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NO OCR TEXT Ill also introduce new method finishing saves weight Whats purpose get habit thinking terms weight reduction CONSTRUCTION Wing suggest start wing since timeconsuming build make straight wing need have straight flat building surface Lay out wing plan tape down Build 10 support jigs a easiest way make cut sheet two inches wide lengthwise Mark off 2-inch widths cut 20 pieces Zona saw miter box Make braces same manner cut 1-inch squares Slice 1-inch squares diagonal fmished should have 20 triangles Assemble jigs gluing two triangular braces horizontal leg brace Take care edge brace lines up edge leg square set vertical plate jig against braces align end horizontal leg glue end product L-shaped bracket becomes support jig wing frame Place two jigs end wing plan lining up last rib suggest place right triangle directly over outer rib line burt jig up vertical edge Tape jig place repeat other three jigs jig nearest make mark two inches off work surface same jig other wingtip Stick pin marks run thread over other mark Carefully measure along thread see work surface really flat Lets assume center wing surface lower tips mark center jigs 2 inches See method works Wherever place jig measure against datum thread mark accordingly Place two jigs centerline wingone leading edge trailing edge Go out about halfway wing place jigs along leading trading edges Carefully set leading edge trailing edge balsa place pin centerline jigs Lets cut some ribs two ways to cut root tip template A2 plywood stack bunch balsa blanks between templates bolt together sand away Use Zona saw cut leading edge spar notches unbolt number ribs match drawing Another way use computer program correctly size rib root rib NACA 0015 tip NACA 0018 Print ribs cut paper Use rubber cement glue paper template balsa Place another 1/16 sheet under first carefully cut out rib now have two ribs cut template simple Peel paper off clean off excess rubber cement No matter method use carefully remove excess center ribs leaving about around edges Type CL Precision Aerobatics Wingspan 51 inches Engine 40 -46 glow Flying Weight 35 40 ounces Construction Built-up Covering/finish Silkspan dope Slide tip ribs place tack-glue trailing edge Set next rib place using right triangle line up rib over drawing assure rib vertical Continue until ribs place Glue leading trailing edges ribs Measure cut lay top bottom spars glue place plans call four-inch bellcrank installed want use three-inch thats OK highly recommend using four-inch bellcrank made carbon fiber because its superior strength light weight Cut 1/i6 brass copper tubing two-inch lengths Insert leadout wire through tubing letting about six inches hang out end Grip tubing center needle-nose pliers slowly bend tubing 900 both ends pointing same direction Insert U-shaped tubing through leadout hole bellcrani February 1997 27 Computer-generated rib patterns glued 1/16 balsa trimmed shape Alternate method stack rib blanks sand shape Wing jigs place small triangle used align ribs plans assure vertical Fuselage cheek blocks shaped hollowed prior final installation short leg hole needle-nose pliers come back about inch end upper horizontal leg Carefully bend tip down about 300 same lower leg bend tip up about 300 Bring leadout wire together wrap soft copper wire about 1 inches Trim off short piece leadout wire epoxy wrapped wire instead soldering light-but-very-strong way install bellcrank wing Cut two right-triangle pieces /6 balsa Make short leg inch long leg 1 inches long short leg make notch round file just large enough center post bellcrank Place notch away long leg Glue bottom wedge against spar inboard root rib Let little wood hang below rib outline finish-sanding Install belicrank shown plans pulling leadouts through ribs tip Center belicrank centerline root rib place second wedge place Let little stick up can sand contour rib strength comes apply top bottom center sheeting pull force flying will distributed along spars sheeting Cut install bottom trailing edge sheeting Install vertical-grain /16 balsa web sheeting four rib bays left right root ribs Cut glue top trailing edge sheeting place Temporarily install flap control horn Cut piece /8 music wire about seven inches long put 800 bend inch end File flat spot leg goes through bellcrank Install pushrod secure wheel collar Make sure setscrew tightens against flat spot Cut another piece 1/8 music wire about five inches long put 900 bend about inch end Put short end control horn Now bring two pieces pushrod together wrap soft copper wire sure bellcrank square root rib control horn vertical Double-check everything solder pieces together Remove finished pushrod clean solder joint sure rust doesnt set brush coat clear dope solder joint re-install bellcrank time really secure wheel collar place small dab glue over setscrew sure doesnt come off Now time go ahead glue leading edge sheeting top bottom spars Lightly mist sheeting watch curl down leading edge no great trick let water stress-relieve side sheeting Gently pull balsa leading edge glue place After four pieces have glued place put wing back jig check warps really important wing free twist As soon sure everything straight cut install paneling covers last two ribs bottom first since will difficult done install center section sheeting capstrips Remove wing jig finish bottom center section capstrips Congratulations just finished strong wing free warps flaps completely built-up Notice area flap horn attaches flap box horn glued place final installation build box start sheet balsa cut shown plans Cover top bottom opening A6 plywood about wider opening Finish trim A6 balsa sides plywood Insert box flap framework finish building shown Cover entire flap A2 balsa Cut notch slots hinges Sand leading trailing edges clean half-round shape Adjustable leadout guides simple build must-have item drawing gives information needed build guide wingtip weight box recommend take time building two items install adjustable leadout guide draw wingtip outline about 1A inch oversize cut shape cut wingtip half lengthwise Tape two pieces together place guide inside tip Draw outline separate pieces carefully carve out guide seat about halfway through tip 28 Model Aviation s stab elevator rudder covered lightweight carbon-fiber matte Adds stiffness does shrink Matte applied nitrate dope Author recommends Sig sanding sealer finish base followed gray dope color Lucky Pyatt preps Next Step its first flight authors coach Bob Whitely holding model 1 B S 1/4 IN BALSA STRIP IllIIN SIFT BALSA LIBIIING GROG-WINGTIP MObIl lAD CUR FROM BIN SB 001110ifF{-~1 F DIN SRT BALSA WINGTIP1U F 71I BISIUSSABLE LOBDOUT GUIDEFIF-1- STE OTFAILIF-IFI I~r- {FI SIN SN BALSA FRAMEF F F III j 0SI[101BRIOFSFA0IF [v32][b-1-10-1-10]]F 11 SIDSISINBALSSRDDBIDCF\ J /A -____________ EOEEO SORO $1110 RISE ___ F - ISIS IT 001110 FlF SN EN OBIAB IRBAL IS 5 1 IS SOUSA FOFOTOPS 1 5 IN OSA FONROOL SOWN1 0 5 SOT BALSA WITSCENTRO EIISOS 1 5 55 DO ISINROOL IICOOED TOP B SET RITA STEIN SOT BOLOS ID IN FLU TOP OSTIGAOF IllSI ID S SOT TURBINE SOS TO CLOSE UCISGESUE DDTAILF S S IN SIlT ORIOn CI SOLSEF S OS 5001 10 IS OST BALSA SIDING 1 -COGEB GORE SIDES SI RUSSIA ISSLOT FOR LTADIUSEUORISIS 10 IN SB BALSA DO 55 B N AS SOUSAU S GIA SPINNER S S SD SHACk FLOOR DOSE TSSU S ART 5 lOIN SlIT RIESAI HIS FLU SEGA RING F1 ODIN OH ADAISA USEND BOUSTSIA INSUT BALSA DORSAL 10 SPAS SIESAIS FLY EUSUE/ 101 - SD SN SAT IlIAC F - F F EU ITS PUTITOF SOXI S S IS F-LEHOSUT WSHL IISIlT BAlSA SPAUBSlOIS DIATBINE- EI ITS ALSIC WIHF rS SIID SOT BOUSA EDT H DOT4 1101SF U_____F 4-H USA FRAME150355 SLOT STEEL OS NSLGN CAPS S 0 IS SD SAUNA RUSSINGS IN DUD TIlL WhEEL KIA AD S S ERA RUSS HOER-I S IS GSA AG SIC WIRRSLOT COD CSNTSOU HOOS WITH lUST AND ISFOWUSOUR SN DIR rEAM WRERUS I ID IN SOT PLO DOUDGEE ENDS U HF _______ F SPUN AREA FOSADJUSTABLE LEODOUT GISITIE FLAP lOON 1101111] 1 Fr 0 w 0 0 0 w 0 0 IKON NWST Since 1977 IKON offers largest selection qiant scale kits world order kits call 1-800-327-7198 catalog fine kits send $4 00 1 A5lAS Sax Tax Safe Easy RC Flying has favorite beginning pilots instructors six step tested program completely presented easy understand guide Chapters include Aerodynamics Selecting trainer plane c flight Performing take offs Landing pattems ly landing plane Leaming about Safety Cost $995 Tape halves together again place guide new seat Draw t/ slot separate halves cut smaller slot leadout wires Put two pieces together insert guide again time looking alignment slot opening Fix anything dont like move Separate two pieces again area leadout wires exit wingtip can become notched over time lets fix now Cut two pieces 1/M plywood about 3A6 wide long enough fit leadout slot Now wires will rub against hard surface instead soft balsa Fit weight box outboard wingtip sheet Place tip sheet against outboard rib trace outline rib Cut wingtip bit larger outline can finish-sand once sheet glued place Tail Surfaces Building stabilizer elevators rudder straightforward process Use flap horn detail build horn box elevators sure shape edges cut slots hinges After through constructing flaps stab elevators rudder brush coat nitrate dope help keep moisture out Fuselage Select piece /8 balsa light possible Strength stiffness balsa sheeting can mean greater weight choose very light piece fuselage box finished very strong box indeed Use long straightedge scribe line along top edge sheet reference line Draw centerline engine down length fuselage Lay out spacing engine mounts mark same wing stabilizer locations careful since part straightness finished model Finish marking excess area behind wing cut out Use razor plane trim excess wood off top sheeting finished measure everything again correct alignment problems now Cut Yt6 plywood doublers shown plans dont glue place just yet Lay fuselage sheet over plans mark out balsa webbing will go cut half-notches webbing Building Flying RC Sailpianes Electric Gliders explores intricacies different type RJC flying Chapters include Landing methods Thermal flying Slope soaring Operating electric motors power systems Choosing batteries charging Building tips techniques Cost $1195 Call Nighthawk Publishing 1-8WJ-390-HAWK Send Check Money Order P 0 Box 15019 Colorado Springs CO 80935 intersects use file 1/16 wide cutting teeth edge Glue webbing place inboard plywood doubler Install glue engine mounts place Place outboard plywood doubler fuselage glue yet Mark remove plywood engine mounting lugs will glue place Cut install /l6 aluminum pads slightly larger mounting lugs engine Glue pads maple engine mounts lay out mounting holes engine drill holes Install 4-40 blind nuts inboard side Bolt engine place install prop spinner pencil hand follow top curve spinner draw top part fuselage side Use pattern plans get bottom curve place Remove engine assembly cut off excess wood Rough-cut 3/4 balsa cheeks shape tack-glue place use just few drops glue must able remove blocks hollow out after rough shaping finished Mark location fuel tank outboard cheek Give yourself about 46 excess clearance tank adjustment Remove cheeks cut out area fuel tank grind out excess balsa Glue /t6 balsa siding fuselage trim out area wing Glue cheeks place finish-sand shape Finish Look over pieces model satisfied apply coat nitrate dope parts Let set couple hours apply second coat Let set overnight sand fine-grit paper wing can covered several different products 000-weight silkspan finish silkspan sand wing 400 wet-or-dry paper Cut silkspan size dampen place outboard-bottom wing panel Use nitrate dope thinned 50% applied around edges silkspan Gently smooth out wrinldes needed Turn wing over apply silkspan same way outboard-top wing panel Overlap silkspan about along leading edge Use mister prevent bottom drying too soon Allow dry watch trailing edge warps see creeping use mister dampen RIC Sport Competition Aerobatics i nis comprehensive manual takes pilot exciting world RC aerobatics intricacies aerobatic flight presented easy understand steps have proven time ai again under actual training conditions Chapters include Choosing aerobatic airplanes Radio selection Adiusting precisely trimming airplanes ral acrobatic maneuvers detailed instructions Contest preparation actual competition tips order now pocket guide containing reproduction of acrobatic maneuvers will includedfree purchase Actual price $299 Cost $1395 Including yourfree pocket guide Shipping & Handling charge $200 added book purchased 30 Model Aviation IACE 1/4 SCALE 80 REAR WIN SPEEDSTER 1/4 Sc WACO UPF-7 1/5 SCALE 73 MONOCOUPE D-145 1/4 SCALE 96 side pulling Repeat process inboard panels After everything has dried warps have corrected apply coat thinned nitrate dope wing surface Allow dry couple hours sand lightly remove fuzz Apply coat open bays wing panels area bit porous requires second coat seal better other parts Instead using silkspan recommend get two square yards -ounce carbon-fiber matte product has no grain will shrink also recommend cut out exacfly size needed part Start flaps Use thinned nitrate apply matte Start end brush until finished Remember stuff does shrink can let side dry before applying other side Finish off stab elevators rudder fuselage up line cheeks end cheeks get done after wing cheeks installed Sand parts down 320 wet-ordry paper used dry careful sand through along edges Use hand check smoothness over matted surfaces roughness gone can apply sanding sealer recommend using Sig brand because takes less get job done Apply sealer surfaces including wing butyrate dope watch warping paint dries Let first coat sealer set overnight Sand off 320 wet-or-dry paper Dont get too aggressive sanding want take off powder sealer Its much easier apply finish model its parts Apply second coat sealer let dry overnight time use small sanding blocks take off sealer get flat surface back flat after sealer has brushed Hold sanded surfaces up light souree look shiny spots indicates areas yet sanded see very flat non-reflective spots have sanded through wood Sand shiny spots away apply sealer flat spots Keep sanding until piece has velvet shine smooth texture Assembly Now parts pretty much finished Did find easier work model still pieces hope Install landing gear fuselage bolt place Set fuselage upside down workbench Make sure sides vertical brace place since will moving wing out few times Turn wing over insert fuselage Brace wing check level across wing fuselage Keep moving things around until sure wing perfect alignment fuselage Check again check again can get flying buddies help out Once absolutely sure everything straight glue wing place Before installing stabilizer need turn model over brace itso wing level both directions Robart leveling tool made just Once have wing fuselage well braced put long level top fuselage bubble should reading level Place stabilizer slot put level spanwise Measure distance trailing edge stab tip trailing edge wing Shift stab until sides equal Tilt stab until bubble reads level tack-glue stab place Double-check everything glue place installing rudder make sure fuselage vertical Use right triangle check rudder placement glue place Glue fuselage cheeks place finish matte sanding sealer Cut glue inch sheet used form canopy long turtledeck same fur rudder dorsal fin Apply finish cheeks Fillets Ah yes fillets method really works Prepare work area surrounding -inch-wide masking tape about 3A6 away joint gets fillet material Use Sig Epoxolite mix directed Place fillet joints press down besure get air bubbles out mixture tool makes work chromeplated socket Use -inch socket small fillets -inch socket slightly larger Put socket six-inch extension start final shaping Start back fillet holding socket 450 angle off fuselage 450 forward Apply bit pressure socket pall toward TO ar * JJTS new 630 senes pneumatic retracts Robart have what Ktakes best gear mid large size model airplanes R/O jets Theyre easy other less reliable retracts Robart 630s feature compact lower profile lighter stronger construction * Certified Aircraft Performance Product * High Alloy Heat Treated Aluminum Frames * 1/2 Dia 4130 Alloy Steel Struts Included * 1/2 Bore Triple-Sealed Robart Air Cylinder * Positive Up-Lock & Down-Lock Mechanisms * Easily Adjustable Robart Split Lock Trunions * Great Flying Off Grass Paved Runways 1222 lb Models Available 900 850 straight offset 1050 nose gear See Dealer Contact Us Direct Robart Manufacturing Inc ROBox 1247 Dept StCharles IL 60174 Phone630-584-7616 E-mail robart@robartcom February 1997 31 you con find right stuff web @ http I/wwwrobartcom years OPS Engines have snatched top spot European competition after anotherclear proof perform beautifully under pressure Thats good know whether aim cut loose spectacular aerobatics. outshine competitors speed skill. christen just-completed giant scale project. simply get through first solo flight piece Unprecedented manufacturing quality key OPS production facility Italy ranks among P/C hobbys finest expert technicianswho ALL champion modelers design operate own cuffing-edge equipment Now improved distribution channels bringing OPS engines parts accessories service hundreds retailers nationwide. including near Power plane OPS engine. youll truly ready anything location dealer nearest please call 1-800-682-8948 mention code number 041 iM GPS Distributed Exclusively GREAT PLANES MODEL DISTRIBUTORS PO Box 902t Champaign IL 61826-902t largest selection plans world iireasonable pricesk * FLYiNG SCALE $500 PO Box 90310 MA 2LSan Jose CA 95109-3310 Phone 408 292-3382 Tues CATALOGS *OLD TIMER/FREE FUGHT NOSTAI.GIA RUBBER POWERiCONTRO UNE/RADIO CONTROL $500 you satisfied look fillets remove tape As soon Epoxolite starts warm up harden apply water finger smooth out fillets Dont press hardjust steady pressure will knock down edge left tape really blend final fillet shape Let everything cure 24 hours sand 320 wet-or-dry used dry just roughen surface bit paint will stick part model now ready final inspection before first color coat Look surface over carefully Make sure rough areas shiny spots gone Wipe everything down damp cloth remove dust recommend use Sig Gray first color coat Apply just enough cover modelno Let everything dry inspect surfaces flaws show up Fix flaws sand color off next step optional Spray another coat gray make base coat cant help much final color choice design completely up few suggestions though Use stic automotive trim tape hard edges using butyrate dope spray light coat clear along edges let dry 1/2 hour prevents bleeding color under tape remove trip tape pull back over itself cleanly cut paint edge use epoxies sure let everything set minimum 24 hours before removing paper tape Assemble flaps elevator Install pushrod engine tank accessories turn flyable Stunt model Trimming nothing frustrating having poorly flying model knowing trim stability predictability Lets start trim process before first flight Pick up model canopy see balances balance point Center Gravity CG very close front wing model nose heavy Add weight until model balances just over spar location wing critical Extend CU perpendicular fuselage out inboard wingtip Adjust leadouts 1/2 inch behind line First Flight What look during first flight Wings level Sound engine flying inverted Pull model control input hand Lets start wings level Have someone watch model level wings outboard wing constantly up down twist outboard flap direction compensate outboard wing low both directions remove e wingtip weight Keep working problem until wings level right-side up upside down sound engine needs steady both directions engine goes fat inverted will have raise tank 1/g inch 32 Model Aviation l [r J JOHN POND - Old Time Plan Service VISA ACCEPTED mum Order $1000 flight until sound same both ways sure try several different types propellers different blends fuel get best running performance clear area get expert fliers ask help pull model handle tells model tracking properly pull very light model does respond control input check see engine pointing may have add little engine offset gain line tension Check again location leadouts Make sure behind models center gravity opposite model seems pulling much hardlook engine offset leadout location important part successful Precision Aerobatics flying balanced input control hand pull handle must same inside outside loops Again up control down control must equal find inside maneuvers require goodly amount input outside stuff too quick adjust elevator kwik-link fix Keep using adjustment until turning model feels fairly equal fine-tune turning use adjustments control handle might want work expert area also just make sure dont things backward whole purpose learning trim model allow practice Precision Aerobatics model will exactly what want want practicenot fight worry thing will stay air belief properly trimmed Next Step will help through Intermediate Advanced possibly Expert y Pyatt 9629 Hazard Garden Grove CA 92644 Sources Balsa Superior Aircraft Balsa 1202 Centralia St Unit G Hawaiian Gardens CA 90716 310 865-3220 Fax 310 860-0327 E-Mail balsa@ixnetcomcom Control System Hardware Control Specialities Corp 205 E Center St Box 68 Stockertown PA 18083 Engines Props Other Goodles T & L Specialities Box 6052 Torrance CA 90504 List Other Fliers Near PAMPA 158 Flying Cloud Isle Foster City CA 94404 Combat Fighter Series A-la Warthog.. Kit #4010 Length37 Inches Wingspan48 Inches Wing Area510 Sq Weight4-1/4 4-3/4 Lbs four Combat Fighter Series aircraft use 40 46 engine 4 channel radio 3 standard servos kits feature foam core wings balsa tail surfaces extensive hardware pack rugged PVC fuselage Simple modular construction allows planes built 8-10 hours Due popular request now have 30 minute video available featuring Combat Fighter Series kits video avaijable itself $795 purchased kit $500 F-15 Eagle #4015 Length38 Inches Wingspan44 Inches Wing Area510 Sq Weight4 4-1/2 Lbs Also Available F-16 FalKit #4016 F-18 HornetKit #4018 order send check money order $3995 plus $500 S&H per kit LDM Industries Inc PO Box 292396 Tampa FL 33687-2396 Phone 813 991-4277 Fax 813 991-4810 Florida residents add 6% sales tax VISA and MASTER CARD Accepted 1996 LDM Industries Inc February 1997 33

NO OCR TEXT Ill also introduce new method finishing saves weight Whats purpose get habit thinking terms weight reduction CONSTRUCTION Wing suggest start wing since timeconsuming build make straight wing need have straight flat building surface Lay out wing plan tape down Build 10 support jigs a easiest way make cut sheet two inches wide lengthwise Mark off 2-inch widths cut 20 pieces Zona saw miter box Make braces same manner cut 1-inch squares Slice 1-inch squares diagonal fmished should have 20 triangles Assemble jigs gluing two triangular braces horizontal leg brace Take care edge brace lines up edge leg square set vertical plate jig against braces align end horizontal leg glue end product L-shaped bracket becomes support jig wing frame Place two jigs end wing plan lining up last rib suggest place right triangle directly over outer rib line burt jig up vertical edge Tape jig place repeat other three jigs jig nearest make mark two inches off work surface same jig other wingtip Stick pin marks run thread over other mark Carefully measure along thread see work surface really flat Lets assume center wing surface lower tips mark center jigs 2 inches See method works Wherever place jig measure against datum thread mark accordingly Place two jigs centerline wingone leading edge trailing edge Go out about halfway wing place jigs along leading trading edges Carefully set leading edge trailing edge balsa place pin centerline jigs Lets cut some ribs two ways to cut root tip template A2 plywood stack bunch balsa blanks between templates bolt together sand away Use Zona saw cut leading edge spar notches unbolt number ribs match drawing Another way use computer program correctly size rib root rib NACA 0015 tip NACA 0018 Print ribs cut paper Use rubber cement glue paper template balsa Place another 1/16 sheet under first carefully cut out rib now have two ribs cut template simple Peel paper off clean off excess rubber cement No matter method use carefully remove excess center ribs leaving about around edges Type CL Precision Aerobatics Wingspan 51 inches Engine 40 -46 glow Flying Weight 35 40 ounces Construction Built-up Covering/finish Silkspan dope Slide tip ribs place tack-glue trailing edge Set next rib place using right triangle line up rib over drawing assure rib vertical Continue until ribs place Glue leading trailing edges ribs Measure cut lay top bottom spars glue place plans call four-inch bellcrank installed want use three-inch thats OK highly recommend using four-inch bellcrank made carbon fiber because its superior strength light weight Cut 1/i6 brass copper tubing two-inch lengths Insert leadout wire through tubing letting about six inches hang out end Grip tubing center needle-nose pliers slowly bend tubing 900 both ends pointing same direction Insert U-shaped tubing through leadout hole bellcrani February 1997 27 Computer-generated rib patterns glued 1/16 balsa trimmed shape Alternate method stack rib blanks sand shape Wing jigs place small triangle used align ribs plans assure vertical Fuselage cheek blocks shaped hollowed prior final installation short leg hole needle-nose pliers come back about inch end upper horizontal leg Carefully bend tip down about 300 same lower leg bend tip up about 300 Bring leadout wire together wrap soft copper wire about 1 inches Trim off short piece leadout wire epoxy wrapped wire instead soldering light-but-very-strong way install bellcrank wing Cut two right-triangle pieces /6 balsa Make short leg inch long leg 1 inches long short leg make notch round file just large enough center post bellcrank Place notch away long leg Glue bottom wedge against spar inboard root rib Let little wood hang below rib outline finish-sanding Install belicrank shown plans pulling leadouts through ribs tip Center belicrank centerline root rib place second wedge place Let little stick up can sand contour rib strength comes apply top bottom center sheeting pull force flying will distributed along spars sheeting Cut install bottom trailing edge sheeting Install vertical-grain /16 balsa web sheeting four rib bays left right root ribs Cut glue top trailing edge sheeting place Temporarily install flap control horn Cut piece /8 music wire about seven inches long put 800 bend inch end File flat spot leg goes through bellcrank Install pushrod secure wheel collar Make sure setscrew tightens against flat spot Cut another piece 1/8 music wire about five inches long put 900 bend about inch end Put short end control horn Now bring two pieces pushrod together wrap soft copper wire sure bellcrank square root rib control horn vertical Double-check everything solder pieces together Remove finished pushrod clean solder joint sure rust doesnt set brush coat clear dope solder joint re-install bellcrank time really secure wheel collar place small dab glue over setscrew sure doesnt come off Now time go ahead glue leading edge sheeting top bottom spars Lightly mist sheeting watch curl down leading edge no great trick let water stress-relieve side sheeting Gently pull balsa leading edge glue place After four pieces have glued place put wing back jig check warps really important wing free twist As soon sure everything straight cut install paneling covers last two ribs bottom first since will difficult done install center section sheeting capstrips Remove wing jig finish bottom center section capstrips Congratulations just finished strong wing free warps flaps completely built-up Notice area flap horn attaches flap box horn glued place final installation build box start sheet balsa cut shown plans Cover top bottom opening A6 plywood about wider opening Finish trim A6 balsa sides plywood Insert box flap framework finish building shown Cover entire flap A2 balsa Cut notch slots hinges Sand leading trailing edges clean half-round shape Adjustable leadout guides simple build must-have item drawing gives information needed build guide wingtip weight box recommend take time building two items install adjustable leadout guide draw wingtip outline about 1A inch oversize cut shape cut wingtip half lengthwise Tape two pieces together place guide inside tip Draw outline separate pieces carefully carve out guide seat about halfway through tip 28 Model Aviation s stab elevator rudder covered lightweight carbon-fiber matte Adds stiffness does shrink Matte applied nitrate dope Author recommends Sig sanding sealer finish base followed gray dope color Lucky Pyatt preps Next Step its first flight authors coach Bob Whitely holding model 1 B S 1/4 IN BALSA STRIP IllIIN SIFT BALSA LIBIIING GROG-WINGTIP MObIl lAD CUR FROM BIN SB 001110ifF{-~1 F DIN SRT BALSA WINGTIP1U F 71I BISIUSSABLE LOBDOUT GUIDEFIF-1- STE OTFAILIF-IFI I~r- {FI SIN SN BALSA FRAMEF F F III j 0SI[101BRIOFSFA0IF [v32][b-1-10-1-10]]F 11 SIDSISINBALSSRDDBIDCF\ J /A -____________ EOEEO SORO $1110 RISE ___ F - ISIS IT 001110 FlF SN EN OBIAB IRBAL IS 5 1 IS SOUSA FOFOTOPS 1 5 IN OSA FONROOL SOWN1 0 5 SOT BALSA WITSCENTRO EIISOS 1 5 55 DO ISINROOL IICOOED TOP B SET RITA STEIN SOT BOLOS ID IN FLU TOP OSTIGAOF IllSI ID S SOT TURBINE SOS TO CLOSE UCISGESUE DDTAILF S S IN SIlT ORIOn CI SOLSEF S OS 5001 10 IS OST BALSA SIDING 1 -COGEB GORE SIDES SI RUSSIA ISSLOT FOR LTADIUSEUORISIS 10 IN SB BALSA DO 55 B N AS SOUSAU S GIA SPINNER S S SD SHACk FLOOR DOSE TSSU S ART 5 lOIN SlIT RIESAI HIS FLU SEGA RING F1 ODIN OH ADAISA USEND BOUSTSIA INSUT BALSA DORSAL 10 SPAS SIESAIS FLY EUSUE/ 101 - SD SN SAT IlIAC F - F F EU ITS PUTITOF SOXI S S IS F-LEHOSUT WSHL IISIlT BAlSA SPAUBSlOIS DIATBINE- EI ITS ALSIC WIHF rS SIID SOT BOUSA EDT H DOT4 1101SF U_____F 4-H USA FRAME150355 SLOT STEEL OS NSLGN CAPS S 0 IS SD SAUNA RUSSINGS IN DUD TIlL WhEEL KIA AD S S ERA RUSS HOER-I S IS GSA AG SIC WIRRSLOT COD CSNTSOU HOOS WITH lUST AND ISFOWUSOUR SN DIR rEAM WRERUS I ID IN SOT PLO DOUDGEE ENDS U HF _______ F SPUN AREA FOSADJUSTABLE LEODOUT GISITIE FLAP lOON 1101111] 1 Fr 0 w 0 0 0 w 0 0 IKON NWST Since 1977 IKON offers largest selection qiant scale kits world order kits call 1-800-327-7198 catalog fine kits send $4 00 1 A5lAS Sax Tax Safe Easy RC Flying has favorite beginning pilots instructors six step tested program completely presented easy understand guide Chapters include Aerodynamics Selecting trainer plane c flight Performing take offs Landing pattems ly landing plane Leaming about Safety Cost $995 Tape halves together again place guide new seat Draw t/ slot separate halves cut smaller slot leadout wires Put two pieces together insert guide again time looking alignment slot opening Fix anything dont like move Separate two pieces again area leadout wires exit wingtip can become notched over time lets fix now Cut two pieces 1/M plywood about 3A6 wide long enough fit leadout slot Now wires will rub against hard surface instead soft balsa Fit weight box outboard wingtip sheet Place tip sheet against outboard rib trace outline rib Cut wingtip bit larger outline can finish-sand once sheet glued place Tail Surfaces Building stabilizer elevators rudder straightforward process Use flap horn detail build horn box elevators sure shape edges cut slots hinges After through constructing flaps stab elevators rudder brush coat nitrate dope help keep moisture out Fuselage Select piece /8 balsa light possible Strength stiffness balsa sheeting can mean greater weight choose very light piece fuselage box finished very strong box indeed Use long straightedge scribe line along top edge sheet reference line Draw centerline engine down length fuselage Lay out spacing engine mounts mark same wing stabilizer locations careful since part straightness finished model Finish marking excess area behind wing cut out Use razor plane trim excess wood off top sheeting finished measure everything again correct alignment problems now Cut Yt6 plywood doublers shown plans dont glue place just yet Lay fuselage sheet over plans mark out balsa webbing will go cut half-notches webbing Building Flying RC Sailpianes Electric Gliders explores intricacies different type RJC flying Chapters include Landing methods Thermal flying Slope soaring Operating electric motors power systems Choosing batteries charging Building tips techniques Cost $1195 Call Nighthawk Publishing 1-8WJ-390-HAWK Send Check Money Order P 0 Box 15019 Colorado Springs CO 80935 intersects use file 1/16 wide cutting teeth edge Glue webbing place inboard plywood doubler Install glue engine mounts place Place outboard plywood doubler fuselage glue yet Mark remove plywood engine mounting lugs will glue place Cut install /l6 aluminum pads slightly larger mounting lugs engine Glue pads maple engine mounts lay out mounting holes engine drill holes Install 4-40 blind nuts inboard side Bolt engine place install prop spinner pencil hand follow top curve spinner draw top part fuselage side Use pattern plans get bottom curve place Remove engine assembly cut off excess wood Rough-cut 3/4 balsa cheeks shape tack-glue place use just few drops glue must able remove blocks hollow out after rough shaping finished Mark location fuel tank outboard cheek Give yourself about 46 excess clearance tank adjustment Remove cheeks cut out area fuel tank grind out excess balsa Glue /t6 balsa siding fuselage trim out area wing Glue cheeks place finish-sand shape Finish Look over pieces model satisfied apply coat nitrate dope parts Let set couple hours apply second coat Let set overnight sand fine-grit paper wing can covered several different products 000-weight silkspan finish silkspan sand wing 400 wet-or-dry paper Cut silkspan size dampen place outboard-bottom wing panel Use nitrate dope thinned 50% applied around edges silkspan Gently smooth out wrinldes needed Turn wing over apply silkspan same way outboard-top wing panel Overlap silkspan about along leading edge Use mister prevent bottom drying too soon Allow dry watch trailing edge warps see creeping use mister dampen RIC Sport Competition Aerobatics i nis comprehensive manual takes pilot exciting world RC aerobatics intricacies aerobatic flight presented easy understand steps have proven time ai again under actual training conditions Chapters include Choosing aerobatic airplanes Radio selection Adiusting precisely trimming airplanes ral acrobatic maneuvers detailed instructions Contest preparation actual competition tips order now pocket guide containing reproduction of acrobatic maneuvers will includedfree purchase Actual price $299 Cost $1395 Including yourfree pocket guide Shipping & Handling charge $200 added book purchased 30 Model Aviation IACE 1/4 SCALE 80 REAR WIN SPEEDSTER 1/4 Sc WACO UPF-7 1/5 SCALE 73 MONOCOUPE D-145 1/4 SCALE 96 side pulling Repeat process inboard panels After everything has dried warps have corrected apply coat thinned nitrate dope wing surface Allow dry couple hours sand lightly remove fuzz Apply coat open bays wing panels area bit porous requires second coat seal better other parts Instead using silkspan recommend get two square yards -ounce carbon-fiber matte product has no grain will shrink also recommend cut out exacfly size needed part Start flaps Use thinned nitrate apply matte Start end brush until finished Remember stuff does shrink can let side dry before applying other side Finish off stab elevators rudder fuselage up line cheeks end cheeks get done after wing cheeks installed Sand parts down 320 wet-ordry paper used dry careful sand through along edges Use hand check smoothness over matted surfaces roughness gone can apply sanding sealer recommend using Sig brand because takes less get job done Apply sealer surfaces including wing butyrate dope watch warping paint dries Let first coat sealer set overnight Sand off 320 wet-or-dry paper Dont get too aggressive sanding want take off powder sealer Its much easier apply finish model its parts Apply second coat sealer let dry overnight time use small sanding blocks take off sealer get flat surface back flat after sealer has brushed Hold sanded surfaces up light souree look shiny spots indicates areas yet sanded see very flat non-reflective spots have sanded through wood Sand shiny spots away apply sealer flat spots Keep sanding until piece has velvet shine smooth texture Assembly Now parts pretty much finished Did find easier work model still pieces hope Install landing gear fuselage bolt place Set fuselage upside down workbench Make sure sides vertical brace place since will moving wing out few times Turn wing over insert fuselage Brace wing check level across wing fuselage Keep moving things around until sure wing perfect alignment fuselage Check again check again can get flying buddies help out Once absolutely sure everything straight glue wing place Before installing stabilizer need turn model over brace itso wing level both directions Robart leveling tool made just Once have wing fuselage well braced put long level top fuselage bubble should reading level Place stabilizer slot put level spanwise Measure distance trailing edge stab tip trailing edge wing Shift stab until sides equal Tilt stab until bubble reads level tack-glue stab place Double-check everything glue place installing rudder make sure fuselage vertical Use right triangle check rudder placement glue place Glue fuselage cheeks place finish matte sanding sealer Cut glue inch sheet used form canopy long turtledeck same fur rudder dorsal fin Apply finish cheeks Fillets Ah yes fillets method really works Prepare work area surrounding -inch-wide masking tape about 3A6 away joint gets fillet material Use Sig Epoxolite mix directed Place fillet joints press down besure get air bubbles out mixture tool makes work chromeplated socket Use -inch socket small fillets -inch socket slightly larger Put socket six-inch extension start final shaping Start back fillet holding socket 450 angle off fuselage 450 forward Apply bit pressure socket pall toward TO ar * JJTS new 630 senes pneumatic retracts Robart have what Ktakes best gear mid large size model airplanes R/O jets Theyre easy other less reliable retracts Robart 630s feature compact lower profile lighter stronger construction * Certified Aircraft Performance Product * High Alloy Heat Treated Aluminum Frames * 1/2 Dia 4130 Alloy Steel Struts Included * 1/2 Bore Triple-Sealed Robart Air Cylinder * Positive Up-Lock & Down-Lock Mechanisms * Easily Adjustable Robart Split Lock Trunions * Great Flying Off Grass Paved Runways 1222 lb Models Available 900 850 straight offset 1050 nose gear See Dealer Contact Us Direct Robart Manufacturing Inc ROBox 1247 Dept StCharles IL 60174 Phone630-584-7616 E-mail robart@robartcom February 1997 31 you con find right stuff web @ http I/wwwrobartcom years OPS Engines have snatched top spot European competition after anotherclear proof perform beautifully under pressure Thats good know whether aim cut loose spectacular aerobatics. outshine competitors speed skill. christen just-completed giant scale project. simply get through first solo flight piece Unprecedented manufacturing quality key OPS production facility Italy ranks among P/C hobbys finest expert technicianswho ALL champion modelers design operate own cuffing-edge equipment Now improved distribution channels bringing OPS engines parts accessories service hundreds retailers nationwide. including near Power plane OPS engine. youll truly ready anything location dealer nearest please call 1-800-682-8948 mention code number 041 iM GPS Distributed Exclusively GREAT PLANES MODEL DISTRIBUTORS PO Box 902t Champaign IL 61826-902t largest selection plans world iireasonable pricesk * FLYiNG SCALE $500 PO Box 90310 MA 2LSan Jose CA 95109-3310 Phone 408 292-3382 Tues CATALOGS *OLD TIMER/FREE FUGHT NOSTAI.GIA RUBBER POWERiCONTRO UNE/RADIO CONTROL $500 you satisfied look fillets remove tape As soon Epoxolite starts warm up harden apply water finger smooth out fillets Dont press hardjust steady pressure will knock down edge left tape really blend final fillet shape Let everything cure 24 hours sand 320 wet-or-dry used dry just roughen surface bit paint will stick part model now ready final inspection before first color coat Look surface over carefully Make sure rough areas shiny spots gone Wipe everything down damp cloth remove dust recommend use Sig Gray first color coat Apply just enough cover modelno Let everything dry inspect surfaces flaws show up Fix flaws sand color off next step optional Spray another coat gray make base coat cant help much final color choice design completely up few suggestions though Use stic automotive trim tape hard edges using butyrate dope spray light coat clear along edges let dry 1/2 hour prevents bleeding color under tape remove trip tape pull back over itself cleanly cut paint edge use epoxies sure let everything set minimum 24 hours before removing paper tape Assemble flaps elevator Install pushrod engine tank accessories turn flyable Stunt model Trimming nothing frustrating having poorly flying model knowing trim stability predictability Lets start trim process before first flight Pick up model canopy see balances balance point Center Gravity CG very close front wing model nose heavy Add weight until model balances just over spar location wing critical Extend CU perpendicular fuselage out inboard wingtip Adjust leadouts 1/2 inch behind line First Flight What look during first flight Wings level Sound engine flying inverted Pull model control input hand Lets start wings level Have someone watch model level wings outboard wing constantly up down twist outboard flap direction compensate outboard wing low both directions remove e wingtip weight Keep working problem until wings level right-side up upside down sound engine needs steady both directions engine goes fat inverted will have raise tank 1/g inch 32 Model Aviation l [r J JOHN POND - Old Time Plan Service VISA ACCEPTED mum Order $1000 flight until sound same both ways sure try several different types propellers different blends fuel get best running performance clear area get expert fliers ask help pull model handle tells model tracking properly pull very light model does respond control input check see engine pointing may have add little engine offset gain line tension Check again location leadouts Make sure behind models center gravity opposite model seems pulling much hardlook engine offset leadout location important part successful Precision Aerobatics flying balanced input control hand pull handle must same inside outside loops Again up control down control must equal find inside maneuvers require goodly amount input outside stuff too quick adjust elevator kwik-link fix Keep using adjustment until turning model feels fairly equal fine-tune turning use adjustments control handle might want work expert area also just make sure dont things backward whole purpose learning trim model allow practice Precision Aerobatics model will exactly what want want practicenot fight worry thing will stay air belief properly trimmed Next Step will help through Intermediate Advanced possibly Expert y Pyatt 9629 Hazard Garden Grove CA 92644 Sources Balsa Superior Aircraft Balsa 1202 Centralia St Unit G Hawaiian Gardens CA 90716 310 865-3220 Fax 310 860-0327 E-Mail balsa@ixnetcomcom Control System Hardware Control Specialities Corp 205 E Center St Box 68 Stockertown PA 18083 Engines Props Other Goodles T & L Specialities Box 6052 Torrance CA 90504 List Other Fliers Near PAMPA 158 Flying Cloud Isle Foster City CA 94404 Combat Fighter Series A-la Warthog.. Kit #4010 Length37 Inches Wingspan48 Inches Wing Area510 Sq Weight4-1/4 4-3/4 Lbs four Combat Fighter Series aircraft use 40 46 engine 4 channel radio 3 standard servos kits feature foam core wings balsa tail surfaces extensive hardware pack rugged PVC fuselage Simple modular construction allows planes built 8-10 hours Due popular request now have 30 minute video available featuring Combat Fighter Series kits video avaijable itself $795 purchased kit $500 F-15 Eagle #4015 Length38 Inches Wingspan44 Inches Wing Area510 Sq Weight4 4-1/2 Lbs Also Available F-16 FalKit #4016 F-18 HornetKit #4018 order send check money order $3995 plus $500 S&H per kit LDM Industries Inc PO Box 292396 Tampa FL 33687-2396 Phone 813 991-4277 Fax 813 991-4810 Florida residents add 6% sales tax VISA and MASTER CARD Accepted 1996 LDM Industries Inc February 1997 33

NO OCR TEXT Ill also introduce new method finishing saves weight Whats purpose get habit thinking terms weight reduction CONSTRUCTION Wing suggest start wing since timeconsuming build make straight wing need have straight flat building surface Lay out wing plan tape down Build 10 support jigs a easiest way make cut sheet two inches wide lengthwise Mark off 2-inch widths cut 20 pieces Zona saw miter box Make braces same manner cut 1-inch squares Slice 1-inch squares diagonal fmished should have 20 triangles Assemble jigs gluing two triangular braces horizontal leg brace Take care edge brace lines up edge leg square set vertical plate jig against braces align end horizontal leg glue end product L-shaped bracket becomes support jig wing frame Place two jigs end wing plan lining up last rib suggest place right triangle directly over outer rib line burt jig up vertical edge Tape jig place repeat other three jigs jig nearest make mark two inches off work surface same jig other wingtip Stick pin marks run thread over other mark Carefully measure along thread see work surface really flat Lets assume center wing surface lower tips mark center jigs 2 inches See method works Wherever place jig measure against datum thread mark accordingly Place two jigs centerline wingone leading edge trailing edge Go out about halfway wing place jigs along leading trading edges Carefully set leading edge trailing edge balsa place pin centerline jigs Lets cut some ribs two ways to cut root tip template A2 plywood stack bunch balsa blanks between templates bolt together sand away Use Zona saw cut leading edge spar notches unbolt number ribs match drawing Another way use computer program correctly size rib root rib NACA 0015 tip NACA 0018 Print ribs cut paper Use rubber cement glue paper template balsa Place another 1/16 sheet under first carefully cut out rib now have two ribs cut template simple Peel paper off clean off excess rubber cement No matter method use carefully remove excess center ribs leaving about around edges Type CL Precision Aerobatics Wingspan 51 inches Engine 40 -46 glow Flying Weight 35 40 ounces Construction Built-up Covering/finish Silkspan dope Slide tip ribs place tack-glue trailing edge Set next rib place using right triangle line up rib over drawing assure rib vertical Continue until ribs place Glue leading trailing edges ribs Measure cut lay top bottom spars glue place plans call four-inch bellcrank installed want use three-inch thats OK highly recommend using four-inch bellcrank made carbon fiber because its superior strength light weight Cut 1/i6 brass copper tubing two-inch lengths Insert leadout wire through tubing letting about six inches hang out end Grip tubing center needle-nose pliers slowly bend tubing 900 both ends pointing same direction Insert U-shaped tubing through leadout hole bellcrani February 1997 27 Computer-generated rib patterns glued 1/16 balsa trimmed shape Alternate method stack rib blanks sand shape Wing jigs place small triangle used align ribs plans assure vertical Fuselage cheek blocks shaped hollowed prior final installation short leg hole needle-nose pliers come back about inch end upper horizontal leg Carefully bend tip down about 300 same lower leg bend tip up about 300 Bring leadout wire together wrap soft copper wire about 1 inches Trim off short piece leadout wire epoxy wrapped wire instead soldering light-but-very-strong way install bellcrank wing Cut two right-triangle pieces /6 balsa Make short leg inch long leg 1 inches long short leg make notch round file just large enough center post bellcrank Place notch away long leg Glue bottom wedge against spar inboard root rib Let little wood hang below rib outline finish-sanding Install belicrank shown plans pulling leadouts through ribs tip Center belicrank centerline root rib place second wedge place Let little stick up can sand contour rib strength comes apply top bottom center sheeting pull force flying will distributed along spars sheeting Cut install bottom trailing edge sheeting Install vertical-grain /16 balsa web sheeting four rib bays left right root ribs Cut glue top trailing edge sheeting place Temporarily install flap control horn Cut piece /8 music wire about seven inches long put 800 bend inch end File flat spot leg goes through bellcrank Install pushrod secure wheel collar Make sure setscrew tightens against flat spot Cut another piece 1/8 music wire about five inches long put 900 bend about inch end Put short end control horn Now bring two pieces pushrod together wrap soft copper wire sure bellcrank square root rib control horn vertical Double-check everything solder pieces together Remove finished pushrod clean solder joint sure rust doesnt set brush coat clear dope solder joint re-install bellcrank time really secure wheel collar place small dab glue over setscrew sure doesnt come off Now time go ahead glue leading edge sheeting top bottom spars Lightly mist sheeting watch curl down leading edge no great trick let water stress-relieve side sheeting Gently pull balsa leading edge glue place After four pieces have glued place put wing back jig check warps really important wing free twist As soon sure everything straight cut install paneling covers last two ribs bottom first since will difficult done install center section sheeting capstrips Remove wing jig finish bottom center section capstrips Congratulations just finished strong wing free warps flaps completely built-up Notice area flap horn attaches flap box horn glued place final installation build box start sheet balsa cut shown plans Cover top bottom opening A6 plywood about wider opening Finish trim A6 balsa sides plywood Insert box flap framework finish building shown Cover entire flap A2 balsa Cut notch slots hinges Sand leading trailing edges clean half-round shape Adjustable leadout guides simple build must-have item drawing gives information needed build guide wingtip weight box recommend take time building two items install adjustable leadout guide draw wingtip outline about 1A inch oversize cut shape cut wingtip half lengthwise Tape two pieces together place guide inside tip Draw outline separate pieces carefully carve out guide seat about halfway through tip 28 Model Aviation s stab elevator rudder covered lightweight carbon-fiber matte Adds stiffness does shrink Matte applied nitrate dope Author recommends Sig sanding sealer finish base followed gray dope color Lucky Pyatt preps Next Step its first flight authors coach Bob Whitely holding model 1 B S 1/4 IN BALSA STRIP IllIIN SIFT BALSA LIBIIING GROG-WINGTIP MObIl lAD CUR FROM BIN SB 001110ifF{-~1 F DIN SRT BALSA WINGTIP1U F 71I BISIUSSABLE LOBDOUT GUIDEFIF-1- STE OTFAILIF-IFI I~r- {FI SIN SN BALSA FRAMEF F F III j 0SI[101BRIOFSFA0IF [v32][b-1-10-1-10]]F 11 SIDSISINBALSSRDDBIDCF\ J /A -____________ EOEEO SORO $1110 RISE ___ F - ISIS IT 001110 FlF SN EN OBIAB IRBAL IS 5 1 IS SOUSA FOFOTOPS 1 5 IN OSA FONROOL SOWN1 0 5 SOT BALSA WITSCENTRO EIISOS 1 5 55 DO ISINROOL IICOOED TOP B SET RITA STEIN SOT BOLOS ID IN FLU TOP OSTIGAOF IllSI ID S SOT TURBINE SOS TO CLOSE UCISGESUE DDTAILF S S IN SIlT ORIOn CI SOLSEF S OS 5001 10 IS OST BALSA SIDING 1 -COGEB GORE SIDES SI RUSSIA ISSLOT FOR LTADIUSEUORISIS 10 IN SB BALSA DO 55 B N AS SOUSAU S GIA SPINNER S S SD SHACk FLOOR DOSE TSSU S ART 5 lOIN SlIT RIESAI HIS FLU SEGA RING F1 ODIN OH ADAISA USEND BOUSTSIA INSUT BALSA DORSAL 10 SPAS SIESAIS FLY EUSUE/ 101 - SD SN SAT IlIAC F - F F EU ITS PUTITOF SOXI S S IS F-LEHOSUT WSHL IISIlT BAlSA SPAUBSlOIS DIATBINE- EI ITS ALSIC WIHF rS SIID SOT BOUSA EDT H DOT4 1101SF U_____F 4-H USA FRAME150355 SLOT STEEL OS NSLGN CAPS S 0 IS SD SAUNA RUSSINGS IN DUD TIlL WhEEL KIA AD S S ERA RUSS HOER-I S IS GSA AG SIC WIRRSLOT COD CSNTSOU HOOS WITH lUST AND ISFOWUSOUR SN DIR rEAM WRERUS I ID IN SOT PLO DOUDGEE ENDS U HF _______ F SPUN AREA FOSADJUSTABLE LEODOUT GISITIE FLAP lOON 1101111] 1 Fr 0 w 0 0 0 w 0 0 IKON NWST Since 1977 IKON offers largest selection qiant scale kits world order kits call 1-800-327-7198 catalog fine kits send $4 00 1 A5lAS Sax Tax Safe Easy RC Flying has favorite beginning pilots instructors six step tested program completely presented easy understand guide Chapters include Aerodynamics Selecting trainer plane c flight Performing take offs Landing pattems ly landing plane Leaming about Safety Cost $995 Tape halves together again place guide new seat Draw t/ slot separate halves cut smaller slot leadout wires Put two pieces together insert guide again time looking alignment slot opening Fix anything dont like move Separate two pieces again area leadout wires exit wingtip can become notched over time lets fix now Cut two pieces 1/M plywood about 3A6 wide long enough fit leadout slot Now wires will rub against hard surface instead soft balsa Fit weight box outboard wingtip sheet Place tip sheet against outboard rib trace outline rib Cut wingtip bit larger outline can finish-sand once sheet glued place Tail Surfaces Building stabilizer elevators rudder straightforward process Use flap horn detail build horn box elevators sure shape edges cut slots hinges After through constructing flaps stab elevators rudder brush coat nitrate dope help keep moisture out Fuselage Select piece /8 balsa light possible Strength stiffness balsa sheeting can mean greater weight choose very light piece fuselage box finished very strong box indeed Use long straightedge scribe line along top edge sheet reference line Draw centerline engine down length fuselage Lay out spacing engine mounts mark same wing stabilizer locations careful since part straightness finished model Finish marking excess area behind wing cut out Use razor plane trim excess wood off top sheeting finished measure everything again correct alignment problems now Cut Yt6 plywood doublers shown plans dont glue place just yet Lay fuselage sheet over plans mark out balsa webbing will go cut half-notches webbing Building Flying RC Sailpianes Electric Gliders explores intricacies different type RJC flying Chapters include Landing methods Thermal flying Slope soaring Operating electric motors power systems Choosing batteries charging Building tips techniques Cost $1195 Call Nighthawk Publishing 1-8WJ-390-HAWK Send Check Money Order P 0 Box 15019 Colorado Springs CO 80935 intersects use file 1/16 wide cutting teeth edge Glue webbing place inboard plywood doubler Install glue engine mounts place Place outboard plywood doubler fuselage glue yet Mark remove plywood engine mounting lugs will glue place Cut install /l6 aluminum pads slightly larger mounting lugs engine Glue pads maple engine mounts lay out mounting holes engine drill holes Install 4-40 blind nuts inboard side Bolt engine place install prop spinner pencil hand follow top curve spinner draw top part fuselage side Use pattern plans get bottom curve place Remove engine assembly cut off excess wood Rough-cut 3/4 balsa cheeks shape tack-glue place use just few drops glue must able remove blocks hollow out after rough shaping finished Mark location fuel tank outboard cheek Give yourself about 46 excess clearance tank adjustment Remove cheeks cut out area fuel tank grind out excess balsa Glue /t6 balsa siding fuselage trim out area wing Glue cheeks place finish-sand shape Finish Look over pieces model satisfied apply coat nitrate dope parts Let set couple hours apply second coat Let set overnight sand fine-grit paper wing can covered several different products 000-weight silkspan finish silkspan sand wing 400 wet-or-dry paper Cut silkspan size dampen place outboard-bottom wing panel Use nitrate dope thinned 50% applied around edges silkspan Gently smooth out wrinldes needed Turn wing over apply silkspan same way outboard-top wing panel Overlap silkspan about along leading edge Use mister prevent bottom drying too soon Allow dry watch trailing edge warps see creeping use mister dampen RIC Sport Competition Aerobatics i nis comprehensive manual takes pilot exciting world RC aerobatics intricacies aerobatic flight presented easy understand steps have proven time ai again under actual training conditions Chapters include Choosing aerobatic airplanes Radio selection Adiusting precisely trimming airplanes ral acrobatic maneuvers detailed instructions Contest preparation actual competition tips order now pocket guide containing reproduction of acrobatic maneuvers will includedfree purchase Actual price $299 Cost $1395 Including yourfree pocket guide Shipping & Handling charge $200 added book purchased 30 Model Aviation IACE 1/4 SCALE 80 REAR WIN SPEEDSTER 1/4 Sc WACO UPF-7 1/5 SCALE 73 MONOCOUPE D-145 1/4 SCALE 96 side pulling Repeat process inboard panels After everything has dried warps have corrected apply coat thinned nitrate dope wing surface Allow dry couple hours sand lightly remove fuzz Apply coat open bays wing panels area bit porous requires second coat seal better other parts Instead using silkspan recommend get two square yards -ounce carbon-fiber matte product has no grain will shrink also recommend cut out exacfly size needed part Start flaps Use thinned nitrate apply matte Start end brush until finished Remember stuff does shrink can let side dry before applying other side Finish off stab elevators rudder fuselage up line cheeks end cheeks get done after wing cheeks installed Sand parts down 320 wet-ordry paper used dry careful sand through along edges Use hand check smoothness over matted surfaces roughness gone can apply sanding sealer recommend using Sig brand because takes less get job done Apply sealer surfaces including wing butyrate dope watch warping paint dries Let first coat sealer set overnight Sand off 320 wet-or-dry paper Dont get too aggressive sanding want take off powder sealer Its much easier apply finish model its parts Apply second coat sealer let dry overnight time use small sanding blocks take off sealer get flat surface back flat after sealer has brushed Hold sanded surfaces up light souree look shiny spots indicates areas yet sanded see very flat non-reflective spots have sanded through wood Sand shiny spots away apply sealer flat spots Keep sanding until piece has velvet shine smooth texture Assembly Now parts pretty much finished Did find easier work model still pieces hope Install landing gear fuselage bolt place Set fuselage upside down workbench Make sure sides vertical brace place since will moving wing out few times Turn wing over insert fuselage Brace wing check level across wing fuselage Keep moving things around until sure wing perfect alignment fuselage Check again check again can get flying buddies help out Once absolutely sure everything straight glue wing place Before installing stabilizer need turn model over brace itso wing level both directions Robart leveling tool made just Once have wing fuselage well braced put long level top fuselage bubble should reading level Place stabilizer slot put level spanwise Measure distance trailing edge stab tip trailing edge wing Shift stab until sides equal Tilt stab until bubble reads level tack-glue stab place Double-check everything glue place installing rudder make sure fuselage vertical Use right triangle check rudder placement glue place Glue fuselage cheeks place finish matte sanding sealer Cut glue inch sheet used form canopy long turtledeck same fur rudder dorsal fin Apply finish cheeks Fillets Ah yes fillets method really works Prepare work area surrounding -inch-wide masking tape about 3A6 away joint gets fillet material Use Sig Epoxolite mix directed Place fillet joints press down besure get air bubbles out mixture tool makes work chromeplated socket Use -inch socket small fillets -inch socket slightly larger Put socket six-inch extension start final shaping Start back fillet holding socket 450 angle off fuselage 450 forward Apply bit pressure socket pall toward TO ar * JJTS new 630 senes pneumatic retracts Robart have what Ktakes best gear mid large size model airplanes R/O jets Theyre easy other less reliable retracts Robart 630s feature compact lower profile lighter stronger construction * Certified Aircraft Performance Product * High Alloy Heat Treated Aluminum Frames * 1/2 Dia 4130 Alloy Steel Struts Included * 1/2 Bore Triple-Sealed Robart Air Cylinder * Positive Up-Lock & Down-Lock Mechanisms * Easily Adjustable Robart Split Lock Trunions * Great Flying Off Grass Paved Runways 1222 lb Models Available 900 850 straight offset 1050 nose gear See Dealer Contact Us Direct Robart Manufacturing Inc ROBox 1247 Dept StCharles IL 60174 Phone630-584-7616 E-mail robart@robartcom February 1997 31 you con find right stuff web @ http I/wwwrobartcom years OPS Engines have snatched top spot European competition after anotherclear proof perform beautifully under pressure Thats good know whether aim cut loose spectacular aerobatics. outshine competitors speed skill. christen just-completed giant scale project. simply get through first solo flight piece Unprecedented manufacturing quality key OPS production facility Italy ranks among P/C hobbys finest expert technicianswho ALL champion modelers design operate own cuffing-edge equipment Now improved distribution channels bringing OPS engines parts accessories service hundreds retailers nationwide. including near Power plane OPS engine. youll truly ready anything location dealer nearest please call 1-800-682-8948 mention code number 041 iM GPS Distributed Exclusively GREAT PLANES MODEL DISTRIBUTORS PO Box 902t Champaign IL 61826-902t largest selection plans world iireasonable pricesk * FLYiNG SCALE $500 PO Box 90310 MA 2LSan Jose CA 95109-3310 Phone 408 292-3382 Tues CATALOGS *OLD TIMER/FREE FUGHT NOSTAI.GIA RUBBER POWERiCONTRO UNE/RADIO CONTROL $500 you satisfied look fillets remove tape As soon Epoxolite starts warm up harden apply water finger smooth out fillets Dont press hardjust steady pressure will knock down edge left tape really blend final fillet shape Let everything cure 24 hours sand 320 wet-or-dry used dry just roughen surface bit paint will stick part model now ready final inspection before first color coat Look surface over carefully Make sure rough areas shiny spots gone Wipe everything down damp cloth remove dust recommend use Sig Gray first color coat Apply just enough cover modelno Let everything dry inspect surfaces flaws show up Fix flaws sand color off next step optional Spray another coat gray make base coat cant help much final color choice design completely up few suggestions though Use stic automotive trim tape hard edges using butyrate dope spray light coat clear along edges let dry 1/2 hour prevents bleeding color under tape remove trip tape pull back over itself cleanly cut paint edge use epoxies sure let everything set minimum 24 hours before removing paper tape Assemble flaps elevator Install pushrod engine tank accessories turn flyable Stunt model Trimming nothing frustrating having poorly flying model knowing trim stability predictability Lets start trim process before first flight Pick up model canopy see balances balance point Center Gravity CG very close front wing model nose heavy Add weight until model balances just over spar location wing critical Extend CU perpendicular fuselage out inboard wingtip Adjust leadouts 1/2 inch behind line First Flight What look during first flight Wings level Sound engine flying inverted Pull model control input hand Lets start wings level Have someone watch model level wings outboard wing constantly up down twist outboard flap direction compensate outboard wing low both directions remove e wingtip weight Keep working problem until wings level right-side up upside down sound engine needs steady both directions engine goes fat inverted will have raise tank 1/g inch 32 Model Aviation l [r J JOHN POND - Old Time Plan Service VISA ACCEPTED mum Order $1000 flight until sound same both ways sure try several different types propellers different blends fuel get best running performance clear area get expert fliers ask help pull model handle tells model tracking properly pull very light model does respond control input check see engine pointing may have add little engine offset gain line tension Check again location leadouts Make sure behind models center gravity opposite model seems pulling much hardlook engine offset leadout location important part successful Precision Aerobatics flying balanced input control hand pull handle must same inside outside loops Again up control down control must equal find inside maneuvers require goodly amount input outside stuff too quick adjust elevator kwik-link fix Keep using adjustment until turning model feels fairly equal fine-tune turning use adjustments control handle might want work expert area also just make sure dont things backward whole purpose learning trim model allow practice Precision Aerobatics model will exactly what want want practicenot fight worry thing will stay air belief properly trimmed Next Step will help through Intermediate Advanced possibly Expert y Pyatt 9629 Hazard Garden Grove CA 92644 Sources Balsa Superior Aircraft Balsa 1202 Centralia St Unit G Hawaiian Gardens CA 90716 310 865-3220 Fax 310 860-0327 E-Mail balsa@ixnetcomcom Control System Hardware Control Specialities Corp 205 E Center St Box 68 Stockertown PA 18083 Engines Props Other Goodles T & L Specialities Box 6052 Torrance CA 90504 List Other Fliers Near PAMPA 158 Flying Cloud Isle Foster City CA 94404 Combat Fighter Series A-la Warthog.. Kit #4010 Length37 Inches Wingspan48 Inches Wing Area510 Sq Weight4-1/4 4-3/4 Lbs four Combat Fighter Series aircraft use 40 46 engine 4 channel radio 3 standard servos kits feature foam core wings balsa tail surfaces extensive hardware pack rugged PVC fuselage Simple modular construction allows planes built 8-10 hours Due popular request now have 30 minute video available featuring Combat Fighter Series kits video avaijable itself $795 purchased kit $500 F-15 Eagle #4015 Length38 Inches Wingspan44 Inches Wing Area510 Sq Weight4 4-1/2 Lbs Also Available F-16 FalKit #4016 F-18 HornetKit #4018 order send check money order $3995 plus $500 S&H per kit LDM Industries Inc PO Box 292396 Tampa FL 33687-2396 Phone 813 991-4277 Fax 813 991-4810 Florida residents add 6% sales tax VISA and MASTER CARD Accepted 1996 LDM Industries Inc February 1997 33