RADIO CONTROL PYLON RACING U r GOT SOME pictures again month Thats good news bad news supply myself Some folks have face made radio have photographic skills made writing photo shows sideline judging/signal light system described race report appeared last month Time/space coordinates Longmont Colorado June 6 1999 Note absence barrier cages course folks out pilots callers plus starter Note also halogen signal lights Pylon has just switched clearly visible broad daylight light appears bright dot photo just above arrow aircraft has just turned Pylon visible upper left four signal lights arranged horizontal row colorcoded translucent plastic enclosed six-foot-long box thats perched small trailer use haul equipment 1 lOV generator control relays bed trailer hope have closeup photos diagrams upcoming column setup may ideal clubs fields works appears work well Spars Tailfeathers other photos construction hints n kinks have come up season fly prefab airplanes may have noticed skin hinges becoming norm Thats fiberglasscovered wing tail assembled solid piece slot carefully cut routed out side leaving glass skin intact other side act hinge looks neat works well However isnt perfect solution least two reasons axis rotation isnt centerline youre driving surface torque rodwhose axis rotation near centerlineit will inevitably start bind feed deflection racing airplanes dont usually need much deflection can talk ourselves thinking theres no problem Usually surface tapered toward tip horizontal vertical stabilizer combination taper flexing will make skin hinge bind fatigue split tip Again thats because hinge skin skin doesnt run straight way tip Again left either ignoring problem using temporary solution such piece plastic tape over split part decided go back Square come up better solution consists laminating sandwich very light four- six-pound balsa four-ounce fiberglass cloth epoxy resin between balsa half thickness would normally use k horizontal stabilizer used two layers /s balsa width four inches main nonmoving part ahead hingeline two inches wide movable part behind hingeline gives overall chord six inches plenty Quickie Q40 model necessary hinge gap made inserting 1A2 spacers between edges four-inch-wide two-inch-wide slabs cant actually touch edges have cut straight width gap remains uniform have tools rout out slot afterwards cutting glass can skip step photo shows end piece raw tail-surface stock thats made way untrimmed edges glass cloth protrude between balsa slabs cut glass cloth bias fibers running 450 relation bingeline way reasoned would have less resistance bending along bingeline resistance lateral displacement along hingeline works Once stock made can cut tail surfaces shape iteven elliptical shapes like muchand will always have rigid sand-to line edge having slot insert plywood CF carbon fiber youre done sanding can just stick model dont have worry about cutting hinge slots inserting hinges getting just right amount glue safetying toothpicks etc lamination process can done weighting assembly down flat bench using bricks low-tech method vacuum-bagging high-tech method opt high-tech method put some bricks top anyway keep perfectly flat Otherwise vacuum pressurewhich works 114 Model Aviation te signaling/sideline judging system use see text Arrow indicates Pylon #1 signal light Lightweight composite 040 spar assembly fixture topCloseup outboard end 040 spar Aluminum tubing permits prehinged balsa tail surface stock belowplug-in tip feature ease travel sidesmay squoosh together hingeline ways dont like Been Also shown lightweight bulletproof full-depth spar insertion foam Q40 wings together assembly fixture made ensure height spar exactly fills allotted space between top bottom skins fixture consists two 79-cent yardsticks Ace Hardware placed correct distance apart glued base board spar consists very hard 1/ balsa grain running vertically capped Darrol Cadys fancy sticksa 29-inch-long /32 diameter CF tube acts compression member assist top wing skin tAs balsa light glass cloth top bottom handling astronomical C loads Q40s generate turn Tension loads bottom wing taken strip one-inch-wide 50000-strand CF tow running along bottom spar least same distance CF tube top Its impregnated epoxy resin installed same time bottom wing skin either 1/16 balsa bias-cut four-ounce fiberglass cloth photo shows closeup outboard end spar just prior final assembly fixture last six inches consist mix materials i/is OD aluminum tubing above below filler/web 3/~ medium balsa quite strong CF/vertical-grain balsa I-beam nearer center offers unique advantage should ever take notion chop tips off 56-inch wing transport Zona saw will go neatly through finished wing aluminum tubes get yourself two six-inch sections Darrols fancy sticks slip inside tubes plug wing back together wrap clear plastic tape trailing edge around leading edge back trailing edge restores unity wing Im off Nats now Look fullcolor coverage next months issue BATTERY TOOL fietd box tool 4 9 cell batte pscks Use voltmeter loaded voltmeter check packs chacge Use discharge pack read its capacity Unit discharges 300 ma auto shut-offal llv per cell Cycles packs charging Battery Tool $5895 4-pc Universal Cord Set $1595 Add $5 5&H FREE shipping order both DEMOUNTABLE HINGE Demountable easy Construction Finishing Repair 1/4 inch T Fourmost Demountable Hinge gapless Nylon hinge allows modeler easily remove control surfaces model 1/32 inch piano wire holds Hinge place Hinge may installed easily CA adhesives Hinge sold packages 12 6 inch segments sufficient span 3 feet hinge Although manufactured white Hinge may dyed painted match finish hinge deflects plus minus 45 degrees Product No 141 FOURMOST PRODUCTS Look other great products Fourmost nearest hobby dealer direct orders include $450 shipping 4040 24th Avenue Forest Grove OR 97116 Phone/Fax 503 357-2732 Internet wwwtourmostcom email rcooney@ntrnet Price 3 ft $550 November1999 115 Correction Grand Event report October issue MA incorrectly listed Lonnie Estep Cliff McKee Volunteer Coordinators Estep Volunteer Coordinator McKee Exhibitor Coordinator CLEVELAND MODEL & SUPPLY CO nk4J1%. ox 55962AA Indianapolis IN 46205-0962 hone 317 257-7878 Fax 317 257-7877 MODEL ENGINEERS SINCE 1919 Choose Over 1100 Plans Over 100 Aircraft Manufacturers Represented Five Aviation Eras Spanned Seven Scales Available 100-page illustrated Catalog- $500 $1000 Foreign Ieyg 1 7q ii U W51 [J5j1usl C HOBBIES FUN-BAT ARF Incredibly simple no frills affordability 37 span Fun-Bat gets combat flying fast Open box find 10 pieces put together including symmetrical foamboard wing carbon fiber boom Great club combat plane Call special deals 6 pack combos w/Magnum XL 15 major credit cards accepted Order 800-309-8314 412-795-9344 412-798-9857 J & C HOBBIES OX 17068 SBURGH PA 15235 JANTRONICS 406 727-3001 http//wwwwtpnetIDBEST/jtIjantronicshtmI
Edition: Model Aviation - 1999/11
Page Numbers: 114, 115
RADIO CONTROL PYLON RACING U r GOT SOME pictures again month Thats good news bad news supply myself Some folks have face made radio have photographic skills made writing photo shows sideline judging/signal light system described race report appeared last month Time/space coordinates Longmont Colorado June 6 1999 Note absence barrier cages course folks out pilots callers plus starter Note also halogen signal lights Pylon has just switched clearly visible broad daylight light appears bright dot photo just above arrow aircraft has just turned Pylon visible upper left four signal lights arranged horizontal row colorcoded translucent plastic enclosed six-foot-long box thats perched small trailer use haul equipment 1 lOV generator control relays bed trailer hope have closeup photos diagrams upcoming column setup may ideal clubs fields works appears work well Spars Tailfeathers other photos construction hints n kinks have come up season fly prefab airplanes may have noticed skin hinges becoming norm Thats fiberglasscovered wing tail assembled solid piece slot carefully cut routed out side leaving glass skin intact other side act hinge looks neat works well However isnt perfect solution least two reasons axis rotation isnt centerline youre driving surface torque rodwhose axis rotation near centerlineit will inevitably start bind feed deflection racing airplanes dont usually need much deflection can talk ourselves thinking theres no problem Usually surface tapered toward tip horizontal vertical stabilizer combination taper flexing will make skin hinge bind fatigue split tip Again thats because hinge skin skin doesnt run straight way tip Again left either ignoring problem using temporary solution such piece plastic tape over split part decided go back Square come up better solution consists laminating sandwich very light four- six-pound balsa four-ounce fiberglass cloth epoxy resin between balsa half thickness would normally use k horizontal stabilizer used two layers /s balsa width four inches main nonmoving part ahead hingeline two inches wide movable part behind hingeline gives overall chord six inches plenty Quickie Q40 model necessary hinge gap made inserting 1A2 spacers between edges four-inch-wide two-inch-wide slabs cant actually touch edges have cut straight width gap remains uniform have tools rout out slot afterwards cutting glass can skip step photo shows end piece raw tail-surface stock thats made way untrimmed edges glass cloth protrude between balsa slabs cut glass cloth bias fibers running 450 relation bingeline way reasoned would have less resistance bending along bingeline resistance lateral displacement along hingeline works Once stock made can cut tail surfaces shape iteven elliptical shapes like muchand will always have rigid sand-to line edge having slot insert plywood CF carbon fiber youre done sanding can just stick model dont have worry about cutting hinge slots inserting hinges getting just right amount glue safetying toothpicks etc lamination process can done weighting assembly down flat bench using bricks low-tech method vacuum-bagging high-tech method opt high-tech method put some bricks top anyway keep perfectly flat Otherwise vacuum pressurewhich works 114 Model Aviation te signaling/sideline judging system use see text Arrow indicates Pylon #1 signal light Lightweight composite 040 spar assembly fixture topCloseup outboard end 040 spar Aluminum tubing permits prehinged balsa tail surface stock belowplug-in tip feature ease travel sidesmay squoosh together hingeline ways dont like Been Also shown lightweight bulletproof full-depth spar insertion foam Q40 wings together assembly fixture made ensure height spar exactly fills allotted space between top bottom skins fixture consists two 79-cent yardsticks Ace Hardware placed correct distance apart glued base board spar consists very hard 1/ balsa grain running vertically capped Darrol Cadys fancy sticksa 29-inch-long /32 diameter CF tube acts compression member assist top wing skin tAs balsa light glass cloth top bottom handling astronomical C loads Q40s generate turn Tension loads bottom wing taken strip one-inch-wide 50000-strand CF tow running along bottom spar least same distance CF tube top Its impregnated epoxy resin installed same time bottom wing skin either 1/16 balsa bias-cut four-ounce fiberglass cloth photo shows closeup outboard end spar just prior final assembly fixture last six inches consist mix materials i/is OD aluminum tubing above below filler/web 3/~ medium balsa quite strong CF/vertical-grain balsa I-beam nearer center offers unique advantage should ever take notion chop tips off 56-inch wing transport Zona saw will go neatly through finished wing aluminum tubes get yourself two six-inch sections Darrols fancy sticks slip inside tubes plug wing back together wrap clear plastic tape trailing edge around leading edge back trailing edge restores unity wing Im off Nats now Look fullcolor coverage next months issue BATTERY TOOL fietd box tool 4 9 cell batte pscks Use voltmeter loaded voltmeter check packs chacge Use discharge pack read its capacity Unit discharges 300 ma auto shut-offal llv per cell Cycles packs charging Battery Tool $5895 4-pc Universal Cord Set $1595 Add $5 5&H FREE shipping order both DEMOUNTABLE HINGE Demountable easy Construction Finishing Repair 1/4 inch T Fourmost Demountable Hinge gapless Nylon hinge allows modeler easily remove control surfaces model 1/32 inch piano wire holds Hinge place Hinge may installed easily CA adhesives Hinge sold packages 12 6 inch segments sufficient span 3 feet hinge Although manufactured white Hinge may dyed painted match finish hinge deflects plus minus 45 degrees Product No 141 FOURMOST PRODUCTS Look other great products Fourmost nearest hobby dealer direct orders include $450 shipping 4040 24th Avenue Forest Grove OR 97116 Phone/Fax 503 357-2732 Internet wwwtourmostcom email rcooney@ntrnet Price 3 ft $550 November1999 115 Correction Grand Event report October issue MA incorrectly listed Lonnie Estep Cliff McKee Volunteer Coordinators Estep Volunteer Coordinator McKee Exhibitor Coordinator CLEVELAND MODEL & SUPPLY CO nk4J1%. ox 55962AA Indianapolis IN 46205-0962 hone 317 257-7878 Fax 317 257-7877 MODEL ENGINEERS SINCE 1919 Choose Over 1100 Plans Over 100 Aircraft Manufacturers Represented Five Aviation Eras Spanned Seven Scales Available 100-page illustrated Catalog- $500 $1000 Foreign Ieyg 1 7q ii U W51 [J5j1usl C HOBBIES FUN-BAT ARF Incredibly simple no frills affordability 37 span Fun-Bat gets combat flying fast Open box find 10 pieces put together including symmetrical foamboard wing carbon fiber boom Great club combat plane Call special deals 6 pack combos w/Magnum XL 15 major credit cards accepted Order 800-309-8314 412-795-9344 412-798-9857 J & C HOBBIES OX 17068 SBURGH PA 15235 JANTRONICS 406 727-3001 http//wwwwtpnetIDBEST/jtIjantronicshtmI