Its middle winter Southern Texas means its raining over week Probably appropriate thinking ark next plane Im As pondering go about process design construction recalled methods have tried beforefrom air best jigs devised thought about planes flew best consistently some simply get done turned out okay usually bit heavier took longer trim what looking N really good planes just flew well right start required minimal trim generally feel recollection good planes just went together better perhaps simply precise construction Whatever know reference points good planes right mark initial assembly Now everything Ive said obvious holds true aircraft closer dead true better will fly So theme column perhaps some future columns will make happen Starting off road really gave pause because make unconscious assumptions realizing have technique will perpetuate errors So before talk about flat building surface need have means determining flatness matter establishing straight line youre going need 48-in straightedge good place start Unfortunately straightedges alike Good engineering supply stores have stainless steel milled straightedges accurate theyre cheap aluminum straightedges readily available can have edge thats acceptable youd better look carefully Better yet have access machine shop see have some lIsin /16 sheet steel approximately 48in length could shear off 2 3-inwide piece really critical part run edges through milling machine assure true straight edge assure edge perpendicular surface could also aluminum piece since aluminum softer metal its fragile going take some effort will definitely worth word caution Protect reference edge Now youve got true straightedge lets talk about next step flat building surface Everybody seems have personal preference herewhatever works poinl worthwhile 76 Model Aviation Lx Aerobatics Frank McMiIIan 12106 Gunter Grove San Antonio TX 78231 Jon simpsons 90 91 ships Attractive color schemes built same design refined Individualized Continued page 177 Front end Dick Byrons new ship 1 Hes working new MokI 85cc 5lci Ten half oz single ring double ball bearing Right authors new Caudron front end construction Note liner phonolic engine mounting plate composite firewall Dick Byron finally built new ship L Foam wing Custom Models Bill Hopkins Arlington Texas clean workmanship reflects Dicks efforts scale Jack Foxs brand new Karma design shown right standard John Hill-modified ST 60 powers 66-oz ship worry Just mask off area around boo-boo spot-paint Let diy sand again next issue will cover clear coat fading techniques final airplane setup frequent questions am asked find out about Pylon racing area What kits available What latest information Well other just reading column join organization responsible have today National Miniature Pylon Racing Association NMPRA Write Ron Schorr 5224 Teasdale North Hollywood CA 91607 See next month CL Aerobatics/McMiIIan Continued page 76 considering surfaces seem move over time depending environmental conditions heat cold moisture Some favored bases solid laminated doors As item exercise its best can pick specific example flat edge edge corner corner Just because its laminated doesnt mean its flat Also seconds rejects will serve nicely theyre cheaper flatness care about Right now Im using door Ive covered sheet cork Its supported two filing cabinets has drawer tools suspended underneath setup worked well first time used it started shift needed means adjusting surface Moving supports provided gross adjustment settled covering surface /4-in sheet glass am now able shine surface true playing cards just before actually use Also can tack structures surface thin glue clean later knife blade Reference lines board underneath can easily seen through glass very serviceable combination recommend highly Just dont skip means get back flat Thats need straightedge reference point Before move away building surfaces another approach special application foam wings first started doing own Ibam surfaces getting mixed results Sometimes good surfaces sometimes acceptable Lou Dudka helping wouldnt have made progress him After discussing length cause inconsistency appeared surface cutting settled same type surface Lou using large foam block four feet side foam supplier cut face true selected best surface though surfaces cut huge hot wire jig surface really flat protect surface covered /8-in plate glass answer inconsistencies Id experienced surface now cut true sheeted fiat Its important note over long term surface has remained fiat since material virtually inert Lets get building point Im gong tell old ways building wings pinning ribs edges true surface gluing up removing dont work Obviously simple use take care experience however foolproof just prefer expend time energy surface will correct course Im focusing built-up wings rather foam construction far best jig setup built-up wings probably also simplest heart system two 3/s-in hard aluminum tubes approximately 60 inches length tubes have true ie bends material readily available local metal suppliers base jig approximately foot five feet 3/4-in thick Plywood best composition acceptable will also need four upright pieces foot square support tubes upright pieces must equal height top parallel bottom two critical dimensions jig Screw glue uprights base inner two supports centered 18 inches separation outer supports jtist short ends setup will easily accommodate 60-inch-plus spans Before go further have decide standard tube spacing Different people using same method seem settle somewhere between four five inches trial fit tubes top uprights Now want get fancier install wood screws bolts tubing upright beneath spot tubing rests upright posts will anchor rubber bands hold tubes j J y JJ U NEW Micro-Jet Package TO BUILD FAN POWER MODULE Enhire nrodole weidhs InSt 26 grams ounce thrust FIies models 60 90 in2 & up 3 onnoes Paokage Includes motor 3o5imah NiCd bailery wiring harness charger paris complete irsirooilOns build ion unit Serd 5i $1995 P&Hin Coining high-tech fe pr m 4 . 9 4 hihlncn1j pr Ifs] 4 PERFECT E f ISA QUICK DRY WHITE PRIMER Perfect Prime dries flat white providing excellent base coat will distort critical color matches Perfect Prime intensifies true color depth Primes surface wood fiber glass plastic metal paper fabric coverings Sands easily p~acheveronhobbyaproductsu PO Box 2480 usky Ohio 44870 419 797-22S8 AVIATION CfIlISTMAS GIETS SALE FVALUABLE COUPON Flying paper CORSAIR Procut/colored W/MOTOR $4 2 $6t Pre colored GIFT gliders ckers & envelopes I12/$3 24/$5j CATALOG t3000 planes $10 Refundable what order over $25l IPAPERAIRPLANE club $1500_I PAPER AIRPLANESI K 433NIHOASTREET AHULUI HI 96732 USA kenl t4arco April 1992 177 HTSYSTEMS-~ THE BEST IN ELECTRIC FLIGHT specIahzirlg ASTRO FLIGHT SYSTEMS sales & drStrrSutiOn sWE CATER TO ThE ELECTRIC FLYER EXPERT 50 ears orRCEperei0neassrerecrrorsflreoorrnoeroasssr AOVISEye rr nrreeds WRY PAYOenorr ToeS orra roroinsi SeGa MORE FASTEST SELIVERY 0 Tn Ma 000ra Fpress LARGEST STOCK OF ELECTRIC FLIGHT EQUIPMENT IN THE NORTHEAST Cararog USA Foreign 5600 V SA S Master Card Cs FUGHT SYSTEMS IRM S Spiel 31 Perry Srreel esoro IdA 00346 Phone 508 540 2805 65 PM Evenings07 PM Weekends CTRICS ARE NOW ERS ONLY 1-800-446-FLYE upright prcfer per post because doesnt preSstlre ribs Next cut notch inner uprights just forward tube resting points will allow spars may choose About two inches deep forward edge will plenty should complete whole dealtwo tubes attached four uprights held parallel other uprights rubber bands use jig lay out rib templates start tip rib Take template tube spacing laid out four live inches position centerline rib forward tube just aft spar aft tube location will line up centerline Now take root rib line up trailing edge relative tip Align centerlines both ribs mark tube locations through tip root template procedure will work straight swept forward trailing edges wings dihedral refer Al Rabes plan sets has guide lay out holes jig works well ee$rX//a/ Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RC Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 wing types provided lay out holes properly Some thoughts cutting holes like take time use 31s-in brass tubing end sharpened punch hole individually Use rib templates guide punch out blanks have enough assemble stack rib blanks between blanks short pieces 3/g brass tube carve Out ribs Note accuracy wing depends relationship templates 3/8-in holes Centerlines holes Inust line up its snap Carefully slide ribs Onto tubes stack way its easier move ribs cracking Drop rib time get approximate location will need Mount tubes rubberbands semi-finalize spacing Lay spars leading trailing edges depending construction dont glue yet Check alignment again see tubes straight sight down interiors Youll surprised see can determine variance little few thousandths inch need make slight correction try 1/64 ply shims Note corrections straighten tubes take account base may have bowed over time thing watch tubes control centerline ribs check tube stations level dont get too far out little tweak thats needed usually try build whole wing first alignmentexcept bottom planking ready simply undo rubberbands flip over point should re-check re-tweak tube alignment Complete wing youll have super true wing thing havent mentioned yet use heavy rubberbands holders will hit tubes times during course construction thin bands will permit some flex heavy ones wont What will give ribs Next month Ill talk about fuselage jigs Word Caution noticed Klotz marketing Prope fuel additive As PREFLIGHT TIE DOWN Heavy duty safety tie down Gray Brothers start up idling size fits models quarter scale Big Birds down Only $1 650 plus $550 shipping & handling combination soft fuel resistant foam padding - heavy gage steel make unit valuable preflight tools Send check money order Gray Brothers Stamping & Machine Inc 424 West Chicago Road White Pigeon MI 49099 BOX 7531-TACOMA WA 98401 SINCE 1981 know ingredient has used years igniter fuels does work well commercial fuels use ito 2% some competition fuels like Carrier use considerably Ive sometimes used much 4% help stumbling engine cool conditions Btit extremely cautious becatlse ad points out Prope boils off around 4fl0 Fahrenheit bad experience once ice chest car ice melted over period time metal can expanded causing some gas enter closed car dont want happen use mix fuel home use charcoal-filter mask prevent breathing vapors Corrections issue reporting FAI Team Trials engines used Bill Werwage Bob Hunt OPS-40 SPP OS 40s ombat/Johnson Continued page 77 Thats what timer saw other timer will likely say Oh well t just missed official scores three cuts timer still knows saw four begins wonder hes asked help judgement trusted Having people stand around circle various vantage points may indeed allow cuts seen problem 178 Model Aviation Original Home Machine Shop Designed USA Shoptask I3 Models Choose As Low As 9959 3 Axis Power Feed Aoailable 12 MontIl Wa,Aflts 15500 Pats Toolieg Anal able 17 Swing 11 18 Miii Table 1-800-343-5775FREE CATALOGUE DONT GET STUCK WITH CHINESE COPIES
Edition: Model Aviation - 1992/04
Page Numbers: 76, 177, 178
Its middle winter Southern Texas means its raining over week Probably appropriate thinking ark next plane Im As pondering go about process design construction recalled methods have tried beforefrom air best jigs devised thought about planes flew best consistently some simply get done turned out okay usually bit heavier took longer trim what looking N really good planes just flew well right start required minimal trim generally feel recollection good planes just went together better perhaps simply precise construction Whatever know reference points good planes right mark initial assembly Now everything Ive said obvious holds true aircraft closer dead true better will fly So theme column perhaps some future columns will make happen Starting off road really gave pause because make unconscious assumptions realizing have technique will perpetuate errors So before talk about flat building surface need have means determining flatness matter establishing straight line youre going need 48-in straightedge good place start Unfortunately straightedges alike Good engineering supply stores have stainless steel milled straightedges accurate theyre cheap aluminum straightedges readily available can have edge thats acceptable youd better look carefully Better yet have access machine shop see have some lIsin /16 sheet steel approximately 48in length could shear off 2 3-inwide piece really critical part run edges through milling machine assure true straight edge assure edge perpendicular surface could also aluminum piece since aluminum softer metal its fragile going take some effort will definitely worth word caution Protect reference edge Now youve got true straightedge lets talk about next step flat building surface Everybody seems have personal preference herewhatever works poinl worthwhile 76 Model Aviation Lx Aerobatics Frank McMiIIan 12106 Gunter Grove San Antonio TX 78231 Jon simpsons 90 91 ships Attractive color schemes built same design refined Individualized Continued page 177 Front end Dick Byrons new ship 1 Hes working new MokI 85cc 5lci Ten half oz single ring double ball bearing Right authors new Caudron front end construction Note liner phonolic engine mounting plate composite firewall Dick Byron finally built new ship L Foam wing Custom Models Bill Hopkins Arlington Texas clean workmanship reflects Dicks efforts scale Jack Foxs brand new Karma design shown right standard John Hill-modified ST 60 powers 66-oz ship worry Just mask off area around boo-boo spot-paint Let diy sand again next issue will cover clear coat fading techniques final airplane setup frequent questions am asked find out about Pylon racing area What kits available What latest information Well other just reading column join organization responsible have today National Miniature Pylon Racing Association NMPRA Write Ron Schorr 5224 Teasdale North Hollywood CA 91607 See next month CL Aerobatics/McMiIIan Continued page 76 considering surfaces seem move over time depending environmental conditions heat cold moisture Some favored bases solid laminated doors As item exercise its best can pick specific example flat edge edge corner corner Just because its laminated doesnt mean its flat Also seconds rejects will serve nicely theyre cheaper flatness care about Right now Im using door Ive covered sheet cork Its supported two filing cabinets has drawer tools suspended underneath setup worked well first time used it started shift needed means adjusting surface Moving supports provided gross adjustment settled covering surface /4-in sheet glass am now able shine surface true playing cards just before actually use Also can tack structures surface thin glue clean later knife blade Reference lines board underneath can easily seen through glass very serviceable combination recommend highly Just dont skip means get back flat Thats need straightedge reference point Before move away building surfaces another approach special application foam wings first started doing own Ibam surfaces getting mixed results Sometimes good surfaces sometimes acceptable Lou Dudka helping wouldnt have made progress him After discussing length cause inconsistency appeared surface cutting settled same type surface Lou using large foam block four feet side foam supplier cut face true selected best surface though surfaces cut huge hot wire jig surface really flat protect surface covered /8-in plate glass answer inconsistencies Id experienced surface now cut true sheeted fiat Its important note over long term surface has remained fiat since material virtually inert Lets get building point Im gong tell old ways building wings pinning ribs edges true surface gluing up removing dont work Obviously simple use take care experience however foolproof just prefer expend time energy surface will correct course Im focusing built-up wings rather foam construction far best jig setup built-up wings probably also simplest heart system two 3/s-in hard aluminum tubes approximately 60 inches length tubes have true ie bends material readily available local metal suppliers base jig approximately foot five feet 3/4-in thick Plywood best composition acceptable will also need four upright pieces foot square support tubes upright pieces must equal height top parallel bottom two critical dimensions jig Screw glue uprights base inner two supports centered 18 inches separation outer supports jtist short ends setup will easily accommodate 60-inch-plus spans Before go further have decide standard tube spacing Different people using same method seem settle somewhere between four five inches trial fit tubes top uprights Now want get fancier install wood screws bolts tubing upright beneath spot tubing rests upright posts will anchor rubber bands hold tubes j J y JJ U NEW Micro-Jet Package TO BUILD FAN POWER MODULE Enhire nrodole weidhs InSt 26 grams ounce thrust FIies models 60 90 in2 & up 3 onnoes Paokage Includes motor 3o5imah NiCd bailery wiring harness charger paris complete irsirooilOns build ion unit Serd 5i $1995 P&Hin Coining high-tech fe pr m 4 . 9 4 hihlncn1j pr Ifs] 4 PERFECT E f ISA QUICK DRY WHITE PRIMER Perfect Prime dries flat white providing excellent base coat will distort critical color matches Perfect Prime intensifies true color depth Primes surface wood fiber glass plastic metal paper fabric coverings Sands easily p~acheveronhobbyaproductsu PO Box 2480 usky Ohio 44870 419 797-22S8 AVIATION CfIlISTMAS GIETS SALE FVALUABLE COUPON Flying paper CORSAIR Procut/colored W/MOTOR $4 2 $6t Pre colored GIFT gliders ckers & envelopes I12/$3 24/$5j CATALOG t3000 planes $10 Refundable what order over $25l IPAPERAIRPLANE club $1500_I PAPER AIRPLANESI K 433NIHOASTREET AHULUI HI 96732 USA kenl t4arco April 1992 177 HTSYSTEMS-~ THE BEST IN ELECTRIC FLIGHT specIahzirlg ASTRO FLIGHT SYSTEMS sales & drStrrSutiOn sWE CATER TO ThE ELECTRIC FLYER EXPERT 50 ears orRCEperei0neassrerecrrorsflreoorrnoeroasssr AOVISEye rr nrreeds WRY PAYOenorr ToeS orra roroinsi SeGa MORE FASTEST SELIVERY 0 Tn Ma 000ra Fpress LARGEST STOCK OF ELECTRIC FLIGHT EQUIPMENT IN THE NORTHEAST Cararog USA Foreign 5600 V SA S Master Card Cs FUGHT SYSTEMS IRM S Spiel 31 Perry Srreel esoro IdA 00346 Phone 508 540 2805 65 PM Evenings07 PM Weekends CTRICS ARE NOW ERS ONLY 1-800-446-FLYE upright prcfer per post because doesnt preSstlre ribs Next cut notch inner uprights just forward tube resting points will allow spars may choose About two inches deep forward edge will plenty should complete whole dealtwo tubes attached four uprights held parallel other uprights rubber bands use jig lay out rib templates start tip rib Take template tube spacing laid out four live inches position centerline rib forward tube just aft spar aft tube location will line up centerline Now take root rib line up trailing edge relative tip Align centerlines both ribs mark tube locations through tip root template procedure will work straight swept forward trailing edges wings dihedral refer Al Rabes plan sets has guide lay out holes jig works well ee$rX//a/ Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RC Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 wing types provided lay out holes properly Some thoughts cutting holes like take time use 31s-in brass tubing end sharpened punch hole individually Use rib templates guide punch out blanks have enough assemble stack rib blanks between blanks short pieces 3/g brass tube carve Out ribs Note accuracy wing depends relationship templates 3/8-in holes Centerlines holes Inust line up its snap Carefully slide ribs Onto tubes stack way its easier move ribs cracking Drop rib time get approximate location will need Mount tubes rubberbands semi-finalize spacing Lay spars leading trailing edges depending construction dont glue yet Check alignment again see tubes straight sight down interiors Youll surprised see can determine variance little few thousandths inch need make slight correction try 1/64 ply shims Note corrections straighten tubes take account base may have bowed over time thing watch tubes control centerline ribs check tube stations level dont get too far out little tweak thats needed usually try build whole wing first alignmentexcept bottom planking ready simply undo rubberbands flip over point should re-check re-tweak tube alignment Complete wing youll have super true wing thing havent mentioned yet use heavy rubberbands holders will hit tubes times during course construction thin bands will permit some flex heavy ones wont What will give ribs Next month Ill talk about fuselage jigs Word Caution noticed Klotz marketing Prope fuel additive As PREFLIGHT TIE DOWN Heavy duty safety tie down Gray Brothers start up idling size fits models quarter scale Big Birds down Only $1 650 plus $550 shipping & handling combination soft fuel resistant foam padding - heavy gage steel make unit valuable preflight tools Send check money order Gray Brothers Stamping & Machine Inc 424 West Chicago Road White Pigeon MI 49099 BOX 7531-TACOMA WA 98401 SINCE 1981 know ingredient has used years igniter fuels does work well commercial fuels use ito 2% some competition fuels like Carrier use considerably Ive sometimes used much 4% help stumbling engine cool conditions Btit extremely cautious becatlse ad points out Prope boils off around 4fl0 Fahrenheit bad experience once ice chest car ice melted over period time metal can expanded causing some gas enter closed car dont want happen use mix fuel home use charcoal-filter mask prevent breathing vapors Corrections issue reporting FAI Team Trials engines used Bill Werwage Bob Hunt OPS-40 SPP OS 40s ombat/Johnson Continued page 77 Thats what timer saw other timer will likely say Oh well t just missed official scores three cuts timer still knows saw four begins wonder hes asked help judgement trusted Having people stand around circle various vantage points may indeed allow cuts seen problem 178 Model Aviation Original Home Machine Shop Designed USA Shoptask I3 Models Choose As Low As 9959 3 Axis Power Feed Aoailable 12 MontIl Wa,Aflts 15500 Pats Toolieg Anal able 17 Swing 11 18 Miii Table 1-800-343-5775FREE CATALOGUE DONT GET STUCK WITH CHINESE COPIES
Edition: Model Aviation - 1992/04
Page Numbers: 76, 177, 178
Its middle winter Southern Texas means its raining over week Probably appropriate thinking ark next plane Im As pondering go about process design construction recalled methods have tried beforefrom air best jigs devised thought about planes flew best consistently some simply get done turned out okay usually bit heavier took longer trim what looking N really good planes just flew well right start required minimal trim generally feel recollection good planes just went together better perhaps simply precise construction Whatever know reference points good planes right mark initial assembly Now everything Ive said obvious holds true aircraft closer dead true better will fly So theme column perhaps some future columns will make happen Starting off road really gave pause because make unconscious assumptions realizing have technique will perpetuate errors So before talk about flat building surface need have means determining flatness matter establishing straight line youre going need 48-in straightedge good place start Unfortunately straightedges alike Good engineering supply stores have stainless steel milled straightedges accurate theyre cheap aluminum straightedges readily available can have edge thats acceptable youd better look carefully Better yet have access machine shop see have some lIsin /16 sheet steel approximately 48in length could shear off 2 3-inwide piece really critical part run edges through milling machine assure true straight edge assure edge perpendicular surface could also aluminum piece since aluminum softer metal its fragile going take some effort will definitely worth word caution Protect reference edge Now youve got true straightedge lets talk about next step flat building surface Everybody seems have personal preference herewhatever works poinl worthwhile 76 Model Aviation Lx Aerobatics Frank McMiIIan 12106 Gunter Grove San Antonio TX 78231 Jon simpsons 90 91 ships Attractive color schemes built same design refined Individualized Continued page 177 Front end Dick Byrons new ship 1 Hes working new MokI 85cc 5lci Ten half oz single ring double ball bearing Right authors new Caudron front end construction Note liner phonolic engine mounting plate composite firewall Dick Byron finally built new ship L Foam wing Custom Models Bill Hopkins Arlington Texas clean workmanship reflects Dicks efforts scale Jack Foxs brand new Karma design shown right standard John Hill-modified ST 60 powers 66-oz ship worry Just mask off area around boo-boo spot-paint Let diy sand again next issue will cover clear coat fading techniques final airplane setup frequent questions am asked find out about Pylon racing area What kits available What latest information Well other just reading column join organization responsible have today National Miniature Pylon Racing Association NMPRA Write Ron Schorr 5224 Teasdale North Hollywood CA 91607 See next month CL Aerobatics/McMiIIan Continued page 76 considering surfaces seem move over time depending environmental conditions heat cold moisture Some favored bases solid laminated doors As item exercise its best can pick specific example flat edge edge corner corner Just because its laminated doesnt mean its flat Also seconds rejects will serve nicely theyre cheaper flatness care about Right now Im using door Ive covered sheet cork Its supported two filing cabinets has drawer tools suspended underneath setup worked well first time used it started shift needed means adjusting surface Moving supports provided gross adjustment settled covering surface /4-in sheet glass am now able shine surface true playing cards just before actually use Also can tack structures surface thin glue clean later knife blade Reference lines board underneath can easily seen through glass very serviceable combination recommend highly Just dont skip means get back flat Thats need straightedge reference point Before move away building surfaces another approach special application foam wings first started doing own Ibam surfaces getting mixed results Sometimes good surfaces sometimes acceptable Lou Dudka helping wouldnt have made progress him After discussing length cause inconsistency appeared surface cutting settled same type surface Lou using large foam block four feet side foam supplier cut face true selected best surface though surfaces cut huge hot wire jig surface really flat protect surface covered /8-in plate glass answer inconsistencies Id experienced surface now cut true sheeted fiat Its important note over long term surface has remained fiat since material virtually inert Lets get building point Im gong tell old ways building wings pinning ribs edges true surface gluing up removing dont work Obviously simple use take care experience however foolproof just prefer expend time energy surface will correct course Im focusing built-up wings rather foam construction far best jig setup built-up wings probably also simplest heart system two 3/s-in hard aluminum tubes approximately 60 inches length tubes have true ie bends material readily available local metal suppliers base jig approximately foot five feet 3/4-in thick Plywood best composition acceptable will also need four upright pieces foot square support tubes upright pieces must equal height top parallel bottom two critical dimensions jig Screw glue uprights base inner two supports centered 18 inches separation outer supports jtist short ends setup will easily accommodate 60-inch-plus spans Before go further have decide standard tube spacing Different people using same method seem settle somewhere between four five inches trial fit tubes top uprights Now want get fancier install wood screws bolts tubing upright beneath spot tubing rests upright posts will anchor rubber bands hold tubes j J y JJ U NEW Micro-Jet Package TO BUILD FAN POWER MODULE Enhire nrodole weidhs InSt 26 grams ounce thrust FIies models 60 90 in2 & up 3 onnoes Paokage Includes motor 3o5imah NiCd bailery wiring harness charger paris complete irsirooilOns build ion unit Serd 5i $1995 P&Hin Coining high-tech fe pr m 4 . 9 4 hihlncn1j pr Ifs] 4 PERFECT E f ISA QUICK DRY WHITE PRIMER Perfect Prime dries flat white providing excellent base coat will distort critical color matches Perfect Prime intensifies true color depth Primes surface wood fiber glass plastic metal paper fabric coverings Sands easily p~acheveronhobbyaproductsu PO Box 2480 usky Ohio 44870 419 797-22S8 AVIATION CfIlISTMAS GIETS SALE FVALUABLE COUPON Flying paper CORSAIR Procut/colored W/MOTOR $4 2 $6t Pre colored GIFT gliders ckers & envelopes I12/$3 24/$5j CATALOG t3000 planes $10 Refundable what order over $25l IPAPERAIRPLANE club $1500_I PAPER AIRPLANESI K 433NIHOASTREET AHULUI HI 96732 USA kenl t4arco April 1992 177 HTSYSTEMS-~ THE BEST IN ELECTRIC FLIGHT specIahzirlg ASTRO FLIGHT SYSTEMS sales & drStrrSutiOn sWE CATER TO ThE ELECTRIC FLYER EXPERT 50 ears orRCEperei0neassrerecrrorsflreoorrnoeroasssr AOVISEye rr nrreeds WRY PAYOenorr ToeS orra roroinsi SeGa MORE FASTEST SELIVERY 0 Tn Ma 000ra Fpress LARGEST STOCK OF ELECTRIC FLIGHT EQUIPMENT IN THE NORTHEAST Cararog USA Foreign 5600 V SA S Master Card Cs FUGHT SYSTEMS IRM S Spiel 31 Perry Srreel esoro IdA 00346 Phone 508 540 2805 65 PM Evenings07 PM Weekends CTRICS ARE NOW ERS ONLY 1-800-446-FLYE upright prcfer per post because doesnt preSstlre ribs Next cut notch inner uprights just forward tube resting points will allow spars may choose About two inches deep forward edge will plenty should complete whole dealtwo tubes attached four uprights held parallel other uprights rubber bands use jig lay out rib templates start tip rib Take template tube spacing laid out four live inches position centerline rib forward tube just aft spar aft tube location will line up centerline Now take root rib line up trailing edge relative tip Align centerlines both ribs mark tube locations through tip root template procedure will work straight swept forward trailing edges wings dihedral refer Al Rabes plan sets has guide lay out holes jig works well ee$rX//a/ Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RC Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 wing types provided lay out holes properly Some thoughts cutting holes like take time use 31s-in brass tubing end sharpened punch hole individually Use rib templates guide punch out blanks have enough assemble stack rib blanks between blanks short pieces 3/g brass tube carve Out ribs Note accuracy wing depends relationship templates 3/8-in holes Centerlines holes Inust line up its snap Carefully slide ribs Onto tubes stack way its easier move ribs cracking Drop rib time get approximate location will need Mount tubes rubberbands semi-finalize spacing Lay spars leading trailing edges depending construction dont glue yet Check alignment again see tubes straight sight down interiors Youll surprised see can determine variance little few thousandths inch need make slight correction try 1/64 ply shims Note corrections straighten tubes take account base may have bowed over time thing watch tubes control centerline ribs check tube stations level dont get too far out little tweak thats needed usually try build whole wing first alignmentexcept bottom planking ready simply undo rubberbands flip over point should re-check re-tweak tube alignment Complete wing youll have super true wing thing havent mentioned yet use heavy rubberbands holders will hit tubes times during course construction thin bands will permit some flex heavy ones wont What will give ribs Next month Ill talk about fuselage jigs Word Caution noticed Klotz marketing Prope fuel additive As PREFLIGHT TIE DOWN Heavy duty safety tie down Gray Brothers start up idling size fits models quarter scale Big Birds down Only $1 650 plus $550 shipping & handling combination soft fuel resistant foam padding - heavy gage steel make unit valuable preflight tools Send check money order Gray Brothers Stamping & Machine Inc 424 West Chicago Road White Pigeon MI 49099 BOX 7531-TACOMA WA 98401 SINCE 1981 know ingredient has used years igniter fuels does work well commercial fuels use ito 2% some competition fuels like Carrier use considerably Ive sometimes used much 4% help stumbling engine cool conditions Btit extremely cautious becatlse ad points out Prope boils off around 4fl0 Fahrenheit bad experience once ice chest car ice melted over period time metal can expanded causing some gas enter closed car dont want happen use mix fuel home use charcoal-filter mask prevent breathing vapors Corrections issue reporting FAI Team Trials engines used Bill Werwage Bob Hunt OPS-40 SPP OS 40s ombat/Johnson Continued page 77 Thats what timer saw other timer will likely say Oh well t just missed official scores three cuts timer still knows saw four begins wonder hes asked help judgement trusted Having people stand around circle various vantage points may indeed allow cuts seen problem 178 Model Aviation Original Home Machine Shop Designed USA Shoptask I3 Models Choose As Low As 9959 3 Axis Power Feed Aoailable 12 MontIl Wa,Aflts 15500 Pats Toolieg Anal able 17 Swing 11 18 Miii Table 1-800-343-5775FREE CATALOGUE DONT GET STUCK WITH CHINESE COPIES