DESPITE lengthy two-month series trim ming couple other related items should touch First off lets look engine speed lap times have run engine fast two-cycle ground get plane complete pattern probably need some engine rework use tachometers usually set engines 8000-rpm range ground have set engine much faster ground will no doubt experience some sagging engine difficult maneuvers instance 60/62-foot lines 5-second lap pretty fast probably means engine two cycling time lap times 56 60 engine probably running little rich may have power maneuvers unless have very powerful engine assuming running 11- 12inch prop 5 7 pitch good round figure lap time 52 55 seconds means plane going about 48mph 61-foot lines 55 sec/lap 50 seconds would 522 mph 60 would 435 mph Doesnt seem like much difference can certainly feel dif ference handle Another variable can experiment flying-line length 35 size engine plane probably want lines 56 60 feet length 40 engine can go anywhere 58 65 feet depending upon engine horsepower size airplane per sonal preference feel different line lengths instance HP4O Max 4OFSR can handle lines up 65 feet However general rule line lengths over 64 feet usually choice better fliers ST46s 45s line lengths 60 65 feet speaking measurements am referring length line handle end flying line counting inboard wing length Also am talking about stranded lines solids As shorten line length will speed up plane instance shortening line length foot 61 60 feet will increase speed about 0838 mph much differ ence youre concentrating should able tell difference maneuvers Short ening line length will cause better positive control down until lines too short plane will start jerky over responsive figures will look cramped have heavy plane might try flying little longer lines keep plane L0flg B competition flier Rolianu InU59Qu powersnglne 57-in span ship features i-beam c,druction nu weighs 52 02 photos hv tha nuthor 50 Model Aviation Larry Robertsons Revolution powers SB%inshipwithanST4ewithegosqinofwing area weighs 56 02 Nice color scheme using Randolph paint Dummy pilot iooksat home Cr10 1u510m-maae muwier bertsons plane provides .. . aruong Continued page 11 7 muffler made aluminum bar stock Concept borrows speed model practice Mike Gretz Box 162 Montezuma IA 50171 CL Navy Carrier/Perry continued page 49 clarification arrested landing definitions scale bonus points Profile CLCB will voting rules about month Sep tember 1 care about event owe yourself let CLCB representative know feelings Carrier issues up voting definitely favor scale-like Profile models case havent already reached conclusion reading previous columns Ive tried give equal time worthy non-scale models welL such model Bill Reynolds Tuborg H pictured month Bill top Profile fliers Daytons Buzzin Buzzards club Tuborg II uses flaps ailerons its 310sq-in wing has fixed leadouts stab although smaller Profile models has long moment arm quite adequate well-balanced model Rectangular wing planform minimum fuselages models like Tuborg II allow simplified light weight construction potential improved performance over heavier scale-like Profiles Bill uses ne Supertigre ST 35 engine has standard Profile Carrier quite previous discussions converting exist ing sport CL kits scale-like Profile models Ive never mentioned details establish proper outlines fuselage tail wing tips must often modified after kit selected provide proper wing shape match prototype Although accuratelyscaled outlines great require some effort develop sometimes dont look exactly right because flat fuselages Profile models Roger Edwards suggestion sketch outlines regard accuracy dimensions make adjustments neces sary until drawing looks right method artistic technicalis easy yet still provides realism desired model month have yet another obscure carrier prototype Handley Page model HP-21 US Navy HPS-l delivered 1923 proto type shipboard fighter Its advanced design consisted plywood wings fuselage much attention streamlining clean mono plane unusual era externally-braced fabric-covered biplanes could reach 145 mph 230 hp Its significant feature wing carried full-span flaps leading edge slats allowed landing speed 44 mph spite its design features Navy cancelled its order HPS- 1 after receiving first aircraft no others built Richard L Perry 5016 Angelita Ave Day ton OH 45424 reed about Model Aviation writing advertisers mention banging around corners allowing time recover speed between corners intersections within maneuver should help smooth out overall flight plane Lengthening lines will slow plane down will give room maneuvers should help smooth out flight plane starting out trim plane itis good idea make up three sets lines instance 35 size airplane try 58- 595- 605-foot lines Remember turns out shorter length best can cut longer ones size wing has pronounced warp wish remove best method Ive seen wrap wing cloth towels hot possible damp Keeping sharp lookout paint starts get loose starts lift block wing warp over-compensated about 14 let dry take towels off before blocking up should spring place after thorough ly drying come out about right Dont expect first soaking work perfectly may have repeat process after observing plane level flight wing high low flap tweaking doesnt work flaps wont bend danger breaking flap horn need put small tab wing flap made balsa tin can stock aluminum may want slit trailing edge wing flap insert tab soit looks pretty much built Remember can wonders performance airplane changing September1979 117 hardens neat possible tiymg get CL Aerobatics/Paul epoxy over ouside tubing continued page 50 airplane Some glue bound ooze out tubing permanently putinplace can easily wiped completely off clean rag soaked alcohoL squeeze bottle methyl alcoholas used giow fuelis always workbench comes handily situations like Rubbing alcohol will work just well Keep cards letters coming nanole anu iines iviore une spacing handle can speed up plane turning Likewise decreasing line separation handle like adding noseweight Al Rabe once modified small EZ-Just adding plywood spacers top bottom achieve line spacing about 425 helped get Sea Fury around corners Dont afraid change handles can help quite bit better cutting airplane Finally regards trimming can recognize shortcomings plane various maneuvers still need fly season compensate shortcomings adjusting maneuvers instance have heavy plane critical wing loading/power open up maneuvers little plane pushed limit will stall out turns no excuse having poor intersections flying 80-ounce plane sick 46 engine plane continually comes loose over head maneuvers learn walk backwards use length ann keep tension plane will turn very sharply shorten line length go bigger handle line separation slow engine down much possible plane burdened some out-of-trim problems can made per form rather well pilot prepared burn about five gallons fuel process no substitute flying pattern over over especially can get someone spot number modelers have experiment ing Max 40 FSR over winter have found very powerful engine However some cases especially air planes 47- 52-oz weight range wing area 625 675 sq fliers have found engine seems speed up too much maneuvers has much problem some cases fliers have gone back ST46 other hand Bill Werwage feels test flights spring have shown plane 5 5-60 oz class ample square inches 650725 large prop possible will work fine has privilege using World Champ Bob Hunts custom-made 1 1-inch three-blade props Bill says large plane works pretty well Max engine Dave Hemstrought Stan Powell have said lapping ring well have eliminated speed up maneuvers Bob Hunt feverishly working gear reduction unit mount front Max 40 FSR will allow engine operate its optimum rpm rangeabout 14000 16000 allow prop stay about 8000 rpm Using either three-blade prop 14-6 prop Bob feels will revolutionize stunt event allowing plane operate comfortably a55 63 laptime eveninwinds up 25 mph can make unit reliable durable 3-5 oz penalty unit weight will offset increase performance information PAMPA Precision Aerobatics write Wynn PauL 1640 Maywick Dr Lexington KY 40504 FF Champs/Meuser continued page 54 632 seconds Despite records wins made Stan Stoys Coot design publicity has received result Hayes apparently present FAI events flown rounds seven required flights required launched within specified one-hour period making seven three-minute maxes went fly-offs flying continued until flier remained maxes No maxed out FAI Power Al Bissonett took top honors young Marty Thompson new FAI Power taking second-place spot World Champs Team members Gaibreath Simpson apparently saving biggie September A/2 Nordic Towline Glider fliers found thermal-finding difficult two maxed out Both young fellersGary Medley Bruce Hannah Jrand Bruce emerged win ner after first fly-off Four made Wakefield fly-offs Bob White Bob Piserchio Dick Gildersleeve Roger Gregory Roger missed max first fly-off Bob Piserchio broke motor after replacing motor rewinding no time wait thermal come along simply launched model made flight somewhat shorter Rogers White Gildersleeve both maxed automatically put Gregory Piserchio third fourth places respectively Both White Gildersleeve maxed second fly-off flight White maxed third Gildersleeve missed White won Jason Kendy Senior flier max out Coupe dHiver sixth flight duration would have given him new National Record stands five maxes perhaps wasnt aware September 1979 119
Edition: Model Aviation - 1979/09
Page Numbers: 50, 117, 119
DESPITE lengthy two-month series trim ming couple other related items should touch First off lets look engine speed lap times have run engine fast two-cycle ground get plane complete pattern probably need some engine rework use tachometers usually set engines 8000-rpm range ground have set engine much faster ground will no doubt experience some sagging engine difficult maneuvers instance 60/62-foot lines 5-second lap pretty fast probably means engine two cycling time lap times 56 60 engine probably running little rich may have power maneuvers unless have very powerful engine assuming running 11- 12inch prop 5 7 pitch good round figure lap time 52 55 seconds means plane going about 48mph 61-foot lines 55 sec/lap 50 seconds would 522 mph 60 would 435 mph Doesnt seem like much difference can certainly feel dif ference handle Another variable can experiment flying-line length 35 size engine plane probably want lines 56 60 feet length 40 engine can go anywhere 58 65 feet depending upon engine horsepower size airplane per sonal preference feel different line lengths instance HP4O Max 4OFSR can handle lines up 65 feet However general rule line lengths over 64 feet usually choice better fliers ST46s 45s line lengths 60 65 feet speaking measurements am referring length line handle end flying line counting inboard wing length Also am talking about stranded lines solids As shorten line length will speed up plane instance shortening line length foot 61 60 feet will increase speed about 0838 mph much differ ence youre concentrating should able tell difference maneuvers Short ening line length will cause better positive control down until lines too short plane will start jerky over responsive figures will look cramped have heavy plane might try flying little longer lines keep plane L0flg B competition flier Rolianu InU59Qu powersnglne 57-in span ship features i-beam c,druction nu weighs 52 02 photos hv tha nuthor 50 Model Aviation Larry Robertsons Revolution powers SB%inshipwithanST4ewithegosqinofwing area weighs 56 02 Nice color scheme using Randolph paint Dummy pilot iooksat home Cr10 1u510m-maae muwier bertsons plane provides .. . aruong Continued page 11 7 muffler made aluminum bar stock Concept borrows speed model practice Mike Gretz Box 162 Montezuma IA 50171 CL Navy Carrier/Perry continued page 49 clarification arrested landing definitions scale bonus points Profile CLCB will voting rules about month Sep tember 1 care about event owe yourself let CLCB representative know feelings Carrier issues up voting definitely favor scale-like Profile models case havent already reached conclusion reading previous columns Ive tried give equal time worthy non-scale models welL such model Bill Reynolds Tuborg H pictured month Bill top Profile fliers Daytons Buzzin Buzzards club Tuborg II uses flaps ailerons its 310sq-in wing has fixed leadouts stab although smaller Profile models has long moment arm quite adequate well-balanced model Rectangular wing planform minimum fuselages models like Tuborg II allow simplified light weight construction potential improved performance over heavier scale-like Profiles Bill uses ne Supertigre ST 35 engine has standard Profile Carrier quite previous discussions converting exist ing sport CL kits scale-like Profile models Ive never mentioned details establish proper outlines fuselage tail wing tips must often modified after kit selected provide proper wing shape match prototype Although accuratelyscaled outlines great require some effort develop sometimes dont look exactly right because flat fuselages Profile models Roger Edwards suggestion sketch outlines regard accuracy dimensions make adjustments neces sary until drawing looks right method artistic technicalis easy yet still provides realism desired model month have yet another obscure carrier prototype Handley Page model HP-21 US Navy HPS-l delivered 1923 proto type shipboard fighter Its advanced design consisted plywood wings fuselage much attention streamlining clean mono plane unusual era externally-braced fabric-covered biplanes could reach 145 mph 230 hp Its significant feature wing carried full-span flaps leading edge slats allowed landing speed 44 mph spite its design features Navy cancelled its order HPS- 1 after receiving first aircraft no others built Richard L Perry 5016 Angelita Ave Day ton OH 45424 reed about Model Aviation writing advertisers mention banging around corners allowing time recover speed between corners intersections within maneuver should help smooth out overall flight plane Lengthening lines will slow plane down will give room maneuvers should help smooth out flight plane starting out trim plane itis good idea make up three sets lines instance 35 size airplane try 58- 595- 605-foot lines Remember turns out shorter length best can cut longer ones size wing has pronounced warp wish remove best method Ive seen wrap wing cloth towels hot possible damp Keeping sharp lookout paint starts get loose starts lift block wing warp over-compensated about 14 let dry take towels off before blocking up should spring place after thorough ly drying come out about right Dont expect first soaking work perfectly may have repeat process after observing plane level flight wing high low flap tweaking doesnt work flaps wont bend danger breaking flap horn need put small tab wing flap made balsa tin can stock aluminum may want slit trailing edge wing flap insert tab soit looks pretty much built Remember can wonders performance airplane changing September1979 117 hardens neat possible tiymg get CL Aerobatics/Paul epoxy over ouside tubing continued page 50 airplane Some glue bound ooze out tubing permanently putinplace can easily wiped completely off clean rag soaked alcohoL squeeze bottle methyl alcoholas used giow fuelis always workbench comes handily situations like Rubbing alcohol will work just well Keep cards letters coming nanole anu iines iviore une spacing handle can speed up plane turning Likewise decreasing line separation handle like adding noseweight Al Rabe once modified small EZ-Just adding plywood spacers top bottom achieve line spacing about 425 helped get Sea Fury around corners Dont afraid change handles can help quite bit better cutting airplane Finally regards trimming can recognize shortcomings plane various maneuvers still need fly season compensate shortcomings adjusting maneuvers instance have heavy plane critical wing loading/power open up maneuvers little plane pushed limit will stall out turns no excuse having poor intersections flying 80-ounce plane sick 46 engine plane continually comes loose over head maneuvers learn walk backwards use length ann keep tension plane will turn very sharply shorten line length go bigger handle line separation slow engine down much possible plane burdened some out-of-trim problems can made per form rather well pilot prepared burn about five gallons fuel process no substitute flying pattern over over especially can get someone spot number modelers have experiment ing Max 40 FSR over winter have found very powerful engine However some cases especially air planes 47- 52-oz weight range wing area 625 675 sq fliers have found engine seems speed up too much maneuvers has much problem some cases fliers have gone back ST46 other hand Bill Werwage feels test flights spring have shown plane 5 5-60 oz class ample square inches 650725 large prop possible will work fine has privilege using World Champ Bob Hunts custom-made 1 1-inch three-blade props Bill says large plane works pretty well Max engine Dave Hemstrought Stan Powell have said lapping ring well have eliminated speed up maneuvers Bob Hunt feverishly working gear reduction unit mount front Max 40 FSR will allow engine operate its optimum rpm rangeabout 14000 16000 allow prop stay about 8000 rpm Using either three-blade prop 14-6 prop Bob feels will revolutionize stunt event allowing plane operate comfortably a55 63 laptime eveninwinds up 25 mph can make unit reliable durable 3-5 oz penalty unit weight will offset increase performance information PAMPA Precision Aerobatics write Wynn PauL 1640 Maywick Dr Lexington KY 40504 FF Champs/Meuser continued page 54 632 seconds Despite records wins made Stan Stoys Coot design publicity has received result Hayes apparently present FAI events flown rounds seven required flights required launched within specified one-hour period making seven three-minute maxes went fly-offs flying continued until flier remained maxes No maxed out FAI Power Al Bissonett took top honors young Marty Thompson new FAI Power taking second-place spot World Champs Team members Gaibreath Simpson apparently saving biggie September A/2 Nordic Towline Glider fliers found thermal-finding difficult two maxed out Both young fellersGary Medley Bruce Hannah Jrand Bruce emerged win ner after first fly-off Four made Wakefield fly-offs Bob White Bob Piserchio Dick Gildersleeve Roger Gregory Roger missed max first fly-off Bob Piserchio broke motor after replacing motor rewinding no time wait thermal come along simply launched model made flight somewhat shorter Rogers White Gildersleeve both maxed automatically put Gregory Piserchio third fourth places respectively Both White Gildersleeve maxed second fly-off flight White maxed third Gildersleeve missed White won Jason Kendy Senior flier max out Coupe dHiver sixth flight duration would have given him new National Record stands five maxes perhaps wasnt aware September 1979 119
Edition: Model Aviation - 1979/09
Page Numbers: 50, 117, 119
DESPITE lengthy two-month series trim ming couple other related items should touch First off lets look engine speed lap times have run engine fast two-cycle ground get plane complete pattern probably need some engine rework use tachometers usually set engines 8000-rpm range ground have set engine much faster ground will no doubt experience some sagging engine difficult maneuvers instance 60/62-foot lines 5-second lap pretty fast probably means engine two cycling time lap times 56 60 engine probably running little rich may have power maneuvers unless have very powerful engine assuming running 11- 12inch prop 5 7 pitch good round figure lap time 52 55 seconds means plane going about 48mph 61-foot lines 55 sec/lap 50 seconds would 522 mph 60 would 435 mph Doesnt seem like much difference can certainly feel dif ference handle Another variable can experiment flying-line length 35 size engine plane probably want lines 56 60 feet length 40 engine can go anywhere 58 65 feet depending upon engine horsepower size airplane per sonal preference feel different line lengths instance HP4O Max 4OFSR can handle lines up 65 feet However general rule line lengths over 64 feet usually choice better fliers ST46s 45s line lengths 60 65 feet speaking measurements am referring length line handle end flying line counting inboard wing length Also am talking about stranded lines solids As shorten line length will speed up plane instance shortening line length foot 61 60 feet will increase speed about 0838 mph much differ ence youre concentrating should able tell difference maneuvers Short ening line length will cause better positive control down until lines too short plane will start jerky over responsive figures will look cramped have heavy plane might try flying little longer lines keep plane L0flg B competition flier Rolianu InU59Qu powersnglne 57-in span ship features i-beam c,druction nu weighs 52 02 photos hv tha nuthor 50 Model Aviation Larry Robertsons Revolution powers SB%inshipwithanST4ewithegosqinofwing area weighs 56 02 Nice color scheme using Randolph paint Dummy pilot iooksat home Cr10 1u510m-maae muwier bertsons plane provides .. . aruong Continued page 11 7 muffler made aluminum bar stock Concept borrows speed model practice Mike Gretz Box 162 Montezuma IA 50171 CL Navy Carrier/Perry continued page 49 clarification arrested landing definitions scale bonus points Profile CLCB will voting rules about month Sep tember 1 care about event owe yourself let CLCB representative know feelings Carrier issues up voting definitely favor scale-like Profile models case havent already reached conclusion reading previous columns Ive tried give equal time worthy non-scale models welL such model Bill Reynolds Tuborg H pictured month Bill top Profile fliers Daytons Buzzin Buzzards club Tuborg II uses flaps ailerons its 310sq-in wing has fixed leadouts stab although smaller Profile models has long moment arm quite adequate well-balanced model Rectangular wing planform minimum fuselages models like Tuborg II allow simplified light weight construction potential improved performance over heavier scale-like Profiles Bill uses ne Supertigre ST 35 engine has standard Profile Carrier quite previous discussions converting exist ing sport CL kits scale-like Profile models Ive never mentioned details establish proper outlines fuselage tail wing tips must often modified after kit selected provide proper wing shape match prototype Although accuratelyscaled outlines great require some effort develop sometimes dont look exactly right because flat fuselages Profile models Roger Edwards suggestion sketch outlines regard accuracy dimensions make adjustments neces sary until drawing looks right method artistic technicalis easy yet still provides realism desired model month have yet another obscure carrier prototype Handley Page model HP-21 US Navy HPS-l delivered 1923 proto type shipboard fighter Its advanced design consisted plywood wings fuselage much attention streamlining clean mono plane unusual era externally-braced fabric-covered biplanes could reach 145 mph 230 hp Its significant feature wing carried full-span flaps leading edge slats allowed landing speed 44 mph spite its design features Navy cancelled its order HPS- 1 after receiving first aircraft no others built Richard L Perry 5016 Angelita Ave Day ton OH 45424 reed about Model Aviation writing advertisers mention banging around corners allowing time recover speed between corners intersections within maneuver should help smooth out overall flight plane Lengthening lines will slow plane down will give room maneuvers should help smooth out flight plane starting out trim plane itis good idea make up three sets lines instance 35 size airplane try 58- 595- 605-foot lines Remember turns out shorter length best can cut longer ones size wing has pronounced warp wish remove best method Ive seen wrap wing cloth towels hot possible damp Keeping sharp lookout paint starts get loose starts lift block wing warp over-compensated about 14 let dry take towels off before blocking up should spring place after thorough ly drying come out about right Dont expect first soaking work perfectly may have repeat process after observing plane level flight wing high low flap tweaking doesnt work flaps wont bend danger breaking flap horn need put small tab wing flap made balsa tin can stock aluminum may want slit trailing edge wing flap insert tab soit looks pretty much built Remember can wonders performance airplane changing September1979 117 hardens neat possible tiymg get CL Aerobatics/Paul epoxy over ouside tubing continued page 50 airplane Some glue bound ooze out tubing permanently putinplace can easily wiped completely off clean rag soaked alcohoL squeeze bottle methyl alcoholas used giow fuelis always workbench comes handily situations like Rubbing alcohol will work just well Keep cards letters coming nanole anu iines iviore une spacing handle can speed up plane turning Likewise decreasing line separation handle like adding noseweight Al Rabe once modified small EZ-Just adding plywood spacers top bottom achieve line spacing about 425 helped get Sea Fury around corners Dont afraid change handles can help quite bit better cutting airplane Finally regards trimming can recognize shortcomings plane various maneuvers still need fly season compensate shortcomings adjusting maneuvers instance have heavy plane critical wing loading/power open up maneuvers little plane pushed limit will stall out turns no excuse having poor intersections flying 80-ounce plane sick 46 engine plane continually comes loose over head maneuvers learn walk backwards use length ann keep tension plane will turn very sharply shorten line length go bigger handle line separation slow engine down much possible plane burdened some out-of-trim problems can made per form rather well pilot prepared burn about five gallons fuel process no substitute flying pattern over over especially can get someone spot number modelers have experiment ing Max 40 FSR over winter have found very powerful engine However some cases especially air planes 47- 52-oz weight range wing area 625 675 sq fliers have found engine seems speed up too much maneuvers has much problem some cases fliers have gone back ST46 other hand Bill Werwage feels test flights spring have shown plane 5 5-60 oz class ample square inches 650725 large prop possible will work fine has privilege using World Champ Bob Hunts custom-made 1 1-inch three-blade props Bill says large plane works pretty well Max engine Dave Hemstrought Stan Powell have said lapping ring well have eliminated speed up maneuvers Bob Hunt feverishly working gear reduction unit mount front Max 40 FSR will allow engine operate its optimum rpm rangeabout 14000 16000 allow prop stay about 8000 rpm Using either three-blade prop 14-6 prop Bob feels will revolutionize stunt event allowing plane operate comfortably a55 63 laptime eveninwinds up 25 mph can make unit reliable durable 3-5 oz penalty unit weight will offset increase performance information PAMPA Precision Aerobatics write Wynn PauL 1640 Maywick Dr Lexington KY 40504 FF Champs/Meuser continued page 54 632 seconds Despite records wins made Stan Stoys Coot design publicity has received result Hayes apparently present FAI events flown rounds seven required flights required launched within specified one-hour period making seven three-minute maxes went fly-offs flying continued until flier remained maxes No maxed out FAI Power Al Bissonett took top honors young Marty Thompson new FAI Power taking second-place spot World Champs Team members Gaibreath Simpson apparently saving biggie September A/2 Nordic Towline Glider fliers found thermal-finding difficult two maxed out Both young fellersGary Medley Bruce Hannah Jrand Bruce emerged win ner after first fly-off Four made Wakefield fly-offs Bob White Bob Piserchio Dick Gildersleeve Roger Gregory Roger missed max first fly-off Bob Piserchio broke motor after replacing motor rewinding no time wait thermal come along simply launched model made flight somewhat shorter Rogers White Gildersleeve both maxed automatically put Gregory Piserchio third fourth places respectively Both White Gildersleeve maxed second fly-off flight White maxed third Gildersleeve missed White won Jason Kendy Senior flier max out Coupe dHiver sixth flight duration would have given him new National Record stands five maxes perhaps wasnt aware September 1979 119