PRODUCT reviews Periodically receive RC products manufacturers Theyd obviously like have rave review published Model Avi ation sometimes just thatif really like product As often find things like dont like about products reports include both positive negative sides prod ucts review think manufacturers under stand policy establishes credibility reviews Model Aviation staff doesnt really like publish reports about negative prod uct featuresI suppose fear advertising revenues may sufferbut magazine does pub lish reports Sometimes ask local modelers kit re views because schedule usually pretty full ask objective report good bad features kit just would has worked out well past received Great Planes Ultra Sport 40 kit asked local modeler Bob Boiling review Bob Air Force fighter pilot cur rently flying F-iS flight tests Eglin Air Force Base Besides being engineer hes good RC sport pilot fine builder wel comed opportunity kit reviewand did fine job youll now discover Bob Boilings report follows Ultra Sport 40 Great Planes has topof-the-line price tag rightly very curious know what kit might have jus tify $10995 retail price brought kit home eagerly opened box took first peek first impression very positive like pieces balsa rubberbanded together Small pieces separated sealed plastic bags including generous hardware package full-sized plans rolled box neatly packaged no damage shipping impressive item kit however instruction manual Its complete comprehensive 47-page manual best written Ive seen Theres complete parts list includes pictures diecut parts helps easily identify some obscurely named parts back manual outstanding section flight trimming model reprinted Scale RIC Modeler must beginning advanced sport flier fliers myself includeduntil now have slighted disregarded finer points aircraft trimming tend fly model around bit use trim tabs land give control devises few twists zero out trim leave well complain about problems doing straight pulls loops changes trim throttle changed Mostly thats because just dont know some basic trimming Well its cluded Great Planes manual now theres no excuse construction section manu facturers really make money Ultra Sport 40 features no-kidding step-by-step construction start finish have ever built Heathkit youll appreciate well thought out organization can perform couple steps walk away week often jump right back left off step has box check off its complete page has three four clear pictures illustrating particular step being dis cussed pictures enhanced dark lines outlining difficult-to-see items accompa nied labels indicate whats what tips scattered throughout manual Warnings suggestions keep 60 Model Aviation Rado Conoi Sport Aerobatics Ron Van Putte Ill Sleepy Oaks Rd Ft Walton leach FL 32548 Ultra Sport 40 unfinished condition before covering Ultracote Plentiful power pro vided combination 05 40 FP engine Master Airscrew Tru-Turn spinner Wing panel Bob Boilings Ultra Sport 40 under construction corner part com prehensIve construction manual including reprint Scale RC Modeler flight trimming Bob Boilings son Robbie sitting proudly next fathers new Ultra Sport 40 Please notice Eglin Aero Modelers pit area has carpets protection foreign object damage 2 piece Plug-In Wing Design Detailed Lightweight Epoxy Fiberglass Fuselage & Cowing Clear Canopy & Aluminum Landing Gear Balsa/Foam Wng Stab & Rudder Ply Foamss & Wng Joining Tubes y & Fast Consuobon GNarukesSjlqflt ST IPIC Lange 54 g 4. 644 eq ENUNE 920 20 oi 4-o4a . 9 2 ognI Cranfiled l0hp Conilnental 10-3601) built Cranfield College Technology spedfications drawn up Neil Williams Lightweight Epoxy Fiberglass Fuselage & Cowling Balsa/Foam Wng Stab & Rudder Clear Canopy P Formers & Fast Conuobon yau Ioaldng fo pni model Exoallant Flying & Handling Qia-soteriado Quick Corwmuction mal & Operate Ideal AMA/FAi & around Sport Flying Easy uansportauon 2 peca wing design] Surpass Miss Beetle answei jy~ Miss Beetle IPEC LagS 25 Wng k- BAA eq ENUNI 920a 20 60. Cl ai 2-gai Bauc Semi-Built 1/4 Seals ArobaclcModels Laear200/72$19500$35500 Sukhoi SU26M / 77. 2450039500 Cranfield A-I / 602450039500 isbolo / 842650042500 Pattern Models Jekyll$20500 Slant ST19000 lisa Beetle19000 ,rpaes Beetle16500 $36500 35000 35000 31500 HEcopter Bade Black Shark$22500 ir Jet22500 Calif ares Resident add 71/4% Sale Tax builder going astray also plentiful wouldnt suggest aircraft ginning RCer instruction manual appropri ate building levels followed step ex acfly written no trouble building straight true airframe design airplane itself strong clean pleasing lines fuselage parts interlock making relatively easy put gether center section rugged built-up wing reinforced fuselage die-cut parts cleanly precisely cut kit two small problems couple parts h-in ply firewall about eighth inch too long needed little sanding fit properly unfortu nate since kitmakers gone trouble bevel edge angle fit fuselage exactly other problem showed up time glue fuselage nose sides plans called fabricating sides x 3 x 8in piece balsa Unfortunately piece labeled parts list nose side x x 8 ina little too narrow use Since check parts list confirmed %-in balsa indeed specified rather wider piece actually needed suspect typo packing materials list responsible minor errors didnt signif icantly detract kit thats outstanding over wish pieces closely shaped what actually needed lot square rectangular blocks balsa required considerable rough shaping usable Perhaps preshaping pieces would make kit prohibitively expensive surely would speed building ample space radio mounting installed Futaba 9VAP radio Id gotten 10-year anniversary present wife us ing mounting technique shown plans plans call 40 45 two-stroke en gine 05 40 FP went ahead used adequate think something little pizzazz would appropriate finished model Ultracoteprimar ily black gray sunbursts silver pinstrip ing looks pretty good sure soaks up heat Florida sun big day first flight finally came brought out model received some approv ing comments fellow modelers helped boost confidence first flight always nerve-racking especially Ive spent great deal time construction first step always take picture just case disaster strikes first flight fueled up started taxied Out Some engine trouble caused couple aborted takeoffs increased anxiety Finally after some needle valve fiddling taxied back out firewalled throttle speed built up rotated took air Miraculously no trim required Aerody namically craft tracked straight first guess pays particular about wing warp incidence angles etc stressed instructions Ive now started trimming process Out lined back manual flies flies well Rolls axial knife-edge flight no problem Ultra Sport 40 good build ing flying airplane give two thumbs up Thanks Bob Im sure everyone will agree Continued page 171 December 1990 61 -I SUKHOI SU-26M 114 scale Wing Span 90 Ideal 120 [4-cycle] 15cc 30cc [2-cycle] CRANFIELD A-I 114 scale Surpass Miss Beetle WEt La,gli 55" ~e ST k. 250 eq EnSUE Ideal 70 ao 4-cycle Chip Hydes Jekyll WEC Le0h5Ta-55WaAree-77Oeqe EIInNL B see 1l 2de RC Scale/Foley Continued page 167 Championships must-see Scale events country As writing loca tions Nats Scalemasters have announced However Top Gun scheduled May 2-5 1991 Palm Beach Polo Club West Palm Beach FL site will best yet first-class accommodations permanent bleachers spectators super-nice field also possibility cosponsorship major airline addresses companies men tioned article Model Engineering 401 South Front Street Raleigh NC 27658 Sig Man ufacturing Co Inc PO Box 58306 Monte zuma IA 50171 RC Aerobatics/Van Putte Continued page 61 Bob did fine job once product will come Out grabs attention fliers across coun try Fliers will buy droves year after its introduced cant imagine get along Tm-Turn spinners good ex ample Romco Manufacturings Bob Obenberger brought some Tm-Turn samples Nats Lake Charles early 1980s within year spinners become standard RC Pattern now have another product breakthrough hands check Nats RC Pattern ma trix youll see top competitors years contest used APC propellers Pattern fliers fussy fickle buy what works well desert good product heartbeat bet ter comes out Last year few competitors used funnylooking APC props fliers made jokes expense curious thing happened Pattern fliers noted several top competitors using newer props Bill Cunningham Chris Lakin good examples took good hard look Thats large numbers APC props began sold de spite reports prop failures early prob lems prop failures solved havent heard such mishaps lately redesigning prop shape B-10 present C-2 version APC has improved al ready great prop propellers quiet produce remarkable thrust aircraft flight conditions P81AACn$50 8008408488001800400 SF30031S 401255 SF400418 001255 SF5001653200-001570 RESOS0523200-I1075 SF750TVC5232 ScaB 1075 3105 5p~o 4~I3216 uscoIe down side sharpness trail ing edge near prop hub usually use starter periodic hand cranking occasionally gives cut finger unless take piece 280400-grit emery cloth trailing edge near hub Thats small price pay superior prop really big bonuses using APC props beyond performance price availability Theyre like lot Pattern spe cialty items have special ordered single source outrageous prices Virtually good hobby shops have havent tried APC props should RC Old-Timers/Mathews Continued page 63 president Jim Adams mentions library ing set up Gene Wallock provide members reprints articles etc pre-WV II model publications Additionally longawaited list SAM officially approved model de signs both Gas Scale will available members makes two new reasons join society way Jim happens have drawings available two early deBolt RCsthe 1954 Over Under mdder-only design sym metrical section airfoil kit version deBolt called Sonic Cruiser Over Under intended 19 power Sonic Cruis er 29 engines drawings both show elevators brave heart priced reasonable $5 drawings avail able Jim Adams 2538 Spurgeon St Santa Ana CA 92706 Tools trade Im fortunate having long-standing source worn-out Iris scissors Kelly hemostats #25 Bard Parker handles Own lucky recommend Hobby Craft Instruments 9279 Cody Overland Park KS 66214 tel 1-913/492-1898 source new reasonably priced surgical struments havent used good knife till youve used #25 blade No 4 handle RC Scale Duration Bob Lonseth has discovered some additions list eligible designs Unlimited Scale Duration originally published Aeroneers newsletter recently printed column follows 44-in-span Eurocoupe published March 1943 Model Airplane News 48-in-span Monocoupe 90 October 1942 Air Trails 42-inspan Curtiss 0-52 published Model Airplane News September 1942 Aeronews editor Jim Alaback reproduced - Cesare de Robenis Cesare de Robertis Secretary SAM Italia offers pictorial guide engines East bloc Filled interesting Informa tion See text order Hobby Craft Instruments good bet reasonably priced surgical-grade tools trade Earl Stahl article recent issue 1944 Air Trails Annual excellent material anyone interested RC Scale Duration other reason new SAM library such December 1990 171 fleM Texas RC Slow Only $4495 Winner Combat Technology Now Radio Control 4 34 Channels 4 25-30 Engines 4 Adaptable 10. 15 40-45s 4 Rugged & Easy build 448 span 460 sq Dealer Inquiries Welcome Send $100 Catalog Combat Goodies OREHOU 760 Waltonvifle Rd Humnielatown PA 17036 717 566-3810 DUAL STRUT NICKEL PLATED NOSE GEAR 70 5,. /5 Ii AOL Fulls Tooling PO Box 95 Chanpaign IL 61824 urn ou p n n o artoI plotter FOILED AGAIN! PLOT AIRFOiLS IN ANY CHORD UP TO 24 INCHES MODIFY THiCKNEss CAMBER & TRAILING EDGE PLOT SKIN THiCKNESS FORsHEErED WINGS ENTER DATA EASILY VIA INTELUGENT EDITOR USER-FRIENDLY MENU-DRIVEN OPERATION INCLUDES il-PAGE ILLUSTRATED U5ER MANUAL $4500 CA 8. 0808 p185880058IZZv- nags. IBMPCIXCIAV compaUbI flflfll 8800 88fl JO US$58A conphJa enS 00 matOx 50500 SI comes, 53001 5058 0000 008092558000 525o Sr OAkS Sesa 058001 money 00W02 CYGNET Software714 496-6961 24843 Del Prado #141B Dana Point CA 92629 IMOTORID4LE4 Una breve guida alla produz o4scromotur parsi dei Pallo d a 2 22 2222 1 422 1 PRICE LIST SURGICAL GRADE INSTRUMENTS FOR MODELING AIRPLANES S RDABLE SOURCE GE SURGICAL GRADE INSTRUMENTS FOR TOE SI GD EL AND CRAFT HOBBYIST lobby ClaP 1051050101151 074 EssAy GscLnd Thssk ES 16214 II 492-5085 1 21
Edition: Model Aviation - 1990/12
Page Numbers: 60, 61, 171
PRODUCT reviews Periodically receive RC products manufacturers Theyd obviously like have rave review published Model Avi ation sometimes just thatif really like product As often find things like dont like about products reports include both positive negative sides prod ucts review think manufacturers under stand policy establishes credibility reviews Model Aviation staff doesnt really like publish reports about negative prod uct featuresI suppose fear advertising revenues may sufferbut magazine does pub lish reports Sometimes ask local modelers kit re views because schedule usually pretty full ask objective report good bad features kit just would has worked out well past received Great Planes Ultra Sport 40 kit asked local modeler Bob Boiling review Bob Air Force fighter pilot cur rently flying F-iS flight tests Eglin Air Force Base Besides being engineer hes good RC sport pilot fine builder wel comed opportunity kit reviewand did fine job youll now discover Bob Boilings report follows Ultra Sport 40 Great Planes has topof-the-line price tag rightly very curious know what kit might have jus tify $10995 retail price brought kit home eagerly opened box took first peek first impression very positive like pieces balsa rubberbanded together Small pieces separated sealed plastic bags including generous hardware package full-sized plans rolled box neatly packaged no damage shipping impressive item kit however instruction manual Its complete comprehensive 47-page manual best written Ive seen Theres complete parts list includes pictures diecut parts helps easily identify some obscurely named parts back manual outstanding section flight trimming model reprinted Scale RIC Modeler must beginning advanced sport flier fliers myself includeduntil now have slighted disregarded finer points aircraft trimming tend fly model around bit use trim tabs land give control devises few twists zero out trim leave well complain about problems doing straight pulls loops changes trim throttle changed Mostly thats because just dont know some basic trimming Well its cluded Great Planes manual now theres no excuse construction section manu facturers really make money Ultra Sport 40 features no-kidding step-by-step construction start finish have ever built Heathkit youll appreciate well thought out organization can perform couple steps walk away week often jump right back left off step has box check off its complete page has three four clear pictures illustrating particular step being dis cussed pictures enhanced dark lines outlining difficult-to-see items accompa nied labels indicate whats what tips scattered throughout manual Warnings suggestions keep 60 Model Aviation Rado Conoi Sport Aerobatics Ron Van Putte Ill Sleepy Oaks Rd Ft Walton leach FL 32548 Ultra Sport 40 unfinished condition before covering Ultracote Plentiful power pro vided combination 05 40 FP engine Master Airscrew Tru-Turn spinner Wing panel Bob Boilings Ultra Sport 40 under construction corner part com prehensIve construction manual including reprint Scale RC Modeler flight trimming Bob Boilings son Robbie sitting proudly next fathers new Ultra Sport 40 Please notice Eglin Aero Modelers pit area has carpets protection foreign object damage 2 piece Plug-In Wing Design Detailed Lightweight Epoxy Fiberglass Fuselage & Cowing Clear Canopy & Aluminum Landing Gear Balsa/Foam Wng Stab & Rudder Ply Foamss & Wng Joining Tubes y & Fast Consuobon GNarukesSjlqflt ST IPIC Lange 54 g 4. 644 eq ENUNE 920 20 oi 4-o4a . 9 2 ognI Cranfiled l0hp Conilnental 10-3601) built Cranfield College Technology spedfications drawn up Neil Williams Lightweight Epoxy Fiberglass Fuselage & Cowling Balsa/Foam Wng Stab & Rudder Clear Canopy P Formers & Fast Conuobon yau Ioaldng fo pni model Exoallant Flying & Handling Qia-soteriado Quick Corwmuction mal & Operate Ideal AMA/FAi & around Sport Flying Easy uansportauon 2 peca wing design] Surpass Miss Beetle answei jy~ Miss Beetle IPEC LagS 25 Wng k- BAA eq ENUNI 920a 20 60. Cl ai 2-gai Bauc Semi-Built 1/4 Seals ArobaclcModels Laear200/72$19500$35500 Sukhoi SU26M / 77. 2450039500 Cranfield A-I / 602450039500 isbolo / 842650042500 Pattern Models Jekyll$20500 Slant ST19000 lisa Beetle19000 ,rpaes Beetle16500 $36500 35000 35000 31500 HEcopter Bade Black Shark$22500 ir Jet22500 Calif ares Resident add 71/4% Sale Tax builder going astray also plentiful wouldnt suggest aircraft ginning RCer instruction manual appropri ate building levels followed step ex acfly written no trouble building straight true airframe design airplane itself strong clean pleasing lines fuselage parts interlock making relatively easy put gether center section rugged built-up wing reinforced fuselage die-cut parts cleanly precisely cut kit two small problems couple parts h-in ply firewall about eighth inch too long needed little sanding fit properly unfortu nate since kitmakers gone trouble bevel edge angle fit fuselage exactly other problem showed up time glue fuselage nose sides plans called fabricating sides x 3 x 8in piece balsa Unfortunately piece labeled parts list nose side x x 8 ina little too narrow use Since check parts list confirmed %-in balsa indeed specified rather wider piece actually needed suspect typo packing materials list responsible minor errors didnt signif icantly detract kit thats outstanding over wish pieces closely shaped what actually needed lot square rectangular blocks balsa required considerable rough shaping usable Perhaps preshaping pieces would make kit prohibitively expensive surely would speed building ample space radio mounting installed Futaba 9VAP radio Id gotten 10-year anniversary present wife us ing mounting technique shown plans plans call 40 45 two-stroke en gine 05 40 FP went ahead used adequate think something little pizzazz would appropriate finished model Ultracoteprimar ily black gray sunbursts silver pinstrip ing looks pretty good sure soaks up heat Florida sun big day first flight finally came brought out model received some approv ing comments fellow modelers helped boost confidence first flight always nerve-racking especially Ive spent great deal time construction first step always take picture just case disaster strikes first flight fueled up started taxied Out Some engine trouble caused couple aborted takeoffs increased anxiety Finally after some needle valve fiddling taxied back out firewalled throttle speed built up rotated took air Miraculously no trim required Aerody namically craft tracked straight first guess pays particular about wing warp incidence angles etc stressed instructions Ive now started trimming process Out lined back manual flies flies well Rolls axial knife-edge flight no problem Ultra Sport 40 good build ing flying airplane give two thumbs up Thanks Bob Im sure everyone will agree Continued page 171 December 1990 61 -I SUKHOI SU-26M 114 scale Wing Span 90 Ideal 120 [4-cycle] 15cc 30cc [2-cycle] CRANFIELD A-I 114 scale Surpass Miss Beetle WEt La,gli 55" ~e ST k. 250 eq EnSUE Ideal 70 ao 4-cycle Chip Hydes Jekyll WEC Le0h5Ta-55WaAree-77Oeqe EIInNL B see 1l 2de RC Scale/Foley Continued page 167 Championships must-see Scale events country As writing loca tions Nats Scalemasters have announced However Top Gun scheduled May 2-5 1991 Palm Beach Polo Club West Palm Beach FL site will best yet first-class accommodations permanent bleachers spectators super-nice field also possibility cosponsorship major airline addresses companies men tioned article Model Engineering 401 South Front Street Raleigh NC 27658 Sig Man ufacturing Co Inc PO Box 58306 Monte zuma IA 50171 RC Aerobatics/Van Putte Continued page 61 Bob did fine job once product will come Out grabs attention fliers across coun try Fliers will buy droves year after its introduced cant imagine get along Tm-Turn spinners good ex ample Romco Manufacturings Bob Obenberger brought some Tm-Turn samples Nats Lake Charles early 1980s within year spinners become standard RC Pattern now have another product breakthrough hands check Nats RC Pattern ma trix youll see top competitors years contest used APC propellers Pattern fliers fussy fickle buy what works well desert good product heartbeat bet ter comes out Last year few competitors used funnylooking APC props fliers made jokes expense curious thing happened Pattern fliers noted several top competitors using newer props Bill Cunningham Chris Lakin good examples took good hard look Thats large numbers APC props began sold de spite reports prop failures early prob lems prop failures solved havent heard such mishaps lately redesigning prop shape B-10 present C-2 version APC has improved al ready great prop propellers quiet produce remarkable thrust aircraft flight conditions P81AACn$50 8008408488001800400 SF30031S 401255 SF400418 001255 SF5001653200-001570 RESOS0523200-I1075 SF750TVC5232 ScaB 1075 3105 5p~o 4~I3216 uscoIe down side sharpness trail ing edge near prop hub usually use starter periodic hand cranking occasionally gives cut finger unless take piece 280400-grit emery cloth trailing edge near hub Thats small price pay superior prop really big bonuses using APC props beyond performance price availability Theyre like lot Pattern spe cialty items have special ordered single source outrageous prices Virtually good hobby shops have havent tried APC props should RC Old-Timers/Mathews Continued page 63 president Jim Adams mentions library ing set up Gene Wallock provide members reprints articles etc pre-WV II model publications Additionally longawaited list SAM officially approved model de signs both Gas Scale will available members makes two new reasons join society way Jim happens have drawings available two early deBolt RCsthe 1954 Over Under mdder-only design sym metrical section airfoil kit version deBolt called Sonic Cruiser Over Under intended 19 power Sonic Cruis er 29 engines drawings both show elevators brave heart priced reasonable $5 drawings avail able Jim Adams 2538 Spurgeon St Santa Ana CA 92706 Tools trade Im fortunate having long-standing source worn-out Iris scissors Kelly hemostats #25 Bard Parker handles Own lucky recommend Hobby Craft Instruments 9279 Cody Overland Park KS 66214 tel 1-913/492-1898 source new reasonably priced surgical struments havent used good knife till youve used #25 blade No 4 handle RC Scale Duration Bob Lonseth has discovered some additions list eligible designs Unlimited Scale Duration originally published Aeroneers newsletter recently printed column follows 44-in-span Eurocoupe published March 1943 Model Airplane News 48-in-span Monocoupe 90 October 1942 Air Trails 42-inspan Curtiss 0-52 published Model Airplane News September 1942 Aeronews editor Jim Alaback reproduced - Cesare de Robenis Cesare de Robertis Secretary SAM Italia offers pictorial guide engines East bloc Filled interesting Informa tion See text order Hobby Craft Instruments good bet reasonably priced surgical-grade tools trade Earl Stahl article recent issue 1944 Air Trails Annual excellent material anyone interested RC Scale Duration other reason new SAM library such December 1990 171 fleM Texas RC Slow Only $4495 Winner Combat Technology Now Radio Control 4 34 Channels 4 25-30 Engines 4 Adaptable 10. 15 40-45s 4 Rugged & Easy build 448 span 460 sq Dealer Inquiries Welcome Send $100 Catalog Combat Goodies OREHOU 760 Waltonvifle Rd Humnielatown PA 17036 717 566-3810 DUAL STRUT NICKEL PLATED NOSE GEAR 70 5,. /5 Ii AOL Fulls Tooling PO Box 95 Chanpaign IL 61824 urn ou p n n o artoI plotter FOILED AGAIN! PLOT AIRFOiLS IN ANY CHORD UP TO 24 INCHES MODIFY THiCKNEss CAMBER & TRAILING EDGE PLOT SKIN THiCKNESS FORsHEErED WINGS ENTER DATA EASILY VIA INTELUGENT EDITOR USER-FRIENDLY MENU-DRIVEN OPERATION INCLUDES il-PAGE ILLUSTRATED U5ER MANUAL $4500 CA 8. 0808 p185880058IZZv- nags. IBMPCIXCIAV compaUbI flflfll 8800 88fl JO US$58A conphJa enS 00 matOx 50500 SI comes, 53001 5058 0000 008092558000 525o Sr OAkS Sesa 058001 money 00W02 CYGNET Software714 496-6961 24843 Del Prado #141B Dana Point CA 92629 IMOTORID4LE4 Una breve guida alla produz o4scromotur parsi dei Pallo d a 2 22 2222 1 422 1 PRICE LIST SURGICAL GRADE INSTRUMENTS FOR MODELING AIRPLANES S RDABLE SOURCE GE SURGICAL GRADE INSTRUMENTS FOR TOE SI GD EL AND CRAFT HOBBYIST lobby ClaP 1051050101151 074 EssAy GscLnd Thssk ES 16214 II 492-5085 1 21
Edition: Model Aviation - 1990/12
Page Numbers: 60, 61, 171
PRODUCT reviews Periodically receive RC products manufacturers Theyd obviously like have rave review published Model Avi ation sometimes just thatif really like product As often find things like dont like about products reports include both positive negative sides prod ucts review think manufacturers under stand policy establishes credibility reviews Model Aviation staff doesnt really like publish reports about negative prod uct featuresI suppose fear advertising revenues may sufferbut magazine does pub lish reports Sometimes ask local modelers kit re views because schedule usually pretty full ask objective report good bad features kit just would has worked out well past received Great Planes Ultra Sport 40 kit asked local modeler Bob Boiling review Bob Air Force fighter pilot cur rently flying F-iS flight tests Eglin Air Force Base Besides being engineer hes good RC sport pilot fine builder wel comed opportunity kit reviewand did fine job youll now discover Bob Boilings report follows Ultra Sport 40 Great Planes has topof-the-line price tag rightly very curious know what kit might have jus tify $10995 retail price brought kit home eagerly opened box took first peek first impression very positive like pieces balsa rubberbanded together Small pieces separated sealed plastic bags including generous hardware package full-sized plans rolled box neatly packaged no damage shipping impressive item kit however instruction manual Its complete comprehensive 47-page manual best written Ive seen Theres complete parts list includes pictures diecut parts helps easily identify some obscurely named parts back manual outstanding section flight trimming model reprinted Scale RIC Modeler must beginning advanced sport flier fliers myself includeduntil now have slighted disregarded finer points aircraft trimming tend fly model around bit use trim tabs land give control devises few twists zero out trim leave well complain about problems doing straight pulls loops changes trim throttle changed Mostly thats because just dont know some basic trimming Well its cluded Great Planes manual now theres no excuse construction section manu facturers really make money Ultra Sport 40 features no-kidding step-by-step construction start finish have ever built Heathkit youll appreciate well thought out organization can perform couple steps walk away week often jump right back left off step has box check off its complete page has three four clear pictures illustrating particular step being dis cussed pictures enhanced dark lines outlining difficult-to-see items accompa nied labels indicate whats what tips scattered throughout manual Warnings suggestions keep 60 Model Aviation Rado Conoi Sport Aerobatics Ron Van Putte Ill Sleepy Oaks Rd Ft Walton leach FL 32548 Ultra Sport 40 unfinished condition before covering Ultracote Plentiful power pro vided combination 05 40 FP engine Master Airscrew Tru-Turn spinner Wing panel Bob Boilings Ultra Sport 40 under construction corner part com prehensIve construction manual including reprint Scale RC Modeler flight trimming Bob Boilings son Robbie sitting proudly next fathers new Ultra Sport 40 Please notice Eglin Aero Modelers pit area has carpets protection foreign object damage 2 piece Plug-In Wing Design Detailed Lightweight Epoxy Fiberglass Fuselage & Cowing Clear Canopy & Aluminum Landing Gear Balsa/Foam Wng Stab & Rudder Ply Foamss & Wng Joining Tubes y & Fast Consuobon GNarukesSjlqflt ST IPIC Lange 54 g 4. 644 eq ENUNE 920 20 oi 4-o4a . 9 2 ognI Cranfiled l0hp Conilnental 10-3601) built Cranfield College Technology spedfications drawn up Neil Williams Lightweight Epoxy Fiberglass Fuselage & Cowling Balsa/Foam Wng Stab & Rudder Clear Canopy P Formers & Fast Conuobon yau Ioaldng fo pni model Exoallant Flying & Handling Qia-soteriado Quick Corwmuction mal & Operate Ideal AMA/FAi & around Sport Flying Easy uansportauon 2 peca wing design] Surpass Miss Beetle answei jy~ Miss Beetle IPEC LagS 25 Wng k- BAA eq ENUNI 920a 20 60. Cl ai 2-gai Bauc Semi-Built 1/4 Seals ArobaclcModels Laear200/72$19500$35500 Sukhoi SU26M / 77. 2450039500 Cranfield A-I / 602450039500 isbolo / 842650042500 Pattern Models Jekyll$20500 Slant ST19000 lisa Beetle19000 ,rpaes Beetle16500 $36500 35000 35000 31500 HEcopter Bade Black Shark$22500 ir Jet22500 Calif ares Resident add 71/4% Sale Tax builder going astray also plentiful wouldnt suggest aircraft ginning RCer instruction manual appropri ate building levels followed step ex acfly written no trouble building straight true airframe design airplane itself strong clean pleasing lines fuselage parts interlock making relatively easy put gether center section rugged built-up wing reinforced fuselage die-cut parts cleanly precisely cut kit two small problems couple parts h-in ply firewall about eighth inch too long needed little sanding fit properly unfortu nate since kitmakers gone trouble bevel edge angle fit fuselage exactly other problem showed up time glue fuselage nose sides plans called fabricating sides x 3 x 8in piece balsa Unfortunately piece labeled parts list nose side x x 8 ina little too narrow use Since check parts list confirmed %-in balsa indeed specified rather wider piece actually needed suspect typo packing materials list responsible minor errors didnt signif icantly detract kit thats outstanding over wish pieces closely shaped what actually needed lot square rectangular blocks balsa required considerable rough shaping usable Perhaps preshaping pieces would make kit prohibitively expensive surely would speed building ample space radio mounting installed Futaba 9VAP radio Id gotten 10-year anniversary present wife us ing mounting technique shown plans plans call 40 45 two-stroke en gine 05 40 FP went ahead used adequate think something little pizzazz would appropriate finished model Ultracoteprimar ily black gray sunbursts silver pinstrip ing looks pretty good sure soaks up heat Florida sun big day first flight finally came brought out model received some approv ing comments fellow modelers helped boost confidence first flight always nerve-racking especially Ive spent great deal time construction first step always take picture just case disaster strikes first flight fueled up started taxied Out Some engine trouble caused couple aborted takeoffs increased anxiety Finally after some needle valve fiddling taxied back out firewalled throttle speed built up rotated took air Miraculously no trim required Aerody namically craft tracked straight first guess pays particular about wing warp incidence angles etc stressed instructions Ive now started trimming process Out lined back manual flies flies well Rolls axial knife-edge flight no problem Ultra Sport 40 good build ing flying airplane give two thumbs up Thanks Bob Im sure everyone will agree Continued page 171 December 1990 61 -I SUKHOI SU-26M 114 scale Wing Span 90 Ideal 120 [4-cycle] 15cc 30cc [2-cycle] CRANFIELD A-I 114 scale Surpass Miss Beetle WEt La,gli 55" ~e ST k. 250 eq EnSUE Ideal 70 ao 4-cycle Chip Hydes Jekyll WEC Le0h5Ta-55WaAree-77Oeqe EIInNL B see 1l 2de RC Scale/Foley Continued page 167 Championships must-see Scale events country As writing loca tions Nats Scalemasters have announced However Top Gun scheduled May 2-5 1991 Palm Beach Polo Club West Palm Beach FL site will best yet first-class accommodations permanent bleachers spectators super-nice field also possibility cosponsorship major airline addresses companies men tioned article Model Engineering 401 South Front Street Raleigh NC 27658 Sig Man ufacturing Co Inc PO Box 58306 Monte zuma IA 50171 RC Aerobatics/Van Putte Continued page 61 Bob did fine job once product will come Out grabs attention fliers across coun try Fliers will buy droves year after its introduced cant imagine get along Tm-Turn spinners good ex ample Romco Manufacturings Bob Obenberger brought some Tm-Turn samples Nats Lake Charles early 1980s within year spinners become standard RC Pattern now have another product breakthrough hands check Nats RC Pattern ma trix youll see top competitors years contest used APC propellers Pattern fliers fussy fickle buy what works well desert good product heartbeat bet ter comes out Last year few competitors used funnylooking APC props fliers made jokes expense curious thing happened Pattern fliers noted several top competitors using newer props Bill Cunningham Chris Lakin good examples took good hard look Thats large numbers APC props began sold de spite reports prop failures early prob lems prop failures solved havent heard such mishaps lately redesigning prop shape B-10 present C-2 version APC has improved al ready great prop propellers quiet produce remarkable thrust aircraft flight conditions P81AACn$50 8008408488001800400 SF30031S 401255 SF400418 001255 SF5001653200-001570 RESOS0523200-I1075 SF750TVC5232 ScaB 1075 3105 5p~o 4~I3216 uscoIe down side sharpness trail ing edge near prop hub usually use starter periodic hand cranking occasionally gives cut finger unless take piece 280400-grit emery cloth trailing edge near hub Thats small price pay superior prop really big bonuses using APC props beyond performance price availability Theyre like lot Pattern spe cialty items have special ordered single source outrageous prices Virtually good hobby shops have havent tried APC props should RC Old-Timers/Mathews Continued page 63 president Jim Adams mentions library ing set up Gene Wallock provide members reprints articles etc pre-WV II model publications Additionally longawaited list SAM officially approved model de signs both Gas Scale will available members makes two new reasons join society way Jim happens have drawings available two early deBolt RCsthe 1954 Over Under mdder-only design sym metrical section airfoil kit version deBolt called Sonic Cruiser Over Under intended 19 power Sonic Cruis er 29 engines drawings both show elevators brave heart priced reasonable $5 drawings avail able Jim Adams 2538 Spurgeon St Santa Ana CA 92706 Tools trade Im fortunate having long-standing source worn-out Iris scissors Kelly hemostats #25 Bard Parker handles Own lucky recommend Hobby Craft Instruments 9279 Cody Overland Park KS 66214 tel 1-913/492-1898 source new reasonably priced surgical struments havent used good knife till youve used #25 blade No 4 handle RC Scale Duration Bob Lonseth has discovered some additions list eligible designs Unlimited Scale Duration originally published Aeroneers newsletter recently printed column follows 44-in-span Eurocoupe published March 1943 Model Airplane News 48-in-span Monocoupe 90 October 1942 Air Trails 42-inspan Curtiss 0-52 published Model Airplane News September 1942 Aeronews editor Jim Alaback reproduced - Cesare de Robenis Cesare de Robertis Secretary SAM Italia offers pictorial guide engines East bloc Filled interesting Informa tion See text order Hobby Craft Instruments good bet reasonably priced surgical-grade tools trade Earl Stahl article recent issue 1944 Air Trails Annual excellent material anyone interested RC Scale Duration other reason new SAM library such December 1990 171 fleM Texas RC Slow Only $4495 Winner Combat Technology Now Radio Control 4 34 Channels 4 25-30 Engines 4 Adaptable 10. 15 40-45s 4 Rugged & Easy build 448 span 460 sq Dealer Inquiries Welcome Send $100 Catalog Combat Goodies OREHOU 760 Waltonvifle Rd Humnielatown PA 17036 717 566-3810 DUAL STRUT NICKEL PLATED NOSE GEAR 70 5,. /5 Ii AOL Fulls Tooling PO Box 95 Chanpaign IL 61824 urn ou p n n o artoI plotter FOILED AGAIN! PLOT AIRFOiLS IN ANY CHORD UP TO 24 INCHES MODIFY THiCKNEss CAMBER & TRAILING EDGE PLOT SKIN THiCKNESS FORsHEErED WINGS ENTER DATA EASILY VIA INTELUGENT EDITOR USER-FRIENDLY MENU-DRIVEN OPERATION INCLUDES il-PAGE ILLUSTRATED U5ER MANUAL $4500 CA 8. 0808 p185880058IZZv- nags. IBMPCIXCIAV compaUbI flflfll 8800 88fl JO US$58A conphJa enS 00 matOx 50500 SI comes, 53001 5058 0000 008092558000 525o Sr OAkS Sesa 058001 money 00W02 CYGNET Software714 496-6961 24843 Del Prado #141B Dana Point CA 92629 IMOTORID4LE4 Una breve guida alla produz o4scromotur parsi dei Pallo d a 2 22 2222 1 422 1 PRICE LIST SURGICAL GRADE INSTRUMENTS FOR MODELING AIRPLANES S RDABLE SOURCE GE SURGICAL GRADE INSTRUMENTS FOR TOE SI GD EL AND CRAFT HOBBYIST lobby ClaP 1051050101151 074 EssAy GscLnd Thssk ES 16214 II 492-5085 1 21