CONTROL LINE RACING i q34'rIiuh SINGLE-BLADE PROPELLERS Bob Oge have using single-blade propellers exclusively FAL Team Race last five years have lot success type propeller surprising us no other teams use regular basis never see props two blades FAI Speed models days does mean blade faster efficient two Speed guys use aesthetic reasons match asymmetric models rationale single-blade propeller basically high rpm blade gets cleaner bit air two blades following other 1800 apart single blade effectively 3600 behind preceding blade time comes around again has advanced relatively undisturbed air ahead turbulence caused blade passage greater efficiency obvious considers single-blade prop can produce same airspeed less 75% combined area two-blade prop same pitch first tried propellers naturally hoping increase speed didnt see can go just fast two blades However very significant difference greatly reduced tendency engine sag model held back flown around top circle definite advantage hard race few tenths faster competition competition either lot taller experienced enough know block Most teams use setting requires pilot keep up model ie whip unobtrusively well good until get stuck behind some oaf rpm falls off slow speed Nelson days everything squeezed down knew get out situation quickly terminal burn-down would set new-generation Russian engines less susceptible scenario can still get trouble post slow time have found model equipped single-blade propeller keeps going cant get arm generally relieves pilot much responsibility maintaining setting racing traffic easier downside course swinging maybe inch diameter landing gear needs hang 1/2 inch farther breeze weight along ride have major problems vibration once got blade shape right bearing failure range however Also buzzing tip off takeoff leads no worse situation get two-blader balance thrown off much might think thing found essential metal-hub propeller need drive pin prop driver now use system universally has benefit ensuring propeller always bolted correct position starting Finishing am frequently asked about procedure use finish models Starting bare wood what First whole model covered 75-ounce glass cloth doped Hobbypoxy clear paint/Quick-spray hardener nose tailskid areas wing/fuselage joint leading edge outboard wing get two layers like cover wing halves single piece cloth wrapped around leading edge allows cloth applied simultaneously upper lower surfaces increments find reduces chance warping trailing edge dry flash trimmed edges surfaces lightly sanded two coats Hobbypoxy clear sprayed sanding between coats careful avoid cutting through glass finish colored rather clear next shoot coat either Hobbypoxy Super Poxy primer primer heavy should mostly sanded off best wait 140 Model Aviation oughbylOge FAI Team Race propeller brass counterweight blank prop driver drive pin rounded prop nut Tufkote Aerokote UK highly recommended quick way apply AMA number Use fine permanent clear finish models See text supplier marker draw around plastic numbers hardware store least week before doing layers epoxy paint take long time fully harden want grain filled completion stage proceed too quickly finish will settle later Just coat color sprayed very lightly sanded partially remove gloss Decals rub-on lettering ink lines etc applied next followed several final clear coats photos shows quick effective way apply AMA number using plastic house numbers hardware store Thin strips masking tape applied underside number spacer followed several pieces double-stick tape Keep tape away edges number can temporarily stuck place drawn around fine permanent marker apply rub-on lettering denting wood must start fresh newly purchased sheet rather old sheet letters Tape carrier sheet position wing placing pieces masking tape along edge Lift sheet off surface holding position rub firmly over letter number blunt #2 pencil until see begin separate carrier sheet will start look opaque Now lay sheet back down wing rub gently transfer letter Lift sheet slightly facilitate transfer Multiple light strokes will work have take time As soon letter has transferred remove carrier sheet cover letter protective backing sheet thoroughly gently burnish letter down final clear finishing coats over epoxy paint always use either Tufcote Ripmax Aerocote Deluxe Materials UK see photo different brands same material available USA see below unconditionally recommend stuffit joy use compared clear epoxy material always levels well sprayed less likely raise rub-on letters decals never develops fisheyes dry ten minutes can sanded out recoated less two hours Unlike epoxy very easy polish rubbing compound dust particles overspray worry during application Finally Tufcote Aerocote 100% fuelproof unaffected pure nitromethane source supply Aerocote Bagnalls Models Staffordshire UK Call dialing direct 011 441785 223349 give order Visa number Cost about $5 plus shipping five-ounce bottle SVSrEA4 BPArJO EPOXY Custom blend event batch meet specific application Resin Four Hardeners Seven Fillers THE SOLID SOLUTION Send $5 Product Guide Technical Manual CST Price List Sale Announcement Composite Structures Technology P0 Box 642 Dept JM Tehachapi CA 93581 Order Desk 1-800-338-1278 .IMLi uN TEE DEE & REED ENGINES 010S 020S 049S 051S 074S & 09S ALL CUSTOM AND STOCK PARTS ARE AVAILABLE INDIVIDUALLY S Am6SI COMPETITION ACCESSORIES RACING WHEELS KLOTZ OIL SOLID CONTROL LINES THREE BRANDS OF GLOW PLUGS HARD-TO-FIND HARDWARE OLD TIMER SUPPLIES COILS CONDENSERS PLUGS SILK QUALITY DOPE BRUSHES 5 & 7 LOOP 114 GUM BANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HI TENSION LEADS 112A TEXACO PLAYBOY SR KIT MAIL OR PHONE 619 725-4365 VISA IMC WELCOME NO COD MINIMUM ORDER $1000 PLUS JIDOII Alao Available Roto Finish Stiletto Color Tile P-Si Sky Harbor R/C Fine Woods 1-800-279-2871 July 1996 141 AC 2 0 00 cr1 C 0 0 0 0 0 0 N C o0 0~4J0 a-0 -CT 0 0 0 0 0 mg ot0 t u 1 Ge .00 L o o 100 F a0 QQQQQQQ CUSTOM o ELECTRONICS LEGAL BARON Engine 60-120 511/2 Decais available Call info pack WHA0PACE PLANE Engine High Performance 40 48 56 AR Whi Pnk SWRA LEGAL RJ P-51 Engine 60-120 511/2 Decals available Call info pack
Edition: Model Aviation - 1996/07
Page Numbers: 140, 141
CONTROL LINE RACING i q34'rIiuh SINGLE-BLADE PROPELLERS Bob Oge have using single-blade propellers exclusively FAL Team Race last five years have lot success type propeller surprising us no other teams use regular basis never see props two blades FAI Speed models days does mean blade faster efficient two Speed guys use aesthetic reasons match asymmetric models rationale single-blade propeller basically high rpm blade gets cleaner bit air two blades following other 1800 apart single blade effectively 3600 behind preceding blade time comes around again has advanced relatively undisturbed air ahead turbulence caused blade passage greater efficiency obvious considers single-blade prop can produce same airspeed less 75% combined area two-blade prop same pitch first tried propellers naturally hoping increase speed didnt see can go just fast two blades However very significant difference greatly reduced tendency engine sag model held back flown around top circle definite advantage hard race few tenths faster competition competition either lot taller experienced enough know block Most teams use setting requires pilot keep up model ie whip unobtrusively well good until get stuck behind some oaf rpm falls off slow speed Nelson days everything squeezed down knew get out situation quickly terminal burn-down would set new-generation Russian engines less susceptible scenario can still get trouble post slow time have found model equipped single-blade propeller keeps going cant get arm generally relieves pilot much responsibility maintaining setting racing traffic easier downside course swinging maybe inch diameter landing gear needs hang 1/2 inch farther breeze weight along ride have major problems vibration once got blade shape right bearing failure range however Also buzzing tip off takeoff leads no worse situation get two-blader balance thrown off much might think thing found essential metal-hub propeller need drive pin prop driver now use system universally has benefit ensuring propeller always bolted correct position starting Finishing am frequently asked about procedure use finish models Starting bare wood what First whole model covered 75-ounce glass cloth doped Hobbypoxy clear paint/Quick-spray hardener nose tailskid areas wing/fuselage joint leading edge outboard wing get two layers like cover wing halves single piece cloth wrapped around leading edge allows cloth applied simultaneously upper lower surfaces increments find reduces chance warping trailing edge dry flash trimmed edges surfaces lightly sanded two coats Hobbypoxy clear sprayed sanding between coats careful avoid cutting through glass finish colored rather clear next shoot coat either Hobbypoxy Super Poxy primer primer heavy should mostly sanded off best wait 140 Model Aviation oughbylOge FAI Team Race propeller brass counterweight blank prop driver drive pin rounded prop nut Tufkote Aerokote UK highly recommended quick way apply AMA number Use fine permanent clear finish models See text supplier marker draw around plastic numbers hardware store least week before doing layers epoxy paint take long time fully harden want grain filled completion stage proceed too quickly finish will settle later Just coat color sprayed very lightly sanded partially remove gloss Decals rub-on lettering ink lines etc applied next followed several final clear coats photos shows quick effective way apply AMA number using plastic house numbers hardware store Thin strips masking tape applied underside number spacer followed several pieces double-stick tape Keep tape away edges number can temporarily stuck place drawn around fine permanent marker apply rub-on lettering denting wood must start fresh newly purchased sheet rather old sheet letters Tape carrier sheet position wing placing pieces masking tape along edge Lift sheet off surface holding position rub firmly over letter number blunt #2 pencil until see begin separate carrier sheet will start look opaque Now lay sheet back down wing rub gently transfer letter Lift sheet slightly facilitate transfer Multiple light strokes will work have take time As soon letter has transferred remove carrier sheet cover letter protective backing sheet thoroughly gently burnish letter down final clear finishing coats over epoxy paint always use either Tufcote Ripmax Aerocote Deluxe Materials UK see photo different brands same material available USA see below unconditionally recommend stuffit joy use compared clear epoxy material always levels well sprayed less likely raise rub-on letters decals never develops fisheyes dry ten minutes can sanded out recoated less two hours Unlike epoxy very easy polish rubbing compound dust particles overspray worry during application Finally Tufcote Aerocote 100% fuelproof unaffected pure nitromethane source supply Aerocote Bagnalls Models Staffordshire UK Call dialing direct 011 441785 223349 give order Visa number Cost about $5 plus shipping five-ounce bottle SVSrEA4 BPArJO EPOXY Custom blend event batch meet specific application Resin Four Hardeners Seven Fillers THE SOLID SOLUTION Send $5 Product Guide Technical Manual CST Price List Sale Announcement Composite Structures Technology P0 Box 642 Dept JM Tehachapi CA 93581 Order Desk 1-800-338-1278 .IMLi uN TEE DEE & REED ENGINES 010S 020S 049S 051S 074S & 09S ALL CUSTOM AND STOCK PARTS ARE AVAILABLE INDIVIDUALLY S Am6SI COMPETITION ACCESSORIES RACING WHEELS KLOTZ OIL SOLID CONTROL LINES THREE BRANDS OF GLOW PLUGS HARD-TO-FIND HARDWARE OLD TIMER SUPPLIES COILS CONDENSERS PLUGS SILK QUALITY DOPE BRUSHES 5 & 7 LOOP 114 GUM BANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HI TENSION LEADS 112A TEXACO PLAYBOY SR KIT MAIL OR PHONE 619 725-4365 VISA IMC WELCOME NO COD MINIMUM ORDER $1000 PLUS JIDOII Alao Available Roto Finish Stiletto Color Tile P-Si Sky Harbor R/C Fine Woods 1-800-279-2871 July 1996 141 AC 2 0 00 cr1 C 0 0 0 0 0 0 N C o0 0~4J0 a-0 -CT 0 0 0 0 0 mg ot0 t u 1 Ge .00 L o o 100 F a0 QQQQQQQ CUSTOM o ELECTRONICS LEGAL BARON Engine 60-120 511/2 Decais available Call info pack WHA0PACE PLANE Engine High Performance 40 48 56 AR Whi Pnk SWRA LEGAL RJ P-51 Engine 60-120 511/2 Decals available Call info pack