Control Line Scale Bill Boss FLYING IN THE WIND dreaded things can happen Control Line Scale meet wind come up heavy put fear hearts of competitors flying time time contestant makes Dont decision fly model day just situation leads Orin Humphries Scale column ist Flying Lines newsletter News Northwest CL Model Aviation make statement typical Scale model can 10 years old have 70 less flights should fly wind risk work Orin has learned perhaps have too through sometimes bitter experience fly wind has following advice have Control Line model flies through constantly-changing atmosphere moment wind dead calm next blowing quite hard perhaps has changed direction speed plane through air com bines speed direction air itself make relative wind over wing model relative wind determines much lift being generat ed moment moment head wind model balloons gaining altitude wind out board wingtip tail model sags losing altitude question hand What can keep model sagging losing altitude number answers might get question Probably common answer would gain much altitude possible can make up speed diving portion circle model will sagging thus able maintain great-looking Sport Scale Meyers 200D 1 work Mike Weishans Ferndaie Mi model scratch-built scale 2 foot Dave Dulaitis plans uses 45 engine Air Force Sgt Gordon Ford builds large USAF scale models files beautifully kinds weather shot Roland Baites taken 1972 shows Sgt Fords fine Douglas C-47 R flaps down settling smooth landing Read column learn fly Scale CL model safely wind March 1985 71 schematic Ciancy Arnolds UlTronlcs auxiliary control system October 1984 issue couple omissions updated version Bill talks about flying CL models windwithout crashing Read column study sketchthen fly fear applies CL modelsnot Just Scale work very light wind conditions nrtv-p-hrp tn MOA CRAPT JIM ROBERTS Rt2Box 2547 La Grande OR 97850 503- 963-0596 VISA Welcome presents TOPCAT Wing Span 577 Engine 35-50 Excellent trainer High-lift flat bottom airfoil pro vides very stable slow-flight capabilities Tail drag ger may easily converted tricycle gear Hand-picked spruce balsa Light weight accurate durable Hand shaped no die cut parts Dealer Inquiries Invited accompanying Sketches B show two different conditions encounter flying models calm well during windy conditions can also simulate sketch condi tions phonograph record held front level between fingertips side record rim record represents flight path model no-wind condition shown Sketch Now record about four five inches above tabletop youre sitting slowly tip record until edge contacts table other edge higher before shown Sketch B records rim now repre sents flight path model let climb wind result climbing wind seen opposite side circle low pullout height higher let model climb upwind side cir cle lower pullout height will become downwind side circle until flight-lap comes model will merge third planet sun good old Mother Earth model sags going downwind because no longer has enough wind over wing diving model will produce enough speed make up loss wind bottom dive have raise nose make [iftbut just isnt No doesnt sppear climbing diving proper procedure flying wind Orin says best way fly vindy day work hard allowing model rise foot Ahen heading wind far effective minimizer sag ee going downwind foot height iained above level-flight path xpwind side circle foot will e below flight path downwind ide circle Orin goes say Sgt Gordon Ford Air Forces official model build er specializes large multi-engined models never seems have trouble flying models no matter what wind conditions models always fly dead-level attitude watch Sgt Ford fly would see flying hand always motion model comes wind times has full Down elevator model flying downwind ap plies sufficient Up elevator maintain level flight lesson take positive action times jerky fashion smooth manner up down back amount control apply particular model will depend things will use some want successful flight Above perhaps important must see yourself proper light spectator pilot means dont watch model fly altitudes its best interest should react instantly effectively make model track want Dont forget youre running show center circle have discussed airborne part flight what about takeoff landing takeoff should present little trouble anyone Most would agree should give yourself much circle possible nice steady taxi takeoff before getting upwind por tion circle landing however could little difficult condi tions windy impor tant things remember landing during windy conditions dont rush Take time several laps necessary get model within foot ground level flight make touch down will depend amount wind wing loading model model heavy might cut power let model set itself down upwind side circle set down power just past upwind portion circle object get model ground point circle will allow bring models ground speed down will become airborne again reaches upwind side circle again lighter model difficult land ing becomes very windy conditions solution problem practice proper attitude little determination too can con quer wind CorrectIon October 1984 column featured Clancy Arnolds U/Tronics con trol system must admit omitted couple resistor values encod er schematic Therefore presenting encoder schematic again ap propriate resistor values Resistor R-16 22K ohms R-13 36K ohms Also better defined connection point NESO44N chip terminal 16 R13 Switch 5-1 apologize error hope drawing omissions have caused too much inconvenience anyone Send items CL Scale Bill Boss 77-06269th St New Hyde Park NY 11040 CL Navy Carrier/Perry Continued page 72 event also subject proposal would apply rule Racing events know whether will survive CLCB initial ballot does deserve some serious consideration principal concern being voiced against proposal quality controlworried fuel will high quality variations allowable mix formula will produce inconsisten cies sufficient cause problems Car rier engines critical idle require ment proposal can modified strictly specify nitromethane contest think would beneficial events cost competing would reduced considerably engine life should increase well proposal allow mufflers Car rier should also considered very care fully availability paved flying sites locations remote enough un muffled engines tolerated particu larly Class ITs extremely limited Changing rules allow use mufflers would encourage experimenta March 1985 151 CL Scale/Boss Continued page 71
Edition: Model Aviation - 1985/03
Page Numbers: 71, 151
Edition: Model Aviation - 1985/03
Page Numbers: 71, 151
Control Line Scale Bill Boss FLYING IN THE WIND dreaded things can happen Control Line Scale meet wind come up heavy put fear hearts of competitors flying time time contestant makes Dont decision fly model day just situation leads Orin Humphries Scale column ist Flying Lines newsletter News Northwest CL Model Aviation make statement typical Scale model can 10 years old have 70 less flights should fly wind risk work Orin has learned perhaps have too through sometimes bitter experience fly wind has following advice have Control Line model flies through constantly-changing atmosphere moment wind dead calm next blowing quite hard perhaps has changed direction speed plane through air com bines speed direction air itself make relative wind over wing model relative wind determines much lift being generat ed moment moment head wind model balloons gaining altitude wind out board wingtip tail model sags losing altitude question hand What can keep model sagging losing altitude number answers might get question Probably common answer would gain much altitude possible can make up speed diving portion circle model will sagging thus able maintain great-looking Sport Scale Meyers 200D 1 work Mike Weishans Ferndaie Mi model scratch-built scale 2 foot Dave Dulaitis plans uses 45 engine Air Force Sgt Gordon Ford builds large USAF scale models files beautifully kinds weather shot Roland Baites taken 1972 shows Sgt Fords fine Douglas C-47 R flaps down settling smooth landing Read column learn fly Scale CL model safely wind March 1985 71 schematic Ciancy Arnolds UlTronlcs auxiliary control system October 1984 issue couple omissions updated version Bill talks about flying CL models windwithout crashing Read column study sketchthen fly fear applies CL modelsnot Just Scale work very light wind conditions nrtv-p-hrp tn MOA CRAPT JIM ROBERTS Rt2Box 2547 La Grande OR 97850 503- 963-0596 VISA Welcome presents TOPCAT Wing Span 577 Engine 35-50 Excellent trainer High-lift flat bottom airfoil pro vides very stable slow-flight capabilities Tail drag ger may easily converted tricycle gear Hand-picked spruce balsa Light weight accurate durable Hand shaped no die cut parts Dealer Inquiries Invited accompanying Sketches B show two different conditions encounter flying models calm well during windy conditions can also simulate sketch condi tions phonograph record held front level between fingertips side record rim record represents flight path model no-wind condition shown Sketch Now record about four five inches above tabletop youre sitting slowly tip record until edge contacts table other edge higher before shown Sketch B records rim now repre sents flight path model let climb wind result climbing wind seen opposite side circle low pullout height higher let model climb upwind side cir cle lower pullout height will become downwind side circle until flight-lap comes model will merge third planet sun good old Mother Earth model sags going downwind because no longer has enough wind over wing diving model will produce enough speed make up loss wind bottom dive have raise nose make [iftbut just isnt No doesnt sppear climbing diving proper procedure flying wind Orin says best way fly vindy day work hard allowing model rise foot Ahen heading wind far effective minimizer sag ee going downwind foot height iained above level-flight path xpwind side circle foot will e below flight path downwind ide circle Orin goes say Sgt Gordon Ford Air Forces official model build er specializes large multi-engined models never seems have trouble flying models no matter what wind conditions models always fly dead-level attitude watch Sgt Ford fly would see flying hand always motion model comes wind times has full Down elevator model flying downwind ap plies sufficient Up elevator maintain level flight lesson take positive action times jerky fashion smooth manner up down back amount control apply particular model will depend things will use some want successful flight Above perhaps important must see yourself proper light spectator pilot means dont watch model fly altitudes its best interest should react instantly effectively make model track want Dont forget youre running show center circle have discussed airborne part flight what about takeoff landing takeoff should present little trouble anyone Most would agree should give yourself much circle possible nice steady taxi takeoff before getting upwind por tion circle landing however could little difficult condi tions windy impor tant things remember landing during windy conditions dont rush Take time several laps necessary get model within foot ground level flight make touch down will depend amount wind wing loading model model heavy might cut power let model set itself down upwind side circle set down power just past upwind portion circle object get model ground point circle will allow bring models ground speed down will become airborne again reaches upwind side circle again lighter model difficult land ing becomes very windy conditions solution problem practice proper attitude little determination too can con quer wind CorrectIon October 1984 column featured Clancy Arnolds U/Tronics con trol system must admit omitted couple resistor values encod er schematic Therefore presenting encoder schematic again ap propriate resistor values Resistor R-16 22K ohms R-13 36K ohms Also better defined connection point NESO44N chip terminal 16 R13 Switch 5-1 apologize error hope drawing omissions have caused too much inconvenience anyone Send items CL Scale Bill Boss 77-06269th St New Hyde Park NY 11040 CL Navy Carrier/Perry Continued page 72 event also subject proposal would apply rule Racing events know whether will survive CLCB initial ballot does deserve some serious consideration principal concern being voiced against proposal quality controlworried fuel will high quality variations allowable mix formula will produce inconsisten cies sufficient cause problems Car rier engines critical idle require ment proposal can modified strictly specify nitromethane contest think would beneficial events cost competing would reduced considerably engine life should increase well proposal allow mufflers Car rier should also considered very care fully availability paved flying sites locations remote enough un muffled engines tolerated particu larly Class ITs extremely limited Changing rules allow use mufflers would encourage experimenta March 1985 151 CL Scale/Boss Continued page 71
