Control Line Combat Charlie Johnson THE PREMIER CL Combat event Bladder Grabber will held Boeing Space Center Seattle WA July 7 8 triple-elimination Fast Combat tour nament will feature cream crop going $5000 merchandise Last year several former National Champions well reigning World Champion competed incredible meet sponsored Carver Corporation donates high-tech stereo components awarded prizes Howard Rush once again acting contact/promotion person Call 206 823-6018 information meet well accommodations also giant meet going down 1981 Nationals site Seguin TX featuring just about everything youd find Nats Unfortunately Fast Combat pilots meet same weekend Bladder Grabber Except few fly distant meets drive Texas Washington State bit unre alistic meet shouldnt affect other Nationals will held Reno year should prove interesting several reasons First altitude should affect power performance models Ive never flown Combat model altitude above 3000 feet Im told mile-high fliers Denver surprise sure bring few differ ent fuels well some props wider blades pitch diameter right combination yours find Rich Lopez will Event Director year organization should first class basic judge/helper corps has already selected theres always room help Call Rich 213 670-1656 want volunteer events tentatively scheduled full double-elimination Also jury will again used five-man panel will se lected before flying starts protest filed three five will selected form jury Im told flying site very nice less quarter-mile other Con trol Line events shouldnt have freeway traffic going through area like last year Cox will once again sponsor l/2A Com bat will run Thursday fea ture same nice prizes past unofficial l/2A event has drawn almost entries official events has always lot fun CL World Championships will held least years Nationals site Westover AFB Chicopee MA September 17-22 Volunteer help needed Contact Micheline Madison AMA HQ youre interested 703/435-0750 want make well-run Championships Europeans have come expect professionally-run meets its going take lot work planning make grade Rich Lopez will FAT Judges well Englands Richard Evans Bel giums Guido Michiels Besides volunteering help run Continued page 172 new tu Lontroi Line Combat LI trio L H Charlie Johnson Charles Mackey Rich Lopez devices heid Charlie Rich two Mackeys Combat Kitestwo-line terrors sky Chariie says kites really super practice flying teils aii about caper coiumn photo right Myies Lawrence Mission Viejo CAL Martyn Cowicy formerly UK seen soon after hA Combat match Martyn one-time editor famous Engiish magazine Aeromodellernow lives West Coast special cast engine mounts L FAi Combat pianes availabie Rich Lopez $850/set Theyre strong vibration-tree inter changeable reusable normaliy come driiied tapped can ordered coiumn Au CL fiiers wouid weii use scheme attaching leadouts metal beiicrank R keeps crank cutting through leadouts Get brass eyelet suitabie size cut radial slot drills k-In hole belicrank slip eyelet leadout goes around eyelet terminated crimping soldering Note has bound wire prior soldering July 1984 75 HIGH QUALITY FOAM WING CORES AND CUSTOM FOAM CUTTING have large selection wing cores available stock Custom foam cutting reasonable prices Foam blocks nichrome wire special needs Wire $40025 feet 2040 60 size floats $1295 SPECIAL Month Great Planes CAP 21 Wings 0 Information Prices Contact 0m. Stet *eromds Eaguieeiiq 21 ieee D4ve West Wwwic& 81 02892 call 401 828-8813 Please add $3 ship & Hand Foam its Best Deal Bests 1 ft ing quarter-chord point wing lift force tail usually produced some amount down-elevator wing produces lift also produces some downwash aifflow deflected downward behind wing As wings angle attack increases downwash creases well downwash affects airflow around tail tending cause nose plane pitch upthus requiring down-elevator compensate Flaps aircraft model tend concentrate downwash area behind flaps thereby countering some nose-down pitching moment caused deflecting flaps effects just described require model balanced aft quarterchord pointfarther aft Carrier fliers balance modelsif produce noticeable down elevator however another effect pronounced propeller jet take aircraft operating high angle attack will change direction incoming airflow such way cause force perpendicular original direction airflow force verti cal force aircraft level flight mean model neither climb ing nor descending though fuse lage may level altitude propeller mounted ahead bal ance point models con figured force will tend pitch nose up force becomes stronger angle attack andlor power setting increased effect produces much down-elevator seen Daves model same effect causes nose model equipped line-slider point out circle farther would difference leadout position factor acting model look photo reveals leadouts extended straight line past line slider would intersect fuselage well ahead bal ance point Although some angle caused rudder much result power effect acting sideward direction time same way Ive explained nose-up effects same effect causes oscillations can result power bursts applied low speeds line slider aft cause effect power application very low airspeeds should smooth put ting premium good throttle technique also properly adjusted carburetor Line sliders Im subject have few questions over winter building season about construct line sliders release lowspeed flight sliders quite simple construct Kingfisher Profile Carrier ar tide contained preferred method con struction using nylon sheet Sig brass channel K&S An alternative seen quite commonly external sliders consists plywood mount slide made up three layers ply shown accompanying drawing individuals use springs rubberbands move line slider aft released seems optional designs As long slider moves freely bellerank mounted onor behindthe center gravity drag lines force balance control system model should sufficient move slider release mechanism slider can simple pin attached throttle leadout requires aft movement throttle lever handle high speed Internal releases can consist 3/ms-in A6-in wire attached bellcrank arm moves outboard down elevator length wire adjusted down elevator applied simultaneously low throttle pulls wire slider problem arrangement possible wire catch slide release motion very fast can cause significant down-elevator pressure can extremely difficult counter before crash results An alternative solu tion use cable place wire add spring-loaded release such the photo Spring pressure must very light assure reliable operation using elevator bellcrank release control An alternative method using bellcrank movement release slider use tailhook purpose cable attached hook can routed through nylon brass tubeor 900 bellcrankto change its direction motion runs hook slider cable can also serve down stop hook Richard L Perry 7578 Vogels Way Springfield VA 22153 CL Combat/Johnson Continued paqe 75 event can also help three current team members World Champion bringing spare models contest fly ing practice Combat big four Im sure theyll glad try mod els youd get experience Com bating best world Westover large finding extra practice circles will no problem See note 172 Model Aviation fl Nor Cha~ 0 P0 e id tRuhb ak n PERFORMANCE CHAMPION RUBBER 4 Y16 & Widths 040 Thick Si 295 LB See hobby dealer order direct PPD CHAMPION MODEL PRODUCTS 880 CARMEN COURT LA VERNE CA 91750 17141 599-3348 lflCIde5 US delv,y va U PS CaIi esderits add 6% Sales ax THE STEARMAN 35 Wingspan Engines Send 50t Kit $104 $2195 Flyline Models CatalogPhone 703 273-9593 Dealer ributor Inquiries Invited FLYLINE MODELS INC PO Box 2136 Fairfax Virginia 22031 USA bpring-loaOed line-slider release actuated cable rather usual wire Cable lighter cannot lock elevator control slide does release fully FREE 1984 Catalog tools Hobbyist Miniature lathes Milling/drilling machines Jig & circular saws Styrofoam cutter Phone 614/445-9821 v$jsi hobby products Co PO Box 07846 Columbus OH 43207 months Competition Newsletter section about pre-WC warm-up FAI Combat meet Chicopee out damage suspect once able fly kite could also fly powered model Sorta Kanary/Ruggiero Continued page 78 attending glorious grand open ing Whittier Narrows Control Line site introduced Charles Mackey has long-time CL afficionado Hes designed real neat combat kite markets through Mackeys Trade Wind Kite Company PO Box 2698 Mission Viejo CA 92690 arent run-of-the-mill kites get program fly lot like FAL Combat model Rich Lopez decided theyd make wonderful trainers flying Combat since theyre almost indestructable require no building time can flown noise problem its too windy seri ous test flying two-line monsters have flown appreciated must know fly two-line model youll end up groundjust fast greenhorn Combat model flew kite-against-kite think defense-only would give powered model fits Its offensive capabilities lim ited because flies best downwind third circle right hands might score upset Besides really sharpening reflexes also builds up arm wrist strength impor tant Fast Combat models pull hard enough wear down after lot flights Racing fliers Mill also like kites because can practice whipping kites seem little expensive $2495 get moneys worth first time go out flying come approximately 100 ft Kevlar lines have unwind often too loops direction let some non-modelers try kite see could fly it looks like would take about same training period regular model except can crash lots times withFLYING NEAR Al RPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY Russians used some really neat metal motor mounts Poland CL World Championships Myles Lawrence made up few sets himself based Russian mounts Rich Lopez followed up Myles lead having several hundred sets cast up real trick well-finished mounts allow about half-inch change en gine location balance purposes whole thing pictured costs $850 plus $100 postage handling per order Extra spacers $150 special request mounts available undrilled un tappedor front holes drilled tapped Rich also has available plans Fast Combat model FAI-size model $3 per set includes postage engine Bob Oge set up told about May 1984 column continues run well 100 1000 rpm faster its stock sister-engine depending prop fuel has taken longer accumu late some hours engines thought Putting 8-10 runs Fast Combat model about limit day Ive putting 30-40 minutes air time FAI about same kite Neither engine hard plugsand tempermental some old re built pin method plugs found bottom flying box much junk people didnt think bottom engine Oge did has far superior compression no surprise since liner chromed piston carefully fitted believe its start ing general especially hot start ing enhanced good fit Itll interesting see fit holds up usual ration dirt run through engine during some unscheduled pit stops Charlie Johnson 3716 Ingraham St San Diego CA 92109 have called old area code told number disconnected can call San Diegos new area code 619 regular number 273-6530 tips bit underneath leading edge Sand trailing edge about /16-in thickness edge wont too weak Cut notches wing struts both wings dont cut way through wings about /s deep enough Make struts Popsicle craft sticks about 3A6 longer shown plans can later trim exactly tip weight right wing use 3/4-in steel washer about 3-in length large-diameter solder two pennies bottom wing cut out appro priate shape weight material ce ment place Cover spackling compound balsa insert After dry ing sand filler smooth #80 paper finish sanding #180 Gluing wings fuselage done two steps First fit bottom wing Rest wing workbench leading edge sits flush edge bench Place fuselage wing Make sure equal amounts wing show both sides fuselage wing fuselage meet fair square Make couple light pencil marks wing fuselage meets remove fuselage Put glue wing saddle set fuselage very carefully back wing well bottom fuse lage should just clear bench top /i6 Hold assembly down book until glue dries Insert struts notches top wingbut dont glue Set top wing fuselage test fit working strut ends notches bottom wing Check top wing sits snugly fuselage leading trailing edges parallel struts fit notches forcing will probably need adjust strut length cutting off little testing fit cutting bit until fit right make marks underside top wing sits prop erly fuselage apply glue struts fuselage wing saddle weight assembly down book July 1984 173 Send $100 Catalog NEW LOW PRICE 95 Pbs supping 1 39 Direct Sales Only Work Horse95 KIORITZ 24 32 HP- 6A Lbs 179 Dealer Direct Now Distribute Sachs-Dolmar Engines Yea ger Machines ALL Y TO RUN INCLUDING 6 BOLT PROP HUB MOUNT MUFFLERS AVAILABLE AT EXTRA CHARGE Rear 3405 Cleveland Ave. SW Canton OH 44707 Phone 216 4846810 4844374 DIVISION ROUSH ENGINE
Edition: Model Aviation - 1984/07
Page Numbers: 75, 172, 173
Control Line Combat Charlie Johnson THE PREMIER CL Combat event Bladder Grabber will held Boeing Space Center Seattle WA July 7 8 triple-elimination Fast Combat tour nament will feature cream crop going $5000 merchandise Last year several former National Champions well reigning World Champion competed incredible meet sponsored Carver Corporation donates high-tech stereo components awarded prizes Howard Rush once again acting contact/promotion person Call 206 823-6018 information meet well accommodations also giant meet going down 1981 Nationals site Seguin TX featuring just about everything youd find Nats Unfortunately Fast Combat pilots meet same weekend Bladder Grabber Except few fly distant meets drive Texas Washington State bit unre alistic meet shouldnt affect other Nationals will held Reno year should prove interesting several reasons First altitude should affect power performance models Ive never flown Combat model altitude above 3000 feet Im told mile-high fliers Denver surprise sure bring few differ ent fuels well some props wider blades pitch diameter right combination yours find Rich Lopez will Event Director year organization should first class basic judge/helper corps has already selected theres always room help Call Rich 213 670-1656 want volunteer events tentatively scheduled full double-elimination Also jury will again used five-man panel will se lected before flying starts protest filed three five will selected form jury Im told flying site very nice less quarter-mile other Con trol Line events shouldnt have freeway traffic going through area like last year Cox will once again sponsor l/2A Com bat will run Thursday fea ture same nice prizes past unofficial l/2A event has drawn almost entries official events has always lot fun CL World Championships will held least years Nationals site Westover AFB Chicopee MA September 17-22 Volunteer help needed Contact Micheline Madison AMA HQ youre interested 703/435-0750 want make well-run Championships Europeans have come expect professionally-run meets its going take lot work planning make grade Rich Lopez will FAT Judges well Englands Richard Evans Bel giums Guido Michiels Besides volunteering help run Continued page 172 new tu Lontroi Line Combat LI trio L H Charlie Johnson Charles Mackey Rich Lopez devices heid Charlie Rich two Mackeys Combat Kitestwo-line terrors sky Chariie says kites really super practice flying teils aii about caper coiumn photo right Myies Lawrence Mission Viejo CAL Martyn Cowicy formerly UK seen soon after hA Combat match Martyn one-time editor famous Engiish magazine Aeromodellernow lives West Coast special cast engine mounts L FAi Combat pianes availabie Rich Lopez $850/set Theyre strong vibration-tree inter changeable reusable normaliy come driiied tapped can ordered coiumn Au CL fiiers wouid weii use scheme attaching leadouts metal beiicrank R keeps crank cutting through leadouts Get brass eyelet suitabie size cut radial slot drills k-In hole belicrank slip eyelet leadout goes around eyelet terminated crimping soldering Note has bound wire prior soldering July 1984 75 HIGH QUALITY FOAM WING CORES AND CUSTOM FOAM CUTTING have large selection wing cores available stock Custom foam cutting reasonable prices Foam blocks nichrome wire special needs Wire $40025 feet 2040 60 size floats $1295 SPECIAL Month Great Planes CAP 21 Wings 0 Information Prices Contact 0m. Stet *eromds Eaguieeiiq 21 ieee D4ve West Wwwic& 81 02892 call 401 828-8813 Please add $3 ship & Hand Foam its Best Deal Bests 1 ft ing quarter-chord point wing lift force tail usually produced some amount down-elevator wing produces lift also produces some downwash aifflow deflected downward behind wing As wings angle attack increases downwash creases well downwash affects airflow around tail tending cause nose plane pitch upthus requiring down-elevator compensate Flaps aircraft model tend concentrate downwash area behind flaps thereby countering some nose-down pitching moment caused deflecting flaps effects just described require model balanced aft quarterchord pointfarther aft Carrier fliers balance modelsif produce noticeable down elevator however another effect pronounced propeller jet take aircraft operating high angle attack will change direction incoming airflow such way cause force perpendicular original direction airflow force verti cal force aircraft level flight mean model neither climb ing nor descending though fuse lage may level altitude propeller mounted ahead bal ance point models con figured force will tend pitch nose up force becomes stronger angle attack andlor power setting increased effect produces much down-elevator seen Daves model same effect causes nose model equipped line-slider point out circle farther would difference leadout position factor acting model look photo reveals leadouts extended straight line past line slider would intersect fuselage well ahead bal ance point Although some angle caused rudder much result power effect acting sideward direction time same way Ive explained nose-up effects same effect causes oscillations can result power bursts applied low speeds line slider aft cause effect power application very low airspeeds should smooth put ting premium good throttle technique also properly adjusted carburetor Line sliders Im subject have few questions over winter building season about construct line sliders release lowspeed flight sliders quite simple construct Kingfisher Profile Carrier ar tide contained preferred method con struction using nylon sheet Sig brass channel K&S An alternative seen quite commonly external sliders consists plywood mount slide made up three layers ply shown accompanying drawing individuals use springs rubberbands move line slider aft released seems optional designs As long slider moves freely bellerank mounted onor behindthe center gravity drag lines force balance control system model should sufficient move slider release mechanism slider can simple pin attached throttle leadout requires aft movement throttle lever handle high speed Internal releases can consist 3/ms-in A6-in wire attached bellcrank arm moves outboard down elevator length wire adjusted down elevator applied simultaneously low throttle pulls wire slider problem arrangement possible wire catch slide release motion very fast can cause significant down-elevator pressure can extremely difficult counter before crash results An alternative solu tion use cable place wire add spring-loaded release such the photo Spring pressure must very light assure reliable operation using elevator bellcrank release control An alternative method using bellcrank movement release slider use tailhook purpose cable attached hook can routed through nylon brass tubeor 900 bellcrankto change its direction motion runs hook slider cable can also serve down stop hook Richard L Perry 7578 Vogels Way Springfield VA 22153 CL Combat/Johnson Continued paqe 75 event can also help three current team members World Champion bringing spare models contest fly ing practice Combat big four Im sure theyll glad try mod els youd get experience Com bating best world Westover large finding extra practice circles will no problem See note 172 Model Aviation fl Nor Cha~ 0 P0 e id tRuhb ak n PERFORMANCE CHAMPION RUBBER 4 Y16 & Widths 040 Thick Si 295 LB See hobby dealer order direct PPD CHAMPION MODEL PRODUCTS 880 CARMEN COURT LA VERNE CA 91750 17141 599-3348 lflCIde5 US delv,y va U PS CaIi esderits add 6% Sales ax THE STEARMAN 35 Wingspan Engines Send 50t Kit $104 $2195 Flyline Models CatalogPhone 703 273-9593 Dealer ributor Inquiries Invited FLYLINE MODELS INC PO Box 2136 Fairfax Virginia 22031 USA bpring-loaOed line-slider release actuated cable rather usual wire Cable lighter cannot lock elevator control slide does release fully FREE 1984 Catalog tools Hobbyist Miniature lathes Milling/drilling machines Jig & circular saws Styrofoam cutter Phone 614/445-9821 v$jsi hobby products Co PO Box 07846 Columbus OH 43207 months Competition Newsletter section about pre-WC warm-up FAI Combat meet Chicopee out damage suspect once able fly kite could also fly powered model Sorta Kanary/Ruggiero Continued page 78 attending glorious grand open ing Whittier Narrows Control Line site introduced Charles Mackey has long-time CL afficionado Hes designed real neat combat kite markets through Mackeys Trade Wind Kite Company PO Box 2698 Mission Viejo CA 92690 arent run-of-the-mill kites get program fly lot like FAL Combat model Rich Lopez decided theyd make wonderful trainers flying Combat since theyre almost indestructable require no building time can flown noise problem its too windy seri ous test flying two-line monsters have flown appreciated must know fly two-line model youll end up groundjust fast greenhorn Combat model flew kite-against-kite think defense-only would give powered model fits Its offensive capabilities lim ited because flies best downwind third circle right hands might score upset Besides really sharpening reflexes also builds up arm wrist strength impor tant Fast Combat models pull hard enough wear down after lot flights Racing fliers Mill also like kites because can practice whipping kites seem little expensive $2495 get moneys worth first time go out flying come approximately 100 ft Kevlar lines have unwind often too loops direction let some non-modelers try kite see could fly it looks like would take about same training period regular model except can crash lots times withFLYING NEAR Al RPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY Russians used some really neat metal motor mounts Poland CL World Championships Myles Lawrence made up few sets himself based Russian mounts Rich Lopez followed up Myles lead having several hundred sets cast up real trick well-finished mounts allow about half-inch change en gine location balance purposes whole thing pictured costs $850 plus $100 postage handling per order Extra spacers $150 special request mounts available undrilled un tappedor front holes drilled tapped Rich also has available plans Fast Combat model FAI-size model $3 per set includes postage engine Bob Oge set up told about May 1984 column continues run well 100 1000 rpm faster its stock sister-engine depending prop fuel has taken longer accumu late some hours engines thought Putting 8-10 runs Fast Combat model about limit day Ive putting 30-40 minutes air time FAI about same kite Neither engine hard plugsand tempermental some old re built pin method plugs found bottom flying box much junk people didnt think bottom engine Oge did has far superior compression no surprise since liner chromed piston carefully fitted believe its start ing general especially hot start ing enhanced good fit Itll interesting see fit holds up usual ration dirt run through engine during some unscheduled pit stops Charlie Johnson 3716 Ingraham St San Diego CA 92109 have called old area code told number disconnected can call San Diegos new area code 619 regular number 273-6530 tips bit underneath leading edge Sand trailing edge about /16-in thickness edge wont too weak Cut notches wing struts both wings dont cut way through wings about /s deep enough Make struts Popsicle craft sticks about 3A6 longer shown plans can later trim exactly tip weight right wing use 3/4-in steel washer about 3-in length large-diameter solder two pennies bottom wing cut out appro priate shape weight material ce ment place Cover spackling compound balsa insert After dry ing sand filler smooth #80 paper finish sanding #180 Gluing wings fuselage done two steps First fit bottom wing Rest wing workbench leading edge sits flush edge bench Place fuselage wing Make sure equal amounts wing show both sides fuselage wing fuselage meet fair square Make couple light pencil marks wing fuselage meets remove fuselage Put glue wing saddle set fuselage very carefully back wing well bottom fuse lage should just clear bench top /i6 Hold assembly down book until glue dries Insert struts notches top wingbut dont glue Set top wing fuselage test fit working strut ends notches bottom wing Check top wing sits snugly fuselage leading trailing edges parallel struts fit notches forcing will probably need adjust strut length cutting off little testing fit cutting bit until fit right make marks underside top wing sits prop erly fuselage apply glue struts fuselage wing saddle weight assembly down book July 1984 173 Send $100 Catalog NEW LOW PRICE 95 Pbs supping 1 39 Direct Sales Only Work Horse95 KIORITZ 24 32 HP- 6A Lbs 179 Dealer Direct Now Distribute Sachs-Dolmar Engines Yea ger Machines ALL Y TO RUN INCLUDING 6 BOLT PROP HUB MOUNT MUFFLERS AVAILABLE AT EXTRA CHARGE Rear 3405 Cleveland Ave. SW Canton OH 44707 Phone 216 4846810 4844374 DIVISION ROUSH ENGINE
Edition: Model Aviation - 1984/07
Page Numbers: 75, 172, 173
Control Line Combat Charlie Johnson THE PREMIER CL Combat event Bladder Grabber will held Boeing Space Center Seattle WA July 7 8 triple-elimination Fast Combat tour nament will feature cream crop going $5000 merchandise Last year several former National Champions well reigning World Champion competed incredible meet sponsored Carver Corporation donates high-tech stereo components awarded prizes Howard Rush once again acting contact/promotion person Call 206 823-6018 information meet well accommodations also giant meet going down 1981 Nationals site Seguin TX featuring just about everything youd find Nats Unfortunately Fast Combat pilots meet same weekend Bladder Grabber Except few fly distant meets drive Texas Washington State bit unre alistic meet shouldnt affect other Nationals will held Reno year should prove interesting several reasons First altitude should affect power performance models Ive never flown Combat model altitude above 3000 feet Im told mile-high fliers Denver surprise sure bring few differ ent fuels well some props wider blades pitch diameter right combination yours find Rich Lopez will Event Director year organization should first class basic judge/helper corps has already selected theres always room help Call Rich 213 670-1656 want volunteer events tentatively scheduled full double-elimination Also jury will again used five-man panel will se lected before flying starts protest filed three five will selected form jury Im told flying site very nice less quarter-mile other Con trol Line events shouldnt have freeway traffic going through area like last year Cox will once again sponsor l/2A Com bat will run Thursday fea ture same nice prizes past unofficial l/2A event has drawn almost entries official events has always lot fun CL World Championships will held least years Nationals site Westover AFB Chicopee MA September 17-22 Volunteer help needed Contact Micheline Madison AMA HQ youre interested 703/435-0750 want make well-run Championships Europeans have come expect professionally-run meets its going take lot work planning make grade Rich Lopez will FAT Judges well Englands Richard Evans Bel giums Guido Michiels Besides volunteering help run Continued page 172 new tu Lontroi Line Combat LI trio L H Charlie Johnson Charles Mackey Rich Lopez devices heid Charlie Rich two Mackeys Combat Kitestwo-line terrors sky Chariie says kites really super practice flying teils aii about caper coiumn photo right Myies Lawrence Mission Viejo CAL Martyn Cowicy formerly UK seen soon after hA Combat match Martyn one-time editor famous Engiish magazine Aeromodellernow lives West Coast special cast engine mounts L FAi Combat pianes availabie Rich Lopez $850/set Theyre strong vibration-tree inter changeable reusable normaliy come driiied tapped can ordered coiumn Au CL fiiers wouid weii use scheme attaching leadouts metal beiicrank R keeps crank cutting through leadouts Get brass eyelet suitabie size cut radial slot drills k-In hole belicrank slip eyelet leadout goes around eyelet terminated crimping soldering Note has bound wire prior soldering July 1984 75 HIGH QUALITY FOAM WING CORES AND CUSTOM FOAM CUTTING have large selection wing cores available stock Custom foam cutting reasonable prices Foam blocks nichrome wire special needs Wire $40025 feet 2040 60 size floats $1295 SPECIAL Month Great Planes CAP 21 Wings 0 Information Prices Contact 0m. Stet *eromds Eaguieeiiq 21 ieee D4ve West Wwwic& 81 02892 call 401 828-8813 Please add $3 ship & Hand Foam its Best Deal Bests 1 ft ing quarter-chord point wing lift force tail usually produced some amount down-elevator wing produces lift also produces some downwash aifflow deflected downward behind wing As wings angle attack increases downwash creases well downwash affects airflow around tail tending cause nose plane pitch upthus requiring down-elevator compensate Flaps aircraft model tend concentrate downwash area behind flaps thereby countering some nose-down pitching moment caused deflecting flaps effects just described require model balanced aft quarterchord pointfarther aft Carrier fliers balance modelsif produce noticeable down elevator however another effect pronounced propeller jet take aircraft operating high angle attack will change direction incoming airflow such way cause force perpendicular original direction airflow force verti cal force aircraft level flight mean model neither climb ing nor descending though fuse lage may level altitude propeller mounted ahead bal ance point models con figured force will tend pitch nose up force becomes stronger angle attack andlor power setting increased effect produces much down-elevator seen Daves model same effect causes nose model equipped line-slider point out circle farther would difference leadout position factor acting model look photo reveals leadouts extended straight line past line slider would intersect fuselage well ahead bal ance point Although some angle caused rudder much result power effect acting sideward direction time same way Ive explained nose-up effects same effect causes oscillations can result power bursts applied low speeds line slider aft cause effect power application very low airspeeds should smooth put ting premium good throttle technique also properly adjusted carburetor Line sliders Im subject have few questions over winter building season about construct line sliders release lowspeed flight sliders quite simple construct Kingfisher Profile Carrier ar tide contained preferred method con struction using nylon sheet Sig brass channel K&S An alternative seen quite commonly external sliders consists plywood mount slide made up three layers ply shown accompanying drawing individuals use springs rubberbands move line slider aft released seems optional designs As long slider moves freely bellerank mounted onor behindthe center gravity drag lines force balance control system model should sufficient move slider release mechanism slider can simple pin attached throttle leadout requires aft movement throttle lever handle high speed Internal releases can consist 3/ms-in A6-in wire attached bellcrank arm moves outboard down elevator length wire adjusted down elevator applied simultaneously low throttle pulls wire slider problem arrangement possible wire catch slide release motion very fast can cause significant down-elevator pressure can extremely difficult counter before crash results An alternative solu tion use cable place wire add spring-loaded release such the photo Spring pressure must very light assure reliable operation using elevator bellcrank release control An alternative method using bellcrank movement release slider use tailhook purpose cable attached hook can routed through nylon brass tubeor 900 bellcrankto change its direction motion runs hook slider cable can also serve down stop hook Richard L Perry 7578 Vogels Way Springfield VA 22153 CL Combat/Johnson Continued paqe 75 event can also help three current team members World Champion bringing spare models contest fly ing practice Combat big four Im sure theyll glad try mod els youd get experience Com bating best world Westover large finding extra practice circles will no problem See note 172 Model Aviation fl Nor Cha~ 0 P0 e id tRuhb ak n PERFORMANCE CHAMPION RUBBER 4 Y16 & Widths 040 Thick Si 295 LB See hobby dealer order direct PPD CHAMPION MODEL PRODUCTS 880 CARMEN COURT LA VERNE CA 91750 17141 599-3348 lflCIde5 US delv,y va U PS CaIi esderits add 6% Sales ax THE STEARMAN 35 Wingspan Engines Send 50t Kit $104 $2195 Flyline Models CatalogPhone 703 273-9593 Dealer ributor Inquiries Invited FLYLINE MODELS INC PO Box 2136 Fairfax Virginia 22031 USA bpring-loaOed line-slider release actuated cable rather usual wire Cable lighter cannot lock elevator control slide does release fully FREE 1984 Catalog tools Hobbyist Miniature lathes Milling/drilling machines Jig & circular saws Styrofoam cutter Phone 614/445-9821 v$jsi hobby products Co PO Box 07846 Columbus OH 43207 months Competition Newsletter section about pre-WC warm-up FAI Combat meet Chicopee out damage suspect once able fly kite could also fly powered model Sorta Kanary/Ruggiero Continued page 78 attending glorious grand open ing Whittier Narrows Control Line site introduced Charles Mackey has long-time CL afficionado Hes designed real neat combat kite markets through Mackeys Trade Wind Kite Company PO Box 2698 Mission Viejo CA 92690 arent run-of-the-mill kites get program fly lot like FAL Combat model Rich Lopez decided theyd make wonderful trainers flying Combat since theyre almost indestructable require no building time can flown noise problem its too windy seri ous test flying two-line monsters have flown appreciated must know fly two-line model youll end up groundjust fast greenhorn Combat model flew kite-against-kite think defense-only would give powered model fits Its offensive capabilities lim ited because flies best downwind third circle right hands might score upset Besides really sharpening reflexes also builds up arm wrist strength impor tant Fast Combat models pull hard enough wear down after lot flights Racing fliers Mill also like kites because can practice whipping kites seem little expensive $2495 get moneys worth first time go out flying come approximately 100 ft Kevlar lines have unwind often too loops direction let some non-modelers try kite see could fly it looks like would take about same training period regular model except can crash lots times withFLYING NEAR Al RPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY Russians used some really neat metal motor mounts Poland CL World Championships Myles Lawrence made up few sets himself based Russian mounts Rich Lopez followed up Myles lead having several hundred sets cast up real trick well-finished mounts allow about half-inch change en gine location balance purposes whole thing pictured costs $850 plus $100 postage handling per order Extra spacers $150 special request mounts available undrilled un tappedor front holes drilled tapped Rich also has available plans Fast Combat model FAI-size model $3 per set includes postage engine Bob Oge set up told about May 1984 column continues run well 100 1000 rpm faster its stock sister-engine depending prop fuel has taken longer accumu late some hours engines thought Putting 8-10 runs Fast Combat model about limit day Ive putting 30-40 minutes air time FAI about same kite Neither engine hard plugsand tempermental some old re built pin method plugs found bottom flying box much junk people didnt think bottom engine Oge did has far superior compression no surprise since liner chromed piston carefully fitted believe its start ing general especially hot start ing enhanced good fit Itll interesting see fit holds up usual ration dirt run through engine during some unscheduled pit stops Charlie Johnson 3716 Ingraham St San Diego CA 92109 have called old area code told number disconnected can call San Diegos new area code 619 regular number 273-6530 tips bit underneath leading edge Sand trailing edge about /16-in thickness edge wont too weak Cut notches wing struts both wings dont cut way through wings about /s deep enough Make struts Popsicle craft sticks about 3A6 longer shown plans can later trim exactly tip weight right wing use 3/4-in steel washer about 3-in length large-diameter solder two pennies bottom wing cut out appro priate shape weight material ce ment place Cover spackling compound balsa insert After dry ing sand filler smooth #80 paper finish sanding #180 Gluing wings fuselage done two steps First fit bottom wing Rest wing workbench leading edge sits flush edge bench Place fuselage wing Make sure equal amounts wing show both sides fuselage wing fuselage meet fair square Make couple light pencil marks wing fuselage meets remove fuselage Put glue wing saddle set fuselage very carefully back wing well bottom fuse lage should just clear bench top /i6 Hold assembly down book until glue dries Insert struts notches top wingbut dont glue Set top wing fuselage test fit working strut ends notches bottom wing Check top wing sits snugly fuselage leading trailing edges parallel struts fit notches forcing will probably need adjust strut length cutting off little testing fit cutting bit until fit right make marks underside top wing sits prop erly fuselage apply glue struts fuselage wing saddle weight assembly down book July 1984 173 Send $100 Catalog NEW LOW PRICE 95 Pbs supping 1 39 Direct Sales Only Work Horse95 KIORITZ 24 32 HP- 6A Lbs 179 Dealer Direct Now Distribute Sachs-Dolmar Engines Yea ger Machines ALL Y TO RUN INCLUDING 6 BOLT PROP HUB MOUNT MUFFLERS AVAILABLE AT EXTRA CHARGE Rear 3405 Cleveland Ave. SW Canton OH 44707 Phone 216 4846810 4844374 DIVISION ROUSH ENGINE