Peris JN-1

NO OCR TEXT MOST OF US get turned full-size airplanes latest turn-on Pens JN- 1 interest stimulated RG Schmitts article November 1990 Model Builder small electric RC version JN-l JN-l based Schmitts drawing structurally very different weighs 2 lb 14 oz flies nicely OS 15 engine has wing loading 14 ounces per square foot OS fits neatly engine compartment An exhaust extension tube used keep oil off fuselage tailit works well model required two ounces lead nose balance 28% wing chord tail built light practical weight may necessary KITING As scratch builders know kitting prior assembly must /16 Micarta plywood template makes easy cut ribs Stack pin ribs together sand cut spar notches razor saw leading edge pre-shaped using razor plane Mark edges cut plane lines Cut wing sheeting size trim assure inner edges straight outer edges trimmed after assembly Please note spanwise grain direction cutting bottom wing tip pieces Cut out remaining partsie servo shelf batch cover tail wheel mount fuselage formers etc outside fuselage formers may cut bench saw Make notches razor saw #11 blade inside cutouts made drilling /2-inch holes corners using jigsaw finish cutting openings Cut drill main gear mounting pieces Machine tools make job easier band tools will work Cut wing strut mounts 1/ Lite Ply install 4-40 blind nuts advantages scratchbuilding ability select appro priate hardnesses sheet strip wood Wing spars fuselage longerons strips below side windows should hard balsa Almost everything else can medium balsa save weight tail can built using relatively soft balsa Bend main landing gear wire shape shown tail gear wire has have brass tubing bearing added before final bend made Cut main gear strut fairings tail gear support fittings tail gear steering fitting shim brass steel tin can stock landing gear parts should soldered using high-tin solder currently June1993 57 Waiting good test flying weather March Cape Cod transparent windows easy install give clear view interiorservos tank JN-1 simple airplane has very pretty lines JN-1 fueled up ready go Ace RIC pilot Capn Eddy just yelled Clear Grass takeoffs easy Wing loading 14 oz per square foot used plumbers such Stay-Brite Its easy use have large soldering iron sand surfaces clean use flux like Nokorode engine mount can made birch maple similar hard wood jigsaw sander very helpful cutting shaping parts Predrill 5/sd holes #4 wood screws will used attach mount firewall engine mount used Dave Brown main wheels streamlined tail wheel appearance appropriate JN-ls square lines discussion adhesives seems order models primarily assembled aliphatic resin glue such Sig Bond Titebond dries quickly enough purposes allows time reposition pieces necessary Critical joints must jigged hand-held position may spot glued thick CyA frozen place accelerator Aliphatic resin glue may added fillet Note aliphatic resin glues totally fuelproof windows attached Wilhold RIC-56 glueit transparent dry R/C-56 also used joint between vertical fin fuselage WING CONSTRUCTION wing built three parts center section two outer panels opinion best preserve plan build wing over piece paper has long horizontal line some marks locate ribs case line should rear bottom spar course plan paper should covered waxed paper before construction begins Begin wing construction outer panels building board long June1993 59 authors wife Eleanor shows JN-1s uncovered frameThe OS 15 engine perfect JN-1 Extension tube keeps Careful wood selection construction yielded model isexhaust oil off airplane Flying prop nylon 10 x 3 small light 2 lb 14 oz strongamount downthrust added after test flights Kitting important scratch-building some Pens JN-1 parts kit stage Note spanwise grain direction tip pieces far left 1A6 plywood Micarta template used cut wing ribs Blank ribs stacked pinned together sanded shape Spar notches cut using razor saw Front view fuselage after covering painting interior Note covering masked windows make painting easier interior color simulates zinc chromate used full-scale aircraft 0 0 CD 0 rOU TELLIN ME IOU EROUGHT FOUR BRANDS OF COLA 11-IREE FRUIT iUlCE5 1W9 BAGS OFRAISfl38 ThREECRANGES FOUR TUNA SANDWICIiESFOUR I-lN - BSCU IFS DOZEN DCUGHNUTS WHOLE PECAN FIEA iG NEWTONS AND NOLSA SHEET~Uvi PLY BALSA SNEIET C1 BRASS OR TNNED CAN STOCK 2M4EEL 3fxl SHEET 1OP&OflDM j1x 34s CAP STRIP S1RIP& SHEET PERIS JN-1 STRIP Gem L WEson k f SHEET SQXRtBALBA SASR RIBS 4-40 BLINDNtT 4-40 HDWt~ PLYj SHEET S-ut enough build same time right left Cut lower spar pin place Mark rib locations back spar marks should about 1/8 inch high project above cap strips Cut install bottom cap strips front rear bottom sheeting Add strut mount front bottom sheeting Glue ribs bottom sheeting marked locations Use square assure ribs right angles spar assembly dry lift tip tailing edge slide piece -inch stock under outer ends tip create washout Keep leading edge center section tight building board build rest structure accept washout Space three balsa support pieces under trailing edge pin place remainder wing construction done tailing edge supports place Add top spar pre-shaped leading edge Ribs W3A W3B should angled five degrees dihedral Install webbing top sheeting cap strips Make pattern wing tip shape trim top sheeting match Using 80-grit sanding block sand bottom tips proper angle install bottom tip pieces Great sanding blocks can made white-gluing sandpaper -inch board scraps Use plane 80-grit sanding block shape leading trailing edges tailing edge should flat /s-inch sur face Trim center ribs accept dihedral brace Sand panels 100- 120-grit sanding block framework outer panels now complete center section construction similar outer panels First glue main dihedral braces doublers together Mark center both sides sembly Pin /16 sheet vertical piece board Note piece front /s Lite Ply piece dihedral brace full depth maximum strength Install front 6 hard balsa bottom sheeting ribs Wi 1/ front piece dihedral brace assembly Install rear bottom sheeting 1As hard balsa except rear 1/g plywood Add ribs W2 wing hold-down blocks Install top sheeting Note hole wing retainer dowel drilled laterwith wing fitted fuselage Trim wing hold-down blocks wing top Sand center section match outer panels preparation covering Carefully fit panels center section trim necessary Pin center section building board Slide outer panels place support flat pieces 2 x 2 x 10-inch pine similar wood placed same distance center side Block up trailing edges outer panels necessary accommodate washout Use dihedral brace establish dihedral angle make sure angle same side Remove outer panels apply glue surfaces joined Reassemble panels recheck angles alignment go away let everything dry Addi tional glue may added later strengthen joints original wing covered white translucent Micafilm TAIL CONSTRUCTION horizontal nnd verticnl tall surfaces constructed /16 balsa Again preference build over lines drawn blank sheet paper rear spars fixed section should relatively hard balsa remaining parts can medium-soft diagonal bracingused other designsprovides warp resistance Block-sand surfaces assure flatness rudder elevator should tapered toward trailing edges trailing edges fixed movable surfaces flat front rudder elevator V-shaped allow move freely other edges should half round Sig Easy Hinges fitted before covering like hand-rout rectangular opening control horns imbed five-minute epoxyIve never fail model has white translucent Micafilm covering horizontal tail vertical tail covered silkspan FUSELAGE CONSTRUCTION fuseinge sides require special attention during construction Note spruce pieces under wing hard balsa strips under side windows help strengthen fuselage sideto-side remaining fuselage frame material 3/is strip sheet top bottom longerons behind cabin area should hard balsa Build right side over plan build left side over plan omit pieces diagonal support pieces Remove left side plan Place waxed paper over outside flat side fuselages right side pin sides together aligning carefully Now add pieces left side add missing diagonal braces Pin right side board glue formers F2 F4 F5 sure formers proper locations right angles building board Fit formers trimming notches necessary motor mount assembled during kitting assemble now mount Fl Dont forget /&s predrill #4 screws Pin side assembly top-down building boardlet F4 project over edge board Attach left side making sure properly positioned respect right side Align nose square pull tail together trial fit good time add -inch doublers main gear mounts Glue tail end togetherbe sure centered mark centeriine blank piece paper Draw centerline across tops bottoms F4 F5 Pin bottom fuselage board block up front back keep things steady square should used transfer centerline up tail post sides properiy aligned CyA glue can used freeze place Add cross braces F3s cross grained bottom sheeting wing hold-down pieces tail mount Cut fit cowl pieces engine compartment hatch Make set hatch hold-downs Drill #36 holes hold-downs hatch place Tap hold-downs 6-32 saturate threads thin CyA glue Enlarge hatch holes #27 drill holes front wing 3/is dowel wing hold-down screws drilled wing place fuselage assure good alignment Make sure wing right angle fuselage Tap wing hold-downs 10-32 saturate threads thin CyA glue prefer 10-32 blind nuts may also used hold-down bolts wing hold-down dowel may now made installed Block-sand sides top bottom fuselage model ready covered June 1993 61 p wing center section during con struction Dihedral brace assembly forward crosspieces full wing depth engine mount firewall assembly hardwood 3/ie plywood mount sotewed glued firewall Full Size Plans Available-See Page 184 __I____ 0 -N models fuselage covered nylon Sig s Koverall would have worked well readily available fuselage vertical tail finished several coats thinned nitrate dope coat green butyrate dope three coats thinned clear butyrate dope brushed color coat needed little touch-up know spots Remember butyrate dope should cure two three weeks before exposed raw fuel dope thoroughly cured may blush white Thinned epoxy used coat engine c9mpartment other interior areas may exposed fuel exhaust good time install radio plumbing avoid having add nose weight proper balance keep everything far forward practical inside original model given coat zinc-chromate-colored butyrate dope mix white yellow green come up something close zinc chromate realism-adding trick borrowed Lou Andrews has used years fuselage completely covered doped except area under wing After last coat clear dope window areas openings tail asemblies carefully cut out beats having carefully dope around open areas Wingspan 56/2 inches Engine OS 15 Number channels Three Weight 2 lb 14 oz Construction Built-up Covering/finish Mioafilm wing horizontal tail silkspan vertical tail nylon fuselage Butyrate nitrate dope finish windows installed after radio control linkages have checked Use RIC-56 attach windows RIC-56 takes cure under plastic eventually will become transparent ASSEMBLING THE TAIL tail assembled after covering finishing its parts surfaces join omit remove covering finish Install control horns 3A6 trian gular pieces bottom vertical fin elevator rudder hinges Check see parts fit vertical fin right angles horizontal fin whole assembly will good alignment fuselage Trimsand necessary Use square align fins make sure vertical fin centered horizontal fin glue fins together fin assembly glued fuselage Run bead R/C-56 around joint between vertical fin fuselage area above horizontal fin below top longerons left uncovered am sure case full-scale JN-1 FLYING Adjust rudder much throw possible between elevator sections radio has dual rates about half amount throw can used relaxed trainer-type flying elevator should set about 3/ inch up down section could summarized saying JN-1 flew great just shown plans trim necessary small amount downthrustthe plans show change OS 15 just right power flying propeller nylon 10 x 3 Grass takeoffs easy forward gear location test pilot Hans Sagemuehl wanted take over just after takeoff however feel comfortable taking notes asking questions during test flights criticism Hans concerned transition 62 Model Aviation een power-on glide conditions previously mentioned downthrust solved problem So build enjoy Pens JN-l very cute date have able contact Messrs Pens Schmitt Does fullscale JN-l fly ailerons Judging model could very well would like thank late George OBrien test pilot Hans Sagemuehi valuable help 4r FEATHER CUT creates new standard ease accuracy cutting white blue foam wing cores ds off Precise single wire tracking concert micro-adjustable balance weights guided exclusive three-point tracking system guarantees ripple-free surfaces No trailing edge burn-out common two wire systems Couple FEATHER CUT Tekoas THERMAL GENERATOR fool proof temperature control youll Pro st time out Cuts straight taper wings fins stabilizers matically s Mounts tape edge workbench dining table stores its own heavy duty mailing tube lete kit anodized plated components no hardware store trips ructions include cutting first wing making templates old Bow 40 52 Available Power supply required Guaranteed out perform rest Simply best TEKOA THE CENTER OF DESIGN 3219 CANYON LAKE DRIVE HOLLYWOOD 90068 FEATHER CUT $14950 S & H THERMAL GENERATOR Power Supply $11950 S&H T FA R N ED E N FREE BROCHURE distrhztcd Capstone H/C Suppliers Call 1-800-593-5250 562W Scitnock Road Weetervllie Ohio 4308t 0AFTED 3950-AVaUaBlvd WALNUT CA 91789 909 5941471 C U ci w i4 T PE RR 0 0 F ci CALL OR WRITE FOR TIlE SNAPPER H/C COMBAT-STYLE SPORE MODEL FOR Giow OR ELECTRIC POWER Kit inchxles ilitiabsted instn]clions haniware peak foinned csnor machine- diecut pelts made high-quality belsa plywood * May flown 05 electric power 049 11 glowengine power Parts instructiom both vessimi ste inchoded * Offers solid big-plane perfoimance Its smell plane duB flies like 40 flfl 5 Accepts standardaize seryw Wogepan 34 inches Nsa 288 square inches weight 7 ounces bare airframe 22 26 ounces ready fly blow powered 33 36 ounces ready fly electric powered I- flt -c C Lot 7 June1993 63 April issue Mode/Aviation erroneously reported page 35 Scale Masters 1992 Clark Hopkinss Extra 300 used B&B smoke fuel fact fuel provided Frank Reyes C&F through Hobby Nut hobby shop Reyes C&F also sponsors through Hobby Nut Clark Hopkins regret error QUALITY I1ITGRITY SERVICE QUALrr INTEGRITY SERVIcE QUALTTY INtEGRITY SERVICE C S ADVANCED AERO PRODUCTS ~YS&OSSURPASS 120 EXHAUST SYSTEMS FOR RATPERN AIRCRAFT AND UtI1UATE RIPE SIUCONE COUPLERS AND TAIL PIPES ALSO AVAILABLE CALl 05 WSITE F05 eFOi54AT5 4 OEAI05 riajawo esilts AT 1 Box 365-C ANNA TX 7540 14 924-3940 aLATHES IMILLS NRTALS BOOKS 00PRECISION INSTRUteNTS -~CCMLETE CIITALOC $200 iOOOs items 2100 Sl Rood CAMPBELL TOOLS CO 5pino1fio1d 04 45505 513 3226562 Rubber 6 Engine Power Free Flight Display Control une Electric Power RIC Airplanes new illustrated 32 page tabloid size catalog US 6 Canada $100 Foreigh 8300 Penn valley Hobby center 837-A W Main St Lanadale PA 19448 215- 368-0770 WORLDS LARGEST SCALt PLANS & DOCUMENTATFJN StRVkt 100000 AIRCRAFT PHOTOS PLANS ENLARGING 130 SCALE PLANS ze 120 PAGE CATALOG $5 00 USA & CANADA $1000 AIR OVERSEAS Jim Pepsins SCALE PLANS AND PHOTO StRVCE 3209 MADISdN AVE GREENSBORO NC 27403 l22-5239 manudutta-ed AEROCRAFT

NO OCR TEXT MOST OF US get turned full-size airplanes latest turn-on Pens JN- 1 interest stimulated RG Schmitts article November 1990 Model Builder small electric RC version JN-l JN-l based Schmitts drawing structurally very different weighs 2 lb 14 oz flies nicely OS 15 engine has wing loading 14 ounces per square foot OS fits neatly engine compartment An exhaust extension tube used keep oil off fuselage tailit works well model required two ounces lead nose balance 28% wing chord tail built light practical weight may necessary KITING As scratch builders know kitting prior assembly must /16 Micarta plywood template makes easy cut ribs Stack pin ribs together sand cut spar notches razor saw leading edge pre-shaped using razor plane Mark edges cut plane lines Cut wing sheeting size trim assure inner edges straight outer edges trimmed after assembly Please note spanwise grain direction cutting bottom wing tip pieces Cut out remaining partsie servo shelf batch cover tail wheel mount fuselage formers etc outside fuselage formers may cut bench saw Make notches razor saw #11 blade inside cutouts made drilling /2-inch holes corners using jigsaw finish cutting openings Cut drill main gear mounting pieces Machine tools make job easier band tools will work Cut wing strut mounts 1/ Lite Ply install 4-40 blind nuts advantages scratchbuilding ability select appro priate hardnesses sheet strip wood Wing spars fuselage longerons strips below side windows should hard balsa Almost everything else can medium balsa save weight tail can built using relatively soft balsa Bend main landing gear wire shape shown tail gear wire has have brass tubing bearing added before final bend made Cut main gear strut fairings tail gear support fittings tail gear steering fitting shim brass steel tin can stock landing gear parts should soldered using high-tin solder currently June1993 57 Waiting good test flying weather March Cape Cod transparent windows easy install give clear view interiorservos tank JN-1 simple airplane has very pretty lines JN-1 fueled up ready go Ace RIC pilot Capn Eddy just yelled Clear Grass takeoffs easy Wing loading 14 oz per square foot used plumbers such Stay-Brite Its easy use have large soldering iron sand surfaces clean use flux like Nokorode engine mount can made birch maple similar hard wood jigsaw sander very helpful cutting shaping parts Predrill 5/sd holes #4 wood screws will used attach mount firewall engine mount used Dave Brown main wheels streamlined tail wheel appearance appropriate JN-ls square lines discussion adhesives seems order models primarily assembled aliphatic resin glue such Sig Bond Titebond dries quickly enough purposes allows time reposition pieces necessary Critical joints must jigged hand-held position may spot glued thick CyA frozen place accelerator Aliphatic resin glue may added fillet Note aliphatic resin glues totally fuelproof windows attached Wilhold RIC-56 glueit transparent dry R/C-56 also used joint between vertical fin fuselage WING CONSTRUCTION wing built three parts center section two outer panels opinion best preserve plan build wing over piece paper has long horizontal line some marks locate ribs case line should rear bottom spar course plan paper should covered waxed paper before construction begins Begin wing construction outer panels building board long June1993 59 authors wife Eleanor shows JN-1s uncovered frameThe OS 15 engine perfect JN-1 Extension tube keeps Careful wood selection construction yielded model isexhaust oil off airplane Flying prop nylon 10 x 3 small light 2 lb 14 oz strongamount downthrust added after test flights Kitting important scratch-building some Pens JN-1 parts kit stage Note spanwise grain direction tip pieces far left 1A6 plywood Micarta template used cut wing ribs Blank ribs stacked pinned together sanded shape Spar notches cut using razor saw Front view fuselage after covering painting interior Note covering masked windows make painting easier interior color simulates zinc chromate used full-scale aircraft 0 0 CD 0 rOU TELLIN ME IOU EROUGHT FOUR BRANDS OF COLA 11-IREE FRUIT iUlCE5 1W9 BAGS OFRAISfl38 ThREECRANGES FOUR TUNA SANDWICIiESFOUR I-lN - BSCU IFS DOZEN DCUGHNUTS WHOLE PECAN FIEA iG NEWTONS AND NOLSA SHEET~Uvi PLY BALSA SNEIET C1 BRASS OR TNNED CAN STOCK 2M4EEL 3fxl SHEET 1OP&OflDM j1x 34s CAP STRIP S1RIP& SHEET PERIS JN-1 STRIP Gem L WEson k f SHEET SQXRtBALBA SASR RIBS 4-40 BLINDNtT 4-40 HDWt~ PLYj SHEET S-ut enough build same time right left Cut lower spar pin place Mark rib locations back spar marks should about 1/8 inch high project above cap strips Cut install bottom cap strips front rear bottom sheeting Add strut mount front bottom sheeting Glue ribs bottom sheeting marked locations Use square assure ribs right angles spar assembly dry lift tip tailing edge slide piece -inch stock under outer ends tip create washout Keep leading edge center section tight building board build rest structure accept washout Space three balsa support pieces under trailing edge pin place remainder wing construction done tailing edge supports place Add top spar pre-shaped leading edge Ribs W3A W3B should angled five degrees dihedral Install webbing top sheeting cap strips Make pattern wing tip shape trim top sheeting match Using 80-grit sanding block sand bottom tips proper angle install bottom tip pieces Great sanding blocks can made white-gluing sandpaper -inch board scraps Use plane 80-grit sanding block shape leading trailing edges tailing edge should flat /s-inch sur face Trim center ribs accept dihedral brace Sand panels 100- 120-grit sanding block framework outer panels now complete center section construction similar outer panels First glue main dihedral braces doublers together Mark center both sides sembly Pin /16 sheet vertical piece board Note piece front /s Lite Ply piece dihedral brace full depth maximum strength Install front 6 hard balsa bottom sheeting ribs Wi 1/ front piece dihedral brace assembly Install rear bottom sheeting 1As hard balsa except rear 1/g plywood Add ribs W2 wing hold-down blocks Install top sheeting Note hole wing retainer dowel drilled laterwith wing fitted fuselage Trim wing hold-down blocks wing top Sand center section match outer panels preparation covering Carefully fit panels center section trim necessary Pin center section building board Slide outer panels place support flat pieces 2 x 2 x 10-inch pine similar wood placed same distance center side Block up trailing edges outer panels necessary accommodate washout Use dihedral brace establish dihedral angle make sure angle same side Remove outer panels apply glue surfaces joined Reassemble panels recheck angles alignment go away let everything dry Addi tional glue may added later strengthen joints original wing covered white translucent Micafilm TAIL CONSTRUCTION horizontal nnd verticnl tall surfaces constructed /16 balsa Again preference build over lines drawn blank sheet paper rear spars fixed section should relatively hard balsa remaining parts can medium-soft diagonal bracingused other designsprovides warp resistance Block-sand surfaces assure flatness rudder elevator should tapered toward trailing edges trailing edges fixed movable surfaces flat front rudder elevator V-shaped allow move freely other edges should half round Sig Easy Hinges fitted before covering like hand-rout rectangular opening control horns imbed five-minute epoxyIve never fail model has white translucent Micafilm covering horizontal tail vertical tail covered silkspan FUSELAGE CONSTRUCTION fuseinge sides require special attention during construction Note spruce pieces under wing hard balsa strips under side windows help strengthen fuselage sideto-side remaining fuselage frame material 3/is strip sheet top bottom longerons behind cabin area should hard balsa Build right side over plan build left side over plan omit pieces diagonal support pieces Remove left side plan Place waxed paper over outside flat side fuselages right side pin sides together aligning carefully Now add pieces left side add missing diagonal braces Pin right side board glue formers F2 F4 F5 sure formers proper locations right angles building board Fit formers trimming notches necessary motor mount assembled during kitting assemble now mount Fl Dont forget /&s predrill #4 screws Pin side assembly top-down building boardlet F4 project over edge board Attach left side making sure properly positioned respect right side Align nose square pull tail together trial fit good time add -inch doublers main gear mounts Glue tail end togetherbe sure centered mark centeriine blank piece paper Draw centerline across tops bottoms F4 F5 Pin bottom fuselage board block up front back keep things steady square should used transfer centerline up tail post sides properiy aligned CyA glue can used freeze place Add cross braces F3s cross grained bottom sheeting wing hold-down pieces tail mount Cut fit cowl pieces engine compartment hatch Make set hatch hold-downs Drill #36 holes hold-downs hatch place Tap hold-downs 6-32 saturate threads thin CyA glue Enlarge hatch holes #27 drill holes front wing 3/is dowel wing hold-down screws drilled wing place fuselage assure good alignment Make sure wing right angle fuselage Tap wing hold-downs 10-32 saturate threads thin CyA glue prefer 10-32 blind nuts may also used hold-down bolts wing hold-down dowel may now made installed Block-sand sides top bottom fuselage model ready covered June 1993 61 p wing center section during con struction Dihedral brace assembly forward crosspieces full wing depth engine mount firewall assembly hardwood 3/ie plywood mount sotewed glued firewall Full Size Plans Available-See Page 184 __I____ 0 -N models fuselage covered nylon Sig s Koverall would have worked well readily available fuselage vertical tail finished several coats thinned nitrate dope coat green butyrate dope three coats thinned clear butyrate dope brushed color coat needed little touch-up know spots Remember butyrate dope should cure two three weeks before exposed raw fuel dope thoroughly cured may blush white Thinned epoxy used coat engine c9mpartment other interior areas may exposed fuel exhaust good time install radio plumbing avoid having add nose weight proper balance keep everything far forward practical inside original model given coat zinc-chromate-colored butyrate dope mix white yellow green come up something close zinc chromate realism-adding trick borrowed Lou Andrews has used years fuselage completely covered doped except area under wing After last coat clear dope window areas openings tail asemblies carefully cut out beats having carefully dope around open areas Wingspan 56/2 inches Engine OS 15 Number channels Three Weight 2 lb 14 oz Construction Built-up Covering/finish Mioafilm wing horizontal tail silkspan vertical tail nylon fuselage Butyrate nitrate dope finish windows installed after radio control linkages have checked Use RIC-56 attach windows RIC-56 takes cure under plastic eventually will become transparent ASSEMBLING THE TAIL tail assembled after covering finishing its parts surfaces join omit remove covering finish Install control horns 3A6 trian gular pieces bottom vertical fin elevator rudder hinges Check see parts fit vertical fin right angles horizontal fin whole assembly will good alignment fuselage Trimsand necessary Use square align fins make sure vertical fin centered horizontal fin glue fins together fin assembly glued fuselage Run bead R/C-56 around joint between vertical fin fuselage area above horizontal fin below top longerons left uncovered am sure case full-scale JN-1 FLYING Adjust rudder much throw possible between elevator sections radio has dual rates about half amount throw can used relaxed trainer-type flying elevator should set about 3/ inch up down section could summarized saying JN-1 flew great just shown plans trim necessary small amount downthrustthe plans show change OS 15 just right power flying propeller nylon 10 x 3 Grass takeoffs easy forward gear location test pilot Hans Sagemuehl wanted take over just after takeoff however feel comfortable taking notes asking questions during test flights criticism Hans concerned transition 62 Model Aviation een power-on glide conditions previously mentioned downthrust solved problem So build enjoy Pens JN-l very cute date have able contact Messrs Pens Schmitt Does fullscale JN-l fly ailerons Judging model could very well would like thank late George OBrien test pilot Hans Sagemuehi valuable help 4r FEATHER CUT creates new standard ease accuracy cutting white blue foam wing cores ds off Precise single wire tracking concert micro-adjustable balance weights guided exclusive three-point tracking system guarantees ripple-free surfaces No trailing edge burn-out common two wire systems Couple FEATHER CUT Tekoas THERMAL GENERATOR fool proof temperature control youll Pro st time out Cuts straight taper wings fins stabilizers matically s Mounts tape edge workbench dining table stores its own heavy duty mailing tube lete kit anodized plated components no hardware store trips ructions include cutting first wing making templates old Bow 40 52 Available Power supply required Guaranteed out perform rest Simply best TEKOA THE CENTER OF DESIGN 3219 CANYON LAKE DRIVE HOLLYWOOD 90068 FEATHER CUT $14950 S & H THERMAL GENERATOR Power Supply $11950 S&H T FA R N ED E N FREE BROCHURE distrhztcd Capstone H/C Suppliers Call 1-800-593-5250 562W Scitnock Road Weetervllie Ohio 4308t 0AFTED 3950-AVaUaBlvd WALNUT CA 91789 909 5941471 C U ci w i4 T PE RR 0 0 F ci CALL OR WRITE FOR TIlE SNAPPER H/C COMBAT-STYLE SPORE MODEL FOR Giow OR ELECTRIC POWER Kit inchxles ilitiabsted instn]clions haniware peak foinned csnor machine- diecut pelts made high-quality belsa plywood * May flown 05 electric power 049 11 glowengine power Parts instructiom both vessimi ste inchoded * Offers solid big-plane perfoimance Its smell plane duB flies like 40 flfl 5 Accepts standardaize seryw Wogepan 34 inches Nsa 288 square inches weight 7 ounces bare airframe 22 26 ounces ready fly blow powered 33 36 ounces ready fly electric powered I- flt -c C Lot 7 June1993 63 April issue Mode/Aviation erroneously reported page 35 Scale Masters 1992 Clark Hopkinss Extra 300 used B&B smoke fuel fact fuel provided Frank Reyes C&F through Hobby Nut hobby shop Reyes C&F also sponsors through Hobby Nut Clark Hopkins regret error QUALITY I1ITGRITY SERVICE QUALrr INTEGRITY SERVIcE QUALTTY INtEGRITY SERVICE C S ADVANCED AERO PRODUCTS ~YS&OSSURPASS 120 EXHAUST SYSTEMS FOR RATPERN AIRCRAFT AND UtI1UATE RIPE SIUCONE COUPLERS AND TAIL PIPES ALSO AVAILABLE CALl 05 WSITE F05 eFOi54AT5 4 OEAI05 riajawo esilts AT 1 Box 365-C ANNA TX 7540 14 924-3940 aLATHES IMILLS NRTALS BOOKS 00PRECISION INSTRUteNTS -~CCMLETE CIITALOC $200 iOOOs items 2100 Sl Rood CAMPBELL TOOLS CO 5pino1fio1d 04 45505 513 3226562 Rubber 6 Engine Power Free Flight Display Control une Electric Power RIC Airplanes new illustrated 32 page tabloid size catalog US 6 Canada $100 Foreigh 8300 Penn valley Hobby center 837-A W Main St Lanadale PA 19448 215- 368-0770 WORLDS LARGEST SCALt PLANS & DOCUMENTATFJN StRVkt 100000 AIRCRAFT PHOTOS PLANS ENLARGING 130 SCALE PLANS ze 120 PAGE CATALOG $5 00 USA & CANADA $1000 AIR OVERSEAS Jim Pepsins SCALE PLANS AND PHOTO StRVCE 3209 MADISdN AVE GREENSBORO NC 27403 l22-5239 manudutta-ed AEROCRAFT

NO OCR TEXT MOST OF US get turned full-size airplanes latest turn-on Pens JN- 1 interest stimulated RG Schmitts article November 1990 Model Builder small electric RC version JN-l JN-l based Schmitts drawing structurally very different weighs 2 lb 14 oz flies nicely OS 15 engine has wing loading 14 ounces per square foot OS fits neatly engine compartment An exhaust extension tube used keep oil off fuselage tailit works well model required two ounces lead nose balance 28% wing chord tail built light practical weight may necessary KITING As scratch builders know kitting prior assembly must /16 Micarta plywood template makes easy cut ribs Stack pin ribs together sand cut spar notches razor saw leading edge pre-shaped using razor plane Mark edges cut plane lines Cut wing sheeting size trim assure inner edges straight outer edges trimmed after assembly Please note spanwise grain direction cutting bottom wing tip pieces Cut out remaining partsie servo shelf batch cover tail wheel mount fuselage formers etc outside fuselage formers may cut bench saw Make notches razor saw #11 blade inside cutouts made drilling /2-inch holes corners using jigsaw finish cutting openings Cut drill main gear mounting pieces Machine tools make job easier band tools will work Cut wing strut mounts 1/ Lite Ply install 4-40 blind nuts advantages scratchbuilding ability select appro priate hardnesses sheet strip wood Wing spars fuselage longerons strips below side windows should hard balsa Almost everything else can medium balsa save weight tail can built using relatively soft balsa Bend main landing gear wire shape shown tail gear wire has have brass tubing bearing added before final bend made Cut main gear strut fairings tail gear support fittings tail gear steering fitting shim brass steel tin can stock landing gear parts should soldered using high-tin solder currently June1993 57 Waiting good test flying weather March Cape Cod transparent windows easy install give clear view interiorservos tank JN-1 simple airplane has very pretty lines JN-1 fueled up ready go Ace RIC pilot Capn Eddy just yelled Clear Grass takeoffs easy Wing loading 14 oz per square foot used plumbers such Stay-Brite Its easy use have large soldering iron sand surfaces clean use flux like Nokorode engine mount can made birch maple similar hard wood jigsaw sander very helpful cutting shaping parts Predrill 5/sd holes #4 wood screws will used attach mount firewall engine mount used Dave Brown main wheels streamlined tail wheel appearance appropriate JN-ls square lines discussion adhesives seems order models primarily assembled aliphatic resin glue such Sig Bond Titebond dries quickly enough purposes allows time reposition pieces necessary Critical joints must jigged hand-held position may spot glued thick CyA frozen place accelerator Aliphatic resin glue may added fillet Note aliphatic resin glues totally fuelproof windows attached Wilhold RIC-56 glueit transparent dry R/C-56 also used joint between vertical fin fuselage WING CONSTRUCTION wing built three parts center section two outer panels opinion best preserve plan build wing over piece paper has long horizontal line some marks locate ribs case line should rear bottom spar course plan paper should covered waxed paper before construction begins Begin wing construction outer panels building board long June1993 59 authors wife Eleanor shows JN-1s uncovered frameThe OS 15 engine perfect JN-1 Extension tube keeps Careful wood selection construction yielded model isexhaust oil off airplane Flying prop nylon 10 x 3 small light 2 lb 14 oz strongamount downthrust added after test flights Kitting important scratch-building some Pens JN-1 parts kit stage Note spanwise grain direction tip pieces far left 1A6 plywood Micarta template used cut wing ribs Blank ribs stacked pinned together sanded shape Spar notches cut using razor saw Front view fuselage after covering painting interior Note covering masked windows make painting easier interior color simulates zinc chromate used full-scale aircraft 0 0 CD 0 rOU TELLIN ME IOU EROUGHT FOUR BRANDS OF COLA 11-IREE FRUIT iUlCE5 1W9 BAGS OFRAISfl38 ThREECRANGES FOUR TUNA SANDWICIiESFOUR I-lN - BSCU IFS DOZEN DCUGHNUTS WHOLE PECAN FIEA iG NEWTONS AND NOLSA SHEET~Uvi PLY BALSA SNEIET C1 BRASS OR TNNED CAN STOCK 2M4EEL 3fxl SHEET 1OP&OflDM j1x 34s CAP STRIP S1RIP& SHEET PERIS JN-1 STRIP Gem L WEson k f SHEET SQXRtBALBA SASR RIBS 4-40 BLINDNtT 4-40 HDWt~ PLYj SHEET S-ut enough build same time right left Cut lower spar pin place Mark rib locations back spar marks should about 1/8 inch high project above cap strips Cut install bottom cap strips front rear bottom sheeting Add strut mount front bottom sheeting Glue ribs bottom sheeting marked locations Use square assure ribs right angles spar assembly dry lift tip tailing edge slide piece -inch stock under outer ends tip create washout Keep leading edge center section tight building board build rest structure accept washout Space three balsa support pieces under trailing edge pin place remainder wing construction done tailing edge supports place Add top spar pre-shaped leading edge Ribs W3A W3B should angled five degrees dihedral Install webbing top sheeting cap strips Make pattern wing tip shape trim top sheeting match Using 80-grit sanding block sand bottom tips proper angle install bottom tip pieces Great sanding blocks can made white-gluing sandpaper -inch board scraps Use plane 80-grit sanding block shape leading trailing edges tailing edge should flat /s-inch sur face Trim center ribs accept dihedral brace Sand panels 100- 120-grit sanding block framework outer panels now complete center section construction similar outer panels First glue main dihedral braces doublers together Mark center both sides sembly Pin /16 sheet vertical piece board Note piece front /s Lite Ply piece dihedral brace full depth maximum strength Install front 6 hard balsa bottom sheeting ribs Wi 1/ front piece dihedral brace assembly Install rear bottom sheeting 1As hard balsa except rear 1/g plywood Add ribs W2 wing hold-down blocks Install top sheeting Note hole wing retainer dowel drilled laterwith wing fitted fuselage Trim wing hold-down blocks wing top Sand center section match outer panels preparation covering Carefully fit panels center section trim necessary Pin center section building board Slide outer panels place support flat pieces 2 x 2 x 10-inch pine similar wood placed same distance center side Block up trailing edges outer panels necessary accommodate washout Use dihedral brace establish dihedral angle make sure angle same side Remove outer panels apply glue surfaces joined Reassemble panels recheck angles alignment go away let everything dry Addi tional glue may added later strengthen joints original wing covered white translucent Micafilm TAIL CONSTRUCTION horizontal nnd verticnl tall surfaces constructed /16 balsa Again preference build over lines drawn blank sheet paper rear spars fixed section should relatively hard balsa remaining parts can medium-soft diagonal bracingused other designsprovides warp resistance Block-sand surfaces assure flatness rudder elevator should tapered toward trailing edges trailing edges fixed movable surfaces flat front rudder elevator V-shaped allow move freely other edges should half round Sig Easy Hinges fitted before covering like hand-rout rectangular opening control horns imbed five-minute epoxyIve never fail model has white translucent Micafilm covering horizontal tail vertical tail covered silkspan FUSELAGE CONSTRUCTION fuseinge sides require special attention during construction Note spruce pieces under wing hard balsa strips under side windows help strengthen fuselage sideto-side remaining fuselage frame material 3/is strip sheet top bottom longerons behind cabin area should hard balsa Build right side over plan build left side over plan omit pieces diagonal support pieces Remove left side plan Place waxed paper over outside flat side fuselages right side pin sides together aligning carefully Now add pieces left side add missing diagonal braces Pin right side board glue formers F2 F4 F5 sure formers proper locations right angles building board Fit formers trimming notches necessary motor mount assembled during kitting assemble now mount Fl Dont forget /&s predrill #4 screws Pin side assembly top-down building boardlet F4 project over edge board Attach left side making sure properly positioned respect right side Align nose square pull tail together trial fit good time add -inch doublers main gear mounts Glue tail end togetherbe sure centered mark centeriine blank piece paper Draw centerline across tops bottoms F4 F5 Pin bottom fuselage board block up front back keep things steady square should used transfer centerline up tail post sides properiy aligned CyA glue can used freeze place Add cross braces F3s cross grained bottom sheeting wing hold-down pieces tail mount Cut fit cowl pieces engine compartment hatch Make set hatch hold-downs Drill #36 holes hold-downs hatch place Tap hold-downs 6-32 saturate threads thin CyA glue Enlarge hatch holes #27 drill holes front wing 3/is dowel wing hold-down screws drilled wing place fuselage assure good alignment Make sure wing right angle fuselage Tap wing hold-downs 10-32 saturate threads thin CyA glue prefer 10-32 blind nuts may also used hold-down bolts wing hold-down dowel may now made installed Block-sand sides top bottom fuselage model ready covered June 1993 61 p wing center section during con struction Dihedral brace assembly forward crosspieces full wing depth engine mount firewall assembly hardwood 3/ie plywood mount sotewed glued firewall Full Size Plans Available-See Page 184 __I____ 0 -N models fuselage covered nylon Sig s Koverall would have worked well readily available fuselage vertical tail finished several coats thinned nitrate dope coat green butyrate dope three coats thinned clear butyrate dope brushed color coat needed little touch-up know spots Remember butyrate dope should cure two three weeks before exposed raw fuel dope thoroughly cured may blush white Thinned epoxy used coat engine c9mpartment other interior areas may exposed fuel exhaust good time install radio plumbing avoid having add nose weight proper balance keep everything far forward practical inside original model given coat zinc-chromate-colored butyrate dope mix white yellow green come up something close zinc chromate realism-adding trick borrowed Lou Andrews has used years fuselage completely covered doped except area under wing After last coat clear dope window areas openings tail asemblies carefully cut out beats having carefully dope around open areas Wingspan 56/2 inches Engine OS 15 Number channels Three Weight 2 lb 14 oz Construction Built-up Covering/finish Mioafilm wing horizontal tail silkspan vertical tail nylon fuselage Butyrate nitrate dope finish windows installed after radio control linkages have checked Use RIC-56 attach windows RIC-56 takes cure under plastic eventually will become transparent ASSEMBLING THE TAIL tail assembled after covering finishing its parts surfaces join omit remove covering finish Install control horns 3A6 trian gular pieces bottom vertical fin elevator rudder hinges Check see parts fit vertical fin right angles horizontal fin whole assembly will good alignment fuselage Trimsand necessary Use square align fins make sure vertical fin centered horizontal fin glue fins together fin assembly glued fuselage Run bead R/C-56 around joint between vertical fin fuselage area above horizontal fin below top longerons left uncovered am sure case full-scale JN-1 FLYING Adjust rudder much throw possible between elevator sections radio has dual rates about half amount throw can used relaxed trainer-type flying elevator should set about 3/ inch up down section could summarized saying JN-1 flew great just shown plans trim necessary small amount downthrustthe plans show change OS 15 just right power flying propeller nylon 10 x 3 Grass takeoffs easy forward gear location test pilot Hans Sagemuehl wanted take over just after takeoff however feel comfortable taking notes asking questions during test flights criticism Hans concerned transition 62 Model Aviation een power-on glide conditions previously mentioned downthrust solved problem So build enjoy Pens JN-l very cute date have able contact Messrs Pens Schmitt Does fullscale JN-l fly ailerons Judging model could very well would like thank late George OBrien test pilot Hans Sagemuehi valuable help 4r FEATHER CUT creates new standard ease accuracy cutting white blue foam wing cores ds off Precise single wire tracking concert micro-adjustable balance weights guided exclusive three-point tracking system guarantees ripple-free surfaces No trailing edge burn-out common two wire systems Couple FEATHER CUT Tekoas THERMAL GENERATOR fool proof temperature control youll Pro st time out Cuts straight taper wings fins stabilizers matically s Mounts tape edge workbench dining table stores its own heavy duty mailing tube lete kit anodized plated components no hardware store trips ructions include cutting first wing making templates old Bow 40 52 Available Power supply required Guaranteed out perform rest Simply best TEKOA THE CENTER OF DESIGN 3219 CANYON LAKE DRIVE HOLLYWOOD 90068 FEATHER CUT $14950 S & H THERMAL GENERATOR Power Supply $11950 S&H T FA R N ED E N FREE BROCHURE distrhztcd Capstone H/C Suppliers Call 1-800-593-5250 562W Scitnock Road Weetervllie Ohio 4308t 0AFTED 3950-AVaUaBlvd WALNUT CA 91789 909 5941471 C U ci w i4 T PE RR 0 0 F ci CALL OR WRITE FOR TIlE SNAPPER H/C COMBAT-STYLE SPORE MODEL FOR Giow OR ELECTRIC POWER Kit inchxles ilitiabsted instn]clions haniware peak foinned csnor machine- diecut pelts made high-quality belsa plywood * May flown 05 electric power 049 11 glowengine power Parts instructiom both vessimi ste inchoded * Offers solid big-plane perfoimance Its smell plane duB flies like 40 flfl 5 Accepts standardaize seryw Wogepan 34 inches Nsa 288 square inches weight 7 ounces bare airframe 22 26 ounces ready fly blow powered 33 36 ounces ready fly electric powered I- flt -c C Lot 7 June1993 63 April issue Mode/Aviation erroneously reported page 35 Scale Masters 1992 Clark Hopkinss Extra 300 used B&B smoke fuel fact fuel provided Frank Reyes C&F through Hobby Nut hobby shop Reyes C&F also sponsors through Hobby Nut Clark Hopkins regret error QUALITY I1ITGRITY SERVICE QUALrr INTEGRITY SERVIcE QUALTTY INtEGRITY SERVICE C S ADVANCED AERO PRODUCTS ~YS&OSSURPASS 120 EXHAUST SYSTEMS FOR RATPERN AIRCRAFT AND UtI1UATE RIPE SIUCONE COUPLERS AND TAIL PIPES ALSO AVAILABLE CALl 05 WSITE F05 eFOi54AT5 4 OEAI05 riajawo esilts AT 1 Box 365-C ANNA TX 7540 14 924-3940 aLATHES IMILLS NRTALS BOOKS 00PRECISION INSTRUteNTS -~CCMLETE CIITALOC $200 iOOOs items 2100 Sl Rood CAMPBELL TOOLS CO 5pino1fio1d 04 45505 513 3226562 Rubber 6 Engine Power Free Flight Display Control une Electric Power RIC Airplanes new illustrated 32 page tabloid size catalog US 6 Canada $100 Foreigh 8300 Penn valley Hobby center 837-A W Main St Lanadale PA 19448 215- 368-0770 WORLDS LARGEST SCALt PLANS & DOCUMENTATFJN StRVkt 100000 AIRCRAFT PHOTOS PLANS ENLARGING 130 SCALE PLANS ze 120 PAGE CATALOG $5 00 USA & CANADA $1000 AIR OVERSEAS Jim Pepsins SCALE PLANS AND PHOTO StRVCE 3209 MADISdN AVE GREENSBORO NC 27403 l22-5239 manudutta-ed AEROCRAFT