Model climus angie snown Instant launch left-hand turns Turn adjusted mursasing aecreasing built-in left thrust climb less down thrust Insert Reminiscent Waco biplanes Thirties Dakotas generous wing area allows heavier construction Dihedral provides good stability Though purposely heavy avoid fly-aways Dakota should flown areas known strong thermal activity EVEN IF youve modeling short time probably have soft spot m heart special model models may have first fiftieth model some models just turn out special Maybe way flew perhaps classical appearance Whatever case may lingers mind such model Dakota cabin biplane reminiscent old Waco cabins Dakota designed Infant engines emerged post World War II years Construction balsa exception few plywood parts making rugged durable model Designed sport flying little 24-inch span model would put very ac ceptable flights relatively low powered engines day recently acquired kit old de sign went together couple evenings have some changes powerplant design once ade quate 049 has now become far too much power Dakota kit model fitted Cox Pee Wee 020 proved ample power view abundance Cox Baby Bee 049 McCoy 049 engines now retired brief careers plastic readyto-fly control-line models seemed modernized version Dakota would fill need sport free flight model young old alike Scaling up design 25% would result 30-inch wing span Built-up wings attached rubber bands would provide better glide less chance damage rigidly attached sheet wings original Such model should about right power output Baby Bee few evenings later new version ready testing Hand gliding model type reveals little other pro nounced stalling diving tendencies After couple tosses satisfy curios ity engine started tuned allowed run out fuel small amount fuel measured syringe placed tank engine restarted safest power pattern model type left model launched just left wind wanted go right climb too steep Corrections applied next short hop looked great Since field large wind minimal next fuel allowance rather generous ship climbed up quite high until engine quit began gentle spiral down Suddenly wings began rock nose perked up model began ascend strong lift Five minutes later edge field model now just speck sky disappeared view No dethermalizer incorporated design three reasons First wanted simplicity operation design would appeal young inex perienced fliers just getting free flight novice doesnt need hasDecember 1978 53 Comparison original all-wood Dakota updated Northwest Dakota New ship built-up wings efficient glide 25% larger utilize power modern 049s Wings rubber-banded shift damage event hard landings striking obstructions Name address wing may neip muosi iind its way home after fly-awaybut care control ling engine run should avoid difficulty glide angle can adjusted nose tail weight required though suggested favor bit fast glide sle fuse lighting before launch Second ly pop-up tails require accurate keying prevent misalignment resultant trim changes flight flight Thirdly fuses used proper snuffer tube tend fire hazards flying site owners dont understand model air planes anyhow horrified see burning material projecting model So model just flew away Upon arrival home some two hours later i//f F-S /5 BALSA F-S /8 PLY SOFT BLOCK NOTE 3/32 RSHT THRUST I--I P1P2 Modifications adapt eyedropper ian 10 iimit engine runs uox Baby Hee Length surgical fuel tubing links portion plastic disposable hypo syringe original fuel pick-up line Engine tank notched clear fuel line Run bit rich less thrust desired Assembled engine fitted eyedropper tank use eyedropper filled engine started tuned Model launched fuel reaches desired mark Fly length engine run choosebut dont forget check course timina method aood comnetition received phone call local golf pro informed model landed fairway Whew name address model would have lost ever distance flown about three miles possibility loss greatly reduced keeping engine runs short build ing model heavy side course best way control engine run use shut-off timer However timers expensive complicate launch procedure beginners recom mend alternative follow ing Use eyedropper tank shown photos Drill hole side fuel tank may filled partially full Use calibrated syringe measure fuel disposable plastic type needle sold drug stores works great Construction begins wings since needed prepare wing saddles fuselage Wood selection model critical would suggest staying medium weight stock Use lightest wood tail components heaviest nose wings Cut out required ribs called out plan Remember biplane need twice parts appears Cut wing tip sections join splice lines Notch trailing edges ribs easily done taping two hacksaw blades togeth Con tinued page 111 0 LEADING EDGE 1/16 SHT 31BXS/8 TRAIUNG EDGE DIHEDRAL BRACES BB DIHEDRAL IIKI N DIHEDRAL BRACE I/BSHT BALSA BOTH WINGS IDENTICAL PS 3/32 SHT 35 SIft IEL WING RETAINERSI n fl [v32][b-1-10-1-10]]1S IIIISI IIIII--- 3F-4p TOP SHEETING OMIATEDF-6 FOR CLARITY JBLERWINDSHIELD PATTERN 015 ASTIC 1/8 SHT DOUBLER7 5/BX 47/B 0 [ RUDDER TAB II 111/16 SHT CROSSGRAIN HI/B SHT II- -SOFT WIRE HINGES AII II II ___1SHEET SPLICE LINE IIflIIII"0 INCIDENCE II3/3ZSHT IIIII Ii1/8 SHT DOUBLERII II/4X77/B IITRIM TO FlT 0r I1/16 PLY" 3/32 SNT CROSSGRAIN NOTES BALANCE AS SHOWN MODEL CLIMBS TO LEFT B GLIDES TO RIGHT ADJUST OJMB PATTERN WITh MORE ORLESS SIDE ANI/OR DOWN THRUST ADJUST GLIDE TURN WITH RUDDER TAB ADJUST GLIDE ANGLE WITH NOSE OR TAL WEIGHT UNIT ENGINE RUN BYISEASURBIG FUEL 08 WITH TIMER ALL RIBS 3/3SHT LZIZi~ TIP 4 RED LZIHiZiL MAIN 20 REQ CENTER B REQ I/B SHT December1978 55 F-4 B SHT SITIvE INCIDENCE RENCE NORTHWEST DAKOTA ADAPTED FROM DAKOTADESIGN BY CLARENCE NAUGHT FULL-SIZE PLANS AVAILABLE . SEE PAGE 120 SPORT-SCALE FOR 2 AND 3 CHANNEL RIC SYSTEMS Great trainer capability rb sport performance Oeoigred Satn Btuetbetg KIT No1501 CESS3LA 170A beautiful scale model espe cially designed RIG beginner still interest advanced modeler Very stable flight speeds quickly compensates beginner flying errors controls returned neutral Vacuum formed cowl P pre-shaped piece spring aluminum landing gear wood plywocid used stress areas TECHNICAL DATA Scale 11/4 Wing span 45 1143cm area 270 sq in. Length 32 8128cm Wing loading 12 oz per sq ft ht 24 oz RIG equipment Engine 049 051 KIT No 1502 different low-wing scale model offered other kit manufacturers Like Cessna 170 has forgiving na ture valuable novice flyers will also satisfy average RC pro its smooth flight handling characteristics Kit contents include vacuum formed cowl windshield plus hardwood plywood beef up construction required TECHNICAL DATA Scale 1 I/a 1-0 span 42 10859 cm area 252 sq th 28 7303 cm loading 12 oz per sq ft ht 24 oz AC equipment ne 049 051 3G Kits contain motors wheels AtC equipment Both models built easy Guillow way r concise planwork usely illustrated building assembly instructions rustrating guesswork See local Hobby Dealer Goillow kits k Yellow Pages coder HOeeiEs Send 25c coteolete kit listino Officials will Race Directors entire race plus Contest Direc tor accompanying pilot vehicle leg CDs will make sure general intent race rules followed also pilot vehicle does exceed 55 mph posted speed limit timeteams will penallzed addition time fac tor offense event damage aircraft CD will judge whether safe fly able condition CD will also insure pilot flies plane safe manner doesnt anything could endanger people property such flying low over roads landing freeway median areas CDs may changed team another time during leg CDs desiring participate race should submit applications AMA headquarters same time race applicants Radio Equipment Any legal make brand radio operating assigned RC frequencies may used including hams operating amateur band frequencies 27 MHz band will assigned teams because danger interference CB radios along way Large capacity batteries extra battery packs and/or quick chargers may used Dates period race Sep tember 1979 beginning Labor Day weekend allows time advance planning publicity coordination participants police offi cials along way also gives plenty time entrants work planes practice also best times weatherwise Tips Suggestions Six pages help ful hints also questions answers covering details race available AMA HQ 815 15th St NW Washington DC 20005 Write call 202 347-2751 get extra formation plus CD contestant pilot team member entry form Re member dont pay entry fee unless selected early next year Dakota/Ha ug ht continued page 55 er making cutting tool thickness ribs sawing notches proper depth step should omitted considerable strength will lost doing Cover plan clear plastic wax paper pin leading trailing edges place Fit wing tips glue leading trailing edges Place spar proper location install wing ribs being careful use proper size ribs center section install exact center rib time Build two identical wings dry re move wings plan sand leading edges tips proper shape Touch up entire wing sandpaper blending everything smooth surface Cut wings two center bevel edges leading trailing edges proper fit joining dihedral angle best accomplished sanding block Pin half wing bench block up other tip until 5 inches above bench glue securely Precoating ends joined glue allowing dry before final joining will increase strength joint considerably highly recommended Install 1/8 balsa dihedral braces cut center rib sec tions glue place Complete wing assembly planking center section final touch up sanding Cut 3/32 X 3 stock rough shape fuselage sides join upper lower portions indicated sheet splice line Trim final shape install wing mount dou blers cut dimensions shown glued fuselage sides before final shaping Use completed wing pattern shaping lower wing mount sure lower wing has 1/8 positive incidence upper wing has 5/16 positive incidence relation forward fuselage bottom serves base line Stabilizer mounting surface should 0 incidence sure make right left fuselage December1978 111 Cessna 170A lUIWUIUJEqWAApi ELAfl I&4ELi f9 RUDDER PDWER 011 &C* h/ywes P o BOX 2498 MA LA MFSA CALIF 9294 GET ORGANIZED s set 014 stUrdy ties trotds over 4 years ot yas tavorte 8 r II rvragazirses 4 MAG FILES $495 Send $495 ptus $100 postage handtmg DON INO4JSThIES PO BOX 388-K DOVER NH 03820 side Cut install nose doublers taking note left side doubler longer right establish required 3/32 left thrust Also sure 1/8 down thrust built doublers Drill holes wing retaining dowels can still stack fuselage sides together insure alignment Cut out formers F-I F-2 plywood balance balsa F-3 simi lar F-2 shorter Bend landing gear wire attach F-2 J bolts metal clips Join fuselage sides using F-l F-2 F-3 F-4 Lay fuselage upside down wing mount building board check alignment carefully before glue sets Card board triangles helpful checking alignment dry pull fuselage sides together tailpost install remaining formers Sheet bottom 3/32 balsa cross grain sheet top 1/16 balsa crossgrain Sand edges fit fuselage sides Carve nose block upper windshield block soft balsa glue place Add fill-in strips F-2 F3 window cut outs Sand completed fuselage smooth Install landing gear fairings using light cloth aid bonding reinforce ment Tail skid cut plywood glued fuselage bottom Tail surfaces cut light medi um light sheet Sand shape install fuselage making sure stabilizer level rudder straight small rudder tab helpful trimming should hinged soft wire model may finished using favorite iron-on covering wish prefer traditional finishing meth ods After brushing two coats clear butyrate dope structure light sanding between coats remove raised grain wings covered SGM Silkspan sheet portions model Japanese tissue covering wood parts Japanese tissue quite easy done sections laying dry tissue over previously doped dry surface adhering brushing mixture 25% dope 75% thinner directly through tissue strength balsa increased considerably application tissue particularly its resistance abrasion splitting Trim easily applied cutting patterns colored Japanese tissue applied same manner described covering sheeted areas After applying adequate dope pro duce luster surface complete model adding wing retaining dowels wheels windows windshield Install engine number-two sheet-metal screws check balance Add ballast attain center gravity shown slight ly nose heavy Dont try fly tail-heavy model Check wings tail surfaces warps Any warps can easily removed hold ing warped surface over steaming pan boiling water twisting oppo site direction Keep opposite tension surface remove steam hold until cool little experimenting will allow eliminate warps Flight testing begins limited engine runs mentioned earlier Use full power because tests reduced power will have repeated anyhow Use enough wing bands hold wings firmly place tight prevent shifting event crash Launch slightly left wind nose level up slightly model should climb left circles Control rate turn side thrust adding washers under engine mount lugs Control climb angle down thrust less needed Force model climb left glide direction may either right left straight Rudder tab maybe used control glide turn Some modelers prefer climb left against right rudder tab control right glide turn tab Glide angle controlled add ing tail weight too fast nose weight too slow eliminate stalling model doesnt have high performance glide flight will under power effort should expended obtain gentle climb pattern will allow long power flights gaining excessive altitude Northwest Dakota great keep kids busy trimming up latest competition bird boring holes sky RC ship Its fun fly yourself sure put name address FF Sport/Scale/Warner continued page 58 superb flights Jack Moses Jumbo Boulton-Paul Defiant cleaned up event biggies Dennis Normans SK-3 bested field 32 hot Peanuts prompted suggestion bonus points no longer awarded racers Pat Daily Fiat G-50 Mike Midkiff Hellcat first sec ond respectively WW II Combat event also courted Hungs favor duel sun Two-Minute category Don Srull proved himself time time again winning both AMA Rubber Scale Waterman Racer FAC Rubber Scale HE-lOO Heinkel No-Cal profile Scale bested Embryo Endurance event 7-yearold Walt Eggert Jr nudged him out second spot proving Hung has welldeveloped sense humor Don incident ally crowned FAC National Cham pion helped assuage feelings other close action Dennis Norman CFFS bested 28 other Embryos Bill Henn took both first second Shell Speed Dash Mr Smoothie Chambermaid Joe Whiting took Thompson Trophy flying Caudron Mick Nallen outlasted Unlimiteds Druine Turbulent Peanut WW II combatants dropped sky before Gordon Roberts P-S 1 Power Scale event saw Pat Dailys Sopwith Tab loid edge out Fernando Ramos C02 ABC Robin Spectators contestants alike cheered heroic efforts such Dennis Normans twin-engine Tigercat Von Rottensocks AKA Ralph Kuenz A-26 twin-engined rubber ships Tom Nallens Miles M-39 canard Libellula vied John Stotts Mauboussin Ed Heyns Sikorsky SZ quad Srulls SchweizerSchlepp Swiss tar get tug unusual honors Now Hung modelers friend responsible evil befalls models According Flying Aces its mischievous simian sometimes takes shape tightly-wound ball broken rubber rampaging tail hapless model other times may inexplicably bat plane out air other nas ties Hes aptly named Hungorilla definitely evidence taking care Chuck Schoblohers Jumbo Spitfire agonizing crash Hungorilla piloted WW Albatross Jim Daily taking Joe Whitings DH-4 out ac tion ramming him returning unbowed Staffel Joe spiralled down John Stott can attest Hungo rillas ferocity rear motor peg snapped aforesaid creature during fly-off winding against Joe Whitings Caudron giving Joe heat forfeit Ouch banquet following Saturday flying intrepid birdmen made merry exchanged lies listened venerable Bill Brown Brown Jr Campus C02 fame reminisce about Golden Age LLga5O1eer5~ 30s watched films some vintage FAC meets About thing missing epic meet 55Lt General Dave Stott GHQ heart soul sparkplug FAC phenomenon stayed home due wifes illness Bob Thomp son co-editor Flying Aces Club News along Dave filled summed up FAC philosophy present LLWe reason have fun fun fun. Although no plans have another FAC Nats time can hope will hap pen form another sooner later Helmets off FAC guys 112 Model Aviation
Edition: Model Aviation - 1978/12
Page Numbers: 52, 53, 54, 55, 111, 112
Model climus angie snown Instant launch left-hand turns Turn adjusted mursasing aecreasing built-in left thrust climb less down thrust Insert Reminiscent Waco biplanes Thirties Dakotas generous wing area allows heavier construction Dihedral provides good stability Though purposely heavy avoid fly-aways Dakota should flown areas known strong thermal activity EVEN IF youve modeling short time probably have soft spot m heart special model models may have first fiftieth model some models just turn out special Maybe way flew perhaps classical appearance Whatever case may lingers mind such model Dakota cabin biplane reminiscent old Waco cabins Dakota designed Infant engines emerged post World War II years Construction balsa exception few plywood parts making rugged durable model Designed sport flying little 24-inch span model would put very ac ceptable flights relatively low powered engines day recently acquired kit old de sign went together couple evenings have some changes powerplant design once ade quate 049 has now become far too much power Dakota kit model fitted Cox Pee Wee 020 proved ample power view abundance Cox Baby Bee 049 McCoy 049 engines now retired brief careers plastic readyto-fly control-line models seemed modernized version Dakota would fill need sport free flight model young old alike Scaling up design 25% would result 30-inch wing span Built-up wings attached rubber bands would provide better glide less chance damage rigidly attached sheet wings original Such model should about right power output Baby Bee few evenings later new version ready testing Hand gliding model type reveals little other pro nounced stalling diving tendencies After couple tosses satisfy curios ity engine started tuned allowed run out fuel small amount fuel measured syringe placed tank engine restarted safest power pattern model type left model launched just left wind wanted go right climb too steep Corrections applied next short hop looked great Since field large wind minimal next fuel allowance rather generous ship climbed up quite high until engine quit began gentle spiral down Suddenly wings began rock nose perked up model began ascend strong lift Five minutes later edge field model now just speck sky disappeared view No dethermalizer incorporated design three reasons First wanted simplicity operation design would appeal young inex perienced fliers just getting free flight novice doesnt need hasDecember 1978 53 Comparison original all-wood Dakota updated Northwest Dakota New ship built-up wings efficient glide 25% larger utilize power modern 049s Wings rubber-banded shift damage event hard landings striking obstructions Name address wing may neip muosi iind its way home after fly-awaybut care control ling engine run should avoid difficulty glide angle can adjusted nose tail weight required though suggested favor bit fast glide sle fuse lighting before launch Second ly pop-up tails require accurate keying prevent misalignment resultant trim changes flight flight Thirdly fuses used proper snuffer tube tend fire hazards flying site owners dont understand model air planes anyhow horrified see burning material projecting model So model just flew away Upon arrival home some two hours later i//f F-S /5 BALSA F-S /8 PLY SOFT BLOCK NOTE 3/32 RSHT THRUST I--I P1P2 Modifications adapt eyedropper ian 10 iimit engine runs uox Baby Hee Length surgical fuel tubing links portion plastic disposable hypo syringe original fuel pick-up line Engine tank notched clear fuel line Run bit rich less thrust desired Assembled engine fitted eyedropper tank use eyedropper filled engine started tuned Model launched fuel reaches desired mark Fly length engine run choosebut dont forget check course timina method aood comnetition received phone call local golf pro informed model landed fairway Whew name address model would have lost ever distance flown about three miles possibility loss greatly reduced keeping engine runs short build ing model heavy side course best way control engine run use shut-off timer However timers expensive complicate launch procedure beginners recom mend alternative follow ing Use eyedropper tank shown photos Drill hole side fuel tank may filled partially full Use calibrated syringe measure fuel disposable plastic type needle sold drug stores works great Construction begins wings since needed prepare wing saddles fuselage Wood selection model critical would suggest staying medium weight stock Use lightest wood tail components heaviest nose wings Cut out required ribs called out plan Remember biplane need twice parts appears Cut wing tip sections join splice lines Notch trailing edges ribs easily done taping two hacksaw blades togeth Con tinued page 111 0 LEADING EDGE 1/16 SHT 31BXS/8 TRAIUNG EDGE DIHEDRAL BRACES BB DIHEDRAL IIKI N DIHEDRAL BRACE I/BSHT BALSA BOTH WINGS IDENTICAL PS 3/32 SHT 35 SIft IEL WING RETAINERSI n fl [v32][b-1-10-1-10]]1S IIIISI IIIII--- 3F-4p TOP SHEETING OMIATEDF-6 FOR CLARITY JBLERWINDSHIELD PATTERN 015 ASTIC 1/8 SHT DOUBLER7 5/BX 47/B 0 [ RUDDER TAB II 111/16 SHT CROSSGRAIN HI/B SHT II- -SOFT WIRE HINGES AII II II ___1SHEET SPLICE LINE IIflIIII"0 INCIDENCE II3/3ZSHT IIIII Ii1/8 SHT DOUBLERII II/4X77/B IITRIM TO FlT 0r I1/16 PLY" 3/32 SNT CROSSGRAIN NOTES BALANCE AS SHOWN MODEL CLIMBS TO LEFT B GLIDES TO RIGHT ADJUST OJMB PATTERN WITh MORE ORLESS SIDE ANI/OR DOWN THRUST ADJUST GLIDE TURN WITH RUDDER TAB ADJUST GLIDE ANGLE WITH NOSE OR TAL WEIGHT UNIT ENGINE RUN BYISEASURBIG FUEL 08 WITH TIMER ALL RIBS 3/3SHT LZIZi~ TIP 4 RED LZIHiZiL MAIN 20 REQ CENTER B REQ I/B SHT December1978 55 F-4 B SHT SITIvE INCIDENCE RENCE NORTHWEST DAKOTA ADAPTED FROM DAKOTADESIGN BY CLARENCE NAUGHT FULL-SIZE PLANS AVAILABLE . SEE PAGE 120 SPORT-SCALE FOR 2 AND 3 CHANNEL RIC SYSTEMS Great trainer capability rb sport performance Oeoigred Satn Btuetbetg KIT No1501 CESS3LA 170A beautiful scale model espe cially designed RIG beginner still interest advanced modeler Very stable flight speeds quickly compensates beginner flying errors controls returned neutral Vacuum formed cowl P pre-shaped piece spring aluminum landing gear wood plywocid used stress areas TECHNICAL DATA Scale 11/4 Wing span 45 1143cm area 270 sq in. Length 32 8128cm Wing loading 12 oz per sq ft ht 24 oz RIG equipment Engine 049 051 KIT No 1502 different low-wing scale model offered other kit manufacturers Like Cessna 170 has forgiving na ture valuable novice flyers will also satisfy average RC pro its smooth flight handling characteristics Kit contents include vacuum formed cowl windshield plus hardwood plywood beef up construction required TECHNICAL DATA Scale 1 I/a 1-0 span 42 10859 cm area 252 sq th 28 7303 cm loading 12 oz per sq ft ht 24 oz AC equipment ne 049 051 3G Kits contain motors wheels AtC equipment Both models built easy Guillow way r concise planwork usely illustrated building assembly instructions rustrating guesswork See local Hobby Dealer Goillow kits k Yellow Pages coder HOeeiEs Send 25c coteolete kit listino Officials will Race Directors entire race plus Contest Direc tor accompanying pilot vehicle leg CDs will make sure general intent race rules followed also pilot vehicle does exceed 55 mph posted speed limit timeteams will penallzed addition time fac tor offense event damage aircraft CD will judge whether safe fly able condition CD will also insure pilot flies plane safe manner doesnt anything could endanger people property such flying low over roads landing freeway median areas CDs may changed team another time during leg CDs desiring participate race should submit applications AMA headquarters same time race applicants Radio Equipment Any legal make brand radio operating assigned RC frequencies may used including hams operating amateur band frequencies 27 MHz band will assigned teams because danger interference CB radios along way Large capacity batteries extra battery packs and/or quick chargers may used Dates period race Sep tember 1979 beginning Labor Day weekend allows time advance planning publicity coordination participants police offi cials along way also gives plenty time entrants work planes practice also best times weatherwise Tips Suggestions Six pages help ful hints also questions answers covering details race available AMA HQ 815 15th St NW Washington DC 20005 Write call 202 347-2751 get extra formation plus CD contestant pilot team member entry form Re member dont pay entry fee unless selected early next year Dakota/Ha ug ht continued page 55 er making cutting tool thickness ribs sawing notches proper depth step should omitted considerable strength will lost doing Cover plan clear plastic wax paper pin leading trailing edges place Fit wing tips glue leading trailing edges Place spar proper location install wing ribs being careful use proper size ribs center section install exact center rib time Build two identical wings dry re move wings plan sand leading edges tips proper shape Touch up entire wing sandpaper blending everything smooth surface Cut wings two center bevel edges leading trailing edges proper fit joining dihedral angle best accomplished sanding block Pin half wing bench block up other tip until 5 inches above bench glue securely Precoating ends joined glue allowing dry before final joining will increase strength joint considerably highly recommended Install 1/8 balsa dihedral braces cut center rib sec tions glue place Complete wing assembly planking center section final touch up sanding Cut 3/32 X 3 stock rough shape fuselage sides join upper lower portions indicated sheet splice line Trim final shape install wing mount dou blers cut dimensions shown glued fuselage sides before final shaping Use completed wing pattern shaping lower wing mount sure lower wing has 1/8 positive incidence upper wing has 5/16 positive incidence relation forward fuselage bottom serves base line Stabilizer mounting surface should 0 incidence sure make right left fuselage December1978 111 Cessna 170A lUIWUIUJEqWAApi ELAfl I&4ELi f9 RUDDER PDWER 011 &C* h/ywes P o BOX 2498 MA LA MFSA CALIF 9294 GET ORGANIZED s set 014 stUrdy ties trotds over 4 years ot yas tavorte 8 r II rvragazirses 4 MAG FILES $495 Send $495 ptus $100 postage handtmg DON INO4JSThIES PO BOX 388-K DOVER NH 03820 side Cut install nose doublers taking note left side doubler longer right establish required 3/32 left thrust Also sure 1/8 down thrust built doublers Drill holes wing retaining dowels can still stack fuselage sides together insure alignment Cut out formers F-I F-2 plywood balance balsa F-3 simi lar F-2 shorter Bend landing gear wire attach F-2 J bolts metal clips Join fuselage sides using F-l F-2 F-3 F-4 Lay fuselage upside down wing mount building board check alignment carefully before glue sets Card board triangles helpful checking alignment dry pull fuselage sides together tailpost install remaining formers Sheet bottom 3/32 balsa cross grain sheet top 1/16 balsa crossgrain Sand edges fit fuselage sides Carve nose block upper windshield block soft balsa glue place Add fill-in strips F-2 F3 window cut outs Sand completed fuselage smooth Install landing gear fairings using light cloth aid bonding reinforce ment Tail skid cut plywood glued fuselage bottom Tail surfaces cut light medi um light sheet Sand shape install fuselage making sure stabilizer level rudder straight small rudder tab helpful trimming should hinged soft wire model may finished using favorite iron-on covering wish prefer traditional finishing meth ods After brushing two coats clear butyrate dope structure light sanding between coats remove raised grain wings covered SGM Silkspan sheet portions model Japanese tissue covering wood parts Japanese tissue quite easy done sections laying dry tissue over previously doped dry surface adhering brushing mixture 25% dope 75% thinner directly through tissue strength balsa increased considerably application tissue particularly its resistance abrasion splitting Trim easily applied cutting patterns colored Japanese tissue applied same manner described covering sheeted areas After applying adequate dope pro duce luster surface complete model adding wing retaining dowels wheels windows windshield Install engine number-two sheet-metal screws check balance Add ballast attain center gravity shown slight ly nose heavy Dont try fly tail-heavy model Check wings tail surfaces warps Any warps can easily removed hold ing warped surface over steaming pan boiling water twisting oppo site direction Keep opposite tension surface remove steam hold until cool little experimenting will allow eliminate warps Flight testing begins limited engine runs mentioned earlier Use full power because tests reduced power will have repeated anyhow Use enough wing bands hold wings firmly place tight prevent shifting event crash Launch slightly left wind nose level up slightly model should climb left circles Control rate turn side thrust adding washers under engine mount lugs Control climb angle down thrust less needed Force model climb left glide direction may either right left straight Rudder tab maybe used control glide turn Some modelers prefer climb left against right rudder tab control right glide turn tab Glide angle controlled add ing tail weight too fast nose weight too slow eliminate stalling model doesnt have high performance glide flight will under power effort should expended obtain gentle climb pattern will allow long power flights gaining excessive altitude Northwest Dakota great keep kids busy trimming up latest competition bird boring holes sky RC ship Its fun fly yourself sure put name address FF Sport/Scale/Warner continued page 58 superb flights Jack Moses Jumbo Boulton-Paul Defiant cleaned up event biggies Dennis Normans SK-3 bested field 32 hot Peanuts prompted suggestion bonus points no longer awarded racers Pat Daily Fiat G-50 Mike Midkiff Hellcat first sec ond respectively WW II Combat event also courted Hungs favor duel sun Two-Minute category Don Srull proved himself time time again winning both AMA Rubber Scale Waterman Racer FAC Rubber Scale HE-lOO Heinkel No-Cal profile Scale bested Embryo Endurance event 7-yearold Walt Eggert Jr nudged him out second spot proving Hung has welldeveloped sense humor Don incident ally crowned FAC National Cham pion helped assuage feelings other close action Dennis Norman CFFS bested 28 other Embryos Bill Henn took both first second Shell Speed Dash Mr Smoothie Chambermaid Joe Whiting took Thompson Trophy flying Caudron Mick Nallen outlasted Unlimiteds Druine Turbulent Peanut WW II combatants dropped sky before Gordon Roberts P-S 1 Power Scale event saw Pat Dailys Sopwith Tab loid edge out Fernando Ramos C02 ABC Robin Spectators contestants alike cheered heroic efforts such Dennis Normans twin-engine Tigercat Von Rottensocks AKA Ralph Kuenz A-26 twin-engined rubber ships Tom Nallens Miles M-39 canard Libellula vied John Stotts Mauboussin Ed Heyns Sikorsky SZ quad Srulls SchweizerSchlepp Swiss tar get tug unusual honors Now Hung modelers friend responsible evil befalls models According Flying Aces its mischievous simian sometimes takes shape tightly-wound ball broken rubber rampaging tail hapless model other times may inexplicably bat plane out air other nas ties Hes aptly named Hungorilla definitely evidence taking care Chuck Schoblohers Jumbo Spitfire agonizing crash Hungorilla piloted WW Albatross Jim Daily taking Joe Whitings DH-4 out ac tion ramming him returning unbowed Staffel Joe spiralled down John Stott can attest Hungo rillas ferocity rear motor peg snapped aforesaid creature during fly-off winding against Joe Whitings Caudron giving Joe heat forfeit Ouch banquet following Saturday flying intrepid birdmen made merry exchanged lies listened venerable Bill Brown Brown Jr Campus C02 fame reminisce about Golden Age LLga5O1eer5~ 30s watched films some vintage FAC meets About thing missing epic meet 55Lt General Dave Stott GHQ heart soul sparkplug FAC phenomenon stayed home due wifes illness Bob Thomp son co-editor Flying Aces Club News along Dave filled summed up FAC philosophy present LLWe reason have fun fun fun. Although no plans have another FAC Nats time can hope will hap pen form another sooner later Helmets off FAC guys 112 Model Aviation
Edition: Model Aviation - 1978/12
Page Numbers: 52, 53, 54, 55, 111, 112
Model climus angie snown Instant launch left-hand turns Turn adjusted mursasing aecreasing built-in left thrust climb less down thrust Insert Reminiscent Waco biplanes Thirties Dakotas generous wing area allows heavier construction Dihedral provides good stability Though purposely heavy avoid fly-aways Dakota should flown areas known strong thermal activity EVEN IF youve modeling short time probably have soft spot m heart special model models may have first fiftieth model some models just turn out special Maybe way flew perhaps classical appearance Whatever case may lingers mind such model Dakota cabin biplane reminiscent old Waco cabins Dakota designed Infant engines emerged post World War II years Construction balsa exception few plywood parts making rugged durable model Designed sport flying little 24-inch span model would put very ac ceptable flights relatively low powered engines day recently acquired kit old de sign went together couple evenings have some changes powerplant design once ade quate 049 has now become far too much power Dakota kit model fitted Cox Pee Wee 020 proved ample power view abundance Cox Baby Bee 049 McCoy 049 engines now retired brief careers plastic readyto-fly control-line models seemed modernized version Dakota would fill need sport free flight model young old alike Scaling up design 25% would result 30-inch wing span Built-up wings attached rubber bands would provide better glide less chance damage rigidly attached sheet wings original Such model should about right power output Baby Bee few evenings later new version ready testing Hand gliding model type reveals little other pro nounced stalling diving tendencies After couple tosses satisfy curios ity engine started tuned allowed run out fuel small amount fuel measured syringe placed tank engine restarted safest power pattern model type left model launched just left wind wanted go right climb too steep Corrections applied next short hop looked great Since field large wind minimal next fuel allowance rather generous ship climbed up quite high until engine quit began gentle spiral down Suddenly wings began rock nose perked up model began ascend strong lift Five minutes later edge field model now just speck sky disappeared view No dethermalizer incorporated design three reasons First wanted simplicity operation design would appeal young inex perienced fliers just getting free flight novice doesnt need hasDecember 1978 53 Comparison original all-wood Dakota updated Northwest Dakota New ship built-up wings efficient glide 25% larger utilize power modern 049s Wings rubber-banded shift damage event hard landings striking obstructions Name address wing may neip muosi iind its way home after fly-awaybut care control ling engine run should avoid difficulty glide angle can adjusted nose tail weight required though suggested favor bit fast glide sle fuse lighting before launch Second ly pop-up tails require accurate keying prevent misalignment resultant trim changes flight flight Thirdly fuses used proper snuffer tube tend fire hazards flying site owners dont understand model air planes anyhow horrified see burning material projecting model So model just flew away Upon arrival home some two hours later i//f F-S /5 BALSA F-S /8 PLY SOFT BLOCK NOTE 3/32 RSHT THRUST I--I P1P2 Modifications adapt eyedropper ian 10 iimit engine runs uox Baby Hee Length surgical fuel tubing links portion plastic disposable hypo syringe original fuel pick-up line Engine tank notched clear fuel line Run bit rich less thrust desired Assembled engine fitted eyedropper tank use eyedropper filled engine started tuned Model launched fuel reaches desired mark Fly length engine run choosebut dont forget check course timina method aood comnetition received phone call local golf pro informed model landed fairway Whew name address model would have lost ever distance flown about three miles possibility loss greatly reduced keeping engine runs short build ing model heavy side course best way control engine run use shut-off timer However timers expensive complicate launch procedure beginners recom mend alternative follow ing Use eyedropper tank shown photos Drill hole side fuel tank may filled partially full Use calibrated syringe measure fuel disposable plastic type needle sold drug stores works great Construction begins wings since needed prepare wing saddles fuselage Wood selection model critical would suggest staying medium weight stock Use lightest wood tail components heaviest nose wings Cut out required ribs called out plan Remember biplane need twice parts appears Cut wing tip sections join splice lines Notch trailing edges ribs easily done taping two hacksaw blades togeth Con tinued page 111 0 LEADING EDGE 1/16 SHT 31BXS/8 TRAIUNG EDGE DIHEDRAL BRACES BB DIHEDRAL IIKI N DIHEDRAL BRACE I/BSHT BALSA BOTH WINGS IDENTICAL PS 3/32 SHT 35 SIft IEL WING RETAINERSI n fl [v32][b-1-10-1-10]]1S IIIISI IIIII--- 3F-4p TOP SHEETING OMIATEDF-6 FOR CLARITY JBLERWINDSHIELD PATTERN 015 ASTIC 1/8 SHT DOUBLER7 5/BX 47/B 0 [ RUDDER TAB II 111/16 SHT CROSSGRAIN HI/B SHT II- -SOFT WIRE HINGES AII II II ___1SHEET SPLICE LINE IIflIIII"0 INCIDENCE II3/3ZSHT IIIII Ii1/8 SHT DOUBLERII II/4X77/B IITRIM TO FlT 0r I1/16 PLY" 3/32 SNT CROSSGRAIN NOTES BALANCE AS SHOWN MODEL CLIMBS TO LEFT B GLIDES TO RIGHT ADJUST OJMB PATTERN WITh MORE ORLESS SIDE ANI/OR DOWN THRUST ADJUST GLIDE TURN WITH RUDDER TAB ADJUST GLIDE ANGLE WITH NOSE OR TAL WEIGHT UNIT ENGINE RUN BYISEASURBIG FUEL 08 WITH TIMER ALL RIBS 3/3SHT LZIZi~ TIP 4 RED LZIHiZiL MAIN 20 REQ CENTER B REQ I/B SHT December1978 55 F-4 B SHT SITIvE INCIDENCE RENCE NORTHWEST DAKOTA ADAPTED FROM DAKOTADESIGN BY CLARENCE NAUGHT FULL-SIZE PLANS AVAILABLE . SEE PAGE 120 SPORT-SCALE FOR 2 AND 3 CHANNEL RIC SYSTEMS Great trainer capability rb sport performance Oeoigred Satn Btuetbetg KIT No1501 CESS3LA 170A beautiful scale model espe cially designed RIG beginner still interest advanced modeler Very stable flight speeds quickly compensates beginner flying errors controls returned neutral Vacuum formed cowl P pre-shaped piece spring aluminum landing gear wood plywocid used stress areas TECHNICAL DATA Scale 11/4 Wing span 45 1143cm area 270 sq in. Length 32 8128cm Wing loading 12 oz per sq ft ht 24 oz RIG equipment Engine 049 051 KIT No 1502 different low-wing scale model offered other kit manufacturers Like Cessna 170 has forgiving na ture valuable novice flyers will also satisfy average RC pro its smooth flight handling characteristics Kit contents include vacuum formed cowl windshield plus hardwood plywood beef up construction required TECHNICAL DATA Scale 1 I/a 1-0 span 42 10859 cm area 252 sq th 28 7303 cm loading 12 oz per sq ft ht 24 oz AC equipment ne 049 051 3G Kits contain motors wheels AtC equipment Both models built easy Guillow way r concise planwork usely illustrated building assembly instructions rustrating guesswork See local Hobby Dealer Goillow kits k Yellow Pages coder HOeeiEs Send 25c coteolete kit listino Officials will Race Directors entire race plus Contest Direc tor accompanying pilot vehicle leg CDs will make sure general intent race rules followed also pilot vehicle does exceed 55 mph posted speed limit timeteams will penallzed addition time fac tor offense event damage aircraft CD will judge whether safe fly able condition CD will also insure pilot flies plane safe manner doesnt anything could endanger people property such flying low over roads landing freeway median areas CDs may changed team another time during leg CDs desiring participate race should submit applications AMA headquarters same time race applicants Radio Equipment Any legal make brand radio operating assigned RC frequencies may used including hams operating amateur band frequencies 27 MHz band will assigned teams because danger interference CB radios along way Large capacity batteries extra battery packs and/or quick chargers may used Dates period race Sep tember 1979 beginning Labor Day weekend allows time advance planning publicity coordination participants police offi cials along way also gives plenty time entrants work planes practice also best times weatherwise Tips Suggestions Six pages help ful hints also questions answers covering details race available AMA HQ 815 15th St NW Washington DC 20005 Write call 202 347-2751 get extra formation plus CD contestant pilot team member entry form Re member dont pay entry fee unless selected early next year Dakota/Ha ug ht continued page 55 er making cutting tool thickness ribs sawing notches proper depth step should omitted considerable strength will lost doing Cover plan clear plastic wax paper pin leading trailing edges place Fit wing tips glue leading trailing edges Place spar proper location install wing ribs being careful use proper size ribs center section install exact center rib time Build two identical wings dry re move wings plan sand leading edges tips proper shape Touch up entire wing sandpaper blending everything smooth surface Cut wings two center bevel edges leading trailing edges proper fit joining dihedral angle best accomplished sanding block Pin half wing bench block up other tip until 5 inches above bench glue securely Precoating ends joined glue allowing dry before final joining will increase strength joint considerably highly recommended Install 1/8 balsa dihedral braces cut center rib sec tions glue place Complete wing assembly planking center section final touch up sanding Cut 3/32 X 3 stock rough shape fuselage sides join upper lower portions indicated sheet splice line Trim final shape install wing mount dou blers cut dimensions shown glued fuselage sides before final shaping Use completed wing pattern shaping lower wing mount sure lower wing has 1/8 positive incidence upper wing has 5/16 positive incidence relation forward fuselage bottom serves base line Stabilizer mounting surface should 0 incidence sure make right left fuselage December1978 111 Cessna 170A lUIWUIUJEqWAApi ELAfl I&4ELi f9 RUDDER PDWER 011 &C* h/ywes P o BOX 2498 MA LA MFSA CALIF 9294 GET ORGANIZED s set 014 stUrdy ties trotds over 4 years ot yas tavorte 8 r II rvragazirses 4 MAG FILES $495 Send $495 ptus $100 postage handtmg DON INO4JSThIES PO BOX 388-K DOVER NH 03820 side Cut install nose doublers taking note left side doubler longer right establish required 3/32 left thrust Also sure 1/8 down thrust built doublers Drill holes wing retaining dowels can still stack fuselage sides together insure alignment Cut out formers F-I F-2 plywood balance balsa F-3 simi lar F-2 shorter Bend landing gear wire attach F-2 J bolts metal clips Join fuselage sides using F-l F-2 F-3 F-4 Lay fuselage upside down wing mount building board check alignment carefully before glue sets Card board triangles helpful checking alignment dry pull fuselage sides together tailpost install remaining formers Sheet bottom 3/32 balsa cross grain sheet top 1/16 balsa crossgrain Sand edges fit fuselage sides Carve nose block upper windshield block soft balsa glue place Add fill-in strips F-2 F3 window cut outs Sand completed fuselage smooth Install landing gear fairings using light cloth aid bonding reinforce ment Tail skid cut plywood glued fuselage bottom Tail surfaces cut light medi um light sheet Sand shape install fuselage making sure stabilizer level rudder straight small rudder tab helpful trimming should hinged soft wire model may finished using favorite iron-on covering wish prefer traditional finishing meth ods After brushing two coats clear butyrate dope structure light sanding between coats remove raised grain wings covered SGM Silkspan sheet portions model Japanese tissue covering wood parts Japanese tissue quite easy done sections laying dry tissue over previously doped dry surface adhering brushing mixture 25% dope 75% thinner directly through tissue strength balsa increased considerably application tissue particularly its resistance abrasion splitting Trim easily applied cutting patterns colored Japanese tissue applied same manner described covering sheeted areas After applying adequate dope pro duce luster surface complete model adding wing retaining dowels wheels windows windshield Install engine number-two sheet-metal screws check balance Add ballast attain center gravity shown slight ly nose heavy Dont try fly tail-heavy model Check wings tail surfaces warps Any warps can easily removed hold ing warped surface over steaming pan boiling water twisting oppo site direction Keep opposite tension surface remove steam hold until cool little experimenting will allow eliminate warps Flight testing begins limited engine runs mentioned earlier Use full power because tests reduced power will have repeated anyhow Use enough wing bands hold wings firmly place tight prevent shifting event crash Launch slightly left wind nose level up slightly model should climb left circles Control rate turn side thrust adding washers under engine mount lugs Control climb angle down thrust less needed Force model climb left glide direction may either right left straight Rudder tab maybe used control glide turn Some modelers prefer climb left against right rudder tab control right glide turn tab Glide angle controlled add ing tail weight too fast nose weight too slow eliminate stalling model doesnt have high performance glide flight will under power effort should expended obtain gentle climb pattern will allow long power flights gaining excessive altitude Northwest Dakota great keep kids busy trimming up latest competition bird boring holes sky RC ship Its fun fly yourself sure put name address FF Sport/Scale/Warner continued page 58 superb flights Jack Moses Jumbo Boulton-Paul Defiant cleaned up event biggies Dennis Normans SK-3 bested field 32 hot Peanuts prompted suggestion bonus points no longer awarded racers Pat Daily Fiat G-50 Mike Midkiff Hellcat first sec ond respectively WW II Combat event also courted Hungs favor duel sun Two-Minute category Don Srull proved himself time time again winning both AMA Rubber Scale Waterman Racer FAC Rubber Scale HE-lOO Heinkel No-Cal profile Scale bested Embryo Endurance event 7-yearold Walt Eggert Jr nudged him out second spot proving Hung has welldeveloped sense humor Don incident ally crowned FAC National Cham pion helped assuage feelings other close action Dennis Norman CFFS bested 28 other Embryos Bill Henn took both first second Shell Speed Dash Mr Smoothie Chambermaid Joe Whiting took Thompson Trophy flying Caudron Mick Nallen outlasted Unlimiteds Druine Turbulent Peanut WW II combatants dropped sky before Gordon Roberts P-S 1 Power Scale event saw Pat Dailys Sopwith Tab loid edge out Fernando Ramos C02 ABC Robin Spectators contestants alike cheered heroic efforts such Dennis Normans twin-engine Tigercat Von Rottensocks AKA Ralph Kuenz A-26 twin-engined rubber ships Tom Nallens Miles M-39 canard Libellula vied John Stotts Mauboussin Ed Heyns Sikorsky SZ quad Srulls SchweizerSchlepp Swiss tar get tug unusual honors Now Hung modelers friend responsible evil befalls models According Flying Aces its mischievous simian sometimes takes shape tightly-wound ball broken rubber rampaging tail hapless model other times may inexplicably bat plane out air other nas ties Hes aptly named Hungorilla definitely evidence taking care Chuck Schoblohers Jumbo Spitfire agonizing crash Hungorilla piloted WW Albatross Jim Daily taking Joe Whitings DH-4 out ac tion ramming him returning unbowed Staffel Joe spiralled down John Stott can attest Hungo rillas ferocity rear motor peg snapped aforesaid creature during fly-off winding against Joe Whitings Caudron giving Joe heat forfeit Ouch banquet following Saturday flying intrepid birdmen made merry exchanged lies listened venerable Bill Brown Brown Jr Campus C02 fame reminisce about Golden Age LLga5O1eer5~ 30s watched films some vintage FAC meets About thing missing epic meet 55Lt General Dave Stott GHQ heart soul sparkplug FAC phenomenon stayed home due wifes illness Bob Thomp son co-editor Flying Aces Club News along Dave filled summed up FAC philosophy present LLWe reason have fun fun fun. Although no plans have another FAC Nats time can hope will hap pen form another sooner later Helmets off FAC guys 112 Model Aviation
Edition: Model Aviation - 1978/12
Page Numbers: 52, 53, 54, 55, 111, 112
Model climus angie snown Instant launch left-hand turns Turn adjusted mursasing aecreasing built-in left thrust climb less down thrust Insert Reminiscent Waco biplanes Thirties Dakotas generous wing area allows heavier construction Dihedral provides good stability Though purposely heavy avoid fly-aways Dakota should flown areas known strong thermal activity EVEN IF youve modeling short time probably have soft spot m heart special model models may have first fiftieth model some models just turn out special Maybe way flew perhaps classical appearance Whatever case may lingers mind such model Dakota cabin biplane reminiscent old Waco cabins Dakota designed Infant engines emerged post World War II years Construction balsa exception few plywood parts making rugged durable model Designed sport flying little 24-inch span model would put very ac ceptable flights relatively low powered engines day recently acquired kit old de sign went together couple evenings have some changes powerplant design once ade quate 049 has now become far too much power Dakota kit model fitted Cox Pee Wee 020 proved ample power view abundance Cox Baby Bee 049 McCoy 049 engines now retired brief careers plastic readyto-fly control-line models seemed modernized version Dakota would fill need sport free flight model young old alike Scaling up design 25% would result 30-inch wing span Built-up wings attached rubber bands would provide better glide less chance damage rigidly attached sheet wings original Such model should about right power output Baby Bee few evenings later new version ready testing Hand gliding model type reveals little other pro nounced stalling diving tendencies After couple tosses satisfy curios ity engine started tuned allowed run out fuel small amount fuel measured syringe placed tank engine restarted safest power pattern model type left model launched just left wind wanted go right climb too steep Corrections applied next short hop looked great Since field large wind minimal next fuel allowance rather generous ship climbed up quite high until engine quit began gentle spiral down Suddenly wings began rock nose perked up model began ascend strong lift Five minutes later edge field model now just speck sky disappeared view No dethermalizer incorporated design three reasons First wanted simplicity operation design would appeal young inex perienced fliers just getting free flight novice doesnt need hasDecember 1978 53 Comparison original all-wood Dakota updated Northwest Dakota New ship built-up wings efficient glide 25% larger utilize power modern 049s Wings rubber-banded shift damage event hard landings striking obstructions Name address wing may neip muosi iind its way home after fly-awaybut care control ling engine run should avoid difficulty glide angle can adjusted nose tail weight required though suggested favor bit fast glide sle fuse lighting before launch Second ly pop-up tails require accurate keying prevent misalignment resultant trim changes flight flight Thirdly fuses used proper snuffer tube tend fire hazards flying site owners dont understand model air planes anyhow horrified see burning material projecting model So model just flew away Upon arrival home some two hours later i//f F-S /5 BALSA F-S /8 PLY SOFT BLOCK NOTE 3/32 RSHT THRUST I--I P1P2 Modifications adapt eyedropper ian 10 iimit engine runs uox Baby Hee Length surgical fuel tubing links portion plastic disposable hypo syringe original fuel pick-up line Engine tank notched clear fuel line Run bit rich less thrust desired Assembled engine fitted eyedropper tank use eyedropper filled engine started tuned Model launched fuel reaches desired mark Fly length engine run choosebut dont forget check course timina method aood comnetition received phone call local golf pro informed model landed fairway Whew name address model would have lost ever distance flown about three miles possibility loss greatly reduced keeping engine runs short build ing model heavy side course best way control engine run use shut-off timer However timers expensive complicate launch procedure beginners recom mend alternative follow ing Use eyedropper tank shown photos Drill hole side fuel tank may filled partially full Use calibrated syringe measure fuel disposable plastic type needle sold drug stores works great Construction begins wings since needed prepare wing saddles fuselage Wood selection model critical would suggest staying medium weight stock Use lightest wood tail components heaviest nose wings Cut out required ribs called out plan Remember biplane need twice parts appears Cut wing tip sections join splice lines Notch trailing edges ribs easily done taping two hacksaw blades togeth Con tinued page 111 0 LEADING EDGE 1/16 SHT 31BXS/8 TRAIUNG EDGE DIHEDRAL BRACES BB DIHEDRAL IIKI N DIHEDRAL BRACE I/BSHT BALSA BOTH WINGS IDENTICAL PS 3/32 SHT 35 SIft IEL WING RETAINERSI n fl [v32][b-1-10-1-10]]1S IIIISI IIIII--- 3F-4p TOP SHEETING OMIATEDF-6 FOR CLARITY JBLERWINDSHIELD PATTERN 015 ASTIC 1/8 SHT DOUBLER7 5/BX 47/B 0 [ RUDDER TAB II 111/16 SHT CROSSGRAIN HI/B SHT II- -SOFT WIRE HINGES AII II II ___1SHEET SPLICE LINE IIflIIII"0 INCIDENCE II3/3ZSHT IIIII Ii1/8 SHT DOUBLERII II/4X77/B IITRIM TO FlT 0r I1/16 PLY" 3/32 SNT CROSSGRAIN NOTES BALANCE AS SHOWN MODEL CLIMBS TO LEFT B GLIDES TO RIGHT ADJUST OJMB PATTERN WITh MORE ORLESS SIDE ANI/OR DOWN THRUST ADJUST GLIDE TURN WITH RUDDER TAB ADJUST GLIDE ANGLE WITH NOSE OR TAL WEIGHT UNIT ENGINE RUN BYISEASURBIG FUEL 08 WITH TIMER ALL RIBS 3/3SHT LZIZi~ TIP 4 RED LZIHiZiL MAIN 20 REQ CENTER B REQ I/B SHT December1978 55 F-4 B SHT SITIvE INCIDENCE RENCE NORTHWEST DAKOTA ADAPTED FROM DAKOTADESIGN BY CLARENCE NAUGHT FULL-SIZE PLANS AVAILABLE . SEE PAGE 120 SPORT-SCALE FOR 2 AND 3 CHANNEL RIC SYSTEMS Great trainer capability rb sport performance Oeoigred Satn Btuetbetg KIT No1501 CESS3LA 170A beautiful scale model espe cially designed RIG beginner still interest advanced modeler Very stable flight speeds quickly compensates beginner flying errors controls returned neutral Vacuum formed cowl P pre-shaped piece spring aluminum landing gear wood plywocid used stress areas TECHNICAL DATA Scale 11/4 Wing span 45 1143cm area 270 sq in. Length 32 8128cm Wing loading 12 oz per sq ft ht 24 oz RIG equipment Engine 049 051 KIT No 1502 different low-wing scale model offered other kit manufacturers Like Cessna 170 has forgiving na ture valuable novice flyers will also satisfy average RC pro its smooth flight handling characteristics Kit contents include vacuum formed cowl windshield plus hardwood plywood beef up construction required TECHNICAL DATA Scale 1 I/a 1-0 span 42 10859 cm area 252 sq th 28 7303 cm loading 12 oz per sq ft ht 24 oz AC equipment ne 049 051 3G Kits contain motors wheels AtC equipment Both models built easy Guillow way r concise planwork usely illustrated building assembly instructions rustrating guesswork See local Hobby Dealer Goillow kits k Yellow Pages coder HOeeiEs Send 25c coteolete kit listino Officials will Race Directors entire race plus Contest Direc tor accompanying pilot vehicle leg CDs will make sure general intent race rules followed also pilot vehicle does exceed 55 mph posted speed limit timeteams will penallzed addition time fac tor offense event damage aircraft CD will judge whether safe fly able condition CD will also insure pilot flies plane safe manner doesnt anything could endanger people property such flying low over roads landing freeway median areas CDs may changed team another time during leg CDs desiring participate race should submit applications AMA headquarters same time race applicants Radio Equipment Any legal make brand radio operating assigned RC frequencies may used including hams operating amateur band frequencies 27 MHz band will assigned teams because danger interference CB radios along way Large capacity batteries extra battery packs and/or quick chargers may used Dates period race Sep tember 1979 beginning Labor Day weekend allows time advance planning publicity coordination participants police offi cials along way also gives plenty time entrants work planes practice also best times weatherwise Tips Suggestions Six pages help ful hints also questions answers covering details race available AMA HQ 815 15th St NW Washington DC 20005 Write call 202 347-2751 get extra formation plus CD contestant pilot team member entry form Re member dont pay entry fee unless selected early next year Dakota/Ha ug ht continued page 55 er making cutting tool thickness ribs sawing notches proper depth step should omitted considerable strength will lost doing Cover plan clear plastic wax paper pin leading trailing edges place Fit wing tips glue leading trailing edges Place spar proper location install wing ribs being careful use proper size ribs center section install exact center rib time Build two identical wings dry re move wings plan sand leading edges tips proper shape Touch up entire wing sandpaper blending everything smooth surface Cut wings two center bevel edges leading trailing edges proper fit joining dihedral angle best accomplished sanding block Pin half wing bench block up other tip until 5 inches above bench glue securely Precoating ends joined glue allowing dry before final joining will increase strength joint considerably highly recommended Install 1/8 balsa dihedral braces cut center rib sec tions glue place Complete wing assembly planking center section final touch up sanding Cut 3/32 X 3 stock rough shape fuselage sides join upper lower portions indicated sheet splice line Trim final shape install wing mount dou blers cut dimensions shown glued fuselage sides before final shaping Use completed wing pattern shaping lower wing mount sure lower wing has 1/8 positive incidence upper wing has 5/16 positive incidence relation forward fuselage bottom serves base line Stabilizer mounting surface should 0 incidence sure make right left fuselage December1978 111 Cessna 170A lUIWUIUJEqWAApi ELAfl I&4ELi f9 RUDDER PDWER 011 &C* h/ywes P o BOX 2498 MA LA MFSA CALIF 9294 GET ORGANIZED s set 014 stUrdy ties trotds over 4 years ot yas tavorte 8 r II rvragazirses 4 MAG FILES $495 Send $495 ptus $100 postage handtmg DON INO4JSThIES PO BOX 388-K DOVER NH 03820 side Cut install nose doublers taking note left side doubler longer right establish required 3/32 left thrust Also sure 1/8 down thrust built doublers Drill holes wing retaining dowels can still stack fuselage sides together insure alignment Cut out formers F-I F-2 plywood balance balsa F-3 simi lar F-2 shorter Bend landing gear wire attach F-2 J bolts metal clips Join fuselage sides using F-l F-2 F-3 F-4 Lay fuselage upside down wing mount building board check alignment carefully before glue sets Card board triangles helpful checking alignment dry pull fuselage sides together tailpost install remaining formers Sheet bottom 3/32 balsa cross grain sheet top 1/16 balsa crossgrain Sand edges fit fuselage sides Carve nose block upper windshield block soft balsa glue place Add fill-in strips F-2 F3 window cut outs Sand completed fuselage smooth Install landing gear fairings using light cloth aid bonding reinforce ment Tail skid cut plywood glued fuselage bottom Tail surfaces cut light medi um light sheet Sand shape install fuselage making sure stabilizer level rudder straight small rudder tab helpful trimming should hinged soft wire model may finished using favorite iron-on covering wish prefer traditional finishing meth ods After brushing two coats clear butyrate dope structure light sanding between coats remove raised grain wings covered SGM Silkspan sheet portions model Japanese tissue covering wood parts Japanese tissue quite easy done sections laying dry tissue over previously doped dry surface adhering brushing mixture 25% dope 75% thinner directly through tissue strength balsa increased considerably application tissue particularly its resistance abrasion splitting Trim easily applied cutting patterns colored Japanese tissue applied same manner described covering sheeted areas After applying adequate dope pro duce luster surface complete model adding wing retaining dowels wheels windows windshield Install engine number-two sheet-metal screws check balance Add ballast attain center gravity shown slight ly nose heavy Dont try fly tail-heavy model Check wings tail surfaces warps Any warps can easily removed hold ing warped surface over steaming pan boiling water twisting oppo site direction Keep opposite tension surface remove steam hold until cool little experimenting will allow eliminate warps Flight testing begins limited engine runs mentioned earlier Use full power because tests reduced power will have repeated anyhow Use enough wing bands hold wings firmly place tight prevent shifting event crash Launch slightly left wind nose level up slightly model should climb left circles Control rate turn side thrust adding washers under engine mount lugs Control climb angle down thrust less needed Force model climb left glide direction may either right left straight Rudder tab maybe used control glide turn Some modelers prefer climb left against right rudder tab control right glide turn tab Glide angle controlled add ing tail weight too fast nose weight too slow eliminate stalling model doesnt have high performance glide flight will under power effort should expended obtain gentle climb pattern will allow long power flights gaining excessive altitude Northwest Dakota great keep kids busy trimming up latest competition bird boring holes sky RC ship Its fun fly yourself sure put name address FF Sport/Scale/Warner continued page 58 superb flights Jack Moses Jumbo Boulton-Paul Defiant cleaned up event biggies Dennis Normans SK-3 bested field 32 hot Peanuts prompted suggestion bonus points no longer awarded racers Pat Daily Fiat G-50 Mike Midkiff Hellcat first sec ond respectively WW II Combat event also courted Hungs favor duel sun Two-Minute category Don Srull proved himself time time again winning both AMA Rubber Scale Waterman Racer FAC Rubber Scale HE-lOO Heinkel No-Cal profile Scale bested Embryo Endurance event 7-yearold Walt Eggert Jr nudged him out second spot proving Hung has welldeveloped sense humor Don incident ally crowned FAC National Cham pion helped assuage feelings other close action Dennis Norman CFFS bested 28 other Embryos Bill Henn took both first second Shell Speed Dash Mr Smoothie Chambermaid Joe Whiting took Thompson Trophy flying Caudron Mick Nallen outlasted Unlimiteds Druine Turbulent Peanut WW II combatants dropped sky before Gordon Roberts P-S 1 Power Scale event saw Pat Dailys Sopwith Tab loid edge out Fernando Ramos C02 ABC Robin Spectators contestants alike cheered heroic efforts such Dennis Normans twin-engine Tigercat Von Rottensocks AKA Ralph Kuenz A-26 twin-engined rubber ships Tom Nallens Miles M-39 canard Libellula vied John Stotts Mauboussin Ed Heyns Sikorsky SZ quad Srulls SchweizerSchlepp Swiss tar get tug unusual honors Now Hung modelers friend responsible evil befalls models According Flying Aces its mischievous simian sometimes takes shape tightly-wound ball broken rubber rampaging tail hapless model other times may inexplicably bat plane out air other nas ties Hes aptly named Hungorilla definitely evidence taking care Chuck Schoblohers Jumbo Spitfire agonizing crash Hungorilla piloted WW Albatross Jim Daily taking Joe Whitings DH-4 out ac tion ramming him returning unbowed Staffel Joe spiralled down John Stott can attest Hungo rillas ferocity rear motor peg snapped aforesaid creature during fly-off winding against Joe Whitings Caudron giving Joe heat forfeit Ouch banquet following Saturday flying intrepid birdmen made merry exchanged lies listened venerable Bill Brown Brown Jr Campus C02 fame reminisce about Golden Age LLga5O1eer5~ 30s watched films some vintage FAC meets About thing missing epic meet 55Lt General Dave Stott GHQ heart soul sparkplug FAC phenomenon stayed home due wifes illness Bob Thomp son co-editor Flying Aces Club News along Dave filled summed up FAC philosophy present LLWe reason have fun fun fun. Although no plans have another FAC Nats time can hope will hap pen form another sooner later Helmets off FAC guys 112 Model Aviation
Edition: Model Aviation - 1978/12
Page Numbers: 52, 53, 54, 55, 111, 112
Model climus angie snown Instant launch left-hand turns Turn adjusted mursasing aecreasing built-in left thrust climb less down thrust Insert Reminiscent Waco biplanes Thirties Dakotas generous wing area allows heavier construction Dihedral provides good stability Though purposely heavy avoid fly-aways Dakota should flown areas known strong thermal activity EVEN IF youve modeling short time probably have soft spot m heart special model models may have first fiftieth model some models just turn out special Maybe way flew perhaps classical appearance Whatever case may lingers mind such model Dakota cabin biplane reminiscent old Waco cabins Dakota designed Infant engines emerged post World War II years Construction balsa exception few plywood parts making rugged durable model Designed sport flying little 24-inch span model would put very ac ceptable flights relatively low powered engines day recently acquired kit old de sign went together couple evenings have some changes powerplant design once ade quate 049 has now become far too much power Dakota kit model fitted Cox Pee Wee 020 proved ample power view abundance Cox Baby Bee 049 McCoy 049 engines now retired brief careers plastic readyto-fly control-line models seemed modernized version Dakota would fill need sport free flight model young old alike Scaling up design 25% would result 30-inch wing span Built-up wings attached rubber bands would provide better glide less chance damage rigidly attached sheet wings original Such model should about right power output Baby Bee few evenings later new version ready testing Hand gliding model type reveals little other pro nounced stalling diving tendencies After couple tosses satisfy curios ity engine started tuned allowed run out fuel small amount fuel measured syringe placed tank engine restarted safest power pattern model type left model launched just left wind wanted go right climb too steep Corrections applied next short hop looked great Since field large wind minimal next fuel allowance rather generous ship climbed up quite high until engine quit began gentle spiral down Suddenly wings began rock nose perked up model began ascend strong lift Five minutes later edge field model now just speck sky disappeared view No dethermalizer incorporated design three reasons First wanted simplicity operation design would appeal young inex perienced fliers just getting free flight novice doesnt need hasDecember 1978 53 Comparison original all-wood Dakota updated Northwest Dakota New ship built-up wings efficient glide 25% larger utilize power modern 049s Wings rubber-banded shift damage event hard landings striking obstructions Name address wing may neip muosi iind its way home after fly-awaybut care control ling engine run should avoid difficulty glide angle can adjusted nose tail weight required though suggested favor bit fast glide sle fuse lighting before launch Second ly pop-up tails require accurate keying prevent misalignment resultant trim changes flight flight Thirdly fuses used proper snuffer tube tend fire hazards flying site owners dont understand model air planes anyhow horrified see burning material projecting model So model just flew away Upon arrival home some two hours later i//f F-S /5 BALSA F-S /8 PLY SOFT BLOCK NOTE 3/32 RSHT THRUST I--I P1P2 Modifications adapt eyedropper ian 10 iimit engine runs uox Baby Hee Length surgical fuel tubing links portion plastic disposable hypo syringe original fuel pick-up line Engine tank notched clear fuel line Run bit rich less thrust desired Assembled engine fitted eyedropper tank use eyedropper filled engine started tuned Model launched fuel reaches desired mark Fly length engine run choosebut dont forget check course timina method aood comnetition received phone call local golf pro informed model landed fairway Whew name address model would have lost ever distance flown about three miles possibility loss greatly reduced keeping engine runs short build ing model heavy side course best way control engine run use shut-off timer However timers expensive complicate launch procedure beginners recom mend alternative follow ing Use eyedropper tank shown photos Drill hole side fuel tank may filled partially full Use calibrated syringe measure fuel disposable plastic type needle sold drug stores works great Construction begins wings since needed prepare wing saddles fuselage Wood selection model critical would suggest staying medium weight stock Use lightest wood tail components heaviest nose wings Cut out required ribs called out plan Remember biplane need twice parts appears Cut wing tip sections join splice lines Notch trailing edges ribs easily done taping two hacksaw blades togeth Con tinued page 111 0 LEADING EDGE 1/16 SHT 31BXS/8 TRAIUNG EDGE DIHEDRAL BRACES BB DIHEDRAL IIKI N DIHEDRAL BRACE I/BSHT BALSA BOTH WINGS IDENTICAL PS 3/32 SHT 35 SIft IEL WING RETAINERSI n fl [v32][b-1-10-1-10]]1S IIIISI IIIII--- 3F-4p TOP SHEETING OMIATEDF-6 FOR CLARITY JBLERWINDSHIELD PATTERN 015 ASTIC 1/8 SHT DOUBLER7 5/BX 47/B 0 [ RUDDER TAB II 111/16 SHT CROSSGRAIN HI/B SHT II- -SOFT WIRE HINGES AII II II ___1SHEET SPLICE LINE IIflIIII"0 INCIDENCE II3/3ZSHT IIIII Ii1/8 SHT DOUBLERII II/4X77/B IITRIM TO FlT 0r I1/16 PLY" 3/32 SNT CROSSGRAIN NOTES BALANCE AS SHOWN MODEL CLIMBS TO LEFT B GLIDES TO RIGHT ADJUST OJMB PATTERN WITh MORE ORLESS SIDE ANI/OR DOWN THRUST ADJUST GLIDE TURN WITH RUDDER TAB ADJUST GLIDE ANGLE WITH NOSE OR TAL WEIGHT UNIT ENGINE RUN BYISEASURBIG FUEL 08 WITH TIMER ALL RIBS 3/3SHT LZIZi~ TIP 4 RED LZIHiZiL MAIN 20 REQ CENTER B REQ I/B SHT December1978 55 F-4 B SHT SITIvE INCIDENCE RENCE NORTHWEST DAKOTA ADAPTED FROM DAKOTADESIGN BY CLARENCE NAUGHT FULL-SIZE PLANS AVAILABLE . SEE PAGE 120 SPORT-SCALE FOR 2 AND 3 CHANNEL RIC SYSTEMS Great trainer capability rb sport performance Oeoigred Satn Btuetbetg KIT No1501 CESS3LA 170A beautiful scale model espe cially designed RIG beginner still interest advanced modeler Very stable flight speeds quickly compensates beginner flying errors controls returned neutral Vacuum formed cowl P pre-shaped piece spring aluminum landing gear wood plywocid used stress areas TECHNICAL DATA Scale 11/4 Wing span 45 1143cm area 270 sq in. Length 32 8128cm Wing loading 12 oz per sq ft ht 24 oz RIG equipment Engine 049 051 KIT No 1502 different low-wing scale model offered other kit manufacturers Like Cessna 170 has forgiving na ture valuable novice flyers will also satisfy average RC pro its smooth flight handling characteristics Kit contents include vacuum formed cowl windshield plus hardwood plywood beef up construction required TECHNICAL DATA Scale 1 I/a 1-0 span 42 10859 cm area 252 sq th 28 7303 cm loading 12 oz per sq ft ht 24 oz AC equipment ne 049 051 3G Kits contain motors wheels AtC equipment Both models built easy Guillow way r concise planwork usely illustrated building assembly instructions rustrating guesswork See local Hobby Dealer Goillow kits k Yellow Pages coder HOeeiEs Send 25c coteolete kit listino Officials will Race Directors entire race plus Contest Direc tor accompanying pilot vehicle leg CDs will make sure general intent race rules followed also pilot vehicle does exceed 55 mph posted speed limit timeteams will penallzed addition time fac tor offense event damage aircraft CD will judge whether safe fly able condition CD will also insure pilot flies plane safe manner doesnt anything could endanger people property such flying low over roads landing freeway median areas CDs may changed team another time during leg CDs desiring participate race should submit applications AMA headquarters same time race applicants Radio Equipment Any legal make brand radio operating assigned RC frequencies may used including hams operating amateur band frequencies 27 MHz band will assigned teams because danger interference CB radios along way Large capacity batteries extra battery packs and/or quick chargers may used Dates period race Sep tember 1979 beginning Labor Day weekend allows time advance planning publicity coordination participants police offi cials along way also gives plenty time entrants work planes practice also best times weatherwise Tips Suggestions Six pages help ful hints also questions answers covering details race available AMA HQ 815 15th St NW Washington DC 20005 Write call 202 347-2751 get extra formation plus CD contestant pilot team member entry form Re member dont pay entry fee unless selected early next year Dakota/Ha ug ht continued page 55 er making cutting tool thickness ribs sawing notches proper depth step should omitted considerable strength will lost doing Cover plan clear plastic wax paper pin leading trailing edges place Fit wing tips glue leading trailing edges Place spar proper location install wing ribs being careful use proper size ribs center section install exact center rib time Build two identical wings dry re move wings plan sand leading edges tips proper shape Touch up entire wing sandpaper blending everything smooth surface Cut wings two center bevel edges leading trailing edges proper fit joining dihedral angle best accomplished sanding block Pin half wing bench block up other tip until 5 inches above bench glue securely Precoating ends joined glue allowing dry before final joining will increase strength joint considerably highly recommended Install 1/8 balsa dihedral braces cut center rib sec tions glue place Complete wing assembly planking center section final touch up sanding Cut 3/32 X 3 stock rough shape fuselage sides join upper lower portions indicated sheet splice line Trim final shape install wing mount dou blers cut dimensions shown glued fuselage sides before final shaping Use completed wing pattern shaping lower wing mount sure lower wing has 1/8 positive incidence upper wing has 5/16 positive incidence relation forward fuselage bottom serves base line Stabilizer mounting surface should 0 incidence sure make right left fuselage December1978 111 Cessna 170A lUIWUIUJEqWAApi ELAfl I&4ELi f9 RUDDER PDWER 011 &C* h/ywes P o BOX 2498 MA LA MFSA CALIF 9294 GET ORGANIZED s set 014 stUrdy ties trotds over 4 years ot yas tavorte 8 r II rvragazirses 4 MAG FILES $495 Send $495 ptus $100 postage handtmg DON INO4JSThIES PO BOX 388-K DOVER NH 03820 side Cut install nose doublers taking note left side doubler longer right establish required 3/32 left thrust Also sure 1/8 down thrust built doublers Drill holes wing retaining dowels can still stack fuselage sides together insure alignment Cut out formers F-I F-2 plywood balance balsa F-3 simi lar F-2 shorter Bend landing gear wire attach F-2 J bolts metal clips Join fuselage sides using F-l F-2 F-3 F-4 Lay fuselage upside down wing mount building board check alignment carefully before glue sets Card board triangles helpful checking alignment dry pull fuselage sides together tailpost install remaining formers Sheet bottom 3/32 balsa cross grain sheet top 1/16 balsa crossgrain Sand edges fit fuselage sides Carve nose block upper windshield block soft balsa glue place Add fill-in strips F-2 F3 window cut outs Sand completed fuselage smooth Install landing gear fairings using light cloth aid bonding reinforce ment Tail skid cut plywood glued fuselage bottom Tail surfaces cut light medi um light sheet Sand shape install fuselage making sure stabilizer level rudder straight small rudder tab helpful trimming should hinged soft wire model may finished using favorite iron-on covering wish prefer traditional finishing meth ods After brushing two coats clear butyrate dope structure light sanding between coats remove raised grain wings covered SGM Silkspan sheet portions model Japanese tissue covering wood parts Japanese tissue quite easy done sections laying dry tissue over previously doped dry surface adhering brushing mixture 25% dope 75% thinner directly through tissue strength balsa increased considerably application tissue particularly its resistance abrasion splitting Trim easily applied cutting patterns colored Japanese tissue applied same manner described covering sheeted areas After applying adequate dope pro duce luster surface complete model adding wing retaining dowels wheels windows windshield Install engine number-two sheet-metal screws check balance Add ballast attain center gravity shown slight ly nose heavy Dont try fly tail-heavy model Check wings tail surfaces warps Any warps can easily removed hold ing warped surface over steaming pan boiling water twisting oppo site direction Keep opposite tension surface remove steam hold until cool little experimenting will allow eliminate warps Flight testing begins limited engine runs mentioned earlier Use full power because tests reduced power will have repeated anyhow Use enough wing bands hold wings firmly place tight prevent shifting event crash Launch slightly left wind nose level up slightly model should climb left circles Control rate turn side thrust adding washers under engine mount lugs Control climb angle down thrust less needed Force model climb left glide direction may either right left straight Rudder tab maybe used control glide turn Some modelers prefer climb left against right rudder tab control right glide turn tab Glide angle controlled add ing tail weight too fast nose weight too slow eliminate stalling model doesnt have high performance glide flight will under power effort should expended obtain gentle climb pattern will allow long power flights gaining excessive altitude Northwest Dakota great keep kids busy trimming up latest competition bird boring holes sky RC ship Its fun fly yourself sure put name address FF Sport/Scale/Warner continued page 58 superb flights Jack Moses Jumbo Boulton-Paul Defiant cleaned up event biggies Dennis Normans SK-3 bested field 32 hot Peanuts prompted suggestion bonus points no longer awarded racers Pat Daily Fiat G-50 Mike Midkiff Hellcat first sec ond respectively WW II Combat event also courted Hungs favor duel sun Two-Minute category Don Srull proved himself time time again winning both AMA Rubber Scale Waterman Racer FAC Rubber Scale HE-lOO Heinkel No-Cal profile Scale bested Embryo Endurance event 7-yearold Walt Eggert Jr nudged him out second spot proving Hung has welldeveloped sense humor Don incident ally crowned FAC National Cham pion helped assuage feelings other close action Dennis Norman CFFS bested 28 other Embryos Bill Henn took both first second Shell Speed Dash Mr Smoothie Chambermaid Joe Whiting took Thompson Trophy flying Caudron Mick Nallen outlasted Unlimiteds Druine Turbulent Peanut WW II combatants dropped sky before Gordon Roberts P-S 1 Power Scale event saw Pat Dailys Sopwith Tab loid edge out Fernando Ramos C02 ABC Robin Spectators contestants alike cheered heroic efforts such Dennis Normans twin-engine Tigercat Von Rottensocks AKA Ralph Kuenz A-26 twin-engined rubber ships Tom Nallens Miles M-39 canard Libellula vied John Stotts Mauboussin Ed Heyns Sikorsky SZ quad Srulls SchweizerSchlepp Swiss tar get tug unusual honors Now Hung modelers friend responsible evil befalls models According Flying Aces its mischievous simian sometimes takes shape tightly-wound ball broken rubber rampaging tail hapless model other times may inexplicably bat plane out air other nas ties Hes aptly named Hungorilla definitely evidence taking care Chuck Schoblohers Jumbo Spitfire agonizing crash Hungorilla piloted WW Albatross Jim Daily taking Joe Whitings DH-4 out ac tion ramming him returning unbowed Staffel Joe spiralled down John Stott can attest Hungo rillas ferocity rear motor peg snapped aforesaid creature during fly-off winding against Joe Whitings Caudron giving Joe heat forfeit Ouch banquet following Saturday flying intrepid birdmen made merry exchanged lies listened venerable Bill Brown Brown Jr Campus C02 fame reminisce about Golden Age LLga5O1eer5~ 30s watched films some vintage FAC meets About thing missing epic meet 55Lt General Dave Stott GHQ heart soul sparkplug FAC phenomenon stayed home due wifes illness Bob Thomp son co-editor Flying Aces Club News along Dave filled summed up FAC philosophy present LLWe reason have fun fun fun. Although no plans have another FAC Nats time can hope will hap pen form another sooner later Helmets off FAC guys 112 Model Aviation
Edition: Model Aviation - 1978/12
Page Numbers: 52, 53, 54, 55, 111, 112
Model climus angie snown Instant launch left-hand turns Turn adjusted mursasing aecreasing built-in left thrust climb less down thrust Insert Reminiscent Waco biplanes Thirties Dakotas generous wing area allows heavier construction Dihedral provides good stability Though purposely heavy avoid fly-aways Dakota should flown areas known strong thermal activity EVEN IF youve modeling short time probably have soft spot m heart special model models may have first fiftieth model some models just turn out special Maybe way flew perhaps classical appearance Whatever case may lingers mind such model Dakota cabin biplane reminiscent old Waco cabins Dakota designed Infant engines emerged post World War II years Construction balsa exception few plywood parts making rugged durable model Designed sport flying little 24-inch span model would put very ac ceptable flights relatively low powered engines day recently acquired kit old de sign went together couple evenings have some changes powerplant design once ade quate 049 has now become far too much power Dakota kit model fitted Cox Pee Wee 020 proved ample power view abundance Cox Baby Bee 049 McCoy 049 engines now retired brief careers plastic readyto-fly control-line models seemed modernized version Dakota would fill need sport free flight model young old alike Scaling up design 25% would result 30-inch wing span Built-up wings attached rubber bands would provide better glide less chance damage rigidly attached sheet wings original Such model should about right power output Baby Bee few evenings later new version ready testing Hand gliding model type reveals little other pro nounced stalling diving tendencies After couple tosses satisfy curios ity engine started tuned allowed run out fuel small amount fuel measured syringe placed tank engine restarted safest power pattern model type left model launched just left wind wanted go right climb too steep Corrections applied next short hop looked great Since field large wind minimal next fuel allowance rather generous ship climbed up quite high until engine quit began gentle spiral down Suddenly wings began rock nose perked up model began ascend strong lift Five minutes later edge field model now just speck sky disappeared view No dethermalizer incorporated design three reasons First wanted simplicity operation design would appeal young inex perienced fliers just getting free flight novice doesnt need hasDecember 1978 53 Comparison original all-wood Dakota updated Northwest Dakota New ship built-up wings efficient glide 25% larger utilize power modern 049s Wings rubber-banded shift damage event hard landings striking obstructions Name address wing may neip muosi iind its way home after fly-awaybut care control ling engine run should avoid difficulty glide angle can adjusted nose tail weight required though suggested favor bit fast glide sle fuse lighting before launch Second ly pop-up tails require accurate keying prevent misalignment resultant trim changes flight flight Thirdly fuses used proper snuffer tube tend fire hazards flying site owners dont understand model air planes anyhow horrified see burning material projecting model So model just flew away Upon arrival home some two hours later i//f F-S /5 BALSA F-S /8 PLY SOFT BLOCK NOTE 3/32 RSHT THRUST I--I P1P2 Modifications adapt eyedropper ian 10 iimit engine runs uox Baby Hee Length surgical fuel tubing links portion plastic disposable hypo syringe original fuel pick-up line Engine tank notched clear fuel line Run bit rich less thrust desired Assembled engine fitted eyedropper tank use eyedropper filled engine started tuned Model launched fuel reaches desired mark Fly length engine run choosebut dont forget check course timina method aood comnetition received phone call local golf pro informed model landed fairway Whew name address model would have lost ever distance flown about three miles possibility loss greatly reduced keeping engine runs short build ing model heavy side course best way control engine run use shut-off timer However timers expensive complicate launch procedure beginners recom mend alternative follow ing Use eyedropper tank shown photos Drill hole side fuel tank may filled partially full Use calibrated syringe measure fuel disposable plastic type needle sold drug stores works great Construction begins wings since needed prepare wing saddles fuselage Wood selection model critical would suggest staying medium weight stock Use lightest wood tail components heaviest nose wings Cut out required ribs called out plan Remember biplane need twice parts appears Cut wing tip sections join splice lines Notch trailing edges ribs easily done taping two hacksaw blades togeth Con tinued page 111 0 LEADING EDGE 1/16 SHT 31BXS/8 TRAIUNG EDGE DIHEDRAL BRACES BB DIHEDRAL IIKI N DIHEDRAL BRACE I/BSHT BALSA BOTH WINGS IDENTICAL PS 3/32 SHT 35 SIft IEL WING RETAINERSI n fl [v32][b-1-10-1-10]]1S IIIISI IIIII--- 3F-4p TOP SHEETING OMIATEDF-6 FOR CLARITY JBLERWINDSHIELD PATTERN 015 ASTIC 1/8 SHT DOUBLER7 5/BX 47/B 0 [ RUDDER TAB II 111/16 SHT CROSSGRAIN HI/B SHT II- -SOFT WIRE HINGES AII II II ___1SHEET SPLICE LINE IIflIIII"0 INCIDENCE II3/3ZSHT IIIII Ii1/8 SHT DOUBLERII II/4X77/B IITRIM TO FlT 0r I1/16 PLY" 3/32 SNT CROSSGRAIN NOTES BALANCE AS SHOWN MODEL CLIMBS TO LEFT B GLIDES TO RIGHT ADJUST OJMB PATTERN WITh MORE ORLESS SIDE ANI/OR DOWN THRUST ADJUST GLIDE TURN WITH RUDDER TAB ADJUST GLIDE ANGLE WITH NOSE OR TAL WEIGHT UNIT ENGINE RUN BYISEASURBIG FUEL 08 WITH TIMER ALL RIBS 3/3SHT LZIZi~ TIP 4 RED LZIHiZiL MAIN 20 REQ CENTER B REQ I/B SHT December1978 55 F-4 B SHT SITIvE INCIDENCE RENCE NORTHWEST DAKOTA ADAPTED FROM DAKOTADESIGN BY CLARENCE NAUGHT FULL-SIZE PLANS AVAILABLE . SEE PAGE 120 SPORT-SCALE FOR 2 AND 3 CHANNEL RIC SYSTEMS Great trainer capability rb sport performance Oeoigred Satn Btuetbetg KIT No1501 CESS3LA 170A beautiful scale model espe cially designed RIG beginner still interest advanced modeler Very stable flight speeds quickly compensates beginner flying errors controls returned neutral Vacuum formed cowl P pre-shaped piece spring aluminum landing gear wood plywocid used stress areas TECHNICAL DATA Scale 11/4 Wing span 45 1143cm area 270 sq in. Length 32 8128cm Wing loading 12 oz per sq ft ht 24 oz RIG equipment Engine 049 051 KIT No 1502 different low-wing scale model offered other kit manufacturers Like Cessna 170 has forgiving na ture valuable novice flyers will also satisfy average RC pro its smooth flight handling characteristics Kit contents include vacuum formed cowl windshield plus hardwood plywood beef up construction required TECHNICAL DATA Scale 1 I/a 1-0 span 42 10859 cm area 252 sq th 28 7303 cm loading 12 oz per sq ft ht 24 oz AC equipment ne 049 051 3G Kits contain motors wheels AtC equipment Both models built easy Guillow way r concise planwork usely illustrated building assembly instructions rustrating guesswork See local Hobby Dealer Goillow kits k Yellow Pages coder HOeeiEs Send 25c coteolete kit listino Officials will Race Directors entire race plus Contest Direc tor accompanying pilot vehicle leg CDs will make sure general intent race rules followed also pilot vehicle does exceed 55 mph posted speed limit timeteams will penallzed addition time fac tor offense event damage aircraft CD will judge whether safe fly able condition CD will also insure pilot flies plane safe manner doesnt anything could endanger people property such flying low over roads landing freeway median areas CDs may changed team another time during leg CDs desiring participate race should submit applications AMA headquarters same time race applicants Radio Equipment Any legal make brand radio operating assigned RC frequencies may used including hams operating amateur band frequencies 27 MHz band will assigned teams because danger interference CB radios along way Large capacity batteries extra battery packs and/or quick chargers may used Dates period race Sep tember 1979 beginning Labor Day weekend allows time advance planning publicity coordination participants police offi cials along way also gives plenty time entrants work planes practice also best times weatherwise Tips Suggestions Six pages help ful hints also questions answers covering details race available AMA HQ 815 15th St NW Washington DC 20005 Write call 202 347-2751 get extra formation plus CD contestant pilot team member entry form Re member dont pay entry fee unless selected early next year Dakota/Ha ug ht continued page 55 er making cutting tool thickness ribs sawing notches proper depth step should omitted considerable strength will lost doing Cover plan clear plastic wax paper pin leading trailing edges place Fit wing tips glue leading trailing edges Place spar proper location install wing ribs being careful use proper size ribs center section install exact center rib time Build two identical wings dry re move wings plan sand leading edges tips proper shape Touch up entire wing sandpaper blending everything smooth surface Cut wings two center bevel edges leading trailing edges proper fit joining dihedral angle best accomplished sanding block Pin half wing bench block up other tip until 5 inches above bench glue securely Precoating ends joined glue allowing dry before final joining will increase strength joint considerably highly recommended Install 1/8 balsa dihedral braces cut center rib sec tions glue place Complete wing assembly planking center section final touch up sanding Cut 3/32 X 3 stock rough shape fuselage sides join upper lower portions indicated sheet splice line Trim final shape install wing mount dou blers cut dimensions shown glued fuselage sides before final shaping Use completed wing pattern shaping lower wing mount sure lower wing has 1/8 positive incidence upper wing has 5/16 positive incidence relation forward fuselage bottom serves base line Stabilizer mounting surface should 0 incidence sure make right left fuselage December1978 111 Cessna 170A lUIWUIUJEqWAApi ELAfl I&4ELi f9 RUDDER PDWER 011 &C* h/ywes P o BOX 2498 MA LA MFSA CALIF 9294 GET ORGANIZED s set 014 stUrdy ties trotds over 4 years ot yas tavorte 8 r II rvragazirses 4 MAG FILES $495 Send $495 ptus $100 postage handtmg DON INO4JSThIES PO BOX 388-K DOVER NH 03820 side Cut install nose doublers taking note left side doubler longer right establish required 3/32 left thrust Also sure 1/8 down thrust built doublers Drill holes wing retaining dowels can still stack fuselage sides together insure alignment Cut out formers F-I F-2 plywood balance balsa F-3 simi lar F-2 shorter Bend landing gear wire attach F-2 J bolts metal clips Join fuselage sides using F-l F-2 F-3 F-4 Lay fuselage upside down wing mount building board check alignment carefully before glue sets Card board triangles helpful checking alignment dry pull fuselage sides together tailpost install remaining formers Sheet bottom 3/32 balsa cross grain sheet top 1/16 balsa crossgrain Sand edges fit fuselage sides Carve nose block upper windshield block soft balsa glue place Add fill-in strips F-2 F3 window cut outs Sand completed fuselage smooth Install landing gear fairings using light cloth aid bonding reinforce ment Tail skid cut plywood glued fuselage bottom Tail surfaces cut light medi um light sheet Sand shape install fuselage making sure stabilizer level rudder straight small rudder tab helpful trimming should hinged soft wire model may finished using favorite iron-on covering wish prefer traditional finishing meth ods After brushing two coats clear butyrate dope structure light sanding between coats remove raised grain wings covered SGM Silkspan sheet portions model Japanese tissue covering wood parts Japanese tissue quite easy done sections laying dry tissue over previously doped dry surface adhering brushing mixture 25% dope 75% thinner directly through tissue strength balsa increased considerably application tissue particularly its resistance abrasion splitting Trim easily applied cutting patterns colored Japanese tissue applied same manner described covering sheeted areas After applying adequate dope pro duce luster surface complete model adding wing retaining dowels wheels windows windshield Install engine number-two sheet-metal screws check balance Add ballast attain center gravity shown slight ly nose heavy Dont try fly tail-heavy model Check wings tail surfaces warps Any warps can easily removed hold ing warped surface over steaming pan boiling water twisting oppo site direction Keep opposite tension surface remove steam hold until cool little experimenting will allow eliminate warps Flight testing begins limited engine runs mentioned earlier Use full power because tests reduced power will have repeated anyhow Use enough wing bands hold wings firmly place tight prevent shifting event crash Launch slightly left wind nose level up slightly model should climb left circles Control rate turn side thrust adding washers under engine mount lugs Control climb angle down thrust less needed Force model climb left glide direction may either right left straight Rudder tab maybe used control glide turn Some modelers prefer climb left against right rudder tab control right glide turn tab Glide angle controlled add ing tail weight too fast nose weight too slow eliminate stalling model doesnt have high performance glide flight will under power effort should expended obtain gentle climb pattern will allow long power flights gaining excessive altitude Northwest Dakota great keep kids busy trimming up latest competition bird boring holes sky RC ship Its fun fly yourself sure put name address FF Sport/Scale/Warner continued page 58 superb flights Jack Moses Jumbo Boulton-Paul Defiant cleaned up event biggies Dennis Normans SK-3 bested field 32 hot Peanuts prompted suggestion bonus points no longer awarded racers Pat Daily Fiat G-50 Mike Midkiff Hellcat first sec ond respectively WW II Combat event also courted Hungs favor duel sun Two-Minute category Don Srull proved himself time time again winning both AMA Rubber Scale Waterman Racer FAC Rubber Scale HE-lOO Heinkel No-Cal profile Scale bested Embryo Endurance event 7-yearold Walt Eggert Jr nudged him out second spot proving Hung has welldeveloped sense humor Don incident ally crowned FAC National Cham pion helped assuage feelings other close action Dennis Norman CFFS bested 28 other Embryos Bill Henn took both first second Shell Speed Dash Mr Smoothie Chambermaid Joe Whiting took Thompson Trophy flying Caudron Mick Nallen outlasted Unlimiteds Druine Turbulent Peanut WW II combatants dropped sky before Gordon Roberts P-S 1 Power Scale event saw Pat Dailys Sopwith Tab loid edge out Fernando Ramos C02 ABC Robin Spectators contestants alike cheered heroic efforts such Dennis Normans twin-engine Tigercat Von Rottensocks AKA Ralph Kuenz A-26 twin-engined rubber ships Tom Nallens Miles M-39 canard Libellula vied John Stotts Mauboussin Ed Heyns Sikorsky SZ quad Srulls SchweizerSchlepp Swiss tar get tug unusual honors Now Hung modelers friend responsible evil befalls models According Flying Aces its mischievous simian sometimes takes shape tightly-wound ball broken rubber rampaging tail hapless model other times may inexplicably bat plane out air other nas ties Hes aptly named Hungorilla definitely evidence taking care Chuck Schoblohers Jumbo Spitfire agonizing crash Hungorilla piloted WW Albatross Jim Daily taking Joe Whitings DH-4 out ac tion ramming him returning unbowed Staffel Joe spiralled down John Stott can attest Hungo rillas ferocity rear motor peg snapped aforesaid creature during fly-off winding against Joe Whitings Caudron giving Joe heat forfeit Ouch banquet following Saturday flying intrepid birdmen made merry exchanged lies listened venerable Bill Brown Brown Jr Campus C02 fame reminisce about Golden Age LLga5O1eer5~ 30s watched films some vintage FAC meets About thing missing epic meet 55Lt General Dave Stott GHQ heart soul sparkplug FAC phenomenon stayed home due wifes illness Bob Thomp son co-editor Flying Aces Club News along Dave filled summed up FAC philosophy present LLWe reason have fun fun fun. Although no plans have another FAC Nats time can hope will hap pen form another sooner later Helmets off FAC guys 112 Model Aviation