TUK/W design around doing well flown known Unli bber fi Jim WHETHER YOURE BETTING money marbles chalk blood lines count youre looking winner Jim OReillys Tubestake OMT can trace its lineage back decade what Category II Unlimited design literally flown entire OReilly family design evolved original 245 sq Tubestake published Flying Mod els 1975 through geodetic 300 sq version improved torsional strength 1979 Flying Models model presented TS OMT has creased wingspan warp-resistant Union Jack construction new carved prop featuring less blade area improved blade angle distribution plane now carries 250 sq wing area aloft nominal airframe weight 422 oz powered strands -in rubber FAI Model Supplies High placings Nationals competition late 1 970s right up present point designs continued refinement success Fuselage construction Tubestake OMT like its predecessors employs rolled sheet balsa motor tube Use adequately wide unspliced sheet 6 balsa possible cut precisely 4 x 36 inwith edges vertical corners square Coat side fuselage blank three four heavy coats full-strength clear dope After dope dries wet opposite side blank water will immediately begin curl can wrapped around form such piece pipe old fluorescent light tube taped place until dries After blank completely dryat least 24 hours remove form carefully squeeze edges together cylindrical shape Beginning end blank moving other use Super Jet glue seam best technique squeeze inch seam together time apply Super Jet sparingly let set up move next inch Go slowly will rewarded nearly perfect cylinder Should slightly out round ply reinforcing rings nose plug will help round out nicely Form two 1/32 ply rings same manner motor tube insert shown plans motor tube should covered single layer fiberglass cloth 60 75 oz per sq yard overlapped about half inch Sand tube carefully remove bumps excessive resin cover fiberglass layer tissue sake appearance tail boom blank wrapped around 60 Model Aviation version iners Top In its glide path Tubestake prac tically level horizon Properly trimmed model will make complete glide circle 20 25 seconds has good airspeed very low sink rate Above Jim OReilly sends Tubestake aloft another flight has steep spiral climb right prop folds goes right glide turn bobble tapered form same manner motor tube blank seam similarly glued After boom formed can covered single layer tissue Pre dope boom prior covering Attach tissue dope along edge wrap around boom attach other edge Dope down strip approximately -in wide either end boom watershrink After tissue dries stick down over brushing thinner soak through soften dope underneath Add couple coats dope good measure Construct wing mount shown plans can custom-fitted fuselage wrapping strip fine sand paper around motor tube sanding away tube becomes sort rasp round out bottom wing mount fit perfect cover mount tissue dope set aside until later Flying surfaces Stack-saw ribs both wing stabilizer re quired thicknesses wood Pin down leading edge LE trailing edge TE wing packing up front TE conform undercamber airfoil Glue non-diagonal ribs upper spar cap time Omit ribs dihedral polyhedral joints turbulator stringers now Remove wing building board add lower spar cap Re-pin wing panels being careful shim needed Y16-in washout wing tip Install diagonal ribs except immediately adjacent dihedral polyhedral joints along top stringers should glued place after dihedral polyhedral joints locked respective angles dihedral view shown plan per tradition dihedral polyhedral gussets actually set needed angles usual propping up measuring three gussets cut ac cording plan slipped between spars center joint will neces sary cut out rib sections between spar caps allow passage -in ply gusset joint should test-fitted trimmed needed until everything fits close perfect possible Shear webs vertical-grain -in balsa should set between spar caps main center panels Outboard polyhedral gusset single /16-in vertical shear web will add sufficient flex resistance tip panels stabilizer built essentially same wing same sequential stepsexcept dihedral shear webs fin construction selfexplanatory completed flying sur faces should carefully sanded pre pared covering Japanese tissue preferred covering material tissue strong shrinking tendencies such Peck-Polymers used very careful shrinking processparticularly fin stabilizer best shrinking results can using rubbing alcohol isopropyl misted onto surfaces atomizer rather water As precautionary measure well wait until fin glued tail boom before fin covering shrunk After fin glued place install i6 ply stab platform aligning relation fin though stab will require some tilt glide circle youre prob ably better off line up stab mount perpendicular fin pack up stab needed later flight trimming process Carving prop propeller very soul TS OMT incorporating Eugene Larrabees ideas blade angle area distribution less total blade area intent improve overall propeller efficiency Although idea carving assembling prop weighty average modeler can handled quite methodically following sequence Blades Saw two identical blanks same -in medium balsa stock weight density close identical possible Mark edges blanks indicated dimensions shown plan measuring carefully March 1987 61 Jim begins cranking turns model held stooge No winding tube wind ing rod used because fiberglass-wrapped motortube strong enough totake blown rubber motor damage Its handy have bother contraptions Nose plug pulled outtodisplaythe prop shaft sheetaluminumwinding hook Notethe small rubberband just behind winding hook keeps 12 motor strands together back surface have selected front face blank Draw smooth curved line through series points shown small isometric view plan carve away back side blank down line have drawn Carve slight undercamber shown sand back blade final contour front face blade can now carved airfoil section plan Final-sand blade preparation doping Use enough coats dope cause blades have definite sheen Hub shaft hub shaft wires bent /16 music wire Omit final 900 bend prop shaft until after inserted /16-in ID FAI shaft bushing thrust washer tension spring Bend wire hub closely possible pattern plan Twist freehanded torsional droop hub ends per end view Jig Construct prop jig detailed plan glued together except two jig blocks hinge area interchangeable drilling hinge hole blades other checking hub angle jig blocks made single piece 1 x 2-in pine fir drilled /32 bit set precisely 150 Once drilled block can sawed apart carefully along 741 line /32 guide hole blocks will bushed needed removable piece K&S %2-in OD brass tubing As shown jig fixture drawing two blade support blocks both cham fered knife edge block touches blade block cut 34750 located section A-A cham fered edge block located hinge area should chamfered both edges touches blade along center block Drilling hinge angle Place blade prop jig drill block screwed place Using Yz-in guide hole pass drill bit back side jig block through blade Insert 346-in piece AD-in OD aluminum tubing hole drilled blade Place 342-in OD brass tubing guide hole jig block run /16-in piece music wire through aluminum tube prop blade Work everything around until blade lies flat prop jig aluminum tubing position Carefully apply single drop cyanoacrylate CyA aluminum tubing lock place Gently remove blade assembly jig build up fillet baking soda around end hinge tube Soak area CyA CyA will make baking soda rock hard excellent support surface aluminum tube hinge bushing Return blade prop jig final angle check blade should lie easily pitch blocks /16 music wire place again Repeat process other blade youre almost home free Checking hub angle Bend prop shaft 900 solder wire hub first wrapping soft copper wire reinforcement Try locate shaft close center hub possible eyeball droop angles make sure too equal relation prop shaft Replace prop blade drilling block prop jig block used checking wire hub angle Slip AD-in brass POLYl-IESHAL BREAK 0OINT JWIG LA SHIM IN S/I6 WASHOUT AT THIS POINT3/2i IGU WNG zm rn 77TN 1/16 BALSA 6-IFET WING TIPS / I/E BALSA VERT GRAIN SHEAR WEB 1/16 I/B BALSA SPAR lABI/B BALSA SPAF CAPS BIND WITH WIRE AND SOLDERI/IA DIA MUSIC WIRE - \W WHEEL RETAINER BRASS WASHER PAl TGNSION SPRING IA6 ID BB THRUST WASHER 85/4FAI 1/16 ID SHAFT BUSHING STOP SCREWNOSEBLOCK PROM LAMINATED CROSS-GRAINED BALSA I/IAMW-D PLACES 1/4 HO WOOD PLUG NOSE PLUG DETAIL 1/SD PLY SJPPORT RING PINE SPLICE BRACE 0I5345 bushing guide hole end hub wire end brass bushing Both drooped ends hub wire should correct angle indicated following simultaneous readings A The middle portion hub wire should parallel blade centerline shown prop jig baseboard B The prop shaft should per pendicular baseboard both side view end view Use triangle check Tweak shaft wire hub wire needed get perfect alignment Complete nose assembly lami nating nose block cross-grained sheet balsa Trim spruce basswood plug fits snugly ply reinforcing ring Note nose plug has section removed glued fuselage proper indexing key -in OD hard aluminum rear motor anchor tube dethermalizer DT snuffer tube lower DT anchor dowel -in sheet alumi num winding hook last items 62 Model Aviation /7 L16 BALSA DIAGONAL RIF Ijetnermalizer setup very simpie anti rellawe ue juss nuok br both popping up holding down aluminum snuffer tube flared easy insertion fuse put FROI 1/16 BALSA SHEET MOTOR TUBE-ROLL 1/16 4 36 BALS COVER WITH 6 OZ FIBERGLASS CLOTH Full-Size Plans. Page 170 /B SO BALSA [FADING EDGE I/IA BAU WING 8115 BID7-K zz zi= i I/BSO BALSA LE 1/32 BALSA HOOKPILL BALSA TUBE 1/32 PLY SUPPORT II I/B BALSA VERT DRAIN SHEAR WEBS4BAYSI S/3DBALSA RIBS I/B HARD ALUMINUM WINDING HOOK 3/32 1/4 BALSA TE INE SPLICE BRACESPRUCE ________________RUNNERS LS DOWELS TEST FOR LOCATING1/16 BALSAI/IA BALSA AND CGSHEETSHEET ~JFB7/SECTION B-B / KKIF L-B WING MOUNT I/IA BALSA SHEET TOP SIDES- 1/8 DOWEL HOLG DOWNS 13 REODI 1/16s I/B SPRUCE TOP RUNNERS SEE SECTION B-B 1/32 BALSA ____I/IA I/A BALSASHEET SPARS I/IAs3/IA -BALSA SPARSTAB RIB1/32 BALSA CAPSSHEET STAB DIAGONAL RIB I/IA I/B SHEETWING RIB BALSAI/IA BALSAU IA BALSA SHEET 1/2 BALSA TAPERED WING DIAGONAL RIB TBAILING EDGE STABILIZER WING RIB PATTERNS 4 PINE OR FIR BLOCK PINE OR FIR 192 3PLACES t/ A-A I5o____ BLADE IiIjISPRUCE LOC ____________________CHECKING JIG ~THRUST--BSNDING ___________________JFOR WIRE HUB BLADE ANGLE 3475 741 195295470310.0 25951-IDRI LL BLOCK BLADES -- oPROP CONSTRUCTION 070-IDETAIL 495 513I959___________ 24430NOT TO SCALE PROP BLADE PROP BLADESVIEW OF FWD FACE SAW OUTLINE FROM 3/4 MED BALSA MARK DIMENSIONS GIVEN BACK FROM FWD FACE B DRAW SMOOTH CURVE THRU POINTS CARVE AWAY FROM BACK OF BLOCK CROSSED HATCHED AREA IN SKETCH AT RIGHT CARVE FWD FACE TO AIRFOIL SECTION SHOWN I/IA SOFT BALSA STAB TIPS WING CONSTRUCTION SEQUENCE PIN DOWN LEADING EDGE TRAILING EDGE SHIM FRONT OP TRAILING EDGE 2GLUE IN STRAIGHT RIBS UPPER SPAR CAP 3 REMOVE FROM BENCH IA APPLY LOWER SPAR CAP 4 RETURN TO BENCH B SHIM IN TIP WASHOUT S INSTALL DIAGONAL RIBS FOLLOWED BY SPARS 25 WING DIHEDRAL PLAN I/B PLY SCAWP______________________________ AS SHOWN DIHEDRAL BRACE I/IA PLY SCARF ENDS POLYHEDRAL BRACE I/B SO BALSA I/IA I/B020 COPPER WIRE BALSA RIBS I/IA PLYWOODI/3D GRAIN BALSA BLANK FOR TAILBOOM / S/B BALSA ROD STAB FORM ---------- STRIP U I/3D PLY FIN SUPPORTVIA PLY RING TAB PLATPORMEUCIDENCE FUSELAGE SIDE VIEW MS _____- I/B DOWEL EPOSY I/B SOLOWER 0/TANCHOR / BALSA TUB ESTAKE Urn. REAR MOTOR ANCHOR 1/4 OD HARD ALUMI/IA BALSAD/T SNUFFER 250 50 IN MULVIHILL TUBE 175 LONGBULKHEAD1/4 ALUM TUBE FLARE ONE ENDI/IA BALSA BY JIM OREILLY LARRY KRIJSEBULKHEAD added made ready test flying Add braided fishing line turbulators both wing prop turbulator should added atop front stringer wing approximately 10% aft leading edge prop Both turbulators may simply doped place Flight trimming Balance plane rubber motor installed point shown relation wing chord sliding wing mount fore aft correct balance has achieved wing mount glued place Pack up stabilizer approximate incidence blocks shown plans Set up plane follows flight pattern climb right glide left 1 Be sure wing tip washout equal both panels No other wing warps required 2 Tilt left stab tip high viewed rear Start stab tilted approximately half high left main wing panel glide circle Continued page 157 March 1 987 63 L TRACING RY JOF il prop mechanism shows wirewrapped Solder joint between prop shaft wire hub Note baking soda/CyAfilletaround hinge tube prop blade removable wire keeper holding blade hub Plan text detail things NOWLOWEST PRICES ON NI-CAD BATTERIES SANYO AA CELL Made Japan 500MAH178 7 SANYO FLAT-PACK W/WIRE 6OV-1200MAH1714 13 SANYO C CELL 600MAH. 328 2 SANYO SUB-C STICK 36V-1200MAH 1000 8 SANYO Tx-PACK W/WIRE 96V-500MAH1422 14 SAFT NAtO-BOX HUMP W/PLUG 72V-12OIIMAH2040 3 SANYO SUB-C 1200MAH3288 SANYO RX-PACK W/WIRE 6OV-4SOMAH111415 SAFT RACE-PACK WPLUG 7 2V-1200MAH1942 4 SANYO HUMP-PACK W/PLUGt4V-1200MAH238210 SAFT 0 CELL Made Prance 4000MAH6B616 SAFT TX-PACK 96V-500MAH 1342 5 SANYO HUMP-PACK W/PLUG 72V-1200MAH 2040 11 SAFT AF CELL 800MAH342 17 SAPT tX-PACK 4BV-S8OMAH686 6 SANYO RACE-PACK W/PLUG 72V-1200MAH2000 12 SAFT AA CELL SOOMAM164 18 GE/OS FLAT RX-PACK 6OV/48V-25OMAH686 I1 DEALER DISCOUNTS AVAILABLE MINIMUM ORDER $200 I DEVELOPMENT CO lIui PO BOX 2406 ERTON CA 92633 ~#21 3 690-2019 879-3266 Tu besta kelO Reilly Continued page 63 too tight reduce tilt too open wandering increase tilt 1/32 time 3 The rudder tab should offset left required achieve glide circle about 20 25 sec calm air 4 Offset nose block approxi mately 20 30 right thrust 30 50 downthrust 5 Key wing stab maintain consistent trim Hand-glide ship few times make sure wont anything ridiculous begin powered flightsgently incre mentally Start enough winds motor plane have power flight its ownbut winds mishap will bring destruction Lots time spent building plane demands lots time practice get flying well The desired flight path continuous vertical spiral right accompanied decreasing climb angle motor torque lessens time prop folds plane should leveled out transi tion smoothly right-hand power Remember 40 Wing 15 25 Engines Dealers & Distributors Welcomed Phone 703 273-9593 INE MODELS INC P0 Box 2136 Fairtan Vrrgpnre 22031 U S pattern left-hand glide Any wav ering discontinuity spiral climb right may indicate need center gravity CG change thrust change two problems may occur Problem plane tries start wing- over best Control Line tradition about eight 10 seconds full-power flight Solution No 1 wingover seems fairly constant speed try reducing right thrust just bit Solution No 2 plane slows down just before commencing wingover CG may too far aft Try moving wing again Recheck readjust glide wing moved Problem plane shows tendency spiral glide encountering strong thermal activity Solution Reduce rudder tab setting bit open up glide turn The model flies 28 oz -in FAI rubber made up 12-strand motor giving up weight model just over 7 oz Below table suggested component weights Wing161 oz Fuselage160 oz Prop assembly59 oz Stabilizer34 oz Winding hook08 oz Airframe weight422 oz Rubber280 oz Total weight702 oz The model could built lighter weights midday thermal rider theres little incentive difficult enough dethermalize strong lift already 1985 Ft Worth Planes- men Labor Day Contest TS OMT worrisome flight during drifted around about 6 mm tail popped upand no apparent loss altitude If choose build TS OMT Jim OReilly would happy correspond about design Address Jim OReilly 4760 N Battin Wichita KS 67220 Given its long lineage success hands OReilly clan certainly worthy ship consider Mulvihill entry next contest season ponding advertisers mention read about ModelAviation March 1987 157 p Classic R/C Scale E ~GREAT LAKE DO YOU HATE TO INSTALL HINGES st exciting product introduced RIO Field * Reflects its name easy hinges install * A Single Slot Few Drops C/A Glue Gouging Pinning Hinge Pins worry about * Dont let small size fool theyre Incredibly Strong * Virtually Indestructible Designed 1/2 Thru Giant Scale * Demonstrated major RC Model Shows * Available Hobby Dealer 24 EASY HlNs $295 NPacnfic SE Suite DSan Marcos Ca 92069
Edition: Model Aviation - 1987/03
Page Numbers: 60, 61, 62, 63, 157
TUK/W design around doing well flown known Unli bber fi Jim WHETHER YOURE BETTING money marbles chalk blood lines count youre looking winner Jim OReillys Tubestake OMT can trace its lineage back decade what Category II Unlimited design literally flown entire OReilly family design evolved original 245 sq Tubestake published Flying Mod els 1975 through geodetic 300 sq version improved torsional strength 1979 Flying Models model presented TS OMT has creased wingspan warp-resistant Union Jack construction new carved prop featuring less blade area improved blade angle distribution plane now carries 250 sq wing area aloft nominal airframe weight 422 oz powered strands -in rubber FAI Model Supplies High placings Nationals competition late 1 970s right up present point designs continued refinement success Fuselage construction Tubestake OMT like its predecessors employs rolled sheet balsa motor tube Use adequately wide unspliced sheet 6 balsa possible cut precisely 4 x 36 inwith edges vertical corners square Coat side fuselage blank three four heavy coats full-strength clear dope After dope dries wet opposite side blank water will immediately begin curl can wrapped around form such piece pipe old fluorescent light tube taped place until dries After blank completely dryat least 24 hours remove form carefully squeeze edges together cylindrical shape Beginning end blank moving other use Super Jet glue seam best technique squeeze inch seam together time apply Super Jet sparingly let set up move next inch Go slowly will rewarded nearly perfect cylinder Should slightly out round ply reinforcing rings nose plug will help round out nicely Form two 1/32 ply rings same manner motor tube insert shown plans motor tube should covered single layer fiberglass cloth 60 75 oz per sq yard overlapped about half inch Sand tube carefully remove bumps excessive resin cover fiberglass layer tissue sake appearance tail boom blank wrapped around 60 Model Aviation version iners Top In its glide path Tubestake prac tically level horizon Properly trimmed model will make complete glide circle 20 25 seconds has good airspeed very low sink rate Above Jim OReilly sends Tubestake aloft another flight has steep spiral climb right prop folds goes right glide turn bobble tapered form same manner motor tube blank seam similarly glued After boom formed can covered single layer tissue Pre dope boom prior covering Attach tissue dope along edge wrap around boom attach other edge Dope down strip approximately -in wide either end boom watershrink After tissue dries stick down over brushing thinner soak through soften dope underneath Add couple coats dope good measure Construct wing mount shown plans can custom-fitted fuselage wrapping strip fine sand paper around motor tube sanding away tube becomes sort rasp round out bottom wing mount fit perfect cover mount tissue dope set aside until later Flying surfaces Stack-saw ribs both wing stabilizer re quired thicknesses wood Pin down leading edge LE trailing edge TE wing packing up front TE conform undercamber airfoil Glue non-diagonal ribs upper spar cap time Omit ribs dihedral polyhedral joints turbulator stringers now Remove wing building board add lower spar cap Re-pin wing panels being careful shim needed Y16-in washout wing tip Install diagonal ribs except immediately adjacent dihedral polyhedral joints along top stringers should glued place after dihedral polyhedral joints locked respective angles dihedral view shown plan per tradition dihedral polyhedral gussets actually set needed angles usual propping up measuring three gussets cut ac cording plan slipped between spars center joint will neces sary cut out rib sections between spar caps allow passage -in ply gusset joint should test-fitted trimmed needed until everything fits close perfect possible Shear webs vertical-grain -in balsa should set between spar caps main center panels Outboard polyhedral gusset single /16-in vertical shear web will add sufficient flex resistance tip panels stabilizer built essentially same wing same sequential stepsexcept dihedral shear webs fin construction selfexplanatory completed flying sur faces should carefully sanded pre pared covering Japanese tissue preferred covering material tissue strong shrinking tendencies such Peck-Polymers used very careful shrinking processparticularly fin stabilizer best shrinking results can using rubbing alcohol isopropyl misted onto surfaces atomizer rather water As precautionary measure well wait until fin glued tail boom before fin covering shrunk After fin glued place install i6 ply stab platform aligning relation fin though stab will require some tilt glide circle youre prob ably better off line up stab mount perpendicular fin pack up stab needed later flight trimming process Carving prop propeller very soul TS OMT incorporating Eugene Larrabees ideas blade angle area distribution less total blade area intent improve overall propeller efficiency Although idea carving assembling prop weighty average modeler can handled quite methodically following sequence Blades Saw two identical blanks same -in medium balsa stock weight density close identical possible Mark edges blanks indicated dimensions shown plan measuring carefully March 1987 61 Jim begins cranking turns model held stooge No winding tube wind ing rod used because fiberglass-wrapped motortube strong enough totake blown rubber motor damage Its handy have bother contraptions Nose plug pulled outtodisplaythe prop shaft sheetaluminumwinding hook Notethe small rubberband just behind winding hook keeps 12 motor strands together back surface have selected front face blank Draw smooth curved line through series points shown small isometric view plan carve away back side blank down line have drawn Carve slight undercamber shown sand back blade final contour front face blade can now carved airfoil section plan Final-sand blade preparation doping Use enough coats dope cause blades have definite sheen Hub shaft hub shaft wires bent /16 music wire Omit final 900 bend prop shaft until after inserted /16-in ID FAI shaft bushing thrust washer tension spring Bend wire hub closely possible pattern plan Twist freehanded torsional droop hub ends per end view Jig Construct prop jig detailed plan glued together except two jig blocks hinge area interchangeable drilling hinge hole blades other checking hub angle jig blocks made single piece 1 x 2-in pine fir drilled /32 bit set precisely 150 Once drilled block can sawed apart carefully along 741 line /32 guide hole blocks will bushed needed removable piece K&S %2-in OD brass tubing As shown jig fixture drawing two blade support blocks both cham fered knife edge block touches blade block cut 34750 located section A-A cham fered edge block located hinge area should chamfered both edges touches blade along center block Drilling hinge angle Place blade prop jig drill block screwed place Using Yz-in guide hole pass drill bit back side jig block through blade Insert 346-in piece AD-in OD aluminum tubing hole drilled blade Place 342-in OD brass tubing guide hole jig block run /16-in piece music wire through aluminum tube prop blade Work everything around until blade lies flat prop jig aluminum tubing position Carefully apply single drop cyanoacrylate CyA aluminum tubing lock place Gently remove blade assembly jig build up fillet baking soda around end hinge tube Soak area CyA CyA will make baking soda rock hard excellent support surface aluminum tube hinge bushing Return blade prop jig final angle check blade should lie easily pitch blocks /16 music wire place again Repeat process other blade youre almost home free Checking hub angle Bend prop shaft 900 solder wire hub first wrapping soft copper wire reinforcement Try locate shaft close center hub possible eyeball droop angles make sure too equal relation prop shaft Replace prop blade drilling block prop jig block used checking wire hub angle Slip AD-in brass POLYl-IESHAL BREAK 0OINT JWIG LA SHIM IN S/I6 WASHOUT AT THIS POINT3/2i IGU WNG zm rn 77TN 1/16 BALSA 6-IFET WING TIPS / I/E BALSA VERT GRAIN SHEAR WEB 1/16 I/B BALSA SPAR lABI/B BALSA SPAF CAPS BIND WITH WIRE AND SOLDERI/IA DIA MUSIC WIRE - \W WHEEL RETAINER BRASS WASHER PAl TGNSION SPRING IA6 ID BB THRUST WASHER 85/4FAI 1/16 ID SHAFT BUSHING STOP SCREWNOSEBLOCK PROM LAMINATED CROSS-GRAINED BALSA I/IAMW-D PLACES 1/4 HO WOOD PLUG NOSE PLUG DETAIL 1/SD PLY SJPPORT RING PINE SPLICE BRACE 0I5345 bushing guide hole end hub wire end brass bushing Both drooped ends hub wire should correct angle indicated following simultaneous readings A The middle portion hub wire should parallel blade centerline shown prop jig baseboard B The prop shaft should per pendicular baseboard both side view end view Use triangle check Tweak shaft wire hub wire needed get perfect alignment Complete nose assembly lami nating nose block cross-grained sheet balsa Trim spruce basswood plug fits snugly ply reinforcing ring Note nose plug has section removed glued fuselage proper indexing key -in OD hard aluminum rear motor anchor tube dethermalizer DT snuffer tube lower DT anchor dowel -in sheet alumi num winding hook last items 62 Model Aviation /7 L16 BALSA DIAGONAL RIF Ijetnermalizer setup very simpie anti rellawe ue juss nuok br both popping up holding down aluminum snuffer tube flared easy insertion fuse put FROI 1/16 BALSA SHEET MOTOR TUBE-ROLL 1/16 4 36 BALS COVER WITH 6 OZ FIBERGLASS CLOTH Full-Size Plans. Page 170 /B SO BALSA [FADING EDGE I/IA BAU WING 8115 BID7-K zz zi= i I/BSO BALSA LE 1/32 BALSA HOOKPILL BALSA TUBE 1/32 PLY SUPPORT II I/B BALSA VERT DRAIN SHEAR WEBS4BAYSI S/3DBALSA RIBS I/B HARD ALUMINUM WINDING HOOK 3/32 1/4 BALSA TE INE SPLICE BRACESPRUCE ________________RUNNERS LS DOWELS TEST FOR LOCATING1/16 BALSAI/IA BALSA AND CGSHEETSHEET ~JFB7/SECTION B-B / KKIF L-B WING MOUNT I/IA BALSA SHEET TOP SIDES- 1/8 DOWEL HOLG DOWNS 13 REODI 1/16s I/B SPRUCE TOP RUNNERS SEE SECTION B-B 1/32 BALSA ____I/IA I/A BALSASHEET SPARS I/IAs3/IA -BALSA SPARSTAB RIB1/32 BALSA CAPSSHEET STAB DIAGONAL RIB I/IA I/B SHEETWING RIB BALSAI/IA BALSAU IA BALSA SHEET 1/2 BALSA TAPERED WING DIAGONAL RIB TBAILING EDGE STABILIZER WING RIB PATTERNS 4 PINE OR FIR BLOCK PINE OR FIR 192 3PLACES t/ A-A I5o____ BLADE IiIjISPRUCE LOC ____________________CHECKING JIG ~THRUST--BSNDING ___________________JFOR WIRE HUB BLADE ANGLE 3475 741 195295470310.0 25951-IDRI LL BLOCK BLADES -- oPROP CONSTRUCTION 070-IDETAIL 495 513I959___________ 24430NOT TO SCALE PROP BLADE PROP BLADESVIEW OF FWD FACE SAW OUTLINE FROM 3/4 MED BALSA MARK DIMENSIONS GIVEN BACK FROM FWD FACE B DRAW SMOOTH CURVE THRU POINTS CARVE AWAY FROM BACK OF BLOCK CROSSED HATCHED AREA IN SKETCH AT RIGHT CARVE FWD FACE TO AIRFOIL SECTION SHOWN I/IA SOFT BALSA STAB TIPS WING CONSTRUCTION SEQUENCE PIN DOWN LEADING EDGE TRAILING EDGE SHIM FRONT OP TRAILING EDGE 2GLUE IN STRAIGHT RIBS UPPER SPAR CAP 3 REMOVE FROM BENCH IA APPLY LOWER SPAR CAP 4 RETURN TO BENCH B SHIM IN TIP WASHOUT S INSTALL DIAGONAL RIBS FOLLOWED BY SPARS 25 WING DIHEDRAL PLAN I/B PLY SCAWP______________________________ AS SHOWN DIHEDRAL BRACE I/IA PLY SCARF ENDS POLYHEDRAL BRACE I/B SO BALSA I/IA I/B020 COPPER WIRE BALSA RIBS I/IA PLYWOODI/3D GRAIN BALSA BLANK FOR TAILBOOM / S/B BALSA ROD STAB FORM ---------- STRIP U I/3D PLY FIN SUPPORTVIA PLY RING TAB PLATPORMEUCIDENCE FUSELAGE SIDE VIEW MS _____- I/B DOWEL EPOSY I/B SOLOWER 0/TANCHOR / BALSA TUB ESTAKE Urn. REAR MOTOR ANCHOR 1/4 OD HARD ALUMI/IA BALSAD/T SNUFFER 250 50 IN MULVIHILL TUBE 175 LONGBULKHEAD1/4 ALUM TUBE FLARE ONE ENDI/IA BALSA BY JIM OREILLY LARRY KRIJSEBULKHEAD added made ready test flying Add braided fishing line turbulators both wing prop turbulator should added atop front stringer wing approximately 10% aft leading edge prop Both turbulators may simply doped place Flight trimming Balance plane rubber motor installed point shown relation wing chord sliding wing mount fore aft correct balance has achieved wing mount glued place Pack up stabilizer approximate incidence blocks shown plans Set up plane follows flight pattern climb right glide left 1 Be sure wing tip washout equal both panels No other wing warps required 2 Tilt left stab tip high viewed rear Start stab tilted approximately half high left main wing panel glide circle Continued page 157 March 1 987 63 L TRACING RY JOF il prop mechanism shows wirewrapped Solder joint between prop shaft wire hub Note baking soda/CyAfilletaround hinge tube prop blade removable wire keeper holding blade hub Plan text detail things NOWLOWEST PRICES ON NI-CAD BATTERIES SANYO AA CELL Made Japan 500MAH178 7 SANYO FLAT-PACK W/WIRE 6OV-1200MAH1714 13 SANYO C CELL 600MAH. 328 2 SANYO SUB-C STICK 36V-1200MAH 1000 8 SANYO Tx-PACK W/WIRE 96V-500MAH1422 14 SAFT NAtO-BOX HUMP W/PLUG 72V-12OIIMAH2040 3 SANYO SUB-C 1200MAH3288 SANYO RX-PACK W/WIRE 6OV-4SOMAH111415 SAFT RACE-PACK WPLUG 7 2V-1200MAH1942 4 SANYO HUMP-PACK W/PLUGt4V-1200MAH238210 SAFT 0 CELL Made Prance 4000MAH6B616 SAFT TX-PACK 96V-500MAH 1342 5 SANYO HUMP-PACK W/PLUG 72V-1200MAH 2040 11 SAFT AF CELL 800MAH342 17 SAPT tX-PACK 4BV-S8OMAH686 6 SANYO RACE-PACK W/PLUG 72V-1200MAH2000 12 SAFT AA CELL SOOMAM164 18 GE/OS FLAT RX-PACK 6OV/48V-25OMAH686 I1 DEALER DISCOUNTS AVAILABLE MINIMUM ORDER $200 I DEVELOPMENT CO lIui PO BOX 2406 ERTON CA 92633 ~#21 3 690-2019 879-3266 Tu besta kelO Reilly Continued page 63 too tight reduce tilt too open wandering increase tilt 1/32 time 3 The rudder tab should offset left required achieve glide circle about 20 25 sec calm air 4 Offset nose block approxi mately 20 30 right thrust 30 50 downthrust 5 Key wing stab maintain consistent trim Hand-glide ship few times make sure wont anything ridiculous begin powered flightsgently incre mentally Start enough winds motor plane have power flight its ownbut winds mishap will bring destruction Lots time spent building plane demands lots time practice get flying well The desired flight path continuous vertical spiral right accompanied decreasing climb angle motor torque lessens time prop folds plane should leveled out transi tion smoothly right-hand power Remember 40 Wing 15 25 Engines Dealers & Distributors Welcomed Phone 703 273-9593 INE MODELS INC P0 Box 2136 Fairtan Vrrgpnre 22031 U S pattern left-hand glide Any wav ering discontinuity spiral climb right may indicate need center gravity CG change thrust change two problems may occur Problem plane tries start wing- over best Control Line tradition about eight 10 seconds full-power flight Solution No 1 wingover seems fairly constant speed try reducing right thrust just bit Solution No 2 plane slows down just before commencing wingover CG may too far aft Try moving wing again Recheck readjust glide wing moved Problem plane shows tendency spiral glide encountering strong thermal activity Solution Reduce rudder tab setting bit open up glide turn The model flies 28 oz -in FAI rubber made up 12-strand motor giving up weight model just over 7 oz Below table suggested component weights Wing161 oz Fuselage160 oz Prop assembly59 oz Stabilizer34 oz Winding hook08 oz Airframe weight422 oz Rubber280 oz Total weight702 oz The model could built lighter weights midday thermal rider theres little incentive difficult enough dethermalize strong lift already 1985 Ft Worth Planes- men Labor Day Contest TS OMT worrisome flight during drifted around about 6 mm tail popped upand no apparent loss altitude If choose build TS OMT Jim OReilly would happy correspond about design Address Jim OReilly 4760 N Battin Wichita KS 67220 Given its long lineage success hands OReilly clan certainly worthy ship consider Mulvihill entry next contest season ponding advertisers mention read about ModelAviation March 1987 157 p Classic R/C Scale E ~GREAT LAKE DO YOU HATE TO INSTALL HINGES st exciting product introduced RIO Field * Reflects its name easy hinges install * A Single Slot Few Drops C/A Glue Gouging Pinning Hinge Pins worry about * Dont let small size fool theyre Incredibly Strong * Virtually Indestructible Designed 1/2 Thru Giant Scale * Demonstrated major RC Model Shows * Available Hobby Dealer 24 EASY HlNs $295 NPacnfic SE Suite DSan Marcos Ca 92069
Edition: Model Aviation - 1987/03
Page Numbers: 60, 61, 62, 63, 157
TUK/W design around doing well flown known Unli bber fi Jim WHETHER YOURE BETTING money marbles chalk blood lines count youre looking winner Jim OReillys Tubestake OMT can trace its lineage back decade what Category II Unlimited design literally flown entire OReilly family design evolved original 245 sq Tubestake published Flying Mod els 1975 through geodetic 300 sq version improved torsional strength 1979 Flying Models model presented TS OMT has creased wingspan warp-resistant Union Jack construction new carved prop featuring less blade area improved blade angle distribution plane now carries 250 sq wing area aloft nominal airframe weight 422 oz powered strands -in rubber FAI Model Supplies High placings Nationals competition late 1 970s right up present point designs continued refinement success Fuselage construction Tubestake OMT like its predecessors employs rolled sheet balsa motor tube Use adequately wide unspliced sheet 6 balsa possible cut precisely 4 x 36 inwith edges vertical corners square Coat side fuselage blank three four heavy coats full-strength clear dope After dope dries wet opposite side blank water will immediately begin curl can wrapped around form such piece pipe old fluorescent light tube taped place until dries After blank completely dryat least 24 hours remove form carefully squeeze edges together cylindrical shape Beginning end blank moving other use Super Jet glue seam best technique squeeze inch seam together time apply Super Jet sparingly let set up move next inch Go slowly will rewarded nearly perfect cylinder Should slightly out round ply reinforcing rings nose plug will help round out nicely Form two 1/32 ply rings same manner motor tube insert shown plans motor tube should covered single layer fiberglass cloth 60 75 oz per sq yard overlapped about half inch Sand tube carefully remove bumps excessive resin cover fiberglass layer tissue sake appearance tail boom blank wrapped around 60 Model Aviation version iners Top In its glide path Tubestake prac tically level horizon Properly trimmed model will make complete glide circle 20 25 seconds has good airspeed very low sink rate Above Jim OReilly sends Tubestake aloft another flight has steep spiral climb right prop folds goes right glide turn bobble tapered form same manner motor tube blank seam similarly glued After boom formed can covered single layer tissue Pre dope boom prior covering Attach tissue dope along edge wrap around boom attach other edge Dope down strip approximately -in wide either end boom watershrink After tissue dries stick down over brushing thinner soak through soften dope underneath Add couple coats dope good measure Construct wing mount shown plans can custom-fitted fuselage wrapping strip fine sand paper around motor tube sanding away tube becomes sort rasp round out bottom wing mount fit perfect cover mount tissue dope set aside until later Flying surfaces Stack-saw ribs both wing stabilizer re quired thicknesses wood Pin down leading edge LE trailing edge TE wing packing up front TE conform undercamber airfoil Glue non-diagonal ribs upper spar cap time Omit ribs dihedral polyhedral joints turbulator stringers now Remove wing building board add lower spar cap Re-pin wing panels being careful shim needed Y16-in washout wing tip Install diagonal ribs except immediately adjacent dihedral polyhedral joints along top stringers should glued place after dihedral polyhedral joints locked respective angles dihedral view shown plan per tradition dihedral polyhedral gussets actually set needed angles usual propping up measuring three gussets cut ac cording plan slipped between spars center joint will neces sary cut out rib sections between spar caps allow passage -in ply gusset joint should test-fitted trimmed needed until everything fits close perfect possible Shear webs vertical-grain -in balsa should set between spar caps main center panels Outboard polyhedral gusset single /16-in vertical shear web will add sufficient flex resistance tip panels stabilizer built essentially same wing same sequential stepsexcept dihedral shear webs fin construction selfexplanatory completed flying sur faces should carefully sanded pre pared covering Japanese tissue preferred covering material tissue strong shrinking tendencies such Peck-Polymers used very careful shrinking processparticularly fin stabilizer best shrinking results can using rubbing alcohol isopropyl misted onto surfaces atomizer rather water As precautionary measure well wait until fin glued tail boom before fin covering shrunk After fin glued place install i6 ply stab platform aligning relation fin though stab will require some tilt glide circle youre prob ably better off line up stab mount perpendicular fin pack up stab needed later flight trimming process Carving prop propeller very soul TS OMT incorporating Eugene Larrabees ideas blade angle area distribution less total blade area intent improve overall propeller efficiency Although idea carving assembling prop weighty average modeler can handled quite methodically following sequence Blades Saw two identical blanks same -in medium balsa stock weight density close identical possible Mark edges blanks indicated dimensions shown plan measuring carefully March 1987 61 Jim begins cranking turns model held stooge No winding tube wind ing rod used because fiberglass-wrapped motortube strong enough totake blown rubber motor damage Its handy have bother contraptions Nose plug pulled outtodisplaythe prop shaft sheetaluminumwinding hook Notethe small rubberband just behind winding hook keeps 12 motor strands together back surface have selected front face blank Draw smooth curved line through series points shown small isometric view plan carve away back side blank down line have drawn Carve slight undercamber shown sand back blade final contour front face blade can now carved airfoil section plan Final-sand blade preparation doping Use enough coats dope cause blades have definite sheen Hub shaft hub shaft wires bent /16 music wire Omit final 900 bend prop shaft until after inserted /16-in ID FAI shaft bushing thrust washer tension spring Bend wire hub closely possible pattern plan Twist freehanded torsional droop hub ends per end view Jig Construct prop jig detailed plan glued together except two jig blocks hinge area interchangeable drilling hinge hole blades other checking hub angle jig blocks made single piece 1 x 2-in pine fir drilled /32 bit set precisely 150 Once drilled block can sawed apart carefully along 741 line /32 guide hole blocks will bushed needed removable piece K&S %2-in OD brass tubing As shown jig fixture drawing two blade support blocks both cham fered knife edge block touches blade block cut 34750 located section A-A cham fered edge block located hinge area should chamfered both edges touches blade along center block Drilling hinge angle Place blade prop jig drill block screwed place Using Yz-in guide hole pass drill bit back side jig block through blade Insert 346-in piece AD-in OD aluminum tubing hole drilled blade Place 342-in OD brass tubing guide hole jig block run /16-in piece music wire through aluminum tube prop blade Work everything around until blade lies flat prop jig aluminum tubing position Carefully apply single drop cyanoacrylate CyA aluminum tubing lock place Gently remove blade assembly jig build up fillet baking soda around end hinge tube Soak area CyA CyA will make baking soda rock hard excellent support surface aluminum tube hinge bushing Return blade prop jig final angle check blade should lie easily pitch blocks /16 music wire place again Repeat process other blade youre almost home free Checking hub angle Bend prop shaft 900 solder wire hub first wrapping soft copper wire reinforcement Try locate shaft close center hub possible eyeball droop angles make sure too equal relation prop shaft Replace prop blade drilling block prop jig block used checking wire hub angle Slip AD-in brass POLYl-IESHAL BREAK 0OINT JWIG LA SHIM IN S/I6 WASHOUT AT THIS POINT3/2i IGU WNG zm rn 77TN 1/16 BALSA 6-IFET WING TIPS / I/E BALSA VERT GRAIN SHEAR WEB 1/16 I/B BALSA SPAR lABI/B BALSA SPAF CAPS BIND WITH WIRE AND SOLDERI/IA DIA MUSIC WIRE - \W WHEEL RETAINER BRASS WASHER PAl TGNSION SPRING IA6 ID BB THRUST WASHER 85/4FAI 1/16 ID SHAFT BUSHING STOP SCREWNOSEBLOCK PROM LAMINATED CROSS-GRAINED BALSA I/IAMW-D PLACES 1/4 HO WOOD PLUG NOSE PLUG DETAIL 1/SD PLY SJPPORT RING PINE SPLICE BRACE 0I5345 bushing guide hole end hub wire end brass bushing Both drooped ends hub wire should correct angle indicated following simultaneous readings A The middle portion hub wire should parallel blade centerline shown prop jig baseboard B The prop shaft should per pendicular baseboard both side view end view Use triangle check Tweak shaft wire hub wire needed get perfect alignment Complete nose assembly lami nating nose block cross-grained sheet balsa Trim spruce basswood plug fits snugly ply reinforcing ring Note nose plug has section removed glued fuselage proper indexing key -in OD hard aluminum rear motor anchor tube dethermalizer DT snuffer tube lower DT anchor dowel -in sheet alumi num winding hook last items 62 Model Aviation /7 L16 BALSA DIAGONAL RIF Ijetnermalizer setup very simpie anti rellawe ue juss nuok br both popping up holding down aluminum snuffer tube flared easy insertion fuse put FROI 1/16 BALSA SHEET MOTOR TUBE-ROLL 1/16 4 36 BALS COVER WITH 6 OZ FIBERGLASS CLOTH Full-Size Plans. Page 170 /B SO BALSA [FADING EDGE I/IA BAU WING 8115 BID7-K zz zi= i I/BSO BALSA LE 1/32 BALSA HOOKPILL BALSA TUBE 1/32 PLY SUPPORT II I/B BALSA VERT DRAIN SHEAR WEBS4BAYSI S/3DBALSA RIBS I/B HARD ALUMINUM WINDING HOOK 3/32 1/4 BALSA TE INE SPLICE BRACESPRUCE ________________RUNNERS LS DOWELS TEST FOR LOCATING1/16 BALSAI/IA BALSA AND CGSHEETSHEET ~JFB7/SECTION B-B / KKIF L-B WING MOUNT I/IA BALSA SHEET TOP SIDES- 1/8 DOWEL HOLG DOWNS 13 REODI 1/16s I/B SPRUCE TOP RUNNERS SEE SECTION B-B 1/32 BALSA ____I/IA I/A BALSASHEET SPARS I/IAs3/IA -BALSA SPARSTAB RIB1/32 BALSA CAPSSHEET STAB DIAGONAL RIB I/IA I/B SHEETWING RIB BALSAI/IA BALSAU IA BALSA SHEET 1/2 BALSA TAPERED WING DIAGONAL RIB TBAILING EDGE STABILIZER WING RIB PATTERNS 4 PINE OR FIR BLOCK PINE OR FIR 192 3PLACES t/ A-A I5o____ BLADE IiIjISPRUCE LOC ____________________CHECKING JIG ~THRUST--BSNDING ___________________JFOR WIRE HUB BLADE ANGLE 3475 741 195295470310.0 25951-IDRI LL BLOCK BLADES -- oPROP CONSTRUCTION 070-IDETAIL 495 513I959___________ 24430NOT TO SCALE PROP BLADE PROP BLADESVIEW OF FWD FACE SAW OUTLINE FROM 3/4 MED BALSA MARK DIMENSIONS GIVEN BACK FROM FWD FACE B DRAW SMOOTH CURVE THRU POINTS CARVE AWAY FROM BACK OF BLOCK CROSSED HATCHED AREA IN SKETCH AT RIGHT CARVE FWD FACE TO AIRFOIL SECTION SHOWN I/IA SOFT BALSA STAB TIPS WING CONSTRUCTION SEQUENCE PIN DOWN LEADING EDGE TRAILING EDGE SHIM FRONT OP TRAILING EDGE 2GLUE IN STRAIGHT RIBS UPPER SPAR CAP 3 REMOVE FROM BENCH IA APPLY LOWER SPAR CAP 4 RETURN TO BENCH B SHIM IN TIP WASHOUT S INSTALL DIAGONAL RIBS FOLLOWED BY SPARS 25 WING DIHEDRAL PLAN I/B PLY SCAWP______________________________ AS SHOWN DIHEDRAL BRACE I/IA PLY SCARF ENDS POLYHEDRAL BRACE I/B SO BALSA I/IA I/B020 COPPER WIRE BALSA RIBS I/IA PLYWOODI/3D GRAIN BALSA BLANK FOR TAILBOOM / S/B BALSA ROD STAB FORM ---------- STRIP U I/3D PLY FIN SUPPORTVIA PLY RING TAB PLATPORMEUCIDENCE FUSELAGE SIDE VIEW MS _____- I/B DOWEL EPOSY I/B SOLOWER 0/TANCHOR / BALSA TUB ESTAKE Urn. REAR MOTOR ANCHOR 1/4 OD HARD ALUMI/IA BALSAD/T SNUFFER 250 50 IN MULVIHILL TUBE 175 LONGBULKHEAD1/4 ALUM TUBE FLARE ONE ENDI/IA BALSA BY JIM OREILLY LARRY KRIJSEBULKHEAD added made ready test flying Add braided fishing line turbulators both wing prop turbulator should added atop front stringer wing approximately 10% aft leading edge prop Both turbulators may simply doped place Flight trimming Balance plane rubber motor installed point shown relation wing chord sliding wing mount fore aft correct balance has achieved wing mount glued place Pack up stabilizer approximate incidence blocks shown plans Set up plane follows flight pattern climb right glide left 1 Be sure wing tip washout equal both panels No other wing warps required 2 Tilt left stab tip high viewed rear Start stab tilted approximately half high left main wing panel glide circle Continued page 157 March 1 987 63 L TRACING RY JOF il prop mechanism shows wirewrapped Solder joint between prop shaft wire hub Note baking soda/CyAfilletaround hinge tube prop blade removable wire keeper holding blade hub Plan text detail things NOWLOWEST PRICES ON NI-CAD BATTERIES SANYO AA CELL Made Japan 500MAH178 7 SANYO FLAT-PACK W/WIRE 6OV-1200MAH1714 13 SANYO C CELL 600MAH. 328 2 SANYO SUB-C STICK 36V-1200MAH 1000 8 SANYO Tx-PACK W/WIRE 96V-500MAH1422 14 SAFT NAtO-BOX HUMP W/PLUG 72V-12OIIMAH2040 3 SANYO SUB-C 1200MAH3288 SANYO RX-PACK W/WIRE 6OV-4SOMAH111415 SAFT RACE-PACK WPLUG 7 2V-1200MAH1942 4 SANYO HUMP-PACK W/PLUGt4V-1200MAH238210 SAFT 0 CELL Made Prance 4000MAH6B616 SAFT TX-PACK 96V-500MAH 1342 5 SANYO HUMP-PACK W/PLUG 72V-1200MAH 2040 11 SAFT AF CELL 800MAH342 17 SAPT tX-PACK 4BV-S8OMAH686 6 SANYO RACE-PACK W/PLUG 72V-1200MAH2000 12 SAFT AA CELL SOOMAM164 18 GE/OS FLAT RX-PACK 6OV/48V-25OMAH686 I1 DEALER DISCOUNTS AVAILABLE MINIMUM ORDER $200 I DEVELOPMENT CO lIui PO BOX 2406 ERTON CA 92633 ~#21 3 690-2019 879-3266 Tu besta kelO Reilly Continued page 63 too tight reduce tilt too open wandering increase tilt 1/32 time 3 The rudder tab should offset left required achieve glide circle about 20 25 sec calm air 4 Offset nose block approxi mately 20 30 right thrust 30 50 downthrust 5 Key wing stab maintain consistent trim Hand-glide ship few times make sure wont anything ridiculous begin powered flightsgently incre mentally Start enough winds motor plane have power flight its ownbut winds mishap will bring destruction Lots time spent building plane demands lots time practice get flying well The desired flight path continuous vertical spiral right accompanied decreasing climb angle motor torque lessens time prop folds plane should leveled out transi tion smoothly right-hand power Remember 40 Wing 15 25 Engines Dealers & Distributors Welcomed Phone 703 273-9593 INE MODELS INC P0 Box 2136 Fairtan Vrrgpnre 22031 U S pattern left-hand glide Any wav ering discontinuity spiral climb right may indicate need center gravity CG change thrust change two problems may occur Problem plane tries start wing- over best Control Line tradition about eight 10 seconds full-power flight Solution No 1 wingover seems fairly constant speed try reducing right thrust just bit Solution No 2 plane slows down just before commencing wingover CG may too far aft Try moving wing again Recheck readjust glide wing moved Problem plane shows tendency spiral glide encountering strong thermal activity Solution Reduce rudder tab setting bit open up glide turn The model flies 28 oz -in FAI rubber made up 12-strand motor giving up weight model just over 7 oz Below table suggested component weights Wing161 oz Fuselage160 oz Prop assembly59 oz Stabilizer34 oz Winding hook08 oz Airframe weight422 oz Rubber280 oz Total weight702 oz The model could built lighter weights midday thermal rider theres little incentive difficult enough dethermalize strong lift already 1985 Ft Worth Planes- men Labor Day Contest TS OMT worrisome flight during drifted around about 6 mm tail popped upand no apparent loss altitude If choose build TS OMT Jim OReilly would happy correspond about design Address Jim OReilly 4760 N Battin Wichita KS 67220 Given its long lineage success hands OReilly clan certainly worthy ship consider Mulvihill entry next contest season ponding advertisers mention read about ModelAviation March 1987 157 p Classic R/C Scale E ~GREAT LAKE DO YOU HATE TO INSTALL HINGES st exciting product introduced RIO Field * Reflects its name easy hinges install * A Single Slot Few Drops C/A Glue Gouging Pinning Hinge Pins worry about * Dont let small size fool theyre Incredibly Strong * Virtually Indestructible Designed 1/2 Thru Giant Scale * Demonstrated major RC Model Shows * Available Hobby Dealer 24 EASY HlNs $295 NPacnfic SE Suite DSan Marcos Ca 92069
Edition: Model Aviation - 1987/03
Page Numbers: 60, 61, 62, 63, 157
TUK/W design around doing well flown known Unli bber fi Jim WHETHER YOURE BETTING money marbles chalk blood lines count youre looking winner Jim OReillys Tubestake OMT can trace its lineage back decade what Category II Unlimited design literally flown entire OReilly family design evolved original 245 sq Tubestake published Flying Mod els 1975 through geodetic 300 sq version improved torsional strength 1979 Flying Models model presented TS OMT has creased wingspan warp-resistant Union Jack construction new carved prop featuring less blade area improved blade angle distribution plane now carries 250 sq wing area aloft nominal airframe weight 422 oz powered strands -in rubber FAI Model Supplies High placings Nationals competition late 1 970s right up present point designs continued refinement success Fuselage construction Tubestake OMT like its predecessors employs rolled sheet balsa motor tube Use adequately wide unspliced sheet 6 balsa possible cut precisely 4 x 36 inwith edges vertical corners square Coat side fuselage blank three four heavy coats full-strength clear dope After dope dries wet opposite side blank water will immediately begin curl can wrapped around form such piece pipe old fluorescent light tube taped place until dries After blank completely dryat least 24 hours remove form carefully squeeze edges together cylindrical shape Beginning end blank moving other use Super Jet glue seam best technique squeeze inch seam together time apply Super Jet sparingly let set up move next inch Go slowly will rewarded nearly perfect cylinder Should slightly out round ply reinforcing rings nose plug will help round out nicely Form two 1/32 ply rings same manner motor tube insert shown plans motor tube should covered single layer fiberglass cloth 60 75 oz per sq yard overlapped about half inch Sand tube carefully remove bumps excessive resin cover fiberglass layer tissue sake appearance tail boom blank wrapped around 60 Model Aviation version iners Top In its glide path Tubestake prac tically level horizon Properly trimmed model will make complete glide circle 20 25 seconds has good airspeed very low sink rate Above Jim OReilly sends Tubestake aloft another flight has steep spiral climb right prop folds goes right glide turn bobble tapered form same manner motor tube blank seam similarly glued After boom formed can covered single layer tissue Pre dope boom prior covering Attach tissue dope along edge wrap around boom attach other edge Dope down strip approximately -in wide either end boom watershrink After tissue dries stick down over brushing thinner soak through soften dope underneath Add couple coats dope good measure Construct wing mount shown plans can custom-fitted fuselage wrapping strip fine sand paper around motor tube sanding away tube becomes sort rasp round out bottom wing mount fit perfect cover mount tissue dope set aside until later Flying surfaces Stack-saw ribs both wing stabilizer re quired thicknesses wood Pin down leading edge LE trailing edge TE wing packing up front TE conform undercamber airfoil Glue non-diagonal ribs upper spar cap time Omit ribs dihedral polyhedral joints turbulator stringers now Remove wing building board add lower spar cap Re-pin wing panels being careful shim needed Y16-in washout wing tip Install diagonal ribs except immediately adjacent dihedral polyhedral joints along top stringers should glued place after dihedral polyhedral joints locked respective angles dihedral view shown plan per tradition dihedral polyhedral gussets actually set needed angles usual propping up measuring three gussets cut ac cording plan slipped between spars center joint will neces sary cut out rib sections between spar caps allow passage -in ply gusset joint should test-fitted trimmed needed until everything fits close perfect possible Shear webs vertical-grain -in balsa should set between spar caps main center panels Outboard polyhedral gusset single /16-in vertical shear web will add sufficient flex resistance tip panels stabilizer built essentially same wing same sequential stepsexcept dihedral shear webs fin construction selfexplanatory completed flying sur faces should carefully sanded pre pared covering Japanese tissue preferred covering material tissue strong shrinking tendencies such Peck-Polymers used very careful shrinking processparticularly fin stabilizer best shrinking results can using rubbing alcohol isopropyl misted onto surfaces atomizer rather water As precautionary measure well wait until fin glued tail boom before fin covering shrunk After fin glued place install i6 ply stab platform aligning relation fin though stab will require some tilt glide circle youre prob ably better off line up stab mount perpendicular fin pack up stab needed later flight trimming process Carving prop propeller very soul TS OMT incorporating Eugene Larrabees ideas blade angle area distribution less total blade area intent improve overall propeller efficiency Although idea carving assembling prop weighty average modeler can handled quite methodically following sequence Blades Saw two identical blanks same -in medium balsa stock weight density close identical possible Mark edges blanks indicated dimensions shown plan measuring carefully March 1987 61 Jim begins cranking turns model held stooge No winding tube wind ing rod used because fiberglass-wrapped motortube strong enough totake blown rubber motor damage Its handy have bother contraptions Nose plug pulled outtodisplaythe prop shaft sheetaluminumwinding hook Notethe small rubberband just behind winding hook keeps 12 motor strands together back surface have selected front face blank Draw smooth curved line through series points shown small isometric view plan carve away back side blank down line have drawn Carve slight undercamber shown sand back blade final contour front face blade can now carved airfoil section plan Final-sand blade preparation doping Use enough coats dope cause blades have definite sheen Hub shaft hub shaft wires bent /16 music wire Omit final 900 bend prop shaft until after inserted /16-in ID FAI shaft bushing thrust washer tension spring Bend wire hub closely possible pattern plan Twist freehanded torsional droop hub ends per end view Jig Construct prop jig detailed plan glued together except two jig blocks hinge area interchangeable drilling hinge hole blades other checking hub angle jig blocks made single piece 1 x 2-in pine fir drilled /32 bit set precisely 150 Once drilled block can sawed apart carefully along 741 line /32 guide hole blocks will bushed needed removable piece K&S %2-in OD brass tubing As shown jig fixture drawing two blade support blocks both cham fered knife edge block touches blade block cut 34750 located section A-A cham fered edge block located hinge area should chamfered both edges touches blade along center block Drilling hinge angle Place blade prop jig drill block screwed place Using Yz-in guide hole pass drill bit back side jig block through blade Insert 346-in piece AD-in OD aluminum tubing hole drilled blade Place 342-in OD brass tubing guide hole jig block run /16-in piece music wire through aluminum tube prop blade Work everything around until blade lies flat prop jig aluminum tubing position Carefully apply single drop cyanoacrylate CyA aluminum tubing lock place Gently remove blade assembly jig build up fillet baking soda around end hinge tube Soak area CyA CyA will make baking soda rock hard excellent support surface aluminum tube hinge bushing Return blade prop jig final angle check blade should lie easily pitch blocks /16 music wire place again Repeat process other blade youre almost home free Checking hub angle Bend prop shaft 900 solder wire hub first wrapping soft copper wire reinforcement Try locate shaft close center hub possible eyeball droop angles make sure too equal relation prop shaft Replace prop blade drilling block prop jig block used checking wire hub angle Slip AD-in brass POLYl-IESHAL BREAK 0OINT JWIG LA SHIM IN S/I6 WASHOUT AT THIS POINT3/2i IGU WNG zm rn 77TN 1/16 BALSA 6-IFET WING TIPS / I/E BALSA VERT GRAIN SHEAR WEB 1/16 I/B BALSA SPAR lABI/B BALSA SPAF CAPS BIND WITH WIRE AND SOLDERI/IA DIA MUSIC WIRE - \W WHEEL RETAINER BRASS WASHER PAl TGNSION SPRING IA6 ID BB THRUST WASHER 85/4FAI 1/16 ID SHAFT BUSHING STOP SCREWNOSEBLOCK PROM LAMINATED CROSS-GRAINED BALSA I/IAMW-D PLACES 1/4 HO WOOD PLUG NOSE PLUG DETAIL 1/SD PLY SJPPORT RING PINE SPLICE BRACE 0I5345 bushing guide hole end hub wire end brass bushing Both drooped ends hub wire should correct angle indicated following simultaneous readings A The middle portion hub wire should parallel blade centerline shown prop jig baseboard B The prop shaft should per pendicular baseboard both side view end view Use triangle check Tweak shaft wire hub wire needed get perfect alignment Complete nose assembly lami nating nose block cross-grained sheet balsa Trim spruce basswood plug fits snugly ply reinforcing ring Note nose plug has section removed glued fuselage proper indexing key -in OD hard aluminum rear motor anchor tube dethermalizer DT snuffer tube lower DT anchor dowel -in sheet alumi num winding hook last items 62 Model Aviation /7 L16 BALSA DIAGONAL RIF Ijetnermalizer setup very simpie anti rellawe ue juss nuok br both popping up holding down aluminum snuffer tube flared easy insertion fuse put FROI 1/16 BALSA SHEET MOTOR TUBE-ROLL 1/16 4 36 BALS COVER WITH 6 OZ FIBERGLASS CLOTH Full-Size Plans. Page 170 /B SO BALSA [FADING EDGE I/IA BAU WING 8115 BID7-K zz zi= i I/BSO BALSA LE 1/32 BALSA HOOKPILL BALSA TUBE 1/32 PLY SUPPORT II I/B BALSA VERT DRAIN SHEAR WEBS4BAYSI S/3DBALSA RIBS I/B HARD ALUMINUM WINDING HOOK 3/32 1/4 BALSA TE INE SPLICE BRACESPRUCE ________________RUNNERS LS DOWELS TEST FOR LOCATING1/16 BALSAI/IA BALSA AND CGSHEETSHEET ~JFB7/SECTION B-B / KKIF L-B WING MOUNT I/IA BALSA SHEET TOP SIDES- 1/8 DOWEL HOLG DOWNS 13 REODI 1/16s I/B SPRUCE TOP RUNNERS SEE SECTION B-B 1/32 BALSA ____I/IA I/A BALSASHEET SPARS I/IAs3/IA -BALSA SPARSTAB RIB1/32 BALSA CAPSSHEET STAB DIAGONAL RIB I/IA I/B SHEETWING RIB BALSAI/IA BALSAU IA BALSA SHEET 1/2 BALSA TAPERED WING DIAGONAL RIB TBAILING EDGE STABILIZER WING RIB PATTERNS 4 PINE OR FIR BLOCK PINE OR FIR 192 3PLACES t/ A-A I5o____ BLADE IiIjISPRUCE LOC ____________________CHECKING JIG ~THRUST--BSNDING ___________________JFOR WIRE HUB BLADE ANGLE 3475 741 195295470310.0 25951-IDRI LL BLOCK BLADES -- oPROP CONSTRUCTION 070-IDETAIL 495 513I959___________ 24430NOT TO SCALE PROP BLADE PROP BLADESVIEW OF FWD FACE SAW OUTLINE FROM 3/4 MED BALSA MARK DIMENSIONS GIVEN BACK FROM FWD FACE B DRAW SMOOTH CURVE THRU POINTS CARVE AWAY FROM BACK OF BLOCK CROSSED HATCHED AREA IN SKETCH AT RIGHT CARVE FWD FACE TO AIRFOIL SECTION SHOWN I/IA SOFT BALSA STAB TIPS WING CONSTRUCTION SEQUENCE PIN DOWN LEADING EDGE TRAILING EDGE SHIM FRONT OP TRAILING EDGE 2GLUE IN STRAIGHT RIBS UPPER SPAR CAP 3 REMOVE FROM BENCH IA APPLY LOWER SPAR CAP 4 RETURN TO BENCH B SHIM IN TIP WASHOUT S INSTALL DIAGONAL RIBS FOLLOWED BY SPARS 25 WING DIHEDRAL PLAN I/B PLY SCAWP______________________________ AS SHOWN DIHEDRAL BRACE I/IA PLY SCARF ENDS POLYHEDRAL BRACE I/B SO BALSA I/IA I/B020 COPPER WIRE BALSA RIBS I/IA PLYWOODI/3D GRAIN BALSA BLANK FOR TAILBOOM / S/B BALSA ROD STAB FORM ---------- STRIP U I/3D PLY FIN SUPPORTVIA PLY RING TAB PLATPORMEUCIDENCE FUSELAGE SIDE VIEW MS _____- I/B DOWEL EPOSY I/B SOLOWER 0/TANCHOR / BALSA TUB ESTAKE Urn. REAR MOTOR ANCHOR 1/4 OD HARD ALUMI/IA BALSAD/T SNUFFER 250 50 IN MULVIHILL TUBE 175 LONGBULKHEAD1/4 ALUM TUBE FLARE ONE ENDI/IA BALSA BY JIM OREILLY LARRY KRIJSEBULKHEAD added made ready test flying Add braided fishing line turbulators both wing prop turbulator should added atop front stringer wing approximately 10% aft leading edge prop Both turbulators may simply doped place Flight trimming Balance plane rubber motor installed point shown relation wing chord sliding wing mount fore aft correct balance has achieved wing mount glued place Pack up stabilizer approximate incidence blocks shown plans Set up plane follows flight pattern climb right glide left 1 Be sure wing tip washout equal both panels No other wing warps required 2 Tilt left stab tip high viewed rear Start stab tilted approximately half high left main wing panel glide circle Continued page 157 March 1 987 63 L TRACING RY JOF il prop mechanism shows wirewrapped Solder joint between prop shaft wire hub Note baking soda/CyAfilletaround hinge tube prop blade removable wire keeper holding blade hub Plan text detail things NOWLOWEST PRICES ON NI-CAD BATTERIES SANYO AA CELL Made Japan 500MAH178 7 SANYO FLAT-PACK W/WIRE 6OV-1200MAH1714 13 SANYO C CELL 600MAH. 328 2 SANYO SUB-C STICK 36V-1200MAH 1000 8 SANYO Tx-PACK W/WIRE 96V-500MAH1422 14 SAFT NAtO-BOX HUMP W/PLUG 72V-12OIIMAH2040 3 SANYO SUB-C 1200MAH3288 SANYO RX-PACK W/WIRE 6OV-4SOMAH111415 SAFT RACE-PACK WPLUG 7 2V-1200MAH1942 4 SANYO HUMP-PACK W/PLUGt4V-1200MAH238210 SAFT 0 CELL Made Prance 4000MAH6B616 SAFT TX-PACK 96V-500MAH 1342 5 SANYO HUMP-PACK W/PLUG 72V-1200MAH 2040 11 SAFT AF CELL 800MAH342 17 SAPT tX-PACK 4BV-S8OMAH686 6 SANYO RACE-PACK W/PLUG 72V-1200MAH2000 12 SAFT AA CELL SOOMAM164 18 GE/OS FLAT RX-PACK 6OV/48V-25OMAH686 I1 DEALER DISCOUNTS AVAILABLE MINIMUM ORDER $200 I DEVELOPMENT CO lIui PO BOX 2406 ERTON CA 92633 ~#21 3 690-2019 879-3266 Tu besta kelO Reilly Continued page 63 too tight reduce tilt too open wandering increase tilt 1/32 time 3 The rudder tab should offset left required achieve glide circle about 20 25 sec calm air 4 Offset nose block approxi mately 20 30 right thrust 30 50 downthrust 5 Key wing stab maintain consistent trim Hand-glide ship few times make sure wont anything ridiculous begin powered flightsgently incre mentally Start enough winds motor plane have power flight its ownbut winds mishap will bring destruction Lots time spent building plane demands lots time practice get flying well The desired flight path continuous vertical spiral right accompanied decreasing climb angle motor torque lessens time prop folds plane should leveled out transi tion smoothly right-hand power Remember 40 Wing 15 25 Engines Dealers & Distributors Welcomed Phone 703 273-9593 INE MODELS INC P0 Box 2136 Fairtan Vrrgpnre 22031 U S pattern left-hand glide Any wav ering discontinuity spiral climb right may indicate need center gravity CG change thrust change two problems may occur Problem plane tries start wing- over best Control Line tradition about eight 10 seconds full-power flight Solution No 1 wingover seems fairly constant speed try reducing right thrust just bit Solution No 2 plane slows down just before commencing wingover CG may too far aft Try moving wing again Recheck readjust glide wing moved Problem plane shows tendency spiral glide encountering strong thermal activity Solution Reduce rudder tab setting bit open up glide turn The model flies 28 oz -in FAI rubber made up 12-strand motor giving up weight model just over 7 oz Below table suggested component weights Wing161 oz Fuselage160 oz Prop assembly59 oz Stabilizer34 oz Winding hook08 oz Airframe weight422 oz Rubber280 oz Total weight702 oz The model could built lighter weights midday thermal rider theres little incentive difficult enough dethermalize strong lift already 1985 Ft Worth Planes- men Labor Day Contest TS OMT worrisome flight during drifted around about 6 mm tail popped upand no apparent loss altitude If choose build TS OMT Jim OReilly would happy correspond about design Address Jim OReilly 4760 N Battin Wichita KS 67220 Given its long lineage success hands OReilly clan certainly worthy ship consider Mulvihill entry next contest season ponding advertisers mention read about ModelAviation March 1987 157 p Classic R/C Scale E ~GREAT LAKE DO YOU HATE TO INSTALL HINGES st exciting product introduced RIO Field * Reflects its name easy hinges install * A Single Slot Few Drops C/A Glue Gouging Pinning Hinge Pins worry about * Dont let small size fool theyre Incredibly Strong * Virtually Indestructible Designed 1/2 Thru Giant Scale * Demonstrated major RC Model Shows * Available Hobby Dealer 24 EASY HlNs $295 NPacnfic SE Suite DSan Marcos Ca 92069
Edition: Model Aviation - 1987/03
Page Numbers: 60, 61, 62, 63, 157
TUK/W design around doing well flown known Unli bber fi Jim WHETHER YOURE BETTING money marbles chalk blood lines count youre looking winner Jim OReillys Tubestake OMT can trace its lineage back decade what Category II Unlimited design literally flown entire OReilly family design evolved original 245 sq Tubestake published Flying Mod els 1975 through geodetic 300 sq version improved torsional strength 1979 Flying Models model presented TS OMT has creased wingspan warp-resistant Union Jack construction new carved prop featuring less blade area improved blade angle distribution plane now carries 250 sq wing area aloft nominal airframe weight 422 oz powered strands -in rubber FAI Model Supplies High placings Nationals competition late 1 970s right up present point designs continued refinement success Fuselage construction Tubestake OMT like its predecessors employs rolled sheet balsa motor tube Use adequately wide unspliced sheet 6 balsa possible cut precisely 4 x 36 inwith edges vertical corners square Coat side fuselage blank three four heavy coats full-strength clear dope After dope dries wet opposite side blank water will immediately begin curl can wrapped around form such piece pipe old fluorescent light tube taped place until dries After blank completely dryat least 24 hours remove form carefully squeeze edges together cylindrical shape Beginning end blank moving other use Super Jet glue seam best technique squeeze inch seam together time apply Super Jet sparingly let set up move next inch Go slowly will rewarded nearly perfect cylinder Should slightly out round ply reinforcing rings nose plug will help round out nicely Form two 1/32 ply rings same manner motor tube insert shown plans motor tube should covered single layer fiberglass cloth 60 75 oz per sq yard overlapped about half inch Sand tube carefully remove bumps excessive resin cover fiberglass layer tissue sake appearance tail boom blank wrapped around 60 Model Aviation version iners Top In its glide path Tubestake prac tically level horizon Properly trimmed model will make complete glide circle 20 25 seconds has good airspeed very low sink rate Above Jim OReilly sends Tubestake aloft another flight has steep spiral climb right prop folds goes right glide turn bobble tapered form same manner motor tube blank seam similarly glued After boom formed can covered single layer tissue Pre dope boom prior covering Attach tissue dope along edge wrap around boom attach other edge Dope down strip approximately -in wide either end boom watershrink After tissue dries stick down over brushing thinner soak through soften dope underneath Add couple coats dope good measure Construct wing mount shown plans can custom-fitted fuselage wrapping strip fine sand paper around motor tube sanding away tube becomes sort rasp round out bottom wing mount fit perfect cover mount tissue dope set aside until later Flying surfaces Stack-saw ribs both wing stabilizer re quired thicknesses wood Pin down leading edge LE trailing edge TE wing packing up front TE conform undercamber airfoil Glue non-diagonal ribs upper spar cap time Omit ribs dihedral polyhedral joints turbulator stringers now Remove wing building board add lower spar cap Re-pin wing panels being careful shim needed Y16-in washout wing tip Install diagonal ribs except immediately adjacent dihedral polyhedral joints along top stringers should glued place after dihedral polyhedral joints locked respective angles dihedral view shown plan per tradition dihedral polyhedral gussets actually set needed angles usual propping up measuring three gussets cut ac cording plan slipped between spars center joint will neces sary cut out rib sections between spar caps allow passage -in ply gusset joint should test-fitted trimmed needed until everything fits close perfect possible Shear webs vertical-grain -in balsa should set between spar caps main center panels Outboard polyhedral gusset single /16-in vertical shear web will add sufficient flex resistance tip panels stabilizer built essentially same wing same sequential stepsexcept dihedral shear webs fin construction selfexplanatory completed flying sur faces should carefully sanded pre pared covering Japanese tissue preferred covering material tissue strong shrinking tendencies such Peck-Polymers used very careful shrinking processparticularly fin stabilizer best shrinking results can using rubbing alcohol isopropyl misted onto surfaces atomizer rather water As precautionary measure well wait until fin glued tail boom before fin covering shrunk After fin glued place install i6 ply stab platform aligning relation fin though stab will require some tilt glide circle youre prob ably better off line up stab mount perpendicular fin pack up stab needed later flight trimming process Carving prop propeller very soul TS OMT incorporating Eugene Larrabees ideas blade angle area distribution less total blade area intent improve overall propeller efficiency Although idea carving assembling prop weighty average modeler can handled quite methodically following sequence Blades Saw two identical blanks same -in medium balsa stock weight density close identical possible Mark edges blanks indicated dimensions shown plan measuring carefully March 1987 61 Jim begins cranking turns model held stooge No winding tube wind ing rod used because fiberglass-wrapped motortube strong enough totake blown rubber motor damage Its handy have bother contraptions Nose plug pulled outtodisplaythe prop shaft sheetaluminumwinding hook Notethe small rubberband just behind winding hook keeps 12 motor strands together back surface have selected front face blank Draw smooth curved line through series points shown small isometric view plan carve away back side blank down line have drawn Carve slight undercamber shown sand back blade final contour front face blade can now carved airfoil section plan Final-sand blade preparation doping Use enough coats dope cause blades have definite sheen Hub shaft hub shaft wires bent /16 music wire Omit final 900 bend prop shaft until after inserted /16-in ID FAI shaft bushing thrust washer tension spring Bend wire hub closely possible pattern plan Twist freehanded torsional droop hub ends per end view Jig Construct prop jig detailed plan glued together except two jig blocks hinge area interchangeable drilling hinge hole blades other checking hub angle jig blocks made single piece 1 x 2-in pine fir drilled /32 bit set precisely 150 Once drilled block can sawed apart carefully along 741 line /32 guide hole blocks will bushed needed removable piece K&S %2-in OD brass tubing As shown jig fixture drawing two blade support blocks both cham fered knife edge block touches blade block cut 34750 located section A-A cham fered edge block located hinge area should chamfered both edges touches blade along center block Drilling hinge angle Place blade prop jig drill block screwed place Using Yz-in guide hole pass drill bit back side jig block through blade Insert 346-in piece AD-in OD aluminum tubing hole drilled blade Place 342-in OD brass tubing guide hole jig block run /16-in piece music wire through aluminum tube prop blade Work everything around until blade lies flat prop jig aluminum tubing position Carefully apply single drop cyanoacrylate CyA aluminum tubing lock place Gently remove blade assembly jig build up fillet baking soda around end hinge tube Soak area CyA CyA will make baking soda rock hard excellent support surface aluminum tube hinge bushing Return blade prop jig final angle check blade should lie easily pitch blocks /16 music wire place again Repeat process other blade youre almost home free Checking hub angle Bend prop shaft 900 solder wire hub first wrapping soft copper wire reinforcement Try locate shaft close center hub possible eyeball droop angles make sure too equal relation prop shaft Replace prop blade drilling block prop jig block used checking wire hub angle Slip AD-in brass POLYl-IESHAL BREAK 0OINT JWIG LA SHIM IN S/I6 WASHOUT AT THIS POINT3/2i IGU WNG zm rn 77TN 1/16 BALSA 6-IFET WING TIPS / I/E BALSA VERT GRAIN SHEAR WEB 1/16 I/B BALSA SPAR lABI/B BALSA SPAF CAPS BIND WITH WIRE AND SOLDERI/IA DIA MUSIC WIRE - \W WHEEL RETAINER BRASS WASHER PAl TGNSION SPRING IA6 ID BB THRUST WASHER 85/4FAI 1/16 ID SHAFT BUSHING STOP SCREWNOSEBLOCK PROM LAMINATED CROSS-GRAINED BALSA I/IAMW-D PLACES 1/4 HO WOOD PLUG NOSE PLUG DETAIL 1/SD PLY SJPPORT RING PINE SPLICE BRACE 0I5345 bushing guide hole end hub wire end brass bushing Both drooped ends hub wire should correct angle indicated following simultaneous readings A The middle portion hub wire should parallel blade centerline shown prop jig baseboard B The prop shaft should per pendicular baseboard both side view end view Use triangle check Tweak shaft wire hub wire needed get perfect alignment Complete nose assembly lami nating nose block cross-grained sheet balsa Trim spruce basswood plug fits snugly ply reinforcing ring Note nose plug has section removed glued fuselage proper indexing key -in OD hard aluminum rear motor anchor tube dethermalizer DT snuffer tube lower DT anchor dowel -in sheet alumi num winding hook last items 62 Model Aviation /7 L16 BALSA DIAGONAL RIF Ijetnermalizer setup very simpie anti rellawe ue juss nuok br both popping up holding down aluminum snuffer tube flared easy insertion fuse put FROI 1/16 BALSA SHEET MOTOR TUBE-ROLL 1/16 4 36 BALS COVER WITH 6 OZ FIBERGLASS CLOTH Full-Size Plans. Page 170 /B SO BALSA [FADING EDGE I/IA BAU WING 8115 BID7-K zz zi= i I/BSO BALSA LE 1/32 BALSA HOOKPILL BALSA TUBE 1/32 PLY SUPPORT II I/B BALSA VERT DRAIN SHEAR WEBS4BAYSI S/3DBALSA RIBS I/B HARD ALUMINUM WINDING HOOK 3/32 1/4 BALSA TE INE SPLICE BRACESPRUCE ________________RUNNERS LS DOWELS TEST FOR LOCATING1/16 BALSAI/IA BALSA AND CGSHEETSHEET ~JFB7/SECTION B-B / KKIF L-B WING MOUNT I/IA BALSA SHEET TOP SIDES- 1/8 DOWEL HOLG DOWNS 13 REODI 1/16s I/B SPRUCE TOP RUNNERS SEE SECTION B-B 1/32 BALSA ____I/IA I/A BALSASHEET SPARS I/IAs3/IA -BALSA SPARSTAB RIB1/32 BALSA CAPSSHEET STAB DIAGONAL RIB I/IA I/B SHEETWING RIB BALSAI/IA BALSAU IA BALSA SHEET 1/2 BALSA TAPERED WING DIAGONAL RIB TBAILING EDGE STABILIZER WING RIB PATTERNS 4 PINE OR FIR BLOCK PINE OR FIR 192 3PLACES t/ A-A I5o____ BLADE IiIjISPRUCE LOC ____________________CHECKING JIG ~THRUST--BSNDING ___________________JFOR WIRE HUB BLADE ANGLE 3475 741 195295470310.0 25951-IDRI LL BLOCK BLADES -- oPROP CONSTRUCTION 070-IDETAIL 495 513I959___________ 24430NOT TO SCALE PROP BLADE PROP BLADESVIEW OF FWD FACE SAW OUTLINE FROM 3/4 MED BALSA MARK DIMENSIONS GIVEN BACK FROM FWD FACE B DRAW SMOOTH CURVE THRU POINTS CARVE AWAY FROM BACK OF BLOCK CROSSED HATCHED AREA IN SKETCH AT RIGHT CARVE FWD FACE TO AIRFOIL SECTION SHOWN I/IA SOFT BALSA STAB TIPS WING CONSTRUCTION SEQUENCE PIN DOWN LEADING EDGE TRAILING EDGE SHIM FRONT OP TRAILING EDGE 2GLUE IN STRAIGHT RIBS UPPER SPAR CAP 3 REMOVE FROM BENCH IA APPLY LOWER SPAR CAP 4 RETURN TO BENCH B SHIM IN TIP WASHOUT S INSTALL DIAGONAL RIBS FOLLOWED BY SPARS 25 WING DIHEDRAL PLAN I/B PLY SCAWP______________________________ AS SHOWN DIHEDRAL BRACE I/IA PLY SCARF ENDS POLYHEDRAL BRACE I/B SO BALSA I/IA I/B020 COPPER WIRE BALSA RIBS I/IA PLYWOODI/3D GRAIN BALSA BLANK FOR TAILBOOM / S/B BALSA ROD STAB FORM ---------- STRIP U I/3D PLY FIN SUPPORTVIA PLY RING TAB PLATPORMEUCIDENCE FUSELAGE SIDE VIEW MS _____- I/B DOWEL EPOSY I/B SOLOWER 0/TANCHOR / BALSA TUB ESTAKE Urn. REAR MOTOR ANCHOR 1/4 OD HARD ALUMI/IA BALSAD/T SNUFFER 250 50 IN MULVIHILL TUBE 175 LONGBULKHEAD1/4 ALUM TUBE FLARE ONE ENDI/IA BALSA BY JIM OREILLY LARRY KRIJSEBULKHEAD added made ready test flying Add braided fishing line turbulators both wing prop turbulator should added atop front stringer wing approximately 10% aft leading edge prop Both turbulators may simply doped place Flight trimming Balance plane rubber motor installed point shown relation wing chord sliding wing mount fore aft correct balance has achieved wing mount glued place Pack up stabilizer approximate incidence blocks shown plans Set up plane follows flight pattern climb right glide left 1 Be sure wing tip washout equal both panels No other wing warps required 2 Tilt left stab tip high viewed rear Start stab tilted approximately half high left main wing panel glide circle Continued page 157 March 1 987 63 L TRACING RY JOF il prop mechanism shows wirewrapped Solder joint between prop shaft wire hub Note baking soda/CyAfilletaround hinge tube prop blade removable wire keeper holding blade hub Plan text detail things NOWLOWEST PRICES ON NI-CAD BATTERIES SANYO AA CELL Made Japan 500MAH178 7 SANYO FLAT-PACK W/WIRE 6OV-1200MAH1714 13 SANYO C CELL 600MAH. 328 2 SANYO SUB-C STICK 36V-1200MAH 1000 8 SANYO Tx-PACK W/WIRE 96V-500MAH1422 14 SAFT NAtO-BOX HUMP W/PLUG 72V-12OIIMAH2040 3 SANYO SUB-C 1200MAH3288 SANYO RX-PACK W/WIRE 6OV-4SOMAH111415 SAFT RACE-PACK WPLUG 7 2V-1200MAH1942 4 SANYO HUMP-PACK W/PLUGt4V-1200MAH238210 SAFT 0 CELL Made Prance 4000MAH6B616 SAFT TX-PACK 96V-500MAH 1342 5 SANYO HUMP-PACK W/PLUG 72V-1200MAH 2040 11 SAFT AF CELL 800MAH342 17 SAPT tX-PACK 4BV-S8OMAH686 6 SANYO RACE-PACK W/PLUG 72V-1200MAH2000 12 SAFT AA CELL SOOMAM164 18 GE/OS FLAT RX-PACK 6OV/48V-25OMAH686 I1 DEALER DISCOUNTS AVAILABLE MINIMUM ORDER $200 I DEVELOPMENT CO lIui PO BOX 2406 ERTON CA 92633 ~#21 3 690-2019 879-3266 Tu besta kelO Reilly Continued page 63 too tight reduce tilt too open wandering increase tilt 1/32 time 3 The rudder tab should offset left required achieve glide circle about 20 25 sec calm air 4 Offset nose block approxi mately 20 30 right thrust 30 50 downthrust 5 Key wing stab maintain consistent trim Hand-glide ship few times make sure wont anything ridiculous begin powered flightsgently incre mentally Start enough winds motor plane have power flight its ownbut winds mishap will bring destruction Lots time spent building plane demands lots time practice get flying well The desired flight path continuous vertical spiral right accompanied decreasing climb angle motor torque lessens time prop folds plane should leveled out transi tion smoothly right-hand power Remember 40 Wing 15 25 Engines Dealers & Distributors Welcomed Phone 703 273-9593 INE MODELS INC P0 Box 2136 Fairtan Vrrgpnre 22031 U S pattern left-hand glide Any wav ering discontinuity spiral climb right may indicate need center gravity CG change thrust change two problems may occur Problem plane tries start wing- over best Control Line tradition about eight 10 seconds full-power flight Solution No 1 wingover seems fairly constant speed try reducing right thrust just bit Solution No 2 plane slows down just before commencing wingover CG may too far aft Try moving wing again Recheck readjust glide wing moved Problem plane shows tendency spiral glide encountering strong thermal activity Solution Reduce rudder tab setting bit open up glide turn The model flies 28 oz -in FAI rubber made up 12-strand motor giving up weight model just over 7 oz Below table suggested component weights Wing161 oz Fuselage160 oz Prop assembly59 oz Stabilizer34 oz Winding hook08 oz Airframe weight422 oz Rubber280 oz Total weight702 oz The model could built lighter weights midday thermal rider theres little incentive difficult enough dethermalize strong lift already 1985 Ft Worth Planes- men Labor Day Contest TS OMT worrisome flight during drifted around about 6 mm tail popped upand no apparent loss altitude If choose build TS OMT Jim OReilly would happy correspond about design Address Jim OReilly 4760 N Battin Wichita KS 67220 Given its long lineage success hands OReilly clan certainly worthy ship consider Mulvihill entry next contest season ponding advertisers mention read about ModelAviation March 1987 157 p Classic R/C Scale E ~GREAT LAKE DO YOU HATE TO INSTALL HINGES st exciting product introduced RIO Field * Reflects its name easy hinges install * A Single Slot Few Drops C/A Glue Gouging Pinning Hinge Pins worry about * Dont let small size fool theyre Incredibly Strong * Virtually Indestructible Designed 1/2 Thru Giant Scale * Demonstrated major RC Model Shows * Available Hobby Dealer 24 EASY HlNs $295 NPacnfic SE Suite DSan Marcos Ca 92069