NO OCR TEXT Bill Noona 01 hin master Free Flight Scale shares us another delightful rubberpowered creations -in equals 1-ft scale has some aerodynamic gymnastics allows biplane configuration act high-wing mono plane insofar bal ance concerned THE SOPWITH DOLPHIN contrary pop ular belief excellent aircraft Only after installation 300-hp Hispano-Suiza engine lieu unreliable 200-hp version did Dolphin prove itself combat weapon Un fortunately came closing months 1918 too late airplane demonstrate its full capabilities Its performance superior other aircraft service November 1918 Dolphin configuration suggests its designer Herbert Smith hoped achieve high degree maneuverability repeating lessons learned famous Camel close grouping engine armament fuel tanks pilot compact mass Along Smith took somewhat unorthodox design route assure pilot optimum upper visibility primary tactical advantage aerial combat pilot sat framed middle opening center top wing positioned low above fuselage center gravity CG lift arrangements dictated lower wing ahead upper creating negative stagger Dolphin design distinction Sopwith Dolphin provides basis interesting modeling subject possesses good proportions well-documented photo graphically like incorporate details drawback might say short nose can detrimental flight duration rubber models requires excessive ballast bring CG its correct position decided try idea alleviate shortcoming look Dolphin parasol monoplane wing just about perfect location generous area top wing quite adequate terms potential lift give bottom wing streamlined non-lifting airfoil will just go along ride doing allow Ah gorgeous lines biplane keep model light good flying covered white tissue colored dye spray canfrom art supply stores Fuselage tops wing/stab olive drab cream bottoms June 1981 73 rusu uy u1 dutnur oopwiin uopnin snown Ott TO gooa aavantage view bymmetrical airfoil bottom wing doesnt show angles Surprisingly model requires 2 upthrust Author recommends Peck-Polymers propB-in dia takeoffs planned 9-in belier performance hand-launching Uses four six strands 3/16-in rubber power j FULLSIZE PLANS AVAILABLE. SEE PAGE 140 sd4a T1ckyr9p e -- wi#q spars s/nt motngt 0 red flf hwv I 4nunaer~spvm X zpc& basswovd rLi6e1-anc4or top wing t7t-4 b4sa F Lass wooa AJICS aAn hustrd ttP nik hn stzzb cross -sa - spars-4 sq hadAaLi-a Kn whar top wfn5 black bottom Wng SOPWITH DOLPHIN Flying ScaleRubber Power DESIGNED AND DRAWN eYuffPOOnaw smsntittai4enni wsti tnk CG related upper rearward wing works remarkably well model needs no additional weight nose best absolutely stablewith spectacular windy weather penetration peculiar require ments need 20 upthrust Most Scale models require just opposite Dolphin easy build end result model lot character primary source information old Profile Series Number 169 squadron markings shown publication give builder choice about eight different schemes Fuselage construction Before starting con struction well protect plans surplus cement overlaying wax paper Saran Wrap Lay 3/32 sq medium balsa longerons over side view pin through balsa Carefully cut set 1 / 16 sq uprights diagonals uprights either end longerons 3/32 sq Make right left side manner keeping 1/16 material inside 3/32 longerons makes better looking covering job later After cement thoroughly dry remove sides fit widest cross-members 1/16 sq cockpit area After cementing pinch nose tail Note nose has slight taper Cement tail post add nose cross pieces holding together spring clips lightweight adjustable clamps Fill other cross 74 Model Aviation top Wbt9 ctgegch- sft alia bottom strtnyr /iCalsonsfrrmtrs- a1a s HpthruM whqtrkhrr6 naneT6IIsoo - iy&britof $41n tbE5 uncoverea srucsure Deaulmiul viuu arge enough wood sizes arent ultra-delicate Interplane struts cocktail straws Pilot figure machine guns exhaust stacks turneu wrleels enhance models looks dont weigh much can added fairly easy rear fe5 jsJree travef LANDING GEAR ARRANGEMESIr pieces Add 1/16 sheet lower wing root filler also filler pieces accommodate rubber anchor tubing See position plans Cut turtleback formers light 1/16 sheet balsa Cement place file stringer notches small file folded sandpaper Stringers may sliced 3/32 x 1/32 hard balsa similar size basswood available model railroad shops basswood has advantage sagging between formers Note stringers run bulkhead 2 4 i-ply bristol card stock covering turtleback immediately behind cockpit simulate metal covering found real machine sculptured cowling surrounding cockpit engine portion carved soft balsa block hollowed out about -in wall thickness component requires some care fit accurately has drilled accept bamboo cabane struts gun cavities circular vent holes opening immediately below valve cover projection may cut painted flat black later sides nose filled 1/16 sheet balsa bottom chin is soft balsa slightly rounded forward landing gear struts Cut nose block hard balsa block laminate 4 sheet balsa Fit 1/16-in inside diameter ID aluminum tubing nylon thrust button prop shaft should 045-in wire Incor porate 2 upthrust mentioned earlier Exhaust pipes may made soda straws fashioned balsa Valve cover fairings balsa two Vickers guns made wrapping paper around dowel cementing seam After removing dowel fill front end small balsa disc add short muzzle details should given least two coats sanding sealer before final coloring applied landing gear bent 1/32-in wire See sketch general arrangement spreader bar soldered crotch Vs Note front legs cemented 1/16 sheet cross piece inside fuselage rear legs free travel through holes provided fuselage bottom allows spring wire absorb impact shock transmitting stress structural members Fill fuselage bottom 1/20 sheet balsa cockpit area Add streamlined balsa fairings landing gear legs axle Finished models wings removed Rigging 2lb.test nylon fishing leadernot adds appearance also provides ri gidity planning Continuous piece does set June 1981 75 N 7 harhoodw4 Lait6oo sfra1 INTERPLANE STRUT MOUNTS CENERAL ARRANGEA4ENT CAANE STRUTS Turn wheels medium balsa using small lathe have chucking rough wheel disc drill motor may done cementing -in hardwood dowel about 1 long center balsa disc becoming piece placed chuck After contouring tire wheel various grades sandpaper cut dowel off flush wheel sides drill 1/32-in hole axle tail skid fashioned bamboo sliver set scrap balsa block cemented tail post model made wings removable retained rubberbands absorb impact shock weight penalty very slight four wing panels provided 1/16-in ID alu minum tubing cemented root ribs running parallel spar sides tubes mate similar tubing cemented transversely across fuselage two supported cabane struts two across cockpit bottom lower wings Hardwood dowel 1/16-in dia about 1 long forced eight tube ends forming plug-in capability case broken dowels may easily replaced pushing broken parts out tubing Allow dihedral cementing tubing place Wing construction Cut 32 ribs 1/20 medium balsa 16 top wing 16 bottom streamlined wing Pin batch together sand carefully assure uniformity airfoil accuracy Scribe spar locations sharp soft pencil making sure 900 rib chord Carefully file notches receive four 1/16 sq spars ribs vulnerable breakage little web separates top spar bottom After removing pins application ofcyano acrylate glue such Hot Stufi web individual ribs greatly strengthens balsa Assemble ribs over plans fitting two lower spars Carefully force top spars place Position leading trailing edges place Check assembly alignment apply cyanoacrylate glue joints doesnt make difference wings built first sure root ribs slightly angled lower panels accommodate dihedral four wing panels have hard balsa filler pieces cemented between top bottom spars root rib second rib contributes strength wing vulnerable also forms base aluminum tubing plug-in wing tips made laminating two pieces 1/32 x wood has soaked hot water around thick -in card board balsa forms have cut tip contour Wax edges form common household candle childs crayon before applying white glue basswood held place overnight pins white glue tends seep out between laminations waxing facilitates re moval tip part form After tip thoroughly dry trim shown cement place Pinch top bottom 1/16 sq spars butt tips Apply cyano acrylate glue Cement 16 interplane strut bases place noting should position top surface bottom wing bottom surface top wing got Later after covering has applied drilled accept -in balsa dowels about -in long become straw interplane strut mounts Carefully contour leading trailing edges conform airfoil fairing basswood tips frame members should finished 400-grit sandpaper Tail surfaces stabilizer constructed laying hard 1/16 sq balsa over plans spars ribs located Position /16 x a leading trailing edges place Apply cyanoacrylate glue joints 1/16-in ribs built up applying 1/16 x 3/32 pieces glued 1/16 edge running full chord leading trailing edge pieces trimmed give lifting airfoil also strengthen framework structure abuts spar Tips laminated same manner wing tips See typical stabilizer cross section plans Build rudder same way stab make airfoil symmetrical Finishing Covering Dolphin easy requir ing comment sure apply adhesive undercamber top wing favor using diluted white glue adhere white tissue frame may prefer clear dope something else Use whatever provides best results color scheme Dolphin followed prevailing British practice 1918olive drab fuselage top surfaces wings stab cream undersides entire aircraft some Dolphins metal portion turtleback fuselage forward cabane struts painted light gray wheels Identifying letters numerals white excep tion derside lower right wing black rudder striped red white blue blue stripe being closest fin After covering model shrink tissue fine spray rubbing alcohol evaporates much rapidly water minimizes possibility loosened glue joints colored model Spray Mark aerosol dye available through better stocked art supply stores has advantage being transparent very light has excellent resist ance fading Its main shortcoming water-soluble requires least two coats clear dope effectively seal areas model roundels shown masked frisket thin trans lucent vinyl-like material adhesive back also available through art supply stores roundels well rudder stripes cut colored tissue doped onto white tissue interplane struts made strong light cocktail straws painted gray fit down over little balsa dowels described earlier Because straws polyethelene plastic resist glues cements helps take small rat-tailed file roughen insides straw before usingpreferably epoxy Flatten slightly streamlined section Although looks somewhat complex rigging really quite simple Thread 2-lb-test nylon fishing leader small needle proceed stitch rigging place piercing straw strut bases care planning continuous piece thread can used set wings rigging lends character model contributes great deal unifying wing assemblies use removable wing feature sure install small hooks leading trailing portions both top bottom wings rubberbands can hold wings place stretch between top panels approximately spars under cockpit lower wings Finish detailing model ink-ruled lines ailerons rudder stabilizer separations Flying intend let Dolphin take off ground ROG use 8-in Peck-Polymers prop 9-in gives significantly better per formance Power model four lubed strands 3/16-in rubber pleasant notrauma flights Six strands really gets up makes adjustment little critical Rubber should measure about twice length distance aluminum tube nose should able pack least 1600 turns four-strand motor Dolphin few models have flown feel absolute confidence what going release predictable flier structure able take lot abuse looking World War subject isnt often modeled Sopwith Dolphin has lot offer Safe Flying No Accident 76 Model Aviation Author launches model early morning sortie Noonan says few models has flown feels absolute confidence what going doa predictable flier rugged picture David Noonan others author
Edition: Model Aviation - 1981/06
Page Numbers: 72, 73, 74, 75, 76
NO OCR TEXT Bill Noona 01 hin master Free Flight Scale shares us another delightful rubberpowered creations -in equals 1-ft scale has some aerodynamic gymnastics allows biplane configuration act high-wing mono plane insofar bal ance concerned THE SOPWITH DOLPHIN contrary pop ular belief excellent aircraft Only after installation 300-hp Hispano-Suiza engine lieu unreliable 200-hp version did Dolphin prove itself combat weapon Un fortunately came closing months 1918 too late airplane demonstrate its full capabilities Its performance superior other aircraft service November 1918 Dolphin configuration suggests its designer Herbert Smith hoped achieve high degree maneuverability repeating lessons learned famous Camel close grouping engine armament fuel tanks pilot compact mass Along Smith took somewhat unorthodox design route assure pilot optimum upper visibility primary tactical advantage aerial combat pilot sat framed middle opening center top wing positioned low above fuselage center gravity CG lift arrangements dictated lower wing ahead upper creating negative stagger Dolphin design distinction Sopwith Dolphin provides basis interesting modeling subject possesses good proportions well-documented photo graphically like incorporate details drawback might say short nose can detrimental flight duration rubber models requires excessive ballast bring CG its correct position decided try idea alleviate shortcoming look Dolphin parasol monoplane wing just about perfect location generous area top wing quite adequate terms potential lift give bottom wing streamlined non-lifting airfoil will just go along ride doing allow Ah gorgeous lines biplane keep model light good flying covered white tissue colored dye spray canfrom art supply stores Fuselage tops wing/stab olive drab cream bottoms June 1981 73 rusu uy u1 dutnur oopwiin uopnin snown Ott TO gooa aavantage view bymmetrical airfoil bottom wing doesnt show angles Surprisingly model requires 2 upthrust Author recommends Peck-Polymers propB-in dia takeoffs planned 9-in belier performance hand-launching Uses four six strands 3/16-in rubber power j FULLSIZE PLANS AVAILABLE. SEE PAGE 140 sd4a T1ckyr9p e -- wi#q spars s/nt motngt 0 red flf hwv I 4nunaer~spvm X zpc& basswovd rLi6e1-anc4or top wing t7t-4 b4sa F Lass wooa AJICS aAn hustrd ttP nik hn stzzb cross -sa - spars-4 sq hadAaLi-a Kn whar top wfn5 black bottom Wng SOPWITH DOLPHIN Flying ScaleRubber Power DESIGNED AND DRAWN eYuffPOOnaw smsntittai4enni wsti tnk CG related upper rearward wing works remarkably well model needs no additional weight nose best absolutely stablewith spectacular windy weather penetration peculiar require ments need 20 upthrust Most Scale models require just opposite Dolphin easy build end result model lot character primary source information old Profile Series Number 169 squadron markings shown publication give builder choice about eight different schemes Fuselage construction Before starting con struction well protect plans surplus cement overlaying wax paper Saran Wrap Lay 3/32 sq medium balsa longerons over side view pin through balsa Carefully cut set 1 / 16 sq uprights diagonals uprights either end longerons 3/32 sq Make right left side manner keeping 1/16 material inside 3/32 longerons makes better looking covering job later After cement thoroughly dry remove sides fit widest cross-members 1/16 sq cockpit area After cementing pinch nose tail Note nose has slight taper Cement tail post add nose cross pieces holding together spring clips lightweight adjustable clamps Fill other cross 74 Model Aviation top Wbt9 ctgegch- sft alia bottom strtnyr /iCalsonsfrrmtrs- a1a s HpthruM whqtrkhrr6 naneT6IIsoo - iy&britof $41n tbE5 uncoverea srucsure Deaulmiul viuu arge enough wood sizes arent ultra-delicate Interplane struts cocktail straws Pilot figure machine guns exhaust stacks turneu wrleels enhance models looks dont weigh much can added fairly easy rear fe5 jsJree travef LANDING GEAR ARRANGEMESIr pieces Add 1/16 sheet lower wing root filler also filler pieces accommodate rubber anchor tubing See position plans Cut turtleback formers light 1/16 sheet balsa Cement place file stringer notches small file folded sandpaper Stringers may sliced 3/32 x 1/32 hard balsa similar size basswood available model railroad shops basswood has advantage sagging between formers Note stringers run bulkhead 2 4 i-ply bristol card stock covering turtleback immediately behind cockpit simulate metal covering found real machine sculptured cowling surrounding cockpit engine portion carved soft balsa block hollowed out about -in wall thickness component requires some care fit accurately has drilled accept bamboo cabane struts gun cavities circular vent holes opening immediately below valve cover projection may cut painted flat black later sides nose filled 1/16 sheet balsa bottom chin is soft balsa slightly rounded forward landing gear struts Cut nose block hard balsa block laminate 4 sheet balsa Fit 1/16-in inside diameter ID aluminum tubing nylon thrust button prop shaft should 045-in wire Incor porate 2 upthrust mentioned earlier Exhaust pipes may made soda straws fashioned balsa Valve cover fairings balsa two Vickers guns made wrapping paper around dowel cementing seam After removing dowel fill front end small balsa disc add short muzzle details should given least two coats sanding sealer before final coloring applied landing gear bent 1/32-in wire See sketch general arrangement spreader bar soldered crotch Vs Note front legs cemented 1/16 sheet cross piece inside fuselage rear legs free travel through holes provided fuselage bottom allows spring wire absorb impact shock transmitting stress structural members Fill fuselage bottom 1/20 sheet balsa cockpit area Add streamlined balsa fairings landing gear legs axle Finished models wings removed Rigging 2lb.test nylon fishing leadernot adds appearance also provides ri gidity planning Continuous piece does set June 1981 75 N 7 harhoodw4 Lait6oo sfra1 INTERPLANE STRUT MOUNTS CENERAL ARRANGEA4ENT CAANE STRUTS Turn wheels medium balsa using small lathe have chucking rough wheel disc drill motor may done cementing -in hardwood dowel about 1 long center balsa disc becoming piece placed chuck After contouring tire wheel various grades sandpaper cut dowel off flush wheel sides drill 1/32-in hole axle tail skid fashioned bamboo sliver set scrap balsa block cemented tail post model made wings removable retained rubberbands absorb impact shock weight penalty very slight four wing panels provided 1/16-in ID alu minum tubing cemented root ribs running parallel spar sides tubes mate similar tubing cemented transversely across fuselage two supported cabane struts two across cockpit bottom lower wings Hardwood dowel 1/16-in dia about 1 long forced eight tube ends forming plug-in capability case broken dowels may easily replaced pushing broken parts out tubing Allow dihedral cementing tubing place Wing construction Cut 32 ribs 1/20 medium balsa 16 top wing 16 bottom streamlined wing Pin batch together sand carefully assure uniformity airfoil accuracy Scribe spar locations sharp soft pencil making sure 900 rib chord Carefully file notches receive four 1/16 sq spars ribs vulnerable breakage little web separates top spar bottom After removing pins application ofcyano acrylate glue such Hot Stufi web individual ribs greatly strengthens balsa Assemble ribs over plans fitting two lower spars Carefully force top spars place Position leading trailing edges place Check assembly alignment apply cyanoacrylate glue joints doesnt make difference wings built first sure root ribs slightly angled lower panels accommodate dihedral four wing panels have hard balsa filler pieces cemented between top bottom spars root rib second rib contributes strength wing vulnerable also forms base aluminum tubing plug-in wing tips made laminating two pieces 1/32 x wood has soaked hot water around thick -in card board balsa forms have cut tip contour Wax edges form common household candle childs crayon before applying white glue basswood held place overnight pins white glue tends seep out between laminations waxing facilitates re moval tip part form After tip thoroughly dry trim shown cement place Pinch top bottom 1/16 sq spars butt tips Apply cyano acrylate glue Cement 16 interplane strut bases place noting should position top surface bottom wing bottom surface top wing got Later after covering has applied drilled accept -in balsa dowels about -in long become straw interplane strut mounts Carefully contour leading trailing edges conform airfoil fairing basswood tips frame members should finished 400-grit sandpaper Tail surfaces stabilizer constructed laying hard 1/16 sq balsa over plans spars ribs located Position /16 x a leading trailing edges place Apply cyanoacrylate glue joints 1/16-in ribs built up applying 1/16 x 3/32 pieces glued 1/16 edge running full chord leading trailing edge pieces trimmed give lifting airfoil also strengthen framework structure abuts spar Tips laminated same manner wing tips See typical stabilizer cross section plans Build rudder same way stab make airfoil symmetrical Finishing Covering Dolphin easy requir ing comment sure apply adhesive undercamber top wing favor using diluted white glue adhere white tissue frame may prefer clear dope something else Use whatever provides best results color scheme Dolphin followed prevailing British practice 1918olive drab fuselage top surfaces wings stab cream undersides entire aircraft some Dolphins metal portion turtleback fuselage forward cabane struts painted light gray wheels Identifying letters numerals white excep tion derside lower right wing black rudder striped red white blue blue stripe being closest fin After covering model shrink tissue fine spray rubbing alcohol evaporates much rapidly water minimizes possibility loosened glue joints colored model Spray Mark aerosol dye available through better stocked art supply stores has advantage being transparent very light has excellent resist ance fading Its main shortcoming water-soluble requires least two coats clear dope effectively seal areas model roundels shown masked frisket thin trans lucent vinyl-like material adhesive back also available through art supply stores roundels well rudder stripes cut colored tissue doped onto white tissue interplane struts made strong light cocktail straws painted gray fit down over little balsa dowels described earlier Because straws polyethelene plastic resist glues cements helps take small rat-tailed file roughen insides straw before usingpreferably epoxy Flatten slightly streamlined section Although looks somewhat complex rigging really quite simple Thread 2-lb-test nylon fishing leader small needle proceed stitch rigging place piercing straw strut bases care planning continuous piece thread can used set wings rigging lends character model contributes great deal unifying wing assemblies use removable wing feature sure install small hooks leading trailing portions both top bottom wings rubberbands can hold wings place stretch between top panels approximately spars under cockpit lower wings Finish detailing model ink-ruled lines ailerons rudder stabilizer separations Flying intend let Dolphin take off ground ROG use 8-in Peck-Polymers prop 9-in gives significantly better per formance Power model four lubed strands 3/16-in rubber pleasant notrauma flights Six strands really gets up makes adjustment little critical Rubber should measure about twice length distance aluminum tube nose should able pack least 1600 turns four-strand motor Dolphin few models have flown feel absolute confidence what going release predictable flier structure able take lot abuse looking World War subject isnt often modeled Sopwith Dolphin has lot offer Safe Flying No Accident 76 Model Aviation Author launches model early morning sortie Noonan says few models has flown feels absolute confidence what going doa predictable flier rugged picture David Noonan others author
Edition: Model Aviation - 1981/06
Page Numbers: 72, 73, 74, 75, 76
NO OCR TEXT Bill Noona 01 hin master Free Flight Scale shares us another delightful rubberpowered creations -in equals 1-ft scale has some aerodynamic gymnastics allows biplane configuration act high-wing mono plane insofar bal ance concerned THE SOPWITH DOLPHIN contrary pop ular belief excellent aircraft Only after installation 300-hp Hispano-Suiza engine lieu unreliable 200-hp version did Dolphin prove itself combat weapon Un fortunately came closing months 1918 too late airplane demonstrate its full capabilities Its performance superior other aircraft service November 1918 Dolphin configuration suggests its designer Herbert Smith hoped achieve high degree maneuverability repeating lessons learned famous Camel close grouping engine armament fuel tanks pilot compact mass Along Smith took somewhat unorthodox design route assure pilot optimum upper visibility primary tactical advantage aerial combat pilot sat framed middle opening center top wing positioned low above fuselage center gravity CG lift arrangements dictated lower wing ahead upper creating negative stagger Dolphin design distinction Sopwith Dolphin provides basis interesting modeling subject possesses good proportions well-documented photo graphically like incorporate details drawback might say short nose can detrimental flight duration rubber models requires excessive ballast bring CG its correct position decided try idea alleviate shortcoming look Dolphin parasol monoplane wing just about perfect location generous area top wing quite adequate terms potential lift give bottom wing streamlined non-lifting airfoil will just go along ride doing allow Ah gorgeous lines biplane keep model light good flying covered white tissue colored dye spray canfrom art supply stores Fuselage tops wing/stab olive drab cream bottoms June 1981 73 rusu uy u1 dutnur oopwiin uopnin snown Ott TO gooa aavantage view bymmetrical airfoil bottom wing doesnt show angles Surprisingly model requires 2 upthrust Author recommends Peck-Polymers propB-in dia takeoffs planned 9-in belier performance hand-launching Uses four six strands 3/16-in rubber power j FULLSIZE PLANS AVAILABLE. SEE PAGE 140 sd4a T1ckyr9p e -- wi#q spars s/nt motngt 0 red flf hwv I 4nunaer~spvm X zpc& basswovd rLi6e1-anc4or top wing t7t-4 b4sa F Lass wooa AJICS aAn hustrd ttP nik hn stzzb cross -sa - spars-4 sq hadAaLi-a Kn whar top wfn5 black bottom Wng SOPWITH DOLPHIN Flying ScaleRubber Power DESIGNED AND DRAWN eYuffPOOnaw smsntittai4enni wsti tnk CG related upper rearward wing works remarkably well model needs no additional weight nose best absolutely stablewith spectacular windy weather penetration peculiar require ments need 20 upthrust Most Scale models require just opposite Dolphin easy build end result model lot character primary source information old Profile Series Number 169 squadron markings shown publication give builder choice about eight different schemes Fuselage construction Before starting con struction well protect plans surplus cement overlaying wax paper Saran Wrap Lay 3/32 sq medium balsa longerons over side view pin through balsa Carefully cut set 1 / 16 sq uprights diagonals uprights either end longerons 3/32 sq Make right left side manner keeping 1/16 material inside 3/32 longerons makes better looking covering job later After cement thoroughly dry remove sides fit widest cross-members 1/16 sq cockpit area After cementing pinch nose tail Note nose has slight taper Cement tail post add nose cross pieces holding together spring clips lightweight adjustable clamps Fill other cross 74 Model Aviation top Wbt9 ctgegch- sft alia bottom strtnyr /iCalsonsfrrmtrs- a1a s HpthruM whqtrkhrr6 naneT6IIsoo - iy&britof $41n tbE5 uncoverea srucsure Deaulmiul viuu arge enough wood sizes arent ultra-delicate Interplane struts cocktail straws Pilot figure machine guns exhaust stacks turneu wrleels enhance models looks dont weigh much can added fairly easy rear fe5 jsJree travef LANDING GEAR ARRANGEMESIr pieces Add 1/16 sheet lower wing root filler also filler pieces accommodate rubber anchor tubing See position plans Cut turtleback formers light 1/16 sheet balsa Cement place file stringer notches small file folded sandpaper Stringers may sliced 3/32 x 1/32 hard balsa similar size basswood available model railroad shops basswood has advantage sagging between formers Note stringers run bulkhead 2 4 i-ply bristol card stock covering turtleback immediately behind cockpit simulate metal covering found real machine sculptured cowling surrounding cockpit engine portion carved soft balsa block hollowed out about -in wall thickness component requires some care fit accurately has drilled accept bamboo cabane struts gun cavities circular vent holes opening immediately below valve cover projection may cut painted flat black later sides nose filled 1/16 sheet balsa bottom chin is soft balsa slightly rounded forward landing gear struts Cut nose block hard balsa block laminate 4 sheet balsa Fit 1/16-in inside diameter ID aluminum tubing nylon thrust button prop shaft should 045-in wire Incor porate 2 upthrust mentioned earlier Exhaust pipes may made soda straws fashioned balsa Valve cover fairings balsa two Vickers guns made wrapping paper around dowel cementing seam After removing dowel fill front end small balsa disc add short muzzle details should given least two coats sanding sealer before final coloring applied landing gear bent 1/32-in wire See sketch general arrangement spreader bar soldered crotch Vs Note front legs cemented 1/16 sheet cross piece inside fuselage rear legs free travel through holes provided fuselage bottom allows spring wire absorb impact shock transmitting stress structural members Fill fuselage bottom 1/20 sheet balsa cockpit area Add streamlined balsa fairings landing gear legs axle Finished models wings removed Rigging 2lb.test nylon fishing leadernot adds appearance also provides ri gidity planning Continuous piece does set June 1981 75 N 7 harhoodw4 Lait6oo sfra1 INTERPLANE STRUT MOUNTS CENERAL ARRANGEA4ENT CAANE STRUTS Turn wheels medium balsa using small lathe have chucking rough wheel disc drill motor may done cementing -in hardwood dowel about 1 long center balsa disc becoming piece placed chuck After contouring tire wheel various grades sandpaper cut dowel off flush wheel sides drill 1/32-in hole axle tail skid fashioned bamboo sliver set scrap balsa block cemented tail post model made wings removable retained rubberbands absorb impact shock weight penalty very slight four wing panels provided 1/16-in ID alu minum tubing cemented root ribs running parallel spar sides tubes mate similar tubing cemented transversely across fuselage two supported cabane struts two across cockpit bottom lower wings Hardwood dowel 1/16-in dia about 1 long forced eight tube ends forming plug-in capability case broken dowels may easily replaced pushing broken parts out tubing Allow dihedral cementing tubing place Wing construction Cut 32 ribs 1/20 medium balsa 16 top wing 16 bottom streamlined wing Pin batch together sand carefully assure uniformity airfoil accuracy Scribe spar locations sharp soft pencil making sure 900 rib chord Carefully file notches receive four 1/16 sq spars ribs vulnerable breakage little web separates top spar bottom After removing pins application ofcyano acrylate glue such Hot Stufi web individual ribs greatly strengthens balsa Assemble ribs over plans fitting two lower spars Carefully force top spars place Position leading trailing edges place Check assembly alignment apply cyanoacrylate glue joints doesnt make difference wings built first sure root ribs slightly angled lower panels accommodate dihedral four wing panels have hard balsa filler pieces cemented between top bottom spars root rib second rib contributes strength wing vulnerable also forms base aluminum tubing plug-in wing tips made laminating two pieces 1/32 x wood has soaked hot water around thick -in card board balsa forms have cut tip contour Wax edges form common household candle childs crayon before applying white glue basswood held place overnight pins white glue tends seep out between laminations waxing facilitates re moval tip part form After tip thoroughly dry trim shown cement place Pinch top bottom 1/16 sq spars butt tips Apply cyano acrylate glue Cement 16 interplane strut bases place noting should position top surface bottom wing bottom surface top wing got Later after covering has applied drilled accept -in balsa dowels about -in long become straw interplane strut mounts Carefully contour leading trailing edges conform airfoil fairing basswood tips frame members should finished 400-grit sandpaper Tail surfaces stabilizer constructed laying hard 1/16 sq balsa over plans spars ribs located Position /16 x a leading trailing edges place Apply cyanoacrylate glue joints 1/16-in ribs built up applying 1/16 x 3/32 pieces glued 1/16 edge running full chord leading trailing edge pieces trimmed give lifting airfoil also strengthen framework structure abuts spar Tips laminated same manner wing tips See typical stabilizer cross section plans Build rudder same way stab make airfoil symmetrical Finishing Covering Dolphin easy requir ing comment sure apply adhesive undercamber top wing favor using diluted white glue adhere white tissue frame may prefer clear dope something else Use whatever provides best results color scheme Dolphin followed prevailing British practice 1918olive drab fuselage top surfaces wings stab cream undersides entire aircraft some Dolphins metal portion turtleback fuselage forward cabane struts painted light gray wheels Identifying letters numerals white excep tion derside lower right wing black rudder striped red white blue blue stripe being closest fin After covering model shrink tissue fine spray rubbing alcohol evaporates much rapidly water minimizes possibility loosened glue joints colored model Spray Mark aerosol dye available through better stocked art supply stores has advantage being transparent very light has excellent resist ance fading Its main shortcoming water-soluble requires least two coats clear dope effectively seal areas model roundels shown masked frisket thin trans lucent vinyl-like material adhesive back also available through art supply stores roundels well rudder stripes cut colored tissue doped onto white tissue interplane struts made strong light cocktail straws painted gray fit down over little balsa dowels described earlier Because straws polyethelene plastic resist glues cements helps take small rat-tailed file roughen insides straw before usingpreferably epoxy Flatten slightly streamlined section Although looks somewhat complex rigging really quite simple Thread 2-lb-test nylon fishing leader small needle proceed stitch rigging place piercing straw strut bases care planning continuous piece thread can used set wings rigging lends character model contributes great deal unifying wing assemblies use removable wing feature sure install small hooks leading trailing portions both top bottom wings rubberbands can hold wings place stretch between top panels approximately spars under cockpit lower wings Finish detailing model ink-ruled lines ailerons rudder stabilizer separations Flying intend let Dolphin take off ground ROG use 8-in Peck-Polymers prop 9-in gives significantly better per formance Power model four lubed strands 3/16-in rubber pleasant notrauma flights Six strands really gets up makes adjustment little critical Rubber should measure about twice length distance aluminum tube nose should able pack least 1600 turns four-strand motor Dolphin few models have flown feel absolute confidence what going release predictable flier structure able take lot abuse looking World War subject isnt often modeled Sopwith Dolphin has lot offer Safe Flying No Accident 76 Model Aviation Author launches model early morning sortie Noonan says few models has flown feels absolute confidence what going doa predictable flier rugged picture David Noonan others author
Edition: Model Aviation - 1981/06
Page Numbers: 72, 73, 74, 75, 76
NO OCR TEXT Bill Noona 01 hin master Free Flight Scale shares us another delightful rubberpowered creations -in equals 1-ft scale has some aerodynamic gymnastics allows biplane configuration act high-wing mono plane insofar bal ance concerned THE SOPWITH DOLPHIN contrary pop ular belief excellent aircraft Only after installation 300-hp Hispano-Suiza engine lieu unreliable 200-hp version did Dolphin prove itself combat weapon Un fortunately came closing months 1918 too late airplane demonstrate its full capabilities Its performance superior other aircraft service November 1918 Dolphin configuration suggests its designer Herbert Smith hoped achieve high degree maneuverability repeating lessons learned famous Camel close grouping engine armament fuel tanks pilot compact mass Along Smith took somewhat unorthodox design route assure pilot optimum upper visibility primary tactical advantage aerial combat pilot sat framed middle opening center top wing positioned low above fuselage center gravity CG lift arrangements dictated lower wing ahead upper creating negative stagger Dolphin design distinction Sopwith Dolphin provides basis interesting modeling subject possesses good proportions well-documented photo graphically like incorporate details drawback might say short nose can detrimental flight duration rubber models requires excessive ballast bring CG its correct position decided try idea alleviate shortcoming look Dolphin parasol monoplane wing just about perfect location generous area top wing quite adequate terms potential lift give bottom wing streamlined non-lifting airfoil will just go along ride doing allow Ah gorgeous lines biplane keep model light good flying covered white tissue colored dye spray canfrom art supply stores Fuselage tops wing/stab olive drab cream bottoms June 1981 73 rusu uy u1 dutnur oopwiin uopnin snown Ott TO gooa aavantage view bymmetrical airfoil bottom wing doesnt show angles Surprisingly model requires 2 upthrust Author recommends Peck-Polymers propB-in dia takeoffs planned 9-in belier performance hand-launching Uses four six strands 3/16-in rubber power j FULLSIZE PLANS AVAILABLE. SEE PAGE 140 sd4a T1ckyr9p e -- wi#q spars s/nt motngt 0 red flf hwv I 4nunaer~spvm X zpc& basswovd rLi6e1-anc4or top wing t7t-4 b4sa F Lass wooa AJICS aAn hustrd ttP nik hn stzzb cross -sa - spars-4 sq hadAaLi-a Kn whar top wfn5 black bottom Wng SOPWITH DOLPHIN Flying ScaleRubber Power DESIGNED AND DRAWN eYuffPOOnaw smsntittai4enni wsti tnk CG related upper rearward wing works remarkably well model needs no additional weight nose best absolutely stablewith spectacular windy weather penetration peculiar require ments need 20 upthrust Most Scale models require just opposite Dolphin easy build end result model lot character primary source information old Profile Series Number 169 squadron markings shown publication give builder choice about eight different schemes Fuselage construction Before starting con struction well protect plans surplus cement overlaying wax paper Saran Wrap Lay 3/32 sq medium balsa longerons over side view pin through balsa Carefully cut set 1 / 16 sq uprights diagonals uprights either end longerons 3/32 sq Make right left side manner keeping 1/16 material inside 3/32 longerons makes better looking covering job later After cement thoroughly dry remove sides fit widest cross-members 1/16 sq cockpit area After cementing pinch nose tail Note nose has slight taper Cement tail post add nose cross pieces holding together spring clips lightweight adjustable clamps Fill other cross 74 Model Aviation top Wbt9 ctgegch- sft alia bottom strtnyr /iCalsonsfrrmtrs- a1a s HpthruM whqtrkhrr6 naneT6IIsoo - iy&britof $41n tbE5 uncoverea srucsure Deaulmiul viuu arge enough wood sizes arent ultra-delicate Interplane struts cocktail straws Pilot figure machine guns exhaust stacks turneu wrleels enhance models looks dont weigh much can added fairly easy rear fe5 jsJree travef LANDING GEAR ARRANGEMESIr pieces Add 1/16 sheet lower wing root filler also filler pieces accommodate rubber anchor tubing See position plans Cut turtleback formers light 1/16 sheet balsa Cement place file stringer notches small file folded sandpaper Stringers may sliced 3/32 x 1/32 hard balsa similar size basswood available model railroad shops basswood has advantage sagging between formers Note stringers run bulkhead 2 4 i-ply bristol card stock covering turtleback immediately behind cockpit simulate metal covering found real machine sculptured cowling surrounding cockpit engine portion carved soft balsa block hollowed out about -in wall thickness component requires some care fit accurately has drilled accept bamboo cabane struts gun cavities circular vent holes opening immediately below valve cover projection may cut painted flat black later sides nose filled 1/16 sheet balsa bottom chin is soft balsa slightly rounded forward landing gear struts Cut nose block hard balsa block laminate 4 sheet balsa Fit 1/16-in inside diameter ID aluminum tubing nylon thrust button prop shaft should 045-in wire Incor porate 2 upthrust mentioned earlier Exhaust pipes may made soda straws fashioned balsa Valve cover fairings balsa two Vickers guns made wrapping paper around dowel cementing seam After removing dowel fill front end small balsa disc add short muzzle details should given least two coats sanding sealer before final coloring applied landing gear bent 1/32-in wire See sketch general arrangement spreader bar soldered crotch Vs Note front legs cemented 1/16 sheet cross piece inside fuselage rear legs free travel through holes provided fuselage bottom allows spring wire absorb impact shock transmitting stress structural members Fill fuselage bottom 1/20 sheet balsa cockpit area Add streamlined balsa fairings landing gear legs axle Finished models wings removed Rigging 2lb.test nylon fishing leadernot adds appearance also provides ri gidity planning Continuous piece does set June 1981 75 N 7 harhoodw4 Lait6oo sfra1 INTERPLANE STRUT MOUNTS CENERAL ARRANGEA4ENT CAANE STRUTS Turn wheels medium balsa using small lathe have chucking rough wheel disc drill motor may done cementing -in hardwood dowel about 1 long center balsa disc becoming piece placed chuck After contouring tire wheel various grades sandpaper cut dowel off flush wheel sides drill 1/32-in hole axle tail skid fashioned bamboo sliver set scrap balsa block cemented tail post model made wings removable retained rubberbands absorb impact shock weight penalty very slight four wing panels provided 1/16-in ID alu minum tubing cemented root ribs running parallel spar sides tubes mate similar tubing cemented transversely across fuselage two supported cabane struts two across cockpit bottom lower wings Hardwood dowel 1/16-in dia about 1 long forced eight tube ends forming plug-in capability case broken dowels may easily replaced pushing broken parts out tubing Allow dihedral cementing tubing place Wing construction Cut 32 ribs 1/20 medium balsa 16 top wing 16 bottom streamlined wing Pin batch together sand carefully assure uniformity airfoil accuracy Scribe spar locations sharp soft pencil making sure 900 rib chord Carefully file notches receive four 1/16 sq spars ribs vulnerable breakage little web separates top spar bottom After removing pins application ofcyano acrylate glue such Hot Stufi web individual ribs greatly strengthens balsa Assemble ribs over plans fitting two lower spars Carefully force top spars place Position leading trailing edges place Check assembly alignment apply cyanoacrylate glue joints doesnt make difference wings built first sure root ribs slightly angled lower panels accommodate dihedral four wing panels have hard balsa filler pieces cemented between top bottom spars root rib second rib contributes strength wing vulnerable also forms base aluminum tubing plug-in wing tips made laminating two pieces 1/32 x wood has soaked hot water around thick -in card board balsa forms have cut tip contour Wax edges form common household candle childs crayon before applying white glue basswood held place overnight pins white glue tends seep out between laminations waxing facilitates re moval tip part form After tip thoroughly dry trim shown cement place Pinch top bottom 1/16 sq spars butt tips Apply cyano acrylate glue Cement 16 interplane strut bases place noting should position top surface bottom wing bottom surface top wing got Later after covering has applied drilled accept -in balsa dowels about -in long become straw interplane strut mounts Carefully contour leading trailing edges conform airfoil fairing basswood tips frame members should finished 400-grit sandpaper Tail surfaces stabilizer constructed laying hard 1/16 sq balsa over plans spars ribs located Position /16 x a leading trailing edges place Apply cyanoacrylate glue joints 1/16-in ribs built up applying 1/16 x 3/32 pieces glued 1/16 edge running full chord leading trailing edge pieces trimmed give lifting airfoil also strengthen framework structure abuts spar Tips laminated same manner wing tips See typical stabilizer cross section plans Build rudder same way stab make airfoil symmetrical Finishing Covering Dolphin easy requir ing comment sure apply adhesive undercamber top wing favor using diluted white glue adhere white tissue frame may prefer clear dope something else Use whatever provides best results color scheme Dolphin followed prevailing British practice 1918olive drab fuselage top surfaces wings stab cream undersides entire aircraft some Dolphins metal portion turtleback fuselage forward cabane struts painted light gray wheels Identifying letters numerals white excep tion derside lower right wing black rudder striped red white blue blue stripe being closest fin After covering model shrink tissue fine spray rubbing alcohol evaporates much rapidly water minimizes possibility loosened glue joints colored model Spray Mark aerosol dye available through better stocked art supply stores has advantage being transparent very light has excellent resist ance fading Its main shortcoming water-soluble requires least two coats clear dope effectively seal areas model roundels shown masked frisket thin trans lucent vinyl-like material adhesive back also available through art supply stores roundels well rudder stripes cut colored tissue doped onto white tissue interplane struts made strong light cocktail straws painted gray fit down over little balsa dowels described earlier Because straws polyethelene plastic resist glues cements helps take small rat-tailed file roughen insides straw before usingpreferably epoxy Flatten slightly streamlined section Although looks somewhat complex rigging really quite simple Thread 2-lb-test nylon fishing leader small needle proceed stitch rigging place piercing straw strut bases care planning continuous piece thread can used set wings rigging lends character model contributes great deal unifying wing assemblies use removable wing feature sure install small hooks leading trailing portions both top bottom wings rubberbands can hold wings place stretch between top panels approximately spars under cockpit lower wings Finish detailing model ink-ruled lines ailerons rudder stabilizer separations Flying intend let Dolphin take off ground ROG use 8-in Peck-Polymers prop 9-in gives significantly better per formance Power model four lubed strands 3/16-in rubber pleasant notrauma flights Six strands really gets up makes adjustment little critical Rubber should measure about twice length distance aluminum tube nose should able pack least 1600 turns four-strand motor Dolphin few models have flown feel absolute confidence what going release predictable flier structure able take lot abuse looking World War subject isnt often modeled Sopwith Dolphin has lot offer Safe Flying No Accident 76 Model Aviation Author launches model early morning sortie Noonan says few models has flown feels absolute confidence what going doa predictable flier rugged picture David Noonan others author
Edition: Model Aviation - 1981/06
Page Numbers: 72, 73, 74, 75, 76
NO OCR TEXT Bill Noona 01 hin master Free Flight Scale shares us another delightful rubberpowered creations -in equals 1-ft scale has some aerodynamic gymnastics allows biplane configuration act high-wing mono plane insofar bal ance concerned THE SOPWITH DOLPHIN contrary pop ular belief excellent aircraft Only after installation 300-hp Hispano-Suiza engine lieu unreliable 200-hp version did Dolphin prove itself combat weapon Un fortunately came closing months 1918 too late airplane demonstrate its full capabilities Its performance superior other aircraft service November 1918 Dolphin configuration suggests its designer Herbert Smith hoped achieve high degree maneuverability repeating lessons learned famous Camel close grouping engine armament fuel tanks pilot compact mass Along Smith took somewhat unorthodox design route assure pilot optimum upper visibility primary tactical advantage aerial combat pilot sat framed middle opening center top wing positioned low above fuselage center gravity CG lift arrangements dictated lower wing ahead upper creating negative stagger Dolphin design distinction Sopwith Dolphin provides basis interesting modeling subject possesses good proportions well-documented photo graphically like incorporate details drawback might say short nose can detrimental flight duration rubber models requires excessive ballast bring CG its correct position decided try idea alleviate shortcoming look Dolphin parasol monoplane wing just about perfect location generous area top wing quite adequate terms potential lift give bottom wing streamlined non-lifting airfoil will just go along ride doing allow Ah gorgeous lines biplane keep model light good flying covered white tissue colored dye spray canfrom art supply stores Fuselage tops wing/stab olive drab cream bottoms June 1981 73 rusu uy u1 dutnur oopwiin uopnin snown Ott TO gooa aavantage view bymmetrical airfoil bottom wing doesnt show angles Surprisingly model requires 2 upthrust Author recommends Peck-Polymers propB-in dia takeoffs planned 9-in belier performance hand-launching Uses four six strands 3/16-in rubber power j FULLSIZE PLANS AVAILABLE. SEE PAGE 140 sd4a T1ckyr9p e -- wi#q spars s/nt motngt 0 red flf hwv I 4nunaer~spvm X zpc& basswovd rLi6e1-anc4or top wing t7t-4 b4sa F Lass wooa AJICS aAn hustrd ttP nik hn stzzb cross -sa - spars-4 sq hadAaLi-a Kn whar top wfn5 black bottom Wng SOPWITH DOLPHIN Flying ScaleRubber Power DESIGNED AND DRAWN eYuffPOOnaw smsntittai4enni wsti tnk CG related upper rearward wing works remarkably well model needs no additional weight nose best absolutely stablewith spectacular windy weather penetration peculiar require ments need 20 upthrust Most Scale models require just opposite Dolphin easy build end result model lot character primary source information old Profile Series Number 169 squadron markings shown publication give builder choice about eight different schemes Fuselage construction Before starting con struction well protect plans surplus cement overlaying wax paper Saran Wrap Lay 3/32 sq medium balsa longerons over side view pin through balsa Carefully cut set 1 / 16 sq uprights diagonals uprights either end longerons 3/32 sq Make right left side manner keeping 1/16 material inside 3/32 longerons makes better looking covering job later After cement thoroughly dry remove sides fit widest cross-members 1/16 sq cockpit area After cementing pinch nose tail Note nose has slight taper Cement tail post add nose cross pieces holding together spring clips lightweight adjustable clamps Fill other cross 74 Model Aviation top Wbt9 ctgegch- sft alia bottom strtnyr /iCalsonsfrrmtrs- a1a s HpthruM whqtrkhrr6 naneT6IIsoo - iy&britof $41n tbE5 uncoverea srucsure Deaulmiul viuu arge enough wood sizes arent ultra-delicate Interplane struts cocktail straws Pilot figure machine guns exhaust stacks turneu wrleels enhance models looks dont weigh much can added fairly easy rear fe5 jsJree travef LANDING GEAR ARRANGEMESIr pieces Add 1/16 sheet lower wing root filler also filler pieces accommodate rubber anchor tubing See position plans Cut turtleback formers light 1/16 sheet balsa Cement place file stringer notches small file folded sandpaper Stringers may sliced 3/32 x 1/32 hard balsa similar size basswood available model railroad shops basswood has advantage sagging between formers Note stringers run bulkhead 2 4 i-ply bristol card stock covering turtleback immediately behind cockpit simulate metal covering found real machine sculptured cowling surrounding cockpit engine portion carved soft balsa block hollowed out about -in wall thickness component requires some care fit accurately has drilled accept bamboo cabane struts gun cavities circular vent holes opening immediately below valve cover projection may cut painted flat black later sides nose filled 1/16 sheet balsa bottom chin is soft balsa slightly rounded forward landing gear struts Cut nose block hard balsa block laminate 4 sheet balsa Fit 1/16-in inside diameter ID aluminum tubing nylon thrust button prop shaft should 045-in wire Incor porate 2 upthrust mentioned earlier Exhaust pipes may made soda straws fashioned balsa Valve cover fairings balsa two Vickers guns made wrapping paper around dowel cementing seam After removing dowel fill front end small balsa disc add short muzzle details should given least two coats sanding sealer before final coloring applied landing gear bent 1/32-in wire See sketch general arrangement spreader bar soldered crotch Vs Note front legs cemented 1/16 sheet cross piece inside fuselage rear legs free travel through holes provided fuselage bottom allows spring wire absorb impact shock transmitting stress structural members Fill fuselage bottom 1/20 sheet balsa cockpit area Add streamlined balsa fairings landing gear legs axle Finished models wings removed Rigging 2lb.test nylon fishing leadernot adds appearance also provides ri gidity planning Continuous piece does set June 1981 75 N 7 harhoodw4 Lait6oo sfra1 INTERPLANE STRUT MOUNTS CENERAL ARRANGEA4ENT CAANE STRUTS Turn wheels medium balsa using small lathe have chucking rough wheel disc drill motor may done cementing -in hardwood dowel about 1 long center balsa disc becoming piece placed chuck After contouring tire wheel various grades sandpaper cut dowel off flush wheel sides drill 1/32-in hole axle tail skid fashioned bamboo sliver set scrap balsa block cemented tail post model made wings removable retained rubberbands absorb impact shock weight penalty very slight four wing panels provided 1/16-in ID alu minum tubing cemented root ribs running parallel spar sides tubes mate similar tubing cemented transversely across fuselage two supported cabane struts two across cockpit bottom lower wings Hardwood dowel 1/16-in dia about 1 long forced eight tube ends forming plug-in capability case broken dowels may easily replaced pushing broken parts out tubing Allow dihedral cementing tubing place Wing construction Cut 32 ribs 1/20 medium balsa 16 top wing 16 bottom streamlined wing Pin batch together sand carefully assure uniformity airfoil accuracy Scribe spar locations sharp soft pencil making sure 900 rib chord Carefully file notches receive four 1/16 sq spars ribs vulnerable breakage little web separates top spar bottom After removing pins application ofcyano acrylate glue such Hot Stufi web individual ribs greatly strengthens balsa Assemble ribs over plans fitting two lower spars Carefully force top spars place Position leading trailing edges place Check assembly alignment apply cyanoacrylate glue joints doesnt make difference wings built first sure root ribs slightly angled lower panels accommodate dihedral four wing panels have hard balsa filler pieces cemented between top bottom spars root rib second rib contributes strength wing vulnerable also forms base aluminum tubing plug-in wing tips made laminating two pieces 1/32 x wood has soaked hot water around thick -in card board balsa forms have cut tip contour Wax edges form common household candle childs crayon before applying white glue basswood held place overnight pins white glue tends seep out between laminations waxing facilitates re moval tip part form After tip thoroughly dry trim shown cement place Pinch top bottom 1/16 sq spars butt tips Apply cyano acrylate glue Cement 16 interplane strut bases place noting should position top surface bottom wing bottom surface top wing got Later after covering has applied drilled accept -in balsa dowels about -in long become straw interplane strut mounts Carefully contour leading trailing edges conform airfoil fairing basswood tips frame members should finished 400-grit sandpaper Tail surfaces stabilizer constructed laying hard 1/16 sq balsa over plans spars ribs located Position /16 x a leading trailing edges place Apply cyanoacrylate glue joints 1/16-in ribs built up applying 1/16 x 3/32 pieces glued 1/16 edge running full chord leading trailing edge pieces trimmed give lifting airfoil also strengthen framework structure abuts spar Tips laminated same manner wing tips See typical stabilizer cross section plans Build rudder same way stab make airfoil symmetrical Finishing Covering Dolphin easy requir ing comment sure apply adhesive undercamber top wing favor using diluted white glue adhere white tissue frame may prefer clear dope something else Use whatever provides best results color scheme Dolphin followed prevailing British practice 1918olive drab fuselage top surfaces wings stab cream undersides entire aircraft some Dolphins metal portion turtleback fuselage forward cabane struts painted light gray wheels Identifying letters numerals white excep tion derside lower right wing black rudder striped red white blue blue stripe being closest fin After covering model shrink tissue fine spray rubbing alcohol evaporates much rapidly water minimizes possibility loosened glue joints colored model Spray Mark aerosol dye available through better stocked art supply stores has advantage being transparent very light has excellent resist ance fading Its main shortcoming water-soluble requires least two coats clear dope effectively seal areas model roundels shown masked frisket thin trans lucent vinyl-like material adhesive back also available through art supply stores roundels well rudder stripes cut colored tissue doped onto white tissue interplane struts made strong light cocktail straws painted gray fit down over little balsa dowels described earlier Because straws polyethelene plastic resist glues cements helps take small rat-tailed file roughen insides straw before usingpreferably epoxy Flatten slightly streamlined section Although looks somewhat complex rigging really quite simple Thread 2-lb-test nylon fishing leader small needle proceed stitch rigging place piercing straw strut bases care planning continuous piece thread can used set wings rigging lends character model contributes great deal unifying wing assemblies use removable wing feature sure install small hooks leading trailing portions both top bottom wings rubberbands can hold wings place stretch between top panels approximately spars under cockpit lower wings Finish detailing model ink-ruled lines ailerons rudder stabilizer separations Flying intend let Dolphin take off ground ROG use 8-in Peck-Polymers prop 9-in gives significantly better per formance Power model four lubed strands 3/16-in rubber pleasant notrauma flights Six strands really gets up makes adjustment little critical Rubber should measure about twice length distance aluminum tube nose should able pack least 1600 turns four-strand motor Dolphin few models have flown feel absolute confidence what going release predictable flier structure able take lot abuse looking World War subject isnt often modeled Sopwith Dolphin has lot offer Safe Flying No Accident 76 Model Aviation Author launches model early morning sortie Noonan says few models has flown feels absolute confidence what going doa predictable flier rugged picture David Noonan others author