I Racing EJBiII Lee NEW RACING RULES final re suits Control Line Contest Board published just recently write few quite significant changes should aware pre paring 1978 season Ill comment few important changes First off entire section Control Line Racing rules book has re written now have general set rac ing rules called Unified Control Line Racing Rules govern AMA Racing events will go back few years will find time events referred Rat Race rules general rules Obviously cause Rat first racing events following demise AMA Class B Team Racing number years ago events since merely added some new dimension create new event few years ago subtle significant change book ties Rat broken Goodyear caused some problems over come later years gradually getting general rules spelled out Good year along came Slow Rat Again event tied itself back Rat real problem Rat changed changed events linked whether change intended whether change proper became obvious couple years ago Control Line Racing matured enough rules needed re-written order easily handle cur rent events new ones might added future Hence along came Unified Rules corresponding re structuring rules Rac ing events Until new book published youll have satisfy yourself few scraps can get yourself would strongly sug gest go back December 1976 sue Model viation read orig inal proposal CL-78-13RAC -14 RAC nearest thing book available until 78-79 book comes out Read proposal closely some very subtle changes might meet eye first reading Some well talk about below have some penalties spelled out just understood before now 3-lap penalty starting engine before starting signal Continued page 97 American-made Nelson 1 SD engine fastest time British Nats winner Bochum West Germany Utrecht Holland March 1978 37 Team Race meets throughout world hard fought well flown 1977 European Championships BugI Austria Peterson Denmark 1mev Bulgaria tie team crowd cast magnesium engine mounts See copy further details interesting engines seen 1577 European Champion ships Cipolla bar-stock engine Italian origin Another idea make planes flyable increase line length 60 ft FAIs 70 ft AMA planes extra few feet add tre mendous amount extra space fly longer lines cost bit course require room isnt generally problem grass flying sites line rake may needed too idea FAI type fuel lubricant alco hol has tried too Its OK club meet source fuel used impossible police larger scale Fox Tigre set up run FAI fuel still very fast high com pression needed extract maximum horsepower hard tune pops plugs least often nitro fuel big advantage cost fuel gal lon no nitro fuel may mixed little $300 compared $10 high nitro brews ultimate nasty medicine~ re ported last months column 60% nitro 20% propylene oxide 20% NPG oil has another side effect besides making ex cess horsepower burned hole through piston caved dome lot probably have done same thing much lower percentages nitro George Mattei has series very informative articles MACA News letter concerning engine set-up fuels well worth $6 costs join MACA MACA membership send $6 Patty Sasnett Treasurer 1443 McKinley Es condido CA 92025 Charlie Johnson 3716 San Diego CA 92109 graham St CL Racing/Lee continued page 37 given start race old rules no penalty although contest direc tors guide did say disqualification Now book spells out black-and-white course old book already listed pen alties whipping improper passing etc have retained section Rat Race pro posal December 76 issue MA advertently left out paragraphs indi cating no model restric tions wing area etc also two-part model construction follow CL Speed section method con struction have restored new book significant change will affect events diameters marked circles define pitting pilot ing limits What new circles pro vide little better margin safety allowing events utilize common set circles marked ground also allow slightly smaller total area needed put largest circle 76 ra dius rather 80 past pinch Outer Circle Rat could 75 radius rather 76 partic PRODUCT1 WING SUPPORT Spring steel 1/2 03/64 57HONG Co NAGWING CHANNEL dimension tongue two on-CENHAN ICA breakable Lexan plastic 4-walled tracks insert wings 5 Vee fuselage center section $695 PRODUCT #2 E-Z SPOILER LINKAGE Two 900 torked bellcranks wing insertion Slips deal 1 800 fuselageCELLCNANNeHONeCILEN mounted size adjustable Lexan bellcrank hardware included $395 oPRODUCTm4 PRODUCT #3FLYING STAB JOINER TUBES FLYING STABAND LOCKING ASSEMBLY Three 3/32 id brass tubes fourth BELLCRANKpermanently attached 2 long 900 legs fit both 3/32a locking brass /o music wire pivot sing 3/32 support wire Fully ribbed4-40 screw $1 anle reintorcedot Lexan $195HNO MORE LOOSE STABS IN FLIGHT KIT MODIFIERS SPECIALPACKAGE OF ALL FOUR ABOVE. $1295 S 1 12 span Clark Y airfoil 10 sq area 2 44 hap 15 spoiler bay 2 spars out tip 3 5 dihedral 50 polyhedral Two oh wing joiners installed 5 Spoiler linkage holes bellcrank bays cut 6 Sniffler antenna holes cut 7 Plywood root rib installed 8 Flying stab has locking assembly installed 9 Glue tips install spoiler blades linkage cover fIr TOTAL $19000 SAILPLANE ACESSOHY COSEND TO PO BOX 412 BARDONIANY10954PLEASE PRINT I I PRODUCT #1REPLACEMENTSiSaws Quantity . @ $695 5PRODUCT #1Address .......... PRODUCT #2Wing channels Ouantity @ $395 5-Quantity @ $195 $ciw........ Quantity 95 $.Quantity 95 $ PRODUCT #3Fuse VeeSlotsZip......... PRODUCT #4Steel tongues l purchased II Quantity @ $195 5---Quantity @ $95 $.. -NY residentu odd 4% tax KIT MODIFIERSPRODUCT #2Tntal SPECIAL @ $1295 $iso0 belicrankAdd 10% Irniehi & handilneI FFERQuantity 95 $--TOTAL 5NCLO5CO BALSA COVEREDMinimum nrder $400 FOAM WINGForked bellcrank Quantity@ $19900 $Quantity@ $ 95 $ Wing shipped treight cniiectI k March1978 97 GOOF PROOF TRIM SHEETS Ita iron-on goof re heat ft 2779 Ph man Aae Hun agdan Va eye 05 C COVERITE Pa 9006 FUEL IT FLIP IT N FLY D-Varnrshpng Brashes 020-60 Fuei Bulbs 1 2 oz 01 /2A Fani Line Assi 01/4 1 /2A Twn 0 Tef ion Rend Vaive 1.Send SASE linerasure Dealer inquiries inm5ed DIESEL CONVERTERS $995 Ask dealer add $100 p&h order direcs ICoan Res add STl Up 50% power 50% economy glow new fuel formula Diesel Fuel Pa $350 $500 $1 p&h Davis Diesel DeeIopment Inc 141 DEPTEMiLPOROCT06400 BOX HONE 12031 077-1 670 GRISH AIRCRAFT TYPE PROPELLERS Made hardwood fully carved true helical pitch airfoil ready sanding ALL SIZES INir$700 8 & 10 PITCH20800 RIGHT HAND221000 ROTATION241300 3/8 BORE AT YOuR DEALER USE TO PROPEL AIR CREATE THRUST AND BE PROPELLED BY AIR AT DISCRETION OF THE PURCHASER PROPELLERS ALL GRISH PROPELLERS ARE ENGINEERED TO TRUEHELICAL PITCH AND AIRFOIL FOR EFFICIENCY NEW COLOR. OLD PRICES 2 Blade Tractor 545/354-430d 636435 747-678SOd 84868-865d 949697 9-810-410-6 85d 11411-611-8 Si 12-412-512-6 8150 YELLOW propellers phasing out NATURAL WHITE phases Minor production savings help hold down prices Grish engineered airefficiency strength remain same either color ular site 150 put circle would have helped lot Oshkosh Nats 73 forced fly 150 runways center circle now called Pilots Circle still 5 radius big change next circle called Pitting Circle 15 radius rather 20 before out event has its own set circle radii form set Outer Circle event becomes Inner Circle another thus minimizing number circles have paint mark Racing events circle radii 5 15 48 58 68 76 Probably significant changes allow constant-diameter exhaust extension racing events ex cept Slow Rat use exhaust extension prohibited elim inates megaphones Goodyear should help event dont believe pipe really helps vast majority Goodyears theyre run anyhow True few really go worth nothing noise unre liability Good riddance Now lets see minipipe will help Running openface will bring some racers back Goodyear left noise megaphone scared off Another change going make lot people unhappy engine restric tion Slow Rat Basically change says engine must have produced 36 smaller significant parts have produced excludes head bolts needle valve venturi prop washer nut etc cludes complete crankcase including front end back end upper lower portion detachable split ex cluding ball bearings applicable engine crankshaft cylinder sleeve piston about rule will ap pear book What rule does say CLCB will have de fine what constitutes original manufacturer engine better yet what defines production engine look around at least couple sources what might call homebuilt engines use least few parts similar engine different manufacturer going legal illegal dont know sure would hate see small guy driven off rule Goodyear has couple important changes First hand-on-chest rule flying gone Second semi-final/final system also gone No longer fly 80-lap semi-finals take three best final race really would know best flight No now back 12 finals top runner turkey trot heat gets win everyone can go home grum ble Id just good heat Id have won Oh well cant win em Rat Race Slow Rat Race since tied together benefited change affects races well construction techniques final race Rat Slow Rat now has three pit stops 140 laps rather two previously What means race times next year will longer year about 10-15 sec onds Also dont have set up Rats differently now qualifying heats finals three stops 140-lap final race will four 35-lap segments rather three 47-lap pieces previously nice part qualifying heats two 35-lap seg ments can set up plane 35 laps per tank entire event rather have allow longer segments used have run Nelson Competition Products Just re ceived note Henry Nelson Nelson Competition Engines 729 Valemont Dr Verona PA 15147 current infor mation two real quality products produces FAI Team Race crowd Nelson 15D engine cast magnesium engine mounts Let quote little Henry st advertis ing has Metkmeijers fastest heat time British Nats leave catch boat didnt fly finals won Bo chum West Germany Utrecht Holland Just shows what really good team can dead stock engine Handy Hint friend friend piano tuner trade curse uses piano wire quite regularly made good suggestion tried make up next set control lines out piano wire sprinkle little talcum powder wire after roll lines onto reel keeps lines rust ing storage After unroll lines use wipe clean rag redust after roll back up W R Lee 3522 Tamarisk Lane Missouri City TX 77459 Foa rn/Evans/Lester continued page 46 piece hardwood landing gear block except should glued place until after wing halves have least trial joined insure proper align ment dihedral Ailerons design calls ailerons probably will using full length strip ailerons authors find Scotch similar tape makes neat dur able easy-to-install hinge controls attached same manner builtup wing sufficiently experienced building design in-set ailerons following suggestions may prove helpful techniques found successful foam wings Pushrods Through Wing way make 98 Model Aviation 3 ADE 5V3 2 Blade Pusher 5-4636-4 35d 8-685d 9-610-6 Si 3 Blade Tractor 5-36-36-4 SOd 3 Blade Pusher 6-3SOd Made polyeste, boll color/- AT YOUR DEALER6-68-8 S125 9610-610-4 5150Pusher10-6$150 GRISH HN INDIANA 44373
Edition: Model Aviation - 1978/03
Page Numbers: 37, 97, 98
I Racing EJBiII Lee NEW RACING RULES final re suits Control Line Contest Board published just recently write few quite significant changes should aware pre paring 1978 season Ill comment few important changes First off entire section Control Line Racing rules book has re written now have general set rac ing rules called Unified Control Line Racing Rules govern AMA Racing events will go back few years will find time events referred Rat Race rules general rules Obviously cause Rat first racing events following demise AMA Class B Team Racing number years ago events since merely added some new dimension create new event few years ago subtle significant change book ties Rat broken Goodyear caused some problems over come later years gradually getting general rules spelled out Good year along came Slow Rat Again event tied itself back Rat real problem Rat changed changed events linked whether change intended whether change proper became obvious couple years ago Control Line Racing matured enough rules needed re-written order easily handle cur rent events new ones might added future Hence along came Unified Rules corresponding re structuring rules Rac ing events Until new book published youll have satisfy yourself few scraps can get yourself would strongly sug gest go back December 1976 sue Model viation read orig inal proposal CL-78-13RAC -14 RAC nearest thing book available until 78-79 book comes out Read proposal closely some very subtle changes might meet eye first reading Some well talk about below have some penalties spelled out just understood before now 3-lap penalty starting engine before starting signal Continued page 97 American-made Nelson 1 SD engine fastest time British Nats winner Bochum West Germany Utrecht Holland March 1978 37 Team Race meets throughout world hard fought well flown 1977 European Championships BugI Austria Peterson Denmark 1mev Bulgaria tie team crowd cast magnesium engine mounts See copy further details interesting engines seen 1577 European Champion ships Cipolla bar-stock engine Italian origin Another idea make planes flyable increase line length 60 ft FAIs 70 ft AMA planes extra few feet add tre mendous amount extra space fly longer lines cost bit course require room isnt generally problem grass flying sites line rake may needed too idea FAI type fuel lubricant alco hol has tried too Its OK club meet source fuel used impossible police larger scale Fox Tigre set up run FAI fuel still very fast high com pression needed extract maximum horsepower hard tune pops plugs least often nitro fuel big advantage cost fuel gal lon no nitro fuel may mixed little $300 compared $10 high nitro brews ultimate nasty medicine~ re ported last months column 60% nitro 20% propylene oxide 20% NPG oil has another side effect besides making ex cess horsepower burned hole through piston caved dome lot probably have done same thing much lower percentages nitro George Mattei has series very informative articles MACA News letter concerning engine set-up fuels well worth $6 costs join MACA MACA membership send $6 Patty Sasnett Treasurer 1443 McKinley Es condido CA 92025 Charlie Johnson 3716 San Diego CA 92109 graham St CL Racing/Lee continued page 37 given start race old rules no penalty although contest direc tors guide did say disqualification Now book spells out black-and-white course old book already listed pen alties whipping improper passing etc have retained section Rat Race pro posal December 76 issue MA advertently left out paragraphs indi cating no model restric tions wing area etc also two-part model construction follow CL Speed section method con struction have restored new book significant change will affect events diameters marked circles define pitting pilot ing limits What new circles pro vide little better margin safety allowing events utilize common set circles marked ground also allow slightly smaller total area needed put largest circle 76 ra dius rather 80 past pinch Outer Circle Rat could 75 radius rather 76 partic PRODUCT1 WING SUPPORT Spring steel 1/2 03/64 57HONG Co NAGWING CHANNEL dimension tongue two on-CENHAN ICA breakable Lexan plastic 4-walled tracks insert wings 5 Vee fuselage center section $695 PRODUCT #2 E-Z SPOILER LINKAGE Two 900 torked bellcranks wing insertion Slips deal 1 800 fuselageCELLCNANNeHONeCILEN mounted size adjustable Lexan bellcrank hardware included $395 oPRODUCTm4 PRODUCT #3FLYING STAB JOINER TUBES FLYING STABAND LOCKING ASSEMBLY Three 3/32 id brass tubes fourth BELLCRANKpermanently attached 2 long 900 legs fit both 3/32a locking brass /o music wire pivot sing 3/32 support wire Fully ribbed4-40 screw $1 anle reintorcedot Lexan $195HNO MORE LOOSE STABS IN FLIGHT KIT MODIFIERS SPECIALPACKAGE OF ALL FOUR ABOVE. $1295 S 1 12 span Clark Y airfoil 10 sq area 2 44 hap 15 spoiler bay 2 spars out tip 3 5 dihedral 50 polyhedral Two oh wing joiners installed 5 Spoiler linkage holes bellcrank bays cut 6 Sniffler antenna holes cut 7 Plywood root rib installed 8 Flying stab has locking assembly installed 9 Glue tips install spoiler blades linkage cover fIr TOTAL $19000 SAILPLANE ACESSOHY COSEND TO PO BOX 412 BARDONIANY10954PLEASE PRINT I I PRODUCT #1REPLACEMENTSiSaws Quantity . @ $695 5PRODUCT #1Address .......... PRODUCT #2Wing channels Ouantity @ $395 5-Quantity @ $195 $ciw........ Quantity 95 $.Quantity 95 $ PRODUCT #3Fuse VeeSlotsZip......... PRODUCT #4Steel tongues l purchased II Quantity @ $195 5---Quantity @ $95 $.. -NY residentu odd 4% tax KIT MODIFIERSPRODUCT #2Tntal SPECIAL @ $1295 $iso0 belicrankAdd 10% Irniehi & handilneI FFERQuantity 95 $--TOTAL 5NCLO5CO BALSA COVEREDMinimum nrder $400 FOAM WINGForked bellcrank Quantity@ $19900 $Quantity@ $ 95 $ Wing shipped treight cniiectI k March1978 97 GOOF PROOF TRIM SHEETS Ita iron-on goof re heat ft 2779 Ph man Aae Hun agdan Va eye 05 C COVERITE Pa 9006 FUEL IT FLIP IT N FLY D-Varnrshpng Brashes 020-60 Fuei Bulbs 1 2 oz 01 /2A Fani Line Assi 01/4 1 /2A Twn 0 Tef ion Rend Vaive 1.Send SASE linerasure Dealer inquiries inm5ed DIESEL CONVERTERS $995 Ask dealer add $100 p&h order direcs ICoan Res add STl Up 50% power 50% economy glow new fuel formula Diesel Fuel Pa $350 $500 $1 p&h Davis Diesel DeeIopment Inc 141 DEPTEMiLPOROCT06400 BOX HONE 12031 077-1 670 GRISH AIRCRAFT TYPE PROPELLERS Made hardwood fully carved true helical pitch airfoil ready sanding ALL SIZES INir$700 8 & 10 PITCH20800 RIGHT HAND221000 ROTATION241300 3/8 BORE AT YOuR DEALER USE TO PROPEL AIR CREATE THRUST AND BE PROPELLED BY AIR AT DISCRETION OF THE PURCHASER PROPELLERS ALL GRISH PROPELLERS ARE ENGINEERED TO TRUEHELICAL PITCH AND AIRFOIL FOR EFFICIENCY NEW COLOR. OLD PRICES 2 Blade Tractor 545/354-430d 636435 747-678SOd 84868-865d 949697 9-810-410-6 85d 11411-611-8 Si 12-412-512-6 8150 YELLOW propellers phasing out NATURAL WHITE phases Minor production savings help hold down prices Grish engineered airefficiency strength remain same either color ular site 150 put circle would have helped lot Oshkosh Nats 73 forced fly 150 runways center circle now called Pilots Circle still 5 radius big change next circle called Pitting Circle 15 radius rather 20 before out event has its own set circle radii form set Outer Circle event becomes Inner Circle another thus minimizing number circles have paint mark Racing events circle radii 5 15 48 58 68 76 Probably significant changes allow constant-diameter exhaust extension racing events ex cept Slow Rat use exhaust extension prohibited elim inates megaphones Goodyear should help event dont believe pipe really helps vast majority Goodyears theyre run anyhow True few really go worth nothing noise unre liability Good riddance Now lets see minipipe will help Running openface will bring some racers back Goodyear left noise megaphone scared off Another change going make lot people unhappy engine restric tion Slow Rat Basically change says engine must have produced 36 smaller significant parts have produced excludes head bolts needle valve venturi prop washer nut etc cludes complete crankcase including front end back end upper lower portion detachable split ex cluding ball bearings applicable engine crankshaft cylinder sleeve piston about rule will ap pear book What rule does say CLCB will have de fine what constitutes original manufacturer engine better yet what defines production engine look around at least couple sources what might call homebuilt engines use least few parts similar engine different manufacturer going legal illegal dont know sure would hate see small guy driven off rule Goodyear has couple important changes First hand-on-chest rule flying gone Second semi-final/final system also gone No longer fly 80-lap semi-finals take three best final race really would know best flight No now back 12 finals top runner turkey trot heat gets win everyone can go home grum ble Id just good heat Id have won Oh well cant win em Rat Race Slow Rat Race since tied together benefited change affects races well construction techniques final race Rat Slow Rat now has three pit stops 140 laps rather two previously What means race times next year will longer year about 10-15 sec onds Also dont have set up Rats differently now qualifying heats finals three stops 140-lap final race will four 35-lap segments rather three 47-lap pieces previously nice part qualifying heats two 35-lap seg ments can set up plane 35 laps per tank entire event rather have allow longer segments used have run Nelson Competition Products Just re ceived note Henry Nelson Nelson Competition Engines 729 Valemont Dr Verona PA 15147 current infor mation two real quality products produces FAI Team Race crowd Nelson 15D engine cast magnesium engine mounts Let quote little Henry st advertis ing has Metkmeijers fastest heat time British Nats leave catch boat didnt fly finals won Bo chum West Germany Utrecht Holland Just shows what really good team can dead stock engine Handy Hint friend friend piano tuner trade curse uses piano wire quite regularly made good suggestion tried make up next set control lines out piano wire sprinkle little talcum powder wire after roll lines onto reel keeps lines rust ing storage After unroll lines use wipe clean rag redust after roll back up W R Lee 3522 Tamarisk Lane Missouri City TX 77459 Foa rn/Evans/Lester continued page 46 piece hardwood landing gear block except should glued place until after wing halves have least trial joined insure proper align ment dihedral Ailerons design calls ailerons probably will using full length strip ailerons authors find Scotch similar tape makes neat dur able easy-to-install hinge controls attached same manner builtup wing sufficiently experienced building design in-set ailerons following suggestions may prove helpful techniques found successful foam wings Pushrods Through Wing way make 98 Model Aviation 3 ADE 5V3 2 Blade Pusher 5-4636-4 35d 8-685d 9-610-6 Si 3 Blade Tractor 5-36-36-4 SOd 3 Blade Pusher 6-3SOd Made polyeste, boll color/- AT YOUR DEALER6-68-8 S125 9610-610-4 5150Pusher10-6$150 GRISH HN INDIANA 44373
Edition: Model Aviation - 1978/03
Page Numbers: 37, 97, 98
I Racing EJBiII Lee NEW RACING RULES final re suits Control Line Contest Board published just recently write few quite significant changes should aware pre paring 1978 season Ill comment few important changes First off entire section Control Line Racing rules book has re written now have general set rac ing rules called Unified Control Line Racing Rules govern AMA Racing events will go back few years will find time events referred Rat Race rules general rules Obviously cause Rat first racing events following demise AMA Class B Team Racing number years ago events since merely added some new dimension create new event few years ago subtle significant change book ties Rat broken Goodyear caused some problems over come later years gradually getting general rules spelled out Good year along came Slow Rat Again event tied itself back Rat real problem Rat changed changed events linked whether change intended whether change proper became obvious couple years ago Control Line Racing matured enough rules needed re-written order easily handle cur rent events new ones might added future Hence along came Unified Rules corresponding re structuring rules Rac ing events Until new book published youll have satisfy yourself few scraps can get yourself would strongly sug gest go back December 1976 sue Model viation read orig inal proposal CL-78-13RAC -14 RAC nearest thing book available until 78-79 book comes out Read proposal closely some very subtle changes might meet eye first reading Some well talk about below have some penalties spelled out just understood before now 3-lap penalty starting engine before starting signal Continued page 97 American-made Nelson 1 SD engine fastest time British Nats winner Bochum West Germany Utrecht Holland March 1978 37 Team Race meets throughout world hard fought well flown 1977 European Championships BugI Austria Peterson Denmark 1mev Bulgaria tie team crowd cast magnesium engine mounts See copy further details interesting engines seen 1577 European Champion ships Cipolla bar-stock engine Italian origin Another idea make planes flyable increase line length 60 ft FAIs 70 ft AMA planes extra few feet add tre mendous amount extra space fly longer lines cost bit course require room isnt generally problem grass flying sites line rake may needed too idea FAI type fuel lubricant alco hol has tried too Its OK club meet source fuel used impossible police larger scale Fox Tigre set up run FAI fuel still very fast high com pression needed extract maximum horsepower hard tune pops plugs least often nitro fuel big advantage cost fuel gal lon no nitro fuel may mixed little $300 compared $10 high nitro brews ultimate nasty medicine~ re ported last months column 60% nitro 20% propylene oxide 20% NPG oil has another side effect besides making ex cess horsepower burned hole through piston caved dome lot probably have done same thing much lower percentages nitro George Mattei has series very informative articles MACA News letter concerning engine set-up fuels well worth $6 costs join MACA MACA membership send $6 Patty Sasnett Treasurer 1443 McKinley Es condido CA 92025 Charlie Johnson 3716 San Diego CA 92109 graham St CL Racing/Lee continued page 37 given start race old rules no penalty although contest direc tors guide did say disqualification Now book spells out black-and-white course old book already listed pen alties whipping improper passing etc have retained section Rat Race pro posal December 76 issue MA advertently left out paragraphs indi cating no model restric tions wing area etc also two-part model construction follow CL Speed section method con struction have restored new book significant change will affect events diameters marked circles define pitting pilot ing limits What new circles pro vide little better margin safety allowing events utilize common set circles marked ground also allow slightly smaller total area needed put largest circle 76 ra dius rather 80 past pinch Outer Circle Rat could 75 radius rather 76 partic PRODUCT1 WING SUPPORT Spring steel 1/2 03/64 57HONG Co NAGWING CHANNEL dimension tongue two on-CENHAN ICA breakable Lexan plastic 4-walled tracks insert wings 5 Vee fuselage center section $695 PRODUCT #2 E-Z SPOILER LINKAGE Two 900 torked bellcranks wing insertion Slips deal 1 800 fuselageCELLCNANNeHONeCILEN mounted size adjustable Lexan bellcrank hardware included $395 oPRODUCTm4 PRODUCT #3FLYING STAB JOINER TUBES FLYING STABAND LOCKING ASSEMBLY Three 3/32 id brass tubes fourth BELLCRANKpermanently attached 2 long 900 legs fit both 3/32a locking brass /o music wire pivot sing 3/32 support wire Fully ribbed4-40 screw $1 anle reintorcedot Lexan $195HNO MORE LOOSE STABS IN FLIGHT KIT MODIFIERS SPECIALPACKAGE OF ALL FOUR ABOVE. $1295 S 1 12 span Clark Y airfoil 10 sq area 2 44 hap 15 spoiler bay 2 spars out tip 3 5 dihedral 50 polyhedral Two oh wing joiners installed 5 Spoiler linkage holes bellcrank bays cut 6 Sniffler antenna holes cut 7 Plywood root rib installed 8 Flying stab has locking assembly installed 9 Glue tips install spoiler blades linkage cover fIr TOTAL $19000 SAILPLANE ACESSOHY COSEND TO PO BOX 412 BARDONIANY10954PLEASE PRINT I I PRODUCT #1REPLACEMENTSiSaws Quantity . @ $695 5PRODUCT #1Address .......... PRODUCT #2Wing channels Ouantity @ $395 5-Quantity @ $195 $ciw........ Quantity 95 $.Quantity 95 $ PRODUCT #3Fuse VeeSlotsZip......... PRODUCT #4Steel tongues l purchased II Quantity @ $195 5---Quantity @ $95 $.. -NY residentu odd 4% tax KIT MODIFIERSPRODUCT #2Tntal SPECIAL @ $1295 $iso0 belicrankAdd 10% Irniehi & handilneI FFERQuantity 95 $--TOTAL 5NCLO5CO BALSA COVEREDMinimum nrder $400 FOAM WINGForked bellcrank Quantity@ $19900 $Quantity@ $ 95 $ Wing shipped treight cniiectI k March1978 97 GOOF PROOF TRIM SHEETS Ita iron-on goof re heat ft 2779 Ph man Aae Hun agdan Va eye 05 C COVERITE Pa 9006 FUEL IT FLIP IT N FLY D-Varnrshpng Brashes 020-60 Fuei Bulbs 1 2 oz 01 /2A Fani Line Assi 01/4 1 /2A Twn 0 Tef ion Rend Vaive 1.Send SASE linerasure Dealer inquiries inm5ed DIESEL CONVERTERS $995 Ask dealer add $100 p&h order direcs ICoan Res add STl Up 50% power 50% economy glow new fuel formula Diesel Fuel Pa $350 $500 $1 p&h Davis Diesel DeeIopment Inc 141 DEPTEMiLPOROCT06400 BOX HONE 12031 077-1 670 GRISH AIRCRAFT TYPE PROPELLERS Made hardwood fully carved true helical pitch airfoil ready sanding ALL SIZES INir$700 8 & 10 PITCH20800 RIGHT HAND221000 ROTATION241300 3/8 BORE AT YOuR DEALER USE TO PROPEL AIR CREATE THRUST AND BE PROPELLED BY AIR AT DISCRETION OF THE PURCHASER PROPELLERS ALL GRISH PROPELLERS ARE ENGINEERED TO TRUEHELICAL PITCH AND AIRFOIL FOR EFFICIENCY NEW COLOR. OLD PRICES 2 Blade Tractor 545/354-430d 636435 747-678SOd 84868-865d 949697 9-810-410-6 85d 11411-611-8 Si 12-412-512-6 8150 YELLOW propellers phasing out NATURAL WHITE phases Minor production savings help hold down prices Grish engineered airefficiency strength remain same either color ular site 150 put circle would have helped lot Oshkosh Nats 73 forced fly 150 runways center circle now called Pilots Circle still 5 radius big change next circle called Pitting Circle 15 radius rather 20 before out event has its own set circle radii form set Outer Circle event becomes Inner Circle another thus minimizing number circles have paint mark Racing events circle radii 5 15 48 58 68 76 Probably significant changes allow constant-diameter exhaust extension racing events ex cept Slow Rat use exhaust extension prohibited elim inates megaphones Goodyear should help event dont believe pipe really helps vast majority Goodyears theyre run anyhow True few really go worth nothing noise unre liability Good riddance Now lets see minipipe will help Running openface will bring some racers back Goodyear left noise megaphone scared off Another change going make lot people unhappy engine restric tion Slow Rat Basically change says engine must have produced 36 smaller significant parts have produced excludes head bolts needle valve venturi prop washer nut etc cludes complete crankcase including front end back end upper lower portion detachable split ex cluding ball bearings applicable engine crankshaft cylinder sleeve piston about rule will ap pear book What rule does say CLCB will have de fine what constitutes original manufacturer engine better yet what defines production engine look around at least couple sources what might call homebuilt engines use least few parts similar engine different manufacturer going legal illegal dont know sure would hate see small guy driven off rule Goodyear has couple important changes First hand-on-chest rule flying gone Second semi-final/final system also gone No longer fly 80-lap semi-finals take three best final race really would know best flight No now back 12 finals top runner turkey trot heat gets win everyone can go home grum ble Id just good heat Id have won Oh well cant win em Rat Race Slow Rat Race since tied together benefited change affects races well construction techniques final race Rat Slow Rat now has three pit stops 140 laps rather two previously What means race times next year will longer year about 10-15 sec onds Also dont have set up Rats differently now qualifying heats finals three stops 140-lap final race will four 35-lap segments rather three 47-lap pieces previously nice part qualifying heats two 35-lap seg ments can set up plane 35 laps per tank entire event rather have allow longer segments used have run Nelson Competition Products Just re ceived note Henry Nelson Nelson Competition Engines 729 Valemont Dr Verona PA 15147 current infor mation two real quality products produces FAI Team Race crowd Nelson 15D engine cast magnesium engine mounts Let quote little Henry st advertis ing has Metkmeijers fastest heat time British Nats leave catch boat didnt fly finals won Bo chum West Germany Utrecht Holland Just shows what really good team can dead stock engine Handy Hint friend friend piano tuner trade curse uses piano wire quite regularly made good suggestion tried make up next set control lines out piano wire sprinkle little talcum powder wire after roll lines onto reel keeps lines rust ing storage After unroll lines use wipe clean rag redust after roll back up W R Lee 3522 Tamarisk Lane Missouri City TX 77459 Foa rn/Evans/Lester continued page 46 piece hardwood landing gear block except should glued place until after wing halves have least trial joined insure proper align ment dihedral Ailerons design calls ailerons probably will using full length strip ailerons authors find Scotch similar tape makes neat dur able easy-to-install hinge controls attached same manner builtup wing sufficiently experienced building design in-set ailerons following suggestions may prove helpful techniques found successful foam wings Pushrods Through Wing way make 98 Model Aviation 3 ADE 5V3 2 Blade Pusher 5-4636-4 35d 8-685d 9-610-6 Si 3 Blade Tractor 5-36-36-4 SOd 3 Blade Pusher 6-3SOd Made polyeste, boll color/- AT YOUR DEALER6-68-8 S125 9610-610-4 5150Pusher10-6$150 GRISH HN INDIANA 44373