Pylon Racing LAST MONTH stated would talk about Quickie 500 racing would like regress just bit l/2A racing mention Dick Russ Allied Models bringing out new l/2A racer called l/2A Streaker able look prototypes little speedster impressed its appearance Dick mentioned flown three prototypes before being satisfied performance plane very clean semi-cowled engine spinner uses Ace foam wing all-balsa tail fuselage /2A Streaker will sell under $2000 very reasonable price considering cost balsa days Now Quickie 500sthis another one-class type Pylon racing getting popular year again airplane average mod eler pilot can build fly great deal time money expended Q-500 developed Glenn Spickler Bakersfield Calif past presi dent NMPRA two years running Glen saw need standard class rac ing get new people involved Pylon So came up 40 cu front rotor powered airplane 500 sq wing area constant chord constant thick ness box fuselage no cowl engine must out breeze least two wheels After Glenn set pace sev eral manufactures have developed Q-500s fit rules average kit sells $3500 $5000 depending goodies included kit Q-500 class uses same basic course Formula requires same number personnel run contest includes four 4 flagmen pylon #1 chief pylon judge #1 flagman pylon #2 pylon #3 Four 4 lap counters chief lap counter onel starter two three people registration heat make-up adds up 15 16 people Obviously have convince club members racing great order get help Lets look little closer Q-500 air plane idea keep simple wing conventional construction using either symmetrical semi-symmetrical airfoils strip ailerons Remember constant chord thickness must 15% chord popular de signs now use have wing mounted bottom fuselage stab mounted flush top fuselage fuselage nothing two 1/8 3/16 balsa sheets three four bulk heads 1/8 sheet top bottom firewall should 1/4 three five ply ply wood epoxied place fin rudder stab elevators made 1/4 medium hard balsa landing gear either mounted fuselage wing Dave Lane usually 5/32 wire fairings Fairings faster trouble Wheels have 2/4 diameter must least two ex ternally mounted No wheels mounted within fuselage funny FAI birds Most Q-500s covered Monokote-type covering materials keep weight down minimum 3 lbs Bakersfield Calif group al lows Spickler 500 K& B 40 front rotor combination races Other areas Southern Calif allow 40 front rotor groups require engine muffled accordance AMA guide lines Usually hosting Charlie Shaw holds aloft Keith Davidsons Rossi-powered D&S Rickey Rat QuarterMidget racer identification flagger scatter pylon Pilot Davidson kneeling 1975 Nats club sponsors contest will supply fuel 10% 12% nitro allowed run pressure special props less keeps airplanes same ball park competitively So going win have out fly other guy type competition really sharpens skills sticks really doesnt matter fast go its close competition makes exciting race both partic ipants spectators know after some exciting races have beat Its old spirit competition gets hooked Besides fact Q-500 twice big l/2A also uses four chan nels flying have have throttle rotating barrel carburetor able idle engine Also very dif ficult fly Q-500 airplane just rudder elevator might get aileron elevator doubt whether would able ROG rules state must ROG Without rudder airplane will make 900 left turn im mediately after handler releases plane So Q-500 requires full house radio means money would think average modeler wants race already has 4- 5channel radio weekend bomb Q-500 actually easier fly continued page 102 May1976 17 IR-lA Available 3 SizesAll featuring Hi-Strength EpoxyGlass fuselages super lightweight foam wing cores Formula 19 oz fuselage check cowl canopy joined lightweight wheelpants plywood parts foam wing cores plans 3-views instructions$4995 Quarter Midget6 oz fuselage cheek cowl canopy plywood parts foam wing cores plans 3-views structions Wheel pants available$2995 1/2A2-1/2 oz fuselage molded firewall foam wing cores plywood parts plans 3-views instruc tions$2295 Wheel PantsLightweight already joined Formula 15649 pair Quarter Midget$495 pair Epoxy-Glass 500Complies Club 500 Sport Pylon Rules Super strong epoxy glass fuselage 6-1/2 oz plywood parts foam cores plans instructions $4395 sheeted cores$5595 fuse/age on/y$289S LLS IG RTS 313 287-9320 20620 Emmett Taylor Ml 48180 prices FOB Detroit Dealer inquiries invited Shipping Costs $125 per order SEE US AT TOLEDO FF Indoor/Tenny continued page 42 fieldthe motor-stick must re placed strengthened tail boom too weak stab may wander re verse tilt stab slightly twisted may fly reverse tilt Either way stab twisted flight loads tend increase tilt proper direction model may usable Try warping bending stab spars produce pro per twist Left-Thrust The best way get leftthrust plan model built almost necessary use double thrust bearing bent wire can usually bent change thrust angle during test flying one-piece types made aluminum similar materials must cut looseand re-glued model has single thrust bearing field repairs adjustments can made running short length wire through fuselage prop shaft pushed sideways produce left thrust Fig 4 Later thrust angle can 1 FIG 4 noted duplicated double bearing address PO Box 545 Richard son Tex 75080 Safe Flying No Accident l/2A ships especially wind contend added weight plus increased area additional controls make easier stay out get out trouble Lets talk bit about thing hang front silly thing make go Eighty percent Q-500 racing rules state engine must absolutely stock out box must use carburetor comes engine must RC type Some clubs go far limit engine specific manufacturer such K&B 40 front rotor Perry Carb After purchase hunk alumi num carefully disassemble inspect thoroughly minute chips etc might inside todays method 6f mass production quality control spectors have hard time finding thing wrong engine Clean up burrs nicks find case crank sure piston fits accord ance manufactures specifications Check rod alignment fit rod should straight minimum sloppiness wrist pin crank pin Reassemble engine carefully Use light machine oil during process protect moving parts Never turn dry enginethis will damage lean run Torq head bolts case bolts evenly So same thing carburetor important check carb body rotating barrel foreign material Adjust carb per instructions fine tune after engine running next major item propeller Q-500 cannot modify prop So purchase prop very selec tive Especially notice hub sure flat both front rear surfaces hole center true hub surfaces. finish off front end areas al low spinner no cowls dont use spinner AMA prop nut must used Use spinner can really help Nowgo hobby shop buy Q-500 go race Now have pretty well covered virtues Q-500 would like men tion memo about replacement balsa Thats rightreplacement balsa company called Envoy Corp Phoenix Ariz promoting product called allsa quote memo cost should half less half current balsa prices Product quality should uniform high no flaws such warps knots ir regular density checks spits worn holes Characteristics other just den sity can specified programmed production Formed sheets will hold shape sheets blocks unlimited demension die-cut multicolored printed parts will put crunched stained balsa look shame know sounds too good true want try product get additional information write Envoy Corp PO Box 15917 Phoenix Ariz 85060 Keepem flying go fast turn left address 4477 136th Hawthorne Ca 90250 102 Model Aviation RC Pylon/Lane continued page 77 PYLON RACERS Accu-Boerd40 s 12 s 2 8 easy adjust brack ets hardwood construction perfect fuselage build ing board $3295 extra brackets $395 pair
Edition: Model Aviation - 1976/05
Page Numbers: 17, 102
Edition: Model Aviation - 1976/05
Page Numbers: 17, 102
Pylon Racing LAST MONTH stated would talk about Quickie 500 racing would like regress just bit l/2A racing mention Dick Russ Allied Models bringing out new l/2A racer called l/2A Streaker able look prototypes little speedster impressed its appearance Dick mentioned flown three prototypes before being satisfied performance plane very clean semi-cowled engine spinner uses Ace foam wing all-balsa tail fuselage /2A Streaker will sell under $2000 very reasonable price considering cost balsa days Now Quickie 500sthis another one-class type Pylon racing getting popular year again airplane average mod eler pilot can build fly great deal time money expended Q-500 developed Glenn Spickler Bakersfield Calif past presi dent NMPRA two years running Glen saw need standard class rac ing get new people involved Pylon So came up 40 cu front rotor powered airplane 500 sq wing area constant chord constant thick ness box fuselage no cowl engine must out breeze least two wheels After Glenn set pace sev eral manufactures have developed Q-500s fit rules average kit sells $3500 $5000 depending goodies included kit Q-500 class uses same basic course Formula requires same number personnel run contest includes four 4 flagmen pylon #1 chief pylon judge #1 flagman pylon #2 pylon #3 Four 4 lap counters chief lap counter onel starter two three people registration heat make-up adds up 15 16 people Obviously have convince club members racing great order get help Lets look little closer Q-500 air plane idea keep simple wing conventional construction using either symmetrical semi-symmetrical airfoils strip ailerons Remember constant chord thickness must 15% chord popular de signs now use have wing mounted bottom fuselage stab mounted flush top fuselage fuselage nothing two 1/8 3/16 balsa sheets three four bulk heads 1/8 sheet top bottom firewall should 1/4 three five ply ply wood epoxied place fin rudder stab elevators made 1/4 medium hard balsa landing gear either mounted fuselage wing Dave Lane usually 5/32 wire fairings Fairings faster trouble Wheels have 2/4 diameter must least two ex ternally mounted No wheels mounted within fuselage funny FAI birds Most Q-500s covered Monokote-type covering materials keep weight down minimum 3 lbs Bakersfield Calif group al lows Spickler 500 K& B 40 front rotor combination races Other areas Southern Calif allow 40 front rotor groups require engine muffled accordance AMA guide lines Usually hosting Charlie Shaw holds aloft Keith Davidsons Rossi-powered D&S Rickey Rat QuarterMidget racer identification flagger scatter pylon Pilot Davidson kneeling 1975 Nats club sponsors contest will supply fuel 10% 12% nitro allowed run pressure special props less keeps airplanes same ball park competitively So going win have out fly other guy type competition really sharpens skills sticks really doesnt matter fast go its close competition makes exciting race both partic ipants spectators know after some exciting races have beat Its old spirit competition gets hooked Besides fact Q-500 twice big l/2A also uses four chan nels flying have have throttle rotating barrel carburetor able idle engine Also very dif ficult fly Q-500 airplane just rudder elevator might get aileron elevator doubt whether would able ROG rules state must ROG Without rudder airplane will make 900 left turn im mediately after handler releases plane So Q-500 requires full house radio means money would think average modeler wants race already has 4- 5channel radio weekend bomb Q-500 actually easier fly continued page 102 May1976 17 IR-lA Available 3 SizesAll featuring Hi-Strength EpoxyGlass fuselages super lightweight foam wing cores Formula 19 oz fuselage check cowl canopy joined lightweight wheelpants plywood parts foam wing cores plans 3-views instructions$4995 Quarter Midget6 oz fuselage cheek cowl canopy plywood parts foam wing cores plans 3-views structions Wheel pants available$2995 1/2A2-1/2 oz fuselage molded firewall foam wing cores plywood parts plans 3-views instruc tions$2295 Wheel PantsLightweight already joined Formula 15649 pair Quarter Midget$495 pair Epoxy-Glass 500Complies Club 500 Sport Pylon Rules Super strong epoxy glass fuselage 6-1/2 oz plywood parts foam cores plans instructions $4395 sheeted cores$5595 fuse/age on/y$289S LLS IG RTS 313 287-9320 20620 Emmett Taylor Ml 48180 prices FOB Detroit Dealer inquiries invited Shipping Costs $125 per order SEE US AT TOLEDO FF Indoor/Tenny continued page 42 fieldthe motor-stick must re placed strengthened tail boom too weak stab may wander re verse tilt stab slightly twisted may fly reverse tilt Either way stab twisted flight loads tend increase tilt proper direction model may usable Try warping bending stab spars produce pro per twist Left-Thrust The best way get leftthrust plan model built almost necessary use double thrust bearing bent wire can usually bent change thrust angle during test flying one-piece types made aluminum similar materials must cut looseand re-glued model has single thrust bearing field repairs adjustments can made running short length wire through fuselage prop shaft pushed sideways produce left thrust Fig 4 Later thrust angle can 1 FIG 4 noted duplicated double bearing address PO Box 545 Richard son Tex 75080 Safe Flying No Accident l/2A ships especially wind contend added weight plus increased area additional controls make easier stay out get out trouble Lets talk bit about thing hang front silly thing make go Eighty percent Q-500 racing rules state engine must absolutely stock out box must use carburetor comes engine must RC type Some clubs go far limit engine specific manufacturer such K&B 40 front rotor Perry Carb After purchase hunk alumi num carefully disassemble inspect thoroughly minute chips etc might inside todays method 6f mass production quality control spectors have hard time finding thing wrong engine Clean up burrs nicks find case crank sure piston fits accord ance manufactures specifications Check rod alignment fit rod should straight minimum sloppiness wrist pin crank pin Reassemble engine carefully Use light machine oil during process protect moving parts Never turn dry enginethis will damage lean run Torq head bolts case bolts evenly So same thing carburetor important check carb body rotating barrel foreign material Adjust carb per instructions fine tune after engine running next major item propeller Q-500 cannot modify prop So purchase prop very selec tive Especially notice hub sure flat both front rear surfaces hole center true hub surfaces. finish off front end areas al low spinner no cowls dont use spinner AMA prop nut must used Use spinner can really help Nowgo hobby shop buy Q-500 go race Now have pretty well covered virtues Q-500 would like men tion memo about replacement balsa Thats rightreplacement balsa company called Envoy Corp Phoenix Ariz promoting product called allsa quote memo cost should half less half current balsa prices Product quality should uniform high no flaws such warps knots ir regular density checks spits worn holes Characteristics other just den sity can specified programmed production Formed sheets will hold shape sheets blocks unlimited demension die-cut multicolored printed parts will put crunched stained balsa look shame know sounds too good true want try product get additional information write Envoy Corp PO Box 15917 Phoenix Ariz 85060 Keepem flying go fast turn left address 4477 136th Hawthorne Ca 90250 102 Model Aviation RC Pylon/Lane continued page 77 PYLON RACERS Accu-Boerd40 s 12 s 2 8 easy adjust brack ets hardwood construction perfect fuselage build ing board $3295 extra brackets $395 pair
