WELCOME TO exciting world Slope Soaring Now long last will column deals exclusively planes sites contests ideas RC Slope Soaring help form letters photos stories ideas innova tions etc can make column great success bring Slope Soaring fore front RC Soaring fraternity being first Slope Soaring col umn have yet receive reader input will simply discuss few favorite areas aspects Slope Soaring First would like introduce self am junior San Jose State Univer sity majoring aviation have volved RC Soaring about 10 years have actively involved Sailplane design about half time re cently formed Aero-Mark Designs through am kitting few designs Al though spend time flying various sites northern/central California have opportunity fly better-known sites west coast hope visit sites throughout Left category adaptable Slope Soaring Sitar Special better candidates Although principally designed F3B would certainly make outstanding slope racer Photo Solent Sailpianes catalog Right Nisus built Ed Holder outstanding 1 1/a-meter slope racer new class slope racing rapidly growing popularity See column info event Left one-meter Mariah featured construction article last month another excellent performer 1 1/2-meter racing Mark says has larger version works Right youve ever thought going after world speed record model airplanes heres man ma chine youre going have beat Meet Warner Sitar shown just prior launch 245 yes thats two hundred forty five mph speed run record has stood since late 1970s Werner captured Dassel model Plc Solent Sailplane catalog 44 Model Aviation Radio Conoi Slope Soaring Mark Triebes 2O74 Krelsler Ct Saratoga CA 95070 Mark nigniignts nis own Scimitar months column Its versatile multi-task Sailplane either slope thermal competition spans two meters weights about 30 country near future Although majority slope fliers spend time just going out flying fun competition alive well slope Without doubt exciting aspects Slope Soaring Soaring matter slope racing sight four Sailplanes flying closed course maximum velocity say least quite thrilling Competitive Slope flying confined US either following article South Bay Soaring Society newslet ter Silent Flyer gives pretty good de scription what slope racing like Eu rope entitled Slope Gliding Den mark written Purben Norholm leading Danish Sloper Believe Denmark RC / slope gliding popular RC con test same true Norway Sweden Iceland slope gliding contest class Slopers also North ern Germany since North Sea Cup Britain included club found British follow F3F slope soaring rules instead have Pylon Racesfour pilots racing against other tried during last North Sea Cupfour British pilots against four Scandinavians two qualification heats final very fascinating watch unfortunately produced two midairs three totaled airplanes KContinued page 134____________________________________ July 1988 45 Scimitars wingevatron control system wings pivot provide control both pitch roll Scimitar exemplifies latest low-drag RC Sailplane design Carry Largest Only Stock Kraft Parts World.. Kraft alive working KRAFT MIDWEST Audiorized warranty samba ILL FLY WHAT Ft FREQUENCY CONVERSION $1000 Diocoont Regoler Rper[CRAFT Moat Make end Models Converted Toning Done Speotnin Analyzer Also Service ACE U/C Fiiiii SIa izi Only Full Time Servicenter Midwest 117 East Main St Northvil le Michin 48167 Phone 1-313-348-0085 CA MASK CA glue works wonders buIldIng models right Unfortunately gives enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies MODELERS FIGHT-BACK TRUE-FACTS NEWSLE1TER Tired being ignored editors Fed up never having questions answered FIGHT BACK Join us fer letter year This is reader written publication open letter communication between fellow madelers Send $550 YOUR letter approximatelylSO words typed printed classified intereat opinion $300 recieve copy $550 pub letter & recieve espy $1950 far 4 issues etc 1 yr First lasue date4th ef July 1958 Quarterly July Oct Jan. April eeoee**eoooooo*oon**eo*eo****oo***ee**o***oe* Advertising Section buainoas card B&W enly$20/iaoue ThE PTERANOOON PRESS ANE P0 SOX 3050 OAKLAND CA 54es0 0055 Curtiss Jenny * Quality hand-cut kit complete plans rigging scale control setup wire parts pre-bent special hardware included parts individually indentified packaged Decals Major Decal * Engine sizes 20 40 FS 25 TS * Wing unit removes four screws less 3 minutes flying wires left intact * Superb flight characteristics Introductory Price 12500 VISA erCard y Order Michigan residents add 4% sales tax Add $550 P&H US orders $1250 foreign Video Catalog $1250 Ipoat mci VHS/Beta 95 rebate return tape kit order Reg catalog sample mini-plan -$2 Hand-Cut Quality Affordable Price AERODROME MODELS LTD 2623 S Miller Rd 27Y__Saginaw MI 48603 517 781-3000 Other Kits Available Aero-Pacer Baby -Pacer Gipsy Moth Flybaby Flybaby Combo Hawker Hurricane Jester Table 2 PERFORMANCE SUMMARY SIX ASTRO COBALT iSa data average six motors RPM Voltage Current Power Mm/Max Psvr voltsampswattswatts 900077846461/68 tO000871028885/91 ItOCO98123119113/127 12000109146156150/168 13000120173204t97/220 ance spread relatively narrow included averages can also tell voltages currents super ferrites right line cobalt averages listing should useful would like know 15 cobalt super ferrite stacks up need run motor measure brush terminal volt age current prop rpmor two parametersand youll know yours com pares speed control installation easy range numbers may compared Fi nally seriously interested modelers can add versatility info smoothly graphing thereby having possible numbers range look As matter historic technical interest operating conditions voltage current power eight Astro cobalts super fer rites virtually indistinguishable other far performance concerned motor No 9my very old black back 15 power inputs various rpm levels exactly like newer motors input voltages currents quite different nothing bad about Its just earlier days Electric brushes commutators couldnt take heat motors wound operate higher voltages lower currents Thus good ol 15 normally used 16 cells lower currents todays iSs nor mally used 12 cells higher currents Bat tery cost driven cell count cell size same flight performance can say newer motors use cheaper batteries So much discussion Later well take look some performance information iSs various other propsand geared ver sions well Meanwhile upwards 200 watts comfortable capability 15and especially cobalt 15 because its lighter weightis good size consideration larger power system special request goes out person New York think 1987 KRC Electric Fly spent entire weekend tripod-mounted video camera youre reading please get touch Please forward comments questions photos SASE please address given very top column Happy Quiet Landings Everyone RC Aerobatics/ Van Putte Continued page 43 wrote Some months ago assembled Ace R/C Digipace kit Having amateur radio operator over 40 years Ive assembled kits well having laid out etched several boards relating RTTY particular kit should avoided experienced builder Anyone interested Digipace would be-well advised pay $10 difference tween mail order kit assembled tested unit reasons saying thistoo include letter would like assemble kit have enclosed tip sheet Ive put together tip sheet available anyone SASE Write RJ Pinkerton 2500 ONeal Circle Birmingham AL 35226 tip sheet RC Slope Soaring/Triebes Continued page 45 F3F slope racing rules use pilot stands center 330ft course After launch pilot has 30 sec onds get plane course Ten laps timed winner round re ceives 1000 points yes its exactly like F3B Speed contest has minimum 5 maximum 10 rounds throw-out round Its very simple CD infinitely difficult competi tor Fast runs good weather range 50 60 seconds best performance North Sea Cup 454 seconds 22 mph winds wind direction 20 side Danish record 403 seconds 40 mph winds slopes Denmark Swe den mostly coastside cliffs some 110 200 ft high 450 steep very clean have same type slopes southwest coast Norway also use inland mountains 4000 ft high night last summer flew F3B model hour two such slope Norway together 22 Norwegian Swedish pilotsno midairs typical Danish slope racer has twistwing ailerons flaps coupled elevator no brakes Wingspans average eight 81/2 ft use modified Eppler 180 374 airfoils E374 thinned 85% 10% reflex top E180 ten flattened popular airfoil used Den mark Thy Combination E180 root E374 tips thinned 10% Turn ing techniques less ballast name Speed game race highest winds loading 13 15 oz/sq ft unballasted 18 20 ozIsq ft bal lasted FUN what about Most magazines print technical organiza tional details slope gliding Northern Europe little said about great fun have must way share enjoyment sport certainly agree what Purben say ing whole reason us volved sport pure fun thrill want column dry technical report although will defi nitely contain some technical material rather means slope fliers around country world communicate ideas stories am really looking forward Slopers out send ing stories humorous exciting ser ious otherwise photos can shared other Slopers 134 Model Aviation Wa SUNSHINE HOBBY READY TO FLY Call 1-800-45-TO FLY ACCESSORIES INCLUDED PIPER CHEROKEE-40$12999 PIPER CHEROKEE-2510899 FOKKER E111-4011999 FANCY STICK-4tJ11499 FANCY STICK-256999 CESSNA 172-2010899 CONDOR-40L11999 TERCEL-4512199 ENGINE NOT INCLUDED PIONEER CAR$6000 ENGINE INCLUDED 17221 South Western Avenue Gardena California 90247 CONTACT us FOR THIS MONTHS 5PECIAL around country interested will International Slope Race held Denmark sometime 1989 number fliers west coast have expressed interest competing inter ested going spectator compet itor contact will let know can get some info F3F rules provide disci plined certainly organized form slope competition lacks excitement true race US Britain races head-to-head compe titions between numerous fliers two five determined number laps usu ally 8 10 over closed course 400 500 ft results truly exciting form competition both competitors spectators Midairs inevitable type racing usually re sult careless over-exuberant flying can avoided cases happens experienced fliers say thats just part racing new trend slope racing starting appear trend toward smaller Sailplanes can fly considerably lighter winds considerably less expensive Unlimited-type racer FM limits Unlimited Class Racing allow wing load ings up 254 ozIsq ft results very large three meters very expensive Sailplanes race held California about month ago 1 A-meter Sailplanes what have heard very successful equally exciting standard racing conditions fairly light because lightness planes still possi ble hold competition really believe aspect slope racing can ex pand popularity certainly good way beginning racer gain some ex perience type flying mini mal investment Sailplane appeared bestof-class event Nisus designed Mark Allen features truly gorgeous fiberglass fuselage foam wings obechi veneer sheeting outstand ing performance have opportu nity fly yet have flown have truly impressed Right now have details its availa bility time article printed kits should market Another form competition slope com bat recently chance watch dem onstration slope combat would like share what learned con cept originally started out attempt pilot cut ribbon trailing other Sailplane may started out what has evolved allout take-no-prisoners form destruction derby procedure quite simple Everyone launches last remain ing air winner reality tempt knock everybody elses Sailplane out air incurring least amount damage own plane knocked down have three minutes repair plane get airborne pop ular technique center-punch other plane approaching behind higher speed climbing above imple menting split-S Visualize am sure can see its effectiveness type competition undeniably brutal everyone especially like fly Sailplanes once number kits being developed just type competition such Cheetah num ber power scale slope planes want emphasize type flying should done volunteer basis go out center-punch someones $600 ASW DG definitely asking trouble Something would like column feature Sailplane kit slope fliers out can get good idea just what available Any sug gestions Sailplanes think truly outstanding deserve shared other fliers would greatly appreci ated months Sailplane Scimitar Designed yours truly available through Aero-Mark Designs Scimitar versatile multitask Sailplane ideal thermal slope competition Without aile rons flaps drag-producing hinge lines accompany Scimitars wing visually aerodynamically clean quality achievable because novative wingevatoron control system wings pivoting control both pitch roll Scimitar exemplifies latest RC Sailplane design Sales pitch aside Scimitar truly outstanding Sail plane very smooth stable respon sive Construction Scimitar pretty simple fuselage fairly straightfor ward box construction wings builtup fully sheeted tail balsa sheeting Despite simplicity construc tion very strong can hold up 2 lb ballast strong winds Kits avail able directly $75 plus $8 shipping Thats about month hope will receiving lots stories photos ideas fellow Slopers out RC Scale/Wischers Continued page 47 per styrene blade has rigidly mounted controlled cant wander off its circular path solution problem construct homemade tool carrier clamped cutter end bar using setscrew bar alu minum could made either brass steel too having rectangular cross section about 375 has slot adjustment cen ter post bars slot made milling cutter could made drilling row closely spaced holes grinding out interven ing material rattail file slot dimen sioned fit 10-32 thread brass steel center post having diame ter about 375 turned down Continued page 138 II THE LEADER IN COMPETITION DIA 13 14 15 16 PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION 10 TO 20% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 534 634 72833/456 8334568 8Ia4566/27 94566/77/ 1045667 106W8W 10SEW Ii 46777A78 ii 5W Ii 6EW 1167 12 4W 12 5W 12 56 13 56 14 56 15 56 16 4/N 16 678 RC PYLON RACING SERIES 500 DIA PITCHPRICE 7 5N5N 8I 6778 SERIES 400C 86677/7 977A7 W WIDE BLADE EW EXTRA WIDE N MAAAAW July 1988 135 PROPELLERS SERIES lUll THP DESIGN TAILORED HELICAL PITCH DEVELOPED TO GIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP PRICE 6677A8 677/ 8 6778 67 678 NEW
Edition: Model Aviation - 1988/07
Page Numbers: 44, 45, 134, 135
WELCOME TO exciting world Slope Soaring Now long last will column deals exclusively planes sites contests ideas RC Slope Soaring help form letters photos stories ideas innova tions etc can make column great success bring Slope Soaring fore front RC Soaring fraternity being first Slope Soaring col umn have yet receive reader input will simply discuss few favorite areas aspects Slope Soaring First would like introduce self am junior San Jose State Univer sity majoring aviation have volved RC Soaring about 10 years have actively involved Sailplane design about half time re cently formed Aero-Mark Designs through am kitting few designs Al though spend time flying various sites northern/central California have opportunity fly better-known sites west coast hope visit sites throughout Left category adaptable Slope Soaring Sitar Special better candidates Although principally designed F3B would certainly make outstanding slope racer Photo Solent Sailpianes catalog Right Nisus built Ed Holder outstanding 1 1/a-meter slope racer new class slope racing rapidly growing popularity See column info event Left one-meter Mariah featured construction article last month another excellent performer 1 1/2-meter racing Mark says has larger version works Right youve ever thought going after world speed record model airplanes heres man ma chine youre going have beat Meet Warner Sitar shown just prior launch 245 yes thats two hundred forty five mph speed run record has stood since late 1970s Werner captured Dassel model Plc Solent Sailplane catalog 44 Model Aviation Radio Conoi Slope Soaring Mark Triebes 2O74 Krelsler Ct Saratoga CA 95070 Mark nigniignts nis own Scimitar months column Its versatile multi-task Sailplane either slope thermal competition spans two meters weights about 30 country near future Although majority slope fliers spend time just going out flying fun competition alive well slope Without doubt exciting aspects Slope Soaring Soaring matter slope racing sight four Sailplanes flying closed course maximum velocity say least quite thrilling Competitive Slope flying confined US either following article South Bay Soaring Society newslet ter Silent Flyer gives pretty good de scription what slope racing like Eu rope entitled Slope Gliding Den mark written Purben Norholm leading Danish Sloper Believe Denmark RC / slope gliding popular RC con test same true Norway Sweden Iceland slope gliding contest class Slopers also North ern Germany since North Sea Cup Britain included club found British follow F3F slope soaring rules instead have Pylon Racesfour pilots racing against other tried during last North Sea Cupfour British pilots against four Scandinavians two qualification heats final very fascinating watch unfortunately produced two midairs three totaled airplanes KContinued page 134____________________________________ July 1988 45 Scimitars wingevatron control system wings pivot provide control both pitch roll Scimitar exemplifies latest low-drag RC Sailplane design Carry Largest Only Stock Kraft Parts World.. Kraft alive working KRAFT MIDWEST Audiorized warranty samba ILL FLY WHAT Ft FREQUENCY CONVERSION $1000 Diocoont Regoler Rper[CRAFT Moat Make end Models Converted Toning Done Speotnin Analyzer Also Service ACE U/C Fiiiii SIa izi Only Full Time Servicenter Midwest 117 East Main St Northvil le Michin 48167 Phone 1-313-348-0085 CA MASK CA glue works wonders buIldIng models right Unfortunately gives enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies MODELERS FIGHT-BACK TRUE-FACTS NEWSLE1TER Tired being ignored editors Fed up never having questions answered FIGHT BACK Join us fer letter year This is reader written publication open letter communication between fellow madelers Send $550 YOUR letter approximatelylSO words typed printed classified intereat opinion $300 recieve copy $550 pub letter & recieve espy $1950 far 4 issues etc 1 yr First lasue date4th ef July 1958 Quarterly July Oct Jan. April eeoee**eoooooo*oon**eo*eo****oo***ee**o***oe* Advertising Section buainoas card B&W enly$20/iaoue ThE PTERANOOON PRESS ANE P0 SOX 3050 OAKLAND CA 54es0 0055 Curtiss Jenny * Quality hand-cut kit complete plans rigging scale control setup wire parts pre-bent special hardware included parts individually indentified packaged Decals Major Decal * Engine sizes 20 40 FS 25 TS * Wing unit removes four screws less 3 minutes flying wires left intact * Superb flight characteristics Introductory Price 12500 VISA erCard y Order Michigan residents add 4% sales tax Add $550 P&H US orders $1250 foreign Video Catalog $1250 Ipoat mci VHS/Beta 95 rebate return tape kit order Reg catalog sample mini-plan -$2 Hand-Cut Quality Affordable Price AERODROME MODELS LTD 2623 S Miller Rd 27Y__Saginaw MI 48603 517 781-3000 Other Kits Available Aero-Pacer Baby -Pacer Gipsy Moth Flybaby Flybaby Combo Hawker Hurricane Jester Table 2 PERFORMANCE SUMMARY SIX ASTRO COBALT iSa data average six motors RPM Voltage Current Power Mm/Max Psvr voltsampswattswatts 900077846461/68 tO000871028885/91 ItOCO98123119113/127 12000109146156150/168 13000120173204t97/220 ance spread relatively narrow included averages can also tell voltages currents super ferrites right line cobalt averages listing should useful would like know 15 cobalt super ferrite stacks up need run motor measure brush terminal volt age current prop rpmor two parametersand youll know yours com pares speed control installation easy range numbers may compared Fi nally seriously interested modelers can add versatility info smoothly graphing thereby having possible numbers range look As matter historic technical interest operating conditions voltage current power eight Astro cobalts super fer rites virtually indistinguishable other far performance concerned motor No 9my very old black back 15 power inputs various rpm levels exactly like newer motors input voltages currents quite different nothing bad about Its just earlier days Electric brushes commutators couldnt take heat motors wound operate higher voltages lower currents Thus good ol 15 normally used 16 cells lower currents todays iSs nor mally used 12 cells higher currents Bat tery cost driven cell count cell size same flight performance can say newer motors use cheaper batteries So much discussion Later well take look some performance information iSs various other propsand geared ver sions well Meanwhile upwards 200 watts comfortable capability 15and especially cobalt 15 because its lighter weightis good size consideration larger power system special request goes out person New York think 1987 KRC Electric Fly spent entire weekend tripod-mounted video camera youre reading please get touch Please forward comments questions photos SASE please address given very top column Happy Quiet Landings Everyone RC Aerobatics/ Van Putte Continued page 43 wrote Some months ago assembled Ace R/C Digipace kit Having amateur radio operator over 40 years Ive assembled kits well having laid out etched several boards relating RTTY particular kit should avoided experienced builder Anyone interested Digipace would be-well advised pay $10 difference tween mail order kit assembled tested unit reasons saying thistoo include letter would like assemble kit have enclosed tip sheet Ive put together tip sheet available anyone SASE Write RJ Pinkerton 2500 ONeal Circle Birmingham AL 35226 tip sheet RC Slope Soaring/Triebes Continued page 45 F3F slope racing rules use pilot stands center 330ft course After launch pilot has 30 sec onds get plane course Ten laps timed winner round re ceives 1000 points yes its exactly like F3B Speed contest has minimum 5 maximum 10 rounds throw-out round Its very simple CD infinitely difficult competi tor Fast runs good weather range 50 60 seconds best performance North Sea Cup 454 seconds 22 mph winds wind direction 20 side Danish record 403 seconds 40 mph winds slopes Denmark Swe den mostly coastside cliffs some 110 200 ft high 450 steep very clean have same type slopes southwest coast Norway also use inland mountains 4000 ft high night last summer flew F3B model hour two such slope Norway together 22 Norwegian Swedish pilotsno midairs typical Danish slope racer has twistwing ailerons flaps coupled elevator no brakes Wingspans average eight 81/2 ft use modified Eppler 180 374 airfoils E374 thinned 85% 10% reflex top E180 ten flattened popular airfoil used Den mark Thy Combination E180 root E374 tips thinned 10% Turn ing techniques less ballast name Speed game race highest winds loading 13 15 oz/sq ft unballasted 18 20 ozIsq ft bal lasted FUN what about Most magazines print technical organiza tional details slope gliding Northern Europe little said about great fun have must way share enjoyment sport certainly agree what Purben say ing whole reason us volved sport pure fun thrill want column dry technical report although will defi nitely contain some technical material rather means slope fliers around country world communicate ideas stories am really looking forward Slopers out send ing stories humorous exciting ser ious otherwise photos can shared other Slopers 134 Model Aviation Wa SUNSHINE HOBBY READY TO FLY Call 1-800-45-TO FLY ACCESSORIES INCLUDED PIPER CHEROKEE-40$12999 PIPER CHEROKEE-2510899 FOKKER E111-4011999 FANCY STICK-4tJ11499 FANCY STICK-256999 CESSNA 172-2010899 CONDOR-40L11999 TERCEL-4512199 ENGINE NOT INCLUDED PIONEER CAR$6000 ENGINE INCLUDED 17221 South Western Avenue Gardena California 90247 CONTACT us FOR THIS MONTHS 5PECIAL around country interested will International Slope Race held Denmark sometime 1989 number fliers west coast have expressed interest competing inter ested going spectator compet itor contact will let know can get some info F3F rules provide disci plined certainly organized form slope competition lacks excitement true race US Britain races head-to-head compe titions between numerous fliers two five determined number laps usu ally 8 10 over closed course 400 500 ft results truly exciting form competition both competitors spectators Midairs inevitable type racing usually re sult careless over-exuberant flying can avoided cases happens experienced fliers say thats just part racing new trend slope racing starting appear trend toward smaller Sailplanes can fly considerably lighter winds considerably less expensive Unlimited-type racer FM limits Unlimited Class Racing allow wing load ings up 254 ozIsq ft results very large three meters very expensive Sailplanes race held California about month ago 1 A-meter Sailplanes what have heard very successful equally exciting standard racing conditions fairly light because lightness planes still possi ble hold competition really believe aspect slope racing can ex pand popularity certainly good way beginning racer gain some ex perience type flying mini mal investment Sailplane appeared bestof-class event Nisus designed Mark Allen features truly gorgeous fiberglass fuselage foam wings obechi veneer sheeting outstand ing performance have opportu nity fly yet have flown have truly impressed Right now have details its availa bility time article printed kits should market Another form competition slope com bat recently chance watch dem onstration slope combat would like share what learned con cept originally started out attempt pilot cut ribbon trailing other Sailplane may started out what has evolved allout take-no-prisoners form destruction derby procedure quite simple Everyone launches last remain ing air winner reality tempt knock everybody elses Sailplane out air incurring least amount damage own plane knocked down have three minutes repair plane get airborne pop ular technique center-punch other plane approaching behind higher speed climbing above imple menting split-S Visualize am sure can see its effectiveness type competition undeniably brutal everyone especially like fly Sailplanes once number kits being developed just type competition such Cheetah num ber power scale slope planes want emphasize type flying should done volunteer basis go out center-punch someones $600 ASW DG definitely asking trouble Something would like column feature Sailplane kit slope fliers out can get good idea just what available Any sug gestions Sailplanes think truly outstanding deserve shared other fliers would greatly appreci ated months Sailplane Scimitar Designed yours truly available through Aero-Mark Designs Scimitar versatile multitask Sailplane ideal thermal slope competition Without aile rons flaps drag-producing hinge lines accompany Scimitars wing visually aerodynamically clean quality achievable because novative wingevatoron control system wings pivoting control both pitch roll Scimitar exemplifies latest RC Sailplane design Sales pitch aside Scimitar truly outstanding Sail plane very smooth stable respon sive Construction Scimitar pretty simple fuselage fairly straightfor ward box construction wings builtup fully sheeted tail balsa sheeting Despite simplicity construc tion very strong can hold up 2 lb ballast strong winds Kits avail able directly $75 plus $8 shipping Thats about month hope will receiving lots stories photos ideas fellow Slopers out RC Scale/Wischers Continued page 47 per styrene blade has rigidly mounted controlled cant wander off its circular path solution problem construct homemade tool carrier clamped cutter end bar using setscrew bar alu minum could made either brass steel too having rectangular cross section about 375 has slot adjustment cen ter post bars slot made milling cutter could made drilling row closely spaced holes grinding out interven ing material rattail file slot dimen sioned fit 10-32 thread brass steel center post having diame ter about 375 turned down Continued page 138 II THE LEADER IN COMPETITION DIA 13 14 15 16 PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION 10 TO 20% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 534 634 72833/456 8334568 8Ia4566/27 94566/77/ 1045667 106W8W 10SEW Ii 46777A78 ii 5W Ii 6EW 1167 12 4W 12 5W 12 56 13 56 14 56 15 56 16 4/N 16 678 RC PYLON RACING SERIES 500 DIA PITCHPRICE 7 5N5N 8I 6778 SERIES 400C 86677/7 977A7 W WIDE BLADE EW EXTRA WIDE N MAAAAW July 1988 135 PROPELLERS SERIES lUll THP DESIGN TAILORED HELICAL PITCH DEVELOPED TO GIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP PRICE 6677A8 677/ 8 6778 67 678 NEW
Edition: Model Aviation - 1988/07
Page Numbers: 44, 45, 134, 135
WELCOME TO exciting world Slope Soaring Now long last will column deals exclusively planes sites contests ideas RC Slope Soaring help form letters photos stories ideas innova tions etc can make column great success bring Slope Soaring fore front RC Soaring fraternity being first Slope Soaring col umn have yet receive reader input will simply discuss few favorite areas aspects Slope Soaring First would like introduce self am junior San Jose State Univer sity majoring aviation have volved RC Soaring about 10 years have actively involved Sailplane design about half time re cently formed Aero-Mark Designs through am kitting few designs Al though spend time flying various sites northern/central California have opportunity fly better-known sites west coast hope visit sites throughout Left category adaptable Slope Soaring Sitar Special better candidates Although principally designed F3B would certainly make outstanding slope racer Photo Solent Sailpianes catalog Right Nisus built Ed Holder outstanding 1 1/a-meter slope racer new class slope racing rapidly growing popularity See column info event Left one-meter Mariah featured construction article last month another excellent performer 1 1/2-meter racing Mark says has larger version works Right youve ever thought going after world speed record model airplanes heres man ma chine youre going have beat Meet Warner Sitar shown just prior launch 245 yes thats two hundred forty five mph speed run record has stood since late 1970s Werner captured Dassel model Plc Solent Sailplane catalog 44 Model Aviation Radio Conoi Slope Soaring Mark Triebes 2O74 Krelsler Ct Saratoga CA 95070 Mark nigniignts nis own Scimitar months column Its versatile multi-task Sailplane either slope thermal competition spans two meters weights about 30 country near future Although majority slope fliers spend time just going out flying fun competition alive well slope Without doubt exciting aspects Slope Soaring Soaring matter slope racing sight four Sailplanes flying closed course maximum velocity say least quite thrilling Competitive Slope flying confined US either following article South Bay Soaring Society newslet ter Silent Flyer gives pretty good de scription what slope racing like Eu rope entitled Slope Gliding Den mark written Purben Norholm leading Danish Sloper Believe Denmark RC / slope gliding popular RC con test same true Norway Sweden Iceland slope gliding contest class Slopers also North ern Germany since North Sea Cup Britain included club found British follow F3F slope soaring rules instead have Pylon Racesfour pilots racing against other tried during last North Sea Cupfour British pilots against four Scandinavians two qualification heats final very fascinating watch unfortunately produced two midairs three totaled airplanes KContinued page 134____________________________________ July 1988 45 Scimitars wingevatron control system wings pivot provide control both pitch roll Scimitar exemplifies latest low-drag RC Sailplane design Carry Largest Only Stock Kraft Parts World.. Kraft alive working KRAFT MIDWEST Audiorized warranty samba ILL FLY WHAT Ft FREQUENCY CONVERSION $1000 Diocoont Regoler Rper[CRAFT Moat Make end Models Converted Toning Done Speotnin Analyzer Also Service ACE U/C Fiiiii SIa izi Only Full Time Servicenter Midwest 117 East Main St Northvil le Michin 48167 Phone 1-313-348-0085 CA MASK CA glue works wonders buIldIng models right Unfortunately gives enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies MODELERS FIGHT-BACK TRUE-FACTS NEWSLE1TER Tired being ignored editors Fed up never having questions answered FIGHT BACK Join us fer letter year This is reader written publication open letter communication between fellow madelers Send $550 YOUR letter approximatelylSO words typed printed classified intereat opinion $300 recieve copy $550 pub letter & recieve espy $1950 far 4 issues etc 1 yr First lasue date4th ef July 1958 Quarterly July Oct Jan. April eeoee**eoooooo*oon**eo*eo****oo***ee**o***oe* Advertising Section buainoas card B&W enly$20/iaoue ThE PTERANOOON PRESS ANE P0 SOX 3050 OAKLAND CA 54es0 0055 Curtiss Jenny * Quality hand-cut kit complete plans rigging scale control setup wire parts pre-bent special hardware included parts individually indentified packaged Decals Major Decal * Engine sizes 20 40 FS 25 TS * Wing unit removes four screws less 3 minutes flying wires left intact * Superb flight characteristics Introductory Price 12500 VISA erCard y Order Michigan residents add 4% sales tax Add $550 P&H US orders $1250 foreign Video Catalog $1250 Ipoat mci VHS/Beta 95 rebate return tape kit order Reg catalog sample mini-plan -$2 Hand-Cut Quality Affordable Price AERODROME MODELS LTD 2623 S Miller Rd 27Y__Saginaw MI 48603 517 781-3000 Other Kits Available Aero-Pacer Baby -Pacer Gipsy Moth Flybaby Flybaby Combo Hawker Hurricane Jester Table 2 PERFORMANCE SUMMARY SIX ASTRO COBALT iSa data average six motors RPM Voltage Current Power Mm/Max Psvr voltsampswattswatts 900077846461/68 tO000871028885/91 ItOCO98123119113/127 12000109146156150/168 13000120173204t97/220 ance spread relatively narrow included averages can also tell voltages currents super ferrites right line cobalt averages listing should useful would like know 15 cobalt super ferrite stacks up need run motor measure brush terminal volt age current prop rpmor two parametersand youll know yours com pares speed control installation easy range numbers may compared Fi nally seriously interested modelers can add versatility info smoothly graphing thereby having possible numbers range look As matter historic technical interest operating conditions voltage current power eight Astro cobalts super fer rites virtually indistinguishable other far performance concerned motor No 9my very old black back 15 power inputs various rpm levels exactly like newer motors input voltages currents quite different nothing bad about Its just earlier days Electric brushes commutators couldnt take heat motors wound operate higher voltages lower currents Thus good ol 15 normally used 16 cells lower currents todays iSs nor mally used 12 cells higher currents Bat tery cost driven cell count cell size same flight performance can say newer motors use cheaper batteries So much discussion Later well take look some performance information iSs various other propsand geared ver sions well Meanwhile upwards 200 watts comfortable capability 15and especially cobalt 15 because its lighter weightis good size consideration larger power system special request goes out person New York think 1987 KRC Electric Fly spent entire weekend tripod-mounted video camera youre reading please get touch Please forward comments questions photos SASE please address given very top column Happy Quiet Landings Everyone RC Aerobatics/ Van Putte Continued page 43 wrote Some months ago assembled Ace R/C Digipace kit Having amateur radio operator over 40 years Ive assembled kits well having laid out etched several boards relating RTTY particular kit should avoided experienced builder Anyone interested Digipace would be-well advised pay $10 difference tween mail order kit assembled tested unit reasons saying thistoo include letter would like assemble kit have enclosed tip sheet Ive put together tip sheet available anyone SASE Write RJ Pinkerton 2500 ONeal Circle Birmingham AL 35226 tip sheet RC Slope Soaring/Triebes Continued page 45 F3F slope racing rules use pilot stands center 330ft course After launch pilot has 30 sec onds get plane course Ten laps timed winner round re ceives 1000 points yes its exactly like F3B Speed contest has minimum 5 maximum 10 rounds throw-out round Its very simple CD infinitely difficult competi tor Fast runs good weather range 50 60 seconds best performance North Sea Cup 454 seconds 22 mph winds wind direction 20 side Danish record 403 seconds 40 mph winds slopes Denmark Swe den mostly coastside cliffs some 110 200 ft high 450 steep very clean have same type slopes southwest coast Norway also use inland mountains 4000 ft high night last summer flew F3B model hour two such slope Norway together 22 Norwegian Swedish pilotsno midairs typical Danish slope racer has twistwing ailerons flaps coupled elevator no brakes Wingspans average eight 81/2 ft use modified Eppler 180 374 airfoils E374 thinned 85% 10% reflex top E180 ten flattened popular airfoil used Den mark Thy Combination E180 root E374 tips thinned 10% Turn ing techniques less ballast name Speed game race highest winds loading 13 15 oz/sq ft unballasted 18 20 ozIsq ft bal lasted FUN what about Most magazines print technical organiza tional details slope gliding Northern Europe little said about great fun have must way share enjoyment sport certainly agree what Purben say ing whole reason us volved sport pure fun thrill want column dry technical report although will defi nitely contain some technical material rather means slope fliers around country world communicate ideas stories am really looking forward Slopers out send ing stories humorous exciting ser ious otherwise photos can shared other Slopers 134 Model Aviation Wa SUNSHINE HOBBY READY TO FLY Call 1-800-45-TO FLY ACCESSORIES INCLUDED PIPER CHEROKEE-40$12999 PIPER CHEROKEE-2510899 FOKKER E111-4011999 FANCY STICK-4tJ11499 FANCY STICK-256999 CESSNA 172-2010899 CONDOR-40L11999 TERCEL-4512199 ENGINE NOT INCLUDED PIONEER CAR$6000 ENGINE INCLUDED 17221 South Western Avenue Gardena California 90247 CONTACT us FOR THIS MONTHS 5PECIAL around country interested will International Slope Race held Denmark sometime 1989 number fliers west coast have expressed interest competing inter ested going spectator compet itor contact will let know can get some info F3F rules provide disci plined certainly organized form slope competition lacks excitement true race US Britain races head-to-head compe titions between numerous fliers two five determined number laps usu ally 8 10 over closed course 400 500 ft results truly exciting form competition both competitors spectators Midairs inevitable type racing usually re sult careless over-exuberant flying can avoided cases happens experienced fliers say thats just part racing new trend slope racing starting appear trend toward smaller Sailplanes can fly considerably lighter winds considerably less expensive Unlimited-type racer FM limits Unlimited Class Racing allow wing load ings up 254 ozIsq ft results very large three meters very expensive Sailplanes race held California about month ago 1 A-meter Sailplanes what have heard very successful equally exciting standard racing conditions fairly light because lightness planes still possi ble hold competition really believe aspect slope racing can ex pand popularity certainly good way beginning racer gain some ex perience type flying mini mal investment Sailplane appeared bestof-class event Nisus designed Mark Allen features truly gorgeous fiberglass fuselage foam wings obechi veneer sheeting outstand ing performance have opportu nity fly yet have flown have truly impressed Right now have details its availa bility time article printed kits should market Another form competition slope com bat recently chance watch dem onstration slope combat would like share what learned con cept originally started out attempt pilot cut ribbon trailing other Sailplane may started out what has evolved allout take-no-prisoners form destruction derby procedure quite simple Everyone launches last remain ing air winner reality tempt knock everybody elses Sailplane out air incurring least amount damage own plane knocked down have three minutes repair plane get airborne pop ular technique center-punch other plane approaching behind higher speed climbing above imple menting split-S Visualize am sure can see its effectiveness type competition undeniably brutal everyone especially like fly Sailplanes once number kits being developed just type competition such Cheetah num ber power scale slope planes want emphasize type flying should done volunteer basis go out center-punch someones $600 ASW DG definitely asking trouble Something would like column feature Sailplane kit slope fliers out can get good idea just what available Any sug gestions Sailplanes think truly outstanding deserve shared other fliers would greatly appreci ated months Sailplane Scimitar Designed yours truly available through Aero-Mark Designs Scimitar versatile multitask Sailplane ideal thermal slope competition Without aile rons flaps drag-producing hinge lines accompany Scimitars wing visually aerodynamically clean quality achievable because novative wingevatoron control system wings pivoting control both pitch roll Scimitar exemplifies latest RC Sailplane design Sales pitch aside Scimitar truly outstanding Sail plane very smooth stable respon sive Construction Scimitar pretty simple fuselage fairly straightfor ward box construction wings builtup fully sheeted tail balsa sheeting Despite simplicity construc tion very strong can hold up 2 lb ballast strong winds Kits avail able directly $75 plus $8 shipping Thats about month hope will receiving lots stories photos ideas fellow Slopers out RC Scale/Wischers Continued page 47 per styrene blade has rigidly mounted controlled cant wander off its circular path solution problem construct homemade tool carrier clamped cutter end bar using setscrew bar alu minum could made either brass steel too having rectangular cross section about 375 has slot adjustment cen ter post bars slot made milling cutter could made drilling row closely spaced holes grinding out interven ing material rattail file slot dimen sioned fit 10-32 thread brass steel center post having diame ter about 375 turned down Continued page 138 II THE LEADER IN COMPETITION DIA 13 14 15 16 PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION 10 TO 20% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 534 634 72833/456 8334568 8Ia4566/27 94566/77/ 1045667 106W8W 10SEW Ii 46777A78 ii 5W Ii 6EW 1167 12 4W 12 5W 12 56 13 56 14 56 15 56 16 4/N 16 678 RC PYLON RACING SERIES 500 DIA PITCHPRICE 7 5N5N 8I 6778 SERIES 400C 86677/7 977A7 W WIDE BLADE EW EXTRA WIDE N MAAAAW July 1988 135 PROPELLERS SERIES lUll THP DESIGN TAILORED HELICAL PITCH DEVELOPED TO GIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP PRICE 6677A8 677/ 8 6778 67 678 NEW
Edition: Model Aviation - 1988/07
Page Numbers: 44, 45, 134, 135
WELCOME TO exciting world Slope Soaring Now long last will column deals exclusively planes sites contests ideas RC Slope Soaring help form letters photos stories ideas innova tions etc can make column great success bring Slope Soaring fore front RC Soaring fraternity being first Slope Soaring col umn have yet receive reader input will simply discuss few favorite areas aspects Slope Soaring First would like introduce self am junior San Jose State Univer sity majoring aviation have volved RC Soaring about 10 years have actively involved Sailplane design about half time re cently formed Aero-Mark Designs through am kitting few designs Al though spend time flying various sites northern/central California have opportunity fly better-known sites west coast hope visit sites throughout Left category adaptable Slope Soaring Sitar Special better candidates Although principally designed F3B would certainly make outstanding slope racer Photo Solent Sailpianes catalog Right Nisus built Ed Holder outstanding 1 1/a-meter slope racer new class slope racing rapidly growing popularity See column info event Left one-meter Mariah featured construction article last month another excellent performer 1 1/2-meter racing Mark says has larger version works Right youve ever thought going after world speed record model airplanes heres man ma chine youre going have beat Meet Warner Sitar shown just prior launch 245 yes thats two hundred forty five mph speed run record has stood since late 1970s Werner captured Dassel model Plc Solent Sailplane catalog 44 Model Aviation Radio Conoi Slope Soaring Mark Triebes 2O74 Krelsler Ct Saratoga CA 95070 Mark nigniignts nis own Scimitar months column Its versatile multi-task Sailplane either slope thermal competition spans two meters weights about 30 country near future Although majority slope fliers spend time just going out flying fun competition alive well slope Without doubt exciting aspects Slope Soaring Soaring matter slope racing sight four Sailplanes flying closed course maximum velocity say least quite thrilling Competitive Slope flying confined US either following article South Bay Soaring Society newslet ter Silent Flyer gives pretty good de scription what slope racing like Eu rope entitled Slope Gliding Den mark written Purben Norholm leading Danish Sloper Believe Denmark RC / slope gliding popular RC con test same true Norway Sweden Iceland slope gliding contest class Slopers also North ern Germany since North Sea Cup Britain included club found British follow F3F slope soaring rules instead have Pylon Racesfour pilots racing against other tried during last North Sea Cupfour British pilots against four Scandinavians two qualification heats final very fascinating watch unfortunately produced two midairs three totaled airplanes KContinued page 134____________________________________ July 1988 45 Scimitars wingevatron control system wings pivot provide control both pitch roll Scimitar exemplifies latest low-drag RC Sailplane design Carry Largest Only Stock Kraft Parts World.. Kraft alive working KRAFT MIDWEST Audiorized warranty samba ILL FLY WHAT Ft FREQUENCY CONVERSION $1000 Diocoont Regoler Rper[CRAFT Moat Make end Models Converted Toning Done Speotnin Analyzer Also Service ACE U/C Fiiiii SIa izi Only Full Time Servicenter Midwest 117 East Main St Northvil le Michin 48167 Phone 1-313-348-0085 CA MASK CA glue works wonders buIldIng models right Unfortunately gives enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies MODELERS FIGHT-BACK TRUE-FACTS NEWSLE1TER Tired being ignored editors Fed up never having questions answered FIGHT BACK Join us fer letter year This is reader written publication open letter communication between fellow madelers Send $550 YOUR letter approximatelylSO words typed printed classified intereat opinion $300 recieve copy $550 pub letter & recieve espy $1950 far 4 issues etc 1 yr First lasue date4th ef July 1958 Quarterly July Oct Jan. April eeoee**eoooooo*oon**eo*eo****oo***ee**o***oe* Advertising Section buainoas card B&W enly$20/iaoue ThE PTERANOOON PRESS ANE P0 SOX 3050 OAKLAND CA 54es0 0055 Curtiss Jenny * Quality hand-cut kit complete plans rigging scale control setup wire parts pre-bent special hardware included parts individually indentified packaged Decals Major Decal * Engine sizes 20 40 FS 25 TS * Wing unit removes four screws less 3 minutes flying wires left intact * Superb flight characteristics Introductory Price 12500 VISA erCard y Order Michigan residents add 4% sales tax Add $550 P&H US orders $1250 foreign Video Catalog $1250 Ipoat mci VHS/Beta 95 rebate return tape kit order Reg catalog sample mini-plan -$2 Hand-Cut Quality Affordable Price AERODROME MODELS LTD 2623 S Miller Rd 27Y__Saginaw MI 48603 517 781-3000 Other Kits Available Aero-Pacer Baby -Pacer Gipsy Moth Flybaby Flybaby Combo Hawker Hurricane Jester Table 2 PERFORMANCE SUMMARY SIX ASTRO COBALT iSa data average six motors RPM Voltage Current Power Mm/Max Psvr voltsampswattswatts 900077846461/68 tO000871028885/91 ItOCO98123119113/127 12000109146156150/168 13000120173204t97/220 ance spread relatively narrow included averages can also tell voltages currents super ferrites right line cobalt averages listing should useful would like know 15 cobalt super ferrite stacks up need run motor measure brush terminal volt age current prop rpmor two parametersand youll know yours com pares speed control installation easy range numbers may compared Fi nally seriously interested modelers can add versatility info smoothly graphing thereby having possible numbers range look As matter historic technical interest operating conditions voltage current power eight Astro cobalts super fer rites virtually indistinguishable other far performance concerned motor No 9my very old black back 15 power inputs various rpm levels exactly like newer motors input voltages currents quite different nothing bad about Its just earlier days Electric brushes commutators couldnt take heat motors wound operate higher voltages lower currents Thus good ol 15 normally used 16 cells lower currents todays iSs nor mally used 12 cells higher currents Bat tery cost driven cell count cell size same flight performance can say newer motors use cheaper batteries So much discussion Later well take look some performance information iSs various other propsand geared ver sions well Meanwhile upwards 200 watts comfortable capability 15and especially cobalt 15 because its lighter weightis good size consideration larger power system special request goes out person New York think 1987 KRC Electric Fly spent entire weekend tripod-mounted video camera youre reading please get touch Please forward comments questions photos SASE please address given very top column Happy Quiet Landings Everyone RC Aerobatics/ Van Putte Continued page 43 wrote Some months ago assembled Ace R/C Digipace kit Having amateur radio operator over 40 years Ive assembled kits well having laid out etched several boards relating RTTY particular kit should avoided experienced builder Anyone interested Digipace would be-well advised pay $10 difference tween mail order kit assembled tested unit reasons saying thistoo include letter would like assemble kit have enclosed tip sheet Ive put together tip sheet available anyone SASE Write RJ Pinkerton 2500 ONeal Circle Birmingham AL 35226 tip sheet RC Slope Soaring/Triebes Continued page 45 F3F slope racing rules use pilot stands center 330ft course After launch pilot has 30 sec onds get plane course Ten laps timed winner round re ceives 1000 points yes its exactly like F3B Speed contest has minimum 5 maximum 10 rounds throw-out round Its very simple CD infinitely difficult competi tor Fast runs good weather range 50 60 seconds best performance North Sea Cup 454 seconds 22 mph winds wind direction 20 side Danish record 403 seconds 40 mph winds slopes Denmark Swe den mostly coastside cliffs some 110 200 ft high 450 steep very clean have same type slopes southwest coast Norway also use inland mountains 4000 ft high night last summer flew F3B model hour two such slope Norway together 22 Norwegian Swedish pilotsno midairs typical Danish slope racer has twistwing ailerons flaps coupled elevator no brakes Wingspans average eight 81/2 ft use modified Eppler 180 374 airfoils E374 thinned 85% 10% reflex top E180 ten flattened popular airfoil used Den mark Thy Combination E180 root E374 tips thinned 10% Turn ing techniques less ballast name Speed game race highest winds loading 13 15 oz/sq ft unballasted 18 20 ozIsq ft bal lasted FUN what about Most magazines print technical organiza tional details slope gliding Northern Europe little said about great fun have must way share enjoyment sport certainly agree what Purben say ing whole reason us volved sport pure fun thrill want column dry technical report although will defi nitely contain some technical material rather means slope fliers around country world communicate ideas stories am really looking forward Slopers out send ing stories humorous exciting ser ious otherwise photos can shared other Slopers 134 Model Aviation Wa SUNSHINE HOBBY READY TO FLY Call 1-800-45-TO FLY ACCESSORIES INCLUDED PIPER CHEROKEE-40$12999 PIPER CHEROKEE-2510899 FOKKER E111-4011999 FANCY STICK-4tJ11499 FANCY STICK-256999 CESSNA 172-2010899 CONDOR-40L11999 TERCEL-4512199 ENGINE NOT INCLUDED PIONEER CAR$6000 ENGINE INCLUDED 17221 South Western Avenue Gardena California 90247 CONTACT us FOR THIS MONTHS 5PECIAL around country interested will International Slope Race held Denmark sometime 1989 number fliers west coast have expressed interest competing inter ested going spectator compet itor contact will let know can get some info F3F rules provide disci plined certainly organized form slope competition lacks excitement true race US Britain races head-to-head compe titions between numerous fliers two five determined number laps usu ally 8 10 over closed course 400 500 ft results truly exciting form competition both competitors spectators Midairs inevitable type racing usually re sult careless over-exuberant flying can avoided cases happens experienced fliers say thats just part racing new trend slope racing starting appear trend toward smaller Sailplanes can fly considerably lighter winds considerably less expensive Unlimited-type racer FM limits Unlimited Class Racing allow wing load ings up 254 ozIsq ft results very large three meters very expensive Sailplanes race held California about month ago 1 A-meter Sailplanes what have heard very successful equally exciting standard racing conditions fairly light because lightness planes still possi ble hold competition really believe aspect slope racing can ex pand popularity certainly good way beginning racer gain some ex perience type flying mini mal investment Sailplane appeared bestof-class event Nisus designed Mark Allen features truly gorgeous fiberglass fuselage foam wings obechi veneer sheeting outstand ing performance have opportu nity fly yet have flown have truly impressed Right now have details its availa bility time article printed kits should market Another form competition slope com bat recently chance watch dem onstration slope combat would like share what learned con cept originally started out attempt pilot cut ribbon trailing other Sailplane may started out what has evolved allout take-no-prisoners form destruction derby procedure quite simple Everyone launches last remain ing air winner reality tempt knock everybody elses Sailplane out air incurring least amount damage own plane knocked down have three minutes repair plane get airborne pop ular technique center-punch other plane approaching behind higher speed climbing above imple menting split-S Visualize am sure can see its effectiveness type competition undeniably brutal everyone especially like fly Sailplanes once number kits being developed just type competition such Cheetah num ber power scale slope planes want emphasize type flying should done volunteer basis go out center-punch someones $600 ASW DG definitely asking trouble Something would like column feature Sailplane kit slope fliers out can get good idea just what available Any sug gestions Sailplanes think truly outstanding deserve shared other fliers would greatly appreci ated months Sailplane Scimitar Designed yours truly available through Aero-Mark Designs Scimitar versatile multitask Sailplane ideal thermal slope competition Without aile rons flaps drag-producing hinge lines accompany Scimitars wing visually aerodynamically clean quality achievable because novative wingevatoron control system wings pivoting control both pitch roll Scimitar exemplifies latest RC Sailplane design Sales pitch aside Scimitar truly outstanding Sail plane very smooth stable respon sive Construction Scimitar pretty simple fuselage fairly straightfor ward box construction wings builtup fully sheeted tail balsa sheeting Despite simplicity construc tion very strong can hold up 2 lb ballast strong winds Kits avail able directly $75 plus $8 shipping Thats about month hope will receiving lots stories photos ideas fellow Slopers out RC Scale/Wischers Continued page 47 per styrene blade has rigidly mounted controlled cant wander off its circular path solution problem construct homemade tool carrier clamped cutter end bar using setscrew bar alu minum could made either brass steel too having rectangular cross section about 375 has slot adjustment cen ter post bars slot made milling cutter could made drilling row closely spaced holes grinding out interven ing material rattail file slot dimen sioned fit 10-32 thread brass steel center post having diame ter about 375 turned down Continued page 138 II THE LEADER IN COMPETITION DIA 13 14 15 16 PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION 10 TO 20% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 534 634 72833/456 8334568 8Ia4566/27 94566/77/ 1045667 106W8W 10SEW Ii 46777A78 ii 5W Ii 6EW 1167 12 4W 12 5W 12 56 13 56 14 56 15 56 16 4/N 16 678 RC PYLON RACING SERIES 500 DIA PITCHPRICE 7 5N5N 8I 6778 SERIES 400C 86677/7 977A7 W WIDE BLADE EW EXTRA WIDE N MAAAAW July 1988 135 PROPELLERS SERIES lUll THP DESIGN TAILORED HELICAL PITCH DEVELOPED TO GIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP PRICE 6677A8 677/ 8 6778 67 678 NEW