H Cl Duration Bob Meuser Bobs August column told us something about models entered Second Great International Paper Airplane Contest Results contest announced about time issue published Bob winner Distance event Nonprofes sional category repeating perfor mance 18 years ago again flying farther winner Profes sional category substantial margin Will success spoil Bob Meuser Will let hair cover ears insist being addressed Robert wear tailor-made suits maybe necktie drive afan cy convertible asked him replied Good gracious certainly hope so~ HOW make paper airplane fly far Easy Make fin-stabilized missile make heavy minimize drag specify thrown hard high hope isnt disqualified being conventional airplane Simple would seem incredible out 4000 entered 1985 meet 11000 entered first doped out Im sure wasnt Perhaps put idea prac tice bit better bit less unlucky others Actually goal something little different simple ballistic missile arrow arrow goal Id have omitted front fin reduced size rear ones order mini mize drag rear fins model would super-stable tail would simply follow nose along parabolic flight path addition front fins attempt reduce sta bility mid-flight nose would still high lift would gen erated rather outsized fins attempt get enough lift extend flight path considerably Whether achieved goal what degree dont know no extensive R D simply eyeballed design built chucked few times sure least little stability shipped off distance flown141 ft 4 inwas pretty good series some 20 con tests San Francisco Bay Area held during mid-Seventies flights around 120 ft achieved top Distance flights second GIPAP 58 Model Aviation Mousers winnahl design won Distance Nonprofessional event Second Great international Paper Airplane Contest Bob won 1967 too BOB MEUSERS PAPER PUSSYCAT Winner SECOND GREAT INTERNATIONAL PAPER AIRPLANE CONTEST Nonprofessional category Distance event H 1414 I3part way crease Fuselage cross section Nose filled pape soaked glue sanded blunt form Model constructed entirely two-ply bristol board joined rubber cement Hot Stuff cyanoacrylate glue Medalists Bob grandson Clint Clint took third place Distance event Juni category plane flew fsrther Bobs 1967 event-winnerl far better first con test grandson Clintons model sim ple fold-up flew 13 ft farther winning flight 1967 contest yet good third place Junior category can conclude have stronger arms Seattle New York first GIPAP held other models didnt fare too well although gratifying learn two Time-of-Flight models among 25 made finals Duration scores disappoint ingly low 16 seconds Professional 98 seconds Nonprofessional 11 seconds Junior entered paper replica conventional HL Glider having about 16-in wingspan Several similar models entered others capable over 20 seconds None got contest What wins competition What wins what works best under conditions competition what performance can achieved under some other condi tions conditions competition included launching persons necessarily skilled art throw ing conventional HL Gliders hope conditions would advantage know now simply wish ful thinking Most models entered Japanese won 10 12 First Place awards tiny little things along lines conventional HL Gliders similar White Wings models produced Japan marketed AG Industries recent ones have balsa fuselagesa great improve ment over laminated-paper ones earlier kits future kits will have pre punched parts am told winners Time-of-Flight events Distance event Professional class idiom Such model could recover Low technology high FUNby BILL HANNAN indifferent launch still post decent flight time whereas larger models could suppose could have doped out ahead time didnt thought Aesthetic Design model Intercontinental Rocket Express sort-of cross between Space Shuttle SR-7 1was sure winner sense aesthetics antithetic judges apparently after seeing winner second-place models fly still wonder Aerobatics model replica won five local contests entered didnt fare better Oh well Although some Japanese take paper airplanes pretty seriously dont dont think taking seriously appropriate continuing source embarrassment over past 18 years has people asking still fly model airplanes meaning paper air planes stock answer Model air planes yes paper airplanes no quality Ornithopter has tough time information sparse often contradic tory Realizing problem Orni thopter Modelers Society OMS has released its first publication other its newsletter Flapper Facts called Orni thopter Design Manual 42-page first edition intended stepping stone rather finished product Copies have distributed OMS mem bers instructed review make suggestions corrections remarks possibly contributions its present form booklet contains far information subject has previously appeared between two covers authorsPat Deshaye Frank Kieserhave used copious sketches il lustrate points about theory design construction flying weird beasties Interested ual member ship including subscription Flapper Facts costs $7 Contact Sherley White Route 1 Box 241 Catawissa MO 63015 OMS publishes design manual person place momentum-powered interested building competition-Continued page 78 October 1985 59 Bobs entry Aerobatics category SGIPAC didnt win place flies almost equally well upright Inverted thrown straight up executes inside outside loops verticalplane figure eights way down Meusers entry Aesthetic Design event SOIPAC wasnt aesthetic enough eyes judges does flyand weli too MODELS MUSINGS 0 latest book Bili Hannan Column let Bob Meuser reviews month FF Duration/Meuser Continued page 59 Helicopter hand-launched glider life conventional boomerangs fly about 12 seconds have tried get fly longer am told have made flights exceeding minute has flown about three minutes although might have volved assistance thermal Such long flights seems imply flight mechanism helicop ter rather autogiro least later flight initial rotational momentum wanes Maple seeds know about Amusing yawn say what has got winning Free Flight contests Perhaps nothing nothing Hand-Launched Glider rules would prevent boomer ang competing one-to-threeminute flights made under Indoor flying conditions boomerangs could threat life-style Indoor HL Glider enthusiasts made thermal assistance bit development Free Flighters boomerang might competitive conventional HLG aircraft unlikely seems have nothing against boomerangs fly bit myself hope have time take whack developing ones maximum time flight However dont think have place Free Flight competition know cher ish next rules-change cycle Ill propose boomerangs prohibited HLG competition Comments Flapping good circulation Ac cording clip saw newsletter fellow name Professor Maxworthy yes Free Flighters thats real name University Southern Cali fornia has studying heck out insects hover effectively Using large mechanical models flying sea glycerine presumably get Reynolds number right finds using clap fling technique wasps such can develop five six times lift conventional aircraft wings Im quite sure what means could have told professor right off conventional fixed wings wont lift much hovering flight clap-andfling business amounts wing tips coming contact nearly top bottom stroke Its good circulationof air isor something like circulation spells lift Well seems work model planes tooOrnithopter models conventional monoplane type rather biplanes havent heard Al Rohrbaugh has getting over 10 minutes ornibipe just double what would have considered virtually impossible two three years ago quantum leap can recall Free Flight since invention glow plug ornibipes wings flap out phase tips come together second stroke could part explanation Als success another part might lie fact flapping isnt completely out phase1800 isbut like 900 out con ventional thopter about fourth turn crank occupied simply changing direction flap up down happens twice per crank revolution Nothing much useful form lifting propelling aircraft accomplished during reversal yet quarter-turns use up much energy rubber motor ones work useless part energy goes making wavessound waves last time saw silent Ornithopter machine having two wings hooked common crankshaft wing making its flapping reversal other mid-stroke absorbing energy usefully would work tandem-wing models well course clap-and-fling effect would absent biplane flapper Reg Parham England appeared Frank Zaics old Yearbooks Recently following dis cussions Parham Pat Deshaye US quite some success configuration found 900 phasing work far better 1800 Curt Stevens kids cant remember set Outdoor record biplane thopter rather different sort top wing side continuous bottom wing other side wings teeter-tottered Another thing about thopters Clever alliteration eh conventional monoplane thopter tend think wing moving up upstroke down downstroke isnt simple order ver tical forces balance including effective force represented mass vertical acceleration parts wing tips go down fuse lageand center part wing along itmust go up Nature wouldnt have other way Hewitt Phillips will tell about paper published 1985 NFFS Symposium Report will published about Nats time wonder long will before some nut proposes ban biplane thop ters AMA competition Probably Book review Models Musings Bill Hannan Editors note maybe should have Models Meusings RMcM Another year another Hannan book consisting non-scale low-key fun machines bit different recent Scrapbook Scale series Eighteen full-size plans presented along appropriate construction arti cles 14 rubber-powered models including two basic biplanes two profile helicop ters Escondido Mosquito String less Wonder flying disc canard tiny rubber-power model FAI Power model whimsical Bostonian plus four simple gliders along lots typically-Hannan philosophical tidbits wit humor 56 pages 8A x 11 55 photos 30 draw ings soft cover price $895 bookshop hobby shop doesnt carry order directly publisher W C Hannan Graphics PO Box Escondido CA 92025 Include $1 postage handling plus 6% sales tax live California Bob Meuser 4200 Gregory St Oakland CA 94619 FF Scale/Warner Continued page 61 handled coated wheel should spun using axle until dry enough set aside thorough drying Spin couple minutes let stuff stop moving wheel two-inch wheel takes about 20 seconds slow turn goo get well-coated thinned material provides flatfinish perfect rubber appearance instead right-out-of-the-can gloss finish thick material Extra Plasti-Dip should poured back can future use Youll have need can use coat screwdrivers pliers handles waterproof electrical stuff dip rubber hand-grips joysticks million other fun things Storing can upside down may retard thinner evap oration make sure its larger emptycan just case leaks Plasti-Dip available local hardware parts store can located via PDI Inc 1458 West Country Road C St Paul MN 55113 phone 612 633-9633 Mcjunkin jig No cant dance it may prove value next time have make round-type fuselage nacelle Bob Meuser mention ed August column saying too complicated describe Well Bob will glad send Xerox entire process send him large SASE meantime photo should get old-timers going Begin ners may want stick old half shell number la Guillows kits Basically process consists heavy cardboard templates bulkhead sta tion threaded 1/4-in dowel align ment bulkhead formers have first dipped melted wax Spacer pieces Continued page 148 78 Model Aviation
