Fokker D.VIII

FOUR nitely thu theOs- ea i talr fOurh nile thi beenDfdru specifically kind rque NO OCR TEXT Left maintain properCG battery packand servos right behind firewall battery pack located directly beiowthe servos Right Traysfor servos fuel tank shown fuel tank held place bya rubberband foam packing below front back Left Sig engine mount used Magnum 91 exhaust valve pointing downward hydro-locking has prob lem Right An Edson mount used forthe 05 FS 90 75 engines conjunction spacerto get prop right location Left Wing attached cabane struts 1/420 nylon bolts Authors stress tests proved extremely strong method Right Landing gear wing struts held place same 1/420 nylon bolts Collars rear struts allow wing incidence changes Construction model straight-faces model however couldbalsa ribs balsa sheeting unsure forward no exotic non-standardbuild components orderof much load -20 nylon wing materials being used prefer build thebolts hold-down blocks could take sol wing first fuselage tail sur-The wing has spruce spars Lite Ply andconducted experiment prior designing 24 Model Aviation wing mounting arrangement inserted threaded Wing Mfg metal insert hold-down block glued block ceiingjoist basement drilled %2-in hole through middle 1 x 2 x 10-in wood handle bolted handle hold-down block using Du-Bro 4-20 wing bolt Next kids hang handle one find out what point bolt hold-down would fail started Jayme 50 lb Jeannie 100 lb Barbie 120 lb finally Karl 135 lb No failure occurred hung handle myself surprise bolt hold-down did fail though applied full 170 lb test proved method attaching wing adequate As approximation ifjust front two wing hold-down assemblies took full load model weighed 10 lb wing attachment system could withstand positive load 34 Gs Thats far airplane will ever need Components will assembled directly over plan should protected sheet wax paper before beginning construction Start cutting out ribs sanding final size Install Wing Mfg hold-down insert hardwood blocks carve out strut grooves Cut spars length bevel outer ends top spars Cut leading edge LE trailing edge TE sheeting length maldng sure top sheeting extends tip plate Mark cut out front mounting block aileron horn plate bottom sheeting glue place Glue bottom sheeting cap strips together over plan followed gluing bottom spars ribs position Place 4-in-high 4-in-wide shim under sheeting cap strip R4 weight down assembly between R7 R8 finished top wing should straight Glue top spars shear webs Ri through R8including ex tension shear web center section serve brace joining February 1986 25 Len Witn Transparent MonoKate covering internal structure can Inspected perlodlcallyfor possible failure ordamage Tali surfaces removabie transportation storage Right Diagonai braces greatiy increase fuseiages rigidity keeping rear end light consequently no nose weight required tall moment long wouldnt case sheetina used Vortac bomb release system adds extra touch realism fun Author reports has found accurate bombing difficult originally anticipated I cabane strut locatIons closely follow -lizegear cross braces provide just right amount spring action sonen rougn lanaings foam wing Sullivan cables run tothe aileron horns built-up wing hasfi bergiass pushrods belicranks instead wing halves together Glue full-span n balsa strip onto top spar Position Ys x 34-in aileron leading edge pieces mark saw proper height Glue forward aileron LE bottom sheeting rear spars Cut through bottom sheeting RiO R14 leave several spots uncut aileron still attached Position glue RlOa Rl4a bottom sheeting same -in-wide LE between two sub-ribs Proceed small ends Ri 1 Ri 2 Ri 3 glue bottom sheeting Position glue li-in pieces between Ri R2 R3 leading edge next mark carve shape installation wing assembly Remove wing plans glue bottom LE sheeting along LE front portion ribs Trim bottom LE sheeting sand top LE wing sure properly contour both leading edge balsa strip top main spar Mark cut out aileron hinge slots 26 Model Aviation Although shown plans balsacovered foam wing originally built prototype model mlghtwantto take route yourself foam wing fine aerodynamically built-up wing thoughtto far attractive partic ularly use transparent covering Out morning sky Baron Von Crashenbach ou rauthor dives make anotheretrafing run Allied ground troops As usual single bomb landed farfrom its intended target Hatch bottom wing buiii var sions allows easyaccesstothe aileron servo linkage hole hatch provides convenient exit running servo wire Plywood balsa fiberglass used cowl mounts fuselage four constructing cowl bottom side 4-40 socket-head screws Uppertwo screws open fashion full-scale aircraft accessible through cowls air holes inverting engine particular aircraft proper cooling maintained ana oily exhaust directed models bottom minimizing time takes cleanup DESIGNED BY JAMES GILGENBACH 7 3/8 I/4x 1/4 3/8xI-I/2 1/16 BALSA DIA MUSIC WIRE N N l/4x 3/8- 6 OZ FIBERGLASS CLOTH B KN NN N K1/16 N N%I/16xI/4 N 32 SHEETNN 1/8 BALSAN / N 1/8 LITE PLY N /N I/ PLYN 1/4 PLY 5/32 DIA MUSIC WIRE/ I/4x a VINT WHEELS 3/8x 1/2 N 3/8 I/4 x 1/4 MAGNUM 91 4 CYCLE ENGINE /4 N N N NK N N XV N Glue top LE TE sheeting trim LE sheeting Add top sheeting wingtip cut sand itto suit tip plate glue tip plate Finish cutting out aileron carve sand its LE shape Glue aileron linkage hatch floor make linkage hatch support bracket Drill four hatch mounting holes through hatch floor drill two horn mounting holes aileron Attach aileron bellcrank assembly hatch support bracket glue support bracket Attach aileron wing hinges attach control horn hookup linkage rod bellcrank Check see free movement aileron through linkages completes half wing Repeat steps build other half join halves together Add remaining center section braces aileron servo hatch floor Make aileron servo hatch position hatch floor drill two mounting holes complete wings construction add center section top sheeting remaining cap strips Install aileron servo remaining linkage check assure action proper Remove servo linkage finish-sand wing put wing aside safe place avoid hangar rash until ready cover Fuselage tedious part involves cutting/fitting diagonal braces between longerons aft cockpit area could constructed easily 3/n sheet balsa beautiful see-through vintage look would lost achieve proper alignment fuse lage built upside down directly over wax-paper-covered plans Begin cutting out plywood parts sanding finish size Drill holes firewall top hatch mount mounting plate tail surfaces install blind nuts Cut spruce longerons balsa cross braces length finishsand Glue thick cyanoacrylate CyAworks great gluing re quired longerons Lite Ply dou blers Make sure build both right- left-hand fuselage sides / CI c2 C3 CUT OUT FOR STRUT COLLAR 4 REGUIRED AIRTRON PACK NO 95003 7/_ SD-IN FUEL TANK 7-ABATTERY 5 FUEL TANK TRAY FWI \$ _ EJF IRTRDNICS 03CHANGING2 6JACK TI 5K4 II0 FINELAGE DOUBLER OUTLINE --\I II _$7 WINDSNIELD WRAP WON COPPER WING AND SILVER SOLDERII/32DRLL 732 PLACES FCR IMEEL MSOI NOD GLUE INNER MJWW 5I2395KIN PLACE Position doubler assemblies upside down plan glue F2 F3 between use steel squaring blocks align formers properly directions Add remaining formers cross braces carefully working front fuselage back Put longerons together back fuselage glue rear vertical post Cut fit plywood Lite Ply bottom fuselage Drill holes fuel vent switch charging jacks bomb release glue bottom pieces mounting plates tail surfaces Cut fit glue diagonal braces rear portion fuselage Glue plywood Left Position bottom wing sheeting cap strips main spar overthe plans covered wax paper tape place shown Right Ribs secondary spars instaiied using squaring biock foraiignment Make sure dont glue hoiddown tape structure 28 Model Aviation I____________ DOlE FUSELAGE REMOVED FOR CLARITY V4-DD TAP TRWJ 14 REOUIREDI R Full-Size Plans Available. See Page 164 FUSELAGE TOP VIEW 210 Z22 IJWING STRUT PATTERNS NO 94554 TYCAL 654cR Cs riiiivrRE E ER NO 923 2 SERVO B RECEIVER TRAY ____________________5 /0 2179FW2 F -2-------~4 REND WASNER IJp~ ii0 RETARIIL EAR STRIJT3-RIGRT B LEFT Fl FUSE LAGE SIDE VIEW LEFT NOR NOJELER WAD 54EETWG7R 2 F2 2 F3 I 0 Il Kr Fl 0 15 \\ \ RUDDER 4/ /1 6-S SHEET OF 2 MODEL AVIATION FOKKER DIIL DESIGNED B DRAWN BY JAMES GILGENBACH TRACING BY JOE DEMARCO WEE RIGHTS RESERVEII tail wheel mount Yn sheeting rear Remove fuselage plans glue landing gear mounts drill tap holes nylon landing gear bolts Glue F 1 cockpit floor remaining top formers stringers sheet ing cut out sheeting cockpit Complete section adding side formers stringers sheeting Build fit top hatch locate glue its mount place Install -in plastic servo wire tube hatch form lip bottom end tube press end squarely onto hot plate heated frying pan Fuel-proof servo tray fuel tank tray inside portion fuselage exposed hatch Left Remove wing plans Bend bottom leading edge sheeting up glue leading edge Trim flush top sur face leading edge Right Wing hold-downs nested between two Lite Ply ribs Center sheeting extends bay outboard February 1986 29 NI removed Install trays servos fuel tank Mount engine install throttle servo linkage check proper operation Remove items finishsanding fuselage done put aside completed wing out harms way Tail Surfaces Build horizontal stabil izer elevators fin rudder directly over plans Note TE elevator must shimmed up symmetrical shape Once constructed finish-sand components Install tail wheel assembly hinges horns dont glue yet Assemble tail surfaces fuselage making sure fit proper however glue fin stabilizer just yet instead use masking tape T-pins hold place tail surfaces designed removed taking out two 440 bolts loosening two setscrews lower rudder necessary cut down two Robart hinges slide freely out Yn-in OD brass tubes Also drill hole %2-in tubes allow setscrews tighten down onto hinges themselves crushing tubes Install radio gear rudder elevator pushrods Operate controls assure no binding occurs position pushrod supports up F5 screw place Check controls again make sure still operate smoothly everything working properly disassem ble components set aside Wire pieces wing struts made -in music wire wheel collars used final adjustment Care must taken form struts accurately Other wise will very difficult obtain proper wing alignment Note left right side struts alike landing gear made 5A2-in music wire wrapped copper wire silver soldered recommend use Breiten wire bender similar form struts landing gear cowl made building up ply wood balsa Styrofoam frame fibergiassing outside First glue %2 sheet balsa -in balsa blocks between C2 C3 Cut out 2-in-thick niece Styrofoam form DESaRPTHOR41 _ _ ________ L ____ ____________________________________________ ___ 2 REQ STABILIZER _ r e outside shape C2 tack-glue 6-oz fiberglass cloth Workout C2 Also glue Cl Styrofoam Sand air bubbles set cowl aside to desired shape 60-grit dry sand- cure paper When epoxy has cured trim off Mix batch Hobbypoxy 2 brush excess fiberglass Rough-sand struc onto outside cowl plug cover ture being careful sand through STRUT OOVE rRAY U_ 5 ____ _________ _______j VATOR HR Left Wing holddown blocks mounted flush bottom sheeting blocks have grooves cabane strut wires will rest Right Joining wing halves together spruce strips main spar assures strong center section finished top wing straight no dihedral top wing surface Control rods fiberglass fishing rod typevery light strong 30 Model Aviation Full-Size Plans Available. See Page 164 EETRIG GdIflEO 2.ARITy 5 II W2a is________ 13 IS F4 H-H is F6 II SI PORTIONThis FY77777~ - RII PORTION FROU 71LjR N R2 __ -j 1dfr1i ______4 EQ13EQ ___ ____3 ROlOHES ALERON A1134 12_____2 REQ2REO isRS_____2 REQ 2 REQ_ ORESAl ERON SERVO PATOR II REQ ____/7 0__ __ S20// lOa iI _______ 4 RIGHT SisE 4 CABANE STRUT\ ____/ I2R12_____OREQO y I2RISz2 REQ LIW 2c flF LANDING GEAR STRUTS 4 F lb REQO V MODEL AVIATION FOKKER D DESIGNED S DRAWN BY DAMES GIWENBACH TRACING BY JE DEMANCO ALL RIGHTS RESFIWS fiberglass Mix up batch two parts microballoons part Hobbypoxy 2 apply fiberglass second coat has cured cut out openings sand cowl its finished size dig scrape out Styrofoam outside cowl complete point inside must treated similar manner added strength mix up another batch Hobbypoxy 2 brush onto inside cowl Add layer 6-oz fiberglass cloth inside between Cl C2 done outside After curing check make sure cowl fits properly fuselage does interfere engine throttle linkage Assembly misaligned aircraft will never fly properly jammed control can easily cause crash Before covering painting therefore recommend install componentsincluding radio engine landing gearand coinFebruary 1986 31 Left room foreven much largeralleron servo butanyser vo over 45 oz/ln torque adequate Author has used both Airtronlcs 94394 99554 servos good success Above Aileron belicrankaccess possible use bali link end control rod conjunction removable Lite Ply hatch Two nylon belicranks bolted togetherto increase stiffness thereby eliminate aileron fiutterand spongyness ailerons hinged just below topwing sheeting pletely assemble aircraft Make sure alignments correct no warps controls operate properly interference binding Extra effort applied point will pay itself satisfaction later Covering finishing basically mat ter personal preference Some old-timers would say sin finish aircraft anything silk dope However old-timer has fill breathing dope fumes smelling up house Because Fokker intended true scale recommend following Disassemble aircraft finish-sand parts 220-grit paper Prime color cowl epoxy paint greatest durability Cover remainder aircraft iron-on film fabric looks great transparent MonoKote Trimming flying After covering finishing reassemble plane check out controls sure function properly elevator should have 1 up-travel l/16 down ailerons should have /16 up 13/16 down rudder should have 1 travel left right Make sure center gravity GO within designated range throttle should set up fully stop engine stick trim fully back Attaining settings piece cake Airtronics CS7P radio has end point adjustment elevator ailerons total throw adjustment rudder throttle retracts also has Left scale aileron provides ample control After wing tip plate Installed tip can sanded smooth well-defined edge Right Install servo tray afterfitting servos Author recommends Hobbypoxy 2 coatIng forthe entire area exposed bythe hatch 32 Model Aviation Before installing thewingtip plate sandthe plywood wing tip plate minimizes damage tip sheeting spars correct angle dings overall weight great conthen bevel tip rib accept tip plate cern1 /16 balsa could substituted ply Turtleback prototype model stringer plans show three Improved appearance Note mounting plate threaded inserts securing tall surfaces servo reversing channels probably greatest invention since sliced bread addition has aileron/rudder coupling feature allows electronic mixing rudder ailerons make coordinated turns effortlessly amount throw rudder being coupled ailerons can adjusted sepa rately used retract channel oper ating bomb release subject radios very important component cannot over looked servo properly control large aircraft Quarter Scale range strong powerful servos required oontrol surfaces Fokker DVIII servos least 45 oz/in torque should used originally installed No 94394 standard Airtronics servos 48 oz/in torque performed very well However being conservative nature somewhat perfectionistic later installed No 99554 Airtronics coreless ball bearing heavy duty servos elevator rudder ailerons servos have whop ping 735 oz/in torque far smoothest servos have seen have installed receiver antenna wire inside fuselage encased outer portion Gold-n-Rod running radio compartment back taila very clean installation hesitate recommend everyone however know other brands radio will function properly arrangement assure safe rewarding first flight recommend become familiar operation four-cycle engine Run test stand until performs well idle mid-range top speed mount engine Fokker test runs reliably ground Dont expect erratic running clear up once its air wont recommended prop size 60 four-cycle 14-in diameter 5-in pitch 75 14-6 90 15-6 After flying Fokker season OS FS75 05 FS9O installed Magnum 91 Pearson Power Prod ucts Magnum performed quite well semi-inverted position after broken-in properly As final testimonial integrity aircraft can state unequivocally after two seasons flying approximately 100 flights have yet damage way has new record February 1986 33 Tall surfaces quite large prooaoiy accounting forthe planes fine flight characteristics Glue fin/dorsal stab after covering bothwith stab mounted fuselage hardware components required forthe DVIII Awell-defined bill materials listed construction plans Everything should available local hobbyshop

FOUR nitely thu theOs- ea i talr fOurh nile thi beenDfdru specifically kind rque NO OCR TEXT Left maintain properCG battery packand servos right behind firewall battery pack located directly beiowthe servos Right Traysfor servos fuel tank shown fuel tank held place bya rubberband foam packing below front back Left Sig engine mount used Magnum 91 exhaust valve pointing downward hydro-locking has prob lem Right An Edson mount used forthe 05 FS 90 75 engines conjunction spacerto get prop right location Left Wing attached cabane struts 1/420 nylon bolts Authors stress tests proved extremely strong method Right Landing gear wing struts held place same 1/420 nylon bolts Collars rear struts allow wing incidence changes Construction model straight-faces model however couldbalsa ribs balsa sheeting unsure forward no exotic non-standardbuild components orderof much load -20 nylon wing materials being used prefer build thebolts hold-down blocks could take sol wing first fuselage tail sur-The wing has spruce spars Lite Ply andconducted experiment prior designing 24 Model Aviation wing mounting arrangement inserted threaded Wing Mfg metal insert hold-down block glued block ceiingjoist basement drilled %2-in hole through middle 1 x 2 x 10-in wood handle bolted handle hold-down block using Du-Bro 4-20 wing bolt Next kids hang handle one find out what point bolt hold-down would fail started Jayme 50 lb Jeannie 100 lb Barbie 120 lb finally Karl 135 lb No failure occurred hung handle myself surprise bolt hold-down did fail though applied full 170 lb test proved method attaching wing adequate As approximation ifjust front two wing hold-down assemblies took full load model weighed 10 lb wing attachment system could withstand positive load 34 Gs Thats far airplane will ever need Components will assembled directly over plan should protected sheet wax paper before beginning construction Start cutting out ribs sanding final size Install Wing Mfg hold-down insert hardwood blocks carve out strut grooves Cut spars length bevel outer ends top spars Cut leading edge LE trailing edge TE sheeting length maldng sure top sheeting extends tip plate Mark cut out front mounting block aileron horn plate bottom sheeting glue place Glue bottom sheeting cap strips together over plan followed gluing bottom spars ribs position Place 4-in-high 4-in-wide shim under sheeting cap strip R4 weight down assembly between R7 R8 finished top wing should straight Glue top spars shear webs Ri through R8including ex tension shear web center section serve brace joining February 1986 25 Len Witn Transparent MonoKate covering internal structure can Inspected perlodlcallyfor possible failure ordamage Tali surfaces removabie transportation storage Right Diagonai braces greatiy increase fuseiages rigidity keeping rear end light consequently no nose weight required tall moment long wouldnt case sheetina used Vortac bomb release system adds extra touch realism fun Author reports has found accurate bombing difficult originally anticipated I cabane strut locatIons closely follow -lizegear cross braces provide just right amount spring action sonen rougn lanaings foam wing Sullivan cables run tothe aileron horns built-up wing hasfi bergiass pushrods belicranks instead wing halves together Glue full-span n balsa strip onto top spar Position Ys x 34-in aileron leading edge pieces mark saw proper height Glue forward aileron LE bottom sheeting rear spars Cut through bottom sheeting RiO R14 leave several spots uncut aileron still attached Position glue RlOa Rl4a bottom sheeting same -in-wide LE between two sub-ribs Proceed small ends Ri 1 Ri 2 Ri 3 glue bottom sheeting Position glue li-in pieces between Ri R2 R3 leading edge next mark carve shape installation wing assembly Remove wing plans glue bottom LE sheeting along LE front portion ribs Trim bottom LE sheeting sand top LE wing sure properly contour both leading edge balsa strip top main spar Mark cut out aileron hinge slots 26 Model Aviation Although shown plans balsacovered foam wing originally built prototype model mlghtwantto take route yourself foam wing fine aerodynamically built-up wing thoughtto far attractive partic ularly use transparent covering Out morning sky Baron Von Crashenbach ou rauthor dives make anotheretrafing run Allied ground troops As usual single bomb landed farfrom its intended target Hatch bottom wing buiii var sions allows easyaccesstothe aileron servo linkage hole hatch provides convenient exit running servo wire Plywood balsa fiberglass used cowl mounts fuselage four constructing cowl bottom side 4-40 socket-head screws Uppertwo screws open fashion full-scale aircraft accessible through cowls air holes inverting engine particular aircraft proper cooling maintained ana oily exhaust directed models bottom minimizing time takes cleanup DESIGNED BY JAMES GILGENBACH 7 3/8 I/4x 1/4 3/8xI-I/2 1/16 BALSA DIA MUSIC WIRE N N l/4x 3/8- 6 OZ FIBERGLASS CLOTH B KN NN N K1/16 N N%I/16xI/4 N 32 SHEETNN 1/8 BALSAN / N 1/8 LITE PLY N /N I/ PLYN 1/4 PLY 5/32 DIA MUSIC WIRE/ I/4x a VINT WHEELS 3/8x 1/2 N 3/8 I/4 x 1/4 MAGNUM 91 4 CYCLE ENGINE /4 N N N NK N N XV N Glue top LE TE sheeting trim LE sheeting Add top sheeting wingtip cut sand itto suit tip plate glue tip plate Finish cutting out aileron carve sand its LE shape Glue aileron linkage hatch floor make linkage hatch support bracket Drill four hatch mounting holes through hatch floor drill two horn mounting holes aileron Attach aileron bellcrank assembly hatch support bracket glue support bracket Attach aileron wing hinges attach control horn hookup linkage rod bellcrank Check see free movement aileron through linkages completes half wing Repeat steps build other half join halves together Add remaining center section braces aileron servo hatch floor Make aileron servo hatch position hatch floor drill two mounting holes complete wings construction add center section top sheeting remaining cap strips Install aileron servo remaining linkage check assure action proper Remove servo linkage finish-sand wing put wing aside safe place avoid hangar rash until ready cover Fuselage tedious part involves cutting/fitting diagonal braces between longerons aft cockpit area could constructed easily 3/n sheet balsa beautiful see-through vintage look would lost achieve proper alignment fuse lage built upside down directly over wax-paper-covered plans Begin cutting out plywood parts sanding finish size Drill holes firewall top hatch mount mounting plate tail surfaces install blind nuts Cut spruce longerons balsa cross braces length finishsand Glue thick cyanoacrylate CyAworks great gluing re quired longerons Lite Ply dou blers Make sure build both right- left-hand fuselage sides / CI c2 C3 CUT OUT FOR STRUT COLLAR 4 REGUIRED AIRTRON PACK NO 95003 7/_ SD-IN FUEL TANK 7-ABATTERY 5 FUEL TANK TRAY FWI \$ _ EJF IRTRDNICS 03CHANGING2 6JACK TI 5K4 II0 FINELAGE DOUBLER OUTLINE --\I II _$7 WINDSNIELD WRAP WON COPPER WING AND SILVER SOLDERII/32DRLL 732 PLACES FCR IMEEL MSOI NOD GLUE INNER MJWW 5I2395KIN PLACE Position doubler assemblies upside down plan glue F2 F3 between use steel squaring blocks align formers properly directions Add remaining formers cross braces carefully working front fuselage back Put longerons together back fuselage glue rear vertical post Cut fit plywood Lite Ply bottom fuselage Drill holes fuel vent switch charging jacks bomb release glue bottom pieces mounting plates tail surfaces Cut fit glue diagonal braces rear portion fuselage Glue plywood Left Position bottom wing sheeting cap strips main spar overthe plans covered wax paper tape place shown Right Ribs secondary spars instaiied using squaring biock foraiignment Make sure dont glue hoiddown tape structure 28 Model Aviation I____________ DOlE FUSELAGE REMOVED FOR CLARITY V4-DD TAP TRWJ 14 REOUIREDI R Full-Size Plans Available. See Page 164 FUSELAGE TOP VIEW 210 Z22 IJWING STRUT PATTERNS NO 94554 TYCAL 654cR Cs riiiivrRE E ER NO 923 2 SERVO B RECEIVER TRAY ____________________5 /0 2179FW2 F -2-------~4 REND WASNER IJp~ ii0 RETARIIL EAR STRIJT3-RIGRT B LEFT Fl FUSE LAGE SIDE VIEW LEFT NOR NOJELER WAD 54EETWG7R 2 F2 2 F3 I 0 Il Kr Fl 0 15 \\ \ RUDDER 4/ /1 6-S SHEET OF 2 MODEL AVIATION FOKKER DIIL DESIGNED B DRAWN BY JAMES GILGENBACH TRACING BY JOE DEMARCO WEE RIGHTS RESERVEII tail wheel mount Yn sheeting rear Remove fuselage plans glue landing gear mounts drill tap holes nylon landing gear bolts Glue F 1 cockpit floor remaining top formers stringers sheet ing cut out sheeting cockpit Complete section adding side formers stringers sheeting Build fit top hatch locate glue its mount place Install -in plastic servo wire tube hatch form lip bottom end tube press end squarely onto hot plate heated frying pan Fuel-proof servo tray fuel tank tray inside portion fuselage exposed hatch Left Remove wing plans Bend bottom leading edge sheeting up glue leading edge Trim flush top sur face leading edge Right Wing hold-downs nested between two Lite Ply ribs Center sheeting extends bay outboard February 1986 29 NI removed Install trays servos fuel tank Mount engine install throttle servo linkage check proper operation Remove items finishsanding fuselage done put aside completed wing out harms way Tail Surfaces Build horizontal stabil izer elevators fin rudder directly over plans Note TE elevator must shimmed up symmetrical shape Once constructed finish-sand components Install tail wheel assembly hinges horns dont glue yet Assemble tail surfaces fuselage making sure fit proper however glue fin stabilizer just yet instead use masking tape T-pins hold place tail surfaces designed removed taking out two 440 bolts loosening two setscrews lower rudder necessary cut down two Robart hinges slide freely out Yn-in OD brass tubes Also drill hole %2-in tubes allow setscrews tighten down onto hinges themselves crushing tubes Install radio gear rudder elevator pushrods Operate controls assure no binding occurs position pushrod supports up F5 screw place Check controls again make sure still operate smoothly everything working properly disassem ble components set aside Wire pieces wing struts made -in music wire wheel collars used final adjustment Care must taken form struts accurately Other wise will very difficult obtain proper wing alignment Note left right side struts alike landing gear made 5A2-in music wire wrapped copper wire silver soldered recommend use Breiten wire bender similar form struts landing gear cowl made building up ply wood balsa Styrofoam frame fibergiassing outside First glue %2 sheet balsa -in balsa blocks between C2 C3 Cut out 2-in-thick niece Styrofoam form DESaRPTHOR41 _ _ ________ L ____ ____________________________________________ ___ 2 REQ STABILIZER _ r e outside shape C2 tack-glue 6-oz fiberglass cloth Workout C2 Also glue Cl Styrofoam Sand air bubbles set cowl aside to desired shape 60-grit dry sand- cure paper When epoxy has cured trim off Mix batch Hobbypoxy 2 brush excess fiberglass Rough-sand struc onto outside cowl plug cover ture being careful sand through STRUT OOVE rRAY U_ 5 ____ _________ _______j VATOR HR Left Wing holddown blocks mounted flush bottom sheeting blocks have grooves cabane strut wires will rest Right Joining wing halves together spruce strips main spar assures strong center section finished top wing straight no dihedral top wing surface Control rods fiberglass fishing rod typevery light strong 30 Model Aviation Full-Size Plans Available. See Page 164 EETRIG GdIflEO 2.ARITy 5 II W2a is________ 13 IS F4 H-H is F6 II SI PORTIONThis FY77777~ - RII PORTION FROU 71LjR N R2 __ -j 1dfr1i ______4 EQ13EQ ___ ____3 ROlOHES ALERON A1134 12_____2 REQ2REO isRS_____2 REQ 2 REQ_ ORESAl ERON SERVO PATOR II REQ ____/7 0__ __ S20// lOa iI _______ 4 RIGHT SisE 4 CABANE STRUT\ ____/ I2R12_____OREQO y I2RISz2 REQ LIW 2c flF LANDING GEAR STRUTS 4 F lb REQO V MODEL AVIATION FOKKER D DESIGNED S DRAWN BY DAMES GIWENBACH TRACING BY JE DEMANCO ALL RIGHTS RESFIWS fiberglass Mix up batch two parts microballoons part Hobbypoxy 2 apply fiberglass second coat has cured cut out openings sand cowl its finished size dig scrape out Styrofoam outside cowl complete point inside must treated similar manner added strength mix up another batch Hobbypoxy 2 brush onto inside cowl Add layer 6-oz fiberglass cloth inside between Cl C2 done outside After curing check make sure cowl fits properly fuselage does interfere engine throttle linkage Assembly misaligned aircraft will never fly properly jammed control can easily cause crash Before covering painting therefore recommend install componentsincluding radio engine landing gearand coinFebruary 1986 31 Left room foreven much largeralleron servo butanyser vo over 45 oz/ln torque adequate Author has used both Airtronlcs 94394 99554 servos good success Above Aileron belicrankaccess possible use bali link end control rod conjunction removable Lite Ply hatch Two nylon belicranks bolted togetherto increase stiffness thereby eliminate aileron fiutterand spongyness ailerons hinged just below topwing sheeting pletely assemble aircraft Make sure alignments correct no warps controls operate properly interference binding Extra effort applied point will pay itself satisfaction later Covering finishing basically mat ter personal preference Some old-timers would say sin finish aircraft anything silk dope However old-timer has fill breathing dope fumes smelling up house Because Fokker intended true scale recommend following Disassemble aircraft finish-sand parts 220-grit paper Prime color cowl epoxy paint greatest durability Cover remainder aircraft iron-on film fabric looks great transparent MonoKote Trimming flying After covering finishing reassemble plane check out controls sure function properly elevator should have 1 up-travel l/16 down ailerons should have /16 up 13/16 down rudder should have 1 travel left right Make sure center gravity GO within designated range throttle should set up fully stop engine stick trim fully back Attaining settings piece cake Airtronics CS7P radio has end point adjustment elevator ailerons total throw adjustment rudder throttle retracts also has Left scale aileron provides ample control After wing tip plate Installed tip can sanded smooth well-defined edge Right Install servo tray afterfitting servos Author recommends Hobbypoxy 2 coatIng forthe entire area exposed bythe hatch 32 Model Aviation Before installing thewingtip plate sandthe plywood wing tip plate minimizes damage tip sheeting spars correct angle dings overall weight great conthen bevel tip rib accept tip plate cern1 /16 balsa could substituted ply Turtleback prototype model stringer plans show three Improved appearance Note mounting plate threaded inserts securing tall surfaces servo reversing channels probably greatest invention since sliced bread addition has aileron/rudder coupling feature allows electronic mixing rudder ailerons make coordinated turns effortlessly amount throw rudder being coupled ailerons can adjusted sepa rately used retract channel oper ating bomb release subject radios very important component cannot over looked servo properly control large aircraft Quarter Scale range strong powerful servos required oontrol surfaces Fokker DVIII servos least 45 oz/in torque should used originally installed No 94394 standard Airtronics servos 48 oz/in torque performed very well However being conservative nature somewhat perfectionistic later installed No 99554 Airtronics coreless ball bearing heavy duty servos elevator rudder ailerons servos have whop ping 735 oz/in torque far smoothest servos have seen have installed receiver antenna wire inside fuselage encased outer portion Gold-n-Rod running radio compartment back taila very clean installation hesitate recommend everyone however know other brands radio will function properly arrangement assure safe rewarding first flight recommend become familiar operation four-cycle engine Run test stand until performs well idle mid-range top speed mount engine Fokker test runs reliably ground Dont expect erratic running clear up once its air wont recommended prop size 60 four-cycle 14-in diameter 5-in pitch 75 14-6 90 15-6 After flying Fokker season OS FS75 05 FS9O installed Magnum 91 Pearson Power Prod ucts Magnum performed quite well semi-inverted position after broken-in properly As final testimonial integrity aircraft can state unequivocally after two seasons flying approximately 100 flights have yet damage way has new record February 1986 33 Tall surfaces quite large prooaoiy accounting forthe planes fine flight characteristics Glue fin/dorsal stab after covering bothwith stab mounted fuselage hardware components required forthe DVIII Awell-defined bill materials listed construction plans Everything should available local hobbyshop

FOUR nitely thu theOs- ea i talr fOurh nile thi beenDfdru specifically kind rque NO OCR TEXT Left maintain properCG battery packand servos right behind firewall battery pack located directly beiowthe servos Right Traysfor servos fuel tank shown fuel tank held place bya rubberband foam packing below front back Left Sig engine mount used Magnum 91 exhaust valve pointing downward hydro-locking has prob lem Right An Edson mount used forthe 05 FS 90 75 engines conjunction spacerto get prop right location Left Wing attached cabane struts 1/420 nylon bolts Authors stress tests proved extremely strong method Right Landing gear wing struts held place same 1/420 nylon bolts Collars rear struts allow wing incidence changes Construction model straight-faces model however couldbalsa ribs balsa sheeting unsure forward no exotic non-standardbuild components orderof much load -20 nylon wing materials being used prefer build thebolts hold-down blocks could take sol wing first fuselage tail sur-The wing has spruce spars Lite Ply andconducted experiment prior designing 24 Model Aviation wing mounting arrangement inserted threaded Wing Mfg metal insert hold-down block glued block ceiingjoist basement drilled %2-in hole through middle 1 x 2 x 10-in wood handle bolted handle hold-down block using Du-Bro 4-20 wing bolt Next kids hang handle one find out what point bolt hold-down would fail started Jayme 50 lb Jeannie 100 lb Barbie 120 lb finally Karl 135 lb No failure occurred hung handle myself surprise bolt hold-down did fail though applied full 170 lb test proved method attaching wing adequate As approximation ifjust front two wing hold-down assemblies took full load model weighed 10 lb wing attachment system could withstand positive load 34 Gs Thats far airplane will ever need Components will assembled directly over plan should protected sheet wax paper before beginning construction Start cutting out ribs sanding final size Install Wing Mfg hold-down insert hardwood blocks carve out strut grooves Cut spars length bevel outer ends top spars Cut leading edge LE trailing edge TE sheeting length maldng sure top sheeting extends tip plate Mark cut out front mounting block aileron horn plate bottom sheeting glue place Glue bottom sheeting cap strips together over plan followed gluing bottom spars ribs position Place 4-in-high 4-in-wide shim under sheeting cap strip R4 weight down assembly between R7 R8 finished top wing should straight Glue top spars shear webs Ri through R8including ex tension shear web center section serve brace joining February 1986 25 Len Witn Transparent MonoKate covering internal structure can Inspected perlodlcallyfor possible failure ordamage Tali surfaces removabie transportation storage Right Diagonai braces greatiy increase fuseiages rigidity keeping rear end light consequently no nose weight required tall moment long wouldnt case sheetina used Vortac bomb release system adds extra touch realism fun Author reports has found accurate bombing difficult originally anticipated I cabane strut locatIons closely follow -lizegear cross braces provide just right amount spring action sonen rougn lanaings foam wing Sullivan cables run tothe aileron horns built-up wing hasfi bergiass pushrods belicranks instead wing halves together Glue full-span n balsa strip onto top spar Position Ys x 34-in aileron leading edge pieces mark saw proper height Glue forward aileron LE bottom sheeting rear spars Cut through bottom sheeting RiO R14 leave several spots uncut aileron still attached Position glue RlOa Rl4a bottom sheeting same -in-wide LE between two sub-ribs Proceed small ends Ri 1 Ri 2 Ri 3 glue bottom sheeting Position glue li-in pieces between Ri R2 R3 leading edge next mark carve shape installation wing assembly Remove wing plans glue bottom LE sheeting along LE front portion ribs Trim bottom LE sheeting sand top LE wing sure properly contour both leading edge balsa strip top main spar Mark cut out aileron hinge slots 26 Model Aviation Although shown plans balsacovered foam wing originally built prototype model mlghtwantto take route yourself foam wing fine aerodynamically built-up wing thoughtto far attractive partic ularly use transparent covering Out morning sky Baron Von Crashenbach ou rauthor dives make anotheretrafing run Allied ground troops As usual single bomb landed farfrom its intended target Hatch bottom wing buiii var sions allows easyaccesstothe aileron servo linkage hole hatch provides convenient exit running servo wire Plywood balsa fiberglass used cowl mounts fuselage four constructing cowl bottom side 4-40 socket-head screws Uppertwo screws open fashion full-scale aircraft accessible through cowls air holes inverting engine particular aircraft proper cooling maintained ana oily exhaust directed models bottom minimizing time takes cleanup DESIGNED BY JAMES GILGENBACH 7 3/8 I/4x 1/4 3/8xI-I/2 1/16 BALSA DIA MUSIC WIRE N N l/4x 3/8- 6 OZ FIBERGLASS CLOTH B KN NN N K1/16 N N%I/16xI/4 N 32 SHEETNN 1/8 BALSAN / N 1/8 LITE PLY N /N I/ PLYN 1/4 PLY 5/32 DIA MUSIC WIRE/ I/4x a VINT WHEELS 3/8x 1/2 N 3/8 I/4 x 1/4 MAGNUM 91 4 CYCLE ENGINE /4 N N N NK N N XV N Glue top LE TE sheeting trim LE sheeting Add top sheeting wingtip cut sand itto suit tip plate glue tip plate Finish cutting out aileron carve sand its LE shape Glue aileron linkage hatch floor make linkage hatch support bracket Drill four hatch mounting holes through hatch floor drill two horn mounting holes aileron Attach aileron bellcrank assembly hatch support bracket glue support bracket Attach aileron wing hinges attach control horn hookup linkage rod bellcrank Check see free movement aileron through linkages completes half wing Repeat steps build other half join halves together Add remaining center section braces aileron servo hatch floor Make aileron servo hatch position hatch floor drill two mounting holes complete wings construction add center section top sheeting remaining cap strips Install aileron servo remaining linkage check assure action proper Remove servo linkage finish-sand wing put wing aside safe place avoid hangar rash until ready cover Fuselage tedious part involves cutting/fitting diagonal braces between longerons aft cockpit area could constructed easily 3/n sheet balsa beautiful see-through vintage look would lost achieve proper alignment fuse lage built upside down directly over wax-paper-covered plans Begin cutting out plywood parts sanding finish size Drill holes firewall top hatch mount mounting plate tail surfaces install blind nuts Cut spruce longerons balsa cross braces length finishsand Glue thick cyanoacrylate CyAworks great gluing re quired longerons Lite Ply dou blers Make sure build both right- left-hand fuselage sides / CI c2 C3 CUT OUT FOR STRUT COLLAR 4 REGUIRED AIRTRON PACK NO 95003 7/_ SD-IN FUEL TANK 7-ABATTERY 5 FUEL TANK TRAY FWI \$ _ EJF IRTRDNICS 03CHANGING2 6JACK TI 5K4 II0 FINELAGE DOUBLER OUTLINE --\I II _$7 WINDSNIELD WRAP WON COPPER WING AND SILVER SOLDERII/32DRLL 732 PLACES FCR IMEEL MSOI NOD GLUE INNER MJWW 5I2395KIN PLACE Position doubler assemblies upside down plan glue F2 F3 between use steel squaring blocks align formers properly directions Add remaining formers cross braces carefully working front fuselage back Put longerons together back fuselage glue rear vertical post Cut fit plywood Lite Ply bottom fuselage Drill holes fuel vent switch charging jacks bomb release glue bottom pieces mounting plates tail surfaces Cut fit glue diagonal braces rear portion fuselage Glue plywood Left Position bottom wing sheeting cap strips main spar overthe plans covered wax paper tape place shown Right Ribs secondary spars instaiied using squaring biock foraiignment Make sure dont glue hoiddown tape structure 28 Model Aviation I____________ DOlE FUSELAGE REMOVED FOR CLARITY V4-DD TAP TRWJ 14 REOUIREDI R Full-Size Plans Available. See Page 164 FUSELAGE TOP VIEW 210 Z22 IJWING STRUT PATTERNS NO 94554 TYCAL 654cR Cs riiiivrRE E ER NO 923 2 SERVO B RECEIVER TRAY ____________________5 /0 2179FW2 F -2-------~4 REND WASNER IJp~ ii0 RETARIIL EAR STRIJT3-RIGRT B LEFT Fl FUSE LAGE SIDE VIEW LEFT NOR NOJELER WAD 54EETWG7R 2 F2 2 F3 I 0 Il Kr Fl 0 15 \\ \ RUDDER 4/ /1 6-S SHEET OF 2 MODEL AVIATION FOKKER DIIL DESIGNED B DRAWN BY JAMES GILGENBACH TRACING BY JOE DEMARCO WEE RIGHTS RESERVEII tail wheel mount Yn sheeting rear Remove fuselage plans glue landing gear mounts drill tap holes nylon landing gear bolts Glue F 1 cockpit floor remaining top formers stringers sheet ing cut out sheeting cockpit Complete section adding side formers stringers sheeting Build fit top hatch locate glue its mount place Install -in plastic servo wire tube hatch form lip bottom end tube press end squarely onto hot plate heated frying pan Fuel-proof servo tray fuel tank tray inside portion fuselage exposed hatch Left Remove wing plans Bend bottom leading edge sheeting up glue leading edge Trim flush top sur face leading edge Right Wing hold-downs nested between two Lite Ply ribs Center sheeting extends bay outboard February 1986 29 NI removed Install trays servos fuel tank Mount engine install throttle servo linkage check proper operation Remove items finishsanding fuselage done put aside completed wing out harms way Tail Surfaces Build horizontal stabil izer elevators fin rudder directly over plans Note TE elevator must shimmed up symmetrical shape Once constructed finish-sand components Install tail wheel assembly hinges horns dont glue yet Assemble tail surfaces fuselage making sure fit proper however glue fin stabilizer just yet instead use masking tape T-pins hold place tail surfaces designed removed taking out two 440 bolts loosening two setscrews lower rudder necessary cut down two Robart hinges slide freely out Yn-in OD brass tubes Also drill hole %2-in tubes allow setscrews tighten down onto hinges themselves crushing tubes Install radio gear rudder elevator pushrods Operate controls assure no binding occurs position pushrod supports up F5 screw place Check controls again make sure still operate smoothly everything working properly disassem ble components set aside Wire pieces wing struts made -in music wire wheel collars used final adjustment Care must taken form struts accurately Other wise will very difficult obtain proper wing alignment Note left right side struts alike landing gear made 5A2-in music wire wrapped copper wire silver soldered recommend use Breiten wire bender similar form struts landing gear cowl made building up ply wood balsa Styrofoam frame fibergiassing outside First glue %2 sheet balsa -in balsa blocks between C2 C3 Cut out 2-in-thick niece Styrofoam form DESaRPTHOR41 _ _ ________ L ____ ____________________________________________ ___ 2 REQ STABILIZER _ r e outside shape C2 tack-glue 6-oz fiberglass cloth Workout C2 Also glue Cl Styrofoam Sand air bubbles set cowl aside to desired shape 60-grit dry sand- cure paper When epoxy has cured trim off Mix batch Hobbypoxy 2 brush excess fiberglass Rough-sand struc onto outside cowl plug cover ture being careful sand through STRUT OOVE rRAY U_ 5 ____ _________ _______j VATOR HR Left Wing holddown blocks mounted flush bottom sheeting blocks have grooves cabane strut wires will rest Right Joining wing halves together spruce strips main spar assures strong center section finished top wing straight no dihedral top wing surface Control rods fiberglass fishing rod typevery light strong 30 Model Aviation Full-Size Plans Available. See Page 164 EETRIG GdIflEO 2.ARITy 5 II W2a is________ 13 IS F4 H-H is F6 II SI PORTIONThis FY77777~ - RII PORTION FROU 71LjR N R2 __ -j 1dfr1i ______4 EQ13EQ ___ ____3 ROlOHES ALERON A1134 12_____2 REQ2REO isRS_____2 REQ 2 REQ_ ORESAl ERON SERVO PATOR II REQ ____/7 0__ __ S20// lOa iI _______ 4 RIGHT SisE 4 CABANE STRUT\ ____/ I2R12_____OREQO y I2RISz2 REQ LIW 2c flF LANDING GEAR STRUTS 4 F lb REQO V MODEL AVIATION FOKKER D DESIGNED S DRAWN BY DAMES GIWENBACH TRACING BY JE DEMANCO ALL RIGHTS RESFIWS fiberglass Mix up batch two parts microballoons part Hobbypoxy 2 apply fiberglass second coat has cured cut out openings sand cowl its finished size dig scrape out Styrofoam outside cowl complete point inside must treated similar manner added strength mix up another batch Hobbypoxy 2 brush onto inside cowl Add layer 6-oz fiberglass cloth inside between Cl C2 done outside After curing check make sure cowl fits properly fuselage does interfere engine throttle linkage Assembly misaligned aircraft will never fly properly jammed control can easily cause crash Before covering painting therefore recommend install componentsincluding radio engine landing gearand coinFebruary 1986 31 Left room foreven much largeralleron servo butanyser vo over 45 oz/ln torque adequate Author has used both Airtronlcs 94394 99554 servos good success Above Aileron belicrankaccess possible use bali link end control rod conjunction removable Lite Ply hatch Two nylon belicranks bolted togetherto increase stiffness thereby eliminate aileron fiutterand spongyness ailerons hinged just below topwing sheeting pletely assemble aircraft Make sure alignments correct no warps controls operate properly interference binding Extra effort applied point will pay itself satisfaction later Covering finishing basically mat ter personal preference Some old-timers would say sin finish aircraft anything silk dope However old-timer has fill breathing dope fumes smelling up house Because Fokker intended true scale recommend following Disassemble aircraft finish-sand parts 220-grit paper Prime color cowl epoxy paint greatest durability Cover remainder aircraft iron-on film fabric looks great transparent MonoKote Trimming flying After covering finishing reassemble plane check out controls sure function properly elevator should have 1 up-travel l/16 down ailerons should have /16 up 13/16 down rudder should have 1 travel left right Make sure center gravity GO within designated range throttle should set up fully stop engine stick trim fully back Attaining settings piece cake Airtronics CS7P radio has end point adjustment elevator ailerons total throw adjustment rudder throttle retracts also has Left scale aileron provides ample control After wing tip plate Installed tip can sanded smooth well-defined edge Right Install servo tray afterfitting servos Author recommends Hobbypoxy 2 coatIng forthe entire area exposed bythe hatch 32 Model Aviation Before installing thewingtip plate sandthe plywood wing tip plate minimizes damage tip sheeting spars correct angle dings overall weight great conthen bevel tip rib accept tip plate cern1 /16 balsa could substituted ply Turtleback prototype model stringer plans show three Improved appearance Note mounting plate threaded inserts securing tall surfaces servo reversing channels probably greatest invention since sliced bread addition has aileron/rudder coupling feature allows electronic mixing rudder ailerons make coordinated turns effortlessly amount throw rudder being coupled ailerons can adjusted sepa rately used retract channel oper ating bomb release subject radios very important component cannot over looked servo properly control large aircraft Quarter Scale range strong powerful servos required oontrol surfaces Fokker DVIII servos least 45 oz/in torque should used originally installed No 94394 standard Airtronics servos 48 oz/in torque performed very well However being conservative nature somewhat perfectionistic later installed No 99554 Airtronics coreless ball bearing heavy duty servos elevator rudder ailerons servos have whop ping 735 oz/in torque far smoothest servos have seen have installed receiver antenna wire inside fuselage encased outer portion Gold-n-Rod running radio compartment back taila very clean installation hesitate recommend everyone however know other brands radio will function properly arrangement assure safe rewarding first flight recommend become familiar operation four-cycle engine Run test stand until performs well idle mid-range top speed mount engine Fokker test runs reliably ground Dont expect erratic running clear up once its air wont recommended prop size 60 four-cycle 14-in diameter 5-in pitch 75 14-6 90 15-6 After flying Fokker season OS FS75 05 FS9O installed Magnum 91 Pearson Power Prod ucts Magnum performed quite well semi-inverted position after broken-in properly As final testimonial integrity aircraft can state unequivocally after two seasons flying approximately 100 flights have yet damage way has new record February 1986 33 Tall surfaces quite large prooaoiy accounting forthe planes fine flight characteristics Glue fin/dorsal stab after covering bothwith stab mounted fuselage hardware components required forthe DVIII Awell-defined bill materials listed construction plans Everything should available local hobbyshop

FOUR nitely thu theOs- ea i talr fOurh nile thi beenDfdru specifically kind rque NO OCR TEXT Left maintain properCG battery packand servos right behind firewall battery pack located directly beiowthe servos Right Traysfor servos fuel tank shown fuel tank held place bya rubberband foam packing below front back Left Sig engine mount used Magnum 91 exhaust valve pointing downward hydro-locking has prob lem Right An Edson mount used forthe 05 FS 90 75 engines conjunction spacerto get prop right location Left Wing attached cabane struts 1/420 nylon bolts Authors stress tests proved extremely strong method Right Landing gear wing struts held place same 1/420 nylon bolts Collars rear struts allow wing incidence changes Construction model straight-faces model however couldbalsa ribs balsa sheeting unsure forward no exotic non-standardbuild components orderof much load -20 nylon wing materials being used prefer build thebolts hold-down blocks could take sol wing first fuselage tail sur-The wing has spruce spars Lite Ply andconducted experiment prior designing 24 Model Aviation wing mounting arrangement inserted threaded Wing Mfg metal insert hold-down block glued block ceiingjoist basement drilled %2-in hole through middle 1 x 2 x 10-in wood handle bolted handle hold-down block using Du-Bro 4-20 wing bolt Next kids hang handle one find out what point bolt hold-down would fail started Jayme 50 lb Jeannie 100 lb Barbie 120 lb finally Karl 135 lb No failure occurred hung handle myself surprise bolt hold-down did fail though applied full 170 lb test proved method attaching wing adequate As approximation ifjust front two wing hold-down assemblies took full load model weighed 10 lb wing attachment system could withstand positive load 34 Gs Thats far airplane will ever need Components will assembled directly over plan should protected sheet wax paper before beginning construction Start cutting out ribs sanding final size Install Wing Mfg hold-down insert hardwood blocks carve out strut grooves Cut spars length bevel outer ends top spars Cut leading edge LE trailing edge TE sheeting length maldng sure top sheeting extends tip plate Mark cut out front mounting block aileron horn plate bottom sheeting glue place Glue bottom sheeting cap strips together over plan followed gluing bottom spars ribs position Place 4-in-high 4-in-wide shim under sheeting cap strip R4 weight down assembly between R7 R8 finished top wing should straight Glue top spars shear webs Ri through R8including ex tension shear web center section serve brace joining February 1986 25 Len Witn Transparent MonoKate covering internal structure can Inspected perlodlcallyfor possible failure ordamage Tali surfaces removabie transportation storage Right Diagonai braces greatiy increase fuseiages rigidity keeping rear end light consequently no nose weight required tall moment long wouldnt case sheetina used Vortac bomb release system adds extra touch realism fun Author reports has found accurate bombing difficult originally anticipated I cabane strut locatIons closely follow -lizegear cross braces provide just right amount spring action sonen rougn lanaings foam wing Sullivan cables run tothe aileron horns built-up wing hasfi bergiass pushrods belicranks instead wing halves together Glue full-span n balsa strip onto top spar Position Ys x 34-in aileron leading edge pieces mark saw proper height Glue forward aileron LE bottom sheeting rear spars Cut through bottom sheeting RiO R14 leave several spots uncut aileron still attached Position glue RlOa Rl4a bottom sheeting same -in-wide LE between two sub-ribs Proceed small ends Ri 1 Ri 2 Ri 3 glue bottom sheeting Position glue li-in pieces between Ri R2 R3 leading edge next mark carve shape installation wing assembly Remove wing plans glue bottom LE sheeting along LE front portion ribs Trim bottom LE sheeting sand top LE wing sure properly contour both leading edge balsa strip top main spar Mark cut out aileron hinge slots 26 Model Aviation Although shown plans balsacovered foam wing originally built prototype model mlghtwantto take route yourself foam wing fine aerodynamically built-up wing thoughtto far attractive partic ularly use transparent covering Out morning sky Baron Von Crashenbach ou rauthor dives make anotheretrafing run Allied ground troops As usual single bomb landed farfrom its intended target Hatch bottom wing buiii var sions allows easyaccesstothe aileron servo linkage hole hatch provides convenient exit running servo wire Plywood balsa fiberglass used cowl mounts fuselage four constructing cowl bottom side 4-40 socket-head screws Uppertwo screws open fashion full-scale aircraft accessible through cowls air holes inverting engine particular aircraft proper cooling maintained ana oily exhaust directed models bottom minimizing time takes cleanup DESIGNED BY JAMES GILGENBACH 7 3/8 I/4x 1/4 3/8xI-I/2 1/16 BALSA DIA MUSIC WIRE N N l/4x 3/8- 6 OZ FIBERGLASS CLOTH B KN NN N K1/16 N N%I/16xI/4 N 32 SHEETNN 1/8 BALSAN / N 1/8 LITE PLY N /N I/ PLYN 1/4 PLY 5/32 DIA MUSIC WIRE/ I/4x a VINT WHEELS 3/8x 1/2 N 3/8 I/4 x 1/4 MAGNUM 91 4 CYCLE ENGINE /4 N N N NK N N XV N Glue top LE TE sheeting trim LE sheeting Add top sheeting wingtip cut sand itto suit tip plate glue tip plate Finish cutting out aileron carve sand its LE shape Glue aileron linkage hatch floor make linkage hatch support bracket Drill four hatch mounting holes through hatch floor drill two horn mounting holes aileron Attach aileron bellcrank assembly hatch support bracket glue support bracket Attach aileron wing hinges attach control horn hookup linkage rod bellcrank Check see free movement aileron through linkages completes half wing Repeat steps build other half join halves together Add remaining center section braces aileron servo hatch floor Make aileron servo hatch position hatch floor drill two mounting holes complete wings construction add center section top sheeting remaining cap strips Install aileron servo remaining linkage check assure action proper Remove servo linkage finish-sand wing put wing aside safe place avoid hangar rash until ready cover Fuselage tedious part involves cutting/fitting diagonal braces between longerons aft cockpit area could constructed easily 3/n sheet balsa beautiful see-through vintage look would lost achieve proper alignment fuse lage built upside down directly over wax-paper-covered plans Begin cutting out plywood parts sanding finish size Drill holes firewall top hatch mount mounting plate tail surfaces install blind nuts Cut spruce longerons balsa cross braces length finishsand Glue thick cyanoacrylate CyAworks great gluing re quired longerons Lite Ply dou blers Make sure build both right- left-hand fuselage sides / CI c2 C3 CUT OUT FOR STRUT COLLAR 4 REGUIRED AIRTRON PACK NO 95003 7/_ SD-IN FUEL TANK 7-ABATTERY 5 FUEL TANK TRAY FWI \$ _ EJF IRTRDNICS 03CHANGING2 6JACK TI 5K4 II0 FINELAGE DOUBLER OUTLINE --\I II _$7 WINDSNIELD WRAP WON COPPER WING AND SILVER SOLDERII/32DRLL 732 PLACES FCR IMEEL MSOI NOD GLUE INNER MJWW 5I2395KIN PLACE Position doubler assemblies upside down plan glue F2 F3 between use steel squaring blocks align formers properly directions Add remaining formers cross braces carefully working front fuselage back Put longerons together back fuselage glue rear vertical post Cut fit plywood Lite Ply bottom fuselage Drill holes fuel vent switch charging jacks bomb release glue bottom pieces mounting plates tail surfaces Cut fit glue diagonal braces rear portion fuselage Glue plywood Left Position bottom wing sheeting cap strips main spar overthe plans covered wax paper tape place shown Right Ribs secondary spars instaiied using squaring biock foraiignment Make sure dont glue hoiddown tape structure 28 Model Aviation I____________ DOlE FUSELAGE REMOVED FOR CLARITY V4-DD TAP TRWJ 14 REOUIREDI R Full-Size Plans Available. See Page 164 FUSELAGE TOP VIEW 210 Z22 IJWING STRUT PATTERNS NO 94554 TYCAL 654cR Cs riiiivrRE E ER NO 923 2 SERVO B RECEIVER TRAY ____________________5 /0 2179FW2 F -2-------~4 REND WASNER IJp~ ii0 RETARIIL EAR STRIJT3-RIGRT B LEFT Fl FUSE LAGE SIDE VIEW LEFT NOR NOJELER WAD 54EETWG7R 2 F2 2 F3 I 0 Il Kr Fl 0 15 \\ \ RUDDER 4/ /1 6-S SHEET OF 2 MODEL AVIATION FOKKER DIIL DESIGNED B DRAWN BY JAMES GILGENBACH TRACING BY JOE DEMARCO WEE RIGHTS RESERVEII tail wheel mount Yn sheeting rear Remove fuselage plans glue landing gear mounts drill tap holes nylon landing gear bolts Glue F 1 cockpit floor remaining top formers stringers sheet ing cut out sheeting cockpit Complete section adding side formers stringers sheeting Build fit top hatch locate glue its mount place Install -in plastic servo wire tube hatch form lip bottom end tube press end squarely onto hot plate heated frying pan Fuel-proof servo tray fuel tank tray inside portion fuselage exposed hatch Left Remove wing plans Bend bottom leading edge sheeting up glue leading edge Trim flush top sur face leading edge Right Wing hold-downs nested between two Lite Ply ribs Center sheeting extends bay outboard February 1986 29 NI removed Install trays servos fuel tank Mount engine install throttle servo linkage check proper operation Remove items finishsanding fuselage done put aside completed wing out harms way Tail Surfaces Build horizontal stabil izer elevators fin rudder directly over plans Note TE elevator must shimmed up symmetrical shape Once constructed finish-sand components Install tail wheel assembly hinges horns dont glue yet Assemble tail surfaces fuselage making sure fit proper however glue fin stabilizer just yet instead use masking tape T-pins hold place tail surfaces designed removed taking out two 440 bolts loosening two setscrews lower rudder necessary cut down two Robart hinges slide freely out Yn-in OD brass tubes Also drill hole %2-in tubes allow setscrews tighten down onto hinges themselves crushing tubes Install radio gear rudder elevator pushrods Operate controls assure no binding occurs position pushrod supports up F5 screw place Check controls again make sure still operate smoothly everything working properly disassem ble components set aside Wire pieces wing struts made -in music wire wheel collars used final adjustment Care must taken form struts accurately Other wise will very difficult obtain proper wing alignment Note left right side struts alike landing gear made 5A2-in music wire wrapped copper wire silver soldered recommend use Breiten wire bender similar form struts landing gear cowl made building up ply wood balsa Styrofoam frame fibergiassing outside First glue %2 sheet balsa -in balsa blocks between C2 C3 Cut out 2-in-thick niece Styrofoam form DESaRPTHOR41 _ _ ________ L ____ ____________________________________________ ___ 2 REQ STABILIZER _ r e outside shape C2 tack-glue 6-oz fiberglass cloth Workout C2 Also glue Cl Styrofoam Sand air bubbles set cowl aside to desired shape 60-grit dry sand- cure paper When epoxy has cured trim off Mix batch Hobbypoxy 2 brush excess fiberglass Rough-sand struc onto outside cowl plug cover ture being careful sand through STRUT OOVE rRAY U_ 5 ____ _________ _______j VATOR HR Left Wing holddown blocks mounted flush bottom sheeting blocks have grooves cabane strut wires will rest Right Joining wing halves together spruce strips main spar assures strong center section finished top wing straight no dihedral top wing surface Control rods fiberglass fishing rod typevery light strong 30 Model Aviation Full-Size Plans Available. See Page 164 EETRIG GdIflEO 2.ARITy 5 II W2a is________ 13 IS F4 H-H is F6 II SI PORTIONThis FY77777~ - RII PORTION FROU 71LjR N R2 __ -j 1dfr1i ______4 EQ13EQ ___ ____3 ROlOHES ALERON A1134 12_____2 REQ2REO isRS_____2 REQ 2 REQ_ ORESAl ERON SERVO PATOR II REQ ____/7 0__ __ S20// lOa iI _______ 4 RIGHT SisE 4 CABANE STRUT\ ____/ I2R12_____OREQO y I2RISz2 REQ LIW 2c flF LANDING GEAR STRUTS 4 F lb REQO V MODEL AVIATION FOKKER D DESIGNED S DRAWN BY DAMES GIWENBACH TRACING BY JE DEMANCO ALL RIGHTS RESFIWS fiberglass Mix up batch two parts microballoons part Hobbypoxy 2 apply fiberglass second coat has cured cut out openings sand cowl its finished size dig scrape out Styrofoam outside cowl complete point inside must treated similar manner added strength mix up another batch Hobbypoxy 2 brush onto inside cowl Add layer 6-oz fiberglass cloth inside between Cl C2 done outside After curing check make sure cowl fits properly fuselage does interfere engine throttle linkage Assembly misaligned aircraft will never fly properly jammed control can easily cause crash Before covering painting therefore recommend install componentsincluding radio engine landing gearand coinFebruary 1986 31 Left room foreven much largeralleron servo butanyser vo over 45 oz/ln torque adequate Author has used both Airtronlcs 94394 99554 servos good success Above Aileron belicrankaccess possible use bali link end control rod conjunction removable Lite Ply hatch Two nylon belicranks bolted togetherto increase stiffness thereby eliminate aileron fiutterand spongyness ailerons hinged just below topwing sheeting pletely assemble aircraft Make sure alignments correct no warps controls operate properly interference binding Extra effort applied point will pay itself satisfaction later Covering finishing basically mat ter personal preference Some old-timers would say sin finish aircraft anything silk dope However old-timer has fill breathing dope fumes smelling up house Because Fokker intended true scale recommend following Disassemble aircraft finish-sand parts 220-grit paper Prime color cowl epoxy paint greatest durability Cover remainder aircraft iron-on film fabric looks great transparent MonoKote Trimming flying After covering finishing reassemble plane check out controls sure function properly elevator should have 1 up-travel l/16 down ailerons should have /16 up 13/16 down rudder should have 1 travel left right Make sure center gravity GO within designated range throttle should set up fully stop engine stick trim fully back Attaining settings piece cake Airtronics CS7P radio has end point adjustment elevator ailerons total throw adjustment rudder throttle retracts also has Left scale aileron provides ample control After wing tip plate Installed tip can sanded smooth well-defined edge Right Install servo tray afterfitting servos Author recommends Hobbypoxy 2 coatIng forthe entire area exposed bythe hatch 32 Model Aviation Before installing thewingtip plate sandthe plywood wing tip plate minimizes damage tip sheeting spars correct angle dings overall weight great conthen bevel tip rib accept tip plate cern1 /16 balsa could substituted ply Turtleback prototype model stringer plans show three Improved appearance Note mounting plate threaded inserts securing tall surfaces servo reversing channels probably greatest invention since sliced bread addition has aileron/rudder coupling feature allows electronic mixing rudder ailerons make coordinated turns effortlessly amount throw rudder being coupled ailerons can adjusted sepa rately used retract channel oper ating bomb release subject radios very important component cannot over looked servo properly control large aircraft Quarter Scale range strong powerful servos required oontrol surfaces Fokker DVIII servos least 45 oz/in torque should used originally installed No 94394 standard Airtronics servos 48 oz/in torque performed very well However being conservative nature somewhat perfectionistic later installed No 99554 Airtronics coreless ball bearing heavy duty servos elevator rudder ailerons servos have whop ping 735 oz/in torque far smoothest servos have seen have installed receiver antenna wire inside fuselage encased outer portion Gold-n-Rod running radio compartment back taila very clean installation hesitate recommend everyone however know other brands radio will function properly arrangement assure safe rewarding first flight recommend become familiar operation four-cycle engine Run test stand until performs well idle mid-range top speed mount engine Fokker test runs reliably ground Dont expect erratic running clear up once its air wont recommended prop size 60 four-cycle 14-in diameter 5-in pitch 75 14-6 90 15-6 After flying Fokker season OS FS75 05 FS9O installed Magnum 91 Pearson Power Prod ucts Magnum performed quite well semi-inverted position after broken-in properly As final testimonial integrity aircraft can state unequivocally after two seasons flying approximately 100 flights have yet damage way has new record February 1986 33 Tall surfaces quite large prooaoiy accounting forthe planes fine flight characteristics Glue fin/dorsal stab after covering bothwith stab mounted fuselage hardware components required forthe DVIII Awell-defined bill materials listed construction plans Everything should available local hobbyshop