B-25 lure multi-engine models legendary small Pro file Scale Control Line model two 049 engines captures essence much difficulty cost EBiII Michaels IN THE SPRING 1942 war Pacific going badly US As victory followed victory Japanese Americans wanted desperately strike back revive morale Unfortu nately seemed no way time accomplish Sending aircraft carrier task force close enough Japan launch air raid recover planes would probably have resulted loss ships involved Finally someone suggested finding long-range bomberone could take off carrier safe distance bomb Japan continue land China plan merit Lt Col James H Doolittle assigned work out details Thus began famous Doolittle Tokyo Raid plane chosen North Ameri can B-25 Mitchell plane available could modified fly way China after bombing Tokyo being able fit carrier deck Modifications included removing belly turrets heavy radios among other things make room extra fuel tanks needed complete mission Twentyfour B-25Bs outfitted raid plan use 16 raid other six being spares aircraft loaded aboard carrier USS Hornet Because too large use hangar deck elevators secured flight deck during seagoing part journey Top Canopies gun turret markings dress upwhat clearlya simple model Construction sheet balsa exception buiit upwing Above Left ianding gear covered 1/16 ply firewaii perpendicuierto naceiie notto thewing leading edge Above Right Taii surfaces hard 1/16 sheet baisa Paint scheme oiive drab upper surfaces iight gray undersides white canopies 68 Model Aviation Full-Size Plans Available. Page 164 COS 049 BARE BEE3/6 BALSAl/I6BALSA CENTERISI/B BALSA SPARS 1/4 BALSA SHEETENGINE SHOWNFUSELAGESECTISfIISI-IEETING WINS TIPS1 2 REQUIREDTOP 6 BOTTOMTOP BOTTOM 3/4 OZ OUTBOARD WINS TIP WEIGHT BRASS TUBINGLEADING EDGEFOR RIGHT THRUST G PLAN TOP VIEW I/4 1/2 BALSAI OR 2 WASHERS ADDECLARITY____________________________ LEADOUT GUIDESBOTH ENGINES il III RED -- WHITE BLUE R-R6- N-SR-4R-4R-5LIGHT GRAY ROT EIWITJIR6RTOLIVE DRAB TOP LINES_____R3 B-3R-2- B-R2R3 R____________ 1/16 BALSAIRBALSA SHEET RIBS4IBALSA11/4 BALSA TRAILING EDGEVS PLYI/S AFILL MOUNTBELLCNANK 1/4 BALSA SHEET IAPER ASR IR-3R-5R-7 1/4 BALSASHOWN SHEET SCRAP BALSA I/B PLYWOOPV,,BRACES ENGINENACELLE TOP VIEWLG MOUNT NOTE 3/9 BALSA MAY__________________ MOUNTBE SUBSTITUTED INI/4BALSA1A6 MUSI NACELLE CORSTRUNSHEETWIRE________ 1/4 BALSA1----/I/B PLYWOOD SHEETFil ______________________AXLE T BELLCRANK MAINBENTNOSE GEARINBOARDGEAR MAKE 21 1/16 PLY_____ L S MOUNT INBOARD SIDESNACELLE SIDE VIEW OF NACELLES I/16BALSA CENTER SECTION SHEETING LANDING 1/16 BALSA WEBS 6145 liP TOWINGPATTERNS TIPOLIVE DRAB LZI R-4 R-6R-8 USE MONOKOTE ORSTABILIZER NOTE RUDDER OFFSETSIDESI/A BALSA SHEET HORN 1/16 PLY MAKE 3 v BEVEL V16 BALSA REDSHEET WHITE WIUTE_________ 3/B BALSA SHEETOLIVE __/DRAB --- WHITE / -TAIL GUNNER CANOPY l/SA HORN 1/16 PLYI/BPLY LG MOUNTENGINEI/4BALSA1/16 MUSIC WIRE McEB4TPUSHROD V16 MWL/16PLY NOSE GEAR 1 216 WHEEL LIGHT GRAY PROFILE FUSELAGE 1/16 MUSIC W I-I/2 IA WHEELS0I234 IS REOMIRED SPECIFICATIONS WING SPAN305 POWER.2 CDX fl49 ENGINES L MOUNT I1/16 BALSA iMAKE SHEET 2 RUDDER TEMPLATE MODEL AVIATION B-25 B MITCHELL 1/2 PROFILE SCALE DESIGNED S DRAWN BY BILL MICNAELS o _ o-- R-2 NOTE ALL WING RIBS ARE 1/16 BALSA SHEET carrier Enterprise went along provide cover deck full B-25s Hornet no room launch own fighters ready two carriers sailed destinationa point 400 miles off coast Japanroughly twice distance standard carrier-based air strike could launched voyage uneventful until fleet neared its destination just 600 miles off coast Japan discovered Japanese patrol boat Once sighted too risky attempt move task force closer nothing launch B-25s early hope best 16 planes safely launched headed targets Japan raid went well targets bombed no planes lost over Japan Japanese expecting attack come day later thinking carriers would have move closer before planes could launched continuing flight landing fields China did go smoothly weather worsened bombers ap proached China coast making im possible B-25s landed safely Eleven crews bailed out over China ran out gas four planes April 1986 69 TWO CDX 049 BABE BEE ENOINES TRACING BY JOE bLwsO Power provided two Babe Bee 049s cylinders turned inboard sake appearance Glow plug access would easier mounting cylinders vertical picture needle valves have removed protection during transportation crash-landed safe landing 16 B-25s Russia plane didnt have enough gas cross Sea Japan Militarily raid didnt much dam age psychologically great success Morale US soared Japan dismay raid caused Japanese High Command initiate operation hoped would finish off American fleet result Battle Midway know battle broke back Japanese Navy Doolittle Raid bold risk paid off profile model B-25B designed provide interesting project couple 049 engines also logical step up beginner has mastered single-engine profile models wants experiment twin-engine model doesnt require complicated construction pieces exception wing solid balsa built-up wing has no dihedral planked balsa out nacelles covered silkspan Fuselage Cut x 3 x 36 balsa plank nacelles can built leftovers cut -in hard balsa sheeting plan shows use -in sheeting Adjust R-3 rib spacing ac cording size use model cut out section fuselage directly above wing posi tioning mounting wing instead cutting out just airfoil-shaped slot wing-to-fuselage joint would probably bit stronger slot cutout although havent trouble model built according plans isnt much else to fuselage except sand corners round nose gear should mounted after wing tail have glued Wing Make own wing kit assemble pieces Only ribs trailing edges require real work other parts can simply cut length appropriate stock Cut ribs out t balsa tapered wing its progressively-smaller ribs requires work squared-off improved appearance worth Use favorite method cut ribs shape dont have can use make photocopy ribs local post office gives extra set rib templates can cut out damaging plans Hold template over wood carefully draw around cut out balsa always staying outside line Use piece just cut out draw outline same rib other wing panel Next glue two ribs together tiny amount cyanoacry late glue CyA such Zap Jet etc sand match template plans Finally separate two identical Continued page 151 70 Model Aviation Its best start Inboard engine first outboard both engines running rfiii tank inboard engine helps assure thatthe outboard wiii quit firstThe plane will maintain iine tension Inboard engine running both engines running model fast maneuverable Single-engine pertusu. ance inboard adequate photos page Kevin Weiner others author author prepares B-25 another flight 35-ft lines twin engine power nylon string-type 049 lines have insufficient strength Steel lines should always used distributed pressure over entire assembly Allow assembly cure 24 hours Step 6 Sand off excess epoxy have aluminum wing Step 7 Try might like individual has something con tribute Speed column please feel free mail help appreciated address Mr Osamu Khono manufacturer monoline-type con trol unit T HonG Speed Gang Co F-Coat 207 Yakumooai P25-2 Choufu City Tokyo 182 Japan P&G Metal Products new source Dyna Jet just happens have same address given below Gene Hempel 301 N Yale Dr Garland TX 75042 B-25/M ichaels Continued page 70 ribs knife Dont worry about dupli cating shape ribs exactly plans long youre fairly close both wing panels same model should fly okay thingdont forget cut holes lead-out wires inboard wing ribs trailing edge made standard piece pre-shaped trailing edge stock cut down i wide sure cut extra width thick side wood trailing edge will too thick leading edge piece n balsa sanded shape after wing built Because wing incorporates no di hedral can built piece panel time building board small build panel separately glue together Leave top sheeting off until have joined pan els use piece Yi6 sheet go nacelle nacelle However wing will stronger built con tinuous piece instead two halves joined center building board large enough means build wing piece going nacelle nacelle both top bottom sheeting Use very straight flat building board Place plans board cover plans clear plastic wax paper Start construction pinning bottom spar over plan followed bottom sheeting Dont worry about holes nacellesthey will cut out later Once sheeting spar place pin trailing edge plan glue edge bottom sheeting Glue ribs place over spar Use piece scrap balsa get spacing correct nacelles between R-3 ribs Add balsa wing tips after W-8 ribs What happens famous STICK combined St Croix quality CANARD-PUSHER configuration Simply EASIEST-TO-BUILD BESTFLYING canard airplane available high quality wood parts kit precision cut EASY TO ASSEMBLE great instructions plans youll canard flying justafewdays Plus L place Vi6 sheet balsa webbing pieces vertical grain between top bottom spars add good deal strength Im really sure needed outboard nacelles put anyway besides its good practice building skill will come handy later build larger models After gluing webbing pieces place add top spar Finally glue leading edge place let everything dry Remove wing building board after glue has dried sand leading edge shape Mount bellcrank Yl6 ply mount glue mount place Install 2-in music wire lead-outs As-in pushrod Complete center section wing gluing top sheeting place Glue lead-out guides wing tip weight Nacelles Cut out balsa discussed earlier Glue tabs slots nacelles making sure grain runs direction shown method construction much stronger just cutting whole nacelle out single piece balsa Attach firewall braces sand edges nacelles round Make groove landing gear rest /16 plywood plate cover plane easier assemble wire legs sticking out dont attach landing gear point Cut holes bottom wing fit nacelle tabs test-fit nacelles will glued firewalls attached after wing covered Tail surfaces Cut As sheet balsa Notice ends stabilizer cut angle give one-piece fins/rud ders offset Sand edges pieces round connect two elevator WINGSPAN 60 Engine req 35-45 Radio req 4 Chan thoroughly tested aerodynamic perfor mance assures air p lane will easy fly LOADS OF FUN Fly bare bones have fun customiz in9 make very own Star Wars ship Now can join CANARD REVOLU TION easy way.at price can afford halves piece 1/i6in music wire Use favorite method hinging elevators stabilizer used pieces MonoKote ironed across top pieces Dont glue rudders until after stabilizer has attached fuselage Covering assembly etc used silkspan cover wing model again think would use iron-on covering save tune trouble choice covering material up Before assembled planes sections gave wood parts couple coats sanding sealer sanding after pieces much easier work before assembled perform step now good finish isnt necessary model fly greatly improves final appearance Begin final assembly gluing wing fuselage making sure square Glue nacelles wing again assuring squareness both fuselage wing Glue stab fuselage connect pushrod Glue firewalls nacelles wing epoxy Glue main landing gear nacelles attach nose gear Doing order will let adjust way model sits ground raising lowering nose gears position model should rest fuselage parallel ground Remember put tires gear legs before checking Attach rudders youre ready paint model painted Aerogloss Military Flats dopeolive drab upper sur faces light gray undersides let tering US insignia made Trim MonoKote edges sealed clear dope machine guns top turret made small pieces wire April 1986 151 RD PICK Tell dealer want experIence fun canard flying Its easIest beat available call 600-826-042 toll free ORDERS ONLY ST CROIX MODELS OX 279 0 PARK FALLS WI 54552 S aV0 Old limer0 psrtS 0jqU La syatteS Chel1WOlFrom this. - to riorS Point6 InltioZ Engine Parts Only Over 600 items Send $200 current catalog PRO TECHTOR PRO GMOUNT painted black finishing touches have put its time attach engines Make sure put offset washers under both engines per plans assure proper line tension have doubts about engines put stronger inboard side After mounting engines check sure model balances CG point shown plans Balancing front point nose-heaviness okay add nose weight balances aft tail-heaviness Flying Use 35-ft steel lines Start inboard engine first outboard doesnt hurt run outboard engine tad rich side both engines running top off fuel inboard engine helps ensure outboard engine will run out fuel first both engines running model will jump air after short takeoff run flies fairly fast reasonably maneuverable model has no problem flying engine although maneuvers should attempted stopped model designed use two 049 Cox Babe Bee engines though other va rieties Cox 049 engines could sub stituted fact pictures show different engines first day test flying Babe Bees developed fuel leak replaced Babe Bees two other Cox 049s Black Widow Dragon fly replacements provided some extra power longer running times though no doubt plane would fly almost well Babe Bees model has met expecta tions enjoy sound two engines synch ability model make fast laps ground holding downelevator before taking off Twins lot fun model easy way try twin minimum investment FF Indoor/Tenny Continued page 74 prop driven few turns short motor sure problem caused shaft/spar joint having brok en loose Correct other problems find tweaking wherever necessary Automatic-centering hooks can made ways favorite shown Figure 2 side view shows traditional round hook shaft centerline passing through center hook end view shows form back edge hook curve bend tends force rubber toward center hook rather riding up crooked knot hook easily formed using round nose pliers make round hook Dashed lines side view show grip hook conventional needle-nose duck-bill pliers form S curve Align tips round-nose pliers shaft centerline twist clock wise make 5 curve take two tries get just right curve since music wire tends spring back After getting 5 curve just right inspect hook closely sure alignment has changed Use prop-pitch gauge measure pitch both blades sure both blades same angle gauge adjustable check pitch angles two three places blade sure blade twist equal both blades photos shows adjustable prop-pitch gauge being used check setting torque-variable-pitch prop care make own gauge note following features 1 The prop shaft provided fixed reference point insure exact meas urements 2 Provision made measure blade angle one-inch intervals Both blades must checked same radius angles must match closely 3 The blade-angle protractor should have increments degree con structed solidly enough insure repeat able measurements Repairs made damaged prop blades must carefully made avoid changes stiffness structure particular application skin glue fracture prop spar can affect flaring char acteristics prop Cyanoacrylate glue can also stiffen structure unless used sparingly Finally damaged all-balsa blades must very carefully repaired restore exact blade shape Two other photos show two extremes illustrate concepts involved Boston ian prop very deep camber curv ature Any damage changes camber will obviously affect well prop runs will incautious application glue shrinks thereby pulling additional camber photo Stan Chiltons Easy Bs gives clear view full-length prop spars Stan uses very soft light wood sanded very thin prop blades full-length spar necessary control blades under power allow model ceilingscrub damaging prop blades Repair type prop very delicate must done block used build prop initially Next time prop wobble issue will carried construction techniques minimize prop wobble other ineffi ciencies Bud Tenny PO Box S4S Richardson TX 75080 Humminbird/Caton Continued page 80 use straightedge find mark atop centerline tube lay straight piece wood almost thickness pylon along top centerline sight down toward tail aid checking alignment satisfied mark side straightedge cut through tube pylon will fit hole Note part tube above tank com partment should cut walls pylon will have fitted top tube area two spruce supports straddling tank compartment very important step setting proper incidence pylon Measure top rear pylon centerline side tube rear 152 Model Aviation TRANSMITTER CASE. trong thermo molded metal framed soft foam filled 901205 carryIng case best market SCans mitter Price 3250 Add 5250 shippIng Alaska Hawaii 450 ENGINE MOUNTS. fully machIned 6061T6 alsmlns brIghtly pellshof reteiSed mounting holes 60s 1205 Os 61000161 6581 OPt 60 VS 61 115 Os 60 50 90 Enya 60 los cyslos 122 Soya 90120 OS 120 foor sysles $25 Add 1150 ship Ca AK & III 5300 FIBERGLASS COWLS 70 cowls eelpants Sig Pica Top-Filte Jemco Nosen Pilot Stafford Radlais Behrens Garmhausen W E Tech other kits plans Onepiece laminated construction handlaid fIberglass strong hut lightweight Send BASE price list please Include names models interested parts br call between 9AM 9 PM EDT information COD ordering hope hear yout 5IBERGLASS ASTER 703 890-6017 Ospi MA 59 1 1st 530 Goodviec VA 24095 SASE FOR FREE cATALOGcA RESADD6 BERGERON ENTERPRISES 443 ROBERTAFULLERTON CA 92632 us can get completely true-running prop single bearing Shaft/spar misalign ment can spotted easily side as
Edition: Model Aviation - 1986/04
Page Numbers: 68, 69, 70, 151, 152
B-25 lure multi-engine models legendary small Pro file Scale Control Line model two 049 engines captures essence much difficulty cost EBiII Michaels IN THE SPRING 1942 war Pacific going badly US As victory followed victory Japanese Americans wanted desperately strike back revive morale Unfortu nately seemed no way time accomplish Sending aircraft carrier task force close enough Japan launch air raid recover planes would probably have resulted loss ships involved Finally someone suggested finding long-range bomberone could take off carrier safe distance bomb Japan continue land China plan merit Lt Col James H Doolittle assigned work out details Thus began famous Doolittle Tokyo Raid plane chosen North Ameri can B-25 Mitchell plane available could modified fly way China after bombing Tokyo being able fit carrier deck Modifications included removing belly turrets heavy radios among other things make room extra fuel tanks needed complete mission Twentyfour B-25Bs outfitted raid plan use 16 raid other six being spares aircraft loaded aboard carrier USS Hornet Because too large use hangar deck elevators secured flight deck during seagoing part journey Top Canopies gun turret markings dress upwhat clearlya simple model Construction sheet balsa exception buiit upwing Above Left ianding gear covered 1/16 ply firewaii perpendicuierto naceiie notto thewing leading edge Above Right Taii surfaces hard 1/16 sheet baisa Paint scheme oiive drab upper surfaces iight gray undersides white canopies 68 Model Aviation Full-Size Plans Available. Page 164 COS 049 BARE BEE3/6 BALSAl/I6BALSA CENTERISI/B BALSA SPARS 1/4 BALSA SHEETENGINE SHOWNFUSELAGESECTISfIISI-IEETING WINS TIPS1 2 REQUIREDTOP 6 BOTTOMTOP BOTTOM 3/4 OZ OUTBOARD WINS TIP WEIGHT BRASS TUBINGLEADING EDGEFOR RIGHT THRUST G PLAN TOP VIEW I/4 1/2 BALSAI OR 2 WASHERS ADDECLARITY____________________________ LEADOUT GUIDESBOTH ENGINES il III RED -- WHITE BLUE R-R6- N-SR-4R-4R-5LIGHT GRAY ROT EIWITJIR6RTOLIVE DRAB TOP LINES_____R3 B-3R-2- B-R2R3 R____________ 1/16 BALSAIRBALSA SHEET RIBS4IBALSA11/4 BALSA TRAILING EDGEVS PLYI/S AFILL MOUNTBELLCNANK 1/4 BALSA SHEET IAPER ASR IR-3R-5R-7 1/4 BALSASHOWN SHEET SCRAP BALSA I/B PLYWOOPV,,BRACES ENGINENACELLE TOP VIEWLG MOUNT NOTE 3/9 BALSA MAY__________________ MOUNTBE SUBSTITUTED INI/4BALSA1A6 MUSI NACELLE CORSTRUNSHEETWIRE________ 1/4 BALSA1----/I/B PLYWOOD SHEETFil ______________________AXLE T BELLCRANK MAINBENTNOSE GEARINBOARDGEAR MAKE 21 1/16 PLY_____ L S MOUNT INBOARD SIDESNACELLE SIDE VIEW OF NACELLES I/16BALSA CENTER SECTION SHEETING LANDING 1/16 BALSA WEBS 6145 liP TOWINGPATTERNS TIPOLIVE DRAB LZI R-4 R-6R-8 USE MONOKOTE ORSTABILIZER NOTE RUDDER OFFSETSIDESI/A BALSA SHEET HORN 1/16 PLY MAKE 3 v BEVEL V16 BALSA REDSHEET WHITE WIUTE_________ 3/B BALSA SHEETOLIVE __/DRAB --- WHITE / -TAIL GUNNER CANOPY l/SA HORN 1/16 PLYI/BPLY LG MOUNTENGINEI/4BALSA1/16 MUSIC WIRE McEB4TPUSHROD V16 MWL/16PLY NOSE GEAR 1 216 WHEEL LIGHT GRAY PROFILE FUSELAGE 1/16 MUSIC W I-I/2 IA WHEELS0I234 IS REOMIRED SPECIFICATIONS WING SPAN305 POWER.2 CDX fl49 ENGINES L MOUNT I1/16 BALSA iMAKE SHEET 2 RUDDER TEMPLATE MODEL AVIATION B-25 B MITCHELL 1/2 PROFILE SCALE DESIGNED S DRAWN BY BILL MICNAELS o _ o-- R-2 NOTE ALL WING RIBS ARE 1/16 BALSA SHEET carrier Enterprise went along provide cover deck full B-25s Hornet no room launch own fighters ready two carriers sailed destinationa point 400 miles off coast Japanroughly twice distance standard carrier-based air strike could launched voyage uneventful until fleet neared its destination just 600 miles off coast Japan discovered Japanese patrol boat Once sighted too risky attempt move task force closer nothing launch B-25s early hope best 16 planes safely launched headed targets Japan raid went well targets bombed no planes lost over Japan Japanese expecting attack come day later thinking carriers would have move closer before planes could launched continuing flight landing fields China did go smoothly weather worsened bombers ap proached China coast making im possible B-25s landed safely Eleven crews bailed out over China ran out gas four planes April 1986 69 TWO CDX 049 BABE BEE ENOINES TRACING BY JOE bLwsO Power provided two Babe Bee 049s cylinders turned inboard sake appearance Glow plug access would easier mounting cylinders vertical picture needle valves have removed protection during transportation crash-landed safe landing 16 B-25s Russia plane didnt have enough gas cross Sea Japan Militarily raid didnt much dam age psychologically great success Morale US soared Japan dismay raid caused Japanese High Command initiate operation hoped would finish off American fleet result Battle Midway know battle broke back Japanese Navy Doolittle Raid bold risk paid off profile model B-25B designed provide interesting project couple 049 engines also logical step up beginner has mastered single-engine profile models wants experiment twin-engine model doesnt require complicated construction pieces exception wing solid balsa built-up wing has no dihedral planked balsa out nacelles covered silkspan Fuselage Cut x 3 x 36 balsa plank nacelles can built leftovers cut -in hard balsa sheeting plan shows use -in sheeting Adjust R-3 rib spacing ac cording size use model cut out section fuselage directly above wing posi tioning mounting wing instead cutting out just airfoil-shaped slot wing-to-fuselage joint would probably bit stronger slot cutout although havent trouble model built according plans isnt much else to fuselage except sand corners round nose gear should mounted after wing tail have glued Wing Make own wing kit assemble pieces Only ribs trailing edges require real work other parts can simply cut length appropriate stock Cut ribs out t balsa tapered wing its progressively-smaller ribs requires work squared-off improved appearance worth Use favorite method cut ribs shape dont have can use make photocopy ribs local post office gives extra set rib templates can cut out damaging plans Hold template over wood carefully draw around cut out balsa always staying outside line Use piece just cut out draw outline same rib other wing panel Next glue two ribs together tiny amount cyanoacry late glue CyA such Zap Jet etc sand match template plans Finally separate two identical Continued page 151 70 Model Aviation Its best start Inboard engine first outboard both engines running rfiii tank inboard engine helps assure thatthe outboard wiii quit firstThe plane will maintain iine tension Inboard engine running both engines running model fast maneuverable Single-engine pertusu. ance inboard adequate photos page Kevin Weiner others author author prepares B-25 another flight 35-ft lines twin engine power nylon string-type 049 lines have insufficient strength Steel lines should always used distributed pressure over entire assembly Allow assembly cure 24 hours Step 6 Sand off excess epoxy have aluminum wing Step 7 Try might like individual has something con tribute Speed column please feel free mail help appreciated address Mr Osamu Khono manufacturer monoline-type con trol unit T HonG Speed Gang Co F-Coat 207 Yakumooai P25-2 Choufu City Tokyo 182 Japan P&G Metal Products new source Dyna Jet just happens have same address given below Gene Hempel 301 N Yale Dr Garland TX 75042 B-25/M ichaels Continued page 70 ribs knife Dont worry about dupli cating shape ribs exactly plans long youre fairly close both wing panels same model should fly okay thingdont forget cut holes lead-out wires inboard wing ribs trailing edge made standard piece pre-shaped trailing edge stock cut down i wide sure cut extra width thick side wood trailing edge will too thick leading edge piece n balsa sanded shape after wing built Because wing incorporates no di hedral can built piece panel time building board small build panel separately glue together Leave top sheeting off until have joined pan els use piece Yi6 sheet go nacelle nacelle However wing will stronger built con tinuous piece instead two halves joined center building board large enough means build wing piece going nacelle nacelle both top bottom sheeting Use very straight flat building board Place plans board cover plans clear plastic wax paper Start construction pinning bottom spar over plan followed bottom sheeting Dont worry about holes nacellesthey will cut out later Once sheeting spar place pin trailing edge plan glue edge bottom sheeting Glue ribs place over spar Use piece scrap balsa get spacing correct nacelles between R-3 ribs Add balsa wing tips after W-8 ribs What happens famous STICK combined St Croix quality CANARD-PUSHER configuration Simply EASIEST-TO-BUILD BESTFLYING canard airplane available high quality wood parts kit precision cut EASY TO ASSEMBLE great instructions plans youll canard flying justafewdays Plus L place Vi6 sheet balsa webbing pieces vertical grain between top bottom spars add good deal strength Im really sure needed outboard nacelles put anyway besides its good practice building skill will come handy later build larger models After gluing webbing pieces place add top spar Finally glue leading edge place let everything dry Remove wing building board after glue has dried sand leading edge shape Mount bellcrank Yl6 ply mount glue mount place Install 2-in music wire lead-outs As-in pushrod Complete center section wing gluing top sheeting place Glue lead-out guides wing tip weight Nacelles Cut out balsa discussed earlier Glue tabs slots nacelles making sure grain runs direction shown method construction much stronger just cutting whole nacelle out single piece balsa Attach firewall braces sand edges nacelles round Make groove landing gear rest /16 plywood plate cover plane easier assemble wire legs sticking out dont attach landing gear point Cut holes bottom wing fit nacelle tabs test-fit nacelles will glued firewalls attached after wing covered Tail surfaces Cut As sheet balsa Notice ends stabilizer cut angle give one-piece fins/rud ders offset Sand edges pieces round connect two elevator WINGSPAN 60 Engine req 35-45 Radio req 4 Chan thoroughly tested aerodynamic perfor mance assures air p lane will easy fly LOADS OF FUN Fly bare bones have fun customiz in9 make very own Star Wars ship Now can join CANARD REVOLU TION easy way.at price can afford halves piece 1/i6in music wire Use favorite method hinging elevators stabilizer used pieces MonoKote ironed across top pieces Dont glue rudders until after stabilizer has attached fuselage Covering assembly etc used silkspan cover wing model again think would use iron-on covering save tune trouble choice covering material up Before assembled planes sections gave wood parts couple coats sanding sealer sanding after pieces much easier work before assembled perform step now good finish isnt necessary model fly greatly improves final appearance Begin final assembly gluing wing fuselage making sure square Glue nacelles wing again assuring squareness both fuselage wing Glue stab fuselage connect pushrod Glue firewalls nacelles wing epoxy Glue main landing gear nacelles attach nose gear Doing order will let adjust way model sits ground raising lowering nose gears position model should rest fuselage parallel ground Remember put tires gear legs before checking Attach rudders youre ready paint model painted Aerogloss Military Flats dopeolive drab upper sur faces light gray undersides let tering US insignia made Trim MonoKote edges sealed clear dope machine guns top turret made small pieces wire April 1986 151 RD PICK Tell dealer want experIence fun canard flying Its easIest beat available call 600-826-042 toll free ORDERS ONLY ST CROIX MODELS OX 279 0 PARK FALLS WI 54552 S aV0 Old limer0 psrtS 0jqU La syatteS Chel1WOlFrom this. - to riorS Point6 InltioZ Engine Parts Only Over 600 items Send $200 current catalog PRO TECHTOR PRO GMOUNT painted black finishing touches have put its time attach engines Make sure put offset washers under both engines per plans assure proper line tension have doubts about engines put stronger inboard side After mounting engines check sure model balances CG point shown plans Balancing front point nose-heaviness okay add nose weight balances aft tail-heaviness Flying Use 35-ft steel lines Start inboard engine first outboard doesnt hurt run outboard engine tad rich side both engines running top off fuel inboard engine helps ensure outboard engine will run out fuel first both engines running model will jump air after short takeoff run flies fairly fast reasonably maneuverable model has no problem flying engine although maneuvers should attempted stopped model designed use two 049 Cox Babe Bee engines though other va rieties Cox 049 engines could sub stituted fact pictures show different engines first day test flying Babe Bees developed fuel leak replaced Babe Bees two other Cox 049s Black Widow Dragon fly replacements provided some extra power longer running times though no doubt plane would fly almost well Babe Bees model has met expecta tions enjoy sound two engines synch ability model make fast laps ground holding downelevator before taking off Twins lot fun model easy way try twin minimum investment FF Indoor/Tenny Continued page 74 prop driven few turns short motor sure problem caused shaft/spar joint having brok en loose Correct other problems find tweaking wherever necessary Automatic-centering hooks can made ways favorite shown Figure 2 side view shows traditional round hook shaft centerline passing through center hook end view shows form back edge hook curve bend tends force rubber toward center hook rather riding up crooked knot hook easily formed using round nose pliers make round hook Dashed lines side view show grip hook conventional needle-nose duck-bill pliers form S curve Align tips round-nose pliers shaft centerline twist clock wise make 5 curve take two tries get just right curve since music wire tends spring back After getting 5 curve just right inspect hook closely sure alignment has changed Use prop-pitch gauge measure pitch both blades sure both blades same angle gauge adjustable check pitch angles two three places blade sure blade twist equal both blades photos shows adjustable prop-pitch gauge being used check setting torque-variable-pitch prop care make own gauge note following features 1 The prop shaft provided fixed reference point insure exact meas urements 2 Provision made measure blade angle one-inch intervals Both blades must checked same radius angles must match closely 3 The blade-angle protractor should have increments degree con structed solidly enough insure repeat able measurements Repairs made damaged prop blades must carefully made avoid changes stiffness structure particular application skin glue fracture prop spar can affect flaring char acteristics prop Cyanoacrylate glue can also stiffen structure unless used sparingly Finally damaged all-balsa blades must very carefully repaired restore exact blade shape Two other photos show two extremes illustrate concepts involved Boston ian prop very deep camber curv ature Any damage changes camber will obviously affect well prop runs will incautious application glue shrinks thereby pulling additional camber photo Stan Chiltons Easy Bs gives clear view full-length prop spars Stan uses very soft light wood sanded very thin prop blades full-length spar necessary control blades under power allow model ceilingscrub damaging prop blades Repair type prop very delicate must done block used build prop initially Next time prop wobble issue will carried construction techniques minimize prop wobble other ineffi ciencies Bud Tenny PO Box S4S Richardson TX 75080 Humminbird/Caton Continued page 80 use straightedge find mark atop centerline tube lay straight piece wood almost thickness pylon along top centerline sight down toward tail aid checking alignment satisfied mark side straightedge cut through tube pylon will fit hole Note part tube above tank com partment should cut walls pylon will have fitted top tube area two spruce supports straddling tank compartment very important step setting proper incidence pylon Measure top rear pylon centerline side tube rear 152 Model Aviation TRANSMITTER CASE. trong thermo molded metal framed soft foam filled 901205 carryIng case best market SCans mitter Price 3250 Add 5250 shippIng Alaska Hawaii 450 ENGINE MOUNTS. fully machIned 6061T6 alsmlns brIghtly pellshof reteiSed mounting holes 60s 1205 Os 61000161 6581 OPt 60 VS 61 115 Os 60 50 90 Enya 60 los cyslos 122 Soya 90120 OS 120 foor sysles $25 Add 1150 ship Ca AK & III 5300 FIBERGLASS COWLS 70 cowls eelpants Sig Pica Top-Filte Jemco Nosen Pilot Stafford Radlais Behrens Garmhausen W E Tech other kits plans Onepiece laminated construction handlaid fIberglass strong hut lightweight Send BASE price list please Include names models interested parts br call between 9AM 9 PM EDT information COD ordering hope hear yout 5IBERGLASS ASTER 703 890-6017 Ospi MA 59 1 1st 530 Goodviec VA 24095 SASE FOR FREE cATALOGcA RESADD6 BERGERON ENTERPRISES 443 ROBERTAFULLERTON CA 92632 us can get completely true-running prop single bearing Shaft/spar misalign ment can spotted easily side as
Edition: Model Aviation - 1986/04
Page Numbers: 68, 69, 70, 151, 152
B-25 lure multi-engine models legendary small Pro file Scale Control Line model two 049 engines captures essence much difficulty cost EBiII Michaels IN THE SPRING 1942 war Pacific going badly US As victory followed victory Japanese Americans wanted desperately strike back revive morale Unfortu nately seemed no way time accomplish Sending aircraft carrier task force close enough Japan launch air raid recover planes would probably have resulted loss ships involved Finally someone suggested finding long-range bomberone could take off carrier safe distance bomb Japan continue land China plan merit Lt Col James H Doolittle assigned work out details Thus began famous Doolittle Tokyo Raid plane chosen North Ameri can B-25 Mitchell plane available could modified fly way China after bombing Tokyo being able fit carrier deck Modifications included removing belly turrets heavy radios among other things make room extra fuel tanks needed complete mission Twentyfour B-25Bs outfitted raid plan use 16 raid other six being spares aircraft loaded aboard carrier USS Hornet Because too large use hangar deck elevators secured flight deck during seagoing part journey Top Canopies gun turret markings dress upwhat clearlya simple model Construction sheet balsa exception buiit upwing Above Left ianding gear covered 1/16 ply firewaii perpendicuierto naceiie notto thewing leading edge Above Right Taii surfaces hard 1/16 sheet baisa Paint scheme oiive drab upper surfaces iight gray undersides white canopies 68 Model Aviation Full-Size Plans Available. Page 164 COS 049 BARE BEE3/6 BALSAl/I6BALSA CENTERISI/B BALSA SPARS 1/4 BALSA SHEETENGINE SHOWNFUSELAGESECTISfIISI-IEETING WINS TIPS1 2 REQUIREDTOP 6 BOTTOMTOP BOTTOM 3/4 OZ OUTBOARD WINS TIP WEIGHT BRASS TUBINGLEADING EDGEFOR RIGHT THRUST G PLAN TOP VIEW I/4 1/2 BALSAI OR 2 WASHERS ADDECLARITY____________________________ LEADOUT GUIDESBOTH ENGINES il III RED -- WHITE BLUE R-R6- N-SR-4R-4R-5LIGHT GRAY ROT EIWITJIR6RTOLIVE DRAB TOP LINES_____R3 B-3R-2- B-R2R3 R____________ 1/16 BALSAIRBALSA SHEET RIBS4IBALSA11/4 BALSA TRAILING EDGEVS PLYI/S AFILL MOUNTBELLCNANK 1/4 BALSA SHEET IAPER ASR IR-3R-5R-7 1/4 BALSASHOWN SHEET SCRAP BALSA I/B PLYWOOPV,,BRACES ENGINENACELLE TOP VIEWLG MOUNT NOTE 3/9 BALSA MAY__________________ MOUNTBE SUBSTITUTED INI/4BALSA1A6 MUSI NACELLE CORSTRUNSHEETWIRE________ 1/4 BALSA1----/I/B PLYWOOD SHEETFil ______________________AXLE T BELLCRANK MAINBENTNOSE GEARINBOARDGEAR MAKE 21 1/16 PLY_____ L S MOUNT INBOARD SIDESNACELLE SIDE VIEW OF NACELLES I/16BALSA CENTER SECTION SHEETING LANDING 1/16 BALSA WEBS 6145 liP TOWINGPATTERNS TIPOLIVE DRAB LZI R-4 R-6R-8 USE MONOKOTE ORSTABILIZER NOTE RUDDER OFFSETSIDESI/A BALSA SHEET HORN 1/16 PLY MAKE 3 v BEVEL V16 BALSA REDSHEET WHITE WIUTE_________ 3/B BALSA SHEETOLIVE __/DRAB --- WHITE / -TAIL GUNNER CANOPY l/SA HORN 1/16 PLYI/BPLY LG MOUNTENGINEI/4BALSA1/16 MUSIC WIRE McEB4TPUSHROD V16 MWL/16PLY NOSE GEAR 1 216 WHEEL LIGHT GRAY PROFILE FUSELAGE 1/16 MUSIC W I-I/2 IA WHEELS0I234 IS REOMIRED SPECIFICATIONS WING SPAN305 POWER.2 CDX fl49 ENGINES L MOUNT I1/16 BALSA iMAKE SHEET 2 RUDDER TEMPLATE MODEL AVIATION B-25 B MITCHELL 1/2 PROFILE SCALE DESIGNED S DRAWN BY BILL MICNAELS o _ o-- R-2 NOTE ALL WING RIBS ARE 1/16 BALSA SHEET carrier Enterprise went along provide cover deck full B-25s Hornet no room launch own fighters ready two carriers sailed destinationa point 400 miles off coast Japanroughly twice distance standard carrier-based air strike could launched voyage uneventful until fleet neared its destination just 600 miles off coast Japan discovered Japanese patrol boat Once sighted too risky attempt move task force closer nothing launch B-25s early hope best 16 planes safely launched headed targets Japan raid went well targets bombed no planes lost over Japan Japanese expecting attack come day later thinking carriers would have move closer before planes could launched continuing flight landing fields China did go smoothly weather worsened bombers ap proached China coast making im possible B-25s landed safely Eleven crews bailed out over China ran out gas four planes April 1986 69 TWO CDX 049 BABE BEE ENOINES TRACING BY JOE bLwsO Power provided two Babe Bee 049s cylinders turned inboard sake appearance Glow plug access would easier mounting cylinders vertical picture needle valves have removed protection during transportation crash-landed safe landing 16 B-25s Russia plane didnt have enough gas cross Sea Japan Militarily raid didnt much dam age psychologically great success Morale US soared Japan dismay raid caused Japanese High Command initiate operation hoped would finish off American fleet result Battle Midway know battle broke back Japanese Navy Doolittle Raid bold risk paid off profile model B-25B designed provide interesting project couple 049 engines also logical step up beginner has mastered single-engine profile models wants experiment twin-engine model doesnt require complicated construction pieces exception wing solid balsa built-up wing has no dihedral planked balsa out nacelles covered silkspan Fuselage Cut x 3 x 36 balsa plank nacelles can built leftovers cut -in hard balsa sheeting plan shows use -in sheeting Adjust R-3 rib spacing ac cording size use model cut out section fuselage directly above wing posi tioning mounting wing instead cutting out just airfoil-shaped slot wing-to-fuselage joint would probably bit stronger slot cutout although havent trouble model built according plans isnt much else to fuselage except sand corners round nose gear should mounted after wing tail have glued Wing Make own wing kit assemble pieces Only ribs trailing edges require real work other parts can simply cut length appropriate stock Cut ribs out t balsa tapered wing its progressively-smaller ribs requires work squared-off improved appearance worth Use favorite method cut ribs shape dont have can use make photocopy ribs local post office gives extra set rib templates can cut out damaging plans Hold template over wood carefully draw around cut out balsa always staying outside line Use piece just cut out draw outline same rib other wing panel Next glue two ribs together tiny amount cyanoacry late glue CyA such Zap Jet etc sand match template plans Finally separate two identical Continued page 151 70 Model Aviation Its best start Inboard engine first outboard both engines running rfiii tank inboard engine helps assure thatthe outboard wiii quit firstThe plane will maintain iine tension Inboard engine running both engines running model fast maneuverable Single-engine pertusu. ance inboard adequate photos page Kevin Weiner others author author prepares B-25 another flight 35-ft lines twin engine power nylon string-type 049 lines have insufficient strength Steel lines should always used distributed pressure over entire assembly Allow assembly cure 24 hours Step 6 Sand off excess epoxy have aluminum wing Step 7 Try might like individual has something con tribute Speed column please feel free mail help appreciated address Mr Osamu Khono manufacturer monoline-type con trol unit T HonG Speed Gang Co F-Coat 207 Yakumooai P25-2 Choufu City Tokyo 182 Japan P&G Metal Products new source Dyna Jet just happens have same address given below Gene Hempel 301 N Yale Dr Garland TX 75042 B-25/M ichaels Continued page 70 ribs knife Dont worry about dupli cating shape ribs exactly plans long youre fairly close both wing panels same model should fly okay thingdont forget cut holes lead-out wires inboard wing ribs trailing edge made standard piece pre-shaped trailing edge stock cut down i wide sure cut extra width thick side wood trailing edge will too thick leading edge piece n balsa sanded shape after wing built Because wing incorporates no di hedral can built piece panel time building board small build panel separately glue together Leave top sheeting off until have joined pan els use piece Yi6 sheet go nacelle nacelle However wing will stronger built con tinuous piece instead two halves joined center building board large enough means build wing piece going nacelle nacelle both top bottom sheeting Use very straight flat building board Place plans board cover plans clear plastic wax paper Start construction pinning bottom spar over plan followed bottom sheeting Dont worry about holes nacellesthey will cut out later Once sheeting spar place pin trailing edge plan glue edge bottom sheeting Glue ribs place over spar Use piece scrap balsa get spacing correct nacelles between R-3 ribs Add balsa wing tips after W-8 ribs What happens famous STICK combined St Croix quality CANARD-PUSHER configuration Simply EASIEST-TO-BUILD BESTFLYING canard airplane available high quality wood parts kit precision cut EASY TO ASSEMBLE great instructions plans youll canard flying justafewdays Plus L place Vi6 sheet balsa webbing pieces vertical grain between top bottom spars add good deal strength Im really sure needed outboard nacelles put anyway besides its good practice building skill will come handy later build larger models After gluing webbing pieces place add top spar Finally glue leading edge place let everything dry Remove wing building board after glue has dried sand leading edge shape Mount bellcrank Yl6 ply mount glue mount place Install 2-in music wire lead-outs As-in pushrod Complete center section wing gluing top sheeting place Glue lead-out guides wing tip weight Nacelles Cut out balsa discussed earlier Glue tabs slots nacelles making sure grain runs direction shown method construction much stronger just cutting whole nacelle out single piece balsa Attach firewall braces sand edges nacelles round Make groove landing gear rest /16 plywood plate cover plane easier assemble wire legs sticking out dont attach landing gear point Cut holes bottom wing fit nacelle tabs test-fit nacelles will glued firewalls attached after wing covered Tail surfaces Cut As sheet balsa Notice ends stabilizer cut angle give one-piece fins/rud ders offset Sand edges pieces round connect two elevator WINGSPAN 60 Engine req 35-45 Radio req 4 Chan thoroughly tested aerodynamic perfor mance assures air p lane will easy fly LOADS OF FUN Fly bare bones have fun customiz in9 make very own Star Wars ship Now can join CANARD REVOLU TION easy way.at price can afford halves piece 1/i6in music wire Use favorite method hinging elevators stabilizer used pieces MonoKote ironed across top pieces Dont glue rudders until after stabilizer has attached fuselage Covering assembly etc used silkspan cover wing model again think would use iron-on covering save tune trouble choice covering material up Before assembled planes sections gave wood parts couple coats sanding sealer sanding after pieces much easier work before assembled perform step now good finish isnt necessary model fly greatly improves final appearance Begin final assembly gluing wing fuselage making sure square Glue nacelles wing again assuring squareness both fuselage wing Glue stab fuselage connect pushrod Glue firewalls nacelles wing epoxy Glue main landing gear nacelles attach nose gear Doing order will let adjust way model sits ground raising lowering nose gears position model should rest fuselage parallel ground Remember put tires gear legs before checking Attach rudders youre ready paint model painted Aerogloss Military Flats dopeolive drab upper sur faces light gray undersides let tering US insignia made Trim MonoKote edges sealed clear dope machine guns top turret made small pieces wire April 1986 151 RD PICK Tell dealer want experIence fun canard flying Its easIest beat available call 600-826-042 toll free ORDERS ONLY ST CROIX MODELS OX 279 0 PARK FALLS WI 54552 S aV0 Old limer0 psrtS 0jqU La syatteS Chel1WOlFrom this. - to riorS Point6 InltioZ Engine Parts Only Over 600 items Send $200 current catalog PRO TECHTOR PRO GMOUNT painted black finishing touches have put its time attach engines Make sure put offset washers under both engines per plans assure proper line tension have doubts about engines put stronger inboard side After mounting engines check sure model balances CG point shown plans Balancing front point nose-heaviness okay add nose weight balances aft tail-heaviness Flying Use 35-ft steel lines Start inboard engine first outboard doesnt hurt run outboard engine tad rich side both engines running top off fuel inboard engine helps ensure outboard engine will run out fuel first both engines running model will jump air after short takeoff run flies fairly fast reasonably maneuverable model has no problem flying engine although maneuvers should attempted stopped model designed use two 049 Cox Babe Bee engines though other va rieties Cox 049 engines could sub stituted fact pictures show different engines first day test flying Babe Bees developed fuel leak replaced Babe Bees two other Cox 049s Black Widow Dragon fly replacements provided some extra power longer running times though no doubt plane would fly almost well Babe Bees model has met expecta tions enjoy sound two engines synch ability model make fast laps ground holding downelevator before taking off Twins lot fun model easy way try twin minimum investment FF Indoor/Tenny Continued page 74 prop driven few turns short motor sure problem caused shaft/spar joint having brok en loose Correct other problems find tweaking wherever necessary Automatic-centering hooks can made ways favorite shown Figure 2 side view shows traditional round hook shaft centerline passing through center hook end view shows form back edge hook curve bend tends force rubber toward center hook rather riding up crooked knot hook easily formed using round nose pliers make round hook Dashed lines side view show grip hook conventional needle-nose duck-bill pliers form S curve Align tips round-nose pliers shaft centerline twist clock wise make 5 curve take two tries get just right curve since music wire tends spring back After getting 5 curve just right inspect hook closely sure alignment has changed Use prop-pitch gauge measure pitch both blades sure both blades same angle gauge adjustable check pitch angles two three places blade sure blade twist equal both blades photos shows adjustable prop-pitch gauge being used check setting torque-variable-pitch prop care make own gauge note following features 1 The prop shaft provided fixed reference point insure exact meas urements 2 Provision made measure blade angle one-inch intervals Both blades must checked same radius angles must match closely 3 The blade-angle protractor should have increments degree con structed solidly enough insure repeat able measurements Repairs made damaged prop blades must carefully made avoid changes stiffness structure particular application skin glue fracture prop spar can affect flaring char acteristics prop Cyanoacrylate glue can also stiffen structure unless used sparingly Finally damaged all-balsa blades must very carefully repaired restore exact blade shape Two other photos show two extremes illustrate concepts involved Boston ian prop very deep camber curv ature Any damage changes camber will obviously affect well prop runs will incautious application glue shrinks thereby pulling additional camber photo Stan Chiltons Easy Bs gives clear view full-length prop spars Stan uses very soft light wood sanded very thin prop blades full-length spar necessary control blades under power allow model ceilingscrub damaging prop blades Repair type prop very delicate must done block used build prop initially Next time prop wobble issue will carried construction techniques minimize prop wobble other ineffi ciencies Bud Tenny PO Box S4S Richardson TX 75080 Humminbird/Caton Continued page 80 use straightedge find mark atop centerline tube lay straight piece wood almost thickness pylon along top centerline sight down toward tail aid checking alignment satisfied mark side straightedge cut through tube pylon will fit hole Note part tube above tank com partment should cut walls pylon will have fitted top tube area two spruce supports straddling tank compartment very important step setting proper incidence pylon Measure top rear pylon centerline side tube rear 152 Model Aviation TRANSMITTER CASE. trong thermo molded metal framed soft foam filled 901205 carryIng case best market SCans mitter Price 3250 Add 5250 shippIng Alaska Hawaii 450 ENGINE MOUNTS. fully machIned 6061T6 alsmlns brIghtly pellshof reteiSed mounting holes 60s 1205 Os 61000161 6581 OPt 60 VS 61 115 Os 60 50 90 Enya 60 los cyslos 122 Soya 90120 OS 120 foor sysles $25 Add 1150 ship Ca AK & III 5300 FIBERGLASS COWLS 70 cowls eelpants Sig Pica Top-Filte Jemco Nosen Pilot Stafford Radlais Behrens Garmhausen W E Tech other kits plans Onepiece laminated construction handlaid fIberglass strong hut lightweight Send BASE price list please Include names models interested parts br call between 9AM 9 PM EDT information COD ordering hope hear yout 5IBERGLASS ASTER 703 890-6017 Ospi MA 59 1 1st 530 Goodviec VA 24095 SASE FOR FREE cATALOGcA RESADD6 BERGERON ENTERPRISES 443 ROBERTAFULLERTON CA 92632 us can get completely true-running prop single bearing Shaft/spar misalign ment can spotted easily side as
Edition: Model Aviation - 1986/04
Page Numbers: 68, 69, 70, 151, 152
B-25 lure multi-engine models legendary small Pro file Scale Control Line model two 049 engines captures essence much difficulty cost EBiII Michaels IN THE SPRING 1942 war Pacific going badly US As victory followed victory Japanese Americans wanted desperately strike back revive morale Unfortu nately seemed no way time accomplish Sending aircraft carrier task force close enough Japan launch air raid recover planes would probably have resulted loss ships involved Finally someone suggested finding long-range bomberone could take off carrier safe distance bomb Japan continue land China plan merit Lt Col James H Doolittle assigned work out details Thus began famous Doolittle Tokyo Raid plane chosen North Ameri can B-25 Mitchell plane available could modified fly way China after bombing Tokyo being able fit carrier deck Modifications included removing belly turrets heavy radios among other things make room extra fuel tanks needed complete mission Twentyfour B-25Bs outfitted raid plan use 16 raid other six being spares aircraft loaded aboard carrier USS Hornet Because too large use hangar deck elevators secured flight deck during seagoing part journey Top Canopies gun turret markings dress upwhat clearlya simple model Construction sheet balsa exception buiit upwing Above Left ianding gear covered 1/16 ply firewaii perpendicuierto naceiie notto thewing leading edge Above Right Taii surfaces hard 1/16 sheet baisa Paint scheme oiive drab upper surfaces iight gray undersides white canopies 68 Model Aviation Full-Size Plans Available. Page 164 COS 049 BARE BEE3/6 BALSAl/I6BALSA CENTERISI/B BALSA SPARS 1/4 BALSA SHEETENGINE SHOWNFUSELAGESECTISfIISI-IEETING WINS TIPS1 2 REQUIREDTOP 6 BOTTOMTOP BOTTOM 3/4 OZ OUTBOARD WINS TIP WEIGHT BRASS TUBINGLEADING EDGEFOR RIGHT THRUST G PLAN TOP VIEW I/4 1/2 BALSAI OR 2 WASHERS ADDECLARITY____________________________ LEADOUT GUIDESBOTH ENGINES il III RED -- WHITE BLUE R-R6- N-SR-4R-4R-5LIGHT GRAY ROT EIWITJIR6RTOLIVE DRAB TOP LINES_____R3 B-3R-2- B-R2R3 R____________ 1/16 BALSAIRBALSA SHEET RIBS4IBALSA11/4 BALSA TRAILING EDGEVS PLYI/S AFILL MOUNTBELLCNANK 1/4 BALSA SHEET IAPER ASR IR-3R-5R-7 1/4 BALSASHOWN SHEET SCRAP BALSA I/B PLYWOOPV,,BRACES ENGINENACELLE TOP VIEWLG MOUNT NOTE 3/9 BALSA MAY__________________ MOUNTBE SUBSTITUTED INI/4BALSA1A6 MUSI NACELLE CORSTRUNSHEETWIRE________ 1/4 BALSA1----/I/B PLYWOOD SHEETFil ______________________AXLE T BELLCRANK MAINBENTNOSE GEARINBOARDGEAR MAKE 21 1/16 PLY_____ L S MOUNT INBOARD SIDESNACELLE SIDE VIEW OF NACELLES I/16BALSA CENTER SECTION SHEETING LANDING 1/16 BALSA WEBS 6145 liP TOWINGPATTERNS TIPOLIVE DRAB LZI R-4 R-6R-8 USE MONOKOTE ORSTABILIZER NOTE RUDDER OFFSETSIDESI/A BALSA SHEET HORN 1/16 PLY MAKE 3 v BEVEL V16 BALSA REDSHEET WHITE WIUTE_________ 3/B BALSA SHEETOLIVE __/DRAB --- WHITE / -TAIL GUNNER CANOPY l/SA HORN 1/16 PLYI/BPLY LG MOUNTENGINEI/4BALSA1/16 MUSIC WIRE McEB4TPUSHROD V16 MWL/16PLY NOSE GEAR 1 216 WHEEL LIGHT GRAY PROFILE FUSELAGE 1/16 MUSIC W I-I/2 IA WHEELS0I234 IS REOMIRED SPECIFICATIONS WING SPAN305 POWER.2 CDX fl49 ENGINES L MOUNT I1/16 BALSA iMAKE SHEET 2 RUDDER TEMPLATE MODEL AVIATION B-25 B MITCHELL 1/2 PROFILE SCALE DESIGNED S DRAWN BY BILL MICNAELS o _ o-- R-2 NOTE ALL WING RIBS ARE 1/16 BALSA SHEET carrier Enterprise went along provide cover deck full B-25s Hornet no room launch own fighters ready two carriers sailed destinationa point 400 miles off coast Japanroughly twice distance standard carrier-based air strike could launched voyage uneventful until fleet neared its destination just 600 miles off coast Japan discovered Japanese patrol boat Once sighted too risky attempt move task force closer nothing launch B-25s early hope best 16 planes safely launched headed targets Japan raid went well targets bombed no planes lost over Japan Japanese expecting attack come day later thinking carriers would have move closer before planes could launched continuing flight landing fields China did go smoothly weather worsened bombers ap proached China coast making im possible B-25s landed safely Eleven crews bailed out over China ran out gas four planes April 1986 69 TWO CDX 049 BABE BEE ENOINES TRACING BY JOE bLwsO Power provided two Babe Bee 049s cylinders turned inboard sake appearance Glow plug access would easier mounting cylinders vertical picture needle valves have removed protection during transportation crash-landed safe landing 16 B-25s Russia plane didnt have enough gas cross Sea Japan Militarily raid didnt much dam age psychologically great success Morale US soared Japan dismay raid caused Japanese High Command initiate operation hoped would finish off American fleet result Battle Midway know battle broke back Japanese Navy Doolittle Raid bold risk paid off profile model B-25B designed provide interesting project couple 049 engines also logical step up beginner has mastered single-engine profile models wants experiment twin-engine model doesnt require complicated construction pieces exception wing solid balsa built-up wing has no dihedral planked balsa out nacelles covered silkspan Fuselage Cut x 3 x 36 balsa plank nacelles can built leftovers cut -in hard balsa sheeting plan shows use -in sheeting Adjust R-3 rib spacing ac cording size use model cut out section fuselage directly above wing posi tioning mounting wing instead cutting out just airfoil-shaped slot wing-to-fuselage joint would probably bit stronger slot cutout although havent trouble model built according plans isnt much else to fuselage except sand corners round nose gear should mounted after wing tail have glued Wing Make own wing kit assemble pieces Only ribs trailing edges require real work other parts can simply cut length appropriate stock Cut ribs out t balsa tapered wing its progressively-smaller ribs requires work squared-off improved appearance worth Use favorite method cut ribs shape dont have can use make photocopy ribs local post office gives extra set rib templates can cut out damaging plans Hold template over wood carefully draw around cut out balsa always staying outside line Use piece just cut out draw outline same rib other wing panel Next glue two ribs together tiny amount cyanoacry late glue CyA such Zap Jet etc sand match template plans Finally separate two identical Continued page 151 70 Model Aviation Its best start Inboard engine first outboard both engines running rfiii tank inboard engine helps assure thatthe outboard wiii quit firstThe plane will maintain iine tension Inboard engine running both engines running model fast maneuverable Single-engine pertusu. ance inboard adequate photos page Kevin Weiner others author author prepares B-25 another flight 35-ft lines twin engine power nylon string-type 049 lines have insufficient strength Steel lines should always used distributed pressure over entire assembly Allow assembly cure 24 hours Step 6 Sand off excess epoxy have aluminum wing Step 7 Try might like individual has something con tribute Speed column please feel free mail help appreciated address Mr Osamu Khono manufacturer monoline-type con trol unit T HonG Speed Gang Co F-Coat 207 Yakumooai P25-2 Choufu City Tokyo 182 Japan P&G Metal Products new source Dyna Jet just happens have same address given below Gene Hempel 301 N Yale Dr Garland TX 75042 B-25/M ichaels Continued page 70 ribs knife Dont worry about dupli cating shape ribs exactly plans long youre fairly close both wing panels same model should fly okay thingdont forget cut holes lead-out wires inboard wing ribs trailing edge made standard piece pre-shaped trailing edge stock cut down i wide sure cut extra width thick side wood trailing edge will too thick leading edge piece n balsa sanded shape after wing built Because wing incorporates no di hedral can built piece panel time building board small build panel separately glue together Leave top sheeting off until have joined pan els use piece Yi6 sheet go nacelle nacelle However wing will stronger built con tinuous piece instead two halves joined center building board large enough means build wing piece going nacelle nacelle both top bottom sheeting Use very straight flat building board Place plans board cover plans clear plastic wax paper Start construction pinning bottom spar over plan followed bottom sheeting Dont worry about holes nacellesthey will cut out later Once sheeting spar place pin trailing edge plan glue edge bottom sheeting Glue ribs place over spar Use piece scrap balsa get spacing correct nacelles between R-3 ribs Add balsa wing tips after W-8 ribs What happens famous STICK combined St Croix quality CANARD-PUSHER configuration Simply EASIEST-TO-BUILD BESTFLYING canard airplane available high quality wood parts kit precision cut EASY TO ASSEMBLE great instructions plans youll canard flying justafewdays Plus L place Vi6 sheet balsa webbing pieces vertical grain between top bottom spars add good deal strength Im really sure needed outboard nacelles put anyway besides its good practice building skill will come handy later build larger models After gluing webbing pieces place add top spar Finally glue leading edge place let everything dry Remove wing building board after glue has dried sand leading edge shape Mount bellcrank Yl6 ply mount glue mount place Install 2-in music wire lead-outs As-in pushrod Complete center section wing gluing top sheeting place Glue lead-out guides wing tip weight Nacelles Cut out balsa discussed earlier Glue tabs slots nacelles making sure grain runs direction shown method construction much stronger just cutting whole nacelle out single piece balsa Attach firewall braces sand edges nacelles round Make groove landing gear rest /16 plywood plate cover plane easier assemble wire legs sticking out dont attach landing gear point Cut holes bottom wing fit nacelle tabs test-fit nacelles will glued firewalls attached after wing covered Tail surfaces Cut As sheet balsa Notice ends stabilizer cut angle give one-piece fins/rud ders offset Sand edges pieces round connect two elevator WINGSPAN 60 Engine req 35-45 Radio req 4 Chan thoroughly tested aerodynamic perfor mance assures air p lane will easy fly LOADS OF FUN Fly bare bones have fun customiz in9 make very own Star Wars ship Now can join CANARD REVOLU TION easy way.at price can afford halves piece 1/i6in music wire Use favorite method hinging elevators stabilizer used pieces MonoKote ironed across top pieces Dont glue rudders until after stabilizer has attached fuselage Covering assembly etc used silkspan cover wing model again think would use iron-on covering save tune trouble choice covering material up Before assembled planes sections gave wood parts couple coats sanding sealer sanding after pieces much easier work before assembled perform step now good finish isnt necessary model fly greatly improves final appearance Begin final assembly gluing wing fuselage making sure square Glue nacelles wing again assuring squareness both fuselage wing Glue stab fuselage connect pushrod Glue firewalls nacelles wing epoxy Glue main landing gear nacelles attach nose gear Doing order will let adjust way model sits ground raising lowering nose gears position model should rest fuselage parallel ground Remember put tires gear legs before checking Attach rudders youre ready paint model painted Aerogloss Military Flats dopeolive drab upper sur faces light gray undersides let tering US insignia made Trim MonoKote edges sealed clear dope machine guns top turret made small pieces wire April 1986 151 RD PICK Tell dealer want experIence fun canard flying Its easIest beat available call 600-826-042 toll free ORDERS ONLY ST CROIX MODELS OX 279 0 PARK FALLS WI 54552 S aV0 Old limer0 psrtS 0jqU La syatteS Chel1WOlFrom this. - to riorS Point6 InltioZ Engine Parts Only Over 600 items Send $200 current catalog PRO TECHTOR PRO GMOUNT painted black finishing touches have put its time attach engines Make sure put offset washers under both engines per plans assure proper line tension have doubts about engines put stronger inboard side After mounting engines check sure model balances CG point shown plans Balancing front point nose-heaviness okay add nose weight balances aft tail-heaviness Flying Use 35-ft steel lines Start inboard engine first outboard doesnt hurt run outboard engine tad rich side both engines running top off fuel inboard engine helps ensure outboard engine will run out fuel first both engines running model will jump air after short takeoff run flies fairly fast reasonably maneuverable model has no problem flying engine although maneuvers should attempted stopped model designed use two 049 Cox Babe Bee engines though other va rieties Cox 049 engines could sub stituted fact pictures show different engines first day test flying Babe Bees developed fuel leak replaced Babe Bees two other Cox 049s Black Widow Dragon fly replacements provided some extra power longer running times though no doubt plane would fly almost well Babe Bees model has met expecta tions enjoy sound two engines synch ability model make fast laps ground holding downelevator before taking off Twins lot fun model easy way try twin minimum investment FF Indoor/Tenny Continued page 74 prop driven few turns short motor sure problem caused shaft/spar joint having brok en loose Correct other problems find tweaking wherever necessary Automatic-centering hooks can made ways favorite shown Figure 2 side view shows traditional round hook shaft centerline passing through center hook end view shows form back edge hook curve bend tends force rubber toward center hook rather riding up crooked knot hook easily formed using round nose pliers make round hook Dashed lines side view show grip hook conventional needle-nose duck-bill pliers form S curve Align tips round-nose pliers shaft centerline twist clock wise make 5 curve take two tries get just right curve since music wire tends spring back After getting 5 curve just right inspect hook closely sure alignment has changed Use prop-pitch gauge measure pitch both blades sure both blades same angle gauge adjustable check pitch angles two three places blade sure blade twist equal both blades photos shows adjustable prop-pitch gauge being used check setting torque-variable-pitch prop care make own gauge note following features 1 The prop shaft provided fixed reference point insure exact meas urements 2 Provision made measure blade angle one-inch intervals Both blades must checked same radius angles must match closely 3 The blade-angle protractor should have increments degree con structed solidly enough insure repeat able measurements Repairs made damaged prop blades must carefully made avoid changes stiffness structure particular application skin glue fracture prop spar can affect flaring char acteristics prop Cyanoacrylate glue can also stiffen structure unless used sparingly Finally damaged all-balsa blades must very carefully repaired restore exact blade shape Two other photos show two extremes illustrate concepts involved Boston ian prop very deep camber curv ature Any damage changes camber will obviously affect well prop runs will incautious application glue shrinks thereby pulling additional camber photo Stan Chiltons Easy Bs gives clear view full-length prop spars Stan uses very soft light wood sanded very thin prop blades full-length spar necessary control blades under power allow model ceilingscrub damaging prop blades Repair type prop very delicate must done block used build prop initially Next time prop wobble issue will carried construction techniques minimize prop wobble other ineffi ciencies Bud Tenny PO Box S4S Richardson TX 75080 Humminbird/Caton Continued page 80 use straightedge find mark atop centerline tube lay straight piece wood almost thickness pylon along top centerline sight down toward tail aid checking alignment satisfied mark side straightedge cut through tube pylon will fit hole Note part tube above tank com partment should cut walls pylon will have fitted top tube area two spruce supports straddling tank compartment very important step setting proper incidence pylon Measure top rear pylon centerline side tube rear 152 Model Aviation TRANSMITTER CASE. trong thermo molded metal framed soft foam filled 901205 carryIng case best market SCans mitter Price 3250 Add 5250 shippIng Alaska Hawaii 450 ENGINE MOUNTS. fully machIned 6061T6 alsmlns brIghtly pellshof reteiSed mounting holes 60s 1205 Os 61000161 6581 OPt 60 VS 61 115 Os 60 50 90 Enya 60 los cyslos 122 Soya 90120 OS 120 foor sysles $25 Add 1150 ship Ca AK & III 5300 FIBERGLASS COWLS 70 cowls eelpants Sig Pica Top-Filte Jemco Nosen Pilot Stafford Radlais Behrens Garmhausen W E Tech other kits plans Onepiece laminated construction handlaid fIberglass strong hut lightweight Send BASE price list please Include names models interested parts br call between 9AM 9 PM EDT information COD ordering hope hear yout 5IBERGLASS ASTER 703 890-6017 Ospi MA 59 1 1st 530 Goodviec VA 24095 SASE FOR FREE cATALOGcA RESADD6 BERGERON ENTERPRISES 443 ROBERTAFULLERTON CA 92632 us can get completely true-running prop single bearing Shaft/spar misalign ment can spotted easily side as
Edition: Model Aviation - 1986/04
Page Numbers: 68, 69, 70, 151, 152
B-25 lure multi-engine models legendary small Pro file Scale Control Line model two 049 engines captures essence much difficulty cost EBiII Michaels IN THE SPRING 1942 war Pacific going badly US As victory followed victory Japanese Americans wanted desperately strike back revive morale Unfortu nately seemed no way time accomplish Sending aircraft carrier task force close enough Japan launch air raid recover planes would probably have resulted loss ships involved Finally someone suggested finding long-range bomberone could take off carrier safe distance bomb Japan continue land China plan merit Lt Col James H Doolittle assigned work out details Thus began famous Doolittle Tokyo Raid plane chosen North Ameri can B-25 Mitchell plane available could modified fly way China after bombing Tokyo being able fit carrier deck Modifications included removing belly turrets heavy radios among other things make room extra fuel tanks needed complete mission Twentyfour B-25Bs outfitted raid plan use 16 raid other six being spares aircraft loaded aboard carrier USS Hornet Because too large use hangar deck elevators secured flight deck during seagoing part journey Top Canopies gun turret markings dress upwhat clearlya simple model Construction sheet balsa exception buiit upwing Above Left ianding gear covered 1/16 ply firewaii perpendicuierto naceiie notto thewing leading edge Above Right Taii surfaces hard 1/16 sheet baisa Paint scheme oiive drab upper surfaces iight gray undersides white canopies 68 Model Aviation Full-Size Plans Available. Page 164 COS 049 BARE BEE3/6 BALSAl/I6BALSA CENTERISI/B BALSA SPARS 1/4 BALSA SHEETENGINE SHOWNFUSELAGESECTISfIISI-IEETING WINS TIPS1 2 REQUIREDTOP 6 BOTTOMTOP BOTTOM 3/4 OZ OUTBOARD WINS TIP WEIGHT BRASS TUBINGLEADING EDGEFOR RIGHT THRUST G PLAN TOP VIEW I/4 1/2 BALSAI OR 2 WASHERS ADDECLARITY____________________________ LEADOUT GUIDESBOTH ENGINES il III RED -- WHITE BLUE R-R6- N-SR-4R-4R-5LIGHT GRAY ROT EIWITJIR6RTOLIVE DRAB TOP LINES_____R3 B-3R-2- B-R2R3 R____________ 1/16 BALSAIRBALSA SHEET RIBS4IBALSA11/4 BALSA TRAILING EDGEVS PLYI/S AFILL MOUNTBELLCNANK 1/4 BALSA SHEET IAPER ASR IR-3R-5R-7 1/4 BALSASHOWN SHEET SCRAP BALSA I/B PLYWOOPV,,BRACES ENGINENACELLE TOP VIEWLG MOUNT NOTE 3/9 BALSA MAY__________________ MOUNTBE SUBSTITUTED INI/4BALSA1A6 MUSI NACELLE CORSTRUNSHEETWIRE________ 1/4 BALSA1----/I/B PLYWOOD SHEETFil ______________________AXLE T BELLCRANK MAINBENTNOSE GEARINBOARDGEAR MAKE 21 1/16 PLY_____ L S MOUNT INBOARD SIDESNACELLE SIDE VIEW OF NACELLES I/16BALSA CENTER SECTION SHEETING LANDING 1/16 BALSA WEBS 6145 liP TOWINGPATTERNS TIPOLIVE DRAB LZI R-4 R-6R-8 USE MONOKOTE ORSTABILIZER NOTE RUDDER OFFSETSIDESI/A BALSA SHEET HORN 1/16 PLY MAKE 3 v BEVEL V16 BALSA REDSHEET WHITE WIUTE_________ 3/B BALSA SHEETOLIVE __/DRAB --- WHITE / -TAIL GUNNER CANOPY l/SA HORN 1/16 PLYI/BPLY LG MOUNTENGINEI/4BALSA1/16 MUSIC WIRE McEB4TPUSHROD V16 MWL/16PLY NOSE GEAR 1 216 WHEEL LIGHT GRAY PROFILE FUSELAGE 1/16 MUSIC W I-I/2 IA WHEELS0I234 IS REOMIRED SPECIFICATIONS WING SPAN305 POWER.2 CDX fl49 ENGINES L MOUNT I1/16 BALSA iMAKE SHEET 2 RUDDER TEMPLATE MODEL AVIATION B-25 B MITCHELL 1/2 PROFILE SCALE DESIGNED S DRAWN BY BILL MICNAELS o _ o-- R-2 NOTE ALL WING RIBS ARE 1/16 BALSA SHEET carrier Enterprise went along provide cover deck full B-25s Hornet no room launch own fighters ready two carriers sailed destinationa point 400 miles off coast Japanroughly twice distance standard carrier-based air strike could launched voyage uneventful until fleet neared its destination just 600 miles off coast Japan discovered Japanese patrol boat Once sighted too risky attempt move task force closer nothing launch B-25s early hope best 16 planes safely launched headed targets Japan raid went well targets bombed no planes lost over Japan Japanese expecting attack come day later thinking carriers would have move closer before planes could launched continuing flight landing fields China did go smoothly weather worsened bombers ap proached China coast making im possible B-25s landed safely Eleven crews bailed out over China ran out gas four planes April 1986 69 TWO CDX 049 BABE BEE ENOINES TRACING BY JOE bLwsO Power provided two Babe Bee 049s cylinders turned inboard sake appearance Glow plug access would easier mounting cylinders vertical picture needle valves have removed protection during transportation crash-landed safe landing 16 B-25s Russia plane didnt have enough gas cross Sea Japan Militarily raid didnt much dam age psychologically great success Morale US soared Japan dismay raid caused Japanese High Command initiate operation hoped would finish off American fleet result Battle Midway know battle broke back Japanese Navy Doolittle Raid bold risk paid off profile model B-25B designed provide interesting project couple 049 engines also logical step up beginner has mastered single-engine profile models wants experiment twin-engine model doesnt require complicated construction pieces exception wing solid balsa built-up wing has no dihedral planked balsa out nacelles covered silkspan Fuselage Cut x 3 x 36 balsa plank nacelles can built leftovers cut -in hard balsa sheeting plan shows use -in sheeting Adjust R-3 rib spacing ac cording size use model cut out section fuselage directly above wing posi tioning mounting wing instead cutting out just airfoil-shaped slot wing-to-fuselage joint would probably bit stronger slot cutout although havent trouble model built according plans isnt much else to fuselage except sand corners round nose gear should mounted after wing tail have glued Wing Make own wing kit assemble pieces Only ribs trailing edges require real work other parts can simply cut length appropriate stock Cut ribs out t balsa tapered wing its progressively-smaller ribs requires work squared-off improved appearance worth Use favorite method cut ribs shape dont have can use make photocopy ribs local post office gives extra set rib templates can cut out damaging plans Hold template over wood carefully draw around cut out balsa always staying outside line Use piece just cut out draw outline same rib other wing panel Next glue two ribs together tiny amount cyanoacry late glue CyA such Zap Jet etc sand match template plans Finally separate two identical Continued page 151 70 Model Aviation Its best start Inboard engine first outboard both engines running rfiii tank inboard engine helps assure thatthe outboard wiii quit firstThe plane will maintain iine tension Inboard engine running both engines running model fast maneuverable Single-engine pertusu. ance inboard adequate photos page Kevin Weiner others author author prepares B-25 another flight 35-ft lines twin engine power nylon string-type 049 lines have insufficient strength Steel lines should always used distributed pressure over entire assembly Allow assembly cure 24 hours Step 6 Sand off excess epoxy have aluminum wing Step 7 Try might like individual has something con tribute Speed column please feel free mail help appreciated address Mr Osamu Khono manufacturer monoline-type con trol unit T HonG Speed Gang Co F-Coat 207 Yakumooai P25-2 Choufu City Tokyo 182 Japan P&G Metal Products new source Dyna Jet just happens have same address given below Gene Hempel 301 N Yale Dr Garland TX 75042 B-25/M ichaels Continued page 70 ribs knife Dont worry about dupli cating shape ribs exactly plans long youre fairly close both wing panels same model should fly okay thingdont forget cut holes lead-out wires inboard wing ribs trailing edge made standard piece pre-shaped trailing edge stock cut down i wide sure cut extra width thick side wood trailing edge will too thick leading edge piece n balsa sanded shape after wing built Because wing incorporates no di hedral can built piece panel time building board small build panel separately glue together Leave top sheeting off until have joined pan els use piece Yi6 sheet go nacelle nacelle However wing will stronger built con tinuous piece instead two halves joined center building board large enough means build wing piece going nacelle nacelle both top bottom sheeting Use very straight flat building board Place plans board cover plans clear plastic wax paper Start construction pinning bottom spar over plan followed bottom sheeting Dont worry about holes nacellesthey will cut out later Once sheeting spar place pin trailing edge plan glue edge bottom sheeting Glue ribs place over spar Use piece scrap balsa get spacing correct nacelles between R-3 ribs Add balsa wing tips after W-8 ribs What happens famous STICK combined St Croix quality CANARD-PUSHER configuration Simply EASIEST-TO-BUILD BESTFLYING canard airplane available high quality wood parts kit precision cut EASY TO ASSEMBLE great instructions plans youll canard flying justafewdays Plus L place Vi6 sheet balsa webbing pieces vertical grain between top bottom spars add good deal strength Im really sure needed outboard nacelles put anyway besides its good practice building skill will come handy later build larger models After gluing webbing pieces place add top spar Finally glue leading edge place let everything dry Remove wing building board after glue has dried sand leading edge shape Mount bellcrank Yl6 ply mount glue mount place Install 2-in music wire lead-outs As-in pushrod Complete center section wing gluing top sheeting place Glue lead-out guides wing tip weight Nacelles Cut out balsa discussed earlier Glue tabs slots nacelles making sure grain runs direction shown method construction much stronger just cutting whole nacelle out single piece balsa Attach firewall braces sand edges nacelles round Make groove landing gear rest /16 plywood plate cover plane easier assemble wire legs sticking out dont attach landing gear point Cut holes bottom wing fit nacelle tabs test-fit nacelles will glued firewalls attached after wing covered Tail surfaces Cut As sheet balsa Notice ends stabilizer cut angle give one-piece fins/rud ders offset Sand edges pieces round connect two elevator WINGSPAN 60 Engine req 35-45 Radio req 4 Chan thoroughly tested aerodynamic perfor mance assures air p lane will easy fly LOADS OF FUN Fly bare bones have fun customiz in9 make very own Star Wars ship Now can join CANARD REVOLU TION easy way.at price can afford halves piece 1/i6in music wire Use favorite method hinging elevators stabilizer used pieces MonoKote ironed across top pieces Dont glue rudders until after stabilizer has attached fuselage Covering assembly etc used silkspan cover wing model again think would use iron-on covering save tune trouble choice covering material up Before assembled planes sections gave wood parts couple coats sanding sealer sanding after pieces much easier work before assembled perform step now good finish isnt necessary model fly greatly improves final appearance Begin final assembly gluing wing fuselage making sure square Glue nacelles wing again assuring squareness both fuselage wing Glue stab fuselage connect pushrod Glue firewalls nacelles wing epoxy Glue main landing gear nacelles attach nose gear Doing order will let adjust way model sits ground raising lowering nose gears position model should rest fuselage parallel ground Remember put tires gear legs before checking Attach rudders youre ready paint model painted Aerogloss Military Flats dopeolive drab upper sur faces light gray undersides let tering US insignia made Trim MonoKote edges sealed clear dope machine guns top turret made small pieces wire April 1986 151 RD PICK Tell dealer want experIence fun canard flying Its easIest beat available call 600-826-042 toll free ORDERS ONLY ST CROIX MODELS OX 279 0 PARK FALLS WI 54552 S aV0 Old limer0 psrtS 0jqU La syatteS Chel1WOlFrom this. - to riorS Point6 InltioZ Engine Parts Only Over 600 items Send $200 current catalog PRO TECHTOR PRO GMOUNT painted black finishing touches have put its time attach engines Make sure put offset washers under both engines per plans assure proper line tension have doubts about engines put stronger inboard side After mounting engines check sure model balances CG point shown plans Balancing front point nose-heaviness okay add nose weight balances aft tail-heaviness Flying Use 35-ft steel lines Start inboard engine first outboard doesnt hurt run outboard engine tad rich side both engines running top off fuel inboard engine helps ensure outboard engine will run out fuel first both engines running model will jump air after short takeoff run flies fairly fast reasonably maneuverable model has no problem flying engine although maneuvers should attempted stopped model designed use two 049 Cox Babe Bee engines though other va rieties Cox 049 engines could sub stituted fact pictures show different engines first day test flying Babe Bees developed fuel leak replaced Babe Bees two other Cox 049s Black Widow Dragon fly replacements provided some extra power longer running times though no doubt plane would fly almost well Babe Bees model has met expecta tions enjoy sound two engines synch ability model make fast laps ground holding downelevator before taking off Twins lot fun model easy way try twin minimum investment FF Indoor/Tenny Continued page 74 prop driven few turns short motor sure problem caused shaft/spar joint having brok en loose Correct other problems find tweaking wherever necessary Automatic-centering hooks can made ways favorite shown Figure 2 side view shows traditional round hook shaft centerline passing through center hook end view shows form back edge hook curve bend tends force rubber toward center hook rather riding up crooked knot hook easily formed using round nose pliers make round hook Dashed lines side view show grip hook conventional needle-nose duck-bill pliers form S curve Align tips round-nose pliers shaft centerline twist clock wise make 5 curve take two tries get just right curve since music wire tends spring back After getting 5 curve just right inspect hook closely sure alignment has changed Use prop-pitch gauge measure pitch both blades sure both blades same angle gauge adjustable check pitch angles two three places blade sure blade twist equal both blades photos shows adjustable prop-pitch gauge being used check setting torque-variable-pitch prop care make own gauge note following features 1 The prop shaft provided fixed reference point insure exact meas urements 2 Provision made measure blade angle one-inch intervals Both blades must checked same radius angles must match closely 3 The blade-angle protractor should have increments degree con structed solidly enough insure repeat able measurements Repairs made damaged prop blades must carefully made avoid changes stiffness structure particular application skin glue fracture prop spar can affect flaring char acteristics prop Cyanoacrylate glue can also stiffen structure unless used sparingly Finally damaged all-balsa blades must very carefully repaired restore exact blade shape Two other photos show two extremes illustrate concepts involved Boston ian prop very deep camber curv ature Any damage changes camber will obviously affect well prop runs will incautious application glue shrinks thereby pulling additional camber photo Stan Chiltons Easy Bs gives clear view full-length prop spars Stan uses very soft light wood sanded very thin prop blades full-length spar necessary control blades under power allow model ceilingscrub damaging prop blades Repair type prop very delicate must done block used build prop initially Next time prop wobble issue will carried construction techniques minimize prop wobble other ineffi ciencies Bud Tenny PO Box S4S Richardson TX 75080 Humminbird/Caton Continued page 80 use straightedge find mark atop centerline tube lay straight piece wood almost thickness pylon along top centerline sight down toward tail aid checking alignment satisfied mark side straightedge cut through tube pylon will fit hole Note part tube above tank com partment should cut walls pylon will have fitted top tube area two spruce supports straddling tank compartment very important step setting proper incidence pylon Measure top rear pylon centerline side tube rear 152 Model Aviation TRANSMITTER CASE. trong thermo molded metal framed soft foam filled 901205 carryIng case best market SCans mitter Price 3250 Add 5250 shippIng Alaska Hawaii 450 ENGINE MOUNTS. fully machIned 6061T6 alsmlns brIghtly pellshof reteiSed mounting holes 60s 1205 Os 61000161 6581 OPt 60 VS 61 115 Os 60 50 90 Enya 60 los cyslos 122 Soya 90120 OS 120 foor sysles $25 Add 1150 ship Ca AK & III 5300 FIBERGLASS COWLS 70 cowls eelpants Sig Pica Top-Filte Jemco Nosen Pilot Stafford Radlais Behrens Garmhausen W E Tech other kits plans Onepiece laminated construction handlaid fIberglass strong hut lightweight Send BASE price list please Include names models interested parts br call between 9AM 9 PM EDT information COD ordering hope hear yout 5IBERGLASS ASTER 703 890-6017 Ospi MA 59 1 1st 530 Goodviec VA 24095 SASE FOR FREE cATALOGcA RESADD6 BERGERON ENTERPRISES 443 ROBERTAFULLERTON CA 92632 us can get completely true-running prop single bearing Shaft/spar misalign ment can spotted easily side as