NO OCR TEXT NO OCR TEXT before tben wing braces D-4 D-5 can glued bottom spar After have installed end rib W-2 added After wing panels completed joined center section Use slowdrying glue block panels correct dihedral angle let dry top spars vertical webbing now added vertical webbing cut /16 C-grain Sheet center section sheeting going between spars cutout made front sheeting As plywood hold-down support Plywood also inserted rear hold-down bolt goes Now drill holes 10-32 nylon bolts front hold-down tab screwed 1/ plywood installing flaps its best complete rear wing section now Turn wing over add rear A2 x basswood section Basswood seems warp less other woods Plywood could also used its hard find Y32 plywood thats warped section wing warped flaps may fit correctly Fill between ribs trailing edge 3As x a /s x 3As balsa spar 106 Model Aviation c wire landing-gear legs attached Vs plywood withThe nose section planked light balsa Maple engine nylon clamps Spruce sheeting covers thismounts drilled 6-32 bolts blind nuts finished airframe prior covering open framework strong covering material recommended Rudder elevator tail wheel details Mount tail wheel Carl Goldberg similar bracket December 1995 107 wingtips laminated very light /4 sheet balsa TheThe flap servo mounted x /s plywood rails Centerwing ribs cut sturdier C-grainsection sheeting added next Wing well-stressed /W2 _________ _____ W4W3_____ W2 IT __________ I-SERVc ____078 WIREH9RBALSA7\FILNsETI/I6PL --1i- III h 1/18 SH \ ini1/16 RIBS ALL GUSSETS I/BLIrEPLYI/2X3/4 LE ,I INSETD2I 1/16 _____ _____ _________ ____ ____W2 1W2PLY b ___W2W2 W2 W2W2W2W2___WI WI WI _____ _____________ jONLY MAKE FLAP FROMI1/16 XI/4SPRUCE 3/32PLY04 FLAPS ARE OPTIONAL- - /T 1 IFLAPDI3/16 T SHOWN ON LEFT WING3/16 6rY1/16 WEBBING I/16PLDSI/32BASSWOODSGLASSBOTTOD3SH ____ _______ ____M-I/8X3/81/32 BASSWOOD HINGA —_____ ____ONBOTTOM XI/4 ______ Y ___ _____ ____ -3/16 SO SPRUCE PUT- - ~- ___r ______________ ________ ___________ 5/32X 1/4 TE 3/16 FILL10-32 NYLON BOLTSBALSA SPARS OUTER PANNELS TEPLJ F4/ C28C31/8PLY CUT SLIGHTLY OVER0-32 BLIND SIZESBEVELNUTSC3 _______________ _________ 3/16DOWEL-—--------------DI 3/32PLY MOTOR PLATE I/8PLYNO2SCRE WING HOLD- OWN FIBERGLASSASTIC \c- -1/BLITEPLY3/16x3/B / I/8X3/I6 _ _PLYTANKLITEPLY I/4SHEE \FJ I/2L -_ATTERY INDICATES FLOOR _3/1650W3 _3/16SQ DRAIN TUBE-.- F23/16I/32PLY \~F4SPRUCEDIAGONALS 3/I6SHEET I_ _ ml 2REQ -___EAR LGj CRACK8 EPOXY---- LG_ TE- RECV\. \ R 1/16 BALSA SHEETING TO HER FEATHER IN1/8 MW. -- -0 -POLYHEDRAL DETAIL 1/32 PLY/I/B MUSICJl/8PLY_______________ DOUBLER STRIPAILERON BLUE RIDGE COMET I/B PIYWHEELSWI 9REO I/16BALSAHORN IGNED AND DRAWN BY -BIND8SOLDERALLWOODBALSAUNLESSIS- I/16BALSADAVID FORTUNA SIDE SHEETING OMiTTED- ---- NYLON LG- I- 4-1/8 BALSAWINGSPAN 62ENGINE 25 40 CLAMPSW222RE P COMPUTERIZED 9/8/95 RWFR/ESTADI/PLY LG PLATE CUT 4 I/B RIBSFLAP RIBS70 2 3 4 5 BLUE RIDGE COMET NA J~ R 7 ~j j iSFO b FL 0 0115 LITFLE PLANLO5JJ01 ~ 5 2F mOAN (JCLDTlMFR sEr5TAiN CD CDOF vr01F 5001- CY-SII oorH 0 CD 1 CD CO -L 0 Co FE HAS W-F -ThElL1YGE1JP SArLm lIr rRLxLE 5EL notched hinges glued bottom basswood section spar capped /32 X 3/ plywood flaps cut A2 basswood strengthen flaps keep warping covered 75-ounce glass cloth applied thin coat epoxy inside flaps also given thin coat epoxy fiberglass resin can used instead Before epoxy sets up cover Saran Wrap weight down allow dry eading edge added flap epoxied place flap has finished fiberglass resin use resin attach leading edge may need tapered slightly rear fit wing flap servo mounted 1/8 X plywood rails glued bottom wing Standard aileron hookup hardware can used hook up flaps made horn wires 078 music wire recess cut bottom sheeting wire wire flap servo soldered ones coming off horns making Y connection Maximum flap travel should about 400 Make sure both flaps deploy same amount Outer Panels constructed like inner panels After pinning down leading edge spars trailing edge check against inner panel make sure align before gluing ribs Rib W-2 joins inner panel can left off until panels joined wingtip laminated very light t balsa outer panels complete join inner panels Lay inner panel down flat raise outer panel correct dihedral angle After everything dry add rib W-2 tip spar spar cracked rib W-3 bends down tip Add gussets indicated other inner panel can laid down procedure repeated Fuselage The fuselage basically box square material sheet balsa added around nose sides built directly over plan youre using 36-inch material splice bottom longeron rear longeron also needs cut front indicated Crack longeron areas fill epoxy pin down follow bottom curvature wont follow curvature exactly point will sanded shape later Just pin place overlaps outline slightly After framework completed lay Saran Wrap over build second frame over first Add 3/is sheet balsa between frames indicated Very light wood used except around landing gear 2 plywood doubler glued inside fuselage slow-drying cyanoacrylate CyA epoxy Weight down until its completely dry Make sure have left right side Bevel rear fuselage frames have /16 thickness joined landing-gear plate slid -inch slots fuselage sides Bevel plate front epoxy place Check make sure fuselage sides true Glue former F-2 pull tail together Epoxy F-I place clamp sides together until theyre dry Bend front landing-gear legs 1/ music wire mount place nylon landing-gear clamps Its best first bend rear gear legs soft wire such florists wire obtain correct angles rear gear legs bent 900 angles join front legs makes hard visualize correct angles two-dimensional plan view Bind legs copper wire solder together Drill maple engine mounts 6-32 bolts install blind nuts Slide engine mounts place epoxy Triangular stock epoxied behind F- 1 extending up engine mounts Temporarily add engine plate engine drill hole throttle cable Add 3A6-square top bottom crossmembers Glue 1/16 plywood under C-3 add 10-32 blind nuts Epoxy around blind nuts added security C-2 C-3 now glued place C-3 should cracked cabin angle changes model has flaps C-3 will need trimmed clear flap horns Cut tank floor /s Lite Ply Glue place add ngular stock under Sullivan four-ounce slant tank used prototype Fuelproof around tank area resin epoxy Add former C-I its slightly oversize beveled around top Plank very light balsa adding top piece first cut approximate shape glued place sanded match side contour side strips added Glue A6 sheeting forward part fuselage sides glued sheeting within -inch cabin windows added windows framing just before covering keeps windows getting messed up during construction After bottom sheeting glued place scrap balsa can added along longerons feather decide use cowling carve balsa block make approximately 2 undersize used mold fiberglass cowl using balloon method use balloon method glue dowel base block used mount cowl block vise Cover cowl block Saran Wrap add layer heavyweight fiberglass cloth Smooth out cloth hold place thumbtacks attached underside block Apply heavy coat fiberglass resin over cloth Inflate balloon thats about twice size cowl block Stretch balloon over cowl block slowly deflating go Make sure balloon big enough before start make sure have balloon After cowl has dried remove fiberglass cowl form apply layer heavyweight cloth inside cowl Afterward can trimmed sanded down Glue stabilizer fin place check alignment carefully before glue sets up Add very light /16 balsa top stabilizer around fin Mount tail wheel using Carl Goldberg similar tail-wheel bracket can removed until model finished mounted rudder elevator servos between F-3 F-4 location may vary slightly balance F-3 glued place first two side members S-l finally F-4B F-4T can added Servo rails 1/8 x 3/ plywood Pushrods made ls point everything should shaped sanded preparation covering Add cabin windows framing Framing can cut 2 plywood fuselage side sheeting can feathered-in match cabin window thickness open framework strong covering material recommended Silk Coverite similar material would good choice used classic dope finish model giving Old-Timer appearance 3A6 dowel added front windshield support followed windshield cut windshield shape taped edges down ran hair dryer across form contour Its epoxied place Fuelproof inside nose area epoxy fiberglass resin install engine radio Everything should given final check Ive used several sizes engines model 25 29 seems work best 40-sized four-stroke would ideal type model Flying first flight wait until winds calm Rudder control little sensitive other Blue Ridge Comet flies beautifully very stable Landings breeze really doesnt matter engine running youre using flaps would suggest completely trim out model first Once have some altitude try out flaps get feel Approximately 1 0200 flaps works well takeoff use extra drag will offset extra lift careful about retracting flaps low altitude low airspeed As flaps come up lift lost could cause model drop stall Flaps seem increase stability allow model fly very slowly Well pretty much covers Take time relax Blue Ridge Comet flies lazily overhead represents time things simpler rushed guess doesnt hurt go back time time Special thanks Bent Evans chief test/crash pilot Greta Aeromodelers assistance test flights Model Aviation
Edition: Model Aviation - 1995/12
Page Numbers: 104, 105, 106, 107, 108, 109, 110
NO OCR TEXT NO OCR TEXT before tben wing braces D-4 D-5 can glued bottom spar After have installed end rib W-2 added After wing panels completed joined center section Use slowdrying glue block panels correct dihedral angle let dry top spars vertical webbing now added vertical webbing cut /16 C-grain Sheet center section sheeting going between spars cutout made front sheeting As plywood hold-down support Plywood also inserted rear hold-down bolt goes Now drill holes 10-32 nylon bolts front hold-down tab screwed 1/ plywood installing flaps its best complete rear wing section now Turn wing over add rear A2 x basswood section Basswood seems warp less other woods Plywood could also used its hard find Y32 plywood thats warped section wing warped flaps may fit correctly Fill between ribs trailing edge 3As x a /s x 3As balsa spar 106 Model Aviation c wire landing-gear legs attached Vs plywood withThe nose section planked light balsa Maple engine nylon clamps Spruce sheeting covers thismounts drilled 6-32 bolts blind nuts finished airframe prior covering open framework strong covering material recommended Rudder elevator tail wheel details Mount tail wheel Carl Goldberg similar bracket December 1995 107 wingtips laminated very light /4 sheet balsa TheThe flap servo mounted x /s plywood rails Centerwing ribs cut sturdier C-grainsection sheeting added next Wing well-stressed /W2 _________ _____ W4W3_____ W2 IT __________ I-SERVc ____078 WIREH9RBALSA7\FILNsETI/I6PL --1i- III h 1/18 SH \ ini1/16 RIBS ALL GUSSETS I/BLIrEPLYI/2X3/4 LE ,I INSETD2I 1/16 _____ _____ _________ ____ ____W2 1W2PLY b ___W2W2 W2 W2W2W2W2___WI WI WI _____ _____________ jONLY MAKE FLAP FROMI1/16 XI/4SPRUCE 3/32PLY04 FLAPS ARE OPTIONAL- - /T 1 IFLAPDI3/16 T SHOWN ON LEFT WING3/16 6rY1/16 WEBBING I/16PLDSI/32BASSWOODSGLASSBOTTOD3SH ____ _______ ____M-I/8X3/81/32 BASSWOOD HINGA —_____ ____ONBOTTOM XI/4 ______ Y ___ _____ ____ -3/16 SO SPRUCE PUT- - ~- ___r ______________ ________ ___________ 5/32X 1/4 TE 3/16 FILL10-32 NYLON BOLTSBALSA SPARS OUTER PANNELS TEPLJ F4/ C28C31/8PLY CUT SLIGHTLY OVER0-32 BLIND SIZESBEVELNUTSC3 _______________ _________ 3/16DOWEL-—--------------DI 3/32PLY MOTOR PLATE I/8PLYNO2SCRE WING HOLD- OWN FIBERGLASSASTIC \c- -1/BLITEPLY3/16x3/B / I/8X3/I6 _ _PLYTANKLITEPLY I/4SHEE \FJ I/2L -_ATTERY INDICATES FLOOR _3/1650W3 _3/16SQ DRAIN TUBE-.- F23/16I/32PLY \~F4SPRUCEDIAGONALS 3/I6SHEET I_ _ ml 2REQ -___EAR LGj CRACK8 EPOXY---- LG_ TE- RECV\. \ R 1/16 BALSA SHEETING TO HER FEATHER IN1/8 MW. -- -0 -POLYHEDRAL DETAIL 1/32 PLY/I/B MUSICJl/8PLY_______________ DOUBLER STRIPAILERON BLUE RIDGE COMET I/B PIYWHEELSWI 9REO I/16BALSAHORN IGNED AND DRAWN BY -BIND8SOLDERALLWOODBALSAUNLESSIS- I/16BALSADAVID FORTUNA SIDE SHEETING OMiTTED- ---- NYLON LG- I- 4-1/8 BALSAWINGSPAN 62ENGINE 25 40 CLAMPSW222RE P COMPUTERIZED 9/8/95 RWFR/ESTADI/PLY LG PLATE CUT 4 I/B RIBSFLAP RIBS70 2 3 4 5 BLUE RIDGE COMET NA J~ R 7 ~j j iSFO b FL 0 0115 LITFLE PLANLO5JJ01 ~ 5 2F mOAN (JCLDTlMFR sEr5TAiN CD CDOF vr01F 5001- CY-SII oorH 0 CD 1 CD CO -L 0 Co FE HAS W-F -ThElL1YGE1JP SArLm lIr rRLxLE 5EL notched hinges glued bottom basswood section spar capped /32 X 3/ plywood flaps cut A2 basswood strengthen flaps keep warping covered 75-ounce glass cloth applied thin coat epoxy inside flaps also given thin coat epoxy fiberglass resin can used instead Before epoxy sets up cover Saran Wrap weight down allow dry eading edge added flap epoxied place flap has finished fiberglass resin use resin attach leading edge may need tapered slightly rear fit wing flap servo mounted 1/8 X plywood rails glued bottom wing Standard aileron hookup hardware can used hook up flaps made horn wires 078 music wire recess cut bottom sheeting wire wire flap servo soldered ones coming off horns making Y connection Maximum flap travel should about 400 Make sure both flaps deploy same amount Outer Panels constructed like inner panels After pinning down leading edge spars trailing edge check against inner panel make sure align before gluing ribs Rib W-2 joins inner panel can left off until panels joined wingtip laminated very light t balsa outer panels complete join inner panels Lay inner panel down flat raise outer panel correct dihedral angle After everything dry add rib W-2 tip spar spar cracked rib W-3 bends down tip Add gussets indicated other inner panel can laid down procedure repeated Fuselage The fuselage basically box square material sheet balsa added around nose sides built directly over plan youre using 36-inch material splice bottom longeron rear longeron also needs cut front indicated Crack longeron areas fill epoxy pin down follow bottom curvature wont follow curvature exactly point will sanded shape later Just pin place overlaps outline slightly After framework completed lay Saran Wrap over build second frame over first Add 3/is sheet balsa between frames indicated Very light wood used except around landing gear 2 plywood doubler glued inside fuselage slow-drying cyanoacrylate CyA epoxy Weight down until its completely dry Make sure have left right side Bevel rear fuselage frames have /16 thickness joined landing-gear plate slid -inch slots fuselage sides Bevel plate front epoxy place Check make sure fuselage sides true Glue former F-2 pull tail together Epoxy F-I place clamp sides together until theyre dry Bend front landing-gear legs 1/ music wire mount place nylon landing-gear clamps Its best first bend rear gear legs soft wire such florists wire obtain correct angles rear gear legs bent 900 angles join front legs makes hard visualize correct angles two-dimensional plan view Bind legs copper wire solder together Drill maple engine mounts 6-32 bolts install blind nuts Slide engine mounts place epoxy Triangular stock epoxied behind F- 1 extending up engine mounts Temporarily add engine plate engine drill hole throttle cable Add 3A6-square top bottom crossmembers Glue 1/16 plywood under C-3 add 10-32 blind nuts Epoxy around blind nuts added security C-2 C-3 now glued place C-3 should cracked cabin angle changes model has flaps C-3 will need trimmed clear flap horns Cut tank floor /s Lite Ply Glue place add ngular stock under Sullivan four-ounce slant tank used prototype Fuelproof around tank area resin epoxy Add former C-I its slightly oversize beveled around top Plank very light balsa adding top piece first cut approximate shape glued place sanded match side contour side strips added Glue A6 sheeting forward part fuselage sides glued sheeting within -inch cabin windows added windows framing just before covering keeps windows getting messed up during construction After bottom sheeting glued place scrap balsa can added along longerons feather decide use cowling carve balsa block make approximately 2 undersize used mold fiberglass cowl using balloon method use balloon method glue dowel base block used mount cowl block vise Cover cowl block Saran Wrap add layer heavyweight fiberglass cloth Smooth out cloth hold place thumbtacks attached underside block Apply heavy coat fiberglass resin over cloth Inflate balloon thats about twice size cowl block Stretch balloon over cowl block slowly deflating go Make sure balloon big enough before start make sure have balloon After cowl has dried remove fiberglass cowl form apply layer heavyweight cloth inside cowl Afterward can trimmed sanded down Glue stabilizer fin place check alignment carefully before glue sets up Add very light /16 balsa top stabilizer around fin Mount tail wheel using Carl Goldberg similar tail-wheel bracket can removed until model finished mounted rudder elevator servos between F-3 F-4 location may vary slightly balance F-3 glued place first two side members S-l finally F-4B F-4T can added Servo rails 1/8 x 3/ plywood Pushrods made ls point everything should shaped sanded preparation covering Add cabin windows framing Framing can cut 2 plywood fuselage side sheeting can feathered-in match cabin window thickness open framework strong covering material recommended Silk Coverite similar material would good choice used classic dope finish model giving Old-Timer appearance 3A6 dowel added front windshield support followed windshield cut windshield shape taped edges down ran hair dryer across form contour Its epoxied place Fuelproof inside nose area epoxy fiberglass resin install engine radio Everything should given final check Ive used several sizes engines model 25 29 seems work best 40-sized four-stroke would ideal type model Flying first flight wait until winds calm Rudder control little sensitive other Blue Ridge Comet flies beautifully very stable Landings breeze really doesnt matter engine running youre using flaps would suggest completely trim out model first Once have some altitude try out flaps get feel Approximately 1 0200 flaps works well takeoff use extra drag will offset extra lift careful about retracting flaps low altitude low airspeed As flaps come up lift lost could cause model drop stall Flaps seem increase stability allow model fly very slowly Well pretty much covers Take time relax Blue Ridge Comet flies lazily overhead represents time things simpler rushed guess doesnt hurt go back time time Special thanks Bent Evans chief test/crash pilot Greta Aeromodelers assistance test flights Model Aviation
Edition: Model Aviation - 1995/12
Page Numbers: 104, 105, 106, 107, 108, 109, 110
NO OCR TEXT NO OCR TEXT before tben wing braces D-4 D-5 can glued bottom spar After have installed end rib W-2 added After wing panels completed joined center section Use slowdrying glue block panels correct dihedral angle let dry top spars vertical webbing now added vertical webbing cut /16 C-grain Sheet center section sheeting going between spars cutout made front sheeting As plywood hold-down support Plywood also inserted rear hold-down bolt goes Now drill holes 10-32 nylon bolts front hold-down tab screwed 1/ plywood installing flaps its best complete rear wing section now Turn wing over add rear A2 x basswood section Basswood seems warp less other woods Plywood could also used its hard find Y32 plywood thats warped section wing warped flaps may fit correctly Fill between ribs trailing edge 3As x a /s x 3As balsa spar 106 Model Aviation c wire landing-gear legs attached Vs plywood withThe nose section planked light balsa Maple engine nylon clamps Spruce sheeting covers thismounts drilled 6-32 bolts blind nuts finished airframe prior covering open framework strong covering material recommended Rudder elevator tail wheel details Mount tail wheel Carl Goldberg similar bracket December 1995 107 wingtips laminated very light /4 sheet balsa TheThe flap servo mounted x /s plywood rails Centerwing ribs cut sturdier C-grainsection sheeting added next Wing well-stressed /W2 _________ _____ W4W3_____ W2 IT __________ I-SERVc ____078 WIREH9RBALSA7\FILNsETI/I6PL --1i- III h 1/18 SH \ ini1/16 RIBS ALL GUSSETS I/BLIrEPLYI/2X3/4 LE ,I INSETD2I 1/16 _____ _____ _________ ____ ____W2 1W2PLY b ___W2W2 W2 W2W2W2W2___WI WI WI _____ _____________ jONLY MAKE FLAP FROMI1/16 XI/4SPRUCE 3/32PLY04 FLAPS ARE OPTIONAL- - /T 1 IFLAPDI3/16 T SHOWN ON LEFT WING3/16 6rY1/16 WEBBING I/16PLDSI/32BASSWOODSGLASSBOTTOD3SH ____ _______ ____M-I/8X3/81/32 BASSWOOD HINGA —_____ ____ONBOTTOM XI/4 ______ Y ___ _____ ____ -3/16 SO SPRUCE PUT- - ~- ___r ______________ ________ ___________ 5/32X 1/4 TE 3/16 FILL10-32 NYLON BOLTSBALSA SPARS OUTER PANNELS TEPLJ F4/ C28C31/8PLY CUT SLIGHTLY OVER0-32 BLIND SIZESBEVELNUTSC3 _______________ _________ 3/16DOWEL-—--------------DI 3/32PLY MOTOR PLATE I/8PLYNO2SCRE WING HOLD- OWN FIBERGLASSASTIC \c- -1/BLITEPLY3/16x3/B / I/8X3/I6 _ _PLYTANKLITEPLY I/4SHEE \FJ I/2L -_ATTERY INDICATES FLOOR _3/1650W3 _3/16SQ DRAIN TUBE-.- F23/16I/32PLY \~F4SPRUCEDIAGONALS 3/I6SHEET I_ _ ml 2REQ -___EAR LGj CRACK8 EPOXY---- LG_ TE- RECV\. \ R 1/16 BALSA SHEETING TO HER FEATHER IN1/8 MW. -- -0 -POLYHEDRAL DETAIL 1/32 PLY/I/B MUSICJl/8PLY_______________ DOUBLER STRIPAILERON BLUE RIDGE COMET I/B PIYWHEELSWI 9REO I/16BALSAHORN IGNED AND DRAWN BY -BIND8SOLDERALLWOODBALSAUNLESSIS- I/16BALSADAVID FORTUNA SIDE SHEETING OMiTTED- ---- NYLON LG- I- 4-1/8 BALSAWINGSPAN 62ENGINE 25 40 CLAMPSW222RE P COMPUTERIZED 9/8/95 RWFR/ESTADI/PLY LG PLATE CUT 4 I/B RIBSFLAP RIBS70 2 3 4 5 BLUE RIDGE COMET NA J~ R 7 ~j j iSFO b FL 0 0115 LITFLE PLANLO5JJ01 ~ 5 2F mOAN (JCLDTlMFR sEr5TAiN CD CDOF vr01F 5001- CY-SII oorH 0 CD 1 CD CO -L 0 Co FE HAS W-F -ThElL1YGE1JP SArLm lIr rRLxLE 5EL notched hinges glued bottom basswood section spar capped /32 X 3/ plywood flaps cut A2 basswood strengthen flaps keep warping covered 75-ounce glass cloth applied thin coat epoxy inside flaps also given thin coat epoxy fiberglass resin can used instead Before epoxy sets up cover Saran Wrap weight down allow dry eading edge added flap epoxied place flap has finished fiberglass resin use resin attach leading edge may need tapered slightly rear fit wing flap servo mounted 1/8 X plywood rails glued bottom wing Standard aileron hookup hardware can used hook up flaps made horn wires 078 music wire recess cut bottom sheeting wire wire flap servo soldered ones coming off horns making Y connection Maximum flap travel should about 400 Make sure both flaps deploy same amount Outer Panels constructed like inner panels After pinning down leading edge spars trailing edge check against inner panel make sure align before gluing ribs Rib W-2 joins inner panel can left off until panels joined wingtip laminated very light t balsa outer panels complete join inner panels Lay inner panel down flat raise outer panel correct dihedral angle After everything dry add rib W-2 tip spar spar cracked rib W-3 bends down tip Add gussets indicated other inner panel can laid down procedure repeated Fuselage The fuselage basically box square material sheet balsa added around nose sides built directly over plan youre using 36-inch material splice bottom longeron rear longeron also needs cut front indicated Crack longeron areas fill epoxy pin down follow bottom curvature wont follow curvature exactly point will sanded shape later Just pin place overlaps outline slightly After framework completed lay Saran Wrap over build second frame over first Add 3/is sheet balsa between frames indicated Very light wood used except around landing gear 2 plywood doubler glued inside fuselage slow-drying cyanoacrylate CyA epoxy Weight down until its completely dry Make sure have left right side Bevel rear fuselage frames have /16 thickness joined landing-gear plate slid -inch slots fuselage sides Bevel plate front epoxy place Check make sure fuselage sides true Glue former F-2 pull tail together Epoxy F-I place clamp sides together until theyre dry Bend front landing-gear legs 1/ music wire mount place nylon landing-gear clamps Its best first bend rear gear legs soft wire such florists wire obtain correct angles rear gear legs bent 900 angles join front legs makes hard visualize correct angles two-dimensional plan view Bind legs copper wire solder together Drill maple engine mounts 6-32 bolts install blind nuts Slide engine mounts place epoxy Triangular stock epoxied behind F- 1 extending up engine mounts Temporarily add engine plate engine drill hole throttle cable Add 3A6-square top bottom crossmembers Glue 1/16 plywood under C-3 add 10-32 blind nuts Epoxy around blind nuts added security C-2 C-3 now glued place C-3 should cracked cabin angle changes model has flaps C-3 will need trimmed clear flap horns Cut tank floor /s Lite Ply Glue place add ngular stock under Sullivan four-ounce slant tank used prototype Fuelproof around tank area resin epoxy Add former C-I its slightly oversize beveled around top Plank very light balsa adding top piece first cut approximate shape glued place sanded match side contour side strips added Glue A6 sheeting forward part fuselage sides glued sheeting within -inch cabin windows added windows framing just before covering keeps windows getting messed up during construction After bottom sheeting glued place scrap balsa can added along longerons feather decide use cowling carve balsa block make approximately 2 undersize used mold fiberglass cowl using balloon method use balloon method glue dowel base block used mount cowl block vise Cover cowl block Saran Wrap add layer heavyweight fiberglass cloth Smooth out cloth hold place thumbtacks attached underside block Apply heavy coat fiberglass resin over cloth Inflate balloon thats about twice size cowl block Stretch balloon over cowl block slowly deflating go Make sure balloon big enough before start make sure have balloon After cowl has dried remove fiberglass cowl form apply layer heavyweight cloth inside cowl Afterward can trimmed sanded down Glue stabilizer fin place check alignment carefully before glue sets up Add very light /16 balsa top stabilizer around fin Mount tail wheel using Carl Goldberg similar tail-wheel bracket can removed until model finished mounted rudder elevator servos between F-3 F-4 location may vary slightly balance F-3 glued place first two side members S-l finally F-4B F-4T can added Servo rails 1/8 x 3/ plywood Pushrods made ls point everything should shaped sanded preparation covering Add cabin windows framing Framing can cut 2 plywood fuselage side sheeting can feathered-in match cabin window thickness open framework strong covering material recommended Silk Coverite similar material would good choice used classic dope finish model giving Old-Timer appearance 3A6 dowel added front windshield support followed windshield cut windshield shape taped edges down ran hair dryer across form contour Its epoxied place Fuelproof inside nose area epoxy fiberglass resin install engine radio Everything should given final check Ive used several sizes engines model 25 29 seems work best 40-sized four-stroke would ideal type model Flying first flight wait until winds calm Rudder control little sensitive other Blue Ridge Comet flies beautifully very stable Landings breeze really doesnt matter engine running youre using flaps would suggest completely trim out model first Once have some altitude try out flaps get feel Approximately 1 0200 flaps works well takeoff use extra drag will offset extra lift careful about retracting flaps low altitude low airspeed As flaps come up lift lost could cause model drop stall Flaps seem increase stability allow model fly very slowly Well pretty much covers Take time relax Blue Ridge Comet flies lazily overhead represents time things simpler rushed guess doesnt hurt go back time time Special thanks Bent Evans chief test/crash pilot Greta Aeromodelers assistance test flights Model Aviation
Edition: Model Aviation - 1995/12
Page Numbers: 104, 105, 106, 107, 108, 109, 110
NO OCR TEXT NO OCR TEXT before tben wing braces D-4 D-5 can glued bottom spar After have installed end rib W-2 added After wing panels completed joined center section Use slowdrying glue block panels correct dihedral angle let dry top spars vertical webbing now added vertical webbing cut /16 C-grain Sheet center section sheeting going between spars cutout made front sheeting As plywood hold-down support Plywood also inserted rear hold-down bolt goes Now drill holes 10-32 nylon bolts front hold-down tab screwed 1/ plywood installing flaps its best complete rear wing section now Turn wing over add rear A2 x basswood section Basswood seems warp less other woods Plywood could also used its hard find Y32 plywood thats warped section wing warped flaps may fit correctly Fill between ribs trailing edge 3As x a /s x 3As balsa spar 106 Model Aviation c wire landing-gear legs attached Vs plywood withThe nose section planked light balsa Maple engine nylon clamps Spruce sheeting covers thismounts drilled 6-32 bolts blind nuts finished airframe prior covering open framework strong covering material recommended Rudder elevator tail wheel details Mount tail wheel Carl Goldberg similar bracket December 1995 107 wingtips laminated very light /4 sheet balsa TheThe flap servo mounted x /s plywood rails Centerwing ribs cut sturdier C-grainsection sheeting added next Wing well-stressed /W2 _________ _____ W4W3_____ W2 IT __________ I-SERVc ____078 WIREH9RBALSA7\FILNsETI/I6PL --1i- III h 1/18 SH \ ini1/16 RIBS ALL GUSSETS I/BLIrEPLYI/2X3/4 LE ,I INSETD2I 1/16 _____ _____ _________ ____ ____W2 1W2PLY b ___W2W2 W2 W2W2W2W2___WI WI WI _____ _____________ jONLY MAKE FLAP FROMI1/16 XI/4SPRUCE 3/32PLY04 FLAPS ARE OPTIONAL- - /T 1 IFLAPDI3/16 T SHOWN ON LEFT WING3/16 6rY1/16 WEBBING I/16PLDSI/32BASSWOODSGLASSBOTTOD3SH ____ _______ ____M-I/8X3/81/32 BASSWOOD HINGA —_____ ____ONBOTTOM XI/4 ______ Y ___ _____ ____ -3/16 SO SPRUCE PUT- - ~- ___r ______________ ________ ___________ 5/32X 1/4 TE 3/16 FILL10-32 NYLON BOLTSBALSA SPARS OUTER PANNELS TEPLJ F4/ C28C31/8PLY CUT SLIGHTLY OVER0-32 BLIND SIZESBEVELNUTSC3 _______________ _________ 3/16DOWEL-—--------------DI 3/32PLY MOTOR PLATE I/8PLYNO2SCRE WING HOLD- OWN FIBERGLASSASTIC \c- -1/BLITEPLY3/16x3/B / I/8X3/I6 _ _PLYTANKLITEPLY I/4SHEE \FJ I/2L -_ATTERY INDICATES FLOOR _3/1650W3 _3/16SQ DRAIN TUBE-.- F23/16I/32PLY \~F4SPRUCEDIAGONALS 3/I6SHEET I_ _ ml 2REQ -___EAR LGj CRACK8 EPOXY---- LG_ TE- RECV\. \ R 1/16 BALSA SHEETING TO HER FEATHER IN1/8 MW. -- -0 -POLYHEDRAL DETAIL 1/32 PLY/I/B MUSICJl/8PLY_______________ DOUBLER STRIPAILERON BLUE RIDGE COMET I/B PIYWHEELSWI 9REO I/16BALSAHORN IGNED AND DRAWN BY -BIND8SOLDERALLWOODBALSAUNLESSIS- I/16BALSADAVID FORTUNA SIDE SHEETING OMiTTED- ---- NYLON LG- I- 4-1/8 BALSAWINGSPAN 62ENGINE 25 40 CLAMPSW222RE P COMPUTERIZED 9/8/95 RWFR/ESTADI/PLY LG PLATE CUT 4 I/B RIBSFLAP RIBS70 2 3 4 5 BLUE RIDGE COMET NA J~ R 7 ~j j iSFO b FL 0 0115 LITFLE PLANLO5JJ01 ~ 5 2F mOAN (JCLDTlMFR sEr5TAiN CD CDOF vr01F 5001- CY-SII oorH 0 CD 1 CD CO -L 0 Co FE HAS W-F -ThElL1YGE1JP SArLm lIr rRLxLE 5EL notched hinges glued bottom basswood section spar capped /32 X 3/ plywood flaps cut A2 basswood strengthen flaps keep warping covered 75-ounce glass cloth applied thin coat epoxy inside flaps also given thin coat epoxy fiberglass resin can used instead Before epoxy sets up cover Saran Wrap weight down allow dry eading edge added flap epoxied place flap has finished fiberglass resin use resin attach leading edge may need tapered slightly rear fit wing flap servo mounted 1/8 X plywood rails glued bottom wing Standard aileron hookup hardware can used hook up flaps made horn wires 078 music wire recess cut bottom sheeting wire wire flap servo soldered ones coming off horns making Y connection Maximum flap travel should about 400 Make sure both flaps deploy same amount Outer Panels constructed like inner panels After pinning down leading edge spars trailing edge check against inner panel make sure align before gluing ribs Rib W-2 joins inner panel can left off until panels joined wingtip laminated very light t balsa outer panels complete join inner panels Lay inner panel down flat raise outer panel correct dihedral angle After everything dry add rib W-2 tip spar spar cracked rib W-3 bends down tip Add gussets indicated other inner panel can laid down procedure repeated Fuselage The fuselage basically box square material sheet balsa added around nose sides built directly over plan youre using 36-inch material splice bottom longeron rear longeron also needs cut front indicated Crack longeron areas fill epoxy pin down follow bottom curvature wont follow curvature exactly point will sanded shape later Just pin place overlaps outline slightly After framework completed lay Saran Wrap over build second frame over first Add 3/is sheet balsa between frames indicated Very light wood used except around landing gear 2 plywood doubler glued inside fuselage slow-drying cyanoacrylate CyA epoxy Weight down until its completely dry Make sure have left right side Bevel rear fuselage frames have /16 thickness joined landing-gear plate slid -inch slots fuselage sides Bevel plate front epoxy place Check make sure fuselage sides true Glue former F-2 pull tail together Epoxy F-I place clamp sides together until theyre dry Bend front landing-gear legs 1/ music wire mount place nylon landing-gear clamps Its best first bend rear gear legs soft wire such florists wire obtain correct angles rear gear legs bent 900 angles join front legs makes hard visualize correct angles two-dimensional plan view Bind legs copper wire solder together Drill maple engine mounts 6-32 bolts install blind nuts Slide engine mounts place epoxy Triangular stock epoxied behind F- 1 extending up engine mounts Temporarily add engine plate engine drill hole throttle cable Add 3A6-square top bottom crossmembers Glue 1/16 plywood under C-3 add 10-32 blind nuts Epoxy around blind nuts added security C-2 C-3 now glued place C-3 should cracked cabin angle changes model has flaps C-3 will need trimmed clear flap horns Cut tank floor /s Lite Ply Glue place add ngular stock under Sullivan four-ounce slant tank used prototype Fuelproof around tank area resin epoxy Add former C-I its slightly oversize beveled around top Plank very light balsa adding top piece first cut approximate shape glued place sanded match side contour side strips added Glue A6 sheeting forward part fuselage sides glued sheeting within -inch cabin windows added windows framing just before covering keeps windows getting messed up during construction After bottom sheeting glued place scrap balsa can added along longerons feather decide use cowling carve balsa block make approximately 2 undersize used mold fiberglass cowl using balloon method use balloon method glue dowel base block used mount cowl block vise Cover cowl block Saran Wrap add layer heavyweight fiberglass cloth Smooth out cloth hold place thumbtacks attached underside block Apply heavy coat fiberglass resin over cloth Inflate balloon thats about twice size cowl block Stretch balloon over cowl block slowly deflating go Make sure balloon big enough before start make sure have balloon After cowl has dried remove fiberglass cowl form apply layer heavyweight cloth inside cowl Afterward can trimmed sanded down Glue stabilizer fin place check alignment carefully before glue sets up Add very light /16 balsa top stabilizer around fin Mount tail wheel using Carl Goldberg similar tail-wheel bracket can removed until model finished mounted rudder elevator servos between F-3 F-4 location may vary slightly balance F-3 glued place first two side members S-l finally F-4B F-4T can added Servo rails 1/8 x 3/ plywood Pushrods made ls point everything should shaped sanded preparation covering Add cabin windows framing Framing can cut 2 plywood fuselage side sheeting can feathered-in match cabin window thickness open framework strong covering material recommended Silk Coverite similar material would good choice used classic dope finish model giving Old-Timer appearance 3A6 dowel added front windshield support followed windshield cut windshield shape taped edges down ran hair dryer across form contour Its epoxied place Fuelproof inside nose area epoxy fiberglass resin install engine radio Everything should given final check Ive used several sizes engines model 25 29 seems work best 40-sized four-stroke would ideal type model Flying first flight wait until winds calm Rudder control little sensitive other Blue Ridge Comet flies beautifully very stable Landings breeze really doesnt matter engine running youre using flaps would suggest completely trim out model first Once have some altitude try out flaps get feel Approximately 1 0200 flaps works well takeoff use extra drag will offset extra lift careful about retracting flaps low altitude low airspeed As flaps come up lift lost could cause model drop stall Flaps seem increase stability allow model fly very slowly Well pretty much covers Take time relax Blue Ridge Comet flies lazily overhead represents time things simpler rushed guess doesnt hurt go back time time Special thanks Bent Evans chief test/crash pilot Greta Aeromodelers assistance test flights Model Aviation
Edition: Model Aviation - 1995/12
Page Numbers: 104, 105, 106, 107, 108, 109, 110
NO OCR TEXT NO OCR TEXT before tben wing braces D-4 D-5 can glued bottom spar After have installed end rib W-2 added After wing panels completed joined center section Use slowdrying glue block panels correct dihedral angle let dry top spars vertical webbing now added vertical webbing cut /16 C-grain Sheet center section sheeting going between spars cutout made front sheeting As plywood hold-down support Plywood also inserted rear hold-down bolt goes Now drill holes 10-32 nylon bolts front hold-down tab screwed 1/ plywood installing flaps its best complete rear wing section now Turn wing over add rear A2 x basswood section Basswood seems warp less other woods Plywood could also used its hard find Y32 plywood thats warped section wing warped flaps may fit correctly Fill between ribs trailing edge 3As x a /s x 3As balsa spar 106 Model Aviation c wire landing-gear legs attached Vs plywood withThe nose section planked light balsa Maple engine nylon clamps Spruce sheeting covers thismounts drilled 6-32 bolts blind nuts finished airframe prior covering open framework strong covering material recommended Rudder elevator tail wheel details Mount tail wheel Carl Goldberg similar bracket December 1995 107 wingtips laminated very light /4 sheet balsa TheThe flap servo mounted x /s plywood rails Centerwing ribs cut sturdier C-grainsection sheeting added next Wing well-stressed /W2 _________ _____ W4W3_____ W2 IT __________ I-SERVc ____078 WIREH9RBALSA7\FILNsETI/I6PL --1i- III h 1/18 SH \ ini1/16 RIBS ALL GUSSETS I/BLIrEPLYI/2X3/4 LE ,I INSETD2I 1/16 _____ _____ _________ ____ ____W2 1W2PLY b ___W2W2 W2 W2W2W2W2___WI WI WI _____ _____________ jONLY MAKE FLAP FROMI1/16 XI/4SPRUCE 3/32PLY04 FLAPS ARE OPTIONAL- - /T 1 IFLAPDI3/16 T SHOWN ON LEFT WING3/16 6rY1/16 WEBBING I/16PLDSI/32BASSWOODSGLASSBOTTOD3SH ____ _______ ____M-I/8X3/81/32 BASSWOOD HINGA —_____ ____ONBOTTOM XI/4 ______ Y ___ _____ ____ -3/16 SO SPRUCE PUT- - ~- ___r ______________ ________ ___________ 5/32X 1/4 TE 3/16 FILL10-32 NYLON BOLTSBALSA SPARS OUTER PANNELS TEPLJ F4/ C28C31/8PLY CUT SLIGHTLY OVER0-32 BLIND SIZESBEVELNUTSC3 _______________ _________ 3/16DOWEL-—--------------DI 3/32PLY MOTOR PLATE I/8PLYNO2SCRE WING HOLD- OWN FIBERGLASSASTIC \c- -1/BLITEPLY3/16x3/B / I/8X3/I6 _ _PLYTANKLITEPLY I/4SHEE \FJ I/2L -_ATTERY INDICATES FLOOR _3/1650W3 _3/16SQ DRAIN TUBE-.- F23/16I/32PLY \~F4SPRUCEDIAGONALS 3/I6SHEET I_ _ ml 2REQ -___EAR LGj CRACK8 EPOXY---- LG_ TE- RECV\. \ R 1/16 BALSA SHEETING TO HER FEATHER IN1/8 MW. -- -0 -POLYHEDRAL DETAIL 1/32 PLY/I/B MUSICJl/8PLY_______________ DOUBLER STRIPAILERON BLUE RIDGE COMET I/B PIYWHEELSWI 9REO I/16BALSAHORN IGNED AND DRAWN BY -BIND8SOLDERALLWOODBALSAUNLESSIS- I/16BALSADAVID FORTUNA SIDE SHEETING OMiTTED- ---- NYLON LG- I- 4-1/8 BALSAWINGSPAN 62ENGINE 25 40 CLAMPSW222RE P COMPUTERIZED 9/8/95 RWFR/ESTADI/PLY LG PLATE CUT 4 I/B RIBSFLAP RIBS70 2 3 4 5 BLUE RIDGE COMET NA J~ R 7 ~j j iSFO b FL 0 0115 LITFLE PLANLO5JJ01 ~ 5 2F mOAN (JCLDTlMFR sEr5TAiN CD CDOF vr01F 5001- CY-SII oorH 0 CD 1 CD CO -L 0 Co FE HAS W-F -ThElL1YGE1JP SArLm lIr rRLxLE 5EL notched hinges glued bottom basswood section spar capped /32 X 3/ plywood flaps cut A2 basswood strengthen flaps keep warping covered 75-ounce glass cloth applied thin coat epoxy inside flaps also given thin coat epoxy fiberglass resin can used instead Before epoxy sets up cover Saran Wrap weight down allow dry eading edge added flap epoxied place flap has finished fiberglass resin use resin attach leading edge may need tapered slightly rear fit wing flap servo mounted 1/8 X plywood rails glued bottom wing Standard aileron hookup hardware can used hook up flaps made horn wires 078 music wire recess cut bottom sheeting wire wire flap servo soldered ones coming off horns making Y connection Maximum flap travel should about 400 Make sure both flaps deploy same amount Outer Panels constructed like inner panels After pinning down leading edge spars trailing edge check against inner panel make sure align before gluing ribs Rib W-2 joins inner panel can left off until panels joined wingtip laminated very light t balsa outer panels complete join inner panels Lay inner panel down flat raise outer panel correct dihedral angle After everything dry add rib W-2 tip spar spar cracked rib W-3 bends down tip Add gussets indicated other inner panel can laid down procedure repeated Fuselage The fuselage basically box square material sheet balsa added around nose sides built directly over plan youre using 36-inch material splice bottom longeron rear longeron also needs cut front indicated Crack longeron areas fill epoxy pin down follow bottom curvature wont follow curvature exactly point will sanded shape later Just pin place overlaps outline slightly After framework completed lay Saran Wrap over build second frame over first Add 3/is sheet balsa between frames indicated Very light wood used except around landing gear 2 plywood doubler glued inside fuselage slow-drying cyanoacrylate CyA epoxy Weight down until its completely dry Make sure have left right side Bevel rear fuselage frames have /16 thickness joined landing-gear plate slid -inch slots fuselage sides Bevel plate front epoxy place Check make sure fuselage sides true Glue former F-2 pull tail together Epoxy F-I place clamp sides together until theyre dry Bend front landing-gear legs 1/ music wire mount place nylon landing-gear clamps Its best first bend rear gear legs soft wire such florists wire obtain correct angles rear gear legs bent 900 angles join front legs makes hard visualize correct angles two-dimensional plan view Bind legs copper wire solder together Drill maple engine mounts 6-32 bolts install blind nuts Slide engine mounts place epoxy Triangular stock epoxied behind F- 1 extending up engine mounts Temporarily add engine plate engine drill hole throttle cable Add 3A6-square top bottom crossmembers Glue 1/16 plywood under C-3 add 10-32 blind nuts Epoxy around blind nuts added security C-2 C-3 now glued place C-3 should cracked cabin angle changes model has flaps C-3 will need trimmed clear flap horns Cut tank floor /s Lite Ply Glue place add ngular stock under Sullivan four-ounce slant tank used prototype Fuelproof around tank area resin epoxy Add former C-I its slightly oversize beveled around top Plank very light balsa adding top piece first cut approximate shape glued place sanded match side contour side strips added Glue A6 sheeting forward part fuselage sides glued sheeting within -inch cabin windows added windows framing just before covering keeps windows getting messed up during construction After bottom sheeting glued place scrap balsa can added along longerons feather decide use cowling carve balsa block make approximately 2 undersize used mold fiberglass cowl using balloon method use balloon method glue dowel base block used mount cowl block vise Cover cowl block Saran Wrap add layer heavyweight fiberglass cloth Smooth out cloth hold place thumbtacks attached underside block Apply heavy coat fiberglass resin over cloth Inflate balloon thats about twice size cowl block Stretch balloon over cowl block slowly deflating go Make sure balloon big enough before start make sure have balloon After cowl has dried remove fiberglass cowl form apply layer heavyweight cloth inside cowl Afterward can trimmed sanded down Glue stabilizer fin place check alignment carefully before glue sets up Add very light /16 balsa top stabilizer around fin Mount tail wheel using Carl Goldberg similar tail-wheel bracket can removed until model finished mounted rudder elevator servos between F-3 F-4 location may vary slightly balance F-3 glued place first two side members S-l finally F-4B F-4T can added Servo rails 1/8 x 3/ plywood Pushrods made ls point everything should shaped sanded preparation covering Add cabin windows framing Framing can cut 2 plywood fuselage side sheeting can feathered-in match cabin window thickness open framework strong covering material recommended Silk Coverite similar material would good choice used classic dope finish model giving Old-Timer appearance 3A6 dowel added front windshield support followed windshield cut windshield shape taped edges down ran hair dryer across form contour Its epoxied place Fuelproof inside nose area epoxy fiberglass resin install engine radio Everything should given final check Ive used several sizes engines model 25 29 seems work best 40-sized four-stroke would ideal type model Flying first flight wait until winds calm Rudder control little sensitive other Blue Ridge Comet flies beautifully very stable Landings breeze really doesnt matter engine running youre using flaps would suggest completely trim out model first Once have some altitude try out flaps get feel Approximately 1 0200 flaps works well takeoff use extra drag will offset extra lift careful about retracting flaps low altitude low airspeed As flaps come up lift lost could cause model drop stall Flaps seem increase stability allow model fly very slowly Well pretty much covers Take time relax Blue Ridge Comet flies lazily overhead represents time things simpler rushed guess doesnt hurt go back time time Special thanks Bent Evans chief test/crash pilot Greta Aeromodelers assistance test flights Model Aviation
Edition: Model Aviation - 1995/12
Page Numbers: 104, 105, 106, 107, 108, 109, 110
NO OCR TEXT NO OCR TEXT before tben wing braces D-4 D-5 can glued bottom spar After have installed end rib W-2 added After wing panels completed joined center section Use slowdrying glue block panels correct dihedral angle let dry top spars vertical webbing now added vertical webbing cut /16 C-grain Sheet center section sheeting going between spars cutout made front sheeting As plywood hold-down support Plywood also inserted rear hold-down bolt goes Now drill holes 10-32 nylon bolts front hold-down tab screwed 1/ plywood installing flaps its best complete rear wing section now Turn wing over add rear A2 x basswood section Basswood seems warp less other woods Plywood could also used its hard find Y32 plywood thats warped section wing warped flaps may fit correctly Fill between ribs trailing edge 3As x a /s x 3As balsa spar 106 Model Aviation c wire landing-gear legs attached Vs plywood withThe nose section planked light balsa Maple engine nylon clamps Spruce sheeting covers thismounts drilled 6-32 bolts blind nuts finished airframe prior covering open framework strong covering material recommended Rudder elevator tail wheel details Mount tail wheel Carl Goldberg similar bracket December 1995 107 wingtips laminated very light /4 sheet balsa TheThe flap servo mounted x /s plywood rails Centerwing ribs cut sturdier C-grainsection sheeting added next Wing well-stressed /W2 _________ _____ W4W3_____ W2 IT __________ I-SERVc ____078 WIREH9RBALSA7\FILNsETI/I6PL --1i- III h 1/18 SH \ ini1/16 RIBS ALL GUSSETS I/BLIrEPLYI/2X3/4 LE ,I INSETD2I 1/16 _____ _____ _________ ____ ____W2 1W2PLY b ___W2W2 W2 W2W2W2W2___WI WI WI _____ _____________ jONLY MAKE FLAP FROMI1/16 XI/4SPRUCE 3/32PLY04 FLAPS ARE OPTIONAL- - /T 1 IFLAPDI3/16 T SHOWN ON LEFT WING3/16 6rY1/16 WEBBING I/16PLDSI/32BASSWOODSGLASSBOTTOD3SH ____ _______ ____M-I/8X3/81/32 BASSWOOD HINGA —_____ ____ONBOTTOM XI/4 ______ Y ___ _____ ____ -3/16 SO SPRUCE PUT- - ~- ___r ______________ ________ ___________ 5/32X 1/4 TE 3/16 FILL10-32 NYLON BOLTSBALSA SPARS OUTER PANNELS TEPLJ F4/ C28C31/8PLY CUT SLIGHTLY OVER0-32 BLIND SIZESBEVELNUTSC3 _______________ _________ 3/16DOWEL-—--------------DI 3/32PLY MOTOR PLATE I/8PLYNO2SCRE WING HOLD- OWN FIBERGLASSASTIC \c- -1/BLITEPLY3/16x3/B / I/8X3/I6 _ _PLYTANKLITEPLY I/4SHEE \FJ I/2L -_ATTERY INDICATES FLOOR _3/1650W3 _3/16SQ DRAIN TUBE-.- F23/16I/32PLY \~F4SPRUCEDIAGONALS 3/I6SHEET I_ _ ml 2REQ -___EAR LGj CRACK8 EPOXY---- LG_ TE- RECV\. \ R 1/16 BALSA SHEETING TO HER FEATHER IN1/8 MW. -- -0 -POLYHEDRAL DETAIL 1/32 PLY/I/B MUSICJl/8PLY_______________ DOUBLER STRIPAILERON BLUE RIDGE COMET I/B PIYWHEELSWI 9REO I/16BALSAHORN IGNED AND DRAWN BY -BIND8SOLDERALLWOODBALSAUNLESSIS- I/16BALSADAVID FORTUNA SIDE SHEETING OMiTTED- ---- NYLON LG- I- 4-1/8 BALSAWINGSPAN 62ENGINE 25 40 CLAMPSW222RE P COMPUTERIZED 9/8/95 RWFR/ESTADI/PLY LG PLATE CUT 4 I/B RIBSFLAP RIBS70 2 3 4 5 BLUE RIDGE COMET NA J~ R 7 ~j j iSFO b FL 0 0115 LITFLE PLANLO5JJ01 ~ 5 2F mOAN (JCLDTlMFR sEr5TAiN CD CDOF vr01F 5001- CY-SII oorH 0 CD 1 CD CO -L 0 Co FE HAS W-F -ThElL1YGE1JP SArLm lIr rRLxLE 5EL notched hinges glued bottom basswood section spar capped /32 X 3/ plywood flaps cut A2 basswood strengthen flaps keep warping covered 75-ounce glass cloth applied thin coat epoxy inside flaps also given thin coat epoxy fiberglass resin can used instead Before epoxy sets up cover Saran Wrap weight down allow dry eading edge added flap epoxied place flap has finished fiberglass resin use resin attach leading edge may need tapered slightly rear fit wing flap servo mounted 1/8 X plywood rails glued bottom wing Standard aileron hookup hardware can used hook up flaps made horn wires 078 music wire recess cut bottom sheeting wire wire flap servo soldered ones coming off horns making Y connection Maximum flap travel should about 400 Make sure both flaps deploy same amount Outer Panels constructed like inner panels After pinning down leading edge spars trailing edge check against inner panel make sure align before gluing ribs Rib W-2 joins inner panel can left off until panels joined wingtip laminated very light t balsa outer panels complete join inner panels Lay inner panel down flat raise outer panel correct dihedral angle After everything dry add rib W-2 tip spar spar cracked rib W-3 bends down tip Add gussets indicated other inner panel can laid down procedure repeated Fuselage The fuselage basically box square material sheet balsa added around nose sides built directly over plan youre using 36-inch material splice bottom longeron rear longeron also needs cut front indicated Crack longeron areas fill epoxy pin down follow bottom curvature wont follow curvature exactly point will sanded shape later Just pin place overlaps outline slightly After framework completed lay Saran Wrap over build second frame over first Add 3/is sheet balsa between frames indicated Very light wood used except around landing gear 2 plywood doubler glued inside fuselage slow-drying cyanoacrylate CyA epoxy Weight down until its completely dry Make sure have left right side Bevel rear fuselage frames have /16 thickness joined landing-gear plate slid -inch slots fuselage sides Bevel plate front epoxy place Check make sure fuselage sides true Glue former F-2 pull tail together Epoxy F-I place clamp sides together until theyre dry Bend front landing-gear legs 1/ music wire mount place nylon landing-gear clamps Its best first bend rear gear legs soft wire such florists wire obtain correct angles rear gear legs bent 900 angles join front legs makes hard visualize correct angles two-dimensional plan view Bind legs copper wire solder together Drill maple engine mounts 6-32 bolts install blind nuts Slide engine mounts place epoxy Triangular stock epoxied behind F- 1 extending up engine mounts Temporarily add engine plate engine drill hole throttle cable Add 3A6-square top bottom crossmembers Glue 1/16 plywood under C-3 add 10-32 blind nuts Epoxy around blind nuts added security C-2 C-3 now glued place C-3 should cracked cabin angle changes model has flaps C-3 will need trimmed clear flap horns Cut tank floor /s Lite Ply Glue place add ngular stock under Sullivan four-ounce slant tank used prototype Fuelproof around tank area resin epoxy Add former C-I its slightly oversize beveled around top Plank very light balsa adding top piece first cut approximate shape glued place sanded match side contour side strips added Glue A6 sheeting forward part fuselage sides glued sheeting within -inch cabin windows added windows framing just before covering keeps windows getting messed up during construction After bottom sheeting glued place scrap balsa can added along longerons feather decide use cowling carve balsa block make approximately 2 undersize used mold fiberglass cowl using balloon method use balloon method glue dowel base block used mount cowl block vise Cover cowl block Saran Wrap add layer heavyweight fiberglass cloth Smooth out cloth hold place thumbtacks attached underside block Apply heavy coat fiberglass resin over cloth Inflate balloon thats about twice size cowl block Stretch balloon over cowl block slowly deflating go Make sure balloon big enough before start make sure have balloon After cowl has dried remove fiberglass cowl form apply layer heavyweight cloth inside cowl Afterward can trimmed sanded down Glue stabilizer fin place check alignment carefully before glue sets up Add very light /16 balsa top stabilizer around fin Mount tail wheel using Carl Goldberg similar tail-wheel bracket can removed until model finished mounted rudder elevator servos between F-3 F-4 location may vary slightly balance F-3 glued place first two side members S-l finally F-4B F-4T can added Servo rails 1/8 x 3/ plywood Pushrods made ls point everything should shaped sanded preparation covering Add cabin windows framing Framing can cut 2 plywood fuselage side sheeting can feathered-in match cabin window thickness open framework strong covering material recommended Silk Coverite similar material would good choice used classic dope finish model giving Old-Timer appearance 3A6 dowel added front windshield support followed windshield cut windshield shape taped edges down ran hair dryer across form contour Its epoxied place Fuelproof inside nose area epoxy fiberglass resin install engine radio Everything should given final check Ive used several sizes engines model 25 29 seems work best 40-sized four-stroke would ideal type model Flying first flight wait until winds calm Rudder control little sensitive other Blue Ridge Comet flies beautifully very stable Landings breeze really doesnt matter engine running youre using flaps would suggest completely trim out model first Once have some altitude try out flaps get feel Approximately 1 0200 flaps works well takeoff use extra drag will offset extra lift careful about retracting flaps low altitude low airspeed As flaps come up lift lost could cause model drop stall Flaps seem increase stability allow model fly very slowly Well pretty much covers Take time relax Blue Ridge Comet flies lazily overhead represents time things simpler rushed guess doesnt hurt go back time time Special thanks Bent Evans chief test/crash pilot Greta Aeromodelers assistance test flights Model Aviation
Edition: Model Aviation - 1995/12
Page Numbers: 104, 105, 106, 107, 108, 109, 110
NO OCR TEXT NO OCR TEXT before tben wing braces D-4 D-5 can glued bottom spar After have installed end rib W-2 added After wing panels completed joined center section Use slowdrying glue block panels correct dihedral angle let dry top spars vertical webbing now added vertical webbing cut /16 C-grain Sheet center section sheeting going between spars cutout made front sheeting As plywood hold-down support Plywood also inserted rear hold-down bolt goes Now drill holes 10-32 nylon bolts front hold-down tab screwed 1/ plywood installing flaps its best complete rear wing section now Turn wing over add rear A2 x basswood section Basswood seems warp less other woods Plywood could also used its hard find Y32 plywood thats warped section wing warped flaps may fit correctly Fill between ribs trailing edge 3As x a /s x 3As balsa spar 106 Model Aviation c wire landing-gear legs attached Vs plywood withThe nose section planked light balsa Maple engine nylon clamps Spruce sheeting covers thismounts drilled 6-32 bolts blind nuts finished airframe prior covering open framework strong covering material recommended Rudder elevator tail wheel details Mount tail wheel Carl Goldberg similar bracket December 1995 107 wingtips laminated very light /4 sheet balsa TheThe flap servo mounted x /s plywood rails Centerwing ribs cut sturdier C-grainsection sheeting added next Wing well-stressed /W2 _________ _____ W4W3_____ W2 IT __________ I-SERVc ____078 WIREH9RBALSA7\FILNsETI/I6PL --1i- III h 1/18 SH \ ini1/16 RIBS ALL GUSSETS I/BLIrEPLYI/2X3/4 LE ,I INSETD2I 1/16 _____ _____ _________ ____ ____W2 1W2PLY b ___W2W2 W2 W2W2W2W2___WI WI WI _____ _____________ jONLY MAKE FLAP FROMI1/16 XI/4SPRUCE 3/32PLY04 FLAPS ARE OPTIONAL- - /T 1 IFLAPDI3/16 T SHOWN ON LEFT WING3/16 6rY1/16 WEBBING I/16PLDSI/32BASSWOODSGLASSBOTTOD3SH ____ _______ ____M-I/8X3/81/32 BASSWOOD HINGA —_____ ____ONBOTTOM XI/4 ______ Y ___ _____ ____ -3/16 SO SPRUCE PUT- - ~- ___r ______________ ________ ___________ 5/32X 1/4 TE 3/16 FILL10-32 NYLON BOLTSBALSA SPARS OUTER PANNELS TEPLJ F4/ C28C31/8PLY CUT SLIGHTLY OVER0-32 BLIND SIZESBEVELNUTSC3 _______________ _________ 3/16DOWEL-—--------------DI 3/32PLY MOTOR PLATE I/8PLYNO2SCRE WING HOLD- OWN FIBERGLASSASTIC \c- -1/BLITEPLY3/16x3/B / I/8X3/I6 _ _PLYTANKLITEPLY I/4SHEE \FJ I/2L -_ATTERY INDICATES FLOOR _3/1650W3 _3/16SQ DRAIN TUBE-.- F23/16I/32PLY \~F4SPRUCEDIAGONALS 3/I6SHEET I_ _ ml 2REQ -___EAR LGj CRACK8 EPOXY---- LG_ TE- RECV\. \ R 1/16 BALSA SHEETING TO HER FEATHER IN1/8 MW. -- -0 -POLYHEDRAL DETAIL 1/32 PLY/I/B MUSICJl/8PLY_______________ DOUBLER STRIPAILERON BLUE RIDGE COMET I/B PIYWHEELSWI 9REO I/16BALSAHORN IGNED AND DRAWN BY -BIND8SOLDERALLWOODBALSAUNLESSIS- I/16BALSADAVID FORTUNA SIDE SHEETING OMiTTED- ---- NYLON LG- I- 4-1/8 BALSAWINGSPAN 62ENGINE 25 40 CLAMPSW222RE P COMPUTERIZED 9/8/95 RWFR/ESTADI/PLY LG PLATE CUT 4 I/B RIBSFLAP RIBS70 2 3 4 5 BLUE RIDGE COMET NA J~ R 7 ~j j iSFO b FL 0 0115 LITFLE PLANLO5JJ01 ~ 5 2F mOAN (JCLDTlMFR sEr5TAiN CD CDOF vr01F 5001- CY-SII oorH 0 CD 1 CD CO -L 0 Co FE HAS W-F -ThElL1YGE1JP SArLm lIr rRLxLE 5EL notched hinges glued bottom basswood section spar capped /32 X 3/ plywood flaps cut A2 basswood strengthen flaps keep warping covered 75-ounce glass cloth applied thin coat epoxy inside flaps also given thin coat epoxy fiberglass resin can used instead Before epoxy sets up cover Saran Wrap weight down allow dry eading edge added flap epoxied place flap has finished fiberglass resin use resin attach leading edge may need tapered slightly rear fit wing flap servo mounted 1/8 X plywood rails glued bottom wing Standard aileron hookup hardware can used hook up flaps made horn wires 078 music wire recess cut bottom sheeting wire wire flap servo soldered ones coming off horns making Y connection Maximum flap travel should about 400 Make sure both flaps deploy same amount Outer Panels constructed like inner panels After pinning down leading edge spars trailing edge check against inner panel make sure align before gluing ribs Rib W-2 joins inner panel can left off until panels joined wingtip laminated very light t balsa outer panels complete join inner panels Lay inner panel down flat raise outer panel correct dihedral angle After everything dry add rib W-2 tip spar spar cracked rib W-3 bends down tip Add gussets indicated other inner panel can laid down procedure repeated Fuselage The fuselage basically box square material sheet balsa added around nose sides built directly over plan youre using 36-inch material splice bottom longeron rear longeron also needs cut front indicated Crack longeron areas fill epoxy pin down follow bottom curvature wont follow curvature exactly point will sanded shape later Just pin place overlaps outline slightly After framework completed lay Saran Wrap over build second frame over first Add 3/is sheet balsa between frames indicated Very light wood used except around landing gear 2 plywood doubler glued inside fuselage slow-drying cyanoacrylate CyA epoxy Weight down until its completely dry Make sure have left right side Bevel rear fuselage frames have /16 thickness joined landing-gear plate slid -inch slots fuselage sides Bevel plate front epoxy place Check make sure fuselage sides true Glue former F-2 pull tail together Epoxy F-I place clamp sides together until theyre dry Bend front landing-gear legs 1/ music wire mount place nylon landing-gear clamps Its best first bend rear gear legs soft wire such florists wire obtain correct angles rear gear legs bent 900 angles join front legs makes hard visualize correct angles two-dimensional plan view Bind legs copper wire solder together Drill maple engine mounts 6-32 bolts install blind nuts Slide engine mounts place epoxy Triangular stock epoxied behind F- 1 extending up engine mounts Temporarily add engine plate engine drill hole throttle cable Add 3A6-square top bottom crossmembers Glue 1/16 plywood under C-3 add 10-32 blind nuts Epoxy around blind nuts added security C-2 C-3 now glued place C-3 should cracked cabin angle changes model has flaps C-3 will need trimmed clear flap horns Cut tank floor /s Lite Ply Glue place add ngular stock under Sullivan four-ounce slant tank used prototype Fuelproof around tank area resin epoxy Add former C-I its slightly oversize beveled around top Plank very light balsa adding top piece first cut approximate shape glued place sanded match side contour side strips added Glue A6 sheeting forward part fuselage sides glued sheeting within -inch cabin windows added windows framing just before covering keeps windows getting messed up during construction After bottom sheeting glued place scrap balsa can added along longerons feather decide use cowling carve balsa block make approximately 2 undersize used mold fiberglass cowl using balloon method use balloon method glue dowel base block used mount cowl block vise Cover cowl block Saran Wrap add layer heavyweight fiberglass cloth Smooth out cloth hold place thumbtacks attached underside block Apply heavy coat fiberglass resin over cloth Inflate balloon thats about twice size cowl block Stretch balloon over cowl block slowly deflating go Make sure balloon big enough before start make sure have balloon After cowl has dried remove fiberglass cowl form apply layer heavyweight cloth inside cowl Afterward can trimmed sanded down Glue stabilizer fin place check alignment carefully before glue sets up Add very light /16 balsa top stabilizer around fin Mount tail wheel using Carl Goldberg similar tail-wheel bracket can removed until model finished mounted rudder elevator servos between F-3 F-4 location may vary slightly balance F-3 glued place first two side members S-l finally F-4B F-4T can added Servo rails 1/8 x 3/ plywood Pushrods made ls point everything should shaped sanded preparation covering Add cabin windows framing Framing can cut 2 plywood fuselage side sheeting can feathered-in match cabin window thickness open framework strong covering material recommended Silk Coverite similar material would good choice used classic dope finish model giving Old-Timer appearance 3A6 dowel added front windshield support followed windshield cut windshield shape taped edges down ran hair dryer across form contour Its epoxied place Fuelproof inside nose area epoxy fiberglass resin install engine radio Everything should given final check Ive used several sizes engines model 25 29 seems work best 40-sized four-stroke would ideal type model Flying first flight wait until winds calm Rudder control little sensitive other Blue Ridge Comet flies beautifully very stable Landings breeze really doesnt matter engine running youre using flaps would suggest completely trim out model first Once have some altitude try out flaps get feel Approximately 1 0200 flaps works well takeoff use extra drag will offset extra lift careful about retracting flaps low altitude low airspeed As flaps come up lift lost could cause model drop stall Flaps seem increase stability allow model fly very slowly Well pretty much covers Take time relax Blue Ridge Comet flies lazily overhead represents time things simpler rushed guess doesnt hurt go back time time Special thanks Bent Evans chief test/crash pilot Greta Aeromodelers assistance test flights Model Aviation