THIS PAIR simple models has given enjoyment per hour construction time other model can remember biggest regret cannot claim originator basic layout honor must go Mr Peter Fisher Noctule published Aeromodeler early 1988 Noctule small bat England first saw article wanted start building right away ever recovering accident burdened long arm cast wait until progressed short cast providing elbow movement before could actually start construction Due limitations reduced size 16 span used profile fuselage FAC Flying Aces Club NoCal model managed build parts short arm cast wasnt able cover assemble until later gave great feeling accomplish ment arrive first Indoor flying ses sion after cast off new mo del workmanship less perfect started flying model pleasantly surprised ease flight trimming really amazed usable center-of-gravity range Ive rubber come off prop hook trail rear hook model would continue glide minor oscilla tions excellent stability have translucent study aerodynamic structural geometry Noctule IIB flies gracefully overhead sultry summer day Want something different Build both bats Theres small rubber power larger CO2 Theyre fun easy build nice fliers indoors out HAl Backstrom also flown model outdoors fairly windy conditions no problems Indoor writer Bud Tenny rates tailless model stability well plane able work ceiling model about good anything have seen respect other Pennyplanes Easy Bs success model prompt ed contact Mr Fisher infor mation learned has extensive expe rience tailless models has several times held British duration records maintained separate records tailless planes also operates Performance Kits sells drawings several tailless designs Among other things purchased drawing Noctule II 34-inspan model powered small diesel wanted use Modella CO-2 motor re duced span 30 Noctule has flat single-surface airfoil Noctule II has airfoil sorts experience full-scale tailless de signs models some Barnaby Wain fans writings convinced airfoil sharp leading edge forward camber slight reflex would better what Mr Fisher used built Noctule II outdoor flying before finished weather turned sour stayed way months con sidered flying indoors Modella motor made too heavy able sur vive running wall morning looking hanging up checked some weights decided could build simple light pod Telco engine get weight down about two ounces reduced wing loading accept able level indoor flying change have flying Noctule II both doors out very successfully Due weather has done lot indoor flying hope have whetted interest point will try two versions maybe another variant will fly different basic construction models simple rather trying cover details pertinent points make construction assembly easier will covered Lets discuss rubber model Noctule IB first two wing halves built top other like fuselage sides go ing cover elevons cement wing halves first Cover wing halves flat before putting dihedral obtain smooth covering tape sections Japanese tissue flat surface rio wrinkles Apply adhesive wing halves place top tissue Make sure apply adhesive cross member dihedral break type model glue stick pre ferred adhesive use Dennisons Tombo glue dry trim excess tis sue crack wings dihedral break line Hold inner panel flat tip correct position shown drawing reglue cracked joints inner panels models warp very easily careful possible step Now glue wing halves center line leading edge supported dimension shown drawingwith 64 Model Aviation break line resting flat surface profile fuselage made A2 sheet balsa vertical grain like use hard sections sheet back wing leading edge progressively lighter balsa farther aft thrust bearing design borrowed 1r Flight columnist Ed Whitten allows almost infinite adjustment thrust line sure use soft alumi num bend generous radii use handle X-acto knife blade re moved course mandrel bending bearing remains glue pieces gether stall flying model Make loop /6-in rubber about twice length between prop hook rear hook dou ble over loop make four strands attach prop rear hooks Make sure model balances point shown add ballast necessary Test glide model making adjustments ele vons satisfactory glide obtained stall rubber single loop two strands wind about 200 turns Launch model observe flight pattern Cor rect zoom problems downthrust dives upthrust model has nearly no thrust offset except left thrust pro vided asymmetric prop location smooth pattern obtained crease number turns increments about 200 Make additional changes needed thrust line increase turns Low power turn adjustment best made warping vertical tail section Its best leave devon setting alone after good glide setting determined CO-2 version Noctule IIB sim ple built like smaller rubberpowered Noctule IS pod vertical tail straightforward A2 sheet balsa semblies bottom pod left open provide ventilation CO-2 tank fairing around engine made up scraps sheet block balsa can fashioned suit taste Make sure have room adjust thrust line Remove motor necessary did add retainer tank until position checked balance model uses Telco motor Brown M170 equivalent would well have obtained CO-2 motors other related supplies Peck-Polymers Box 2498 La Mesa CA 92044 telephone 1-619/448-18t8 company provides ex cellent service wings built same time der avoid two-left-wing problem outer panel leading edge pieces should shaped tapered rectangular section before gluing up wing After glue has dried sections well-stuck wax paper protecting plans use ra zor plane sandpaper block shape February 1990 65 foreground C02-powered Noctule IIB showing some its details Note CO2 motor neatly tucked nose block Against wall back smaller rubber-powered Noctule lB Its considerably simpler build once trimmed out flies like real champ Close-up details underside Noctule IIB showing open bottom pod allowing air circulation around CO2 tank Note thread binding landing gear geomet ric wing structure visible through tissue rubberband wing mounting system model sparked authors interest designing building flying Noctule lB Noctule IIB Noctule Mkl designed built 0 F W Fisher Isle Man Eng land Mr Fisher has built 25 variations flying wing over years Some models still hold UK flying wing records have won UK international competitions Full-Size Plans Available See Page 188 1/W BALSA SHEET SLANT FON ANHEDRAL I/16 BALSA SHEET HEIGHT TO MATCH LEADING EDGE TISSUE ANCHORADOV4 3/4 BALSA LEADING EDGE TAPER TO III6 3/16 SET I132 BALSA SHEET /R6 BALSA SEET -10 RETAIN C02 BOTTLE LOCATE AS REQUIRED P21116 BALSA SHEETFOR BALANCE / AF2 32 BALSAWIRETL ANCE COWL CARVED FROM BALSAAIRPOIL SECTION/ POD TOP VIEWI/SvBALSACOS MOlORTOP B SIDE SIEETING _____WIRE UIL POD SIDE VIEWBAlD COWLUGHT WHEELSv32 BALSA SHEET SOP AND SIDES NOTE IEL IS POWERED BY ___________ ___________TELCO DR BROWN MI 70 COZ LEACiNG EDGE ONLY SHOWN V1ri4VV FRONT VIEW AVIATION INOCTULE II B TRACING BY JOE DEMARCO IALL nIGHTS RESERVED rear wing about section shown pod side view reflex area should begin about 75% chord course section comes effectively flat near tip After accomplished wing panels re moved halves separated plane sanding block used shape leading edge Make sure shape leading edge opposite side taper trailing edge Sand wings essentially final sec tion Make vee cut leading edges straight cut trailing edges dihedral breaks Support inner panels flat raise outer panels dimension shown drawing glue position join halves centerline rubber version dont use doublers dihedral joints its easy enough make simple joints strong balsa Add tissue anchors dihedral break inner outer panel can covered separate sections required top surface optional landing gear installed use thread bind wing elevon sections should tack glued wing trailing edge appear paraltel trailing edge inner pan el Balance model shown before test gliding good glide obtained glue elevons firmly place nicest thing about CO-2 motors ability use low power test flying first powered flights have motor speed such model has flat pow ered glide using gas charge holding model few seconds before releasing Adjust turn pattern deflection vertical tail phase looks right increase power small increments correct unwanted flight patterns thrust line model has no sideways offset thrust line has couple degrees upthrust make climb rather just go fast Left The rubber-powered Noctule lB has simple structure teresting lines spans 16 has simple profile fuselage wide center-of-gravity tolerance flies outdoors just well Above Noctule IIB larger bit complex spans 30 powered Telco motor Brown MJ7O equivalent will work just well Telco keeps light enough fly indoors 66 Model Aviation 050x 1/811MOTOR STICK 020USE 4 PLASTIC SOFT ALUM3/32 x 3/16WIREPROP -- 1 HF DIHEDRAL MOTOR STICK 3/32 BALSA 29 APPROX 200 ADJUST AS REQUIRED BY AL BACKSTROMI NOCTULE B February 1990 67
Edition: Model Aviation - 1990/02
Page Numbers: 64, 65, 66, 67
THIS PAIR simple models has given enjoyment per hour construction time other model can remember biggest regret cannot claim originator basic layout honor must go Mr Peter Fisher Noctule published Aeromodeler early 1988 Noctule small bat England first saw article wanted start building right away ever recovering accident burdened long arm cast wait until progressed short cast providing elbow movement before could actually start construction Due limitations reduced size 16 span used profile fuselage FAC Flying Aces Club NoCal model managed build parts short arm cast wasnt able cover assemble until later gave great feeling accomplish ment arrive first Indoor flying ses sion after cast off new mo del workmanship less perfect started flying model pleasantly surprised ease flight trimming really amazed usable center-of-gravity range Ive rubber come off prop hook trail rear hook model would continue glide minor oscilla tions excellent stability have translucent study aerodynamic structural geometry Noctule IIB flies gracefully overhead sultry summer day Want something different Build both bats Theres small rubber power larger CO2 Theyre fun easy build nice fliers indoors out HAl Backstrom also flown model outdoors fairly windy conditions no problems Indoor writer Bud Tenny rates tailless model stability well plane able work ceiling model about good anything have seen respect other Pennyplanes Easy Bs success model prompt ed contact Mr Fisher infor mation learned has extensive expe rience tailless models has several times held British duration records maintained separate records tailless planes also operates Performance Kits sells drawings several tailless designs Among other things purchased drawing Noctule II 34-inspan model powered small diesel wanted use Modella CO-2 motor re duced span 30 Noctule has flat single-surface airfoil Noctule II has airfoil sorts experience full-scale tailless de signs models some Barnaby Wain fans writings convinced airfoil sharp leading edge forward camber slight reflex would better what Mr Fisher used built Noctule II outdoor flying before finished weather turned sour stayed way months con sidered flying indoors Modella motor made too heavy able sur vive running wall morning looking hanging up checked some weights decided could build simple light pod Telco engine get weight down about two ounces reduced wing loading accept able level indoor flying change have flying Noctule II both doors out very successfully Due weather has done lot indoor flying hope have whetted interest point will try two versions maybe another variant will fly different basic construction models simple rather trying cover details pertinent points make construction assembly easier will covered Lets discuss rubber model Noctule IB first two wing halves built top other like fuselage sides go ing cover elevons cement wing halves first Cover wing halves flat before putting dihedral obtain smooth covering tape sections Japanese tissue flat surface rio wrinkles Apply adhesive wing halves place top tissue Make sure apply adhesive cross member dihedral break type model glue stick pre ferred adhesive use Dennisons Tombo glue dry trim excess tis sue crack wings dihedral break line Hold inner panel flat tip correct position shown drawing reglue cracked joints inner panels models warp very easily careful possible step Now glue wing halves center line leading edge supported dimension shown drawingwith 64 Model Aviation break line resting flat surface profile fuselage made A2 sheet balsa vertical grain like use hard sections sheet back wing leading edge progressively lighter balsa farther aft thrust bearing design borrowed 1r Flight columnist Ed Whitten allows almost infinite adjustment thrust line sure use soft alumi num bend generous radii use handle X-acto knife blade re moved course mandrel bending bearing remains glue pieces gether stall flying model Make loop /6-in rubber about twice length between prop hook rear hook dou ble over loop make four strands attach prop rear hooks Make sure model balances point shown add ballast necessary Test glide model making adjustments ele vons satisfactory glide obtained stall rubber single loop two strands wind about 200 turns Launch model observe flight pattern Cor rect zoom problems downthrust dives upthrust model has nearly no thrust offset except left thrust pro vided asymmetric prop location smooth pattern obtained crease number turns increments about 200 Make additional changes needed thrust line increase turns Low power turn adjustment best made warping vertical tail section Its best leave devon setting alone after good glide setting determined CO-2 version Noctule IIB sim ple built like smaller rubberpowered Noctule IS pod vertical tail straightforward A2 sheet balsa semblies bottom pod left open provide ventilation CO-2 tank fairing around engine made up scraps sheet block balsa can fashioned suit taste Make sure have room adjust thrust line Remove motor necessary did add retainer tank until position checked balance model uses Telco motor Brown M170 equivalent would well have obtained CO-2 motors other related supplies Peck-Polymers Box 2498 La Mesa CA 92044 telephone 1-619/448-18t8 company provides ex cellent service wings built same time der avoid two-left-wing problem outer panel leading edge pieces should shaped tapered rectangular section before gluing up wing After glue has dried sections well-stuck wax paper protecting plans use ra zor plane sandpaper block shape February 1990 65 foreground C02-powered Noctule IIB showing some its details Note CO2 motor neatly tucked nose block Against wall back smaller rubber-powered Noctule lB Its considerably simpler build once trimmed out flies like real champ Close-up details underside Noctule IIB showing open bottom pod allowing air circulation around CO2 tank Note thread binding landing gear geomet ric wing structure visible through tissue rubberband wing mounting system model sparked authors interest designing building flying Noctule lB Noctule IIB Noctule Mkl designed built 0 F W Fisher Isle Man Eng land Mr Fisher has built 25 variations flying wing over years Some models still hold UK flying wing records have won UK international competitions Full-Size Plans Available See Page 188 1/W BALSA SHEET SLANT FON ANHEDRAL I/16 BALSA SHEET HEIGHT TO MATCH LEADING EDGE TISSUE ANCHORADOV4 3/4 BALSA LEADING EDGE TAPER TO III6 3/16 SET I132 BALSA SHEET /R6 BALSA SEET -10 RETAIN C02 BOTTLE LOCATE AS REQUIRED P21116 BALSA SHEETFOR BALANCE / AF2 32 BALSAWIRETL ANCE COWL CARVED FROM BALSAAIRPOIL SECTION/ POD TOP VIEWI/SvBALSACOS MOlORTOP B SIDE SIEETING _____WIRE UIL POD SIDE VIEWBAlD COWLUGHT WHEELSv32 BALSA SHEET SOP AND SIDES NOTE IEL IS POWERED BY ___________ ___________TELCO DR BROWN MI 70 COZ LEACiNG EDGE ONLY SHOWN V1ri4VV FRONT VIEW AVIATION INOCTULE II B TRACING BY JOE DEMARCO IALL nIGHTS RESERVED rear wing about section shown pod side view reflex area should begin about 75% chord course section comes effectively flat near tip After accomplished wing panels re moved halves separated plane sanding block used shape leading edge Make sure shape leading edge opposite side taper trailing edge Sand wings essentially final sec tion Make vee cut leading edges straight cut trailing edges dihedral breaks Support inner panels flat raise outer panels dimension shown drawing glue position join halves centerline rubber version dont use doublers dihedral joints its easy enough make simple joints strong balsa Add tissue anchors dihedral break inner outer panel can covered separate sections required top surface optional landing gear installed use thread bind wing elevon sections should tack glued wing trailing edge appear paraltel trailing edge inner pan el Balance model shown before test gliding good glide obtained glue elevons firmly place nicest thing about CO-2 motors ability use low power test flying first powered flights have motor speed such model has flat pow ered glide using gas charge holding model few seconds before releasing Adjust turn pattern deflection vertical tail phase looks right increase power small increments correct unwanted flight patterns thrust line model has no sideways offset thrust line has couple degrees upthrust make climb rather just go fast Left The rubber-powered Noctule lB has simple structure teresting lines spans 16 has simple profile fuselage wide center-of-gravity tolerance flies outdoors just well Above Noctule IIB larger bit complex spans 30 powered Telco motor Brown MJ7O equivalent will work just well Telco keeps light enough fly indoors 66 Model Aviation 050x 1/811MOTOR STICK 020USE 4 PLASTIC SOFT ALUM3/32 x 3/16WIREPROP -- 1 HF DIHEDRAL MOTOR STICK 3/32 BALSA 29 APPROX 200 ADJUST AS REQUIRED BY AL BACKSTROMI NOCTULE B February 1990 67
Edition: Model Aviation - 1990/02
Page Numbers: 64, 65, 66, 67
THIS PAIR simple models has given enjoyment per hour construction time other model can remember biggest regret cannot claim originator basic layout honor must go Mr Peter Fisher Noctule published Aeromodeler early 1988 Noctule small bat England first saw article wanted start building right away ever recovering accident burdened long arm cast wait until progressed short cast providing elbow movement before could actually start construction Due limitations reduced size 16 span used profile fuselage FAC Flying Aces Club NoCal model managed build parts short arm cast wasnt able cover assemble until later gave great feeling accomplish ment arrive first Indoor flying ses sion after cast off new mo del workmanship less perfect started flying model pleasantly surprised ease flight trimming really amazed usable center-of-gravity range Ive rubber come off prop hook trail rear hook model would continue glide minor oscilla tions excellent stability have translucent study aerodynamic structural geometry Noctule IIB flies gracefully overhead sultry summer day Want something different Build both bats Theres small rubber power larger CO2 Theyre fun easy build nice fliers indoors out HAl Backstrom also flown model outdoors fairly windy conditions no problems Indoor writer Bud Tenny rates tailless model stability well plane able work ceiling model about good anything have seen respect other Pennyplanes Easy Bs success model prompt ed contact Mr Fisher infor mation learned has extensive expe rience tailless models has several times held British duration records maintained separate records tailless planes also operates Performance Kits sells drawings several tailless designs Among other things purchased drawing Noctule II 34-inspan model powered small diesel wanted use Modella CO-2 motor re duced span 30 Noctule has flat single-surface airfoil Noctule II has airfoil sorts experience full-scale tailless de signs models some Barnaby Wain fans writings convinced airfoil sharp leading edge forward camber slight reflex would better what Mr Fisher used built Noctule II outdoor flying before finished weather turned sour stayed way months con sidered flying indoors Modella motor made too heavy able sur vive running wall morning looking hanging up checked some weights decided could build simple light pod Telco engine get weight down about two ounces reduced wing loading accept able level indoor flying change have flying Noctule II both doors out very successfully Due weather has done lot indoor flying hope have whetted interest point will try two versions maybe another variant will fly different basic construction models simple rather trying cover details pertinent points make construction assembly easier will covered Lets discuss rubber model Noctule IB first two wing halves built top other like fuselage sides go ing cover elevons cement wing halves first Cover wing halves flat before putting dihedral obtain smooth covering tape sections Japanese tissue flat surface rio wrinkles Apply adhesive wing halves place top tissue Make sure apply adhesive cross member dihedral break type model glue stick pre ferred adhesive use Dennisons Tombo glue dry trim excess tis sue crack wings dihedral break line Hold inner panel flat tip correct position shown drawing reglue cracked joints inner panels models warp very easily careful possible step Now glue wing halves center line leading edge supported dimension shown drawingwith 64 Model Aviation break line resting flat surface profile fuselage made A2 sheet balsa vertical grain like use hard sections sheet back wing leading edge progressively lighter balsa farther aft thrust bearing design borrowed 1r Flight columnist Ed Whitten allows almost infinite adjustment thrust line sure use soft alumi num bend generous radii use handle X-acto knife blade re moved course mandrel bending bearing remains glue pieces gether stall flying model Make loop /6-in rubber about twice length between prop hook rear hook dou ble over loop make four strands attach prop rear hooks Make sure model balances point shown add ballast necessary Test glide model making adjustments ele vons satisfactory glide obtained stall rubber single loop two strands wind about 200 turns Launch model observe flight pattern Cor rect zoom problems downthrust dives upthrust model has nearly no thrust offset except left thrust pro vided asymmetric prop location smooth pattern obtained crease number turns increments about 200 Make additional changes needed thrust line increase turns Low power turn adjustment best made warping vertical tail section Its best leave devon setting alone after good glide setting determined CO-2 version Noctule IIB sim ple built like smaller rubberpowered Noctule IS pod vertical tail straightforward A2 sheet balsa semblies bottom pod left open provide ventilation CO-2 tank fairing around engine made up scraps sheet block balsa can fashioned suit taste Make sure have room adjust thrust line Remove motor necessary did add retainer tank until position checked balance model uses Telco motor Brown M170 equivalent would well have obtained CO-2 motors other related supplies Peck-Polymers Box 2498 La Mesa CA 92044 telephone 1-619/448-18t8 company provides ex cellent service wings built same time der avoid two-left-wing problem outer panel leading edge pieces should shaped tapered rectangular section before gluing up wing After glue has dried sections well-stuck wax paper protecting plans use ra zor plane sandpaper block shape February 1990 65 foreground C02-powered Noctule IIB showing some its details Note CO2 motor neatly tucked nose block Against wall back smaller rubber-powered Noctule lB Its considerably simpler build once trimmed out flies like real champ Close-up details underside Noctule IIB showing open bottom pod allowing air circulation around CO2 tank Note thread binding landing gear geomet ric wing structure visible through tissue rubberband wing mounting system model sparked authors interest designing building flying Noctule lB Noctule IIB Noctule Mkl designed built 0 F W Fisher Isle Man Eng land Mr Fisher has built 25 variations flying wing over years Some models still hold UK flying wing records have won UK international competitions Full-Size Plans Available See Page 188 1/W BALSA SHEET SLANT FON ANHEDRAL I/16 BALSA SHEET HEIGHT TO MATCH LEADING EDGE TISSUE ANCHORADOV4 3/4 BALSA LEADING EDGE TAPER TO III6 3/16 SET I132 BALSA SHEET /R6 BALSA SEET -10 RETAIN C02 BOTTLE LOCATE AS REQUIRED P21116 BALSA SHEETFOR BALANCE / AF2 32 BALSAWIRETL ANCE COWL CARVED FROM BALSAAIRPOIL SECTION/ POD TOP VIEWI/SvBALSACOS MOlORTOP B SIDE SIEETING _____WIRE UIL POD SIDE VIEWBAlD COWLUGHT WHEELSv32 BALSA SHEET SOP AND SIDES NOTE IEL IS POWERED BY ___________ ___________TELCO DR BROWN MI 70 COZ LEACiNG EDGE ONLY SHOWN V1ri4VV FRONT VIEW AVIATION INOCTULE II B TRACING BY JOE DEMARCO IALL nIGHTS RESERVED rear wing about section shown pod side view reflex area should begin about 75% chord course section comes effectively flat near tip After accomplished wing panels re moved halves separated plane sanding block used shape leading edge Make sure shape leading edge opposite side taper trailing edge Sand wings essentially final sec tion Make vee cut leading edges straight cut trailing edges dihedral breaks Support inner panels flat raise outer panels dimension shown drawing glue position join halves centerline rubber version dont use doublers dihedral joints its easy enough make simple joints strong balsa Add tissue anchors dihedral break inner outer panel can covered separate sections required top surface optional landing gear installed use thread bind wing elevon sections should tack glued wing trailing edge appear paraltel trailing edge inner pan el Balance model shown before test gliding good glide obtained glue elevons firmly place nicest thing about CO-2 motors ability use low power test flying first powered flights have motor speed such model has flat pow ered glide using gas charge holding model few seconds before releasing Adjust turn pattern deflection vertical tail phase looks right increase power small increments correct unwanted flight patterns thrust line model has no sideways offset thrust line has couple degrees upthrust make climb rather just go fast Left The rubber-powered Noctule lB has simple structure teresting lines spans 16 has simple profile fuselage wide center-of-gravity tolerance flies outdoors just well Above Noctule IIB larger bit complex spans 30 powered Telco motor Brown MJ7O equivalent will work just well Telco keeps light enough fly indoors 66 Model Aviation 050x 1/811MOTOR STICK 020USE 4 PLASTIC SOFT ALUM3/32 x 3/16WIREPROP -- 1 HF DIHEDRAL MOTOR STICK 3/32 BALSA 29 APPROX 200 ADJUST AS REQUIRED BY AL BACKSTROMI NOCTULE B February 1990 67
Edition: Model Aviation - 1990/02
Page Numbers: 64, 65, 66, 67
THIS PAIR simple models has given enjoyment per hour construction time other model can remember biggest regret cannot claim originator basic layout honor must go Mr Peter Fisher Noctule published Aeromodeler early 1988 Noctule small bat England first saw article wanted start building right away ever recovering accident burdened long arm cast wait until progressed short cast providing elbow movement before could actually start construction Due limitations reduced size 16 span used profile fuselage FAC Flying Aces Club NoCal model managed build parts short arm cast wasnt able cover assemble until later gave great feeling accomplish ment arrive first Indoor flying ses sion after cast off new mo del workmanship less perfect started flying model pleasantly surprised ease flight trimming really amazed usable center-of-gravity range Ive rubber come off prop hook trail rear hook model would continue glide minor oscilla tions excellent stability have translucent study aerodynamic structural geometry Noctule IIB flies gracefully overhead sultry summer day Want something different Build both bats Theres small rubber power larger CO2 Theyre fun easy build nice fliers indoors out HAl Backstrom also flown model outdoors fairly windy conditions no problems Indoor writer Bud Tenny rates tailless model stability well plane able work ceiling model about good anything have seen respect other Pennyplanes Easy Bs success model prompt ed contact Mr Fisher infor mation learned has extensive expe rience tailless models has several times held British duration records maintained separate records tailless planes also operates Performance Kits sells drawings several tailless designs Among other things purchased drawing Noctule II 34-inspan model powered small diesel wanted use Modella CO-2 motor re duced span 30 Noctule has flat single-surface airfoil Noctule II has airfoil sorts experience full-scale tailless de signs models some Barnaby Wain fans writings convinced airfoil sharp leading edge forward camber slight reflex would better what Mr Fisher used built Noctule II outdoor flying before finished weather turned sour stayed way months con sidered flying indoors Modella motor made too heavy able sur vive running wall morning looking hanging up checked some weights decided could build simple light pod Telco engine get weight down about two ounces reduced wing loading accept able level indoor flying change have flying Noctule II both doors out very successfully Due weather has done lot indoor flying hope have whetted interest point will try two versions maybe another variant will fly different basic construction models simple rather trying cover details pertinent points make construction assembly easier will covered Lets discuss rubber model Noctule IB first two wing halves built top other like fuselage sides go ing cover elevons cement wing halves first Cover wing halves flat before putting dihedral obtain smooth covering tape sections Japanese tissue flat surface rio wrinkles Apply adhesive wing halves place top tissue Make sure apply adhesive cross member dihedral break type model glue stick pre ferred adhesive use Dennisons Tombo glue dry trim excess tis sue crack wings dihedral break line Hold inner panel flat tip correct position shown drawing reglue cracked joints inner panels models warp very easily careful possible step Now glue wing halves center line leading edge supported dimension shown drawingwith 64 Model Aviation break line resting flat surface profile fuselage made A2 sheet balsa vertical grain like use hard sections sheet back wing leading edge progressively lighter balsa farther aft thrust bearing design borrowed 1r Flight columnist Ed Whitten allows almost infinite adjustment thrust line sure use soft alumi num bend generous radii use handle X-acto knife blade re moved course mandrel bending bearing remains glue pieces gether stall flying model Make loop /6-in rubber about twice length between prop hook rear hook dou ble over loop make four strands attach prop rear hooks Make sure model balances point shown add ballast necessary Test glide model making adjustments ele vons satisfactory glide obtained stall rubber single loop two strands wind about 200 turns Launch model observe flight pattern Cor rect zoom problems downthrust dives upthrust model has nearly no thrust offset except left thrust pro vided asymmetric prop location smooth pattern obtained crease number turns increments about 200 Make additional changes needed thrust line increase turns Low power turn adjustment best made warping vertical tail section Its best leave devon setting alone after good glide setting determined CO-2 version Noctule IIB sim ple built like smaller rubberpowered Noctule IS pod vertical tail straightforward A2 sheet balsa semblies bottom pod left open provide ventilation CO-2 tank fairing around engine made up scraps sheet block balsa can fashioned suit taste Make sure have room adjust thrust line Remove motor necessary did add retainer tank until position checked balance model uses Telco motor Brown M170 equivalent would well have obtained CO-2 motors other related supplies Peck-Polymers Box 2498 La Mesa CA 92044 telephone 1-619/448-18t8 company provides ex cellent service wings built same time der avoid two-left-wing problem outer panel leading edge pieces should shaped tapered rectangular section before gluing up wing After glue has dried sections well-stuck wax paper protecting plans use ra zor plane sandpaper block shape February 1990 65 foreground C02-powered Noctule IIB showing some its details Note CO2 motor neatly tucked nose block Against wall back smaller rubber-powered Noctule lB Its considerably simpler build once trimmed out flies like real champ Close-up details underside Noctule IIB showing open bottom pod allowing air circulation around CO2 tank Note thread binding landing gear geomet ric wing structure visible through tissue rubberband wing mounting system model sparked authors interest designing building flying Noctule lB Noctule IIB Noctule Mkl designed built 0 F W Fisher Isle Man Eng land Mr Fisher has built 25 variations flying wing over years Some models still hold UK flying wing records have won UK international competitions Full-Size Plans Available See Page 188 1/W BALSA SHEET SLANT FON ANHEDRAL I/16 BALSA SHEET HEIGHT TO MATCH LEADING EDGE TISSUE ANCHORADOV4 3/4 BALSA LEADING EDGE TAPER TO III6 3/16 SET I132 BALSA SHEET /R6 BALSA SEET -10 RETAIN C02 BOTTLE LOCATE AS REQUIRED P21116 BALSA SHEETFOR BALANCE / AF2 32 BALSAWIRETL ANCE COWL CARVED FROM BALSAAIRPOIL SECTION/ POD TOP VIEWI/SvBALSACOS MOlORTOP B SIDE SIEETING _____WIRE UIL POD SIDE VIEWBAlD COWLUGHT WHEELSv32 BALSA SHEET SOP AND SIDES NOTE IEL IS POWERED BY ___________ ___________TELCO DR BROWN MI 70 COZ LEACiNG EDGE ONLY SHOWN V1ri4VV FRONT VIEW AVIATION INOCTULE II B TRACING BY JOE DEMARCO IALL nIGHTS RESERVED rear wing about section shown pod side view reflex area should begin about 75% chord course section comes effectively flat near tip After accomplished wing panels re moved halves separated plane sanding block used shape leading edge Make sure shape leading edge opposite side taper trailing edge Sand wings essentially final sec tion Make vee cut leading edges straight cut trailing edges dihedral breaks Support inner panels flat raise outer panels dimension shown drawing glue position join halves centerline rubber version dont use doublers dihedral joints its easy enough make simple joints strong balsa Add tissue anchors dihedral break inner outer panel can covered separate sections required top surface optional landing gear installed use thread bind wing elevon sections should tack glued wing trailing edge appear paraltel trailing edge inner pan el Balance model shown before test gliding good glide obtained glue elevons firmly place nicest thing about CO-2 motors ability use low power test flying first powered flights have motor speed such model has flat pow ered glide using gas charge holding model few seconds before releasing Adjust turn pattern deflection vertical tail phase looks right increase power small increments correct unwanted flight patterns thrust line model has no sideways offset thrust line has couple degrees upthrust make climb rather just go fast Left The rubber-powered Noctule lB has simple structure teresting lines spans 16 has simple profile fuselage wide center-of-gravity tolerance flies outdoors just well Above Noctule IIB larger bit complex spans 30 powered Telco motor Brown MJ7O equivalent will work just well Telco keeps light enough fly indoors 66 Model Aviation 050x 1/811MOTOR STICK 020USE 4 PLASTIC SOFT ALUM3/32 x 3/16WIREPROP -- 1 HF DIHEDRAL MOTOR STICK 3/32 BALSA 29 APPROX 200 ADJUST AS REQUIRED BY AL BACKSTROMI NOCTULE B February 1990 67