease transition off pressure Because pressure-relief valve Kavan requires little force operate throttles particularly idle can disadvantage Carrier flying have overcome prob lem using Kavan throttle con junction exhaust restrictor Kavan spring-loaded remain closed after closed first time idle adjustment set give about 12000 rpm exhaust restrictor open ex haust restrictor used control engine speed providing system re quires almost no force operate method using exhaust restrictor speed control suction fuel system pioneered Roberts Van-speed back early days Car rier flying provides reliable simple method speed control good engine response might worth considering Profile Carrier Class II can simple primary system emergency back-up problems leaks develop fuel-meter/exhaust-restrictor systemjust disconnect pressure line drop smaller venturi fly reason intake throttles alone difficult use crankcase pressure systems throttle closes crankcase pressure changes mixture adjustments can become quite critical impossible really low idle brings us external pressure systemsbladders pacifierswhich rely engine pressure source widely used Combat Speed except airplanes have never seen used Carrier photo system appears column simple adjust suc tion system very reliable throttle can throttle built-in fuel meter such Supertigre MAG Perry carburetors Supertigre Perry carbs can bored out slightly increase area addition sides spray bar Supertigre MAG can filed down increase intake area new Perry carbs designed use Perry pump might quite suitable modifica tion bit unusual equipment re quired means closing off fuel line before engine started Combat fliers use large spring-type paper clips exposed fuel line use simple cut-off fits behind engine use Tatone bladders Sig Mfg Co carries well CMI Captains Bladders tYlel fillers visit Combat circles can provide information installa tion operation additional sources materials hope have answered some hows whys pressure fuel systems re lated speed-control methods newcomer Carrier will have idea what available Perhaps experienced modelers have seen something like better present system have system better systems mentioned just different let us hear about Carrier modelers use some rather specialized equipment always readily available corner hobby shop have listed some sources materi als services column have product would useful Carrier modelers let hear information can appear column address 5016 Angelita Ave Dayton OH 45424 WANTED ideas happenings hints/kinks how-to sketches photos news etc Send columnist category concernedat address shown column photo idea printed Model Aviation will pay $5 contributor FF Sport/Kuenz continued page 31 least two firms importing qual ity brown rubber received samples Sterling Models via AMA Hdqrts Vintage Aero Both 1mm X 3mm size appeared same ma terial looks feels much like Pirelli diagonal collander marks compared piece 3mm Pirelli Pirelli averaged 045 thick new rubber 1mm thinner 1mm same length rubber motor new stuff correspondingly lighter Pirelli indicating approximately same density Three single-loop motors tested destruction averaged 80 86 Model Aviation RO KWIK-LINK LOCK IThe tried true Ispring steel NUTS Iwik-Link Ideal control linkage 2 No109.. 75c Aircraft Quality Nylon Insert LOCK NUTSI 1682-56 1693-48 1716-32 1704-40 J l2perset. DU-BRO 20 FLEX-CABLE MOTOR CONTROL O Provides ultamat77 FlexibleSteerAircraftCable control cable assembly1 Brass Threaded Coupler flexible free run1 Threaded Kwik-Link Highly1 Solder-Type Kwik-Link IDEAL FORning adjustable at1 Nylon Sleeve R/C PLANEScontrol hornNo 165$149 .BOATS.CARS 0 TOUGH NYLON LINK SNAPS-ON AND HOLDS TIGHT 2-56 THREADED COUPLER INCL JLL BOLT-ON LINK riivThis 3-piece ball link set No 180 readily adaptable rudder elevator IiIIIIIis must helicopters OOEL boats cars Ball joint action JkUiLJand servo linkage RIC planes oeliminates binding neat and16775 clean appearance OnlV 85 PRODUCTS INCORPORATED 480 Bonner Road Wauconda Illinois 60084 USA turns per inch 106% recommended turns Pirelli 75 per inch being thinner section delivered less power No didnt wind Pirelli destruction put back strongbox limited amount testing Ive done time appears new rubber good stuff its like using slightly smaller sec tion Pirelli some sources obtaining scale information Breguet aircraft Societe Anonyme Avions Marcel Dassault Breguet Aviation Mr Jegura 33 Rue Du Professeur Pauchet 92420 Vaucresson France Hawker aircraft Hawker Siddeley Aviation LTD Richmond Road Kings ton-upon-Thames KT2 505 Surrey Eng land racing aircraft American Air Racing Society PO Box 121 South Euclid Ohio 44121 next installment Ill include plans winding stooge some data typical instrument panels address 14645 Stahelin Detroit Mi 48223 April1976 87 r DU-BRO KWIK-GLO GLO-PLUG CONNECTOR engines 10 & up piece brass barrel snaps plug positive starting 24- 112 long attached battery lugs An excellent accessory todays kind modeler No 147$200 NYLON BELCRANK ASSEMBLY 900 Nylon oBelcrank o Brass Bushing 0 4-40x Bolt Washer Lock Washer oNut 2 per Set INSIST ON THE FINEST Flown indoors out Jumbo Scale ThorpJumbo Spitfire Megow plans Charles T-18 Clarence Mather does 50-55 secondsSchobloher has 50-in wing 16 strands 6-mm rubber Three-blader prop folds impact wings knock off Picture taken Bob Mosher authors 29 Chester Jeep begins take shape Steady favorite Pic Bob Mosher 18 Hawker Spanish Fury lovely project Pres Bruning Photo Bob Mosher
Edition: Model Aviation - 1976/04
Page Numbers: 30, 31, 86, 87
Ralph D Kuenz EVER WONDER hundred square feet type have used up controversy over Peanut Scale rules issue ranges avid scale type wants another full-scale event smaller models strictly fun flier wants mild form relaxing competition Standing off side others four-gram model builder surrounded trophies culprit Can build four-gram scale ship Its really quite accomplishment eyes door builder Another guy found sidelines seven-year-old doesnt understand complex rules fashioned warring eagles build fly tiny models Lets crowd him out arena want see him middle field gym floor beaming pride flying model Lets keep spirit event mind have run event perhaps 25 meets several Nationals Ive seen super competitive type fly Ive seen kids live second flight Kim Mather standing still very first time life thumb stuck side pin himself right tiny red model circles above very young-at-heart Rolfe Gregory strutting out floor retrieve beautiful blue silver Travel aire biplane Barry Pailet releases Pilatus runs dads side share Jean moment through thrashing around Peanut Scale rules believe things will still happen because tiny little Peanut Scale much bigger us Received request Dr John Mar tin 3227 Darwin St Miami Fla 33133 old AMA rule books Doc planning doing article Scale rules have progressed through years Indoor Scale rules Doc editor Hanger Pilot bugle MIAMA indoor club Dade County Fla group ran Peanut Scale last years Nats Doc too makes lot strange noises over present rules event 30 Model Aviation Sherman Gillespie modeled Udet Flamingo plans originally done Bill Winter Walter McBride March 1935 ModelAirp lane News Photo Jack Stewart fine flier Below Judging Indoor Scale models 1970 Nats Al Koehler Bob Mosher Al Burcsycki Cessna Bucky Servaites Curtiss Seagull Joe Macay Bristol F2B Calvin Shumate Bottom Chagrin Falls 1975 Jack Russ admires Fokker V-23 Ross Brown photo last column some words devoted Rubber Scale racers some Lin Reichel informs intends run Thompson Trophy race unofficial event years Nationals provided Nats held Dayton Ohio 2 gets OK Open pre-WW II racers miniature replicas Thompson Trophy will awarded Lin has prepared data sheet rules ships qualify sources plans documentation self-addressed stamped envelope either Lin Reichel 3301 Cindy Lane Erie Pa myself will get Ive received box full mail respond ing nae calling contest cartoon character seems scale modelers just naturally gifted great imagination names will hard pick winner winner will announced next column months cartoon relates article props back Peanut Scale Farman Sport Biplane labor love John Oldenkamp supplied two photos Below Seen front quarter view Farman seems poised flight Propor tions also would excellent RC Sport 5 -- a wood really s way out9 know price has gone up terribly recent past wasnt aware its impending scarcity eventual demise stated letter Envoy Corp concern polling modelers prob able acceptance replacement balsa wood say can made Appar ently initial cost high expected sales warrant developing stuff will sell about half cost balsa Ill have seeasamplefirst repeat didnt know good old balsa wood its way out Tips Techniques some illustrations depicting construction realistic functional land ing gear Sketch #1 shows method simulating working shock absorbers fUt{w 5110F OjtTV rtuThr 5CDA ~MW }XMMySOtIcS SKETCH #1 niqu cx b uY2d till models similar tar such Cuitiss Robin Fairchild 24 Davis Dl-W Sketch ft2 representative single-strut type bond-paper fillet open rear covers gap landing gear leg/fuselage joint enables landing gear leg Sketch #4 shows method providing thrust adjustment both down- side thrust Use either dowel insert hard wood block rear nose block take wood screw Remember mark - -a vertical horizontal reference line tCNt in/~ use loosen screw start ground zero iJIs - P~J4 SKETCH #2 7ThO&F SKETCH #4 deflect rearward type gear shown Sketch #3 could used Ryan SIM Aeroneer Miles Mohawk typi cal fixed-gear-spatted Japanese carrier plane method allows wheel some controlled springing movement inside wheel pant wheel pant can also flex strut Pres Bruning uses method jumbo scale Aeroneer RN i~riZ Ii- Ho CH #3 Dave Stott comes recommen dation use lacquer applying Japanese tissue Because lacquer shrinks very little doesnt pull tissue down structure get blob corner former/stringer junction Dave also says does agree Walt Eggert use incidence lower wing biplane See last col umn stall lower wing first Dave always puts incidence forward wing stalls first center lift shifted rearward aiding recovery normal flying attitude Ive always done Dave does guess Ill have try Walts method bipe see myself works bettercontinued page 86 April 1976 31 CL Navy Carrier/Perry continued page 38 Crankcase pressure systems far widely used systems Navy Carrier flying system pressure crankcase engine used force fuel sealed tank carbu retor pressure can timed un timed Untimed pressure obtained pressure fitting constantly open crankcase usually installed place backplate screw hole drilled through cylinder bypass Timed pressure uses intake valve open pressure fitting crankcase dur ing power stroke engine crankcase pressure highest Most rearintake engines have hole purpose already drilled backplate timedpressure system provides higher pressure no real difference operating procedures either method sys tem easy install sensitive to smallest air leak leaks can sometimes hard identify Crankcase pressure systems usually use exhaust restrictor speed con trol reduce fuel flow engine slowed fuel meter usually used conjunction exhaust restrictor Although fuel meter absolutely necessary its use provides slower reliable idle method speed ATTENTION NATIONALS CONTESTANTS Fly FOX products 1976 Nationals win CASH AWARD addition trophy $200 cash 1st place events Combat r Open CL Stunt r Open RC Pattern s D RC Quarter Midget $100 cash 1st place other event Requirements win using Fox engine fuel plug Procedure een 5 PM 10 PM bring winning model trophy motel will take pictures get advertising releases signed hand check Fox introducing several new products may wish try partial list Fox 36 Rear Exhaust mproved version motor won Profile carrier 1975 Available Ball Bearing & Bushing versions FOX combat Special tically improved over 1975 model Bore powersmoother runningmore durable Insert available slow Combat Fox lSBB lable several variations competition model features A' crank shaft structure race over 30000 RPM FOX MANUFACTURING CO 5305 Towson / Ft Smith AR 72901 control instructions installing exhaust slide engine thor oughly discussed February 1974 issue Model Airplane News photo type speed control installed engine appears column Ex haust slides fuel meters avail able Harry Higley 433 Arquilla Dr Glenwood IL 60425 Dave Wallick 158 Brookvalley Dr Elyria OH 44035 Art Adamisin 22454 Fair fax Taylor MI 48180 makes rotary exhaust baffle Another method speed control crankcase pressure on-off pressure system method uses intake throt tle valve either switches fuel feed separate tank releases pressure tank provide fuel suction throttle closed reduced pressure tank serves same purpose fuel meter reducing fuel flow idle Kavan makes throttle pressure-relief valve built body Kavan also includes simple fuel meter help ease transition off pressure Because pressure-relief valve Kavan requires little force operate throttles particularly idle can disadvantage Carrier flying have overcome prob lem using Kavan throttle con junction exhaust restrictor Kavan spring-loaded remain closed after closed first time idle adjustment set give about 12000 rpm exhaust restrictor open ex haust restrictor used control engine speed providing system re quires almost no force operate method using exhaust restrictor speed control suction fuel system pioneered Roberts Van-speed back early days Car rier flying provides reliable simple method speed control good engine response might worth considering Profile Carrier Class II can simple primary system emergency back-up problems leaks develop fuel-meter/exhaust-restrictor systemjust disconnect pressure line drop smaller venturi fly reason intake throttles alone difficult use crankcase pressure systems throttle closes crankcase pressure changes mixture adjustments can become quite critical impossible really low idle brings us external pressure systemsbladders pacifierswhich rely engine pressure source widely used Combat Speed except airplanes have never seen used Carrier photo system appears column simple adjust suc tion system very reliable throttle can throttle built-in fuel meter such Supertigre MAG Perry carburetors Supertigre Perry carbs can bored out slightly increase area addition sides spray bar Supertigre MAG can filed down increase intake area new Perry carbs designed use Perry pump might quite suitable modifica tion bit unusual equipment re quired means closing off fuel line before engine started Combat fliers use large spring-type paper clips exposed fuel line use simple cut-off fits behind engine use Tatone bladders Sig Mfg Co carries well CMI Captains Bladders tYlel fillers visit Combat circles can provide information installa tion operation additional sources materials hope have answered some hows whys pressure fuel systems re lated speed-control methods newcomer Carrier will have idea what available Perhaps experienced modelers have seen something like better present system have system better systems mentioned just different let us hear about Carrier modelers use some rather specialized equipment always readily available corner hobby shop have listed some sources materi als services column have product would useful Carrier modelers let hear information can appear column address 5016 Angelita Ave Dayton OH 45424 WANTED ideas happenings hints/kinks how-to sketches photos news etc Send columnist category concernedat address shown column photo idea printed Model Aviation will pay $5 contributor FF Sport/Kuenz continued page 31 least two firms importing qual ity brown rubber received samples Sterling Models via AMA Hdqrts Vintage Aero Both 1mm X 3mm size appeared same ma terial looks feels much like Pirelli diagonal collander marks compared piece 3mm Pirelli Pirelli averaged 045 thick new rubber 1mm thinner 1mm same length rubber motor new stuff correspondingly lighter Pirelli indicating approximately same density Three single-loop motors tested destruction averaged 80 86 Model Aviation RO KWIK-LINK LOCK IThe tried true Ispring steel NUTS Iwik-Link Ideal control linkage 2 No109.. 75c Aircraft Quality Nylon Insert LOCK NUTSI 1682-56 1693-48 1716-32 1704-40 J l2perset. DU-BRO 20 FLEX-CABLE MOTOR CONTROL O Provides ultamat77 FlexibleSteerAircraftCable control cable assembly1 Brass Threaded Coupler flexible free run1 Threaded Kwik-Link Highly1 Solder-Type Kwik-Link IDEAL FORning adjustable at1 Nylon Sleeve R/C PLANEScontrol hornNo 165$149 .BOATS.CARS 0 TOUGH NYLON LINK SNAPS-ON AND HOLDS TIGHT 2-56 THREADED COUPLER INCL JLL BOLT-ON LINK riivThis 3-piece ball link set No 180 readily adaptable rudder elevator IiIIIIIis must helicopters OOEL boats cars Ball joint action JkUiLJand servo linkage RIC planes oeliminates binding neat and16775 clean appearance OnlV 85 PRODUCTS INCORPORATED 480 Bonner Road Wauconda Illinois 60084 USA turns per inch 106% recommended turns Pirelli 75 per inch being thinner section delivered less power No didnt wind Pirelli destruction put back strongbox limited amount testing Ive done time appears new rubber good stuff its like using slightly smaller sec tion Pirelli some sources obtaining scale information Breguet aircraft Societe Anonyme Avions Marcel Dassault Breguet Aviation Mr Jegura 33 Rue Du Professeur Pauchet 92420 Vaucresson France Hawker aircraft Hawker Siddeley Aviation LTD Richmond Road Kings ton-upon-Thames KT2 505 Surrey Eng land racing aircraft American Air Racing Society PO Box 121 South Euclid Ohio 44121 next installment Ill include plans winding stooge some data typical instrument panels address 14645 Stahelin Detroit Mi 48223 April1976 87 r DU-BRO KWIK-GLO GLO-PLUG CONNECTOR engines 10 & up piece brass barrel snaps plug positive starting 24- 112 long attached battery lugs An excellent accessory todays kind modeler No 147$200 NYLON BELCRANK ASSEMBLY 900 Nylon oBelcrank o Brass Bushing 0 4-40x Bolt Washer Lock Washer oNut 2 per Set INSIST ON THE FINEST Flown indoors out Jumbo Scale ThorpJumbo Spitfire Megow plans Charles T-18 Clarence Mather does 50-55 secondsSchobloher has 50-in wing 16 strands 6-mm rubber Three-blader prop folds impact wings knock off Picture taken Bob Mosher authors 29 Chester Jeep begins take shape Steady favorite Pic Bob Mosher 18 Hawker Spanish Fury lovely project Pres Bruning Photo Bob Mosher
Edition: Model Aviation - 1976/04
Page Numbers: 30, 31, 86, 87
Ralph D Kuenz EVER WONDER hundred square feet type have used up controversy over Peanut Scale rules issue ranges avid scale type wants another full-scale event smaller models strictly fun flier wants mild form relaxing competition Standing off side others four-gram model builder surrounded trophies culprit Can build four-gram scale ship Its really quite accomplishment eyes door builder Another guy found sidelines seven-year-old doesnt understand complex rules fashioned warring eagles build fly tiny models Lets crowd him out arena want see him middle field gym floor beaming pride flying model Lets keep spirit event mind have run event perhaps 25 meets several Nationals Ive seen super competitive type fly Ive seen kids live second flight Kim Mather standing still very first time life thumb stuck side pin himself right tiny red model circles above very young-at-heart Rolfe Gregory strutting out floor retrieve beautiful blue silver Travel aire biplane Barry Pailet releases Pilatus runs dads side share Jean moment through thrashing around Peanut Scale rules believe things will still happen because tiny little Peanut Scale much bigger us Received request Dr John Mar tin 3227 Darwin St Miami Fla 33133 old AMA rule books Doc planning doing article Scale rules have progressed through years Indoor Scale rules Doc editor Hanger Pilot bugle MIAMA indoor club Dade County Fla group ran Peanut Scale last years Nats Doc too makes lot strange noises over present rules event 30 Model Aviation Sherman Gillespie modeled Udet Flamingo plans originally done Bill Winter Walter McBride March 1935 ModelAirp lane News Photo Jack Stewart fine flier Below Judging Indoor Scale models 1970 Nats Al Koehler Bob Mosher Al Burcsycki Cessna Bucky Servaites Curtiss Seagull Joe Macay Bristol F2B Calvin Shumate Bottom Chagrin Falls 1975 Jack Russ admires Fokker V-23 Ross Brown photo last column some words devoted Rubber Scale racers some Lin Reichel informs intends run Thompson Trophy race unofficial event years Nationals provided Nats held Dayton Ohio 2 gets OK Open pre-WW II racers miniature replicas Thompson Trophy will awarded Lin has prepared data sheet rules ships qualify sources plans documentation self-addressed stamped envelope either Lin Reichel 3301 Cindy Lane Erie Pa myself will get Ive received box full mail respond ing nae calling contest cartoon character seems scale modelers just naturally gifted great imagination names will hard pick winner winner will announced next column months cartoon relates article props back Peanut Scale Farman Sport Biplane labor love John Oldenkamp supplied two photos Below Seen front quarter view Farman seems poised flight Propor tions also would excellent RC Sport 5 -- a wood really s way out9 know price has gone up terribly recent past wasnt aware its impending scarcity eventual demise stated letter Envoy Corp concern polling modelers prob able acceptance replacement balsa wood say can made Appar ently initial cost high expected sales warrant developing stuff will sell about half cost balsa Ill have seeasamplefirst repeat didnt know good old balsa wood its way out Tips Techniques some illustrations depicting construction realistic functional land ing gear Sketch #1 shows method simulating working shock absorbers fUt{w 5110F OjtTV rtuThr 5CDA ~MW }XMMySOtIcS SKETCH #1 niqu cx b uY2d till models similar tar such Cuitiss Robin Fairchild 24 Davis Dl-W Sketch ft2 representative single-strut type bond-paper fillet open rear covers gap landing gear leg/fuselage joint enables landing gear leg Sketch #4 shows method providing thrust adjustment both down- side thrust Use either dowel insert hard wood block rear nose block take wood screw Remember mark - -a vertical horizontal reference line tCNt in/~ use loosen screw start ground zero iJIs - P~J4 SKETCH #2 7ThO&F SKETCH #4 deflect rearward type gear shown Sketch #3 could used Ryan SIM Aeroneer Miles Mohawk typi cal fixed-gear-spatted Japanese carrier plane method allows wheel some controlled springing movement inside wheel pant wheel pant can also flex strut Pres Bruning uses method jumbo scale Aeroneer RN i~riZ Ii- Ho CH #3 Dave Stott comes recommen dation use lacquer applying Japanese tissue Because lacquer shrinks very little doesnt pull tissue down structure get blob corner former/stringer junction Dave also says does agree Walt Eggert use incidence lower wing biplane See last col umn stall lower wing first Dave always puts incidence forward wing stalls first center lift shifted rearward aiding recovery normal flying attitude Ive always done Dave does guess Ill have try Walts method bipe see myself works bettercontinued page 86 April 1976 31 CL Navy Carrier/Perry continued page 38 Crankcase pressure systems far widely used systems Navy Carrier flying system pressure crankcase engine used force fuel sealed tank carbu retor pressure can timed un timed Untimed pressure obtained pressure fitting constantly open crankcase usually installed place backplate screw hole drilled through cylinder bypass Timed pressure uses intake valve open pressure fitting crankcase dur ing power stroke engine crankcase pressure highest Most rearintake engines have hole purpose already drilled backplate timedpressure system provides higher pressure no real difference operating procedures either method sys tem easy install sensitive to smallest air leak leaks can sometimes hard identify Crankcase pressure systems usually use exhaust restrictor speed con trol reduce fuel flow engine slowed fuel meter usually used conjunction exhaust restrictor Although fuel meter absolutely necessary its use provides slower reliable idle method speed ATTENTION NATIONALS CONTESTANTS Fly FOX products 1976 Nationals win CASH AWARD addition trophy $200 cash 1st place events Combat r Open CL Stunt r Open RC Pattern s D RC Quarter Midget $100 cash 1st place other event Requirements win using Fox engine fuel plug Procedure een 5 PM 10 PM bring winning model trophy motel will take pictures get advertising releases signed hand check Fox introducing several new products may wish try partial list Fox 36 Rear Exhaust mproved version motor won Profile carrier 1975 Available Ball Bearing & Bushing versions FOX combat Special tically improved over 1975 model Bore powersmoother runningmore durable Insert available slow Combat Fox lSBB lable several variations competition model features A' crank shaft structure race over 30000 RPM FOX MANUFACTURING CO 5305 Towson / Ft Smith AR 72901 control instructions installing exhaust slide engine thor oughly discussed February 1974 issue Model Airplane News photo type speed control installed engine appears column Ex haust slides fuel meters avail able Harry Higley 433 Arquilla Dr Glenwood IL 60425 Dave Wallick 158 Brookvalley Dr Elyria OH 44035 Art Adamisin 22454 Fair fax Taylor MI 48180 makes rotary exhaust baffle Another method speed control crankcase pressure on-off pressure system method uses intake throt tle valve either switches fuel feed separate tank releases pressure tank provide fuel suction throttle closed reduced pressure tank serves same purpose fuel meter reducing fuel flow idle Kavan makes throttle pressure-relief valve built body Kavan also includes simple fuel meter help ease transition off pressure Because pressure-relief valve Kavan requires little force operate throttles particularly idle can disadvantage Carrier flying have overcome prob lem using Kavan throttle con junction exhaust restrictor Kavan spring-loaded remain closed after closed first time idle adjustment set give about 12000 rpm exhaust restrictor open ex haust restrictor used control engine speed providing system re quires almost no force operate method using exhaust restrictor speed control suction fuel system pioneered Roberts Van-speed back early days Car rier flying provides reliable simple method speed control good engine response might worth considering Profile Carrier Class II can simple primary system emergency back-up problems leaks develop fuel-meter/exhaust-restrictor systemjust disconnect pressure line drop smaller venturi fly reason intake throttles alone difficult use crankcase pressure systems throttle closes crankcase pressure changes mixture adjustments can become quite critical impossible really low idle brings us external pressure systemsbladders pacifierswhich rely engine pressure source widely used Combat Speed except airplanes have never seen used Carrier photo system appears column simple adjust suc tion system very reliable throttle can throttle built-in fuel meter such Supertigre MAG Perry carburetors Supertigre Perry carbs can bored out slightly increase area addition sides spray bar Supertigre MAG can filed down increase intake area new Perry carbs designed use Perry pump might quite suitable modifica tion bit unusual equipment re quired means closing off fuel line before engine started Combat fliers use large spring-type paper clips exposed fuel line use simple cut-off fits behind engine use Tatone bladders Sig Mfg Co carries well CMI Captains Bladders tYlel fillers visit Combat circles can provide information installa tion operation additional sources materials hope have answered some hows whys pressure fuel systems re lated speed-control methods newcomer Carrier will have idea what available Perhaps experienced modelers have seen something like better present system have system better systems mentioned just different let us hear about Carrier modelers use some rather specialized equipment always readily available corner hobby shop have listed some sources materi als services column have product would useful Carrier modelers let hear information can appear column address 5016 Angelita Ave Dayton OH 45424 WANTED ideas happenings hints/kinks how-to sketches photos news etc Send columnist category concernedat address shown column photo idea printed Model Aviation will pay $5 contributor FF Sport/Kuenz continued page 31 least two firms importing qual ity brown rubber received samples Sterling Models via AMA Hdqrts Vintage Aero Both 1mm X 3mm size appeared same ma terial looks feels much like Pirelli diagonal collander marks compared piece 3mm Pirelli Pirelli averaged 045 thick new rubber 1mm thinner 1mm same length rubber motor new stuff correspondingly lighter Pirelli indicating approximately same density Three single-loop motors tested destruction averaged 80 86 Model Aviation RO KWIK-LINK LOCK IThe tried true Ispring steel NUTS Iwik-Link Ideal control linkage 2 No109.. 75c Aircraft Quality Nylon Insert LOCK NUTSI 1682-56 1693-48 1716-32 1704-40 J l2perset. DU-BRO 20 FLEX-CABLE MOTOR CONTROL O Provides ultamat77 FlexibleSteerAircraftCable control cable assembly1 Brass Threaded Coupler flexible free run1 Threaded Kwik-Link Highly1 Solder-Type Kwik-Link IDEAL FORning adjustable at1 Nylon Sleeve R/C PLANEScontrol hornNo 165$149 .BOATS.CARS 0 TOUGH NYLON LINK SNAPS-ON AND HOLDS TIGHT 2-56 THREADED COUPLER INCL JLL BOLT-ON LINK riivThis 3-piece ball link set No 180 readily adaptable rudder elevator IiIIIIIis must helicopters OOEL boats cars Ball joint action JkUiLJand servo linkage RIC planes oeliminates binding neat and16775 clean appearance OnlV 85 PRODUCTS INCORPORATED 480 Bonner Road Wauconda Illinois 60084 USA turns per inch 106% recommended turns Pirelli 75 per inch being thinner section delivered less power No didnt wind Pirelli destruction put back strongbox limited amount testing Ive done time appears new rubber good stuff its like using slightly smaller sec tion Pirelli some sources obtaining scale information Breguet aircraft Societe Anonyme Avions Marcel Dassault Breguet Aviation Mr Jegura 33 Rue Du Professeur Pauchet 92420 Vaucresson France Hawker aircraft Hawker Siddeley Aviation LTD Richmond Road Kings ton-upon-Thames KT2 505 Surrey Eng land racing aircraft American Air Racing Society PO Box 121 South Euclid Ohio 44121 next installment Ill include plans winding stooge some data typical instrument panels address 14645 Stahelin Detroit Mi 48223 April1976 87 r DU-BRO KWIK-GLO GLO-PLUG CONNECTOR engines 10 & up piece brass barrel snaps plug positive starting 24- 112 long attached battery lugs An excellent accessory todays kind modeler No 147$200 NYLON BELCRANK ASSEMBLY 900 Nylon oBelcrank o Brass Bushing 0 4-40x Bolt Washer Lock Washer oNut 2 per Set INSIST ON THE FINEST Flown indoors out Jumbo Scale ThorpJumbo Spitfire Megow plans Charles T-18 Clarence Mather does 50-55 secondsSchobloher has 50-in wing 16 strands 6-mm rubber Three-blader prop folds impact wings knock off Picture taken Bob Mosher authors 29 Chester Jeep begins take shape Steady favorite Pic Bob Mosher 18 Hawker Spanish Fury lovely project Pres Bruning Photo Bob Mosher
Edition: Model Aviation - 1976/04
Page Numbers: 30, 31, 86, 87
Ralph D Kuenz EVER WONDER hundred square feet type have used up controversy over Peanut Scale rules issue ranges avid scale type wants another full-scale event smaller models strictly fun flier wants mild form relaxing competition Standing off side others four-gram model builder surrounded trophies culprit Can build four-gram scale ship Its really quite accomplishment eyes door builder Another guy found sidelines seven-year-old doesnt understand complex rules fashioned warring eagles build fly tiny models Lets crowd him out arena want see him middle field gym floor beaming pride flying model Lets keep spirit event mind have run event perhaps 25 meets several Nationals Ive seen super competitive type fly Ive seen kids live second flight Kim Mather standing still very first time life thumb stuck side pin himself right tiny red model circles above very young-at-heart Rolfe Gregory strutting out floor retrieve beautiful blue silver Travel aire biplane Barry Pailet releases Pilatus runs dads side share Jean moment through thrashing around Peanut Scale rules believe things will still happen because tiny little Peanut Scale much bigger us Received request Dr John Mar tin 3227 Darwin St Miami Fla 33133 old AMA rule books Doc planning doing article Scale rules have progressed through years Indoor Scale rules Doc editor Hanger Pilot bugle MIAMA indoor club Dade County Fla group ran Peanut Scale last years Nats Doc too makes lot strange noises over present rules event 30 Model Aviation Sherman Gillespie modeled Udet Flamingo plans originally done Bill Winter Walter McBride March 1935 ModelAirp lane News Photo Jack Stewart fine flier Below Judging Indoor Scale models 1970 Nats Al Koehler Bob Mosher Al Burcsycki Cessna Bucky Servaites Curtiss Seagull Joe Macay Bristol F2B Calvin Shumate Bottom Chagrin Falls 1975 Jack Russ admires Fokker V-23 Ross Brown photo last column some words devoted Rubber Scale racers some Lin Reichel informs intends run Thompson Trophy race unofficial event years Nationals provided Nats held Dayton Ohio 2 gets OK Open pre-WW II racers miniature replicas Thompson Trophy will awarded Lin has prepared data sheet rules ships qualify sources plans documentation self-addressed stamped envelope either Lin Reichel 3301 Cindy Lane Erie Pa myself will get Ive received box full mail respond ing nae calling contest cartoon character seems scale modelers just naturally gifted great imagination names will hard pick winner winner will announced next column months cartoon relates article props back Peanut Scale Farman Sport Biplane labor love John Oldenkamp supplied two photos Below Seen front quarter view Farman seems poised flight Propor tions also would excellent RC Sport 5 -- a wood really s way out9 know price has gone up terribly recent past wasnt aware its impending scarcity eventual demise stated letter Envoy Corp concern polling modelers prob able acceptance replacement balsa wood say can made Appar ently initial cost high expected sales warrant developing stuff will sell about half cost balsa Ill have seeasamplefirst repeat didnt know good old balsa wood its way out Tips Techniques some illustrations depicting construction realistic functional land ing gear Sketch #1 shows method simulating working shock absorbers fUt{w 5110F OjtTV rtuThr 5CDA ~MW }XMMySOtIcS SKETCH #1 niqu cx b uY2d till models similar tar such Cuitiss Robin Fairchild 24 Davis Dl-W Sketch ft2 representative single-strut type bond-paper fillet open rear covers gap landing gear leg/fuselage joint enables landing gear leg Sketch #4 shows method providing thrust adjustment both down- side thrust Use either dowel insert hard wood block rear nose block take wood screw Remember mark - -a vertical horizontal reference line tCNt in/~ use loosen screw start ground zero iJIs - P~J4 SKETCH #2 7ThO&F SKETCH #4 deflect rearward type gear shown Sketch #3 could used Ryan SIM Aeroneer Miles Mohawk typi cal fixed-gear-spatted Japanese carrier plane method allows wheel some controlled springing movement inside wheel pant wheel pant can also flex strut Pres Bruning uses method jumbo scale Aeroneer RN i~riZ Ii- Ho CH #3 Dave Stott comes recommen dation use lacquer applying Japanese tissue Because lacquer shrinks very little doesnt pull tissue down structure get blob corner former/stringer junction Dave also says does agree Walt Eggert use incidence lower wing biplane See last col umn stall lower wing first Dave always puts incidence forward wing stalls first center lift shifted rearward aiding recovery normal flying attitude Ive always done Dave does guess Ill have try Walts method bipe see myself works bettercontinued page 86 April 1976 31 CL Navy Carrier/Perry continued page 38 Crankcase pressure systems far widely used systems Navy Carrier flying system pressure crankcase engine used force fuel sealed tank carbu retor pressure can timed un timed Untimed pressure obtained pressure fitting constantly open crankcase usually installed place backplate screw hole drilled through cylinder bypass Timed pressure uses intake valve open pressure fitting crankcase dur ing power stroke engine crankcase pressure highest Most rearintake engines have hole purpose already drilled backplate timedpressure system provides higher pressure no real difference operating procedures either method sys tem easy install sensitive to smallest air leak leaks can sometimes hard identify Crankcase pressure systems usually use exhaust restrictor speed con trol reduce fuel flow engine slowed fuel meter usually used conjunction exhaust restrictor Although fuel meter absolutely necessary its use provides slower reliable idle method speed ATTENTION NATIONALS CONTESTANTS Fly FOX products 1976 Nationals win CASH AWARD addition trophy $200 cash 1st place events Combat r Open CL Stunt r Open RC Pattern s D RC Quarter Midget $100 cash 1st place other event Requirements win using Fox engine fuel plug Procedure een 5 PM 10 PM bring winning model trophy motel will take pictures get advertising releases signed hand check Fox introducing several new products may wish try partial list Fox 36 Rear Exhaust mproved version motor won Profile carrier 1975 Available Ball Bearing & Bushing versions FOX combat Special tically improved over 1975 model Bore powersmoother runningmore durable Insert available slow Combat Fox lSBB lable several variations competition model features A' crank shaft structure race over 30000 RPM FOX MANUFACTURING CO 5305 Towson / Ft Smith AR 72901 control instructions installing exhaust slide engine thor oughly discussed February 1974 issue Model Airplane News photo type speed control installed engine appears column Ex haust slides fuel meters avail able Harry Higley 433 Arquilla Dr Glenwood IL 60425 Dave Wallick 158 Brookvalley Dr Elyria OH 44035 Art Adamisin 22454 Fair fax Taylor MI 48180 makes rotary exhaust baffle Another method speed control crankcase pressure on-off pressure system method uses intake throt tle valve either switches fuel feed separate tank releases pressure tank provide fuel suction throttle closed reduced pressure tank serves same purpose fuel meter reducing fuel flow idle Kavan makes throttle pressure-relief valve built body Kavan also includes simple fuel meter help ease transition off pressure Because pressure-relief valve Kavan requires little force operate throttles particularly idle can disadvantage Carrier flying have overcome prob lem using Kavan throttle con junction exhaust restrictor Kavan spring-loaded remain closed after closed first time idle adjustment set give about 12000 rpm exhaust restrictor open ex haust restrictor used control engine speed providing system re quires almost no force operate method using exhaust restrictor speed control suction fuel system pioneered Roberts Van-speed back early days Car rier flying provides reliable simple method speed control good engine response might worth considering Profile Carrier Class II can simple primary system emergency back-up problems leaks develop fuel-meter/exhaust-restrictor systemjust disconnect pressure line drop smaller venturi fly reason intake throttles alone difficult use crankcase pressure systems throttle closes crankcase pressure changes mixture adjustments can become quite critical impossible really low idle brings us external pressure systemsbladders pacifierswhich rely engine pressure source widely used Combat Speed except airplanes have never seen used Carrier photo system appears column simple adjust suc tion system very reliable throttle can throttle built-in fuel meter such Supertigre MAG Perry carburetors Supertigre Perry carbs can bored out slightly increase area addition sides spray bar Supertigre MAG can filed down increase intake area new Perry carbs designed use Perry pump might quite suitable modifica tion bit unusual equipment re quired means closing off fuel line before engine started Combat fliers use large spring-type paper clips exposed fuel line use simple cut-off fits behind engine use Tatone bladders Sig Mfg Co carries well CMI Captains Bladders tYlel fillers visit Combat circles can provide information installa tion operation additional sources materials hope have answered some hows whys pressure fuel systems re lated speed-control methods newcomer Carrier will have idea what available Perhaps experienced modelers have seen something like better present system have system better systems mentioned just different let us hear about Carrier modelers use some rather specialized equipment always readily available corner hobby shop have listed some sources materi als services column have product would useful Carrier modelers let hear information can appear column address 5016 Angelita Ave Dayton OH 45424 WANTED ideas happenings hints/kinks how-to sketches photos news etc Send columnist category concernedat address shown column photo idea printed Model Aviation will pay $5 contributor FF Sport/Kuenz continued page 31 least two firms importing qual ity brown rubber received samples Sterling Models via AMA Hdqrts Vintage Aero Both 1mm X 3mm size appeared same ma terial looks feels much like Pirelli diagonal collander marks compared piece 3mm Pirelli Pirelli averaged 045 thick new rubber 1mm thinner 1mm same length rubber motor new stuff correspondingly lighter Pirelli indicating approximately same density Three single-loop motors tested destruction averaged 80 86 Model Aviation RO KWIK-LINK LOCK IThe tried true Ispring steel NUTS Iwik-Link Ideal control linkage 2 No109.. 75c Aircraft Quality Nylon Insert LOCK NUTSI 1682-56 1693-48 1716-32 1704-40 J l2perset. DU-BRO 20 FLEX-CABLE MOTOR CONTROL O Provides ultamat77 FlexibleSteerAircraftCable control cable assembly1 Brass Threaded Coupler flexible free run1 Threaded Kwik-Link Highly1 Solder-Type Kwik-Link IDEAL FORning adjustable at1 Nylon Sleeve R/C PLANEScontrol hornNo 165$149 .BOATS.CARS 0 TOUGH NYLON LINK SNAPS-ON AND HOLDS TIGHT 2-56 THREADED COUPLER INCL JLL BOLT-ON LINK riivThis 3-piece ball link set No 180 readily adaptable rudder elevator IiIIIIIis must helicopters OOEL boats cars Ball joint action JkUiLJand servo linkage RIC planes oeliminates binding neat and16775 clean appearance OnlV 85 PRODUCTS INCORPORATED 480 Bonner Road Wauconda Illinois 60084 USA turns per inch 106% recommended turns Pirelli 75 per inch being thinner section delivered less power No didnt wind Pirelli destruction put back strongbox limited amount testing Ive done time appears new rubber good stuff its like using slightly smaller sec tion Pirelli some sources obtaining scale information Breguet aircraft Societe Anonyme Avions Marcel Dassault Breguet Aviation Mr Jegura 33 Rue Du Professeur Pauchet 92420 Vaucresson France Hawker aircraft Hawker Siddeley Aviation LTD Richmond Road Kings ton-upon-Thames KT2 505 Surrey Eng land racing aircraft American Air Racing Society PO Box 121 South Euclid Ohio 44121 next installment Ill include plans winding stooge some data typical instrument panels address 14645 Stahelin Detroit Mi 48223 April1976 87 r DU-BRO KWIK-GLO GLO-PLUG CONNECTOR engines 10 & up piece brass barrel snaps plug positive starting 24- 112 long attached battery lugs An excellent accessory todays kind modeler No 147$200 NYLON BELCRANK ASSEMBLY 900 Nylon oBelcrank o Brass Bushing 0 4-40x Bolt Washer Lock Washer oNut 2 per Set INSIST ON THE FINEST Flown indoors out Jumbo Scale ThorpJumbo Spitfire Megow plans Charles T-18 Clarence Mather does 50-55 secondsSchobloher has 50-in wing 16 strands 6-mm rubber Three-blader prop folds impact wings knock off Picture taken Bob Mosher authors 29 Chester Jeep begins take shape Steady favorite Pic Bob Mosher 18 Hawker Spanish Fury lovely project Pres Bruning Photo Bob Mosher