ZNJLAD earlier era military trainers see dont agree some times small better U David Fortuna IVE ALWAYS affinity smaller models first models years ago stick-and-tissue designs Some best flights airplanes lightweight structure see-through tissue covering gives certain charm still enjoy larger models once its nice return simpler forms Because short building time low cost find relaxing fly Air Cadet fits category Designed fun flier its easy carry field requires basic support equipmentbattery fuel Theres no need runwayjust gentle heave model blue can equip one- two-channel radio let loose Free Flighter design reminiscent Cessna Bird Dog Its blue-and-yellow color scheme though echoes seen military trainers 1930s Army stars- lettering numbers add realism Since wanted model fly well 020 engine important keep weight down using larger engine would have cheating recommend Cox Tee Dee 020 use Pee Wee 020 take extra care keep plane light possible micro radio set tissue-and-clear-dope covering will help quite bit An 049 engine could used modifications include sheeting entire fuselage A6 balsa building tail surfaces out solid %-in contest balsa bending landing gear /32 music wire used radio equipment hand mixed bag mini battery pack microservo standard servo four-channel receiver micro radio system would make practical choice radio equipment weighed almost 5 oz consider limit optimal performance finished model weighs 13 oz ready fly giving wing loading about 75 oz/sq ft its large wing high-lift airfoil Cadet sometimes reluctant come down Construction Very lightweight 4-to-6lb-density balsa used structure wood will vary density look firmer sheets straight grain Use medium-to-hard balsa strip stock spruce main wing spar Providing youre using no larger 020 engine could substitute hard balsa main spar Spruce also used high-stress areas fuselage weighs little balsa youll appreciate its extra strength less perfect landings 14 Model Aviation Simple pleasing lines authentic Army insignia numbers lend realism compact fun flier use wing struts rather rubberbands also improves Air Cadets static display appearance wheels lightweight plastic have plastic hub cover Fit 020 engine micro radio system 13-oz rendition Cox 5 x 3 plastic propeller provides adequate thrust realistic flights Wing Build structure three sections Make center section first since will help aligning outer panels Glue dihedral braces center section leading edge LE spar Once glue has set pin LE spar trailing edge TE place Add bottom sheeting two sections fitting between bE spar A-in sheet balsa TE Glue Cl ribs place Glue rear filler blocks between flush top surfaces ribs Drill holes 4-40 nylon hold-down bolts Sheet top wing leaving cutouts A6 plywood inserts support bolts prevent plywood splitting its best drill holes before cutting out inserts Make sure cutouts line up ones previously drilled balsa sheet glue inserts place Build outer panels following similar procedure Check leading edges spars aligned center section Glue bottom sheeting three sections fitting between LE spars TE Pin center section flat block up wing tip two inches join glue panels glue has set add Cl rib sheet remaining top sections Sand LB wing tips correct contours Very lightweight balsa sands easily take care overdo wing struts optional used mainly add realism static display struts can secured several ways Mine use aluminum tab secured 0 x %-in wood screws end /32 music wire pin plugs A6-OD aluminum tube epoxied fuselage other end Tail surfaces Construction fairly simple brief explanation necessary Build fin stabilizer various sizes balsa shown plan Cut %-in-wide slot fin center stab Note A6 balsa glued bottom stabilizer oaly Cut elevator rudder A-in sheet balsa Join elevators A-in dowel Cut control horns A6 plywood lighter weight less conspicuous nylon horns appear somewhat bulky model small Glue horns place before installing elevator rudder use nylon horns may have cut down bit Cut hinge slots Use whatever type hinge prefer although small hinges best Check hinges bind control surfaces move freely Lightly sand leading edges shape feathering match tip contour fin can glued stabilizer after covering Fuselage Begin making two identical sides Note uprights cabin area extend bottom longeron cabin top single piece 0 SIRSCU - 1/05G SPAt I/O I/U TRUILING EDGE HIII14 MOANS U/SO PLUWOOD THIS COHERINGIHUL PITWOOD BRUCE TRANS HaS-SAWN IIIC IIN PLYWOOD REACE IIRULSU TILL I/US PLYWOOD REUCE I/B SHRETHOLD DOWN BOLTSI US REQ CUT 2 HERRUn RIBS IHTR SMERT ffi ESH1D 1/ID BOTTOM ONLS Il/S HLSWAAD ELEAUTOR DARN TEUTOER IN SHRETING ARWITRA CURIG ASS RIGHT THRUST IT ARTlESS-INSNUV{UL HR SHERS ROTTOM—SALES PAR S-SD BLIND -TL ST I/ID BALSA SITREPSEDST THUD TLSWAOA F"DRILL HOLRSDOURLE SEW LANDNU GEAR LXJ AND EPOXY LSTHSL SLYWOOD AIR CADET DESIGNED UTLA DRAWN ES DUHID PARTUNU WINGSTUN 4/01-2 CHUNNESS RECOMMENDED ENGINE DOE 000 TEE DEE SI552A0 ELEAUTOR HORN OPPOSITE RINAUNSEPODS SR BU SPRUCEHEl/R AOWL PUSHEODS552 MUSSoBIDE 1/U WHEELI/lU PLHWOAU RUDDER TURN 0 0 0 Cu 0 0 0 C 0 U U 4 U 0 N CD IL February 1992 15 Army stars lettering numbers show up nicely rear HERS LIARS S/B TIPS glue has set remove sides plan bevel rear shown top view shortened right side /32 nose provide right thrust though flight tests showed unnecessary Glue 4-in crossmembers place beginning cabin area Pull tail together glue securely Fit 2-56 blind nuts firewall glue latter place Bend landing gear 078 music wire Using No 59 drill bit drill holes %2 plywood gear plate approximately Y16-in intervals thread Dacron flying line through holes bind gear place Coat landing gear Dacron line either epoxy CyA cyanoacrylate glue Glue gear assembly between R-in-sq longerons Add /16 sheeting firewall landing gear plate sheeting installed cross grained flush bottom longerons Glue side gussets /16 side bottom sheeting Feather sheeting longerons aft cabin area As learned hard way its best install radio before gluing turtledeck formers place used %-in dowels pushrods 046 music wire pushrod ends Use 900 bend rear pushrod ends since plywood horns glued place before control surfaces installed Z-bend won t work Secure rear ends pushrod keeper desired use 032 Sullivan Gold-N-Rod instead making own pushrod standard-size clevis may used pushrod exit holes fuselage may have relocated Pin tail place temporarily position servos hooking up controls servos may have shifted later balance model correctly can mounted x -in plywood rails Add turtledeck formers Bevel F3 top bottom Depending pushrod locations F4A F4B may have cut out pushrod clearance Add top fuselage stringers remaining sheeting including cowl sections Install small balsa block behind F7 sand fuselage contour Bend tail gear 032 music wire Epoxy gear its 42 plywood plate Glue plate top %-in-sq longerons Mount wing fuselage 34z plywood tab l/ aluminum used prototype front 4-40 nylon bolts rear front tab fits under /-in Lite Ply plate keyed plywood tab mount Install 4-40 blind nuts A-in Lite Ply plate rear glue plate place Make balsa-and-microballoon fillet between wing leading edge cabin top Covering final assembly Make sure parts structure shaped sanded smooth Any rough joints cracks can filled plastic balsa resanded Fuel proof inside cowl epoxy taking care keep adhesive off blind nuts Cover model choice tissue silkspan lightweight iron-on covering used Sig Manufacturings medium-weight Plyspan Japanese tissue strong lightweight material can applied wet making easier work out wrinkles reduce warping used Sig Lite-Coat dope exclusively brushed two coats clear dope prepare wood areas contact covering Sand dope 400-grit paper dry Cut covering slightly oversized work out wrinldes still damp Attach covering brushing clear dope through along edges sheeted sections brush dope over entire area covered Trim off excess tissue dope down edges Cover fin stabilizer separately glue together cutting tissue away necessary Glue assembly fuselage faired tail plastic balsa finishing job small sections tissue keep weight down used clear dope wing horizontal tail limiting colored dope fuselage vertical tail Three four coats thinned dope should sufficient Install 46 dowel windshield brace add windshield side windows left open radio access Install engine control surfaces wheels used Sig lightweight plastic wheels Add radio making sure center-of-gravity matches shown plan Glue servo rails place Flying Choose calm day large grassy field first flights Its best surround yourself lots space until youve developed feel model flies Test glide airplane glide should flat no tendency tarn Check everything operating properly battery pack securely positioned inside fuselage open-cabin model dont want battery pack go sailing out during loop Adjust engine smooth operation through entire run secret starting small engines keeping running use high-nitro fuel 25-30% keep engine clean Avoid spilling raw fuel model its hard finish Enjoy simplicity ease good flying habits versatile little airplane D 16 Model Aviation m Loll Ihe tall surlaces have hinged temporarily placed fuselage pushrods have positioned checked out yet installed Note small balsa block front stabilizer leading edge After stab has glued place everything faired plastic balsa Right fuselage awaits sheeting covering hold-down key cut out before front ply plate glued place Bottom view wing corner secuon showing front hold-down tab holes 4-40 nylon bolts rear air cadet 76 DAVIDFOPTUNA Y8 LITh PL z PLi SQ SPRUCESQ BALSA PR - 50 SPRUCE 5PRUC - SQ SPRUCESPAR kL~- --~A AL$A RES IPLASTIC /HEL5
Edition: Model Aviation - 1992/02
Page Numbers: 14, 15, 16, 17
ZNJLAD earlier era military trainers see dont agree some times small better U David Fortuna IVE ALWAYS affinity smaller models first models years ago stick-and-tissue designs Some best flights airplanes lightweight structure see-through tissue covering gives certain charm still enjoy larger models once its nice return simpler forms Because short building time low cost find relaxing fly Air Cadet fits category Designed fun flier its easy carry field requires basic support equipmentbattery fuel Theres no need runwayjust gentle heave model blue can equip one- two-channel radio let loose Free Flighter design reminiscent Cessna Bird Dog Its blue-and-yellow color scheme though echoes seen military trainers 1930s Army stars- lettering numbers add realism Since wanted model fly well 020 engine important keep weight down using larger engine would have cheating recommend Cox Tee Dee 020 use Pee Wee 020 take extra care keep plane light possible micro radio set tissue-and-clear-dope covering will help quite bit An 049 engine could used modifications include sheeting entire fuselage A6 balsa building tail surfaces out solid %-in contest balsa bending landing gear /32 music wire used radio equipment hand mixed bag mini battery pack microservo standard servo four-channel receiver micro radio system would make practical choice radio equipment weighed almost 5 oz consider limit optimal performance finished model weighs 13 oz ready fly giving wing loading about 75 oz/sq ft its large wing high-lift airfoil Cadet sometimes reluctant come down Construction Very lightweight 4-to-6lb-density balsa used structure wood will vary density look firmer sheets straight grain Use medium-to-hard balsa strip stock spruce main wing spar Providing youre using no larger 020 engine could substitute hard balsa main spar Spruce also used high-stress areas fuselage weighs little balsa youll appreciate its extra strength less perfect landings 14 Model Aviation Simple pleasing lines authentic Army insignia numbers lend realism compact fun flier use wing struts rather rubberbands also improves Air Cadets static display appearance wheels lightweight plastic have plastic hub cover Fit 020 engine micro radio system 13-oz rendition Cox 5 x 3 plastic propeller provides adequate thrust realistic flights Wing Build structure three sections Make center section first since will help aligning outer panels Glue dihedral braces center section leading edge LE spar Once glue has set pin LE spar trailing edge TE place Add bottom sheeting two sections fitting between bE spar A-in sheet balsa TE Glue Cl ribs place Glue rear filler blocks between flush top surfaces ribs Drill holes 4-40 nylon hold-down bolts Sheet top wing leaving cutouts A6 plywood inserts support bolts prevent plywood splitting its best drill holes before cutting out inserts Make sure cutouts line up ones previously drilled balsa sheet glue inserts place Build outer panels following similar procedure Check leading edges spars aligned center section Glue bottom sheeting three sections fitting between LE spars TE Pin center section flat block up wing tip two inches join glue panels glue has set add Cl rib sheet remaining top sections Sand LB wing tips correct contours Very lightweight balsa sands easily take care overdo wing struts optional used mainly add realism static display struts can secured several ways Mine use aluminum tab secured 0 x %-in wood screws end /32 music wire pin plugs A6-OD aluminum tube epoxied fuselage other end Tail surfaces Construction fairly simple brief explanation necessary Build fin stabilizer various sizes balsa shown plan Cut %-in-wide slot fin center stab Note A6 balsa glued bottom stabilizer oaly Cut elevator rudder A-in sheet balsa Join elevators A-in dowel Cut control horns A6 plywood lighter weight less conspicuous nylon horns appear somewhat bulky model small Glue horns place before installing elevator rudder use nylon horns may have cut down bit Cut hinge slots Use whatever type hinge prefer although small hinges best Check hinges bind control surfaces move freely Lightly sand leading edges shape feathering match tip contour fin can glued stabilizer after covering Fuselage Begin making two identical sides Note uprights cabin area extend bottom longeron cabin top single piece 0 SIRSCU - 1/05G SPAt I/O I/U TRUILING EDGE HIII14 MOANS U/SO PLUWOOD THIS COHERINGIHUL PITWOOD BRUCE TRANS HaS-SAWN IIIC IIN PLYWOOD REACE IIRULSU TILL I/US PLYWOOD REUCE I/B SHRETHOLD DOWN BOLTSI US REQ CUT 2 HERRUn RIBS IHTR SMERT ffi ESH1D 1/ID BOTTOM ONLS Il/S HLSWAAD ELEAUTOR DARN TEUTOER IN SHRETING ARWITRA CURIG ASS RIGHT THRUST IT ARTlESS-INSNUV{UL HR SHERS ROTTOM—SALES PAR S-SD BLIND -TL ST I/ID BALSA SITREPSEDST THUD TLSWAOA F"DRILL HOLRSDOURLE SEW LANDNU GEAR LXJ AND EPOXY LSTHSL SLYWOOD AIR CADET DESIGNED UTLA DRAWN ES DUHID PARTUNU WINGSTUN 4/01-2 CHUNNESS RECOMMENDED ENGINE DOE 000 TEE DEE SI552A0 ELEAUTOR HORN OPPOSITE RINAUNSEPODS SR BU SPRUCEHEl/R AOWL PUSHEODS552 MUSSoBIDE 1/U WHEELI/lU PLHWOAU RUDDER TURN 0 0 0 Cu 0 0 0 C 0 U U 4 U 0 N CD IL February 1992 15 Army stars lettering numbers show up nicely rear HERS LIARS S/B TIPS glue has set remove sides plan bevel rear shown top view shortened right side /32 nose provide right thrust though flight tests showed unnecessary Glue 4-in crossmembers place beginning cabin area Pull tail together glue securely Fit 2-56 blind nuts firewall glue latter place Bend landing gear 078 music wire Using No 59 drill bit drill holes %2 plywood gear plate approximately Y16-in intervals thread Dacron flying line through holes bind gear place Coat landing gear Dacron line either epoxy CyA cyanoacrylate glue Glue gear assembly between R-in-sq longerons Add /16 sheeting firewall landing gear plate sheeting installed cross grained flush bottom longerons Glue side gussets /16 side bottom sheeting Feather sheeting longerons aft cabin area As learned hard way its best install radio before gluing turtledeck formers place used %-in dowels pushrods 046 music wire pushrod ends Use 900 bend rear pushrod ends since plywood horns glued place before control surfaces installed Z-bend won t work Secure rear ends pushrod keeper desired use 032 Sullivan Gold-N-Rod instead making own pushrod standard-size clevis may used pushrod exit holes fuselage may have relocated Pin tail place temporarily position servos hooking up controls servos may have shifted later balance model correctly can mounted x -in plywood rails Add turtledeck formers Bevel F3 top bottom Depending pushrod locations F4A F4B may have cut out pushrod clearance Add top fuselage stringers remaining sheeting including cowl sections Install small balsa block behind F7 sand fuselage contour Bend tail gear 032 music wire Epoxy gear its 42 plywood plate Glue plate top %-in-sq longerons Mount wing fuselage 34z plywood tab l/ aluminum used prototype front 4-40 nylon bolts rear front tab fits under /-in Lite Ply plate keyed plywood tab mount Install 4-40 blind nuts A-in Lite Ply plate rear glue plate place Make balsa-and-microballoon fillet between wing leading edge cabin top Covering final assembly Make sure parts structure shaped sanded smooth Any rough joints cracks can filled plastic balsa resanded Fuel proof inside cowl epoxy taking care keep adhesive off blind nuts Cover model choice tissue silkspan lightweight iron-on covering used Sig Manufacturings medium-weight Plyspan Japanese tissue strong lightweight material can applied wet making easier work out wrinkles reduce warping used Sig Lite-Coat dope exclusively brushed two coats clear dope prepare wood areas contact covering Sand dope 400-grit paper dry Cut covering slightly oversized work out wrinldes still damp Attach covering brushing clear dope through along edges sheeted sections brush dope over entire area covered Trim off excess tissue dope down edges Cover fin stabilizer separately glue together cutting tissue away necessary Glue assembly fuselage faired tail plastic balsa finishing job small sections tissue keep weight down used clear dope wing horizontal tail limiting colored dope fuselage vertical tail Three four coats thinned dope should sufficient Install 46 dowel windshield brace add windshield side windows left open radio access Install engine control surfaces wheels used Sig lightweight plastic wheels Add radio making sure center-of-gravity matches shown plan Glue servo rails place Flying Choose calm day large grassy field first flights Its best surround yourself lots space until youve developed feel model flies Test glide airplane glide should flat no tendency tarn Check everything operating properly battery pack securely positioned inside fuselage open-cabin model dont want battery pack go sailing out during loop Adjust engine smooth operation through entire run secret starting small engines keeping running use high-nitro fuel 25-30% keep engine clean Avoid spilling raw fuel model its hard finish Enjoy simplicity ease good flying habits versatile little airplane D 16 Model Aviation m Loll Ihe tall surlaces have hinged temporarily placed fuselage pushrods have positioned checked out yet installed Note small balsa block front stabilizer leading edge After stab has glued place everything faired plastic balsa Right fuselage awaits sheeting covering hold-down key cut out before front ply plate glued place Bottom view wing corner secuon showing front hold-down tab holes 4-40 nylon bolts rear air cadet 76 DAVIDFOPTUNA Y8 LITh PL z PLi SQ SPRUCESQ BALSA PR - 50 SPRUCE 5PRUC - SQ SPRUCESPAR kL~- --~A AL$A RES IPLASTIC /HEL5
Edition: Model Aviation - 1992/02
Page Numbers: 14, 15, 16, 17
ZNJLAD earlier era military trainers see dont agree some times small better U David Fortuna IVE ALWAYS affinity smaller models first models years ago stick-and-tissue designs Some best flights airplanes lightweight structure see-through tissue covering gives certain charm still enjoy larger models once its nice return simpler forms Because short building time low cost find relaxing fly Air Cadet fits category Designed fun flier its easy carry field requires basic support equipmentbattery fuel Theres no need runwayjust gentle heave model blue can equip one- two-channel radio let loose Free Flighter design reminiscent Cessna Bird Dog Its blue-and-yellow color scheme though echoes seen military trainers 1930s Army stars- lettering numbers add realism Since wanted model fly well 020 engine important keep weight down using larger engine would have cheating recommend Cox Tee Dee 020 use Pee Wee 020 take extra care keep plane light possible micro radio set tissue-and-clear-dope covering will help quite bit An 049 engine could used modifications include sheeting entire fuselage A6 balsa building tail surfaces out solid %-in contest balsa bending landing gear /32 music wire used radio equipment hand mixed bag mini battery pack microservo standard servo four-channel receiver micro radio system would make practical choice radio equipment weighed almost 5 oz consider limit optimal performance finished model weighs 13 oz ready fly giving wing loading about 75 oz/sq ft its large wing high-lift airfoil Cadet sometimes reluctant come down Construction Very lightweight 4-to-6lb-density balsa used structure wood will vary density look firmer sheets straight grain Use medium-to-hard balsa strip stock spruce main wing spar Providing youre using no larger 020 engine could substitute hard balsa main spar Spruce also used high-stress areas fuselage weighs little balsa youll appreciate its extra strength less perfect landings 14 Model Aviation Simple pleasing lines authentic Army insignia numbers lend realism compact fun flier use wing struts rather rubberbands also improves Air Cadets static display appearance wheels lightweight plastic have plastic hub cover Fit 020 engine micro radio system 13-oz rendition Cox 5 x 3 plastic propeller provides adequate thrust realistic flights Wing Build structure three sections Make center section first since will help aligning outer panels Glue dihedral braces center section leading edge LE spar Once glue has set pin LE spar trailing edge TE place Add bottom sheeting two sections fitting between bE spar A-in sheet balsa TE Glue Cl ribs place Glue rear filler blocks between flush top surfaces ribs Drill holes 4-40 nylon hold-down bolts Sheet top wing leaving cutouts A6 plywood inserts support bolts prevent plywood splitting its best drill holes before cutting out inserts Make sure cutouts line up ones previously drilled balsa sheet glue inserts place Build outer panels following similar procedure Check leading edges spars aligned center section Glue bottom sheeting three sections fitting between LE spars TE Pin center section flat block up wing tip two inches join glue panels glue has set add Cl rib sheet remaining top sections Sand LB wing tips correct contours Very lightweight balsa sands easily take care overdo wing struts optional used mainly add realism static display struts can secured several ways Mine use aluminum tab secured 0 x %-in wood screws end /32 music wire pin plugs A6-OD aluminum tube epoxied fuselage other end Tail surfaces Construction fairly simple brief explanation necessary Build fin stabilizer various sizes balsa shown plan Cut %-in-wide slot fin center stab Note A6 balsa glued bottom stabilizer oaly Cut elevator rudder A-in sheet balsa Join elevators A-in dowel Cut control horns A6 plywood lighter weight less conspicuous nylon horns appear somewhat bulky model small Glue horns place before installing elevator rudder use nylon horns may have cut down bit Cut hinge slots Use whatever type hinge prefer although small hinges best Check hinges bind control surfaces move freely Lightly sand leading edges shape feathering match tip contour fin can glued stabilizer after covering Fuselage Begin making two identical sides Note uprights cabin area extend bottom longeron cabin top single piece 0 SIRSCU - 1/05G SPAt I/O I/U TRUILING EDGE HIII14 MOANS U/SO PLUWOOD THIS COHERINGIHUL PITWOOD BRUCE TRANS HaS-SAWN IIIC IIN PLYWOOD REACE IIRULSU TILL I/US PLYWOOD REUCE I/B SHRETHOLD DOWN BOLTSI US REQ CUT 2 HERRUn RIBS IHTR SMERT ffi ESH1D 1/ID BOTTOM ONLS Il/S HLSWAAD ELEAUTOR DARN TEUTOER IN SHRETING ARWITRA CURIG ASS RIGHT THRUST IT ARTlESS-INSNUV{UL HR SHERS ROTTOM—SALES PAR S-SD BLIND -TL ST I/ID BALSA SITREPSEDST THUD TLSWAOA F"DRILL HOLRSDOURLE SEW LANDNU GEAR LXJ AND EPOXY LSTHSL SLYWOOD AIR CADET DESIGNED UTLA DRAWN ES DUHID PARTUNU WINGSTUN 4/01-2 CHUNNESS RECOMMENDED ENGINE DOE 000 TEE DEE SI552A0 ELEAUTOR HORN OPPOSITE RINAUNSEPODS SR BU SPRUCEHEl/R AOWL PUSHEODS552 MUSSoBIDE 1/U WHEELI/lU PLHWOAU RUDDER TURN 0 0 0 Cu 0 0 0 C 0 U U 4 U 0 N CD IL February 1992 15 Army stars lettering numbers show up nicely rear HERS LIARS S/B TIPS glue has set remove sides plan bevel rear shown top view shortened right side /32 nose provide right thrust though flight tests showed unnecessary Glue 4-in crossmembers place beginning cabin area Pull tail together glue securely Fit 2-56 blind nuts firewall glue latter place Bend landing gear 078 music wire Using No 59 drill bit drill holes %2 plywood gear plate approximately Y16-in intervals thread Dacron flying line through holes bind gear place Coat landing gear Dacron line either epoxy CyA cyanoacrylate glue Glue gear assembly between R-in-sq longerons Add /16 sheeting firewall landing gear plate sheeting installed cross grained flush bottom longerons Glue side gussets /16 side bottom sheeting Feather sheeting longerons aft cabin area As learned hard way its best install radio before gluing turtledeck formers place used %-in dowels pushrods 046 music wire pushrod ends Use 900 bend rear pushrod ends since plywood horns glued place before control surfaces installed Z-bend won t work Secure rear ends pushrod keeper desired use 032 Sullivan Gold-N-Rod instead making own pushrod standard-size clevis may used pushrod exit holes fuselage may have relocated Pin tail place temporarily position servos hooking up controls servos may have shifted later balance model correctly can mounted x -in plywood rails Add turtledeck formers Bevel F3 top bottom Depending pushrod locations F4A F4B may have cut out pushrod clearance Add top fuselage stringers remaining sheeting including cowl sections Install small balsa block behind F7 sand fuselage contour Bend tail gear 032 music wire Epoxy gear its 42 plywood plate Glue plate top %-in-sq longerons Mount wing fuselage 34z plywood tab l/ aluminum used prototype front 4-40 nylon bolts rear front tab fits under /-in Lite Ply plate keyed plywood tab mount Install 4-40 blind nuts A-in Lite Ply plate rear glue plate place Make balsa-and-microballoon fillet between wing leading edge cabin top Covering final assembly Make sure parts structure shaped sanded smooth Any rough joints cracks can filled plastic balsa resanded Fuel proof inside cowl epoxy taking care keep adhesive off blind nuts Cover model choice tissue silkspan lightweight iron-on covering used Sig Manufacturings medium-weight Plyspan Japanese tissue strong lightweight material can applied wet making easier work out wrinkles reduce warping used Sig Lite-Coat dope exclusively brushed two coats clear dope prepare wood areas contact covering Sand dope 400-grit paper dry Cut covering slightly oversized work out wrinldes still damp Attach covering brushing clear dope through along edges sheeted sections brush dope over entire area covered Trim off excess tissue dope down edges Cover fin stabilizer separately glue together cutting tissue away necessary Glue assembly fuselage faired tail plastic balsa finishing job small sections tissue keep weight down used clear dope wing horizontal tail limiting colored dope fuselage vertical tail Three four coats thinned dope should sufficient Install 46 dowel windshield brace add windshield side windows left open radio access Install engine control surfaces wheels used Sig lightweight plastic wheels Add radio making sure center-of-gravity matches shown plan Glue servo rails place Flying Choose calm day large grassy field first flights Its best surround yourself lots space until youve developed feel model flies Test glide airplane glide should flat no tendency tarn Check everything operating properly battery pack securely positioned inside fuselage open-cabin model dont want battery pack go sailing out during loop Adjust engine smooth operation through entire run secret starting small engines keeping running use high-nitro fuel 25-30% keep engine clean Avoid spilling raw fuel model its hard finish Enjoy simplicity ease good flying habits versatile little airplane D 16 Model Aviation m Loll Ihe tall surlaces have hinged temporarily placed fuselage pushrods have positioned checked out yet installed Note small balsa block front stabilizer leading edge After stab has glued place everything faired plastic balsa Right fuselage awaits sheeting covering hold-down key cut out before front ply plate glued place Bottom view wing corner secuon showing front hold-down tab holes 4-40 nylon bolts rear air cadet 76 DAVIDFOPTUNA Y8 LITh PL z PLi SQ SPRUCESQ BALSA PR - 50 SPRUCE 5PRUC - SQ SPRUCESPAR kL~- --~A AL$A RES IPLASTIC /HEL5
Edition: Model Aviation - 1992/02
Page Numbers: 14, 15, 16, 17
ZNJLAD earlier era military trainers see dont agree some times small better U David Fortuna IVE ALWAYS affinity smaller models first models years ago stick-and-tissue designs Some best flights airplanes lightweight structure see-through tissue covering gives certain charm still enjoy larger models once its nice return simpler forms Because short building time low cost find relaxing fly Air Cadet fits category Designed fun flier its easy carry field requires basic support equipmentbattery fuel Theres no need runwayjust gentle heave model blue can equip one- two-channel radio let loose Free Flighter design reminiscent Cessna Bird Dog Its blue-and-yellow color scheme though echoes seen military trainers 1930s Army stars- lettering numbers add realism Since wanted model fly well 020 engine important keep weight down using larger engine would have cheating recommend Cox Tee Dee 020 use Pee Wee 020 take extra care keep plane light possible micro radio set tissue-and-clear-dope covering will help quite bit An 049 engine could used modifications include sheeting entire fuselage A6 balsa building tail surfaces out solid %-in contest balsa bending landing gear /32 music wire used radio equipment hand mixed bag mini battery pack microservo standard servo four-channel receiver micro radio system would make practical choice radio equipment weighed almost 5 oz consider limit optimal performance finished model weighs 13 oz ready fly giving wing loading about 75 oz/sq ft its large wing high-lift airfoil Cadet sometimes reluctant come down Construction Very lightweight 4-to-6lb-density balsa used structure wood will vary density look firmer sheets straight grain Use medium-to-hard balsa strip stock spruce main wing spar Providing youre using no larger 020 engine could substitute hard balsa main spar Spruce also used high-stress areas fuselage weighs little balsa youll appreciate its extra strength less perfect landings 14 Model Aviation Simple pleasing lines authentic Army insignia numbers lend realism compact fun flier use wing struts rather rubberbands also improves Air Cadets static display appearance wheels lightweight plastic have plastic hub cover Fit 020 engine micro radio system 13-oz rendition Cox 5 x 3 plastic propeller provides adequate thrust realistic flights Wing Build structure three sections Make center section first since will help aligning outer panels Glue dihedral braces center section leading edge LE spar Once glue has set pin LE spar trailing edge TE place Add bottom sheeting two sections fitting between bE spar A-in sheet balsa TE Glue Cl ribs place Glue rear filler blocks between flush top surfaces ribs Drill holes 4-40 nylon hold-down bolts Sheet top wing leaving cutouts A6 plywood inserts support bolts prevent plywood splitting its best drill holes before cutting out inserts Make sure cutouts line up ones previously drilled balsa sheet glue inserts place Build outer panels following similar procedure Check leading edges spars aligned center section Glue bottom sheeting three sections fitting between LE spars TE Pin center section flat block up wing tip two inches join glue panels glue has set add Cl rib sheet remaining top sections Sand LB wing tips correct contours Very lightweight balsa sands easily take care overdo wing struts optional used mainly add realism static display struts can secured several ways Mine use aluminum tab secured 0 x %-in wood screws end /32 music wire pin plugs A6-OD aluminum tube epoxied fuselage other end Tail surfaces Construction fairly simple brief explanation necessary Build fin stabilizer various sizes balsa shown plan Cut %-in-wide slot fin center stab Note A6 balsa glued bottom stabilizer oaly Cut elevator rudder A-in sheet balsa Join elevators A-in dowel Cut control horns A6 plywood lighter weight less conspicuous nylon horns appear somewhat bulky model small Glue horns place before installing elevator rudder use nylon horns may have cut down bit Cut hinge slots Use whatever type hinge prefer although small hinges best Check hinges bind control surfaces move freely Lightly sand leading edges shape feathering match tip contour fin can glued stabilizer after covering Fuselage Begin making two identical sides Note uprights cabin area extend bottom longeron cabin top single piece 0 SIRSCU - 1/05G SPAt I/O I/U TRUILING EDGE HIII14 MOANS U/SO PLUWOOD THIS COHERINGIHUL PITWOOD BRUCE TRANS HaS-SAWN IIIC IIN PLYWOOD REACE IIRULSU TILL I/US PLYWOOD REUCE I/B SHRETHOLD DOWN BOLTSI US REQ CUT 2 HERRUn RIBS IHTR SMERT ffi ESH1D 1/ID BOTTOM ONLS Il/S HLSWAAD ELEAUTOR DARN TEUTOER IN SHRETING ARWITRA CURIG ASS RIGHT THRUST IT ARTlESS-INSNUV{UL HR SHERS ROTTOM—SALES PAR S-SD BLIND -TL ST I/ID BALSA SITREPSEDST THUD TLSWAOA F"DRILL HOLRSDOURLE SEW LANDNU GEAR LXJ AND EPOXY LSTHSL SLYWOOD AIR CADET DESIGNED UTLA DRAWN ES DUHID PARTUNU WINGSTUN 4/01-2 CHUNNESS RECOMMENDED ENGINE DOE 000 TEE DEE SI552A0 ELEAUTOR HORN OPPOSITE RINAUNSEPODS SR BU SPRUCEHEl/R AOWL PUSHEODS552 MUSSoBIDE 1/U WHEELI/lU PLHWOAU RUDDER TURN 0 0 0 Cu 0 0 0 C 0 U U 4 U 0 N CD IL February 1992 15 Army stars lettering numbers show up nicely rear HERS LIARS S/B TIPS glue has set remove sides plan bevel rear shown top view shortened right side /32 nose provide right thrust though flight tests showed unnecessary Glue 4-in crossmembers place beginning cabin area Pull tail together glue securely Fit 2-56 blind nuts firewall glue latter place Bend landing gear 078 music wire Using No 59 drill bit drill holes %2 plywood gear plate approximately Y16-in intervals thread Dacron flying line through holes bind gear place Coat landing gear Dacron line either epoxy CyA cyanoacrylate glue Glue gear assembly between R-in-sq longerons Add /16 sheeting firewall landing gear plate sheeting installed cross grained flush bottom longerons Glue side gussets /16 side bottom sheeting Feather sheeting longerons aft cabin area As learned hard way its best install radio before gluing turtledeck formers place used %-in dowels pushrods 046 music wire pushrod ends Use 900 bend rear pushrod ends since plywood horns glued place before control surfaces installed Z-bend won t work Secure rear ends pushrod keeper desired use 032 Sullivan Gold-N-Rod instead making own pushrod standard-size clevis may used pushrod exit holes fuselage may have relocated Pin tail place temporarily position servos hooking up controls servos may have shifted later balance model correctly can mounted x -in plywood rails Add turtledeck formers Bevel F3 top bottom Depending pushrod locations F4A F4B may have cut out pushrod clearance Add top fuselage stringers remaining sheeting including cowl sections Install small balsa block behind F7 sand fuselage contour Bend tail gear 032 music wire Epoxy gear its 42 plywood plate Glue plate top %-in-sq longerons Mount wing fuselage 34z plywood tab l/ aluminum used prototype front 4-40 nylon bolts rear front tab fits under /-in Lite Ply plate keyed plywood tab mount Install 4-40 blind nuts A-in Lite Ply plate rear glue plate place Make balsa-and-microballoon fillet between wing leading edge cabin top Covering final assembly Make sure parts structure shaped sanded smooth Any rough joints cracks can filled plastic balsa resanded Fuel proof inside cowl epoxy taking care keep adhesive off blind nuts Cover model choice tissue silkspan lightweight iron-on covering used Sig Manufacturings medium-weight Plyspan Japanese tissue strong lightweight material can applied wet making easier work out wrinkles reduce warping used Sig Lite-Coat dope exclusively brushed two coats clear dope prepare wood areas contact covering Sand dope 400-grit paper dry Cut covering slightly oversized work out wrinldes still damp Attach covering brushing clear dope through along edges sheeted sections brush dope over entire area covered Trim off excess tissue dope down edges Cover fin stabilizer separately glue together cutting tissue away necessary Glue assembly fuselage faired tail plastic balsa finishing job small sections tissue keep weight down used clear dope wing horizontal tail limiting colored dope fuselage vertical tail Three four coats thinned dope should sufficient Install 46 dowel windshield brace add windshield side windows left open radio access Install engine control surfaces wheels used Sig lightweight plastic wheels Add radio making sure center-of-gravity matches shown plan Glue servo rails place Flying Choose calm day large grassy field first flights Its best surround yourself lots space until youve developed feel model flies Test glide airplane glide should flat no tendency tarn Check everything operating properly battery pack securely positioned inside fuselage open-cabin model dont want battery pack go sailing out during loop Adjust engine smooth operation through entire run secret starting small engines keeping running use high-nitro fuel 25-30% keep engine clean Avoid spilling raw fuel model its hard finish Enjoy simplicity ease good flying habits versatile little airplane D 16 Model Aviation m Loll Ihe tall surlaces have hinged temporarily placed fuselage pushrods have positioned checked out yet installed Note small balsa block front stabilizer leading edge After stab has glued place everything faired plastic balsa Right fuselage awaits sheeting covering hold-down key cut out before front ply plate glued place Bottom view wing corner secuon showing front hold-down tab holes 4-40 nylon bolts rear air cadet 76 DAVIDFOPTUNA Y8 LITh PL z PLi SQ SPRUCESQ BALSA PR - 50 SPRUCE 5PRUC - SQ SPRUCESPAR kL~- --~A AL$A RES IPLASTIC /HEL5