Free Flight Indoor Bud Tenny Box 545 RIchardson TX 75080 HOW MANY Indoor fliers depends ask September 1988 issue AMAs National Newsletter showed membership statistics 120960 members certain time during 1988 2002 Free Flight ers 261 Indoor fliers Now lets see just good contests About one-fourth Indoor fliers AMA 61 entered Indoor Virginia Nats over one-third 135 flew Johnson City last year Typically Texas sort Indoor de sert first 1989 Dallas/Ft Worth Indoor contest 7% AMA members entered Finally Indoor News Views over 20-year span typically has reached about onefourth U S Indoor fliers currently has just over 300 US subscribers guess suddenly got lot wider coverage AMA comments ended note statistics presented food thought Maybe should end comments same way What Indoor flier anyway dont know what official AMA definition seems everyone flies Indoor events sanctioned contests Indoor flier Just because someone also flies FF CL RC does keep him being Indoor flier way could own count Indoor fliers someone AMAsanctioned Indoor contest send pho tocopy entrant list could compile list AMA number count up Now time NFFS member F-A Top View -A Section or Tennys scheme storing hoops microfilm later use column got see some really neat drawings worlds largest Indoor-type modelthe humanpowered Daedalus airplane October 88 issue NFFS Digest arent member can keep missing outor can join NFFS Continued page 174 72 Model Aviation LLid Box11 0-00-0IhO0]000-00-0 *j \p details technique covering surfaces new thin plastic films film sags badly L after dihedral added wing covered its flat Bud cures sag R carefully slitting film using strip paper tool lift excess film over rib will soon giued thinned white carpenters glue wishes dried glue less unsightlybut works well 118-INCH3648 318-INCH3648 1181/808113/Sn 3182737 1/831161115318 n 1123041 11811413173/8 0 3/44460 1/80 3/81621 1/801/21724_____________________ 1/803/42533 3/18-INCH3048 3/18 3/181317 3/18 01/41419 3/18 3181621 3/16 ol/21825 3/16 0 3/42838 BALSA WOOD STICKS 1/16-INCH3640 1/1801/1808 1/1603/3207 1/181/80811 1/1631160913 1/16x1/41015 1/1603181317 1/181/21620 1/1803142128 3/32-INCH3648 1/4-INCH3848 3/32 3/320811 1/4 ii 1/41821 3/32 01/808131/403181825 3/3203/1610151/40 1/22129 3/32 0 1/413161/4 0 3143142 3/3203181419 3/320 1/21821 3/32 0 3142431 Double Balsa Wood Prices Spruce Basswood Sticks 5/18-INCH3848 5/18 ii 5/162027 5/1603/82230 5/18 o 1/22738 5/1603143952 1/2-INCH3640 1/201/23749 1/2 0 3149270 TRIANGULAR CUT BALSA 1/401/403624 3/8o3/8s3629 1/201/203637 3/4031403647 10103681 BALSA PLANKS 3/4s3036178 102036164 o3o36230 1 odo38303 202036230 203038329 204038484 3s3o38490 304038680 TAIBI BALSA SHEETS 1-INCH3648 1/18012736 3/32 0 13840 1/8013344 3/180 13749 1/4014157 3/8 0 15372 1/2018588 2-INCH3648 1/32023040 1/16023848 3/32 s 24154 1/8024880 3/18 s 25472 1/4028384 3/8s277103 1/302113150 3-INCH3848 1/32034053 1/16034358 3/32 0 35270 1/8036080 3/16037295 1/40384112 5/1603103134 3/803120160 1/203150200 4-INCH3648 1/32 0 46587 1/160473101 3/320482109 1/80495128 3/1604114151 1/404131193 3/804182271 1/2 04219320 BIRCH PLYWOOD 1/640120121751/40601274 1/64o12o243501/4o12o12146 1/640120407201/4012024293 1/6404004028001/4012048580 1/320606493/8012012180 1/32012012973/8o12o24360 1/32s 120241943/8o 12048720 1/320 12040388 _________________1/2 0 120 12202 1/16o6s124912o12o24405 1/16n12n1297l/2o12o48809 1/160 12024164 1/160 12040388 3/320601275 3/32120 12150 3/32 012024300 3/32 012 0 40608 1/80601282 1/8o12o12164 1/80 12024328 1/8012040656 3/16o6s1274 3/16o12012146 3/16 012024293 3/16 012048580 LITE PLYWOOD 1/801201258 1/80 12024112 1/8012040224 TAPERED TRAILING EDGE3648 1/80 1/22230 3/1603142940 1/40 14255 5/160 ir/s4461 3/8015272 Superior Aircraft Materials 12020-G Centralia iian Gardens California 90716 865-3220 Handling Charge-$500 $300 COD mum Order $2000 accept Personal Checks COD fornia Residents add 6% Sales Tax Consistently locked-up ie no auto surfac es model could Bob White has done years mount fuse stab trailing edge No lines no bending booms want use remote DT either fuse timer auto anything will have run some lines through boom solution route lines down center boom way line tension wont tend bend boom up down sideways last two models added t balsa bulkhead about three inches back inside big end boom small block scrap balsa added center 3/3 hole drilled through center ran piece Teflon tubing down through hole top boom just behind tube/boom joint tub ing makes gentle S-curve down through hole bulkhead DT line braided Da cron fishing line runs through tubing straight down center boom Plastic balsa No Im talking about old Aerogloss stuff red tube still make Ratlser Im talking about Rohacell Its rig id foam plastic material can used instead balsa modeling applications Former FlA World Champ Matt Gewain wife Gail run Composite Structures Technology sell Rohacell small quantities well some other high-tech modeling supplies Recently sent few samples play first glance material looks much like familiar pink blue extruded polystyrene foams used insulating houses Rohacell bright white feels much stiffer less spongy polystyrene foams fact compression modulus Rohacell about six times polystyrene close balsa Rohacell comes two densities thinner sheets 10 15 2mni 31 lb per cubic foot thicker stuff 3mm up 2 19 pcf European modelers have using Rohacell over 10 years now Two main construction techniques have developed system uses top bottom wing skins formed thin Rohacell spar inside skins formed jigs shaped match either upper lower airfoil curvature laminated epoxy-impregnated lightweight glass cloth both sides Rohacell skin way theres no need ribs other method involves carving sanding solid wing out thicker Rohacell adding spar covering both top bottom sur faces glass cloth Kevlar Theres very complete description latter method Heiko Rapp-Wurm National Free Flight Societys 1988 Symposium Rohacell can also used conven tional construction example thin Rohacell ribs capped thin carbon fiber will lighter stiffer conventional balsa ribs since theres no grain ribs can cut out sheet minlmum waste Unlike other plastic foams Rohacell affected cyanoacrylate adhesives dope polyester resin melt polystyrene foams Like plastic foam though need use adhesive hardens evapora tion such cyano epoxy thin cyano glue tried seemed take forever set thick stuff little better sure miss being able assemble things add glue didnt try accelerator might speed things up Unlike polystyrene foams Rohacell cant cut using hot wire Supposedly some deadly gas released material easy enough shape sandpaper biggest drawback Rohacell cost stuff expensive example 1 x 2-ft sheet 1mm $850 1 x 2 sheet l-in-thick foam $2850 plus shipping informa tion price list write Composite Structures Technology 3701 Inglewood Ave #268 Re dondo Beach CA 90278-1110 way also carry hard-to-find one-ounce-per-squareyard Kevlar cloth just thought Id pass along obseervation last team selection finals Matt nlfty portable weather station set up momtol wind speed direction Im sure about thc brand two sources similar equip ment Magnaphase Industries Inc 1502 Pike St NW Auburn WA 98001 Wind Weather Albion Street Water Tower PO Box 2320 Mendocino CA 95460 ELECTRIC SEMI-SCALE Radio Control Sport/Trainer Wing Spas 87 3/4 Length 37 1/2 PAUL K GUILLOW INC WAKEFIELD MA 01880 FF Indoor/Tenny Continued page 72 Send $15 $750 age 18 under NFFS 6146 East Cactus Wren Rd Scottsdale AZ 85253 FF Indoor fliers really owe selves support NFFSthe organization sponsors both FF Indoor contests Also dont forget Digest Sympo annual Free Flight Symposium Report two publi cationS make lot good material available us Spealting Free Flight Digest Editor Bob Meuser needs articlesboth FF Indoor Send input Bob 4200 Gregory St Oakland CA 94619 big show coming again 1989 United 174 Model Aviation TWO NEW FLIGHT BOXES Cowoletelo assewbled finished Made USA Both top qaalitp wood construclion Two torso drawers Unique drawer locks Swoll hoc 0 pluo shipping Large Son $12500 plus shippino includes fuel cowpartwentbatlery/power panel cowpartwentad/usfahle fuseluon cradles Mocep hank guarantee Seed $1 opens call 415 3637732 Inane oressuoc Fltghts Fancy erowodefiop P0 Son La Honda Ca 94020 Agressor R F high quality balsa Plywood firn fly airplane Covered Monokote can easily repaired should need like foam ARFs Agressor very competitive Fun Fly events also available built order $14995 plus $SP & H Just add engine tank$11995 radio go Flyplus $12WP&H CRENSHAW AERO 423W Washington Shelbyville IN 46176 1-800-999-4133-00096 M-F till 400 pm ICSTI 317-392-1726 After 500 pm Weekends States Indoor Championship set June 1-4 1989 Johnson City TN have flown Minidome fleidhouse Univer sity East Tennessee aware top four five sites world prestigious Indoor meet world may hotly contested also Twenty official events some unofficial events schedule Send #10 SASE USIC 1655 Revere Dr Brookfield WI 53005 get details entry blank isnt fun anymore quit Bill Baker original editor Okie Free Flight Flyer began issue #34 mailed January 7 1989 comment Bills efforts have helped Indoor FF Old-Timer folks keep up world several years promised issue #35 thats end Microfilm storage box time mi crofilm pouringat least always works better winter have microfilm hoops different sizes storage space premium Figure 1 shows solution highdensity storage hardest part job find ing box right size figure sketches box 31 long inside dimension about right length FAI wings maie seven hoops about ter box about 1 narrower boxs depth sketch gives basic mounting techniquea V 14 x 34 x 1-in strips glued box ends supports bottom edge hoop top same strips placed paral lel hoop about % clearance clearance stored hoops can rattle around too much less clearance makes haz ardous insert remove hoops Covering plastic films superlight films now being used Pennyplanes Easy B Intermediate Stick can difficult work because tendency toward static cling floating free slightest breeze film has two major advantages weight halfway between condenser paper microfilm stronger dimensionally stable con denser paper Covering techniques used microfilm con denser paper will work chose CP technique cut piece film about 2 larger sur face both directions taped edges work surface Although unsightly greatly thinned white carpenters glue works well adhesive wing upside down film began cen ter trailing edge worked toward both tips gluing trailing edge film Since left leading edge up air trimmed glued part TE loose allowing wing begin dropping onto film As wing outline contacted file stuck down Eventually TE propped up LE would touch film gluing After trimming rest outline stuck ribs film point covering snug mostly smoothuntil dihedral installed photos shows resulting slack film cut loose just outside dihedral rib other photo shows slip paper slot paper allowed work loose edge up over rib smooth out wrinkles before gluing down result similar three-piece cover ing except requires no special fixtures P-24 model have seen P-24 Con dor models fly flew very well mod els used Denver Area Indoor Model Airplane Association special classes aero nautical engineering freshmen University Colorado After seeing action can see success rate highthe model stable flew slowly enough easily control lable Anyone interested holding model build ing classes should evaluate model avail able Mace Model Aircraft Company 359 South 119th East Ave Tulsa OK 74128 phone 918-437-5490 Contests flying sessions Thanks newsletters information presented below CDs can give about 11 weeks advance notice will list activities first possi ble issue California Santa Ana Santa Ana hangar being refurbished availabil ity will limited uncertain first weekend month will sanctioned just case con tact Curt Stevens 25108 Marguerite Parkway Mission Viejo CA 92692 phone 714 240-8433 about particular session California San Diego Monthly sessions Cat I Howard Haupt 3860 Ecochee Ave San Diego CA 92117 Colorado Denver Contact Les Shaw phone 303 499-0946 session sched ules Connecti- Glastonbury George Armstead 89 P8OP like take easySets Up 60 8800nd6 ZUP u-u Sneuters fully eel oontelned otion NO loOg sturdy steel tube rip over NO oentePO NO ropee t fall ,8lUSlle miniature airoraft * sturdY fade resiSt8tt Red Blue nylOfl toP plus UPCHECK OR MO iWflttACIV eIde1 acid u% SSSSt John peck Leigur 2~o%3d Ltd MAA 32S7 AMA e55~-eeillea KY 4O3S WA NNA RACE Q-500F-iFAI BEGINNER RACES Instructions Club Programs NORTHEAST AREA Information Contact North East Pylon Racing Organization 119 Dean Aye Franklin Mass 02038 50815284043 14011739-2653 176 Model Aviation K K 49span 45length 4 channel trical wing Engine35-SO2cy 45-6S4cy Red silver trim k cockpit Performance Hobbies Helicopter Specialist Stainless Steel Bearing Kit Shuttles$5995 Performance Turnbuckle Kits a Hastle Free Adjustment b No Ball Link Plyers Needed C Cones Complete Adjustment Wrench Most kits Start at1295 Best Price Around Complete Test Flown Shuttle Packages Slop Hovering Aroundl Call & Order Today 206 939-4000 z PERFORMANCE HOBBIES Auburn Way N 0 Auburn WA 98002 *orHER OLO AVAILABLE h F U iwaicnea errormance ysiem TOP PERFORMANCE I&B ENGINES Ak9laneMwine K&B FUELSK&B GLOW PLUGS S Blends4 ChoIces Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN KSB SUPER POXY THINNER K&B SUPER POXY PRIMER KaB SUPER POXY PAINT K&B MIXING CUPS Cut Harvest Lane Glastonbury CT 06037 Connecti- Wilton Some sessions have cut scheduled Wilton High School Roger Kleinert 17 Gardiner St Darien CT 06820 phone 203 6551585 Contact Roger additional information Florida Miami Contact Dr John Martin 2180 Tigertail Ave Miami FL 33133 phone 305 858-6363 current schedules GeorgiaAtlanta area Class Indoor Meet Hiawasssee April 2 1989 Contact John Barker phone 404 436-9912 Class AA Indoor Meet Peach State Championships April 22-23 1989 Hiawassee Contact David Mills phone 404 365-8655 IowaCedar Rapids Approximately weekly flying sessions winter 34ft ceiling Contact Paul Mcllrath 1524 48th St Cedar Rapids IA 52402 phone 319 393-4677 Kentucky Louisville Sessions have held Kentucky Air National Guard Hangar Louisville Contact Burr Stanton 9210 Darley Dr Louis ville KY 40241 info about possible sessions Massa- Cambridge Ray Harlan 15 Happy chusetts Hollow Rd Wayland MA 01778 phone 617 358-4013 New Salem area Contest March 12 Hampshire 1989 Phillips Andover Academy Cage off Route 28 930 am-430 pm 40-ft ceiling Pennyplane/ Easy B HLG Bostonian several Scale events Don Walworth phone 603 898-5338 New Glassboro Doug Barber 146 Strat Jersey ton House Maple Shade NJ 08052 phone 609 235-5318 New York Queens Contact Bob Bender 516 248-5118 New York NYC Contact Ed Whitten PO Box 176 Wall St Station New York NY 10005 phone 212 7855327 info about possible flying New York Chappa qua Indoor sessions sched uled approximately two weeks through March 1989 Art Maiden 914 760-3280 914 769-2644 Oklahoma Oklahoma City Sessions Na tional Guard Armory Oklahoma City January 22 February 19 1989 plus March date yet set Jim Belson 4933 NW 29th Okla homa City OK 73129 phone 405 946-1093 Ohio Parma Indoor contest March 12 1989 Normandy High School Contact Mike Zand phone 216 524-3480 Pennsyl- Philadelphia Joe Krush 409 vania Warner Rd Wayne PA 19087 phone 215 688-3927or Doug Barber 146 Stratton House Maple Shade NJ 08052 phone 609 23553 18 Tennessee Chattanooga Indoor contest Chat tanooga March 5 1989 Contact Ollie Barton phone 615 886-1293 Russ Timinons phone 615 26693 10 TennesseeJohnson City U S Indoor Champi onships Minidome cam pus Univ East Tennessee June 1-4 1989 Send #10 SASE USIC 1655 Revere Dr Brookfield WI 53005 obtain flying schedule entry form Texas Ft Worth/Dallas Jesse Shepherd 2713 Summit View Bedford TX 76021 phone 817 282-3770 Utah Salt Lake City Sessions Brighton High School January 4 18 Febru ary 1 15 March 1 15 29 April 12 1989 Rocky Russo 1425 Ken sington Ave Salt Lake City UT 84105 Washing- Seattle Kevin Collins 2320 Saha ton lee Dr E Redmond WA 98023 phone 206 868-8273 responding advertisers mention read about Model Aviation PROPELLERS NEW CYCLE THP DESIGN TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALLTHELATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW DIA PITCH THP PRICE 1266/,71I,8 13877AB 14677/z8 1567 16678 NEW PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION lOTO 20% INCREASE IN THRUST MPG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCH PRICE 534 634 72833/,456 8334S88 845667 9456BM77/z 104566/,7 106W8W 10BEW 114677778 11SW 116EW 111/67 124W 125W 1260 1356 1456 1556 164N* 16676 May1989 177 THE LEADER IN COMPETITION Columbia University p ii
Edition: Model Aviation - 1989/05
Page Numbers: 72, 174, 176, 177
Free Flight Indoor Bud Tenny Box 545 RIchardson TX 75080 HOW MANY Indoor fliers depends ask September 1988 issue AMAs National Newsletter showed membership statistics 120960 members certain time during 1988 2002 Free Flight ers 261 Indoor fliers Now lets see just good contests About one-fourth Indoor fliers AMA 61 entered Indoor Virginia Nats over one-third 135 flew Johnson City last year Typically Texas sort Indoor de sert first 1989 Dallas/Ft Worth Indoor contest 7% AMA members entered Finally Indoor News Views over 20-year span typically has reached about onefourth U S Indoor fliers currently has just over 300 US subscribers guess suddenly got lot wider coverage AMA comments ended note statistics presented food thought Maybe should end comments same way What Indoor flier anyway dont know what official AMA definition seems everyone flies Indoor events sanctioned contests Indoor flier Just because someone also flies FF CL RC does keep him being Indoor flier way could own count Indoor fliers someone AMAsanctioned Indoor contest send pho tocopy entrant list could compile list AMA number count up Now time NFFS member F-A Top View -A Section or Tennys scheme storing hoops microfilm later use column got see some really neat drawings worlds largest Indoor-type modelthe humanpowered Daedalus airplane October 88 issue NFFS Digest arent member can keep missing outor can join NFFS Continued page 174 72 Model Aviation LLid Box11 0-00-0IhO0]000-00-0 *j \p details technique covering surfaces new thin plastic films film sags badly L after dihedral added wing covered its flat Bud cures sag R carefully slitting film using strip paper tool lift excess film over rib will soon giued thinned white carpenters glue wishes dried glue less unsightlybut works well 118-INCH3648 318-INCH3648 1181/808113/Sn 3182737 1/831161115318 n 1123041 11811413173/8 0 3/44460 1/80 3/81621 1/801/21724_____________________ 1/803/42533 3/18-INCH3048 3/18 3/181317 3/18 01/41419 3/18 3181621 3/16 ol/21825 3/16 0 3/42838 BALSA WOOD STICKS 1/16-INCH3640 1/1801/1808 1/1603/3207 1/181/80811 1/1631160913 1/16x1/41015 1/1603181317 1/181/21620 1/1803142128 3/32-INCH3648 1/4-INCH3848 3/32 3/320811 1/4 ii 1/41821 3/32 01/808131/403181825 3/3203/1610151/40 1/22129 3/32 0 1/413161/4 0 3143142 3/3203181419 3/320 1/21821 3/32 0 3142431 Double Balsa Wood Prices Spruce Basswood Sticks 5/18-INCH3848 5/18 ii 5/162027 5/1603/82230 5/18 o 1/22738 5/1603143952 1/2-INCH3640 1/201/23749 1/2 0 3149270 TRIANGULAR CUT BALSA 1/401/403624 3/8o3/8s3629 1/201/203637 3/4031403647 10103681 BALSA PLANKS 3/4s3036178 102036164 o3o36230 1 odo38303 202036230 203038329 204038484 3s3o38490 304038680 TAIBI BALSA SHEETS 1-INCH3648 1/18012736 3/32 0 13840 1/8013344 3/180 13749 1/4014157 3/8 0 15372 1/2018588 2-INCH3648 1/32023040 1/16023848 3/32 s 24154 1/8024880 3/18 s 25472 1/4028384 3/8s277103 1/302113150 3-INCH3848 1/32034053 1/16034358 3/32 0 35270 1/8036080 3/16037295 1/40384112 5/1603103134 3/803120160 1/203150200 4-INCH3648 1/32 0 46587 1/160473101 3/320482109 1/80495128 3/1604114151 1/404131193 3/804182271 1/2 04219320 BIRCH PLYWOOD 1/640120121751/40601274 1/64o12o243501/4o12o12146 1/640120407201/4012024293 1/6404004028001/4012048580 1/320606493/8012012180 1/32012012973/8o12o24360 1/32s 120241943/8o 12048720 1/320 12040388 _________________1/2 0 120 12202 1/16o6s124912o12o24405 1/16n12n1297l/2o12o48809 1/160 12024164 1/160 12040388 3/320601275 3/32120 12150 3/32 012024300 3/32 012 0 40608 1/80601282 1/8o12o12164 1/80 12024328 1/8012040656 3/16o6s1274 3/16o12012146 3/16 012024293 3/16 012048580 LITE PLYWOOD 1/801201258 1/80 12024112 1/8012040224 TAPERED TRAILING EDGE3648 1/80 1/22230 3/1603142940 1/40 14255 5/160 ir/s4461 3/8015272 Superior Aircraft Materials 12020-G Centralia iian Gardens California 90716 865-3220 Handling Charge-$500 $300 COD mum Order $2000 accept Personal Checks COD fornia Residents add 6% Sales Tax Consistently locked-up ie no auto surfac es model could Bob White has done years mount fuse stab trailing edge No lines no bending booms want use remote DT either fuse timer auto anything will have run some lines through boom solution route lines down center boom way line tension wont tend bend boom up down sideways last two models added t balsa bulkhead about three inches back inside big end boom small block scrap balsa added center 3/3 hole drilled through center ran piece Teflon tubing down through hole top boom just behind tube/boom joint tub ing makes gentle S-curve down through hole bulkhead DT line braided Da cron fishing line runs through tubing straight down center boom Plastic balsa No Im talking about old Aerogloss stuff red tube still make Ratlser Im talking about Rohacell Its rig id foam plastic material can used instead balsa modeling applications Former FlA World Champ Matt Gewain wife Gail run Composite Structures Technology sell Rohacell small quantities well some other high-tech modeling supplies Recently sent few samples play first glance material looks much like familiar pink blue extruded polystyrene foams used insulating houses Rohacell bright white feels much stiffer less spongy polystyrene foams fact compression modulus Rohacell about six times polystyrene close balsa Rohacell comes two densities thinner sheets 10 15 2mni 31 lb per cubic foot thicker stuff 3mm up 2 19 pcf European modelers have using Rohacell over 10 years now Two main construction techniques have developed system uses top bottom wing skins formed thin Rohacell spar inside skins formed jigs shaped match either upper lower airfoil curvature laminated epoxy-impregnated lightweight glass cloth both sides Rohacell skin way theres no need ribs other method involves carving sanding solid wing out thicker Rohacell adding spar covering both top bottom sur faces glass cloth Kevlar Theres very complete description latter method Heiko Rapp-Wurm National Free Flight Societys 1988 Symposium Rohacell can also used conven tional construction example thin Rohacell ribs capped thin carbon fiber will lighter stiffer conventional balsa ribs since theres no grain ribs can cut out sheet minlmum waste Unlike other plastic foams Rohacell affected cyanoacrylate adhesives dope polyester resin melt polystyrene foams Like plastic foam though need use adhesive hardens evapora tion such cyano epoxy thin cyano glue tried seemed take forever set thick stuff little better sure miss being able assemble things add glue didnt try accelerator might speed things up Unlike polystyrene foams Rohacell cant cut using hot wire Supposedly some deadly gas released material easy enough shape sandpaper biggest drawback Rohacell cost stuff expensive example 1 x 2-ft sheet 1mm $850 1 x 2 sheet l-in-thick foam $2850 plus shipping informa tion price list write Composite Structures Technology 3701 Inglewood Ave #268 Re dondo Beach CA 90278-1110 way also carry hard-to-find one-ounce-per-squareyard Kevlar cloth just thought Id pass along obseervation last team selection finals Matt nlfty portable weather station set up momtol wind speed direction Im sure about thc brand two sources similar equip ment Magnaphase Industries Inc 1502 Pike St NW Auburn WA 98001 Wind Weather Albion Street Water Tower PO Box 2320 Mendocino CA 95460 ELECTRIC SEMI-SCALE Radio Control Sport/Trainer Wing Spas 87 3/4 Length 37 1/2 PAUL K GUILLOW INC WAKEFIELD MA 01880 FF Indoor/Tenny Continued page 72 Send $15 $750 age 18 under NFFS 6146 East Cactus Wren Rd Scottsdale AZ 85253 FF Indoor fliers really owe selves support NFFSthe organization sponsors both FF Indoor contests Also dont forget Digest Sympo annual Free Flight Symposium Report two publi cationS make lot good material available us Spealting Free Flight Digest Editor Bob Meuser needs articlesboth FF Indoor Send input Bob 4200 Gregory St Oakland CA 94619 big show coming again 1989 United 174 Model Aviation TWO NEW FLIGHT BOXES Cowoletelo assewbled finished Made USA Both top qaalitp wood construclion Two torso drawers Unique drawer locks Swoll hoc 0 pluo shipping Large Son $12500 plus shippino includes fuel cowpartwentbatlery/power panel cowpartwentad/usfahle fuseluon cradles Mocep hank guarantee Seed $1 opens call 415 3637732 Inane oressuoc Fltghts Fancy erowodefiop P0 Son La Honda Ca 94020 Agressor R F high quality balsa Plywood firn fly airplane Covered Monokote can easily repaired should need like foam ARFs Agressor very competitive Fun Fly events also available built order $14995 plus $SP & H Just add engine tank$11995 radio go Flyplus $12WP&H CRENSHAW AERO 423W Washington Shelbyville IN 46176 1-800-999-4133-00096 M-F till 400 pm ICSTI 317-392-1726 After 500 pm Weekends States Indoor Championship set June 1-4 1989 Johnson City TN have flown Minidome fleidhouse Univer sity East Tennessee aware top four five sites world prestigious Indoor meet world may hotly contested also Twenty official events some unofficial events schedule Send #10 SASE USIC 1655 Revere Dr Brookfield WI 53005 get details entry blank isnt fun anymore quit Bill Baker original editor Okie Free Flight Flyer began issue #34 mailed January 7 1989 comment Bills efforts have helped Indoor FF Old-Timer folks keep up world several years promised issue #35 thats end Microfilm storage box time mi crofilm pouringat least always works better winter have microfilm hoops different sizes storage space premium Figure 1 shows solution highdensity storage hardest part job find ing box right size figure sketches box 31 long inside dimension about right length FAI wings maie seven hoops about ter box about 1 narrower boxs depth sketch gives basic mounting techniquea V 14 x 34 x 1-in strips glued box ends supports bottom edge hoop top same strips placed paral lel hoop about % clearance clearance stored hoops can rattle around too much less clearance makes haz ardous insert remove hoops Covering plastic films superlight films now being used Pennyplanes Easy B Intermediate Stick can difficult work because tendency toward static cling floating free slightest breeze film has two major advantages weight halfway between condenser paper microfilm stronger dimensionally stable con denser paper Covering techniques used microfilm con denser paper will work chose CP technique cut piece film about 2 larger sur face both directions taped edges work surface Although unsightly greatly thinned white carpenters glue works well adhesive wing upside down film began cen ter trailing edge worked toward both tips gluing trailing edge film Since left leading edge up air trimmed glued part TE loose allowing wing begin dropping onto film As wing outline contacted file stuck down Eventually TE propped up LE would touch film gluing After trimming rest outline stuck ribs film point covering snug mostly smoothuntil dihedral installed photos shows resulting slack film cut loose just outside dihedral rib other photo shows slip paper slot paper allowed work loose edge up over rib smooth out wrinkles before gluing down result similar three-piece cover ing except requires no special fixtures P-24 model have seen P-24 Con dor models fly flew very well mod els used Denver Area Indoor Model Airplane Association special classes aero nautical engineering freshmen University Colorado After seeing action can see success rate highthe model stable flew slowly enough easily control lable Anyone interested holding model build ing classes should evaluate model avail able Mace Model Aircraft Company 359 South 119th East Ave Tulsa OK 74128 phone 918-437-5490 Contests flying sessions Thanks newsletters information presented below CDs can give about 11 weeks advance notice will list activities first possi ble issue California Santa Ana Santa Ana hangar being refurbished availabil ity will limited uncertain first weekend month will sanctioned just case con tact Curt Stevens 25108 Marguerite Parkway Mission Viejo CA 92692 phone 714 240-8433 about particular session California San Diego Monthly sessions Cat I Howard Haupt 3860 Ecochee Ave San Diego CA 92117 Colorado Denver Contact Les Shaw phone 303 499-0946 session sched ules Connecti- Glastonbury George Armstead 89 P8OP like take easySets Up 60 8800nd6 ZUP u-u Sneuters fully eel oontelned otion NO loOg sturdy steel tube rip over NO oentePO NO ropee t fall ,8lUSlle miniature airoraft * sturdY fade resiSt8tt Red Blue nylOfl toP plus UPCHECK OR MO iWflttACIV eIde1 acid u% SSSSt John peck Leigur 2~o%3d Ltd MAA 32S7 AMA e55~-eeillea KY 4O3S WA NNA RACE Q-500F-iFAI BEGINNER RACES Instructions Club Programs NORTHEAST AREA Information Contact North East Pylon Racing Organization 119 Dean Aye Franklin Mass 02038 50815284043 14011739-2653 176 Model Aviation K K 49span 45length 4 channel trical wing Engine35-SO2cy 45-6S4cy Red silver trim k cockpit Performance Hobbies Helicopter Specialist Stainless Steel Bearing Kit Shuttles$5995 Performance Turnbuckle Kits a Hastle Free Adjustment b No Ball Link Plyers Needed C Cones Complete Adjustment Wrench Most kits Start at1295 Best Price Around Complete Test Flown Shuttle Packages Slop Hovering Aroundl Call & Order Today 206 939-4000 z PERFORMANCE HOBBIES Auburn Way N 0 Auburn WA 98002 *orHER OLO AVAILABLE h F U iwaicnea errormance ysiem TOP PERFORMANCE I&B ENGINES Ak9laneMwine K&B FUELSK&B GLOW PLUGS S Blends4 ChoIces Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN KSB SUPER POXY THINNER K&B SUPER POXY PRIMER KaB SUPER POXY PAINT K&B MIXING CUPS Cut Harvest Lane Glastonbury CT 06037 Connecti- Wilton Some sessions have cut scheduled Wilton High School Roger Kleinert 17 Gardiner St Darien CT 06820 phone 203 6551585 Contact Roger additional information Florida Miami Contact Dr John Martin 2180 Tigertail Ave Miami FL 33133 phone 305 858-6363 current schedules GeorgiaAtlanta area Class Indoor Meet Hiawasssee April 2 1989 Contact John Barker phone 404 436-9912 Class AA Indoor Meet Peach State Championships April 22-23 1989 Hiawassee Contact David Mills phone 404 365-8655 IowaCedar Rapids Approximately weekly flying sessions winter 34ft ceiling Contact Paul Mcllrath 1524 48th St Cedar Rapids IA 52402 phone 319 393-4677 Kentucky Louisville Sessions have held Kentucky Air National Guard Hangar Louisville Contact Burr Stanton 9210 Darley Dr Louis ville KY 40241 info about possible sessions Massa- Cambridge Ray Harlan 15 Happy chusetts Hollow Rd Wayland MA 01778 phone 617 358-4013 New Salem area Contest March 12 Hampshire 1989 Phillips Andover Academy Cage off Route 28 930 am-430 pm 40-ft ceiling Pennyplane/ Easy B HLG Bostonian several Scale events Don Walworth phone 603 898-5338 New Glassboro Doug Barber 146 Strat Jersey ton House Maple Shade NJ 08052 phone 609 235-5318 New York Queens Contact Bob Bender 516 248-5118 New York NYC Contact Ed Whitten PO Box 176 Wall St Station New York NY 10005 phone 212 7855327 info about possible flying New York Chappa qua Indoor sessions sched uled approximately two weeks through March 1989 Art Maiden 914 760-3280 914 769-2644 Oklahoma Oklahoma City Sessions Na tional Guard Armory Oklahoma City January 22 February 19 1989 plus March date yet set Jim Belson 4933 NW 29th Okla homa City OK 73129 phone 405 946-1093 Ohio Parma Indoor contest March 12 1989 Normandy High School Contact Mike Zand phone 216 524-3480 Pennsyl- Philadelphia Joe Krush 409 vania Warner Rd Wayne PA 19087 phone 215 688-3927or Doug Barber 146 Stratton House Maple Shade NJ 08052 phone 609 23553 18 Tennessee Chattanooga Indoor contest Chat tanooga March 5 1989 Contact Ollie Barton phone 615 886-1293 Russ Timinons phone 615 26693 10 TennesseeJohnson City U S Indoor Champi onships Minidome cam pus Univ East Tennessee June 1-4 1989 Send #10 SASE USIC 1655 Revere Dr Brookfield WI 53005 obtain flying schedule entry form Texas Ft Worth/Dallas Jesse Shepherd 2713 Summit View Bedford TX 76021 phone 817 282-3770 Utah Salt Lake City Sessions Brighton High School January 4 18 Febru ary 1 15 March 1 15 29 April 12 1989 Rocky Russo 1425 Ken sington Ave Salt Lake City UT 84105 Washing- Seattle Kevin Collins 2320 Saha ton lee Dr E Redmond WA 98023 phone 206 868-8273 responding advertisers mention read about Model Aviation PROPELLERS NEW CYCLE THP DESIGN TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALLTHELATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW DIA PITCH THP PRICE 1266/,71I,8 13877AB 14677/z8 1567 16678 NEW PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION lOTO 20% INCREASE IN THRUST MPG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCH PRICE 534 634 72833/,456 8334S88 845667 9456BM77/z 104566/,7 106W8W 10BEW 114677778 11SW 116EW 111/67 124W 125W 1260 1356 1456 1556 164N* 16676 May1989 177 THE LEADER IN COMPETITION Columbia University p ii
Edition: Model Aviation - 1989/05
Page Numbers: 72, 174, 176, 177
Free Flight Indoor Bud Tenny Box 545 RIchardson TX 75080 HOW MANY Indoor fliers depends ask September 1988 issue AMAs National Newsletter showed membership statistics 120960 members certain time during 1988 2002 Free Flight ers 261 Indoor fliers Now lets see just good contests About one-fourth Indoor fliers AMA 61 entered Indoor Virginia Nats over one-third 135 flew Johnson City last year Typically Texas sort Indoor de sert first 1989 Dallas/Ft Worth Indoor contest 7% AMA members entered Finally Indoor News Views over 20-year span typically has reached about onefourth U S Indoor fliers currently has just over 300 US subscribers guess suddenly got lot wider coverage AMA comments ended note statistics presented food thought Maybe should end comments same way What Indoor flier anyway dont know what official AMA definition seems everyone flies Indoor events sanctioned contests Indoor flier Just because someone also flies FF CL RC does keep him being Indoor flier way could own count Indoor fliers someone AMAsanctioned Indoor contest send pho tocopy entrant list could compile list AMA number count up Now time NFFS member F-A Top View -A Section or Tennys scheme storing hoops microfilm later use column got see some really neat drawings worlds largest Indoor-type modelthe humanpowered Daedalus airplane October 88 issue NFFS Digest arent member can keep missing outor can join NFFS Continued page 174 72 Model Aviation LLid Box11 0-00-0IhO0]000-00-0 *j \p details technique covering surfaces new thin plastic films film sags badly L after dihedral added wing covered its flat Bud cures sag R carefully slitting film using strip paper tool lift excess film over rib will soon giued thinned white carpenters glue wishes dried glue less unsightlybut works well 118-INCH3648 318-INCH3648 1181/808113/Sn 3182737 1/831161115318 n 1123041 11811413173/8 0 3/44460 1/80 3/81621 1/801/21724_____________________ 1/803/42533 3/18-INCH3048 3/18 3/181317 3/18 01/41419 3/18 3181621 3/16 ol/21825 3/16 0 3/42838 BALSA WOOD STICKS 1/16-INCH3640 1/1801/1808 1/1603/3207 1/181/80811 1/1631160913 1/16x1/41015 1/1603181317 1/181/21620 1/1803142128 3/32-INCH3648 1/4-INCH3848 3/32 3/320811 1/4 ii 1/41821 3/32 01/808131/403181825 3/3203/1610151/40 1/22129 3/32 0 1/413161/4 0 3143142 3/3203181419 3/320 1/21821 3/32 0 3142431 Double Balsa Wood Prices Spruce Basswood Sticks 5/18-INCH3848 5/18 ii 5/162027 5/1603/82230 5/18 o 1/22738 5/1603143952 1/2-INCH3640 1/201/23749 1/2 0 3149270 TRIANGULAR CUT BALSA 1/401/403624 3/8o3/8s3629 1/201/203637 3/4031403647 10103681 BALSA PLANKS 3/4s3036178 102036164 o3o36230 1 odo38303 202036230 203038329 204038484 3s3o38490 304038680 TAIBI BALSA SHEETS 1-INCH3648 1/18012736 3/32 0 13840 1/8013344 3/180 13749 1/4014157 3/8 0 15372 1/2018588 2-INCH3648 1/32023040 1/16023848 3/32 s 24154 1/8024880 3/18 s 25472 1/4028384 3/8s277103 1/302113150 3-INCH3848 1/32034053 1/16034358 3/32 0 35270 1/8036080 3/16037295 1/40384112 5/1603103134 3/803120160 1/203150200 4-INCH3648 1/32 0 46587 1/160473101 3/320482109 1/80495128 3/1604114151 1/404131193 3/804182271 1/2 04219320 BIRCH PLYWOOD 1/640120121751/40601274 1/64o12o243501/4o12o12146 1/640120407201/4012024293 1/6404004028001/4012048580 1/320606493/8012012180 1/32012012973/8o12o24360 1/32s 120241943/8o 12048720 1/320 12040388 _________________1/2 0 120 12202 1/16o6s124912o12o24405 1/16n12n1297l/2o12o48809 1/160 12024164 1/160 12040388 3/320601275 3/32120 12150 3/32 012024300 3/32 012 0 40608 1/80601282 1/8o12o12164 1/80 12024328 1/8012040656 3/16o6s1274 3/16o12012146 3/16 012024293 3/16 012048580 LITE PLYWOOD 1/801201258 1/80 12024112 1/8012040224 TAPERED TRAILING EDGE3648 1/80 1/22230 3/1603142940 1/40 14255 5/160 ir/s4461 3/8015272 Superior Aircraft Materials 12020-G Centralia iian Gardens California 90716 865-3220 Handling Charge-$500 $300 COD mum Order $2000 accept Personal Checks COD fornia Residents add 6% Sales Tax Consistently locked-up ie no auto surfac es model could Bob White has done years mount fuse stab trailing edge No lines no bending booms want use remote DT either fuse timer auto anything will have run some lines through boom solution route lines down center boom way line tension wont tend bend boom up down sideways last two models added t balsa bulkhead about three inches back inside big end boom small block scrap balsa added center 3/3 hole drilled through center ran piece Teflon tubing down through hole top boom just behind tube/boom joint tub ing makes gentle S-curve down through hole bulkhead DT line braided Da cron fishing line runs through tubing straight down center boom Plastic balsa No Im talking about old Aerogloss stuff red tube still make Ratlser Im talking about Rohacell Its rig id foam plastic material can used instead balsa modeling applications Former FlA World Champ Matt Gewain wife Gail run Composite Structures Technology sell Rohacell small quantities well some other high-tech modeling supplies Recently sent few samples play first glance material looks much like familiar pink blue extruded polystyrene foams used insulating houses Rohacell bright white feels much stiffer less spongy polystyrene foams fact compression modulus Rohacell about six times polystyrene close balsa Rohacell comes two densities thinner sheets 10 15 2mni 31 lb per cubic foot thicker stuff 3mm up 2 19 pcf European modelers have using Rohacell over 10 years now Two main construction techniques have developed system uses top bottom wing skins formed thin Rohacell spar inside skins formed jigs shaped match either upper lower airfoil curvature laminated epoxy-impregnated lightweight glass cloth both sides Rohacell skin way theres no need ribs other method involves carving sanding solid wing out thicker Rohacell adding spar covering both top bottom sur faces glass cloth Kevlar Theres very complete description latter method Heiko Rapp-Wurm National Free Flight Societys 1988 Symposium Rohacell can also used conven tional construction example thin Rohacell ribs capped thin carbon fiber will lighter stiffer conventional balsa ribs since theres no grain ribs can cut out sheet minlmum waste Unlike other plastic foams Rohacell affected cyanoacrylate adhesives dope polyester resin melt polystyrene foams Like plastic foam though need use adhesive hardens evapora tion such cyano epoxy thin cyano glue tried seemed take forever set thick stuff little better sure miss being able assemble things add glue didnt try accelerator might speed things up Unlike polystyrene foams Rohacell cant cut using hot wire Supposedly some deadly gas released material easy enough shape sandpaper biggest drawback Rohacell cost stuff expensive example 1 x 2-ft sheet 1mm $850 1 x 2 sheet l-in-thick foam $2850 plus shipping informa tion price list write Composite Structures Technology 3701 Inglewood Ave #268 Re dondo Beach CA 90278-1110 way also carry hard-to-find one-ounce-per-squareyard Kevlar cloth just thought Id pass along obseervation last team selection finals Matt nlfty portable weather station set up momtol wind speed direction Im sure about thc brand two sources similar equip ment Magnaphase Industries Inc 1502 Pike St NW Auburn WA 98001 Wind Weather Albion Street Water Tower PO Box 2320 Mendocino CA 95460 ELECTRIC SEMI-SCALE Radio Control Sport/Trainer Wing Spas 87 3/4 Length 37 1/2 PAUL K GUILLOW INC WAKEFIELD MA 01880 FF Indoor/Tenny Continued page 72 Send $15 $750 age 18 under NFFS 6146 East Cactus Wren Rd Scottsdale AZ 85253 FF Indoor fliers really owe selves support NFFSthe organization sponsors both FF Indoor contests Also dont forget Digest Sympo annual Free Flight Symposium Report two publi cationS make lot good material available us Spealting Free Flight Digest Editor Bob Meuser needs articlesboth FF Indoor Send input Bob 4200 Gregory St Oakland CA 94619 big show coming again 1989 United 174 Model Aviation TWO NEW FLIGHT BOXES Cowoletelo assewbled finished Made USA Both top qaalitp wood construclion Two torso drawers Unique drawer locks Swoll hoc 0 pluo shipping Large Son $12500 plus shippino includes fuel cowpartwentbatlery/power panel cowpartwentad/usfahle fuseluon cradles Mocep hank guarantee Seed $1 opens call 415 3637732 Inane oressuoc Fltghts Fancy erowodefiop P0 Son La Honda Ca 94020 Agressor R F high quality balsa Plywood firn fly airplane Covered Monokote can easily repaired should need like foam ARFs Agressor very competitive Fun Fly events also available built order $14995 plus $SP & H Just add engine tank$11995 radio go Flyplus $12WP&H CRENSHAW AERO 423W Washington Shelbyville IN 46176 1-800-999-4133-00096 M-F till 400 pm ICSTI 317-392-1726 After 500 pm Weekends States Indoor Championship set June 1-4 1989 Johnson City TN have flown Minidome fleidhouse Univer sity East Tennessee aware top four five sites world prestigious Indoor meet world may hotly contested also Twenty official events some unofficial events schedule Send #10 SASE USIC 1655 Revere Dr Brookfield WI 53005 get details entry blank isnt fun anymore quit Bill Baker original editor Okie Free Flight Flyer began issue #34 mailed January 7 1989 comment Bills efforts have helped Indoor FF Old-Timer folks keep up world several years promised issue #35 thats end Microfilm storage box time mi crofilm pouringat least always works better winter have microfilm hoops different sizes storage space premium Figure 1 shows solution highdensity storage hardest part job find ing box right size figure sketches box 31 long inside dimension about right length FAI wings maie seven hoops about ter box about 1 narrower boxs depth sketch gives basic mounting techniquea V 14 x 34 x 1-in strips glued box ends supports bottom edge hoop top same strips placed paral lel hoop about % clearance clearance stored hoops can rattle around too much less clearance makes haz ardous insert remove hoops Covering plastic films superlight films now being used Pennyplanes Easy B Intermediate Stick can difficult work because tendency toward static cling floating free slightest breeze film has two major advantages weight halfway between condenser paper microfilm stronger dimensionally stable con denser paper Covering techniques used microfilm con denser paper will work chose CP technique cut piece film about 2 larger sur face both directions taped edges work surface Although unsightly greatly thinned white carpenters glue works well adhesive wing upside down film began cen ter trailing edge worked toward both tips gluing trailing edge film Since left leading edge up air trimmed glued part TE loose allowing wing begin dropping onto film As wing outline contacted file stuck down Eventually TE propped up LE would touch film gluing After trimming rest outline stuck ribs film point covering snug mostly smoothuntil dihedral installed photos shows resulting slack film cut loose just outside dihedral rib other photo shows slip paper slot paper allowed work loose edge up over rib smooth out wrinkles before gluing down result similar three-piece cover ing except requires no special fixtures P-24 model have seen P-24 Con dor models fly flew very well mod els used Denver Area Indoor Model Airplane Association special classes aero nautical engineering freshmen University Colorado After seeing action can see success rate highthe model stable flew slowly enough easily control lable Anyone interested holding model build ing classes should evaluate model avail able Mace Model Aircraft Company 359 South 119th East Ave Tulsa OK 74128 phone 918-437-5490 Contests flying sessions Thanks newsletters information presented below CDs can give about 11 weeks advance notice will list activities first possi ble issue California Santa Ana Santa Ana hangar being refurbished availabil ity will limited uncertain first weekend month will sanctioned just case con tact Curt Stevens 25108 Marguerite Parkway Mission Viejo CA 92692 phone 714 240-8433 about particular session California San Diego Monthly sessions Cat I Howard Haupt 3860 Ecochee Ave San Diego CA 92117 Colorado Denver Contact Les Shaw phone 303 499-0946 session sched ules Connecti- Glastonbury George Armstead 89 P8OP like take easySets Up 60 8800nd6 ZUP u-u Sneuters fully eel oontelned otion NO loOg sturdy steel tube rip over NO oentePO NO ropee t fall ,8lUSlle miniature airoraft * sturdY fade resiSt8tt Red Blue nylOfl toP plus UPCHECK OR MO iWflttACIV eIde1 acid u% SSSSt John peck Leigur 2~o%3d Ltd MAA 32S7 AMA e55~-eeillea KY 4O3S WA NNA RACE Q-500F-iFAI BEGINNER RACES Instructions Club Programs NORTHEAST AREA Information Contact North East Pylon Racing Organization 119 Dean Aye Franklin Mass 02038 50815284043 14011739-2653 176 Model Aviation K K 49span 45length 4 channel trical wing Engine35-SO2cy 45-6S4cy Red silver trim k cockpit Performance Hobbies Helicopter Specialist Stainless Steel Bearing Kit Shuttles$5995 Performance Turnbuckle Kits a Hastle Free Adjustment b No Ball Link Plyers Needed C Cones Complete Adjustment Wrench Most kits Start at1295 Best Price Around Complete Test Flown Shuttle Packages Slop Hovering Aroundl Call & Order Today 206 939-4000 z PERFORMANCE HOBBIES Auburn Way N 0 Auburn WA 98002 *orHER OLO AVAILABLE h F U iwaicnea errormance ysiem TOP PERFORMANCE I&B ENGINES Ak9laneMwine K&B FUELSK&B GLOW PLUGS S Blends4 ChoIces Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN KSB SUPER POXY THINNER K&B SUPER POXY PRIMER KaB SUPER POXY PAINT K&B MIXING CUPS Cut Harvest Lane Glastonbury CT 06037 Connecti- Wilton Some sessions have cut scheduled Wilton High School Roger Kleinert 17 Gardiner St Darien CT 06820 phone 203 6551585 Contact Roger additional information Florida Miami Contact Dr John Martin 2180 Tigertail Ave Miami FL 33133 phone 305 858-6363 current schedules GeorgiaAtlanta area Class Indoor Meet Hiawasssee April 2 1989 Contact John Barker phone 404 436-9912 Class AA Indoor Meet Peach State Championships April 22-23 1989 Hiawassee Contact David Mills phone 404 365-8655 IowaCedar Rapids Approximately weekly flying sessions winter 34ft ceiling Contact Paul Mcllrath 1524 48th St Cedar Rapids IA 52402 phone 319 393-4677 Kentucky Louisville Sessions have held Kentucky Air National Guard Hangar Louisville Contact Burr Stanton 9210 Darley Dr Louis ville KY 40241 info about possible sessions Massa- Cambridge Ray Harlan 15 Happy chusetts Hollow Rd Wayland MA 01778 phone 617 358-4013 New Salem area Contest March 12 Hampshire 1989 Phillips Andover Academy Cage off Route 28 930 am-430 pm 40-ft ceiling Pennyplane/ Easy B HLG Bostonian several Scale events Don Walworth phone 603 898-5338 New Glassboro Doug Barber 146 Strat Jersey ton House Maple Shade NJ 08052 phone 609 235-5318 New York Queens Contact Bob Bender 516 248-5118 New York NYC Contact Ed Whitten PO Box 176 Wall St Station New York NY 10005 phone 212 7855327 info about possible flying New York Chappa qua Indoor sessions sched uled approximately two weeks through March 1989 Art Maiden 914 760-3280 914 769-2644 Oklahoma Oklahoma City Sessions Na tional Guard Armory Oklahoma City January 22 February 19 1989 plus March date yet set Jim Belson 4933 NW 29th Okla homa City OK 73129 phone 405 946-1093 Ohio Parma Indoor contest March 12 1989 Normandy High School Contact Mike Zand phone 216 524-3480 Pennsyl- Philadelphia Joe Krush 409 vania Warner Rd Wayne PA 19087 phone 215 688-3927or Doug Barber 146 Stratton House Maple Shade NJ 08052 phone 609 23553 18 Tennessee Chattanooga Indoor contest Chat tanooga March 5 1989 Contact Ollie Barton phone 615 886-1293 Russ Timinons phone 615 26693 10 TennesseeJohnson City U S Indoor Champi onships Minidome cam pus Univ East Tennessee June 1-4 1989 Send #10 SASE USIC 1655 Revere Dr Brookfield WI 53005 obtain flying schedule entry form Texas Ft Worth/Dallas Jesse Shepherd 2713 Summit View Bedford TX 76021 phone 817 282-3770 Utah Salt Lake City Sessions Brighton High School January 4 18 Febru ary 1 15 March 1 15 29 April 12 1989 Rocky Russo 1425 Ken sington Ave Salt Lake City UT 84105 Washing- Seattle Kevin Collins 2320 Saha ton lee Dr E Redmond WA 98023 phone 206 868-8273 responding advertisers mention read about Model Aviation PROPELLERS NEW CYCLE THP DESIGN TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALLTHELATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW DIA PITCH THP PRICE 1266/,71I,8 13877AB 14677/z8 1567 16678 NEW PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION lOTO 20% INCREASE IN THRUST MPG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCH PRICE 534 634 72833/,456 8334S88 845667 9456BM77/z 104566/,7 106W8W 10BEW 114677778 11SW 116EW 111/67 124W 125W 1260 1356 1456 1556 164N* 16676 May1989 177 THE LEADER IN COMPETITION Columbia University p ii
Edition: Model Aviation - 1989/05
Page Numbers: 72, 174, 176, 177
Free Flight Indoor Bud Tenny Box 545 RIchardson TX 75080 HOW MANY Indoor fliers depends ask September 1988 issue AMAs National Newsletter showed membership statistics 120960 members certain time during 1988 2002 Free Flight ers 261 Indoor fliers Now lets see just good contests About one-fourth Indoor fliers AMA 61 entered Indoor Virginia Nats over one-third 135 flew Johnson City last year Typically Texas sort Indoor de sert first 1989 Dallas/Ft Worth Indoor contest 7% AMA members entered Finally Indoor News Views over 20-year span typically has reached about onefourth U S Indoor fliers currently has just over 300 US subscribers guess suddenly got lot wider coverage AMA comments ended note statistics presented food thought Maybe should end comments same way What Indoor flier anyway dont know what official AMA definition seems everyone flies Indoor events sanctioned contests Indoor flier Just because someone also flies FF CL RC does keep him being Indoor flier way could own count Indoor fliers someone AMAsanctioned Indoor contest send pho tocopy entrant list could compile list AMA number count up Now time NFFS member F-A Top View -A Section or Tennys scheme storing hoops microfilm later use column got see some really neat drawings worlds largest Indoor-type modelthe humanpowered Daedalus airplane October 88 issue NFFS Digest arent member can keep missing outor can join NFFS Continued page 174 72 Model Aviation LLid Box11 0-00-0IhO0]000-00-0 *j \p details technique covering surfaces new thin plastic films film sags badly L after dihedral added wing covered its flat Bud cures sag R carefully slitting film using strip paper tool lift excess film over rib will soon giued thinned white carpenters glue wishes dried glue less unsightlybut works well 118-INCH3648 318-INCH3648 1181/808113/Sn 3182737 1/831161115318 n 1123041 11811413173/8 0 3/44460 1/80 3/81621 1/801/21724_____________________ 1/803/42533 3/18-INCH3048 3/18 3/181317 3/18 01/41419 3/18 3181621 3/16 ol/21825 3/16 0 3/42838 BALSA WOOD STICKS 1/16-INCH3640 1/1801/1808 1/1603/3207 1/181/80811 1/1631160913 1/16x1/41015 1/1603181317 1/181/21620 1/1803142128 3/32-INCH3648 1/4-INCH3848 3/32 3/320811 1/4 ii 1/41821 3/32 01/808131/403181825 3/3203/1610151/40 1/22129 3/32 0 1/413161/4 0 3143142 3/3203181419 3/320 1/21821 3/32 0 3142431 Double Balsa Wood Prices Spruce Basswood Sticks 5/18-INCH3848 5/18 ii 5/162027 5/1603/82230 5/18 o 1/22738 5/1603143952 1/2-INCH3640 1/201/23749 1/2 0 3149270 TRIANGULAR CUT BALSA 1/401/403624 3/8o3/8s3629 1/201/203637 3/4031403647 10103681 BALSA PLANKS 3/4s3036178 102036164 o3o36230 1 odo38303 202036230 203038329 204038484 3s3o38490 304038680 TAIBI BALSA SHEETS 1-INCH3648 1/18012736 3/32 0 13840 1/8013344 3/180 13749 1/4014157 3/8 0 15372 1/2018588 2-INCH3648 1/32023040 1/16023848 3/32 s 24154 1/8024880 3/18 s 25472 1/4028384 3/8s277103 1/302113150 3-INCH3848 1/32034053 1/16034358 3/32 0 35270 1/8036080 3/16037295 1/40384112 5/1603103134 3/803120160 1/203150200 4-INCH3648 1/32 0 46587 1/160473101 3/320482109 1/80495128 3/1604114151 1/404131193 3/804182271 1/2 04219320 BIRCH PLYWOOD 1/640120121751/40601274 1/64o12o243501/4o12o12146 1/640120407201/4012024293 1/6404004028001/4012048580 1/320606493/8012012180 1/32012012973/8o12o24360 1/32s 120241943/8o 12048720 1/320 12040388 _________________1/2 0 120 12202 1/16o6s124912o12o24405 1/16n12n1297l/2o12o48809 1/160 12024164 1/160 12040388 3/320601275 3/32120 12150 3/32 012024300 3/32 012 0 40608 1/80601282 1/8o12o12164 1/80 12024328 1/8012040656 3/16o6s1274 3/16o12012146 3/16 012024293 3/16 012048580 LITE PLYWOOD 1/801201258 1/80 12024112 1/8012040224 TAPERED TRAILING EDGE3648 1/80 1/22230 3/1603142940 1/40 14255 5/160 ir/s4461 3/8015272 Superior Aircraft Materials 12020-G Centralia iian Gardens California 90716 865-3220 Handling Charge-$500 $300 COD mum Order $2000 accept Personal Checks COD fornia Residents add 6% Sales Tax Consistently locked-up ie no auto surfac es model could Bob White has done years mount fuse stab trailing edge No lines no bending booms want use remote DT either fuse timer auto anything will have run some lines through boom solution route lines down center boom way line tension wont tend bend boom up down sideways last two models added t balsa bulkhead about three inches back inside big end boom small block scrap balsa added center 3/3 hole drilled through center ran piece Teflon tubing down through hole top boom just behind tube/boom joint tub ing makes gentle S-curve down through hole bulkhead DT line braided Da cron fishing line runs through tubing straight down center boom Plastic balsa No Im talking about old Aerogloss stuff red tube still make Ratlser Im talking about Rohacell Its rig id foam plastic material can used instead balsa modeling applications Former FlA World Champ Matt Gewain wife Gail run Composite Structures Technology sell Rohacell small quantities well some other high-tech modeling supplies Recently sent few samples play first glance material looks much like familiar pink blue extruded polystyrene foams used insulating houses Rohacell bright white feels much stiffer less spongy polystyrene foams fact compression modulus Rohacell about six times polystyrene close balsa Rohacell comes two densities thinner sheets 10 15 2mni 31 lb per cubic foot thicker stuff 3mm up 2 19 pcf European modelers have using Rohacell over 10 years now Two main construction techniques have developed system uses top bottom wing skins formed thin Rohacell spar inside skins formed jigs shaped match either upper lower airfoil curvature laminated epoxy-impregnated lightweight glass cloth both sides Rohacell skin way theres no need ribs other method involves carving sanding solid wing out thicker Rohacell adding spar covering both top bottom sur faces glass cloth Kevlar Theres very complete description latter method Heiko Rapp-Wurm National Free Flight Societys 1988 Symposium Rohacell can also used conven tional construction example thin Rohacell ribs capped thin carbon fiber will lighter stiffer conventional balsa ribs since theres no grain ribs can cut out sheet minlmum waste Unlike other plastic foams Rohacell affected cyanoacrylate adhesives dope polyester resin melt polystyrene foams Like plastic foam though need use adhesive hardens evapora tion such cyano epoxy thin cyano glue tried seemed take forever set thick stuff little better sure miss being able assemble things add glue didnt try accelerator might speed things up Unlike polystyrene foams Rohacell cant cut using hot wire Supposedly some deadly gas released material easy enough shape sandpaper biggest drawback Rohacell cost stuff expensive example 1 x 2-ft sheet 1mm $850 1 x 2 sheet l-in-thick foam $2850 plus shipping informa tion price list write Composite Structures Technology 3701 Inglewood Ave #268 Re dondo Beach CA 90278-1110 way also carry hard-to-find one-ounce-per-squareyard Kevlar cloth just thought Id pass along obseervation last team selection finals Matt nlfty portable weather station set up momtol wind speed direction Im sure about thc brand two sources similar equip ment Magnaphase Industries Inc 1502 Pike St NW Auburn WA 98001 Wind Weather Albion Street Water Tower PO Box 2320 Mendocino CA 95460 ELECTRIC SEMI-SCALE Radio Control Sport/Trainer Wing Spas 87 3/4 Length 37 1/2 PAUL K GUILLOW INC WAKEFIELD MA 01880 FF Indoor/Tenny Continued page 72 Send $15 $750 age 18 under NFFS 6146 East Cactus Wren Rd Scottsdale AZ 85253 FF Indoor fliers really owe selves support NFFSthe organization sponsors both FF Indoor contests Also dont forget Digest Sympo annual Free Flight Symposium Report two publi cationS make lot good material available us Spealting Free Flight Digest Editor Bob Meuser needs articlesboth FF Indoor Send input Bob 4200 Gregory St Oakland CA 94619 big show coming again 1989 United 174 Model Aviation TWO NEW FLIGHT BOXES Cowoletelo assewbled finished Made USA Both top qaalitp wood construclion Two torso drawers Unique drawer locks Swoll hoc 0 pluo shipping Large Son $12500 plus shippino includes fuel cowpartwentbatlery/power panel cowpartwentad/usfahle fuseluon cradles Mocep hank guarantee Seed $1 opens call 415 3637732 Inane oressuoc Fltghts Fancy erowodefiop P0 Son La Honda Ca 94020 Agressor R F high quality balsa Plywood firn fly airplane Covered Monokote can easily repaired should need like foam ARFs Agressor very competitive Fun Fly events also available built order $14995 plus $SP & H Just add engine tank$11995 radio go Flyplus $12WP&H CRENSHAW AERO 423W Washington Shelbyville IN 46176 1-800-999-4133-00096 M-F till 400 pm ICSTI 317-392-1726 After 500 pm Weekends States Indoor Championship set June 1-4 1989 Johnson City TN have flown Minidome fleidhouse Univer sity East Tennessee aware top four five sites world prestigious Indoor meet world may hotly contested also Twenty official events some unofficial events schedule Send #10 SASE USIC 1655 Revere Dr Brookfield WI 53005 get details entry blank isnt fun anymore quit Bill Baker original editor Okie Free Flight Flyer began issue #34 mailed January 7 1989 comment Bills efforts have helped Indoor FF Old-Timer folks keep up world several years promised issue #35 thats end Microfilm storage box time mi crofilm pouringat least always works better winter have microfilm hoops different sizes storage space premium Figure 1 shows solution highdensity storage hardest part job find ing box right size figure sketches box 31 long inside dimension about right length FAI wings maie seven hoops about ter box about 1 narrower boxs depth sketch gives basic mounting techniquea V 14 x 34 x 1-in strips glued box ends supports bottom edge hoop top same strips placed paral lel hoop about % clearance clearance stored hoops can rattle around too much less clearance makes haz ardous insert remove hoops Covering plastic films superlight films now being used Pennyplanes Easy B Intermediate Stick can difficult work because tendency toward static cling floating free slightest breeze film has two major advantages weight halfway between condenser paper microfilm stronger dimensionally stable con denser paper Covering techniques used microfilm con denser paper will work chose CP technique cut piece film about 2 larger sur face both directions taped edges work surface Although unsightly greatly thinned white carpenters glue works well adhesive wing upside down film began cen ter trailing edge worked toward both tips gluing trailing edge film Since left leading edge up air trimmed glued part TE loose allowing wing begin dropping onto film As wing outline contacted file stuck down Eventually TE propped up LE would touch film gluing After trimming rest outline stuck ribs film point covering snug mostly smoothuntil dihedral installed photos shows resulting slack film cut loose just outside dihedral rib other photo shows slip paper slot paper allowed work loose edge up over rib smooth out wrinkles before gluing down result similar three-piece cover ing except requires no special fixtures P-24 model have seen P-24 Con dor models fly flew very well mod els used Denver Area Indoor Model Airplane Association special classes aero nautical engineering freshmen University Colorado After seeing action can see success rate highthe model stable flew slowly enough easily control lable Anyone interested holding model build ing classes should evaluate model avail able Mace Model Aircraft Company 359 South 119th East Ave Tulsa OK 74128 phone 918-437-5490 Contests flying sessions Thanks newsletters information presented below CDs can give about 11 weeks advance notice will list activities first possi ble issue California Santa Ana Santa Ana hangar being refurbished availabil ity will limited uncertain first weekend month will sanctioned just case con tact Curt Stevens 25108 Marguerite Parkway Mission Viejo CA 92692 phone 714 240-8433 about particular session California San Diego Monthly sessions Cat I Howard Haupt 3860 Ecochee Ave San Diego CA 92117 Colorado Denver Contact Les Shaw phone 303 499-0946 session sched ules Connecti- Glastonbury George Armstead 89 P8OP like take easySets Up 60 8800nd6 ZUP u-u Sneuters fully eel oontelned otion NO loOg sturdy steel tube rip over NO oentePO NO ropee t fall ,8lUSlle miniature airoraft * sturdY fade resiSt8tt Red Blue nylOfl toP plus UPCHECK OR MO iWflttACIV eIde1 acid u% SSSSt John peck Leigur 2~o%3d Ltd MAA 32S7 AMA e55~-eeillea KY 4O3S WA NNA RACE Q-500F-iFAI BEGINNER RACES Instructions Club Programs NORTHEAST AREA Information Contact North East Pylon Racing Organization 119 Dean Aye Franklin Mass 02038 50815284043 14011739-2653 176 Model Aviation K K 49span 45length 4 channel trical wing Engine35-SO2cy 45-6S4cy Red silver trim k cockpit Performance Hobbies Helicopter Specialist Stainless Steel Bearing Kit Shuttles$5995 Performance Turnbuckle Kits a Hastle Free Adjustment b No Ball Link Plyers Needed C Cones Complete Adjustment Wrench Most kits Start at1295 Best Price Around Complete Test Flown Shuttle Packages Slop Hovering Aroundl Call & Order Today 206 939-4000 z PERFORMANCE HOBBIES Auburn Way N 0 Auburn WA 98002 *orHER OLO AVAILABLE h F U iwaicnea errormance ysiem TOP PERFORMANCE I&B ENGINES Ak9laneMwine K&B FUELSK&B GLOW PLUGS S Blends4 ChoIces Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN KSB SUPER POXY THINNER K&B SUPER POXY PRIMER KaB SUPER POXY PAINT K&B MIXING CUPS Cut Harvest Lane Glastonbury CT 06037 Connecti- Wilton Some sessions have cut scheduled Wilton High School Roger Kleinert 17 Gardiner St Darien CT 06820 phone 203 6551585 Contact Roger additional information Florida Miami Contact Dr John Martin 2180 Tigertail Ave Miami FL 33133 phone 305 858-6363 current schedules GeorgiaAtlanta area Class Indoor Meet Hiawasssee April 2 1989 Contact John Barker phone 404 436-9912 Class AA Indoor Meet Peach State Championships April 22-23 1989 Hiawassee Contact David Mills phone 404 365-8655 IowaCedar Rapids Approximately weekly flying sessions winter 34ft ceiling Contact Paul Mcllrath 1524 48th St Cedar Rapids IA 52402 phone 319 393-4677 Kentucky Louisville Sessions have held Kentucky Air National Guard Hangar Louisville Contact Burr Stanton 9210 Darley Dr Louis ville KY 40241 info about possible sessions Massa- Cambridge Ray Harlan 15 Happy chusetts Hollow Rd Wayland MA 01778 phone 617 358-4013 New Salem area Contest March 12 Hampshire 1989 Phillips Andover Academy Cage off Route 28 930 am-430 pm 40-ft ceiling Pennyplane/ Easy B HLG Bostonian several Scale events Don Walworth phone 603 898-5338 New Glassboro Doug Barber 146 Strat Jersey ton House Maple Shade NJ 08052 phone 609 235-5318 New York Queens Contact Bob Bender 516 248-5118 New York NYC Contact Ed Whitten PO Box 176 Wall St Station New York NY 10005 phone 212 7855327 info about possible flying New York Chappa qua Indoor sessions sched uled approximately two weeks through March 1989 Art Maiden 914 760-3280 914 769-2644 Oklahoma Oklahoma City Sessions Na tional Guard Armory Oklahoma City January 22 February 19 1989 plus March date yet set Jim Belson 4933 NW 29th Okla homa City OK 73129 phone 405 946-1093 Ohio Parma Indoor contest March 12 1989 Normandy High School Contact Mike Zand phone 216 524-3480 Pennsyl- Philadelphia Joe Krush 409 vania Warner Rd Wayne PA 19087 phone 215 688-3927or Doug Barber 146 Stratton House Maple Shade NJ 08052 phone 609 23553 18 Tennessee Chattanooga Indoor contest Chat tanooga March 5 1989 Contact Ollie Barton phone 615 886-1293 Russ Timinons phone 615 26693 10 TennesseeJohnson City U S Indoor Champi onships Minidome cam pus Univ East Tennessee June 1-4 1989 Send #10 SASE USIC 1655 Revere Dr Brookfield WI 53005 obtain flying schedule entry form Texas Ft Worth/Dallas Jesse Shepherd 2713 Summit View Bedford TX 76021 phone 817 282-3770 Utah Salt Lake City Sessions Brighton High School January 4 18 Febru ary 1 15 March 1 15 29 April 12 1989 Rocky Russo 1425 Ken sington Ave Salt Lake City UT 84105 Washing- Seattle Kevin Collins 2320 Saha ton lee Dr E Redmond WA 98023 phone 206 868-8273 responding advertisers mention read about Model Aviation PROPELLERS NEW CYCLE THP DESIGN TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALLTHELATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW DIA PITCH THP PRICE 1266/,71I,8 13877AB 14677/z8 1567 16678 NEW PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION lOTO 20% INCREASE IN THRUST MPG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCH PRICE 534 634 72833/,456 8334S88 845667 9456BM77/z 104566/,7 106W8W 10BEW 114677778 11SW 116EW 111/67 124W 125W 1260 1356 1456 1556 164N* 16676 May1989 177 THE LEADER IN COMPETITION Columbia University p ii