Free Flight: Duration

FCC FlighE Duration Bob Meuser MEUSINGS A lot has said both visible underground model aviation press concerning new 1980-81 Easy B rules affectionately called Botched B Bungled B etc event nobody wanted True would have nice AMA rules Easy B reflected what everyone wanted rules wishful thinking best has nothing controversy over rules Easy B since invented would helpful f modelers would pay attention rules proposals inform theirEF Contest Boards opinions key point seems have missed People seem assuming inasmuch official Easy B event rule book must fly Easy B event according rules simply true Any rules can specified contest organizers care specify provided safety compromised official AMA-sanctioned meet meet could event old Easy B new Easy B both Absolutely nothing has taken away 1980-81 rules wasnt official traditional Easy B event before isnt now What has added totally new official AMA Indoor event unfortunately perhaps called Easy B Inasmuch Indoor community has taken delight having sorts crazy events categories set official records would think would wringing hands glee rather anguish ample evidence some contest organizers aware point annual US Free Flight Championships AMA Gas 7ig6t cftm Engines K&-B ft535 Prop Kc1% 61-4#zss 200 Wash Out t~S 717as~ r4y/it wing i 1fr odwn thrust mCms I2AW1 1025 f-sf I1~ events held under old VTO rules official AMA rules isnt club country flies either Indoor Outdoor Flying Scale Peanut events entirely according AMA rules AMA Nats holds nonAMA-rule events official Nats events despite being specf1cally prohibited AMA rule book despite annual bitching AMA Nats Planning Committee via AMA Headquarters about AMA ignoring its own rules Ed note Bob refers case 1977 Nats Easy B flown different set rules Provisional rules AMA rule book RMcM Based precedent see no reason traditional Easy B event could held future Nats official Nats event instead official rule book Easy B event provided right people lean hard enough right people So own thing quit bellyaching Easy-B types youre ahead dont seem know Boeing Management Association Contest Scholarship prizes worth $3500 plus trophies admiration peers should sufficient incentiveif under 19 years /043 00 837 50 159 426 age July 11 1981to take whack annual event wide range events Free Flight Control Line Rocket addition two Specialty events RC Sailplane Design Craftsmanship way rigged dont stand much chance winning scholarship fly category two categories will quite nicely Historically Free Flighters have done rather well Usually some special arrangements have made putting up contestants parents unable accompany old folks havent ignored will awardsbut big moneyfor Open-class fliers too Interested Check Boeing Manage ment Assoc Attn Ted Caputo Org 4-1800 Mail Stop 63-10 P0 Box 3707 Seattle WA 98124 Covering flimsy wings following hint hobbyist comes Paul Mcllrath designer Sigs Customaire Cabinaire 29er kits Covering flimsy indoor wing panel can difficult because light tissue condenser paper tends pull down wrinkle between ribs whenever chordwise tension applied have trouble like try laying strip 56 Model Aviation Biplane ornithopter uIck uaxter dreamed up wing rigid although top has dihedral Photo right gives general idea flap Upper-right lower-left panels go up/down unison ditto opposite panels Nose boom holds balance weighta clear case using whatever works Bill Warner photos single-function device Meuser photo writing paper about h chord over frame before covering Curl paper slightly matches curve ribs lay tissue right over Youll find covering can pulled quite tight buckling Attach tissue leading trailing edges first slide writing paper endwise just far enough permit attaching tissue rib end Finally slip support completely Out dope covering other end rib Removing supporting paper will also leave little slack front-to-rear reducing warp ing tendencies paper tightens age system should work straight-tapers well constant-chord wings Sorry no ellipses Just sure have clear path slide paper out end panel other Witch Hawks Although rather new Free Flight scene Jim Clems Witch Hawk has made rather impressive dent system hands Bill Dunlop Bill Jenkins Smaller versions shown first 2A Nats setting national record hands Bill Jenkins Dunlop took fifth 1980 Nats addi tion hiizlt placins thc Y2A ver sion Dunlop took first lass B settin record Jenkins took fifth both 500 version simple model well flown about Bauer timer Bauer Electronic Timer No 2240 Sorry didnt report previous 2239 versions breaks designing timer Ken Bauer following goals mind few moving parts fail safe towline breaks bats poop out anything else goes awry thing must DT greater accuracy mechanical timers despite heat cold moisture dirt dark night small size weight fit conveniently Nordic A/2 Glider fuselage no cleaning servicing required except battery replacement Ken seems have achieved goals have put the thing perspective Continued page 122 J ~ OR CURVE R COVERING AID FOR LIGHTWEIGHTS simple typing-paper shield allows Paul Mcllrath cover Indoor models very light tissue getting usual wrinkles between ribs info column April1981 57 Prototype Bauer Electronic DT Timer No 2240 see textl Metal Jim Jones new Adjustable Razor Plane info price column rectangle right attached DT-line Magnetic forces hold place modified relay coil until electric power interrupted either electronic timer unit center battery failure miniswitch timer unit allows desired actuation time coded Switch unitat left resetsthetimerwheneverthere tug thetowline David Hagen doesnt look too serious about new Pennyplane-class Indoor modeI its because isntt photo opens new Write-a-Caption Contest Details column Entry deadline May 1 1981 Meuser photo New Peck-Polymers mini-sharpening stone looks like must item serious modelers razor blades hobby-knife blades Good scissors fish hooks too Read column Bob Diefenderfer know get picture ot favorite model column Emma Jane Shealer restrains old-time Sniffer FF us Bobfliesitwithadetuned Holland Hornet engine properweight no ballast required Bob member Flying Dutchmen Aero modelers Reading PA us.. MJ MAS ENTERPRISES/N NATIONAL CHAMPIONSPECIALISTS IN MA ProudlyHeads C HELICOPTERS AMERICAN R/C HELICOPTERS FINE LINE OF HELICOPTERS MJ MAS ENTERPRISES now offering totally new semite helicopter enthusiast One-stop shopping yoar R/C Helicopter needt regardless what youre flying discoant prices also offnrieg free see-up flying inscraction yours asking have bails flown analyzed entry major hrar Helicopter anail ahl~ staff qualified answer questiona ranging front installing train ing gear flying ship inserted Custom-built Helicopters include choice Helicopter Eng Radio Test Flown Limited gasisl COMMANDER wish Engine-off Landing LIST $38995 SPECIAL $32500 AMERICAN R/C HELICOPTER REVOLUTION II 60 SIZE LIST IAL $27995 MANTIS 40 POWERED HELICOPTER LIST 5qggg CALL FOR PACKAGE DEAL M J MAS ENTERPRISES P0 Box 727 Miami FL 33197 Phone 305 255-0658 SCHLUTER HELl BOY 68 Size Reg $38995ONLY $34995 Schluter Heiicsgsnr Parts StockIncluding Pipes Fuselages Etc HELl-BOY MAIN ROTOR BLADES Punt no BS1Only $1595 S7F ,Sstm 80NOW CARRYING THE ihirshe LINE OF FINE HELICOPTERS MODEL 505 MODEL 707 CALL FOR OUR LOW PRICES INSTRUCTIONAL TAPES NOW AVAILABLE Building end Trimming Flying Contest Flying Nocice Expert Autorotutions setup/Practice Aerobatics/leeerted Flight NEW FROM WORLD ENGINES ZENITH 40 POWERED HELICOPTER 5 HOUR CONSTRUCTION 7- List $23995 SPECIAL Only $16995 Price Includes Estru Set Main Rotor Tail Rotor Blades FF Old-Timers/Haught Continued page 55 its all-up weight 3 oz complete six strands -in rubber about 20 grams model handles power quite weU equipped sub-rudder wont handle high power kit plan shows nose block retained rubberbands feature find desireable contest Rubber ships Nothing can disturbing see glide ruined dangling prop nose block assembly after perfect altitude-grabbing climb As presented kit model has removable tail surfaces no dethermalizer long chases free-wheeling prop better install dethermalizer John Pond OldTime Plan Service PO Box 3215 SanJose CA95156hasboththeoriginal original kit plan available Next time youre stretched out packing turns counting under breath someone sks get OT rubber Say Get Sparky keep counting New engine During recent visit John Morrell Simplex Miniature Engines 143 RichKIORITZ Deep Finn For7 Carb Needles &Throgtle Optimum CoolingAccessible Engine Running 21/4 Flywheel Small Magneto 15/BinSisBolt Aluminum Hub Endorsed Don Godfrey Phone 607 722-1765 Pre-Drilled Props Available Ask About Custom Built KIORITZ Engines 9 Points Sealed Rear Housing $189 Pre-Paid Orders Pay Shipping Dealer Inquiries Welcome Limited mond El Segundo CA 90245John opened briefcase produced prototype pro posed new product sideport 19 ignition engine engine based old Paul Lindberg Hornet would fill current void Old-Timer activity created scarcity old Class engines John selected sideport engine rather popular rotary valve engine because its classic appeal quickly dug out clamp-down engine test stand self-contained field ignition test box 10-6 prop bolted tank filled 3-to 1 fuel mixture few quick flips brought engine life after carefully tuning needle spark advance solid 6000 rpm attained exactly out standing engine size John plans work up least another 1000 rpmand hopefully moreto make engine competitive prototype equipped very good Simplex timer built around Super Cyclone-type points NGK spark plug Some porting minor induction changes planned well some construction changes simplify pro duction course final product will submitted SAM engine committee gain approval original type competition purpose thus eliminate engine-run penalties associated modem glow engine conversions ENGINES BY GIBBS HOBBY & RESEARCH Original Developer Factory Trained Authorized Master Service Dealer SPECI FICATIONS 242 Cu 397CC 32HPat 8000 rpm Weight 61/2 lb Ball Bearings Crank Caged Rollers Rod Piston Pin Walbro Pump Garb 3 Ring Piston GIBBS HOBBY & RESEARCH 6195 HilItield StNW NCANTON OHIO 44720 Phone216499-8854 After 600PM Accept Visa & Master Card way John has produced second run Simplex 25s identical original production run all-machined parts Sooner later will have resort cast crankcase due rising labor costs good-starting easily-handled engine good power output 1981 SAM Champs Al HeIlman West Coast SAM Vice President sends us advance informa tion SAM Champs next year Taft CA Free Flight capital world has chosen place SAM Champs will held 1981 dates selected June 30 July 1 July 2 dates Tuesday Wednesday Thursdaytraditional SAM Champs selections days permit driving contest start Friday night anywhere US Al also reminds us will have extra day returning home because 4th July holiday bean feed will held Monday night June 29 Accommodations will announced later current plans call making use dorms Taft Junior College Camping field will permissible list avallable motels will furnished later Hellman has announced will assisted Larry Clark Contest Managers duties Bruce Chandler Southern California Ignition Fliers Society SCIFS will Free Flight CD John Targos SAM 49 will RC Contest Director Flight rules will current SAM rules applicable Engine runs will per SAM rule book maxes will 5 mmor defined rule book case RC events Clarence Haughl Rt 5 Box 16 CoeurdAlene ID 83814 FF Duration/Meuser Continued page 57 technology has around half decade Hundreds Free Flight elec tronics-oriented brothers have taken whack Successful one-of-a-kind affairs have re ported potential marketa few hundred yearwould elicit yawn Hewlitt Packard Silicon Valley remains coldbed social rest Bauers first hit commercially fruitless market guts unit consists couple rectangles electronic peg-board mini-DIP switch setting DT times 8029 inte grated-circuit timer module solenoid holdingin dont DT yet mode mini-microswitch resetting timing tug 122 Model Aviation line connector hooking thing up standard 9V transistor radio battery bunch resistors ICs condensers miscellaneous electrical garbage Im about try sort out its hand-wired loving care battery might hangup standard cheapie 9V radio bat weighs 325 grams bit over ounce tough pill.not really bats cheap available thin could design around plug-in replacement Seelig Most A/2 gliders use bit ballast anyhow standard battery should good some 20 hours flying time lighter battery Mallory PX-27 mercury available has tested application DT times can set 5 635 seconds 5-sec increments times may come out precisebut reproducible nominal 180 sec may come out 1832 sec will come out 1832 sec time fail-safe feature costs battery life current battery holds solenoid dont DT mode bats die model DTs Later versions after conceivable bugs have killed will built using proper printedcircuit boards basic unit weighs 25 grams measures 25/32-in high 1-19/32-in wide 11/16-in deep battery weighing 33 grams measures 1 x 21/32 x 1-29/32-in pay money take chances exactly timer backed 100% warranty timer Old-Timer ignition engines will probably hit market soon multifunction timer Power fliers under development little farther off glider timers availble $25 Ken Bauer 627 Monroe Orange CA 92667 New razor plane Jim Jones adds Adjustable Razor Plane already extensive line includes Adjustable Rubber Stripper Ad justable Balsa Stripper non-adjustable Fiberglass Prop Fixtures neat little affair nicely made maple wood-frame planes again proper woodworking circles uses heavy single-edge blades Jim also mongers like ordinary hardware-store blades except no stiffener along back good move experience razor planes using double-edge blades using anything other softestofbalsa disaster thin blades flex crumble single-edge bladet lots tougher just sharp Adjustability-wise might expecting screw adjustment would just dandy would probably require quadrupling price Rather plane built more-orless time-honored tradition wooden planes except little metal crossbar seems like improvement wooden wedge tucked under crossbar jams blade place takes bit fussing get hang adjusting blade position Old Bumblethumbs getting nice lO-mil shavings just few minutes Jim recommends balsa will cut spruce regular wood planes better price $1150 plus $150 postage Jim Jones 36631 Ledgestone Mt Clemens MI 48043 New Peck have proper set stonescarborundums hard soft Arkansas likeyou dont need Pecks Sharpy failing can get Sharpy tenth price appears merely chunk hardboard such tempered Masonite coating course abrasive side fine other re-sharpening razor blades hobbyNo other prop pulls FLIGHT LINE STARTER BOX THE DELUXE Completely Assembled Compact t Perfect Competitor Holds 12v Battery Power Panel Rack Starter ALSO New Drawer Storage Only $1495 information write call TheP0 Box 4981 Pike 431 Harrisburg Flidht Lancaster PA 17604 BxPh 7172912136 Dealer lnquwies Invited knife blades like despite its humble appearance fool thing works rather well instructions caution user draw blade away edge isnt way grandfather taught sharpen blade es pecially final stages wire-edge tends build up despite humble appearance wasnt often wrong presume Pecks caution prevent tyro cutting right through abrasive coating tried going contrary Pecks instructions didnt get ee aeaier oroer airect 33rRoIN7D 2541 NE 11th Court Pompano Beach Florida 33062 OLD TIMER KITS Full Partial Kits Tyro Model Suppty--Full Kits--R ic FF NEW Bay Ridge Mike 48* 049-09 *A RIcS2895 Playboy Sr 60 Pylon 19-35$4496 4Kg Models--Full Kits--Gas Rubber 1940 Buzzard Bombshell 72 19-31 RIG-FF $4995 1939 Korda Wakefield 44 Cabin Rubber $1495 & R Models 020 ReplicaFree Flight 1941 Strato Streak 33 Full Kit $1295 P & B Semi-Kils--Rlb Tip & Former Kilo 1949 So Long 50 A-B cabin Plan Extra $1450 Gompanion Stcipwood Kit So Long--$9 59 1936 Buccaneer 94 cabin Plan Extra $2199 Companion Stripwood Kit Buc--$2596 1936 Trenton Terror 72 cabin Plan Extra $1650 Companion Stripwood Kit Trenton--$13 72 [Plans So Long $300 Buc $410 T Terr $150] Midway Model Co--Full Partial Kits Rib Tip & Former Partial Kits--RIG FF-Cut 1926 Flying Quaker 84 cabin Plan Inci $2150 1937 Quaker Flash 67 cabin Plan IncI $1750 1937 Long cabin 79fl Plan Extra-5500 $1100 Replica Old TImers-- 020 Gas Electric 1940clipper MK II 16 FF 1h R/G$1495 1940Sailplane 36 FF 1 Gb itc$1491 1941Playboy Sr. 36 PP 1 h RIG$1295 Old Time Ric--Full Kits--I0 11 Engines 1939 Powerhouse 50 1-3 Ch K/c $1596 1939 Air Tralla Sportater 59 23 Gb It/C $3596 BOOKS ON OLD TIMER MODELS Anlique Old Timer Model Air Croft $1000 Air Age Gas Models MAN Reprints $391 FREE PLIGHT KITS Sport Scale Curtias Pusher 1912 IR/NI 26 GOI $990 Longater Ill [K/NI 36 020 PP 1Gb RIG$1166 Bell Aircobra [Easy Built] 35 Rubber $700 NEW Thermal Piglet 19 I4LG DT equiped $499 FJW Tiny Piglet 135 HLO Complete Kit $349 NEW Merlin 19 HLG canada Nata Winner $499 IICTRIG SYSTEMS AND KITS Astro 020 Free Flight System Fully Wired $2696 1925 Miss America Midway 36 020 PPR/G $1295 Shipping Handling 50 Page CATALOGUE up ro $909 add $150 $100 PP copy will $601 $2600 add $129 sent free upon $2001 $5506 add $100 request order $9501 $7009 add $350 o y am aver $7900 add $906 PO Boa 3009 GA Addressees add 6% Seal Beach Ga 90790 Sales Tag Send MO GK 1719 999-6223[Best Vise/MG #EXPl mornings recorder--4 COD-Exact Ghg$l59 Hdl activates S rings] April 1981 123 biggie like Now experience full motor potential Dynathrusts 100% accurate pitch airfoil Costs less buy fly because its unequaled durability 15 6 pitch $ 700 18 6 8 pitch $1000 20 8 10 pitch $1400 Prices include urs charges MC 0 VISA 0 COD 0 CHECK 0 MO NEW!NEW!NEW! H0~ H0 ii — heMs speualtger FF CONTEST WINNERS 4-A Witch Hawk 1979 NATS 1st PL Win ner record setter A-B Witch Hawk 1980 NATS 1st PL winner Clus B Plans $600 PP A-A kit $1400 plus 10% post age Two kits postage paid Clemcra ft p o Box 524 Sand Springs OK 74063 FUN SCALE IS HERE Easier Fly Yet Very Maneuverable Over 20 step-by-step building illustrations easier follow photos Lands Like Trainer Ideal 2nd Trainer Novice 19-25 Engine 19-40 Eng Span 51 Area 490 sq 18-20 oz wing loading 3-4 lbs Upnght Engine Can Built Flown 7 Days Due New Construction Techniques WILL FLY AS SLOW AS PIPER CUB MODEL $4495 MUSTANG Write free Catalog JEMCO 1305 Foothill Dr Vista CA 92083 714 724-3242 trouble think might get trouble blade held too steep angle you arent going end up much cutting edge anyhow new 5-to-i winder apparently identical sold Sterling includes antibacklash ratchet can removed quite easily dont like Which wont Added Pecks already extensive line Peanut Scale 3-inchers notorious Lacey M-l0 notorious mainly because wins lot despite efforts rig rules otherwise wing area nearly 50 sq isnt surprising thing would fly pretty well 13incher kit model designed Eng lands expert Peanuteer Butch Hadland contains 1/20-sq balsa fuselage prititwood obscene number ribs decals plastic prop bushing wheels two-page plans instruc tionsincluding proof-of-scale three-views photos Help sort gave up collecting old model plane magazines because outrageous prices people asking Im still interested adding collection old model aviation books moment Im particu larly interested completing collection Aero Modeller Annuals issue lack luck would have first rarest 1948 issue have willing part name rock-bottom price Ill either accept reject Im big haggling have seldom used column personal purposes such So just keep things fair square Ill give afreeplugto anyone else wants 1948 Aero Modeller Annual has other issues After get outdone Aero Modeller having own Caption Contest person supplying best caption Pennyplane photo elsewhere column May 1 will awarded choice either one-month sub scription DustersDirty Diaper newsletter Oakland Cloud Dusters DT rubberband Bob Meuser 4200 Gregory St Oakland CA 94619 NN 7 ~2 COBRA $4G95 ALL parts cut shape UnIque ng construction eliminates dIhedral braces wing sheeting DesIgned Iron-on coverings 0 124 Model Aviation

FCC FlighE Duration Bob Meuser MEUSINGS A lot has said both visible underground model aviation press concerning new 1980-81 Easy B rules affectionately called Botched B Bungled B etc event nobody wanted True would have nice AMA rules Easy B reflected what everyone wanted rules wishful thinking best has nothing controversy over rules Easy B since invented would helpful f modelers would pay attention rules proposals inform theirEF Contest Boards opinions key point seems have missed People seem assuming inasmuch official Easy B event rule book must fly Easy B event according rules simply true Any rules can specified contest organizers care specify provided safety compromised official AMA-sanctioned meet meet could event old Easy B new Easy B both Absolutely nothing has taken away 1980-81 rules wasnt official traditional Easy B event before isnt now What has added totally new official AMA Indoor event unfortunately perhaps called Easy B Inasmuch Indoor community has taken delight having sorts crazy events categories set official records would think would wringing hands glee rather anguish ample evidence some contest organizers aware point annual US Free Flight Championships AMA Gas 7ig6t cftm Engines K&-B ft535 Prop Kc1% 61-4#zss 200 Wash Out t~S 717as~ r4y/it wing i 1fr odwn thrust mCms I2AW1 1025 f-sf I1~ events held under old VTO rules official AMA rules isnt club country flies either Indoor Outdoor Flying Scale Peanut events entirely according AMA rules AMA Nats holds nonAMA-rule events official Nats events despite being specf1cally prohibited AMA rule book despite annual bitching AMA Nats Planning Committee via AMA Headquarters about AMA ignoring its own rules Ed note Bob refers case 1977 Nats Easy B flown different set rules Provisional rules AMA rule book RMcM Based precedent see no reason traditional Easy B event could held future Nats official Nats event instead official rule book Easy B event provided right people lean hard enough right people So own thing quit bellyaching Easy-B types youre ahead dont seem know Boeing Management Association Contest Scholarship prizes worth $3500 plus trophies admiration peers should sufficient incentiveif under 19 years /043 00 837 50 159 426 age July 11 1981to take whack annual event wide range events Free Flight Control Line Rocket addition two Specialty events RC Sailplane Design Craftsmanship way rigged dont stand much chance winning scholarship fly category two categories will quite nicely Historically Free Flighters have done rather well Usually some special arrangements have made putting up contestants parents unable accompany old folks havent ignored will awardsbut big moneyfor Open-class fliers too Interested Check Boeing Manage ment Assoc Attn Ted Caputo Org 4-1800 Mail Stop 63-10 P0 Box 3707 Seattle WA 98124 Covering flimsy wings following hint hobbyist comes Paul Mcllrath designer Sigs Customaire Cabinaire 29er kits Covering flimsy indoor wing panel can difficult because light tissue condenser paper tends pull down wrinkle between ribs whenever chordwise tension applied have trouble like try laying strip 56 Model Aviation Biplane ornithopter uIck uaxter dreamed up wing rigid although top has dihedral Photo right gives general idea flap Upper-right lower-left panels go up/down unison ditto opposite panels Nose boom holds balance weighta clear case using whatever works Bill Warner photos single-function device Meuser photo writing paper about h chord over frame before covering Curl paper slightly matches curve ribs lay tissue right over Youll find covering can pulled quite tight buckling Attach tissue leading trailing edges first slide writing paper endwise just far enough permit attaching tissue rib end Finally slip support completely Out dope covering other end rib Removing supporting paper will also leave little slack front-to-rear reducing warp ing tendencies paper tightens age system should work straight-tapers well constant-chord wings Sorry no ellipses Just sure have clear path slide paper out end panel other Witch Hawks Although rather new Free Flight scene Jim Clems Witch Hawk has made rather impressive dent system hands Bill Dunlop Bill Jenkins Smaller versions shown first 2A Nats setting national record hands Bill Jenkins Dunlop took fifth 1980 Nats addi tion hiizlt placins thc Y2A ver sion Dunlop took first lass B settin record Jenkins took fifth both 500 version simple model well flown about Bauer timer Bauer Electronic Timer No 2240 Sorry didnt report previous 2239 versions breaks designing timer Ken Bauer following goals mind few moving parts fail safe towline breaks bats poop out anything else goes awry thing must DT greater accuracy mechanical timers despite heat cold moisture dirt dark night small size weight fit conveniently Nordic A/2 Glider fuselage no cleaning servicing required except battery replacement Ken seems have achieved goals have put the thing perspective Continued page 122 J ~ OR CURVE R COVERING AID FOR LIGHTWEIGHTS simple typing-paper shield allows Paul Mcllrath cover Indoor models very light tissue getting usual wrinkles between ribs info column April1981 57 Prototype Bauer Electronic DT Timer No 2240 see textl Metal Jim Jones new Adjustable Razor Plane info price column rectangle right attached DT-line Magnetic forces hold place modified relay coil until electric power interrupted either electronic timer unit center battery failure miniswitch timer unit allows desired actuation time coded Switch unitat left resetsthetimerwheneverthere tug thetowline David Hagen doesnt look too serious about new Pennyplane-class Indoor modeI its because isntt photo opens new Write-a-Caption Contest Details column Entry deadline May 1 1981 Meuser photo New Peck-Polymers mini-sharpening stone looks like must item serious modelers razor blades hobby-knife blades Good scissors fish hooks too Read column Bob Diefenderfer know get picture ot favorite model column Emma Jane Shealer restrains old-time Sniffer FF us Bobfliesitwithadetuned Holland Hornet engine properweight no ballast required Bob member Flying Dutchmen Aero modelers Reading PA us.. MJ MAS ENTERPRISES/N NATIONAL CHAMPIONSPECIALISTS IN MA ProudlyHeads C HELICOPTERS AMERICAN R/C HELICOPTERS FINE LINE OF HELICOPTERS MJ MAS ENTERPRISES now offering totally new semite helicopter enthusiast One-stop shopping yoar R/C Helicopter needt regardless what youre flying discoant prices also offnrieg free see-up flying inscraction yours asking have bails flown analyzed entry major hrar Helicopter anail ahl~ staff qualified answer questiona ranging front installing train ing gear flying ship inserted Custom-built Helicopters include choice Helicopter Eng Radio Test Flown Limited gasisl COMMANDER wish Engine-off Landing LIST $38995 SPECIAL $32500 AMERICAN R/C HELICOPTER REVOLUTION II 60 SIZE LIST IAL $27995 MANTIS 40 POWERED HELICOPTER LIST 5qggg CALL FOR PACKAGE DEAL M J MAS ENTERPRISES P0 Box 727 Miami FL 33197 Phone 305 255-0658 SCHLUTER HELl BOY 68 Size Reg $38995ONLY $34995 Schluter Heiicsgsnr Parts StockIncluding Pipes Fuselages Etc HELl-BOY MAIN ROTOR BLADES Punt no BS1Only $1595 S7F ,Sstm 80NOW CARRYING THE ihirshe LINE OF FINE HELICOPTERS MODEL 505 MODEL 707 CALL FOR OUR LOW PRICES INSTRUCTIONAL TAPES NOW AVAILABLE Building end Trimming Flying Contest Flying Nocice Expert Autorotutions setup/Practice Aerobatics/leeerted Flight NEW FROM WORLD ENGINES ZENITH 40 POWERED HELICOPTER 5 HOUR CONSTRUCTION 7- List $23995 SPECIAL Only $16995 Price Includes Estru Set Main Rotor Tail Rotor Blades FF Old-Timers/Haught Continued page 55 its all-up weight 3 oz complete six strands -in rubber about 20 grams model handles power quite weU equipped sub-rudder wont handle high power kit plan shows nose block retained rubberbands feature find desireable contest Rubber ships Nothing can disturbing see glide ruined dangling prop nose block assembly after perfect altitude-grabbing climb As presented kit model has removable tail surfaces no dethermalizer long chases free-wheeling prop better install dethermalizer John Pond OldTime Plan Service PO Box 3215 SanJose CA95156hasboththeoriginal original kit plan available Next time youre stretched out packing turns counting under breath someone sks get OT rubber Say Get Sparky keep counting New engine During recent visit John Morrell Simplex Miniature Engines 143 RichKIORITZ Deep Finn For7 Carb Needles &Throgtle Optimum CoolingAccessible Engine Running 21/4 Flywheel Small Magneto 15/BinSisBolt Aluminum Hub Endorsed Don Godfrey Phone 607 722-1765 Pre-Drilled Props Available Ask About Custom Built KIORITZ Engines 9 Points Sealed Rear Housing $189 Pre-Paid Orders Pay Shipping Dealer Inquiries Welcome Limited mond El Segundo CA 90245John opened briefcase produced prototype pro posed new product sideport 19 ignition engine engine based old Paul Lindberg Hornet would fill current void Old-Timer activity created scarcity old Class engines John selected sideport engine rather popular rotary valve engine because its classic appeal quickly dug out clamp-down engine test stand self-contained field ignition test box 10-6 prop bolted tank filled 3-to 1 fuel mixture few quick flips brought engine life after carefully tuning needle spark advance solid 6000 rpm attained exactly out standing engine size John plans work up least another 1000 rpmand hopefully moreto make engine competitive prototype equipped very good Simplex timer built around Super Cyclone-type points NGK spark plug Some porting minor induction changes planned well some construction changes simplify pro duction course final product will submitted SAM engine committee gain approval original type competition purpose thus eliminate engine-run penalties associated modem glow engine conversions ENGINES BY GIBBS HOBBY & RESEARCH Original Developer Factory Trained Authorized Master Service Dealer SPECI FICATIONS 242 Cu 397CC 32HPat 8000 rpm Weight 61/2 lb Ball Bearings Crank Caged Rollers Rod Piston Pin Walbro Pump Garb 3 Ring Piston GIBBS HOBBY & RESEARCH 6195 HilItield StNW NCANTON OHIO 44720 Phone216499-8854 After 600PM Accept Visa & Master Card way John has produced second run Simplex 25s identical original production run all-machined parts Sooner later will have resort cast crankcase due rising labor costs good-starting easily-handled engine good power output 1981 SAM Champs Al HeIlman West Coast SAM Vice President sends us advance informa tion SAM Champs next year Taft CA Free Flight capital world has chosen place SAM Champs will held 1981 dates selected June 30 July 1 July 2 dates Tuesday Wednesday Thursdaytraditional SAM Champs selections days permit driving contest start Friday night anywhere US Al also reminds us will have extra day returning home because 4th July holiday bean feed will held Monday night June 29 Accommodations will announced later current plans call making use dorms Taft Junior College Camping field will permissible list avallable motels will furnished later Hellman has announced will assisted Larry Clark Contest Managers duties Bruce Chandler Southern California Ignition Fliers Society SCIFS will Free Flight CD John Targos SAM 49 will RC Contest Director Flight rules will current SAM rules applicable Engine runs will per SAM rule book maxes will 5 mmor defined rule book case RC events Clarence Haughl Rt 5 Box 16 CoeurdAlene ID 83814 FF Duration/Meuser Continued page 57 technology has around half decade Hundreds Free Flight elec tronics-oriented brothers have taken whack Successful one-of-a-kind affairs have re ported potential marketa few hundred yearwould elicit yawn Hewlitt Packard Silicon Valley remains coldbed social rest Bauers first hit commercially fruitless market guts unit consists couple rectangles electronic peg-board mini-DIP switch setting DT times 8029 inte grated-circuit timer module solenoid holdingin dont DT yet mode mini-microswitch resetting timing tug 122 Model Aviation line connector hooking thing up standard 9V transistor radio battery bunch resistors ICs condensers miscellaneous electrical garbage Im about try sort out its hand-wired loving care battery might hangup standard cheapie 9V radio bat weighs 325 grams bit over ounce tough pill.not really bats cheap available thin could design around plug-in replacement Seelig Most A/2 gliders use bit ballast anyhow standard battery should good some 20 hours flying time lighter battery Mallory PX-27 mercury available has tested application DT times can set 5 635 seconds 5-sec increments times may come out precisebut reproducible nominal 180 sec may come out 1832 sec will come out 1832 sec time fail-safe feature costs battery life current battery holds solenoid dont DT mode bats die model DTs Later versions after conceivable bugs have killed will built using proper printedcircuit boards basic unit weighs 25 grams measures 25/32-in high 1-19/32-in wide 11/16-in deep battery weighing 33 grams measures 1 x 21/32 x 1-29/32-in pay money take chances exactly timer backed 100% warranty timer Old-Timer ignition engines will probably hit market soon multifunction timer Power fliers under development little farther off glider timers availble $25 Ken Bauer 627 Monroe Orange CA 92667 New razor plane Jim Jones adds Adjustable Razor Plane already extensive line includes Adjustable Rubber Stripper Ad justable Balsa Stripper non-adjustable Fiberglass Prop Fixtures neat little affair nicely made maple wood-frame planes again proper woodworking circles uses heavy single-edge blades Jim also mongers like ordinary hardware-store blades except no stiffener along back good move experience razor planes using double-edge blades using anything other softestofbalsa disaster thin blades flex crumble single-edge bladet lots tougher just sharp Adjustability-wise might expecting screw adjustment would just dandy would probably require quadrupling price Rather plane built more-orless time-honored tradition wooden planes except little metal crossbar seems like improvement wooden wedge tucked under crossbar jams blade place takes bit fussing get hang adjusting blade position Old Bumblethumbs getting nice lO-mil shavings just few minutes Jim recommends balsa will cut spruce regular wood planes better price $1150 plus $150 postage Jim Jones 36631 Ledgestone Mt Clemens MI 48043 New Peck have proper set stonescarborundums hard soft Arkansas likeyou dont need Pecks Sharpy failing can get Sharpy tenth price appears merely chunk hardboard such tempered Masonite coating course abrasive side fine other re-sharpening razor blades hobbyNo other prop pulls FLIGHT LINE STARTER BOX THE DELUXE Completely Assembled Compact t Perfect Competitor Holds 12v Battery Power Panel Rack Starter ALSO New Drawer Storage Only $1495 information write call TheP0 Box 4981 Pike 431 Harrisburg Flidht Lancaster PA 17604 BxPh 7172912136 Dealer lnquwies Invited knife blades like despite its humble appearance fool thing works rather well instructions caution user draw blade away edge isnt way grandfather taught sharpen blade es pecially final stages wire-edge tends build up despite humble appearance wasnt often wrong presume Pecks caution prevent tyro cutting right through abrasive coating tried going contrary Pecks instructions didnt get ee aeaier oroer airect 33rRoIN7D 2541 NE 11th Court Pompano Beach Florida 33062 OLD TIMER KITS Full Partial Kits Tyro Model Suppty--Full Kits--R ic FF NEW Bay Ridge Mike 48* 049-09 *A RIcS2895 Playboy Sr 60 Pylon 19-35$4496 4Kg Models--Full Kits--Gas Rubber 1940 Buzzard Bombshell 72 19-31 RIG-FF $4995 1939 Korda Wakefield 44 Cabin Rubber $1495 & R Models 020 ReplicaFree Flight 1941 Strato Streak 33 Full Kit $1295 P & B Semi-Kils--Rlb Tip & Former Kilo 1949 So Long 50 A-B cabin Plan Extra $1450 Gompanion Stcipwood Kit So Long--$9 59 1936 Buccaneer 94 cabin Plan Extra $2199 Companion Stripwood Kit Buc--$2596 1936 Trenton Terror 72 cabin Plan Extra $1650 Companion Stripwood Kit Trenton--$13 72 [Plans So Long $300 Buc $410 T Terr $150] Midway Model Co--Full Partial Kits Rib Tip & Former Partial Kits--RIG FF-Cut 1926 Flying Quaker 84 cabin Plan Inci $2150 1937 Quaker Flash 67 cabin Plan IncI $1750 1937 Long cabin 79fl Plan Extra-5500 $1100 Replica Old TImers-- 020 Gas Electric 1940clipper MK II 16 FF 1h R/G$1495 1940Sailplane 36 FF 1 Gb itc$1491 1941Playboy Sr. 36 PP 1 h RIG$1295 Old Time Ric--Full Kits--I0 11 Engines 1939 Powerhouse 50 1-3 Ch K/c $1596 1939 Air Tralla Sportater 59 23 Gb It/C $3596 BOOKS ON OLD TIMER MODELS Anlique Old Timer Model Air Croft $1000 Air Age Gas Models MAN Reprints $391 FREE PLIGHT KITS Sport Scale Curtias Pusher 1912 IR/NI 26 GOI $990 Longater Ill [K/NI 36 020 PP 1Gb RIG$1166 Bell Aircobra [Easy Built] 35 Rubber $700 NEW Thermal Piglet 19 I4LG DT equiped $499 FJW Tiny Piglet 135 HLO Complete Kit $349 NEW Merlin 19 HLG canada Nata Winner $499 IICTRIG SYSTEMS AND KITS Astro 020 Free Flight System Fully Wired $2696 1925 Miss America Midway 36 020 PPR/G $1295 Shipping Handling 50 Page CATALOGUE up ro $909 add $150 $100 PP copy will $601 $2600 add $129 sent free upon $2001 $5506 add $100 request order $9501 $7009 add $350 o y am aver $7900 add $906 PO Boa 3009 GA Addressees add 6% Seal Beach Ga 90790 Sales Tag Send MO GK 1719 999-6223[Best Vise/MG #EXPl mornings recorder--4 COD-Exact Ghg$l59 Hdl activates S rings] April 1981 123 biggie like Now experience full motor potential Dynathrusts 100% accurate pitch airfoil Costs less buy fly because its unequaled durability 15 6 pitch $ 700 18 6 8 pitch $1000 20 8 10 pitch $1400 Prices include urs charges MC 0 VISA 0 COD 0 CHECK 0 MO NEW!NEW!NEW! H0~ H0 ii — heMs speualtger FF CONTEST WINNERS 4-A Witch Hawk 1979 NATS 1st PL Win ner record setter A-B Witch Hawk 1980 NATS 1st PL winner Clus B Plans $600 PP A-A kit $1400 plus 10% post age Two kits postage paid Clemcra ft p o Box 524 Sand Springs OK 74063 FUN SCALE IS HERE Easier Fly Yet Very Maneuverable Over 20 step-by-step building illustrations easier follow photos Lands Like Trainer Ideal 2nd Trainer Novice 19-25 Engine 19-40 Eng Span 51 Area 490 sq 18-20 oz wing loading 3-4 lbs Upnght Engine Can Built Flown 7 Days Due New Construction Techniques WILL FLY AS SLOW AS PIPER CUB MODEL $4495 MUSTANG Write free Catalog JEMCO 1305 Foothill Dr Vista CA 92083 714 724-3242 trouble think might get trouble blade held too steep angle you arent going end up much cutting edge anyhow new 5-to-i winder apparently identical sold Sterling includes antibacklash ratchet can removed quite easily dont like Which wont Added Pecks already extensive line Peanut Scale 3-inchers notorious Lacey M-l0 notorious mainly because wins lot despite efforts rig rules otherwise wing area nearly 50 sq isnt surprising thing would fly pretty well 13incher kit model designed Eng lands expert Peanuteer Butch Hadland contains 1/20-sq balsa fuselage prititwood obscene number ribs decals plastic prop bushing wheels two-page plans instruc tionsincluding proof-of-scale three-views photos Help sort gave up collecting old model plane magazines because outrageous prices people asking Im still interested adding collection old model aviation books moment Im particu larly interested completing collection Aero Modeller Annuals issue lack luck would have first rarest 1948 issue have willing part name rock-bottom price Ill either accept reject Im big haggling have seldom used column personal purposes such So just keep things fair square Ill give afreeplugto anyone else wants 1948 Aero Modeller Annual has other issues After get outdone Aero Modeller having own Caption Contest person supplying best caption Pennyplane photo elsewhere column May 1 will awarded choice either one-month sub scription DustersDirty Diaper newsletter Oakland Cloud Dusters DT rubberband Bob Meuser 4200 Gregory St Oakland CA 94619 NN 7 ~2 COBRA $4G95 ALL parts cut shape UnIque ng construction eliminates dIhedral braces wing sheeting DesIgned Iron-on coverings 0 124 Model Aviation