NO OCR TEXT NO OCR TEXT museum surprised small P-6 1 seemed parked next Douglas B-26 seemed much larger air plane P-61 fuselage slightly wider pilots shoulders tail booms rudders also much smaller anticipated perception aircrafts size based entirely photographs Black Widow aircraft naturally lends itself being modeled has large wing long nose relatively long tail moment arm addition has imposing look about have taken few liberties certain fea tures actual P-6 1 sharply tapered Outer wing panels very small ailerons main roll control means spoilers widened wing tips inch used full-span strip ailerons full-size aircraft has large number air scoops oil coolers etc hanging over engine cowls Since Im too lazy carve simply left off Finally P-6 1 rather large wing leading edge air intakes also left off Other discrepancies aircraft true scale Since think 0 S Max 10 FSR jewel engine Black Widow model designed 26 Model Aviation Servo installation tight accessible Nylon guides held ply former silicone sealer Former lifts up aileron servo 09 Max 10 rests its mount Triangles cowl supports Rearview shows siightguii wing used improve prop clearance iotof propeller extends beyond cowling side Elevator cable brought up insidethefin position forthe control horn Rudder cable passes through foam rear boom block arge wing makes model excellent flier Covering black EconoKote painted gray windows TflIs big model two small engines must built tight Author shows off 61 local park gqeFPMOCAUW tAt0 Oil LAtCA 4E.- F VAt BUY 7 uCP 7 NKLAR CABiN CANOPY IS ONLYBALSA BLOCK HATCH REMOVABLEFAIRING N 6 BALSA BLOCK FiBERGLASS COWUNGSI/B X 1/4 SPRUCE RAIL FOAM BLOCK CANOPIES AND TAIL TURRET T REMOVABLE HOLLOW BLOCK1/4 BALSA TURRET SHEET TOP ALL GOLDBERG SM NYLON CLEVISES TOOTH PICK/4 BALSA ELEVATOR1/4 BALSA FIN EGS IF NEEDEDAND STABILIZERAND RUDDERS 1/4 HARDWOOD SID FOAM FAIRINGS 1/4 50 BALSA STRINGERS IN BQMS AND FUSELAGE 3/32 BALSA BOOM SHEETING 1/16 SHEET BALSA TOP-BOlTOM WING CENTER SECTION ONLY 1/4 BALSA AILERON T ESTOCK I/4X 3/B BALSA REAR SPAR EXTEND INTO CENTER SEC 3/32 BALSA GUSSETS STIFFEN TE 11F /4 CDBALSA C C 01/32 PLYWOJO FUSECOWL DOUBLER FIAOFBMOUNiS I1/8 PLYVJOO MAIN SPAR F 11/4 BALSA3/32 SHEET BALSAJOINER AT C/L ThRU 4 BAiS FUSELAGE COVERING I/B MWIRE GEAR SANDWICHED3 1/4 MAIN IN TRIPLED I/B PLYWOOD N 3WHEELS 2 I/2NOSEWHEELON V8M WIRE I/B PLYWOOD MAIN SPAR REINFORCING THRU 5 RIB BAYS OPTIONAL I/B PLYWcOD LEDGE REINFOICING TI-IRU 5 RIB BAYS AT WING BUrr SOLID BALSA TIPS 7 1/16 BALSA WEBS BEHIND SPARS 3/BtX 1/2 BALSA L EDGE STOCK I/B X 1/4 SPRUCE SPARS UPPER AND LOWER BRACE I SERVO PLATEMOTOR CONTRA CAPLE3/B LIt BALSA LEAGPLG CAGE BRACE I/TA SHEET THE BOTTOM Er SHEET CR1 RHYTEWI LE cENTER CE GETER 1IIXIIiiiL OJEGOARD WINO HHTER REHiRED ALL AIWONAL BRACES ARE VA PLC IIII \II ii \III 51Lii I1K J II K vASPt IRE PIT BRACE III I/ -7 CR PLY hAl -_ Al~I} WAWINGASWAjAHTjARAS /1 CIA CEOTICAL ACES BET5132HINGE ALL MRSRGISAlA lAB CR SlEET BOTTOM ONLY3/32 /GUSSEEG- AC GE N GOWN 7 E -ALEHON STASH ElRIA-IAlAl-APIWIVIA SHEET TOE N BOTTOMII ________II 0 N3 RIGHT BOOM GAIT RAW AR GRASS TIREI CS SHETSTABILIZER ELEVI/I SHET OTHINO OSGAIT ROOM OSd COCA CAIASOCLECIS I/I SO STRINGERSRJGOC TYMEAGEC NORTHROP P-61 BLACK WIDOW DEsIERED ORAWIN BY FRANK B BAKER ThAONG er DEMARcOALAEB around result rather large model engine size flies perfectly Due its size biggest enemy weight choose wood carefully sand wood much dare Construction airframe construction straightforward control system plumbers nightmare Once decided put servos fuselage die cast unique solution actuating rudders elevators employed nylon tubing flexible metal cable inside stuff usually used motor control sold bulk Hobby Lobby HLH 805 allowed bend tubing various ways reach desired locations also meant once installed would never seen again end result control system smooth functions per fectly yet can easily adjusted trim purposes side effect need partially build wing booms order route control tubing may seem rather formidable actually goes together logically easily have partitioned construction series stages should help doing right thing right time Build framework two inner wing panels joining tbem center using R plywood dihedral braces paying particular atten tion locating top inboard Sheet whole bottom wing inch top trailing edge Roughly shape lead ing edge wing set assembly aside Cut out ood firewalls drill Kraft KM-IS engine mounts install blind nuts Use pattern provided construct two fuel tanks K-S 254 Easy-Solder tin dream work Before closing up tanks 28 Model Aviation Ply plate provides exit point controi caoies romeo snrougn wing Cable guides must routed carefully avoid slop Wing bOom assembly shows aileron cable routing Note gas pipes FULL-SIZE PLANS AVAILABLE . SEE PAGE 140 ALL WING RIBS ARE 3/32 BALSA 14 REGAINED W-lW-2W-3W-A a---LI W-HW-7W-B 2 BEGS BANG FOWARO VB MUSIC WIRE I/B MUSIC WINE MAIN LANSING SEAR ______________ NOSE NEAR BALSA I/B BALSA N-N N -3 3 BEGS LU CUTOUTN-AN-6 IN CENTtR I3/32 BALSA /8 LITE PLY3/32 BALSA3A6 BALSA F-9ARIBF-OA SBHATCH F-IF-HABALSAIOUVNBALGAFII FA-3/35 BALSA F-3 I/B BULSAF-BF-BF-ISS/ID BALSA F-3BF-A 3/IC BALSA IGREM PLYI I/A BALSABALL HALESI/B I/A FON NONE3/32 LGA GEAR MOUNTI/A GAI/A BALSA3/32 BALSACS-S BALSA SOWELCONTROL CABLE SHEETV4 SHEET3/32 SHEET I/B I/HBLOCKSCKT AT F-B BALSA BLOCK-HATCH */s $-n UNEr -- /ICSS/ IF-lASH F-IlFOAM BLOCK BALSA--L -hISI B B 3 INCINENFE IF-AFHAi=-Th-I3AI II,V. ELEKAlII II F-I1F-3F-H1 O -/II SIIIII II II SIGEBYRBEI I/35PLYSOIWIIII II I1F3B3/35FLOCK OAOI BEOVOYNBE I\- TO F-B IIII F-I IFS/ IIII F-IS 2 ---- IR STRINGER F-S-ZJL5IAO I/B3/35 SHEET 3/35BALSA TRINGERSFANELANE SCES0 5 3 5 H 5/16 BALSA______________ MARE RGHT B LEFT VENTS FACE INBOA USE B N SSSA TIN MEET NORTHROP P-6l BLACK DOW DESIGNED & DRAWN BY FRANK B BAKER TRACING BY OE DEMARCO SHEET 2 install filler vents fuel pickup tube Sure make right left tank filler vents always face inboard fuel pickup location varies depending upon whether right left tank Drill /B-in hole fuel tube 1/16-in hole motor control cable firewall Push fuel tube gas tank through hole firewall roughly align tank back firewall Cut six landing gear mounting plates B Sig Lite Ply Bend main landing gear LB-in music wire Use epoxy assemble right left sandwich landing gear middle layer sure wheel axle faces inboard both assemblies Decide boom will left will right Construct booms mounting tirewallincludingthe tank formerson 4 square stringers Make sure holes control cables inside boom Horizontal vertical lines boom formers will help make straight booms particularly careful make sure firewalls zero degrees both vertically horizontally relative center line booms Check again tank vents wheel axles face inboard Once basic boom constructed sheet lower two-thirds 3/32 balsa will find single 3-in sheet can used nver full length boom Soak sheet balsa water containing some household ammonia will bend shape need Pica Gluit does nice job gluing damp sheets frame work N-5 N-8 cover top one-third tail boom Cut three 36-in lengths nylon control cable tubing string control tubes through holes formers Leave about 3 extending beyond N8 rear Install flexible cable tubing motor control through firewall N-2 Put small amount silicone sealer around-each tube keep slipping Now comes important part Place booms under wing mark rudder elevator control tubes touch top sheeting Cut slots cables can pass through Mark motor control tube enters bottom wing cut hole pass through Now pin booms wings after pulling control cables through holes Check see booms parallel both horizontally vertically process may require some cutting trimming booms get good fit alignment Finally use Robart incidence meter measure wing 3 degrees incidence booms February 1982 29 W-5 N-IBAD r p \ 1 I/A PLYVB BALSA N- N-8 B BALSABALSA OS Max 10 FSHs provide plenty power KraftHayes 15 mounts used Note elevator control cable routing along inside edge vertical f zero degrees correct glue booms bottom wing Route rudder elevator motor control tubes through wing ribs shown plans sharp piece brass tubing small round file can used make holes ribs Make 1/16 plywood cable plate route rudder elevator tubes through glue wing Run flexible metal cables through nylon tubing just make sure turns too tight Remove cables set whole assembly aside Build both outer wing panels install strip ailerons Install nylon tubes aileron control lines leaving enough reach center wing Teed control tubes through holes inner panel wing ribs glue outer panels dihedral braces protruding inboard panels Trim aileron fubes center per plans Feed flexible cable left aileron until about 3 comes out right aileron cut off left aileron about 3 showing Hobby Lobby bulk pack pays off need near full-span continuous length cable Install / 16 plywood servo mounting plate Tack-mount servo using mounting tape Solder Z-shaped 1/16-in music wire coupler flexible cable Check see servo can travel its full range Finish sheeting top booms top inner panels wings sure put 1/16 balsa extends lower wing sheeting outer panels provides place anchor wing covering hard part behind us now fuselage sides have 1/32 plywood doublers front half glued place contact cement Construct fuselage using normal procedures Note servo rails installed servos low front end Install favorite steerable nose wheel gear before sheet belly fuselage Note part fuselage above wing built separately Pin completed fuselage wing check alignment horizontal center line fuselage should match booms may have trim bit get everything aligned Glue fuselage bottom wing part fuselage above wing constructed nexL Build whole upper fuselage unit right wing lower fuselage Mark double former occurs rear hatch separation line tack glue formers ahead line either wing fuselage Glue foam block rear cone fuselage Carve sand whole fuselage shape Use razorsaw cut through rear hatch line forward hatch line pry hatch off used Goldberg cowl clips hold forward hatch did show plans hard install Ill leave hatch hold-down usual method Cut fins rudders Out soft sheet install hinges control arms Note both control arms face inboard Glue rudders booms use some foam blocks fair fins booms Add lower fins Now measure distance between vertical fins went well distance should match plans case cut stabilizer/elevator Out soft 14 sheet balsa measured distance Install hinges control horn glue place sure check stabilizer zero degrees relative center line boom Hnal control hookup Install lower plywood cable support plate fuselage Mount aileron servo have taken out Feed rudder elevator motor control nylon tubes through s plywood upper cable support plate use two screws attach lower plate Use some silicone sealer hold tubes place dry trim tubes about 1z ahead plate Run flexible metal cables through rudder elevator tubes leaving about 2 surface end enough reach F-7 fuselage end Solder threaded brass couplers HLH 809 cables Install nylon Kwik-Links middle threaded part clip control horn Trim away nylon tube until full control movement achieved Install rudder elevator motor servos servo tray mount unit servo rails Pin rudders neutral slip Du-Bro solder links flexible cable clip onto servo arms Trim excess cable solder links place Run both motor control cables through 1/16-in nylon tubes until F-7 reached about 2 protrudes beyond firewall Mount solder link motor control servo feed both cables Cut off excess cable solder link cables aileron end cables install threaded brass couplers have trimmed about l1 both threaded non-threaded ends Put aileron servo neutral trim cables until ailerons neutral everything fits control links snapped control horns solder couplers cables Finally run short piece tubing cable rudder servo nose gear install solder link end sure fasten tubing securely fuselage Install radio battery pack fuselage connect servos Set hatch down fuselage see hits things Use knife Dremel tool start carving away inside hatch i x 4 spruce stringer will need drastically cut away Keep carving until hatch fits Turn radio cycle controls Carve hatch until servos move full range hitting hatch cowls built using familiar balloon method Glue up some pine redwood turn down forms wood lathe Make forms about 12 longer cowls rear cowl can cut evenly Once cowls fabricated cut holes engine exhaust needle valve remembering right left Glue cowl supports firewall mount engines fit cowls Finish hooking up motor control cables linkages Use -in pan-head screws hold cowls supports whole model covered iron-on black Mylar film used EconoKote other brands also will nicely front booms landing gear forward sealed polyester resin painted black Pactra Formula U P-6 highly decorated except some white stars much trim add Flying P61 relatively large model small engines must treated respect during takeoff climb-out make easy possible wing has lot incidence nose gear adds nose-up stance intended get model airborne easily Typically taxi out wind hit full throttle let roll until appears light gear slight amount up elevator will cause lift-off Once air.keep shallow angle climb until speed builds up air P-6 relatively fast quite aerobatic does very nice loop will roll easily Don t roll too Continued page 110 30 Model Aviation heavy work done Select light wood center tail booms other sheeted areas save weight wherever can LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW MBSW6 b3ISVV4MASTER IMPROVED THROUGH FOUR YEARS OF PRODUCTION THE G/F SERIES IS UNEQUALED FOR PERFORMANCE & DURABILITY AVAILABLE WORLDWIDE THROUGH 131 DISTRIBUTORS WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 lASTER AIIISCiIIW PRESENTS BALSA STRIPPER 495 AT YOUR DEALER PRECISION STRIP WOOD TO INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 CANTON MODEL PRODUCTS Presents Dip Stick FAST QUICK / EASY TO FINISH D540 55 SPAN 560 SQ IN WING LOADING 165-20 OZ 29-45 ENGINE 43 LENGTH 3 OR 4 CHANNEL PRICE 4995 ADD 4 SHIPPING CHARGE DS 60 641/2 SPAN 672 SQ IN WING LOADING 20-22 OZ 46-60 ENGINE 48 LENGTH 3 OR 4 CHANNEL PRICE 5995 EXTREMELYADD 6 SHIPPING RUGGED TRAINER CHARGE WITH SYMMETRICAL AIRFOIL FOR AEROBATIC FLYING HIGHLY PRE-FABRICATED KIT INCLUDES PRE-SHEETED BALSA FOAM WINGS PRE-BUILT JIG ASSEMBLED WOOD FUSELAGE PRE-SHAPE BALSA TAIL ASSEMBLY PRE-FORMED LANDING GEAR TAIL WHEEL AND AILERON WIRES INSTRUCTION SHEET WITH FULLY ILLUSTRATED ASSEMBLY DRAWINGS tow P ceo Cannot 0 SCOUR Doale s Black Widow/Baker Continued page 30 slowly fixed fuel pick-ups will starve engine slow roll Black Widow dream touch-andgoes Use wide pattern set up long final approach lowest throttle does want lose altitude final approach model assumes rather flat attitude can held right down ground Application full throttle results immediate return air Frequency Scanner/Lange Continued page 39 wish use RC transmitter check accuracy signal generator coupling L6 L5 tuning [5 should checked peak curve amplitude con sistent good oscillator starting have made some sensitivity tests several converters signal generator calibrated output could usually detect 01 RG58/u RG59AJ large wheels landings grass field have no-bounce greasers Singleengine performance excellent allows plenty time set up normal landing approach ailerons sufficient handle singleengine situations rudders very effec tive want use Despite its size small engines P-6 handles like trainer docile has no hidden faults waiting bite goes point Best does great deal realism microvolt signals three microvolt sig nals boomed through loud clear Consid ering RC receivers rated two three microvolts sensitivity thats quite ac ceptable best results obtained using a3- 5-ft extended whip antenna 4 6 meters usually can hear RC fliers transmitter two four miles field over flat terrain car engine turned off Sources Crystals JAN Crystals 2400 Crystal Dr PO Box I12v conte-jr scope vert hor ground generator scope converter aluminum copper sheet bench 110 Model Aviation BANDPASS ALIGNMENT WITH SWEEP GENERATOR AND SCOPE 00 VHF sweep marker gen RF sweep out out tO ORDER SEND BANK CHECK OR MONEY ORDER TO CANTON MODEL PRODUCTS PO BOX 6063 CANTON OHIO 44706 OR CALL 216 4541539 FOR IMMEDIATE COD SHIPMENT
Edition: Model Aviation - 1982/02
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 110
NO OCR TEXT NO OCR TEXT museum surprised small P-6 1 seemed parked next Douglas B-26 seemed much larger air plane P-61 fuselage slightly wider pilots shoulders tail booms rudders also much smaller anticipated perception aircrafts size based entirely photographs Black Widow aircraft naturally lends itself being modeled has large wing long nose relatively long tail moment arm addition has imposing look about have taken few liberties certain fea tures actual P-6 1 sharply tapered Outer wing panels very small ailerons main roll control means spoilers widened wing tips inch used full-span strip ailerons full-size aircraft has large number air scoops oil coolers etc hanging over engine cowls Since Im too lazy carve simply left off Finally P-6 1 rather large wing leading edge air intakes also left off Other discrepancies aircraft true scale Since think 0 S Max 10 FSR jewel engine Black Widow model designed 26 Model Aviation Servo installation tight accessible Nylon guides held ply former silicone sealer Former lifts up aileron servo 09 Max 10 rests its mount Triangles cowl supports Rearview shows siightguii wing used improve prop clearance iotof propeller extends beyond cowling side Elevator cable brought up insidethefin position forthe control horn Rudder cable passes through foam rear boom block arge wing makes model excellent flier Covering black EconoKote painted gray windows TflIs big model two small engines must built tight Author shows off 61 local park gqeFPMOCAUW tAt0 Oil LAtCA 4E.- F VAt BUY 7 uCP 7 NKLAR CABiN CANOPY IS ONLYBALSA BLOCK HATCH REMOVABLEFAIRING N 6 BALSA BLOCK FiBERGLASS COWUNGSI/B X 1/4 SPRUCE RAIL FOAM BLOCK CANOPIES AND TAIL TURRET T REMOVABLE HOLLOW BLOCK1/4 BALSA TURRET SHEET TOP ALL GOLDBERG SM NYLON CLEVISES TOOTH PICK/4 BALSA ELEVATOR1/4 BALSA FIN EGS IF NEEDEDAND STABILIZERAND RUDDERS 1/4 HARDWOOD SID FOAM FAIRINGS 1/4 50 BALSA STRINGERS IN BQMS AND FUSELAGE 3/32 BALSA BOOM SHEETING 1/16 SHEET BALSA TOP-BOlTOM WING CENTER SECTION ONLY 1/4 BALSA AILERON T ESTOCK I/4X 3/B BALSA REAR SPAR EXTEND INTO CENTER SEC 3/32 BALSA GUSSETS STIFFEN TE 11F /4 CDBALSA C C 01/32 PLYWOJO FUSECOWL DOUBLER FIAOFBMOUNiS I1/8 PLYVJOO MAIN SPAR F 11/4 BALSA3/32 SHEET BALSAJOINER AT C/L ThRU 4 BAiS FUSELAGE COVERING I/B MWIRE GEAR SANDWICHED3 1/4 MAIN IN TRIPLED I/B PLYWOOD N 3WHEELS 2 I/2NOSEWHEELON V8M WIRE I/B PLYWOOD MAIN SPAR REINFORCING THRU 5 RIB BAYS OPTIONAL I/B PLYWcOD LEDGE REINFOICING TI-IRU 5 RIB BAYS AT WING BUrr SOLID BALSA TIPS 7 1/16 BALSA WEBS BEHIND SPARS 3/BtX 1/2 BALSA L EDGE STOCK I/B X 1/4 SPRUCE SPARS UPPER AND LOWER BRACE I SERVO PLATEMOTOR CONTRA CAPLE3/B LIt BALSA LEAGPLG CAGE BRACE I/TA SHEET THE BOTTOM Er SHEET CR1 RHYTEWI LE cENTER CE GETER 1IIXIIiiiL OJEGOARD WINO HHTER REHiRED ALL AIWONAL BRACES ARE VA PLC IIII \II ii \III 51Lii I1K J II K vASPt IRE PIT BRACE III I/ -7 CR PLY hAl -_ Al~I} WAWINGASWAjAHTjARAS /1 CIA CEOTICAL ACES BET5132HINGE ALL MRSRGISAlA lAB CR SlEET BOTTOM ONLY3/32 /GUSSEEG- AC GE N GOWN 7 E -ALEHON STASH ElRIA-IAlAl-APIWIVIA SHEET TOE N BOTTOMII ________II 0 N3 RIGHT BOOM GAIT RAW AR GRASS TIREI CS SHETSTABILIZER ELEVI/I SHET OTHINO OSGAIT ROOM OSd COCA CAIASOCLECIS I/I SO STRINGERSRJGOC TYMEAGEC NORTHROP P-61 BLACK WIDOW DEsIERED ORAWIN BY FRANK B BAKER ThAONG er DEMARcOALAEB around result rather large model engine size flies perfectly Due its size biggest enemy weight choose wood carefully sand wood much dare Construction airframe construction straightforward control system plumbers nightmare Once decided put servos fuselage die cast unique solution actuating rudders elevators employed nylon tubing flexible metal cable inside stuff usually used motor control sold bulk Hobby Lobby HLH 805 allowed bend tubing various ways reach desired locations also meant once installed would never seen again end result control system smooth functions per fectly yet can easily adjusted trim purposes side effect need partially build wing booms order route control tubing may seem rather formidable actually goes together logically easily have partitioned construction series stages should help doing right thing right time Build framework two inner wing panels joining tbem center using R plywood dihedral braces paying particular atten tion locating top inboard Sheet whole bottom wing inch top trailing edge Roughly shape lead ing edge wing set assembly aside Cut out ood firewalls drill Kraft KM-IS engine mounts install blind nuts Use pattern provided construct two fuel tanks K-S 254 Easy-Solder tin dream work Before closing up tanks 28 Model Aviation Ply plate provides exit point controi caoies romeo snrougn wing Cable guides must routed carefully avoid slop Wing bOom assembly shows aileron cable routing Note gas pipes FULL-SIZE PLANS AVAILABLE . SEE PAGE 140 ALL WING RIBS ARE 3/32 BALSA 14 REGAINED W-lW-2W-3W-A a---LI W-HW-7W-B 2 BEGS BANG FOWARO VB MUSIC WIRE I/B MUSIC WINE MAIN LANSING SEAR ______________ NOSE NEAR BALSA I/B BALSA N-N N -3 3 BEGS LU CUTOUTN-AN-6 IN CENTtR I3/32 BALSA /8 LITE PLY3/32 BALSA3A6 BALSA F-9ARIBF-OA SBHATCH F-IF-HABALSAIOUVNBALGAFII FA-3/35 BALSA F-3 I/B BULSAF-BF-BF-ISS/ID BALSA F-3BF-A 3/IC BALSA IGREM PLYI I/A BALSABALL HALESI/B I/A FON NONE3/32 LGA GEAR MOUNTI/A GAI/A BALSA3/32 BALSACS-S BALSA SOWELCONTROL CABLE SHEETV4 SHEET3/32 SHEET I/B I/HBLOCKSCKT AT F-B BALSA BLOCK-HATCH */s $-n UNEr -- /ICSS/ IF-lASH F-IlFOAM BLOCK BALSA--L -hISI B B 3 INCINENFE IF-AFHAi=-Th-I3AI II,V. ELEKAlII II F-I1F-3F-H1 O -/II SIIIII II II SIGEBYRBEI I/35PLYSOIWIIII II I1F3B3/35FLOCK OAOI BEOVOYNBE I\- TO F-B IIII F-I IFS/ IIII F-IS 2 ---- IR STRINGER F-S-ZJL5IAO I/B3/35 SHEET 3/35BALSA TRINGERSFANELANE SCES0 5 3 5 H 5/16 BALSA______________ MARE RGHT B LEFT VENTS FACE INBOA USE B N SSSA TIN MEET NORTHROP P-6l BLACK DOW DESIGNED & DRAWN BY FRANK B BAKER TRACING BY OE DEMARCO SHEET 2 install filler vents fuel pickup tube Sure make right left tank filler vents always face inboard fuel pickup location varies depending upon whether right left tank Drill /B-in hole fuel tube 1/16-in hole motor control cable firewall Push fuel tube gas tank through hole firewall roughly align tank back firewall Cut six landing gear mounting plates B Sig Lite Ply Bend main landing gear LB-in music wire Use epoxy assemble right left sandwich landing gear middle layer sure wheel axle faces inboard both assemblies Decide boom will left will right Construct booms mounting tirewallincludingthe tank formerson 4 square stringers Make sure holes control cables inside boom Horizontal vertical lines boom formers will help make straight booms particularly careful make sure firewalls zero degrees both vertically horizontally relative center line booms Check again tank vents wheel axles face inboard Once basic boom constructed sheet lower two-thirds 3/32 balsa will find single 3-in sheet can used nver full length boom Soak sheet balsa water containing some household ammonia will bend shape need Pica Gluit does nice job gluing damp sheets frame work N-5 N-8 cover top one-third tail boom Cut three 36-in lengths nylon control cable tubing string control tubes through holes formers Leave about 3 extending beyond N8 rear Install flexible cable tubing motor control through firewall N-2 Put small amount silicone sealer around-each tube keep slipping Now comes important part Place booms under wing mark rudder elevator control tubes touch top sheeting Cut slots cables can pass through Mark motor control tube enters bottom wing cut hole pass through Now pin booms wings after pulling control cables through holes Check see booms parallel both horizontally vertically process may require some cutting trimming booms get good fit alignment Finally use Robart incidence meter measure wing 3 degrees incidence booms February 1982 29 W-5 N-IBAD r p \ 1 I/A PLYVB BALSA N- N-8 B BALSABALSA OS Max 10 FSHs provide plenty power KraftHayes 15 mounts used Note elevator control cable routing along inside edge vertical f zero degrees correct glue booms bottom wing Route rudder elevator motor control tubes through wing ribs shown plans sharp piece brass tubing small round file can used make holes ribs Make 1/16 plywood cable plate route rudder elevator tubes through glue wing Run flexible metal cables through nylon tubing just make sure turns too tight Remove cables set whole assembly aside Build both outer wing panels install strip ailerons Install nylon tubes aileron control lines leaving enough reach center wing Teed control tubes through holes inner panel wing ribs glue outer panels dihedral braces protruding inboard panels Trim aileron fubes center per plans Feed flexible cable left aileron until about 3 comes out right aileron cut off left aileron about 3 showing Hobby Lobby bulk pack pays off need near full-span continuous length cable Install / 16 plywood servo mounting plate Tack-mount servo using mounting tape Solder Z-shaped 1/16-in music wire coupler flexible cable Check see servo can travel its full range Finish sheeting top booms top inner panels wings sure put 1/16 balsa extends lower wing sheeting outer panels provides place anchor wing covering hard part behind us now fuselage sides have 1/32 plywood doublers front half glued place contact cement Construct fuselage using normal procedures Note servo rails installed servos low front end Install favorite steerable nose wheel gear before sheet belly fuselage Note part fuselage above wing built separately Pin completed fuselage wing check alignment horizontal center line fuselage should match booms may have trim bit get everything aligned Glue fuselage bottom wing part fuselage above wing constructed nexL Build whole upper fuselage unit right wing lower fuselage Mark double former occurs rear hatch separation line tack glue formers ahead line either wing fuselage Glue foam block rear cone fuselage Carve sand whole fuselage shape Use razorsaw cut through rear hatch line forward hatch line pry hatch off used Goldberg cowl clips hold forward hatch did show plans hard install Ill leave hatch hold-down usual method Cut fins rudders Out soft sheet install hinges control arms Note both control arms face inboard Glue rudders booms use some foam blocks fair fins booms Add lower fins Now measure distance between vertical fins went well distance should match plans case cut stabilizer/elevator Out soft 14 sheet balsa measured distance Install hinges control horn glue place sure check stabilizer zero degrees relative center line boom Hnal control hookup Install lower plywood cable support plate fuselage Mount aileron servo have taken out Feed rudder elevator motor control nylon tubes through s plywood upper cable support plate use two screws attach lower plate Use some silicone sealer hold tubes place dry trim tubes about 1z ahead plate Run flexible metal cables through rudder elevator tubes leaving about 2 surface end enough reach F-7 fuselage end Solder threaded brass couplers HLH 809 cables Install nylon Kwik-Links middle threaded part clip control horn Trim away nylon tube until full control movement achieved Install rudder elevator motor servos servo tray mount unit servo rails Pin rudders neutral slip Du-Bro solder links flexible cable clip onto servo arms Trim excess cable solder links place Run both motor control cables through 1/16-in nylon tubes until F-7 reached about 2 protrudes beyond firewall Mount solder link motor control servo feed both cables Cut off excess cable solder link cables aileron end cables install threaded brass couplers have trimmed about l1 both threaded non-threaded ends Put aileron servo neutral trim cables until ailerons neutral everything fits control links snapped control horns solder couplers cables Finally run short piece tubing cable rudder servo nose gear install solder link end sure fasten tubing securely fuselage Install radio battery pack fuselage connect servos Set hatch down fuselage see hits things Use knife Dremel tool start carving away inside hatch i x 4 spruce stringer will need drastically cut away Keep carving until hatch fits Turn radio cycle controls Carve hatch until servos move full range hitting hatch cowls built using familiar balloon method Glue up some pine redwood turn down forms wood lathe Make forms about 12 longer cowls rear cowl can cut evenly Once cowls fabricated cut holes engine exhaust needle valve remembering right left Glue cowl supports firewall mount engines fit cowls Finish hooking up motor control cables linkages Use -in pan-head screws hold cowls supports whole model covered iron-on black Mylar film used EconoKote other brands also will nicely front booms landing gear forward sealed polyester resin painted black Pactra Formula U P-6 highly decorated except some white stars much trim add Flying P61 relatively large model small engines must treated respect during takeoff climb-out make easy possible wing has lot incidence nose gear adds nose-up stance intended get model airborne easily Typically taxi out wind hit full throttle let roll until appears light gear slight amount up elevator will cause lift-off Once air.keep shallow angle climb until speed builds up air P-6 relatively fast quite aerobatic does very nice loop will roll easily Don t roll too Continued page 110 30 Model Aviation heavy work done Select light wood center tail booms other sheeted areas save weight wherever can LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW MBSW6 b3ISVV4MASTER IMPROVED THROUGH FOUR YEARS OF PRODUCTION THE G/F SERIES IS UNEQUALED FOR PERFORMANCE & DURABILITY AVAILABLE WORLDWIDE THROUGH 131 DISTRIBUTORS WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 lASTER AIIISCiIIW PRESENTS BALSA STRIPPER 495 AT YOUR DEALER PRECISION STRIP WOOD TO INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 CANTON MODEL PRODUCTS Presents Dip Stick FAST QUICK / EASY TO FINISH D540 55 SPAN 560 SQ IN WING LOADING 165-20 OZ 29-45 ENGINE 43 LENGTH 3 OR 4 CHANNEL PRICE 4995 ADD 4 SHIPPING CHARGE DS 60 641/2 SPAN 672 SQ IN WING LOADING 20-22 OZ 46-60 ENGINE 48 LENGTH 3 OR 4 CHANNEL PRICE 5995 EXTREMELYADD 6 SHIPPING RUGGED TRAINER CHARGE WITH SYMMETRICAL AIRFOIL FOR AEROBATIC FLYING HIGHLY PRE-FABRICATED KIT INCLUDES PRE-SHEETED BALSA FOAM WINGS PRE-BUILT JIG ASSEMBLED WOOD FUSELAGE PRE-SHAPE BALSA TAIL ASSEMBLY PRE-FORMED LANDING GEAR TAIL WHEEL AND AILERON WIRES INSTRUCTION SHEET WITH FULLY ILLUSTRATED ASSEMBLY DRAWINGS tow P ceo Cannot 0 SCOUR Doale s Black Widow/Baker Continued page 30 slowly fixed fuel pick-ups will starve engine slow roll Black Widow dream touch-andgoes Use wide pattern set up long final approach lowest throttle does want lose altitude final approach model assumes rather flat attitude can held right down ground Application full throttle results immediate return air Frequency Scanner/Lange Continued page 39 wish use RC transmitter check accuracy signal generator coupling L6 L5 tuning [5 should checked peak curve amplitude con sistent good oscillator starting have made some sensitivity tests several converters signal generator calibrated output could usually detect 01 RG58/u RG59AJ large wheels landings grass field have no-bounce greasers Singleengine performance excellent allows plenty time set up normal landing approach ailerons sufficient handle singleengine situations rudders very effec tive want use Despite its size small engines P-6 handles like trainer docile has no hidden faults waiting bite goes point Best does great deal realism microvolt signals three microvolt sig nals boomed through loud clear Consid ering RC receivers rated two three microvolts sensitivity thats quite ac ceptable best results obtained using a3- 5-ft extended whip antenna 4 6 meters usually can hear RC fliers transmitter two four miles field over flat terrain car engine turned off Sources Crystals JAN Crystals 2400 Crystal Dr PO Box I12v conte-jr scope vert hor ground generator scope converter aluminum copper sheet bench 110 Model Aviation BANDPASS ALIGNMENT WITH SWEEP GENERATOR AND SCOPE 00 VHF sweep marker gen RF sweep out out tO ORDER SEND BANK CHECK OR MONEY ORDER TO CANTON MODEL PRODUCTS PO BOX 6063 CANTON OHIO 44706 OR CALL 216 4541539 FOR IMMEDIATE COD SHIPMENT
Edition: Model Aviation - 1982/02
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 110
NO OCR TEXT NO OCR TEXT museum surprised small P-6 1 seemed parked next Douglas B-26 seemed much larger air plane P-61 fuselage slightly wider pilots shoulders tail booms rudders also much smaller anticipated perception aircrafts size based entirely photographs Black Widow aircraft naturally lends itself being modeled has large wing long nose relatively long tail moment arm addition has imposing look about have taken few liberties certain fea tures actual P-6 1 sharply tapered Outer wing panels very small ailerons main roll control means spoilers widened wing tips inch used full-span strip ailerons full-size aircraft has large number air scoops oil coolers etc hanging over engine cowls Since Im too lazy carve simply left off Finally P-6 1 rather large wing leading edge air intakes also left off Other discrepancies aircraft true scale Since think 0 S Max 10 FSR jewel engine Black Widow model designed 26 Model Aviation Servo installation tight accessible Nylon guides held ply former silicone sealer Former lifts up aileron servo 09 Max 10 rests its mount Triangles cowl supports Rearview shows siightguii wing used improve prop clearance iotof propeller extends beyond cowling side Elevator cable brought up insidethefin position forthe control horn Rudder cable passes through foam rear boom block arge wing makes model excellent flier Covering black EconoKote painted gray windows TflIs big model two small engines must built tight Author shows off 61 local park gqeFPMOCAUW tAt0 Oil LAtCA 4E.- F VAt BUY 7 uCP 7 NKLAR CABiN CANOPY IS ONLYBALSA BLOCK HATCH REMOVABLEFAIRING N 6 BALSA BLOCK FiBERGLASS COWUNGSI/B X 1/4 SPRUCE RAIL FOAM BLOCK CANOPIES AND TAIL TURRET T REMOVABLE HOLLOW BLOCK1/4 BALSA TURRET SHEET TOP ALL GOLDBERG SM NYLON CLEVISES TOOTH PICK/4 BALSA ELEVATOR1/4 BALSA FIN EGS IF NEEDEDAND STABILIZERAND RUDDERS 1/4 HARDWOOD SID FOAM FAIRINGS 1/4 50 BALSA STRINGERS IN BQMS AND FUSELAGE 3/32 BALSA BOOM SHEETING 1/16 SHEET BALSA TOP-BOlTOM WING CENTER SECTION ONLY 1/4 BALSA AILERON T ESTOCK I/4X 3/B BALSA REAR SPAR EXTEND INTO CENTER SEC 3/32 BALSA GUSSETS STIFFEN TE 11F /4 CDBALSA C C 01/32 PLYWOJO FUSECOWL DOUBLER FIAOFBMOUNiS I1/8 PLYVJOO MAIN SPAR F 11/4 BALSA3/32 SHEET BALSAJOINER AT C/L ThRU 4 BAiS FUSELAGE COVERING I/B MWIRE GEAR SANDWICHED3 1/4 MAIN IN TRIPLED I/B PLYWOOD N 3WHEELS 2 I/2NOSEWHEELON V8M WIRE I/B PLYWOOD MAIN SPAR REINFORCING THRU 5 RIB BAYS OPTIONAL I/B PLYWcOD LEDGE REINFOICING TI-IRU 5 RIB BAYS AT WING BUrr SOLID BALSA TIPS 7 1/16 BALSA WEBS BEHIND SPARS 3/BtX 1/2 BALSA L EDGE STOCK I/B X 1/4 SPRUCE SPARS UPPER AND LOWER BRACE I SERVO PLATEMOTOR CONTRA CAPLE3/B LIt BALSA LEAGPLG CAGE BRACE I/TA SHEET THE BOTTOM Er SHEET CR1 RHYTEWI LE cENTER CE GETER 1IIXIIiiiL OJEGOARD WINO HHTER REHiRED ALL AIWONAL BRACES ARE VA PLC IIII \II ii \III 51Lii I1K J II K vASPt IRE PIT BRACE III I/ -7 CR PLY hAl -_ Al~I} WAWINGASWAjAHTjARAS /1 CIA CEOTICAL ACES BET5132HINGE ALL MRSRGISAlA lAB CR SlEET BOTTOM ONLY3/32 /GUSSEEG- AC GE N GOWN 7 E -ALEHON STASH ElRIA-IAlAl-APIWIVIA SHEET TOE N BOTTOMII ________II 0 N3 RIGHT BOOM GAIT RAW AR GRASS TIREI CS SHETSTABILIZER ELEVI/I SHET OTHINO OSGAIT ROOM OSd COCA CAIASOCLECIS I/I SO STRINGERSRJGOC TYMEAGEC NORTHROP P-61 BLACK WIDOW DEsIERED ORAWIN BY FRANK B BAKER ThAONG er DEMARcOALAEB around result rather large model engine size flies perfectly Due its size biggest enemy weight choose wood carefully sand wood much dare Construction airframe construction straightforward control system plumbers nightmare Once decided put servos fuselage die cast unique solution actuating rudders elevators employed nylon tubing flexible metal cable inside stuff usually used motor control sold bulk Hobby Lobby HLH 805 allowed bend tubing various ways reach desired locations also meant once installed would never seen again end result control system smooth functions per fectly yet can easily adjusted trim purposes side effect need partially build wing booms order route control tubing may seem rather formidable actually goes together logically easily have partitioned construction series stages should help doing right thing right time Build framework two inner wing panels joining tbem center using R plywood dihedral braces paying particular atten tion locating top inboard Sheet whole bottom wing inch top trailing edge Roughly shape lead ing edge wing set assembly aside Cut out ood firewalls drill Kraft KM-IS engine mounts install blind nuts Use pattern provided construct two fuel tanks K-S 254 Easy-Solder tin dream work Before closing up tanks 28 Model Aviation Ply plate provides exit point controi caoies romeo snrougn wing Cable guides must routed carefully avoid slop Wing bOom assembly shows aileron cable routing Note gas pipes FULL-SIZE PLANS AVAILABLE . SEE PAGE 140 ALL WING RIBS ARE 3/32 BALSA 14 REGAINED W-lW-2W-3W-A a---LI W-HW-7W-B 2 BEGS BANG FOWARO VB MUSIC WIRE I/B MUSIC WINE MAIN LANSING SEAR ______________ NOSE NEAR BALSA I/B BALSA N-N N -3 3 BEGS LU CUTOUTN-AN-6 IN CENTtR I3/32 BALSA /8 LITE PLY3/32 BALSA3A6 BALSA F-9ARIBF-OA SBHATCH F-IF-HABALSAIOUVNBALGAFII FA-3/35 BALSA F-3 I/B BULSAF-BF-BF-ISS/ID BALSA F-3BF-A 3/IC BALSA IGREM PLYI I/A BALSABALL HALESI/B I/A FON NONE3/32 LGA GEAR MOUNTI/A GAI/A BALSA3/32 BALSACS-S BALSA SOWELCONTROL CABLE SHEETV4 SHEET3/32 SHEET I/B I/HBLOCKSCKT AT F-B BALSA BLOCK-HATCH */s $-n UNEr -- /ICSS/ IF-lASH F-IlFOAM BLOCK BALSA--L -hISI B B 3 INCINENFE IF-AFHAi=-Th-I3AI II,V. ELEKAlII II F-I1F-3F-H1 O -/II SIIIII II II SIGEBYRBEI I/35PLYSOIWIIII II I1F3B3/35FLOCK OAOI BEOVOYNBE I\- TO F-B IIII F-I IFS/ IIII F-IS 2 ---- IR STRINGER F-S-ZJL5IAO I/B3/35 SHEET 3/35BALSA TRINGERSFANELANE SCES0 5 3 5 H 5/16 BALSA______________ MARE RGHT B LEFT VENTS FACE INBOA USE B N SSSA TIN MEET NORTHROP P-6l BLACK DOW DESIGNED & DRAWN BY FRANK B BAKER TRACING BY OE DEMARCO SHEET 2 install filler vents fuel pickup tube Sure make right left tank filler vents always face inboard fuel pickup location varies depending upon whether right left tank Drill /B-in hole fuel tube 1/16-in hole motor control cable firewall Push fuel tube gas tank through hole firewall roughly align tank back firewall Cut six landing gear mounting plates B Sig Lite Ply Bend main landing gear LB-in music wire Use epoxy assemble right left sandwich landing gear middle layer sure wheel axle faces inboard both assemblies Decide boom will left will right Construct booms mounting tirewallincludingthe tank formerson 4 square stringers Make sure holes control cables inside boom Horizontal vertical lines boom formers will help make straight booms particularly careful make sure firewalls zero degrees both vertically horizontally relative center line booms Check again tank vents wheel axles face inboard Once basic boom constructed sheet lower two-thirds 3/32 balsa will find single 3-in sheet can used nver full length boom Soak sheet balsa water containing some household ammonia will bend shape need Pica Gluit does nice job gluing damp sheets frame work N-5 N-8 cover top one-third tail boom Cut three 36-in lengths nylon control cable tubing string control tubes through holes formers Leave about 3 extending beyond N8 rear Install flexible cable tubing motor control through firewall N-2 Put small amount silicone sealer around-each tube keep slipping Now comes important part Place booms under wing mark rudder elevator control tubes touch top sheeting Cut slots cables can pass through Mark motor control tube enters bottom wing cut hole pass through Now pin booms wings after pulling control cables through holes Check see booms parallel both horizontally vertically process may require some cutting trimming booms get good fit alignment Finally use Robart incidence meter measure wing 3 degrees incidence booms February 1982 29 W-5 N-IBAD r p \ 1 I/A PLYVB BALSA N- N-8 B BALSABALSA OS Max 10 FSHs provide plenty power KraftHayes 15 mounts used Note elevator control cable routing along inside edge vertical f zero degrees correct glue booms bottom wing Route rudder elevator motor control tubes through wing ribs shown plans sharp piece brass tubing small round file can used make holes ribs Make 1/16 plywood cable plate route rudder elevator tubes through glue wing Run flexible metal cables through nylon tubing just make sure turns too tight Remove cables set whole assembly aside Build both outer wing panels install strip ailerons Install nylon tubes aileron control lines leaving enough reach center wing Teed control tubes through holes inner panel wing ribs glue outer panels dihedral braces protruding inboard panels Trim aileron fubes center per plans Feed flexible cable left aileron until about 3 comes out right aileron cut off left aileron about 3 showing Hobby Lobby bulk pack pays off need near full-span continuous length cable Install / 16 plywood servo mounting plate Tack-mount servo using mounting tape Solder Z-shaped 1/16-in music wire coupler flexible cable Check see servo can travel its full range Finish sheeting top booms top inner panels wings sure put 1/16 balsa extends lower wing sheeting outer panels provides place anchor wing covering hard part behind us now fuselage sides have 1/32 plywood doublers front half glued place contact cement Construct fuselage using normal procedures Note servo rails installed servos low front end Install favorite steerable nose wheel gear before sheet belly fuselage Note part fuselage above wing built separately Pin completed fuselage wing check alignment horizontal center line fuselage should match booms may have trim bit get everything aligned Glue fuselage bottom wing part fuselage above wing constructed nexL Build whole upper fuselage unit right wing lower fuselage Mark double former occurs rear hatch separation line tack glue formers ahead line either wing fuselage Glue foam block rear cone fuselage Carve sand whole fuselage shape Use razorsaw cut through rear hatch line forward hatch line pry hatch off used Goldberg cowl clips hold forward hatch did show plans hard install Ill leave hatch hold-down usual method Cut fins rudders Out soft sheet install hinges control arms Note both control arms face inboard Glue rudders booms use some foam blocks fair fins booms Add lower fins Now measure distance between vertical fins went well distance should match plans case cut stabilizer/elevator Out soft 14 sheet balsa measured distance Install hinges control horn glue place sure check stabilizer zero degrees relative center line boom Hnal control hookup Install lower plywood cable support plate fuselage Mount aileron servo have taken out Feed rudder elevator motor control nylon tubes through s plywood upper cable support plate use two screws attach lower plate Use some silicone sealer hold tubes place dry trim tubes about 1z ahead plate Run flexible metal cables through rudder elevator tubes leaving about 2 surface end enough reach F-7 fuselage end Solder threaded brass couplers HLH 809 cables Install nylon Kwik-Links middle threaded part clip control horn Trim away nylon tube until full control movement achieved Install rudder elevator motor servos servo tray mount unit servo rails Pin rudders neutral slip Du-Bro solder links flexible cable clip onto servo arms Trim excess cable solder links place Run both motor control cables through 1/16-in nylon tubes until F-7 reached about 2 protrudes beyond firewall Mount solder link motor control servo feed both cables Cut off excess cable solder link cables aileron end cables install threaded brass couplers have trimmed about l1 both threaded non-threaded ends Put aileron servo neutral trim cables until ailerons neutral everything fits control links snapped control horns solder couplers cables Finally run short piece tubing cable rudder servo nose gear install solder link end sure fasten tubing securely fuselage Install radio battery pack fuselage connect servos Set hatch down fuselage see hits things Use knife Dremel tool start carving away inside hatch i x 4 spruce stringer will need drastically cut away Keep carving until hatch fits Turn radio cycle controls Carve hatch until servos move full range hitting hatch cowls built using familiar balloon method Glue up some pine redwood turn down forms wood lathe Make forms about 12 longer cowls rear cowl can cut evenly Once cowls fabricated cut holes engine exhaust needle valve remembering right left Glue cowl supports firewall mount engines fit cowls Finish hooking up motor control cables linkages Use -in pan-head screws hold cowls supports whole model covered iron-on black Mylar film used EconoKote other brands also will nicely front booms landing gear forward sealed polyester resin painted black Pactra Formula U P-6 highly decorated except some white stars much trim add Flying P61 relatively large model small engines must treated respect during takeoff climb-out make easy possible wing has lot incidence nose gear adds nose-up stance intended get model airborne easily Typically taxi out wind hit full throttle let roll until appears light gear slight amount up elevator will cause lift-off Once air.keep shallow angle climb until speed builds up air P-6 relatively fast quite aerobatic does very nice loop will roll easily Don t roll too Continued page 110 30 Model Aviation heavy work done Select light wood center tail booms other sheeted areas save weight wherever can LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW MBSW6 b3ISVV4MASTER IMPROVED THROUGH FOUR YEARS OF PRODUCTION THE G/F SERIES IS UNEQUALED FOR PERFORMANCE & DURABILITY AVAILABLE WORLDWIDE THROUGH 131 DISTRIBUTORS WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 lASTER AIIISCiIIW PRESENTS BALSA STRIPPER 495 AT YOUR DEALER PRECISION STRIP WOOD TO INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 CANTON MODEL PRODUCTS Presents Dip Stick FAST QUICK / EASY TO FINISH D540 55 SPAN 560 SQ IN WING LOADING 165-20 OZ 29-45 ENGINE 43 LENGTH 3 OR 4 CHANNEL PRICE 4995 ADD 4 SHIPPING CHARGE DS 60 641/2 SPAN 672 SQ IN WING LOADING 20-22 OZ 46-60 ENGINE 48 LENGTH 3 OR 4 CHANNEL PRICE 5995 EXTREMELYADD 6 SHIPPING RUGGED TRAINER CHARGE WITH SYMMETRICAL AIRFOIL FOR AEROBATIC FLYING HIGHLY PRE-FABRICATED KIT INCLUDES PRE-SHEETED BALSA FOAM WINGS PRE-BUILT JIG ASSEMBLED WOOD FUSELAGE PRE-SHAPE BALSA TAIL ASSEMBLY PRE-FORMED LANDING GEAR TAIL WHEEL AND AILERON WIRES INSTRUCTION SHEET WITH FULLY ILLUSTRATED ASSEMBLY DRAWINGS tow P ceo Cannot 0 SCOUR Doale s Black Widow/Baker Continued page 30 slowly fixed fuel pick-ups will starve engine slow roll Black Widow dream touch-andgoes Use wide pattern set up long final approach lowest throttle does want lose altitude final approach model assumes rather flat attitude can held right down ground Application full throttle results immediate return air Frequency Scanner/Lange Continued page 39 wish use RC transmitter check accuracy signal generator coupling L6 L5 tuning [5 should checked peak curve amplitude con sistent good oscillator starting have made some sensitivity tests several converters signal generator calibrated output could usually detect 01 RG58/u RG59AJ large wheels landings grass field have no-bounce greasers Singleengine performance excellent allows plenty time set up normal landing approach ailerons sufficient handle singleengine situations rudders very effec tive want use Despite its size small engines P-6 handles like trainer docile has no hidden faults waiting bite goes point Best does great deal realism microvolt signals three microvolt sig nals boomed through loud clear Consid ering RC receivers rated two three microvolts sensitivity thats quite ac ceptable best results obtained using a3- 5-ft extended whip antenna 4 6 meters usually can hear RC fliers transmitter two four miles field over flat terrain car engine turned off Sources Crystals JAN Crystals 2400 Crystal Dr PO Box I12v conte-jr scope vert hor ground generator scope converter aluminum copper sheet bench 110 Model Aviation BANDPASS ALIGNMENT WITH SWEEP GENERATOR AND SCOPE 00 VHF sweep marker gen RF sweep out out tO ORDER SEND BANK CHECK OR MONEY ORDER TO CANTON MODEL PRODUCTS PO BOX 6063 CANTON OHIO 44706 OR CALL 216 4541539 FOR IMMEDIATE COD SHIPMENT
Edition: Model Aviation - 1982/02
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 110
NO OCR TEXT NO OCR TEXT museum surprised small P-6 1 seemed parked next Douglas B-26 seemed much larger air plane P-61 fuselage slightly wider pilots shoulders tail booms rudders also much smaller anticipated perception aircrafts size based entirely photographs Black Widow aircraft naturally lends itself being modeled has large wing long nose relatively long tail moment arm addition has imposing look about have taken few liberties certain fea tures actual P-6 1 sharply tapered Outer wing panels very small ailerons main roll control means spoilers widened wing tips inch used full-span strip ailerons full-size aircraft has large number air scoops oil coolers etc hanging over engine cowls Since Im too lazy carve simply left off Finally P-6 1 rather large wing leading edge air intakes also left off Other discrepancies aircraft true scale Since think 0 S Max 10 FSR jewel engine Black Widow model designed 26 Model Aviation Servo installation tight accessible Nylon guides held ply former silicone sealer Former lifts up aileron servo 09 Max 10 rests its mount Triangles cowl supports Rearview shows siightguii wing used improve prop clearance iotof propeller extends beyond cowling side Elevator cable brought up insidethefin position forthe control horn Rudder cable passes through foam rear boom block arge wing makes model excellent flier Covering black EconoKote painted gray windows TflIs big model two small engines must built tight Author shows off 61 local park gqeFPMOCAUW tAt0 Oil LAtCA 4E.- F VAt BUY 7 uCP 7 NKLAR CABiN CANOPY IS ONLYBALSA BLOCK HATCH REMOVABLEFAIRING N 6 BALSA BLOCK FiBERGLASS COWUNGSI/B X 1/4 SPRUCE RAIL FOAM BLOCK CANOPIES AND TAIL TURRET T REMOVABLE HOLLOW BLOCK1/4 BALSA TURRET SHEET TOP ALL GOLDBERG SM NYLON CLEVISES TOOTH PICK/4 BALSA ELEVATOR1/4 BALSA FIN EGS IF NEEDEDAND STABILIZERAND RUDDERS 1/4 HARDWOOD SID FOAM FAIRINGS 1/4 50 BALSA STRINGERS IN BQMS AND FUSELAGE 3/32 BALSA BOOM SHEETING 1/16 SHEET BALSA TOP-BOlTOM WING CENTER SECTION ONLY 1/4 BALSA AILERON T ESTOCK I/4X 3/B BALSA REAR SPAR EXTEND INTO CENTER SEC 3/32 BALSA GUSSETS STIFFEN TE 11F /4 CDBALSA C C 01/32 PLYWOJO FUSECOWL DOUBLER FIAOFBMOUNiS I1/8 PLYVJOO MAIN SPAR F 11/4 BALSA3/32 SHEET BALSAJOINER AT C/L ThRU 4 BAiS FUSELAGE COVERING I/B MWIRE GEAR SANDWICHED3 1/4 MAIN IN TRIPLED I/B PLYWOOD N 3WHEELS 2 I/2NOSEWHEELON V8M WIRE I/B PLYWOOD MAIN SPAR REINFORCING THRU 5 RIB BAYS OPTIONAL I/B PLYWcOD LEDGE REINFOICING TI-IRU 5 RIB BAYS AT WING BUrr SOLID BALSA TIPS 7 1/16 BALSA WEBS BEHIND SPARS 3/BtX 1/2 BALSA L EDGE STOCK I/B X 1/4 SPRUCE SPARS UPPER AND LOWER BRACE I SERVO PLATEMOTOR CONTRA CAPLE3/B LIt BALSA LEAGPLG CAGE BRACE I/TA SHEET THE BOTTOM Er SHEET CR1 RHYTEWI LE cENTER CE GETER 1IIXIIiiiL OJEGOARD WINO HHTER REHiRED ALL AIWONAL BRACES ARE VA PLC IIII \II ii \III 51Lii I1K J II K vASPt IRE PIT BRACE III I/ -7 CR PLY hAl -_ Al~I} WAWINGASWAjAHTjARAS /1 CIA CEOTICAL ACES BET5132HINGE ALL MRSRGISAlA lAB CR SlEET BOTTOM ONLY3/32 /GUSSEEG- AC GE N GOWN 7 E -ALEHON STASH ElRIA-IAlAl-APIWIVIA SHEET TOE N BOTTOMII ________II 0 N3 RIGHT BOOM GAIT RAW AR GRASS TIREI CS SHETSTABILIZER ELEVI/I SHET OTHINO OSGAIT ROOM OSd COCA CAIASOCLECIS I/I SO STRINGERSRJGOC TYMEAGEC NORTHROP P-61 BLACK WIDOW DEsIERED ORAWIN BY FRANK B BAKER ThAONG er DEMARcOALAEB around result rather large model engine size flies perfectly Due its size biggest enemy weight choose wood carefully sand wood much dare Construction airframe construction straightforward control system plumbers nightmare Once decided put servos fuselage die cast unique solution actuating rudders elevators employed nylon tubing flexible metal cable inside stuff usually used motor control sold bulk Hobby Lobby HLH 805 allowed bend tubing various ways reach desired locations also meant once installed would never seen again end result control system smooth functions per fectly yet can easily adjusted trim purposes side effect need partially build wing booms order route control tubing may seem rather formidable actually goes together logically easily have partitioned construction series stages should help doing right thing right time Build framework two inner wing panels joining tbem center using R plywood dihedral braces paying particular atten tion locating top inboard Sheet whole bottom wing inch top trailing edge Roughly shape lead ing edge wing set assembly aside Cut out ood firewalls drill Kraft KM-IS engine mounts install blind nuts Use pattern provided construct two fuel tanks K-S 254 Easy-Solder tin dream work Before closing up tanks 28 Model Aviation Ply plate provides exit point controi caoies romeo snrougn wing Cable guides must routed carefully avoid slop Wing bOom assembly shows aileron cable routing Note gas pipes FULL-SIZE PLANS AVAILABLE . SEE PAGE 140 ALL WING RIBS ARE 3/32 BALSA 14 REGAINED W-lW-2W-3W-A a---LI W-HW-7W-B 2 BEGS BANG FOWARO VB MUSIC WIRE I/B MUSIC WINE MAIN LANSING SEAR ______________ NOSE NEAR BALSA I/B BALSA N-N N -3 3 BEGS LU CUTOUTN-AN-6 IN CENTtR I3/32 BALSA /8 LITE PLY3/32 BALSA3A6 BALSA F-9ARIBF-OA SBHATCH F-IF-HABALSAIOUVNBALGAFII FA-3/35 BALSA F-3 I/B BULSAF-BF-BF-ISS/ID BALSA F-3BF-A 3/IC BALSA IGREM PLYI I/A BALSABALL HALESI/B I/A FON NONE3/32 LGA GEAR MOUNTI/A GAI/A BALSA3/32 BALSACS-S BALSA SOWELCONTROL CABLE SHEETV4 SHEET3/32 SHEET I/B I/HBLOCKSCKT AT F-B BALSA BLOCK-HATCH */s $-n UNEr -- /ICSS/ IF-lASH F-IlFOAM BLOCK BALSA--L -hISI B B 3 INCINENFE IF-AFHAi=-Th-I3AI II,V. ELEKAlII II F-I1F-3F-H1 O -/II SIIIII II II SIGEBYRBEI I/35PLYSOIWIIII II I1F3B3/35FLOCK OAOI BEOVOYNBE I\- TO F-B IIII F-I IFS/ IIII F-IS 2 ---- IR STRINGER F-S-ZJL5IAO I/B3/35 SHEET 3/35BALSA TRINGERSFANELANE SCES0 5 3 5 H 5/16 BALSA______________ MARE RGHT B LEFT VENTS FACE INBOA USE B N SSSA TIN MEET NORTHROP P-6l BLACK DOW DESIGNED & DRAWN BY FRANK B BAKER TRACING BY OE DEMARCO SHEET 2 install filler vents fuel pickup tube Sure make right left tank filler vents always face inboard fuel pickup location varies depending upon whether right left tank Drill /B-in hole fuel tube 1/16-in hole motor control cable firewall Push fuel tube gas tank through hole firewall roughly align tank back firewall Cut six landing gear mounting plates B Sig Lite Ply Bend main landing gear LB-in music wire Use epoxy assemble right left sandwich landing gear middle layer sure wheel axle faces inboard both assemblies Decide boom will left will right Construct booms mounting tirewallincludingthe tank formerson 4 square stringers Make sure holes control cables inside boom Horizontal vertical lines boom formers will help make straight booms particularly careful make sure firewalls zero degrees both vertically horizontally relative center line booms Check again tank vents wheel axles face inboard Once basic boom constructed sheet lower two-thirds 3/32 balsa will find single 3-in sheet can used nver full length boom Soak sheet balsa water containing some household ammonia will bend shape need Pica Gluit does nice job gluing damp sheets frame work N-5 N-8 cover top one-third tail boom Cut three 36-in lengths nylon control cable tubing string control tubes through holes formers Leave about 3 extending beyond N8 rear Install flexible cable tubing motor control through firewall N-2 Put small amount silicone sealer around-each tube keep slipping Now comes important part Place booms under wing mark rudder elevator control tubes touch top sheeting Cut slots cables can pass through Mark motor control tube enters bottom wing cut hole pass through Now pin booms wings after pulling control cables through holes Check see booms parallel both horizontally vertically process may require some cutting trimming booms get good fit alignment Finally use Robart incidence meter measure wing 3 degrees incidence booms February 1982 29 W-5 N-IBAD r p \ 1 I/A PLYVB BALSA N- N-8 B BALSABALSA OS Max 10 FSHs provide plenty power KraftHayes 15 mounts used Note elevator control cable routing along inside edge vertical f zero degrees correct glue booms bottom wing Route rudder elevator motor control tubes through wing ribs shown plans sharp piece brass tubing small round file can used make holes ribs Make 1/16 plywood cable plate route rudder elevator tubes through glue wing Run flexible metal cables through nylon tubing just make sure turns too tight Remove cables set whole assembly aside Build both outer wing panels install strip ailerons Install nylon tubes aileron control lines leaving enough reach center wing Teed control tubes through holes inner panel wing ribs glue outer panels dihedral braces protruding inboard panels Trim aileron fubes center per plans Feed flexible cable left aileron until about 3 comes out right aileron cut off left aileron about 3 showing Hobby Lobby bulk pack pays off need near full-span continuous length cable Install / 16 plywood servo mounting plate Tack-mount servo using mounting tape Solder Z-shaped 1/16-in music wire coupler flexible cable Check see servo can travel its full range Finish sheeting top booms top inner panels wings sure put 1/16 balsa extends lower wing sheeting outer panels provides place anchor wing covering hard part behind us now fuselage sides have 1/32 plywood doublers front half glued place contact cement Construct fuselage using normal procedures Note servo rails installed servos low front end Install favorite steerable nose wheel gear before sheet belly fuselage Note part fuselage above wing built separately Pin completed fuselage wing check alignment horizontal center line fuselage should match booms may have trim bit get everything aligned Glue fuselage bottom wing part fuselage above wing constructed nexL Build whole upper fuselage unit right wing lower fuselage Mark double former occurs rear hatch separation line tack glue formers ahead line either wing fuselage Glue foam block rear cone fuselage Carve sand whole fuselage shape Use razorsaw cut through rear hatch line forward hatch line pry hatch off used Goldberg cowl clips hold forward hatch did show plans hard install Ill leave hatch hold-down usual method Cut fins rudders Out soft sheet install hinges control arms Note both control arms face inboard Glue rudders booms use some foam blocks fair fins booms Add lower fins Now measure distance between vertical fins went well distance should match plans case cut stabilizer/elevator Out soft 14 sheet balsa measured distance Install hinges control horn glue place sure check stabilizer zero degrees relative center line boom Hnal control hookup Install lower plywood cable support plate fuselage Mount aileron servo have taken out Feed rudder elevator motor control nylon tubes through s plywood upper cable support plate use two screws attach lower plate Use some silicone sealer hold tubes place dry trim tubes about 1z ahead plate Run flexible metal cables through rudder elevator tubes leaving about 2 surface end enough reach F-7 fuselage end Solder threaded brass couplers HLH 809 cables Install nylon Kwik-Links middle threaded part clip control horn Trim away nylon tube until full control movement achieved Install rudder elevator motor servos servo tray mount unit servo rails Pin rudders neutral slip Du-Bro solder links flexible cable clip onto servo arms Trim excess cable solder links place Run both motor control cables through 1/16-in nylon tubes until F-7 reached about 2 protrudes beyond firewall Mount solder link motor control servo feed both cables Cut off excess cable solder link cables aileron end cables install threaded brass couplers have trimmed about l1 both threaded non-threaded ends Put aileron servo neutral trim cables until ailerons neutral everything fits control links snapped control horns solder couplers cables Finally run short piece tubing cable rudder servo nose gear install solder link end sure fasten tubing securely fuselage Install radio battery pack fuselage connect servos Set hatch down fuselage see hits things Use knife Dremel tool start carving away inside hatch i x 4 spruce stringer will need drastically cut away Keep carving until hatch fits Turn radio cycle controls Carve hatch until servos move full range hitting hatch cowls built using familiar balloon method Glue up some pine redwood turn down forms wood lathe Make forms about 12 longer cowls rear cowl can cut evenly Once cowls fabricated cut holes engine exhaust needle valve remembering right left Glue cowl supports firewall mount engines fit cowls Finish hooking up motor control cables linkages Use -in pan-head screws hold cowls supports whole model covered iron-on black Mylar film used EconoKote other brands also will nicely front booms landing gear forward sealed polyester resin painted black Pactra Formula U P-6 highly decorated except some white stars much trim add Flying P61 relatively large model small engines must treated respect during takeoff climb-out make easy possible wing has lot incidence nose gear adds nose-up stance intended get model airborne easily Typically taxi out wind hit full throttle let roll until appears light gear slight amount up elevator will cause lift-off Once air.keep shallow angle climb until speed builds up air P-6 relatively fast quite aerobatic does very nice loop will roll easily Don t roll too Continued page 110 30 Model Aviation heavy work done Select light wood center tail booms other sheeted areas save weight wherever can LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW MBSW6 b3ISVV4MASTER IMPROVED THROUGH FOUR YEARS OF PRODUCTION THE G/F SERIES IS UNEQUALED FOR PERFORMANCE & DURABILITY AVAILABLE WORLDWIDE THROUGH 131 DISTRIBUTORS WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 lASTER AIIISCiIIW PRESENTS BALSA STRIPPER 495 AT YOUR DEALER PRECISION STRIP WOOD TO INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 CANTON MODEL PRODUCTS Presents Dip Stick FAST QUICK / EASY TO FINISH D540 55 SPAN 560 SQ IN WING LOADING 165-20 OZ 29-45 ENGINE 43 LENGTH 3 OR 4 CHANNEL PRICE 4995 ADD 4 SHIPPING CHARGE DS 60 641/2 SPAN 672 SQ IN WING LOADING 20-22 OZ 46-60 ENGINE 48 LENGTH 3 OR 4 CHANNEL PRICE 5995 EXTREMELYADD 6 SHIPPING RUGGED TRAINER CHARGE WITH SYMMETRICAL AIRFOIL FOR AEROBATIC FLYING HIGHLY PRE-FABRICATED KIT INCLUDES PRE-SHEETED BALSA FOAM WINGS PRE-BUILT JIG ASSEMBLED WOOD FUSELAGE PRE-SHAPE BALSA TAIL ASSEMBLY PRE-FORMED LANDING GEAR TAIL WHEEL AND AILERON WIRES INSTRUCTION SHEET WITH FULLY ILLUSTRATED ASSEMBLY DRAWINGS tow P ceo Cannot 0 SCOUR Doale s Black Widow/Baker Continued page 30 slowly fixed fuel pick-ups will starve engine slow roll Black Widow dream touch-andgoes Use wide pattern set up long final approach lowest throttle does want lose altitude final approach model assumes rather flat attitude can held right down ground Application full throttle results immediate return air Frequency Scanner/Lange Continued page 39 wish use RC transmitter check accuracy signal generator coupling L6 L5 tuning [5 should checked peak curve amplitude con sistent good oscillator starting have made some sensitivity tests several converters signal generator calibrated output could usually detect 01 RG58/u RG59AJ large wheels landings grass field have no-bounce greasers Singleengine performance excellent allows plenty time set up normal landing approach ailerons sufficient handle singleengine situations rudders very effec tive want use Despite its size small engines P-6 handles like trainer docile has no hidden faults waiting bite goes point Best does great deal realism microvolt signals three microvolt sig nals boomed through loud clear Consid ering RC receivers rated two three microvolts sensitivity thats quite ac ceptable best results obtained using a3- 5-ft extended whip antenna 4 6 meters usually can hear RC fliers transmitter two four miles field over flat terrain car engine turned off Sources Crystals JAN Crystals 2400 Crystal Dr PO Box I12v conte-jr scope vert hor ground generator scope converter aluminum copper sheet bench 110 Model Aviation BANDPASS ALIGNMENT WITH SWEEP GENERATOR AND SCOPE 00 VHF sweep marker gen RF sweep out out tO ORDER SEND BANK CHECK OR MONEY ORDER TO CANTON MODEL PRODUCTS PO BOX 6063 CANTON OHIO 44706 OR CALL 216 4541539 FOR IMMEDIATE COD SHIPMENT
Edition: Model Aviation - 1982/02
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 110
NO OCR TEXT NO OCR TEXT museum surprised small P-6 1 seemed parked next Douglas B-26 seemed much larger air plane P-61 fuselage slightly wider pilots shoulders tail booms rudders also much smaller anticipated perception aircrafts size based entirely photographs Black Widow aircraft naturally lends itself being modeled has large wing long nose relatively long tail moment arm addition has imposing look about have taken few liberties certain fea tures actual P-6 1 sharply tapered Outer wing panels very small ailerons main roll control means spoilers widened wing tips inch used full-span strip ailerons full-size aircraft has large number air scoops oil coolers etc hanging over engine cowls Since Im too lazy carve simply left off Finally P-6 1 rather large wing leading edge air intakes also left off Other discrepancies aircraft true scale Since think 0 S Max 10 FSR jewel engine Black Widow model designed 26 Model Aviation Servo installation tight accessible Nylon guides held ply former silicone sealer Former lifts up aileron servo 09 Max 10 rests its mount Triangles cowl supports Rearview shows siightguii wing used improve prop clearance iotof propeller extends beyond cowling side Elevator cable brought up insidethefin position forthe control horn Rudder cable passes through foam rear boom block arge wing makes model excellent flier Covering black EconoKote painted gray windows TflIs big model two small engines must built tight Author shows off 61 local park gqeFPMOCAUW tAt0 Oil LAtCA 4E.- F VAt BUY 7 uCP 7 NKLAR CABiN CANOPY IS ONLYBALSA BLOCK HATCH REMOVABLEFAIRING N 6 BALSA BLOCK FiBERGLASS COWUNGSI/B X 1/4 SPRUCE RAIL FOAM BLOCK CANOPIES AND TAIL TURRET T REMOVABLE HOLLOW BLOCK1/4 BALSA TURRET SHEET TOP ALL GOLDBERG SM NYLON CLEVISES TOOTH PICK/4 BALSA ELEVATOR1/4 BALSA FIN EGS IF NEEDEDAND STABILIZERAND RUDDERS 1/4 HARDWOOD SID FOAM FAIRINGS 1/4 50 BALSA STRINGERS IN BQMS AND FUSELAGE 3/32 BALSA BOOM SHEETING 1/16 SHEET BALSA TOP-BOlTOM WING CENTER SECTION ONLY 1/4 BALSA AILERON T ESTOCK I/4X 3/B BALSA REAR SPAR EXTEND INTO CENTER SEC 3/32 BALSA GUSSETS STIFFEN TE 11F /4 CDBALSA C C 01/32 PLYWOJO FUSECOWL DOUBLER FIAOFBMOUNiS I1/8 PLYVJOO MAIN SPAR F 11/4 BALSA3/32 SHEET BALSAJOINER AT C/L ThRU 4 BAiS FUSELAGE COVERING I/B MWIRE GEAR SANDWICHED3 1/4 MAIN IN TRIPLED I/B PLYWOOD N 3WHEELS 2 I/2NOSEWHEELON V8M WIRE I/B PLYWOOD MAIN SPAR REINFORCING THRU 5 RIB BAYS OPTIONAL I/B PLYWcOD LEDGE REINFOICING TI-IRU 5 RIB BAYS AT WING BUrr SOLID BALSA TIPS 7 1/16 BALSA WEBS BEHIND SPARS 3/BtX 1/2 BALSA L EDGE STOCK I/B X 1/4 SPRUCE SPARS UPPER AND LOWER BRACE I SERVO PLATEMOTOR CONTRA CAPLE3/B LIt BALSA LEAGPLG CAGE BRACE I/TA SHEET THE BOTTOM Er SHEET CR1 RHYTEWI LE cENTER CE GETER 1IIXIIiiiL OJEGOARD WINO HHTER REHiRED ALL AIWONAL BRACES ARE VA PLC IIII \II ii \III 51Lii I1K J II K vASPt IRE PIT BRACE III I/ -7 CR PLY hAl -_ Al~I} WAWINGASWAjAHTjARAS /1 CIA CEOTICAL ACES BET5132HINGE ALL MRSRGISAlA lAB CR SlEET BOTTOM ONLY3/32 /GUSSEEG- AC GE N GOWN 7 E -ALEHON STASH ElRIA-IAlAl-APIWIVIA SHEET TOE N BOTTOMII ________II 0 N3 RIGHT BOOM GAIT RAW AR GRASS TIREI CS SHETSTABILIZER ELEVI/I SHET OTHINO OSGAIT ROOM OSd COCA CAIASOCLECIS I/I SO STRINGERSRJGOC TYMEAGEC NORTHROP P-61 BLACK WIDOW DEsIERED ORAWIN BY FRANK B BAKER ThAONG er DEMARcOALAEB around result rather large model engine size flies perfectly Due its size biggest enemy weight choose wood carefully sand wood much dare Construction airframe construction straightforward control system plumbers nightmare Once decided put servos fuselage die cast unique solution actuating rudders elevators employed nylon tubing flexible metal cable inside stuff usually used motor control sold bulk Hobby Lobby HLH 805 allowed bend tubing various ways reach desired locations also meant once installed would never seen again end result control system smooth functions per fectly yet can easily adjusted trim purposes side effect need partially build wing booms order route control tubing may seem rather formidable actually goes together logically easily have partitioned construction series stages should help doing right thing right time Build framework two inner wing panels joining tbem center using R plywood dihedral braces paying particular atten tion locating top inboard Sheet whole bottom wing inch top trailing edge Roughly shape lead ing edge wing set assembly aside Cut out ood firewalls drill Kraft KM-IS engine mounts install blind nuts Use pattern provided construct two fuel tanks K-S 254 Easy-Solder tin dream work Before closing up tanks 28 Model Aviation Ply plate provides exit point controi caoies romeo snrougn wing Cable guides must routed carefully avoid slop Wing bOom assembly shows aileron cable routing Note gas pipes FULL-SIZE PLANS AVAILABLE . SEE PAGE 140 ALL WING RIBS ARE 3/32 BALSA 14 REGAINED W-lW-2W-3W-A a---LI W-HW-7W-B 2 BEGS BANG FOWARO VB MUSIC WIRE I/B MUSIC WINE MAIN LANSING SEAR ______________ NOSE NEAR BALSA I/B BALSA N-N N -3 3 BEGS LU CUTOUTN-AN-6 IN CENTtR I3/32 BALSA /8 LITE PLY3/32 BALSA3A6 BALSA F-9ARIBF-OA SBHATCH F-IF-HABALSAIOUVNBALGAFII FA-3/35 BALSA F-3 I/B BULSAF-BF-BF-ISS/ID BALSA F-3BF-A 3/IC BALSA IGREM PLYI I/A BALSABALL HALESI/B I/A FON NONE3/32 LGA GEAR MOUNTI/A GAI/A BALSA3/32 BALSACS-S BALSA SOWELCONTROL CABLE SHEETV4 SHEET3/32 SHEET I/B I/HBLOCKSCKT AT F-B BALSA BLOCK-HATCH */s $-n UNEr -- /ICSS/ IF-lASH F-IlFOAM BLOCK BALSA--L -hISI B B 3 INCINENFE IF-AFHAi=-Th-I3AI II,V. ELEKAlII II F-I1F-3F-H1 O -/II SIIIII II II SIGEBYRBEI I/35PLYSOIWIIII II I1F3B3/35FLOCK OAOI BEOVOYNBE I\- TO F-B IIII F-I IFS/ IIII F-IS 2 ---- IR STRINGER F-S-ZJL5IAO I/B3/35 SHEET 3/35BALSA TRINGERSFANELANE SCES0 5 3 5 H 5/16 BALSA______________ MARE RGHT B LEFT VENTS FACE INBOA USE B N SSSA TIN MEET NORTHROP P-6l BLACK DOW DESIGNED & DRAWN BY FRANK B BAKER TRACING BY OE DEMARCO SHEET 2 install filler vents fuel pickup tube Sure make right left tank filler vents always face inboard fuel pickup location varies depending upon whether right left tank Drill /B-in hole fuel tube 1/16-in hole motor control cable firewall Push fuel tube gas tank through hole firewall roughly align tank back firewall Cut six landing gear mounting plates B Sig Lite Ply Bend main landing gear LB-in music wire Use epoxy assemble right left sandwich landing gear middle layer sure wheel axle faces inboard both assemblies Decide boom will left will right Construct booms mounting tirewallincludingthe tank formerson 4 square stringers Make sure holes control cables inside boom Horizontal vertical lines boom formers will help make straight booms particularly careful make sure firewalls zero degrees both vertically horizontally relative center line booms Check again tank vents wheel axles face inboard Once basic boom constructed sheet lower two-thirds 3/32 balsa will find single 3-in sheet can used nver full length boom Soak sheet balsa water containing some household ammonia will bend shape need Pica Gluit does nice job gluing damp sheets frame work N-5 N-8 cover top one-third tail boom Cut three 36-in lengths nylon control cable tubing string control tubes through holes formers Leave about 3 extending beyond N8 rear Install flexible cable tubing motor control through firewall N-2 Put small amount silicone sealer around-each tube keep slipping Now comes important part Place booms under wing mark rudder elevator control tubes touch top sheeting Cut slots cables can pass through Mark motor control tube enters bottom wing cut hole pass through Now pin booms wings after pulling control cables through holes Check see booms parallel both horizontally vertically process may require some cutting trimming booms get good fit alignment Finally use Robart incidence meter measure wing 3 degrees incidence booms February 1982 29 W-5 N-IBAD r p \ 1 I/A PLYVB BALSA N- N-8 B BALSABALSA OS Max 10 FSHs provide plenty power KraftHayes 15 mounts used Note elevator control cable routing along inside edge vertical f zero degrees correct glue booms bottom wing Route rudder elevator motor control tubes through wing ribs shown plans sharp piece brass tubing small round file can used make holes ribs Make 1/16 plywood cable plate route rudder elevator tubes through glue wing Run flexible metal cables through nylon tubing just make sure turns too tight Remove cables set whole assembly aside Build both outer wing panels install strip ailerons Install nylon tubes aileron control lines leaving enough reach center wing Teed control tubes through holes inner panel wing ribs glue outer panels dihedral braces protruding inboard panels Trim aileron fubes center per plans Feed flexible cable left aileron until about 3 comes out right aileron cut off left aileron about 3 showing Hobby Lobby bulk pack pays off need near full-span continuous length cable Install / 16 plywood servo mounting plate Tack-mount servo using mounting tape Solder Z-shaped 1/16-in music wire coupler flexible cable Check see servo can travel its full range Finish sheeting top booms top inner panels wings sure put 1/16 balsa extends lower wing sheeting outer panels provides place anchor wing covering hard part behind us now fuselage sides have 1/32 plywood doublers front half glued place contact cement Construct fuselage using normal procedures Note servo rails installed servos low front end Install favorite steerable nose wheel gear before sheet belly fuselage Note part fuselage above wing built separately Pin completed fuselage wing check alignment horizontal center line fuselage should match booms may have trim bit get everything aligned Glue fuselage bottom wing part fuselage above wing constructed nexL Build whole upper fuselage unit right wing lower fuselage Mark double former occurs rear hatch separation line tack glue formers ahead line either wing fuselage Glue foam block rear cone fuselage Carve sand whole fuselage shape Use razorsaw cut through rear hatch line forward hatch line pry hatch off used Goldberg cowl clips hold forward hatch did show plans hard install Ill leave hatch hold-down usual method Cut fins rudders Out soft sheet install hinges control arms Note both control arms face inboard Glue rudders booms use some foam blocks fair fins booms Add lower fins Now measure distance between vertical fins went well distance should match plans case cut stabilizer/elevator Out soft 14 sheet balsa measured distance Install hinges control horn glue place sure check stabilizer zero degrees relative center line boom Hnal control hookup Install lower plywood cable support plate fuselage Mount aileron servo have taken out Feed rudder elevator motor control nylon tubes through s plywood upper cable support plate use two screws attach lower plate Use some silicone sealer hold tubes place dry trim tubes about 1z ahead plate Run flexible metal cables through rudder elevator tubes leaving about 2 surface end enough reach F-7 fuselage end Solder threaded brass couplers HLH 809 cables Install nylon Kwik-Links middle threaded part clip control horn Trim away nylon tube until full control movement achieved Install rudder elevator motor servos servo tray mount unit servo rails Pin rudders neutral slip Du-Bro solder links flexible cable clip onto servo arms Trim excess cable solder links place Run both motor control cables through 1/16-in nylon tubes until F-7 reached about 2 protrudes beyond firewall Mount solder link motor control servo feed both cables Cut off excess cable solder link cables aileron end cables install threaded brass couplers have trimmed about l1 both threaded non-threaded ends Put aileron servo neutral trim cables until ailerons neutral everything fits control links snapped control horns solder couplers cables Finally run short piece tubing cable rudder servo nose gear install solder link end sure fasten tubing securely fuselage Install radio battery pack fuselage connect servos Set hatch down fuselage see hits things Use knife Dremel tool start carving away inside hatch i x 4 spruce stringer will need drastically cut away Keep carving until hatch fits Turn radio cycle controls Carve hatch until servos move full range hitting hatch cowls built using familiar balloon method Glue up some pine redwood turn down forms wood lathe Make forms about 12 longer cowls rear cowl can cut evenly Once cowls fabricated cut holes engine exhaust needle valve remembering right left Glue cowl supports firewall mount engines fit cowls Finish hooking up motor control cables linkages Use -in pan-head screws hold cowls supports whole model covered iron-on black Mylar film used EconoKote other brands also will nicely front booms landing gear forward sealed polyester resin painted black Pactra Formula U P-6 highly decorated except some white stars much trim add Flying P61 relatively large model small engines must treated respect during takeoff climb-out make easy possible wing has lot incidence nose gear adds nose-up stance intended get model airborne easily Typically taxi out wind hit full throttle let roll until appears light gear slight amount up elevator will cause lift-off Once air.keep shallow angle climb until speed builds up air P-6 relatively fast quite aerobatic does very nice loop will roll easily Don t roll too Continued page 110 30 Model Aviation heavy work done Select light wood center tail booms other sheeted areas save weight wherever can LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW MBSW6 b3ISVV4MASTER IMPROVED THROUGH FOUR YEARS OF PRODUCTION THE G/F SERIES IS UNEQUALED FOR PERFORMANCE & DURABILITY AVAILABLE WORLDWIDE THROUGH 131 DISTRIBUTORS WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 lASTER AIIISCiIIW PRESENTS BALSA STRIPPER 495 AT YOUR DEALER PRECISION STRIP WOOD TO INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 CANTON MODEL PRODUCTS Presents Dip Stick FAST QUICK / EASY TO FINISH D540 55 SPAN 560 SQ IN WING LOADING 165-20 OZ 29-45 ENGINE 43 LENGTH 3 OR 4 CHANNEL PRICE 4995 ADD 4 SHIPPING CHARGE DS 60 641/2 SPAN 672 SQ IN WING LOADING 20-22 OZ 46-60 ENGINE 48 LENGTH 3 OR 4 CHANNEL PRICE 5995 EXTREMELYADD 6 SHIPPING RUGGED TRAINER CHARGE WITH SYMMETRICAL AIRFOIL FOR AEROBATIC FLYING HIGHLY PRE-FABRICATED KIT INCLUDES PRE-SHEETED BALSA FOAM WINGS PRE-BUILT JIG ASSEMBLED WOOD FUSELAGE PRE-SHAPE BALSA TAIL ASSEMBLY PRE-FORMED LANDING GEAR TAIL WHEEL AND AILERON WIRES INSTRUCTION SHEET WITH FULLY ILLUSTRATED ASSEMBLY DRAWINGS tow P ceo Cannot 0 SCOUR Doale s Black Widow/Baker Continued page 30 slowly fixed fuel pick-ups will starve engine slow roll Black Widow dream touch-andgoes Use wide pattern set up long final approach lowest throttle does want lose altitude final approach model assumes rather flat attitude can held right down ground Application full throttle results immediate return air Frequency Scanner/Lange Continued page 39 wish use RC transmitter check accuracy signal generator coupling L6 L5 tuning [5 should checked peak curve amplitude con sistent good oscillator starting have made some sensitivity tests several converters signal generator calibrated output could usually detect 01 RG58/u RG59AJ large wheels landings grass field have no-bounce greasers Singleengine performance excellent allows plenty time set up normal landing approach ailerons sufficient handle singleengine situations rudders very effec tive want use Despite its size small engines P-6 handles like trainer docile has no hidden faults waiting bite goes point Best does great deal realism microvolt signals three microvolt sig nals boomed through loud clear Consid ering RC receivers rated two three microvolts sensitivity thats quite ac ceptable best results obtained using a3- 5-ft extended whip antenna 4 6 meters usually can hear RC fliers transmitter two four miles field over flat terrain car engine turned off Sources Crystals JAN Crystals 2400 Crystal Dr PO Box I12v conte-jr scope vert hor ground generator scope converter aluminum copper sheet bench 110 Model Aviation BANDPASS ALIGNMENT WITH SWEEP GENERATOR AND SCOPE 00 VHF sweep marker gen RF sweep out out tO ORDER SEND BANK CHECK OR MONEY ORDER TO CANTON MODEL PRODUCTS PO BOX 6063 CANTON OHIO 44706 OR CALL 216 4541539 FOR IMMEDIATE COD SHIPMENT
Edition: Model Aviation - 1982/02
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 110
NO OCR TEXT NO OCR TEXT museum surprised small P-6 1 seemed parked next Douglas B-26 seemed much larger air plane P-61 fuselage slightly wider pilots shoulders tail booms rudders also much smaller anticipated perception aircrafts size based entirely photographs Black Widow aircraft naturally lends itself being modeled has large wing long nose relatively long tail moment arm addition has imposing look about have taken few liberties certain fea tures actual P-6 1 sharply tapered Outer wing panels very small ailerons main roll control means spoilers widened wing tips inch used full-span strip ailerons full-size aircraft has large number air scoops oil coolers etc hanging over engine cowls Since Im too lazy carve simply left off Finally P-6 1 rather large wing leading edge air intakes also left off Other discrepancies aircraft true scale Since think 0 S Max 10 FSR jewel engine Black Widow model designed 26 Model Aviation Servo installation tight accessible Nylon guides held ply former silicone sealer Former lifts up aileron servo 09 Max 10 rests its mount Triangles cowl supports Rearview shows siightguii wing used improve prop clearance iotof propeller extends beyond cowling side Elevator cable brought up insidethefin position forthe control horn Rudder cable passes through foam rear boom block arge wing makes model excellent flier Covering black EconoKote painted gray windows TflIs big model two small engines must built tight Author shows off 61 local park gqeFPMOCAUW tAt0 Oil LAtCA 4E.- F VAt BUY 7 uCP 7 NKLAR CABiN CANOPY IS ONLYBALSA BLOCK HATCH REMOVABLEFAIRING N 6 BALSA BLOCK FiBERGLASS COWUNGSI/B X 1/4 SPRUCE RAIL FOAM BLOCK CANOPIES AND TAIL TURRET T REMOVABLE HOLLOW BLOCK1/4 BALSA TURRET SHEET TOP ALL GOLDBERG SM NYLON CLEVISES TOOTH PICK/4 BALSA ELEVATOR1/4 BALSA FIN EGS IF NEEDEDAND STABILIZERAND RUDDERS 1/4 HARDWOOD SID FOAM FAIRINGS 1/4 50 BALSA STRINGERS IN BQMS AND FUSELAGE 3/32 BALSA BOOM SHEETING 1/16 SHEET BALSA TOP-BOlTOM WING CENTER SECTION ONLY 1/4 BALSA AILERON T ESTOCK I/4X 3/B BALSA REAR SPAR EXTEND INTO CENTER SEC 3/32 BALSA GUSSETS STIFFEN TE 11F /4 CDBALSA C C 01/32 PLYWOJO FUSECOWL DOUBLER FIAOFBMOUNiS I1/8 PLYVJOO MAIN SPAR F 11/4 BALSA3/32 SHEET BALSAJOINER AT C/L ThRU 4 BAiS FUSELAGE COVERING I/B MWIRE GEAR SANDWICHED3 1/4 MAIN IN TRIPLED I/B PLYWOOD N 3WHEELS 2 I/2NOSEWHEELON V8M WIRE I/B PLYWOOD MAIN SPAR REINFORCING THRU 5 RIB BAYS OPTIONAL I/B PLYWcOD LEDGE REINFOICING TI-IRU 5 RIB BAYS AT WING BUrr SOLID BALSA TIPS 7 1/16 BALSA WEBS BEHIND SPARS 3/BtX 1/2 BALSA L EDGE STOCK I/B X 1/4 SPRUCE SPARS UPPER AND LOWER BRACE I SERVO PLATEMOTOR CONTRA CAPLE3/B LIt BALSA LEAGPLG CAGE BRACE I/TA SHEET THE BOTTOM Er SHEET CR1 RHYTEWI LE cENTER CE GETER 1IIXIIiiiL OJEGOARD WINO HHTER REHiRED ALL AIWONAL BRACES ARE VA PLC IIII \II ii \III 51Lii I1K J II K vASPt IRE PIT BRACE III I/ -7 CR PLY hAl -_ Al~I} WAWINGASWAjAHTjARAS /1 CIA CEOTICAL ACES BET5132HINGE ALL MRSRGISAlA lAB CR SlEET BOTTOM ONLY3/32 /GUSSEEG- AC GE N GOWN 7 E -ALEHON STASH ElRIA-IAlAl-APIWIVIA SHEET TOE N BOTTOMII ________II 0 N3 RIGHT BOOM GAIT RAW AR GRASS TIREI CS SHETSTABILIZER ELEVI/I SHET OTHINO OSGAIT ROOM OSd COCA CAIASOCLECIS I/I SO STRINGERSRJGOC TYMEAGEC NORTHROP P-61 BLACK WIDOW DEsIERED ORAWIN BY FRANK B BAKER ThAONG er DEMARcOALAEB around result rather large model engine size flies perfectly Due its size biggest enemy weight choose wood carefully sand wood much dare Construction airframe construction straightforward control system plumbers nightmare Once decided put servos fuselage die cast unique solution actuating rudders elevators employed nylon tubing flexible metal cable inside stuff usually used motor control sold bulk Hobby Lobby HLH 805 allowed bend tubing various ways reach desired locations also meant once installed would never seen again end result control system smooth functions per fectly yet can easily adjusted trim purposes side effect need partially build wing booms order route control tubing may seem rather formidable actually goes together logically easily have partitioned construction series stages should help doing right thing right time Build framework two inner wing panels joining tbem center using R plywood dihedral braces paying particular atten tion locating top inboard Sheet whole bottom wing inch top trailing edge Roughly shape lead ing edge wing set assembly aside Cut out ood firewalls drill Kraft KM-IS engine mounts install blind nuts Use pattern provided construct two fuel tanks K-S 254 Easy-Solder tin dream work Before closing up tanks 28 Model Aviation Ply plate provides exit point controi caoies romeo snrougn wing Cable guides must routed carefully avoid slop Wing bOom assembly shows aileron cable routing Note gas pipes FULL-SIZE PLANS AVAILABLE . SEE PAGE 140 ALL WING RIBS ARE 3/32 BALSA 14 REGAINED W-lW-2W-3W-A a---LI W-HW-7W-B 2 BEGS BANG FOWARO VB MUSIC WIRE I/B MUSIC WINE MAIN LANSING SEAR ______________ NOSE NEAR BALSA I/B BALSA N-N N -3 3 BEGS LU CUTOUTN-AN-6 IN CENTtR I3/32 BALSA /8 LITE PLY3/32 BALSA3A6 BALSA F-9ARIBF-OA SBHATCH F-IF-HABALSAIOUVNBALGAFII FA-3/35 BALSA F-3 I/B BULSAF-BF-BF-ISS/ID BALSA F-3BF-A 3/IC BALSA IGREM PLYI I/A BALSABALL HALESI/B I/A FON NONE3/32 LGA GEAR MOUNTI/A GAI/A BALSA3/32 BALSACS-S BALSA SOWELCONTROL CABLE SHEETV4 SHEET3/32 SHEET I/B I/HBLOCKSCKT AT F-B BALSA BLOCK-HATCH */s $-n UNEr -- /ICSS/ IF-lASH F-IlFOAM BLOCK BALSA--L -hISI B B 3 INCINENFE IF-AFHAi=-Th-I3AI II,V. ELEKAlII II F-I1F-3F-H1 O -/II SIIIII II II SIGEBYRBEI I/35PLYSOIWIIII II I1F3B3/35FLOCK OAOI BEOVOYNBE I\- TO F-B IIII F-I IFS/ IIII F-IS 2 ---- IR STRINGER F-S-ZJL5IAO I/B3/35 SHEET 3/35BALSA TRINGERSFANELANE SCES0 5 3 5 H 5/16 BALSA______________ MARE RGHT B LEFT VENTS FACE INBOA USE B N SSSA TIN MEET NORTHROP P-6l BLACK DOW DESIGNED & DRAWN BY FRANK B BAKER TRACING BY OE DEMARCO SHEET 2 install filler vents fuel pickup tube Sure make right left tank filler vents always face inboard fuel pickup location varies depending upon whether right left tank Drill /B-in hole fuel tube 1/16-in hole motor control cable firewall Push fuel tube gas tank through hole firewall roughly align tank back firewall Cut six landing gear mounting plates B Sig Lite Ply Bend main landing gear LB-in music wire Use epoxy assemble right left sandwich landing gear middle layer sure wheel axle faces inboard both assemblies Decide boom will left will right Construct booms mounting tirewallincludingthe tank formerson 4 square stringers Make sure holes control cables inside boom Horizontal vertical lines boom formers will help make straight booms particularly careful make sure firewalls zero degrees both vertically horizontally relative center line booms Check again tank vents wheel axles face inboard Once basic boom constructed sheet lower two-thirds 3/32 balsa will find single 3-in sheet can used nver full length boom Soak sheet balsa water containing some household ammonia will bend shape need Pica Gluit does nice job gluing damp sheets frame work N-5 N-8 cover top one-third tail boom Cut three 36-in lengths nylon control cable tubing string control tubes through holes formers Leave about 3 extending beyond N8 rear Install flexible cable tubing motor control through firewall N-2 Put small amount silicone sealer around-each tube keep slipping Now comes important part Place booms under wing mark rudder elevator control tubes touch top sheeting Cut slots cables can pass through Mark motor control tube enters bottom wing cut hole pass through Now pin booms wings after pulling control cables through holes Check see booms parallel both horizontally vertically process may require some cutting trimming booms get good fit alignment Finally use Robart incidence meter measure wing 3 degrees incidence booms February 1982 29 W-5 N-IBAD r p \ 1 I/A PLYVB BALSA N- N-8 B BALSABALSA OS Max 10 FSHs provide plenty power KraftHayes 15 mounts used Note elevator control cable routing along inside edge vertical f zero degrees correct glue booms bottom wing Route rudder elevator motor control tubes through wing ribs shown plans sharp piece brass tubing small round file can used make holes ribs Make 1/16 plywood cable plate route rudder elevator tubes through glue wing Run flexible metal cables through nylon tubing just make sure turns too tight Remove cables set whole assembly aside Build both outer wing panels install strip ailerons Install nylon tubes aileron control lines leaving enough reach center wing Teed control tubes through holes inner panel wing ribs glue outer panels dihedral braces protruding inboard panels Trim aileron fubes center per plans Feed flexible cable left aileron until about 3 comes out right aileron cut off left aileron about 3 showing Hobby Lobby bulk pack pays off need near full-span continuous length cable Install / 16 plywood servo mounting plate Tack-mount servo using mounting tape Solder Z-shaped 1/16-in music wire coupler flexible cable Check see servo can travel its full range Finish sheeting top booms top inner panels wings sure put 1/16 balsa extends lower wing sheeting outer panels provides place anchor wing covering hard part behind us now fuselage sides have 1/32 plywood doublers front half glued place contact cement Construct fuselage using normal procedures Note servo rails installed servos low front end Install favorite steerable nose wheel gear before sheet belly fuselage Note part fuselage above wing built separately Pin completed fuselage wing check alignment horizontal center line fuselage should match booms may have trim bit get everything aligned Glue fuselage bottom wing part fuselage above wing constructed nexL Build whole upper fuselage unit right wing lower fuselage Mark double former occurs rear hatch separation line tack glue formers ahead line either wing fuselage Glue foam block rear cone fuselage Carve sand whole fuselage shape Use razorsaw cut through rear hatch line forward hatch line pry hatch off used Goldberg cowl clips hold forward hatch did show plans hard install Ill leave hatch hold-down usual method Cut fins rudders Out soft sheet install hinges control arms Note both control arms face inboard Glue rudders booms use some foam blocks fair fins booms Add lower fins Now measure distance between vertical fins went well distance should match plans case cut stabilizer/elevator Out soft 14 sheet balsa measured distance Install hinges control horn glue place sure check stabilizer zero degrees relative center line boom Hnal control hookup Install lower plywood cable support plate fuselage Mount aileron servo have taken out Feed rudder elevator motor control nylon tubes through s plywood upper cable support plate use two screws attach lower plate Use some silicone sealer hold tubes place dry trim tubes about 1z ahead plate Run flexible metal cables through rudder elevator tubes leaving about 2 surface end enough reach F-7 fuselage end Solder threaded brass couplers HLH 809 cables Install nylon Kwik-Links middle threaded part clip control horn Trim away nylon tube until full control movement achieved Install rudder elevator motor servos servo tray mount unit servo rails Pin rudders neutral slip Du-Bro solder links flexible cable clip onto servo arms Trim excess cable solder links place Run both motor control cables through 1/16-in nylon tubes until F-7 reached about 2 protrudes beyond firewall Mount solder link motor control servo feed both cables Cut off excess cable solder link cables aileron end cables install threaded brass couplers have trimmed about l1 both threaded non-threaded ends Put aileron servo neutral trim cables until ailerons neutral everything fits control links snapped control horns solder couplers cables Finally run short piece tubing cable rudder servo nose gear install solder link end sure fasten tubing securely fuselage Install radio battery pack fuselage connect servos Set hatch down fuselage see hits things Use knife Dremel tool start carving away inside hatch i x 4 spruce stringer will need drastically cut away Keep carving until hatch fits Turn radio cycle controls Carve hatch until servos move full range hitting hatch cowls built using familiar balloon method Glue up some pine redwood turn down forms wood lathe Make forms about 12 longer cowls rear cowl can cut evenly Once cowls fabricated cut holes engine exhaust needle valve remembering right left Glue cowl supports firewall mount engines fit cowls Finish hooking up motor control cables linkages Use -in pan-head screws hold cowls supports whole model covered iron-on black Mylar film used EconoKote other brands also will nicely front booms landing gear forward sealed polyester resin painted black Pactra Formula U P-6 highly decorated except some white stars much trim add Flying P61 relatively large model small engines must treated respect during takeoff climb-out make easy possible wing has lot incidence nose gear adds nose-up stance intended get model airborne easily Typically taxi out wind hit full throttle let roll until appears light gear slight amount up elevator will cause lift-off Once air.keep shallow angle climb until speed builds up air P-6 relatively fast quite aerobatic does very nice loop will roll easily Don t roll too Continued page 110 30 Model Aviation heavy work done Select light wood center tail booms other sheeted areas save weight wherever can LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW MBSW6 b3ISVV4MASTER IMPROVED THROUGH FOUR YEARS OF PRODUCTION THE G/F SERIES IS UNEQUALED FOR PERFORMANCE & DURABILITY AVAILABLE WORLDWIDE THROUGH 131 DISTRIBUTORS WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 lASTER AIIISCiIIW PRESENTS BALSA STRIPPER 495 AT YOUR DEALER PRECISION STRIP WOOD TO INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 CANTON MODEL PRODUCTS Presents Dip Stick FAST QUICK / EASY TO FINISH D540 55 SPAN 560 SQ IN WING LOADING 165-20 OZ 29-45 ENGINE 43 LENGTH 3 OR 4 CHANNEL PRICE 4995 ADD 4 SHIPPING CHARGE DS 60 641/2 SPAN 672 SQ IN WING LOADING 20-22 OZ 46-60 ENGINE 48 LENGTH 3 OR 4 CHANNEL PRICE 5995 EXTREMELYADD 6 SHIPPING RUGGED TRAINER CHARGE WITH SYMMETRICAL AIRFOIL FOR AEROBATIC FLYING HIGHLY PRE-FABRICATED KIT INCLUDES PRE-SHEETED BALSA FOAM WINGS PRE-BUILT JIG ASSEMBLED WOOD FUSELAGE PRE-SHAPE BALSA TAIL ASSEMBLY PRE-FORMED LANDING GEAR TAIL WHEEL AND AILERON WIRES INSTRUCTION SHEET WITH FULLY ILLUSTRATED ASSEMBLY DRAWINGS tow P ceo Cannot 0 SCOUR Doale s Black Widow/Baker Continued page 30 slowly fixed fuel pick-ups will starve engine slow roll Black Widow dream touch-andgoes Use wide pattern set up long final approach lowest throttle does want lose altitude final approach model assumes rather flat attitude can held right down ground Application full throttle results immediate return air Frequency Scanner/Lange Continued page 39 wish use RC transmitter check accuracy signal generator coupling L6 L5 tuning [5 should checked peak curve amplitude con sistent good oscillator starting have made some sensitivity tests several converters signal generator calibrated output could usually detect 01 RG58/u RG59AJ large wheels landings grass field have no-bounce greasers Singleengine performance excellent allows plenty time set up normal landing approach ailerons sufficient handle singleengine situations rudders very effec tive want use Despite its size small engines P-6 handles like trainer docile has no hidden faults waiting bite goes point Best does great deal realism microvolt signals three microvolt sig nals boomed through loud clear Consid ering RC receivers rated two three microvolts sensitivity thats quite ac ceptable best results obtained using a3- 5-ft extended whip antenna 4 6 meters usually can hear RC fliers transmitter two four miles field over flat terrain car engine turned off Sources Crystals JAN Crystals 2400 Crystal Dr PO Box I12v conte-jr scope vert hor ground generator scope converter aluminum copper sheet bench 110 Model Aviation BANDPASS ALIGNMENT WITH SWEEP GENERATOR AND SCOPE 00 VHF sweep marker gen RF sweep out out tO ORDER SEND BANK CHECK OR MONEY ORDER TO CANTON MODEL PRODUCTS PO BOX 6063 CANTON OHIO 44706 OR CALL 216 4541539 FOR IMMEDIATE COD SHIPMENT
Edition: Model Aviation - 1982/02
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 110
NO OCR TEXT NO OCR TEXT museum surprised small P-6 1 seemed parked next Douglas B-26 seemed much larger air plane P-61 fuselage slightly wider pilots shoulders tail booms rudders also much smaller anticipated perception aircrafts size based entirely photographs Black Widow aircraft naturally lends itself being modeled has large wing long nose relatively long tail moment arm addition has imposing look about have taken few liberties certain fea tures actual P-6 1 sharply tapered Outer wing panels very small ailerons main roll control means spoilers widened wing tips inch used full-span strip ailerons full-size aircraft has large number air scoops oil coolers etc hanging over engine cowls Since Im too lazy carve simply left off Finally P-6 1 rather large wing leading edge air intakes also left off Other discrepancies aircraft true scale Since think 0 S Max 10 FSR jewel engine Black Widow model designed 26 Model Aviation Servo installation tight accessible Nylon guides held ply former silicone sealer Former lifts up aileron servo 09 Max 10 rests its mount Triangles cowl supports Rearview shows siightguii wing used improve prop clearance iotof propeller extends beyond cowling side Elevator cable brought up insidethefin position forthe control horn Rudder cable passes through foam rear boom block arge wing makes model excellent flier Covering black EconoKote painted gray windows TflIs big model two small engines must built tight Author shows off 61 local park gqeFPMOCAUW tAt0 Oil LAtCA 4E.- F VAt BUY 7 uCP 7 NKLAR CABiN CANOPY IS ONLYBALSA BLOCK HATCH REMOVABLEFAIRING N 6 BALSA BLOCK FiBERGLASS COWUNGSI/B X 1/4 SPRUCE RAIL FOAM BLOCK CANOPIES AND TAIL TURRET T REMOVABLE HOLLOW BLOCK1/4 BALSA TURRET SHEET TOP ALL GOLDBERG SM NYLON CLEVISES TOOTH PICK/4 BALSA ELEVATOR1/4 BALSA FIN EGS IF NEEDEDAND STABILIZERAND RUDDERS 1/4 HARDWOOD SID FOAM FAIRINGS 1/4 50 BALSA STRINGERS IN BQMS AND FUSELAGE 3/32 BALSA BOOM SHEETING 1/16 SHEET BALSA TOP-BOlTOM WING CENTER SECTION ONLY 1/4 BALSA AILERON T ESTOCK I/4X 3/B BALSA REAR SPAR EXTEND INTO CENTER SEC 3/32 BALSA GUSSETS STIFFEN TE 11F /4 CDBALSA C C 01/32 PLYWOJO FUSECOWL DOUBLER FIAOFBMOUNiS I1/8 PLYVJOO MAIN SPAR F 11/4 BALSA3/32 SHEET BALSAJOINER AT C/L ThRU 4 BAiS FUSELAGE COVERING I/B MWIRE GEAR SANDWICHED3 1/4 MAIN IN TRIPLED I/B PLYWOOD N 3WHEELS 2 I/2NOSEWHEELON V8M WIRE I/B PLYWOOD MAIN SPAR REINFORCING THRU 5 RIB BAYS OPTIONAL I/B PLYWcOD LEDGE REINFOICING TI-IRU 5 RIB BAYS AT WING BUrr SOLID BALSA TIPS 7 1/16 BALSA WEBS BEHIND SPARS 3/BtX 1/2 BALSA L EDGE STOCK I/B X 1/4 SPRUCE SPARS UPPER AND LOWER BRACE I SERVO PLATEMOTOR CONTRA CAPLE3/B LIt BALSA LEAGPLG CAGE BRACE I/TA SHEET THE BOTTOM Er SHEET CR1 RHYTEWI LE cENTER CE GETER 1IIXIIiiiL OJEGOARD WINO HHTER REHiRED ALL AIWONAL BRACES ARE VA PLC IIII \II ii \III 51Lii I1K J II K vASPt IRE PIT BRACE III I/ -7 CR PLY hAl -_ Al~I} WAWINGASWAjAHTjARAS /1 CIA CEOTICAL ACES BET5132HINGE ALL MRSRGISAlA lAB CR SlEET BOTTOM ONLY3/32 /GUSSEEG- AC GE N GOWN 7 E -ALEHON STASH ElRIA-IAlAl-APIWIVIA SHEET TOE N BOTTOMII ________II 0 N3 RIGHT BOOM GAIT RAW AR GRASS TIREI CS SHETSTABILIZER ELEVI/I SHET OTHINO OSGAIT ROOM OSd COCA CAIASOCLECIS I/I SO STRINGERSRJGOC TYMEAGEC NORTHROP P-61 BLACK WIDOW DEsIERED ORAWIN BY FRANK B BAKER ThAONG er DEMARcOALAEB around result rather large model engine size flies perfectly Due its size biggest enemy weight choose wood carefully sand wood much dare Construction airframe construction straightforward control system plumbers nightmare Once decided put servos fuselage die cast unique solution actuating rudders elevators employed nylon tubing flexible metal cable inside stuff usually used motor control sold bulk Hobby Lobby HLH 805 allowed bend tubing various ways reach desired locations also meant once installed would never seen again end result control system smooth functions per fectly yet can easily adjusted trim purposes side effect need partially build wing booms order route control tubing may seem rather formidable actually goes together logically easily have partitioned construction series stages should help doing right thing right time Build framework two inner wing panels joining tbem center using R plywood dihedral braces paying particular atten tion locating top inboard Sheet whole bottom wing inch top trailing edge Roughly shape lead ing edge wing set assembly aside Cut out ood firewalls drill Kraft KM-IS engine mounts install blind nuts Use pattern provided construct two fuel tanks K-S 254 Easy-Solder tin dream work Before closing up tanks 28 Model Aviation Ply plate provides exit point controi caoies romeo snrougn wing Cable guides must routed carefully avoid slop Wing bOom assembly shows aileron cable routing Note gas pipes FULL-SIZE PLANS AVAILABLE . SEE PAGE 140 ALL WING RIBS ARE 3/32 BALSA 14 REGAINED W-lW-2W-3W-A a---LI W-HW-7W-B 2 BEGS BANG FOWARO VB MUSIC WIRE I/B MUSIC WINE MAIN LANSING SEAR ______________ NOSE NEAR BALSA I/B BALSA N-N N -3 3 BEGS LU CUTOUTN-AN-6 IN CENTtR I3/32 BALSA /8 LITE PLY3/32 BALSA3A6 BALSA F-9ARIBF-OA SBHATCH F-IF-HABALSAIOUVNBALGAFII FA-3/35 BALSA F-3 I/B BULSAF-BF-BF-ISS/ID BALSA F-3BF-A 3/IC BALSA IGREM PLYI I/A BALSABALL HALESI/B I/A FON NONE3/32 LGA GEAR MOUNTI/A GAI/A BALSA3/32 BALSACS-S BALSA SOWELCONTROL CABLE SHEETV4 SHEET3/32 SHEET I/B I/HBLOCKSCKT AT F-B BALSA BLOCK-HATCH */s $-n UNEr -- /ICSS/ IF-lASH F-IlFOAM BLOCK BALSA--L -hISI B B 3 INCINENFE IF-AFHAi=-Th-I3AI II,V. ELEKAlII II F-I1F-3F-H1 O -/II SIIIII II II SIGEBYRBEI I/35PLYSOIWIIII II I1F3B3/35FLOCK OAOI BEOVOYNBE I\- TO F-B IIII F-I IFS/ IIII F-IS 2 ---- IR STRINGER F-S-ZJL5IAO I/B3/35 SHEET 3/35BALSA TRINGERSFANELANE SCES0 5 3 5 H 5/16 BALSA______________ MARE RGHT B LEFT VENTS FACE INBOA USE B N SSSA TIN MEET NORTHROP P-6l BLACK DOW DESIGNED & DRAWN BY FRANK B BAKER TRACING BY OE DEMARCO SHEET 2 install filler vents fuel pickup tube Sure make right left tank filler vents always face inboard fuel pickup location varies depending upon whether right left tank Drill /B-in hole fuel tube 1/16-in hole motor control cable firewall Push fuel tube gas tank through hole firewall roughly align tank back firewall Cut six landing gear mounting plates B Sig Lite Ply Bend main landing gear LB-in music wire Use epoxy assemble right left sandwich landing gear middle layer sure wheel axle faces inboard both assemblies Decide boom will left will right Construct booms mounting tirewallincludingthe tank formerson 4 square stringers Make sure holes control cables inside boom Horizontal vertical lines boom formers will help make straight booms particularly careful make sure firewalls zero degrees both vertically horizontally relative center line booms Check again tank vents wheel axles face inboard Once basic boom constructed sheet lower two-thirds 3/32 balsa will find single 3-in sheet can used nver full length boom Soak sheet balsa water containing some household ammonia will bend shape need Pica Gluit does nice job gluing damp sheets frame work N-5 N-8 cover top one-third tail boom Cut three 36-in lengths nylon control cable tubing string control tubes through holes formers Leave about 3 extending beyond N8 rear Install flexible cable tubing motor control through firewall N-2 Put small amount silicone sealer around-each tube keep slipping Now comes important part Place booms under wing mark rudder elevator control tubes touch top sheeting Cut slots cables can pass through Mark motor control tube enters bottom wing cut hole pass through Now pin booms wings after pulling control cables through holes Check see booms parallel both horizontally vertically process may require some cutting trimming booms get good fit alignment Finally use Robart incidence meter measure wing 3 degrees incidence booms February 1982 29 W-5 N-IBAD r p \ 1 I/A PLYVB BALSA N- N-8 B BALSABALSA OS Max 10 FSHs provide plenty power KraftHayes 15 mounts used Note elevator control cable routing along inside edge vertical f zero degrees correct glue booms bottom wing Route rudder elevator motor control tubes through wing ribs shown plans sharp piece brass tubing small round file can used make holes ribs Make 1/16 plywood cable plate route rudder elevator tubes through glue wing Run flexible metal cables through nylon tubing just make sure turns too tight Remove cables set whole assembly aside Build both outer wing panels install strip ailerons Install nylon tubes aileron control lines leaving enough reach center wing Teed control tubes through holes inner panel wing ribs glue outer panels dihedral braces protruding inboard panels Trim aileron fubes center per plans Feed flexible cable left aileron until about 3 comes out right aileron cut off left aileron about 3 showing Hobby Lobby bulk pack pays off need near full-span continuous length cable Install / 16 plywood servo mounting plate Tack-mount servo using mounting tape Solder Z-shaped 1/16-in music wire coupler flexible cable Check see servo can travel its full range Finish sheeting top booms top inner panels wings sure put 1/16 balsa extends lower wing sheeting outer panels provides place anchor wing covering hard part behind us now fuselage sides have 1/32 plywood doublers front half glued place contact cement Construct fuselage using normal procedures Note servo rails installed servos low front end Install favorite steerable nose wheel gear before sheet belly fuselage Note part fuselage above wing built separately Pin completed fuselage wing check alignment horizontal center line fuselage should match booms may have trim bit get everything aligned Glue fuselage bottom wing part fuselage above wing constructed nexL Build whole upper fuselage unit right wing lower fuselage Mark double former occurs rear hatch separation line tack glue formers ahead line either wing fuselage Glue foam block rear cone fuselage Carve sand whole fuselage shape Use razorsaw cut through rear hatch line forward hatch line pry hatch off used Goldberg cowl clips hold forward hatch did show plans hard install Ill leave hatch hold-down usual method Cut fins rudders Out soft sheet install hinges control arms Note both control arms face inboard Glue rudders booms use some foam blocks fair fins booms Add lower fins Now measure distance between vertical fins went well distance should match plans case cut stabilizer/elevator Out soft 14 sheet balsa measured distance Install hinges control horn glue place sure check stabilizer zero degrees relative center line boom Hnal control hookup Install lower plywood cable support plate fuselage Mount aileron servo have taken out Feed rudder elevator motor control nylon tubes through s plywood upper cable support plate use two screws attach lower plate Use some silicone sealer hold tubes place dry trim tubes about 1z ahead plate Run flexible metal cables through rudder elevator tubes leaving about 2 surface end enough reach F-7 fuselage end Solder threaded brass couplers HLH 809 cables Install nylon Kwik-Links middle threaded part clip control horn Trim away nylon tube until full control movement achieved Install rudder elevator motor servos servo tray mount unit servo rails Pin rudders neutral slip Du-Bro solder links flexible cable clip onto servo arms Trim excess cable solder links place Run both motor control cables through 1/16-in nylon tubes until F-7 reached about 2 protrudes beyond firewall Mount solder link motor control servo feed both cables Cut off excess cable solder link cables aileron end cables install threaded brass couplers have trimmed about l1 both threaded non-threaded ends Put aileron servo neutral trim cables until ailerons neutral everything fits control links snapped control horns solder couplers cables Finally run short piece tubing cable rudder servo nose gear install solder link end sure fasten tubing securely fuselage Install radio battery pack fuselage connect servos Set hatch down fuselage see hits things Use knife Dremel tool start carving away inside hatch i x 4 spruce stringer will need drastically cut away Keep carving until hatch fits Turn radio cycle controls Carve hatch until servos move full range hitting hatch cowls built using familiar balloon method Glue up some pine redwood turn down forms wood lathe Make forms about 12 longer cowls rear cowl can cut evenly Once cowls fabricated cut holes engine exhaust needle valve remembering right left Glue cowl supports firewall mount engines fit cowls Finish hooking up motor control cables linkages Use -in pan-head screws hold cowls supports whole model covered iron-on black Mylar film used EconoKote other brands also will nicely front booms landing gear forward sealed polyester resin painted black Pactra Formula U P-6 highly decorated except some white stars much trim add Flying P61 relatively large model small engines must treated respect during takeoff climb-out make easy possible wing has lot incidence nose gear adds nose-up stance intended get model airborne easily Typically taxi out wind hit full throttle let roll until appears light gear slight amount up elevator will cause lift-off Once air.keep shallow angle climb until speed builds up air P-6 relatively fast quite aerobatic does very nice loop will roll easily Don t roll too Continued page 110 30 Model Aviation heavy work done Select light wood center tail booms other sheeted areas save weight wherever can LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW MBSW6 b3ISVV4MASTER IMPROVED THROUGH FOUR YEARS OF PRODUCTION THE G/F SERIES IS UNEQUALED FOR PERFORMANCE & DURABILITY AVAILABLE WORLDWIDE THROUGH 131 DISTRIBUTORS WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 lASTER AIIISCiIIW PRESENTS BALSA STRIPPER 495 AT YOUR DEALER PRECISION STRIP WOOD TO INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 CANTON MODEL PRODUCTS Presents Dip Stick FAST QUICK / EASY TO FINISH D540 55 SPAN 560 SQ IN WING LOADING 165-20 OZ 29-45 ENGINE 43 LENGTH 3 OR 4 CHANNEL PRICE 4995 ADD 4 SHIPPING CHARGE DS 60 641/2 SPAN 672 SQ IN WING LOADING 20-22 OZ 46-60 ENGINE 48 LENGTH 3 OR 4 CHANNEL PRICE 5995 EXTREMELYADD 6 SHIPPING RUGGED TRAINER CHARGE WITH SYMMETRICAL AIRFOIL FOR AEROBATIC FLYING HIGHLY PRE-FABRICATED KIT INCLUDES PRE-SHEETED BALSA FOAM WINGS PRE-BUILT JIG ASSEMBLED WOOD FUSELAGE PRE-SHAPE BALSA TAIL ASSEMBLY PRE-FORMED LANDING GEAR TAIL WHEEL AND AILERON WIRES INSTRUCTION SHEET WITH FULLY ILLUSTRATED ASSEMBLY DRAWINGS tow P ceo Cannot 0 SCOUR Doale s Black Widow/Baker Continued page 30 slowly fixed fuel pick-ups will starve engine slow roll Black Widow dream touch-andgoes Use wide pattern set up long final approach lowest throttle does want lose altitude final approach model assumes rather flat attitude can held right down ground Application full throttle results immediate return air Frequency Scanner/Lange Continued page 39 wish use RC transmitter check accuracy signal generator coupling L6 L5 tuning [5 should checked peak curve amplitude con sistent good oscillator starting have made some sensitivity tests several converters signal generator calibrated output could usually detect 01 RG58/u RG59AJ large wheels landings grass field have no-bounce greasers Singleengine performance excellent allows plenty time set up normal landing approach ailerons sufficient handle singleengine situations rudders very effec tive want use Despite its size small engines P-6 handles like trainer docile has no hidden faults waiting bite goes point Best does great deal realism microvolt signals three microvolt sig nals boomed through loud clear Consid ering RC receivers rated two three microvolts sensitivity thats quite ac ceptable best results obtained using a3- 5-ft extended whip antenna 4 6 meters usually can hear RC fliers transmitter two four miles field over flat terrain car engine turned off Sources Crystals JAN Crystals 2400 Crystal Dr PO Box I12v conte-jr scope vert hor ground generator scope converter aluminum copper sheet bench 110 Model Aviation BANDPASS ALIGNMENT WITH SWEEP GENERATOR AND SCOPE 00 VHF sweep marker gen RF sweep out out tO ORDER SEND BANK CHECK OR MONEY ORDER TO CANTON MODEL PRODUCTS PO BOX 6063 CANTON OHIO 44706 OR CALL 216 4541539 FOR IMMEDIATE COD SHIPMENT
Edition: Model Aviation - 1982/02
Page Numbers: 24, 25, 26, 27, 28, 29, 30, 110
NO OCR TEXT NO OCR TEXT museum surprised small P-6 1 seemed parked next Douglas B-26 seemed much larger air plane P-61 fuselage slightly wider pilots shoulders tail booms rudders also much smaller anticipated perception aircrafts size based entirely photographs Black Widow aircraft naturally lends itself being modeled has large wing long nose relatively long tail moment arm addition has imposing look about have taken few liberties certain fea tures actual P-6 1 sharply tapered Outer wing panels very small ailerons main roll control means spoilers widened wing tips inch used full-span strip ailerons full-size aircraft has large number air scoops oil coolers etc hanging over engine cowls Since Im too lazy carve simply left off Finally P-6 1 rather large wing leading edge air intakes also left off Other discrepancies aircraft true scale Since think 0 S Max 10 FSR jewel engine Black Widow model designed 26 Model Aviation Servo installation tight accessible Nylon guides held ply former silicone sealer Former lifts up aileron servo 09 Max 10 rests its mount Triangles cowl supports Rearview shows siightguii wing used improve prop clearance iotof propeller extends beyond cowling side Elevator cable brought up insidethefin position forthe control horn Rudder cable passes through foam rear boom block arge wing makes model excellent flier Covering black EconoKote painted gray windows TflIs big model two small engines must built tight Author shows off 61 local park gqeFPMOCAUW tAt0 Oil LAtCA 4E.- F VAt BUY 7 uCP 7 NKLAR CABiN CANOPY IS ONLYBALSA BLOCK HATCH REMOVABLEFAIRING N 6 BALSA BLOCK FiBERGLASS COWUNGSI/B X 1/4 SPRUCE RAIL FOAM BLOCK CANOPIES AND TAIL TURRET T REMOVABLE HOLLOW BLOCK1/4 BALSA TURRET SHEET TOP ALL GOLDBERG SM NYLON CLEVISES TOOTH PICK/4 BALSA ELEVATOR1/4 BALSA FIN EGS IF NEEDEDAND STABILIZERAND RUDDERS 1/4 HARDWOOD SID FOAM FAIRINGS 1/4 50 BALSA STRINGERS IN BQMS AND FUSELAGE 3/32 BALSA BOOM SHEETING 1/16 SHEET BALSA TOP-BOlTOM WING CENTER SECTION ONLY 1/4 BALSA AILERON T ESTOCK I/4X 3/B BALSA REAR SPAR EXTEND INTO CENTER SEC 3/32 BALSA GUSSETS STIFFEN TE 11F /4 CDBALSA C C 01/32 PLYWOJO FUSECOWL DOUBLER FIAOFBMOUNiS I1/8 PLYVJOO MAIN SPAR F 11/4 BALSA3/32 SHEET BALSAJOINER AT C/L ThRU 4 BAiS FUSELAGE COVERING I/B MWIRE GEAR SANDWICHED3 1/4 MAIN IN TRIPLED I/B PLYWOOD N 3WHEELS 2 I/2NOSEWHEELON V8M WIRE I/B PLYWOOD MAIN SPAR REINFORCING THRU 5 RIB BAYS OPTIONAL I/B PLYWcOD LEDGE REINFOICING TI-IRU 5 RIB BAYS AT WING BUrr SOLID BALSA TIPS 7 1/16 BALSA WEBS BEHIND SPARS 3/BtX 1/2 BALSA L EDGE STOCK I/B X 1/4 SPRUCE SPARS UPPER AND LOWER BRACE I SERVO PLATEMOTOR CONTRA CAPLE3/B LIt BALSA LEAGPLG CAGE BRACE I/TA SHEET THE BOTTOM Er SHEET CR1 RHYTEWI LE cENTER CE GETER 1IIXIIiiiL OJEGOARD WINO HHTER REHiRED ALL AIWONAL BRACES ARE VA PLC IIII \II ii \III 51Lii I1K J II K vASPt IRE PIT BRACE III I/ -7 CR PLY hAl -_ Al~I} WAWINGASWAjAHTjARAS /1 CIA CEOTICAL ACES BET5132HINGE ALL MRSRGISAlA lAB CR SlEET BOTTOM ONLY3/32 /GUSSEEG- AC GE N GOWN 7 E -ALEHON STASH ElRIA-IAlAl-APIWIVIA SHEET TOE N BOTTOMII ________II 0 N3 RIGHT BOOM GAIT RAW AR GRASS TIREI CS SHETSTABILIZER ELEVI/I SHET OTHINO OSGAIT ROOM OSd COCA CAIASOCLECIS I/I SO STRINGERSRJGOC TYMEAGEC NORTHROP P-61 BLACK WIDOW DEsIERED ORAWIN BY FRANK B BAKER ThAONG er DEMARcOALAEB around result rather large model engine size flies perfectly Due its size biggest enemy weight choose wood carefully sand wood much dare Construction airframe construction straightforward control system plumbers nightmare Once decided put servos fuselage die cast unique solution actuating rudders elevators employed nylon tubing flexible metal cable inside stuff usually used motor control sold bulk Hobby Lobby HLH 805 allowed bend tubing various ways reach desired locations also meant once installed would never seen again end result control system smooth functions per fectly yet can easily adjusted trim purposes side effect need partially build wing booms order route control tubing may seem rather formidable actually goes together logically easily have partitioned construction series stages should help doing right thing right time Build framework two inner wing panels joining tbem center using R plywood dihedral braces paying particular atten tion locating top inboard Sheet whole bottom wing inch top trailing edge Roughly shape lead ing edge wing set assembly aside Cut out ood firewalls drill Kraft KM-IS engine mounts install blind nuts Use pattern provided construct two fuel tanks K-S 254 Easy-Solder tin dream work Before closing up tanks 28 Model Aviation Ply plate provides exit point controi caoies romeo snrougn wing Cable guides must routed carefully avoid slop Wing bOom assembly shows aileron cable routing Note gas pipes FULL-SIZE PLANS AVAILABLE . SEE PAGE 140 ALL WING RIBS ARE 3/32 BALSA 14 REGAINED W-lW-2W-3W-A a---LI W-HW-7W-B 2 BEGS BANG FOWARO VB MUSIC WIRE I/B MUSIC WINE MAIN LANSING SEAR ______________ NOSE NEAR BALSA I/B BALSA N-N N -3 3 BEGS LU CUTOUTN-AN-6 IN CENTtR I3/32 BALSA /8 LITE PLY3/32 BALSA3A6 BALSA F-9ARIBF-OA SBHATCH F-IF-HABALSAIOUVNBALGAFII FA-3/35 BALSA F-3 I/B BULSAF-BF-BF-ISS/ID BALSA F-3BF-A 3/IC BALSA IGREM PLYI I/A BALSABALL HALESI/B I/A FON NONE3/32 LGA GEAR MOUNTI/A GAI/A BALSA3/32 BALSACS-S BALSA SOWELCONTROL CABLE SHEETV4 SHEET3/32 SHEET I/B I/HBLOCKSCKT AT F-B BALSA BLOCK-HATCH */s $-n UNEr -- /ICSS/ IF-lASH F-IlFOAM BLOCK BALSA--L -hISI B B 3 INCINENFE IF-AFHAi=-Th-I3AI II,V. ELEKAlII II F-I1F-3F-H1 O -/II SIIIII II II SIGEBYRBEI I/35PLYSOIWIIII II I1F3B3/35FLOCK OAOI BEOVOYNBE I\- TO F-B IIII F-I IFS/ IIII F-IS 2 ---- IR STRINGER F-S-ZJL5IAO I/B3/35 SHEET 3/35BALSA TRINGERSFANELANE SCES0 5 3 5 H 5/16 BALSA______________ MARE RGHT B LEFT VENTS FACE INBOA USE B N SSSA TIN MEET NORTHROP P-6l BLACK DOW DESIGNED & DRAWN BY FRANK B BAKER TRACING BY OE DEMARCO SHEET 2 install filler vents fuel pickup tube Sure make right left tank filler vents always face inboard fuel pickup location varies depending upon whether right left tank Drill /B-in hole fuel tube 1/16-in hole motor control cable firewall Push fuel tube gas tank through hole firewall roughly align tank back firewall Cut six landing gear mounting plates B Sig Lite Ply Bend main landing gear LB-in music wire Use epoxy assemble right left sandwich landing gear middle layer sure wheel axle faces inboard both assemblies Decide boom will left will right Construct booms mounting tirewallincludingthe tank formerson 4 square stringers Make sure holes control cables inside boom Horizontal vertical lines boom formers will help make straight booms particularly careful make sure firewalls zero degrees both vertically horizontally relative center line booms Check again tank vents wheel axles face inboard Once basic boom constructed sheet lower two-thirds 3/32 balsa will find single 3-in sheet can used nver full length boom Soak sheet balsa water containing some household ammonia will bend shape need Pica Gluit does nice job gluing damp sheets frame work N-5 N-8 cover top one-third tail boom Cut three 36-in lengths nylon control cable tubing string control tubes through holes formers Leave about 3 extending beyond N8 rear Install flexible cable tubing motor control through firewall N-2 Put small amount silicone sealer around-each tube keep slipping Now comes important part Place booms under wing mark rudder elevator control tubes touch top sheeting Cut slots cables can pass through Mark motor control tube enters bottom wing cut hole pass through Now pin booms wings after pulling control cables through holes Check see booms parallel both horizontally vertically process may require some cutting trimming booms get good fit alignment Finally use Robart incidence meter measure wing 3 degrees incidence booms February 1982 29 W-5 N-IBAD r p \ 1 I/A PLYVB BALSA N- N-8 B BALSABALSA OS Max 10 FSHs provide plenty power KraftHayes 15 mounts used Note elevator control cable routing along inside edge vertical f zero degrees correct glue booms bottom wing Route rudder elevator motor control tubes through wing ribs shown plans sharp piece brass tubing small round file can used make holes ribs Make 1/16 plywood cable plate route rudder elevator tubes through glue wing Run flexible metal cables through nylon tubing just make sure turns too tight Remove cables set whole assembly aside Build both outer wing panels install strip ailerons Install nylon tubes aileron control lines leaving enough reach center wing Teed control tubes through holes inner panel wing ribs glue outer panels dihedral braces protruding inboard panels Trim aileron fubes center per plans Feed flexible cable left aileron until about 3 comes out right aileron cut off left aileron about 3 showing Hobby Lobby bulk pack pays off need near full-span continuous length cable Install / 16 plywood servo mounting plate Tack-mount servo using mounting tape Solder Z-shaped 1/16-in music wire coupler flexible cable Check see servo can travel its full range Finish sheeting top booms top inner panels wings sure put 1/16 balsa extends lower wing sheeting outer panels provides place anchor wing covering hard part behind us now fuselage sides have 1/32 plywood doublers front half glued place contact cement Construct fuselage using normal procedures Note servo rails installed servos low front end Install favorite steerable nose wheel gear before sheet belly fuselage Note part fuselage above wing built separately Pin completed fuselage wing check alignment horizontal center line fuselage should match booms may have trim bit get everything aligned Glue fuselage bottom wing part fuselage above wing constructed nexL Build whole upper fuselage unit right wing lower fuselage Mark double former occurs rear hatch separation line tack glue formers ahead line either wing fuselage Glue foam block rear cone fuselage Carve sand whole fuselage shape Use razorsaw cut through rear hatch line forward hatch line pry hatch off used Goldberg cowl clips hold forward hatch did show plans hard install Ill leave hatch hold-down usual method Cut fins rudders Out soft sheet install hinges control arms Note both control arms face inboard Glue rudders booms use some foam blocks fair fins booms Add lower fins Now measure distance between vertical fins went well distance should match plans case cut stabilizer/elevator Out soft 14 sheet balsa measured distance Install hinges control horn glue place sure check stabilizer zero degrees relative center line boom Hnal control hookup Install lower plywood cable support plate fuselage Mount aileron servo have taken out Feed rudder elevator motor control nylon tubes through s plywood upper cable support plate use two screws attach lower plate Use some silicone sealer hold tubes place dry trim tubes about 1z ahead plate Run flexible metal cables through rudder elevator tubes leaving about 2 surface end enough reach F-7 fuselage end Solder threaded brass couplers HLH 809 cables Install nylon Kwik-Links middle threaded part clip control horn Trim away nylon tube until full control movement achieved Install rudder elevator motor servos servo tray mount unit servo rails Pin rudders neutral slip Du-Bro solder links flexible cable clip onto servo arms Trim excess cable solder links place Run both motor control cables through 1/16-in nylon tubes until F-7 reached about 2 protrudes beyond firewall Mount solder link motor control servo feed both cables Cut off excess cable solder link cables aileron end cables install threaded brass couplers have trimmed about l1 both threaded non-threaded ends Put aileron servo neutral trim cables until ailerons neutral everything fits control links snapped control horns solder couplers cables Finally run short piece tubing cable rudder servo nose gear install solder link end sure fasten tubing securely fuselage Install radio battery pack fuselage connect servos Set hatch down fuselage see hits things Use knife Dremel tool start carving away inside hatch i x 4 spruce stringer will need drastically cut away Keep carving until hatch fits Turn radio cycle controls Carve hatch until servos move full range hitting hatch cowls built using familiar balloon method Glue up some pine redwood turn down forms wood lathe Make forms about 12 longer cowls rear cowl can cut evenly Once cowls fabricated cut holes engine exhaust needle valve remembering right left Glue cowl supports firewall mount engines fit cowls Finish hooking up motor control cables linkages Use -in pan-head screws hold cowls supports whole model covered iron-on black Mylar film used EconoKote other brands also will nicely front booms landing gear forward sealed polyester resin painted black Pactra Formula U P-6 highly decorated except some white stars much trim add Flying P61 relatively large model small engines must treated respect during takeoff climb-out make easy possible wing has lot incidence nose gear adds nose-up stance intended get model airborne easily Typically taxi out wind hit full throttle let roll until appears light gear slight amount up elevator will cause lift-off Once air.keep shallow angle climb until speed builds up air P-6 relatively fast quite aerobatic does very nice loop will roll easily Don t roll too Continued page 110 30 Model Aviation heavy work done Select light wood center tail booms other sheeted areas save weight wherever can LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW MBSW6 b3ISVV4MASTER IMPROVED THROUGH FOUR YEARS OF PRODUCTION THE G/F SERIES IS UNEQUALED FOR PERFORMANCE & DURABILITY AVAILABLE WORLDWIDE THROUGH 131 DISTRIBUTORS WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 lASTER AIIISCiIIW PRESENTS BALSA STRIPPER 495 AT YOUR DEALER PRECISION STRIP WOOD TO INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO PO BOX 112 WINDSOR CA 95492 CANTON MODEL PRODUCTS Presents Dip Stick FAST QUICK / EASY TO FINISH D540 55 SPAN 560 SQ IN WING LOADING 165-20 OZ 29-45 ENGINE 43 LENGTH 3 OR 4 CHANNEL PRICE 4995 ADD 4 SHIPPING CHARGE DS 60 641/2 SPAN 672 SQ IN WING LOADING 20-22 OZ 46-60 ENGINE 48 LENGTH 3 OR 4 CHANNEL PRICE 5995 EXTREMELYADD 6 SHIPPING RUGGED TRAINER CHARGE WITH SYMMETRICAL AIRFOIL FOR AEROBATIC FLYING HIGHLY PRE-FABRICATED KIT INCLUDES PRE-SHEETED BALSA FOAM WINGS PRE-BUILT JIG ASSEMBLED WOOD FUSELAGE PRE-SHAPE BALSA TAIL ASSEMBLY PRE-FORMED LANDING GEAR TAIL WHEEL AND AILERON WIRES INSTRUCTION SHEET WITH FULLY ILLUSTRATED ASSEMBLY DRAWINGS tow P ceo Cannot 0 SCOUR Doale s Black Widow/Baker Continued page 30 slowly fixed fuel pick-ups will starve engine slow roll Black Widow dream touch-andgoes Use wide pattern set up long final approach lowest throttle does want lose altitude final approach model assumes rather flat attitude can held right down ground Application full throttle results immediate return air Frequency Scanner/Lange Continued page 39 wish use RC transmitter check accuracy signal generator coupling L6 L5 tuning [5 should checked peak curve amplitude con sistent good oscillator starting have made some sensitivity tests several converters signal generator calibrated output could usually detect 01 RG58/u RG59AJ large wheels landings grass field have no-bounce greasers Singleengine performance excellent allows plenty time set up normal landing approach ailerons sufficient handle singleengine situations rudders very effec tive want use Despite its size small engines P-6 handles like trainer docile has no hidden faults waiting bite goes point Best does great deal realism microvolt signals three microvolt sig nals boomed through loud clear Consid ering RC receivers rated two three microvolts sensitivity thats quite ac ceptable best results obtained using a3- 5-ft extended whip antenna 4 6 meters usually can hear RC fliers transmitter two four miles field over flat terrain car engine turned off Sources Crystals JAN Crystals 2400 Crystal Dr PO Box I12v conte-jr scope vert hor ground generator scope converter aluminum copper sheet bench 110 Model Aviation BANDPASS ALIGNMENT WITH SWEEP GENERATOR AND SCOPE 00 VHF sweep marker gen RF sweep out out tO ORDER SEND BANK CHECK OR MONEY ORDER TO CANTON MODEL PRODUCTS PO BOX 6063 CANTON OHIO 44706 OR CALL 216 4541539 FOR IMMEDIATE COD SHIPMENT