DURING 1930s number kits building zep pelins prefer dirigibles were really zeppelins America latter name used mainly because Zeppelin mans name name existing German firm kits inaccurate became fascinated graceful mon sters after reading Richard K Smiths beauti ful book Akron Macon plan 1/200th scale obtained National Air& Space Museum hut just didnt seem large enough sol able get 1/100th size same source Now something real airship 785 ft long 1329 ft diameter Big enough Drawing oft outline plan used plywood made four large longerons Formers made two halves epoxied longerons Diagonals glued keep structure sagging came hard part longitudinals stringers Positions spotted formers before assembly Stringers cut x bit oversize scale dimensions wanted structure would withstand inevitable mishaps Ro tating hull stringers epoxied onto main rings pairs opposite nne another trying maintain symmetry lhis naught however large size made hull prone movement Regardless careful simple act turning model over placing next stringer threw other stringers out line After stringer added rework other stringer positions Nearly glue joints broken loose repositioned great difficulties making teardrop shape total lack reference lines main stringers straight sighting directly front rear others compound curves time ready put match whole thing gritted teeth con tinued Modelers have true grit windows visible access hatches located framed using mostly photo references would impossible build model type using plan put opening view airship flying Next came airplane hangar opening 1 framed up structural members would visiblemostly girders used monorail transfer Curtiss F9 C2 Sparrowhawks portion two main rings show best advantage construction doped silver flat black paper placed behind fins made plywood balsa sheet stringers Plywood mounting pieces fir hull glued fins given preliminary fit entire structure given coat two clear dope sanded 1 decided use silk covering due huge size modeL first effort silk did want dope too heavily fear overtightening covering warping whole thing dismay dope flowed through silk contemplating building zeppelin note Akron Macon five coats dope total consequently did have slick smooth finish Actually put too much finish overlaps made silk covering stood out like sore thumb equal several inches full-size ship So after coat butyrate clear dope decided use lacquer silver powder finish coats thinking would make sure would shrink age forgot can put butyrate over other acetate-base finish opposite can done spoiling finish crazing crackingwhich what happened modeL After getting over initial shock realized effect gave weathered look much realistic time put much time model grew tired next two years hung garage ceiling being taken down long enough add Continued page 112 January 1981 41 finished Akron model display big Wings& WheelsMuseum allofasuddendoesnt look big despite its almost 8-ft length Surroundings give changed perception 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 31-4 lbs Upright Engine Can Built Flown 7 Days Due New Construction Techniques WILL FLY AS SLOW AS PIPER CUB MODEL W-i te Jot free Catalog JEMCO 1305 Eoothill Dr Vista CA 92083 714 724-3242 72 Wingspan GUADRA powered DRUINE TURBULENT Gross weight under 20 lbs No foam 1230 sq Simple construction fully detailed Proven design stable aerobatic Shock-absorbing landing gear takes abuse Full-size plans instructions photos best marketS30 pp USA DOUG MAC BRIEN 24 Truhy St Granhy Mass 01033 Send SASE info engine sound wilt have Doppler frequency shift added Youve heard Im sure rpm approaching model car train motorcycle etc appears increase suddenly begins decrease model passes begins retreat time hear true frequency just moment sound stops increasing begins decrease experience pitch pipe prices can range $450 over $600 Expect pay high price local music store low price alma maters campus bookstore should able order directly writing Florida College Bookstore Temple Terrace FL 33617 Enclose $450 plus $109 postage Zeppelin/Grigg Continued page 41 water- condensing radiators four vertical black rows running vertically up sides hull US NAVY lettering main control car carved single piece basswood plastic windows added sailor stood control wheel probably still would unfinished except Tom Scott Wings & Wheels Museum wanted Akron display forced myself get back work eight propeller out riggers made brass tubing piano wire being built separately hull glued soldered together original ship eight German Maybach engines 560-hp drove shafts geared props Ihese props could swiveled up down fore aft Akron could move under its own power direction except sideways 1 put plastic discs six outriggers carved mahogany props other two trapeze Curtiss fighters made piano wire soldered together Sparrowhawk model built Bachmann Boeing F4 B4 Gary Gordon volunteered saw still details still add deadline fast approaching must say details could added would give model cluttered appearance tend obscure basic form Akron hanging Wings & Wheels Museum Orlando FL written Come see you can look airplanes too Information full-size Akron diri gible length 785 feet diameter 1329 feet helium capacity 6500000 cubic feet speed 83 mph max first flight Septemher 25 1931 lost April 4 1933 CL Aerobatics/Paul Continued page 42 259 FAI Sporting Code deals weather conditions personal experience wind seemed excess 12 in/sec contest postponed distasteful part rules always seems draw ire competi tors counting highest qualifying flight final standings Sections 428 4214 deal number flights final standings called classification FAI Sporting Code year qualifying flights spread over three full days meant judges comparing flight Bill Werwage 1000 am Monday flight Bob Hunt 930 am Tuesday still same first round may argue judge supposed compare maneuver interpretation perfect maneuver round 69 fliers split over day-and-a-half just too momentous task expect really objective scores day day carry over high score count finals just ridiculous finals should another contest competitors starting out equal flying either two three official flights Actually plenty time fly three official flights count two highest scores especially since 15 competitors Since Precision Aerobatics luck draw has great deal influence outcome instances unfair penalize finalist using qualifying score may have lower relative competitors similar abilities just because flier poor draw can see no advantage carrying-over qualify ing score Certainly everyone will attempt fly best qualifying insure make finals can no question going easy does seem simple solution lengthy qualification procedure especially since flight circle permitted qualifying would expensive provide judges have two circles qualifying would big problem supply two circlesespecially since very difficult come up World Champion ships sites course would make sense have two qualifying circles split number competitors half add two scores obtained two official flights space money limitations foresee possibility Assuming qualifying circle will utilized same procedure selecting 15 finalists should retained except Section 4214 FAI Sporting Code should changed have finals consist best two scores three official flights Another item World Championships asked team manager protest judges did have individual recorder Anybody has ever judged according FAI rules knows difficult score write down scores maneuver Remember three inside loops 1oop awarded score zero 10 As ajudge have option trying write down score looking next loop waiting until three finished writing down what think remember about much falrer procedure able call out softly recorder scores separate part maneuver Unfortunately recorders 1 12 Model Aviation p4695 ALL pares cisC shape UnIque wing construction elinsinates dIhedral braces wing sheeting DesIgned Iron-on coverings 0 liD THE NEW FIREBALL GLOW PLUGS ARE LEAKPROOF AND BLOWOUT PROOF EVEN FOR THE NEW MONSTER ENGINES BUT THEY ARE STILL THE OLD PRICE OF $1 10 WRITE NOW! SWANSO 1/ PO Box 15 Wayne N 07470
Edition: Model Aviation - 1981/01
Page Numbers: 41, 112
DURING 1930s number kits building zep pelins prefer dirigibles were really zeppelins America latter name used mainly because Zeppelin mans name name existing German firm kits inaccurate became fascinated graceful mon sters after reading Richard K Smiths beauti ful book Akron Macon plan 1/200th scale obtained National Air& Space Museum hut just didnt seem large enough sol able get 1/100th size same source Now something real airship 785 ft long 1329 ft diameter Big enough Drawing oft outline plan used plywood made four large longerons Formers made two halves epoxied longerons Diagonals glued keep structure sagging came hard part longitudinals stringers Positions spotted formers before assembly Stringers cut x bit oversize scale dimensions wanted structure would withstand inevitable mishaps Ro tating hull stringers epoxied onto main rings pairs opposite nne another trying maintain symmetry lhis naught however large size made hull prone movement Regardless careful simple act turning model over placing next stringer threw other stringers out line After stringer added rework other stringer positions Nearly glue joints broken loose repositioned great difficulties making teardrop shape total lack reference lines main stringers straight sighting directly front rear others compound curves time ready put match whole thing gritted teeth con tinued Modelers have true grit windows visible access hatches located framed using mostly photo references would impossible build model type using plan put opening view airship flying Next came airplane hangar opening 1 framed up structural members would visiblemostly girders used monorail transfer Curtiss F9 C2 Sparrowhawks portion two main rings show best advantage construction doped silver flat black paper placed behind fins made plywood balsa sheet stringers Plywood mounting pieces fir hull glued fins given preliminary fit entire structure given coat two clear dope sanded 1 decided use silk covering due huge size modeL first effort silk did want dope too heavily fear overtightening covering warping whole thing dismay dope flowed through silk contemplating building zeppelin note Akron Macon five coats dope total consequently did have slick smooth finish Actually put too much finish overlaps made silk covering stood out like sore thumb equal several inches full-size ship So after coat butyrate clear dope decided use lacquer silver powder finish coats thinking would make sure would shrink age forgot can put butyrate over other acetate-base finish opposite can done spoiling finish crazing crackingwhich what happened modeL After getting over initial shock realized effect gave weathered look much realistic time put much time model grew tired next two years hung garage ceiling being taken down long enough add Continued page 112 January 1981 41 finished Akron model display big Wings& WheelsMuseum allofasuddendoesnt look big despite its almost 8-ft length Surroundings give changed perception 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 31-4 lbs Upright Engine Can Built Flown 7 Days Due New Construction Techniques WILL FLY AS SLOW AS PIPER CUB MODEL W-i te Jot free Catalog JEMCO 1305 Eoothill Dr Vista CA 92083 714 724-3242 72 Wingspan GUADRA powered DRUINE TURBULENT Gross weight under 20 lbs No foam 1230 sq Simple construction fully detailed Proven design stable aerobatic Shock-absorbing landing gear takes abuse Full-size plans instructions photos best marketS30 pp USA DOUG MAC BRIEN 24 Truhy St Granhy Mass 01033 Send SASE info engine sound wilt have Doppler frequency shift added Youve heard Im sure rpm approaching model car train motorcycle etc appears increase suddenly begins decrease model passes begins retreat time hear true frequency just moment sound stops increasing begins decrease experience pitch pipe prices can range $450 over $600 Expect pay high price local music store low price alma maters campus bookstore should able order directly writing Florida College Bookstore Temple Terrace FL 33617 Enclose $450 plus $109 postage Zeppelin/Grigg Continued page 41 water- condensing radiators four vertical black rows running vertically up sides hull US NAVY lettering main control car carved single piece basswood plastic windows added sailor stood control wheel probably still would unfinished except Tom Scott Wings & Wheels Museum wanted Akron display forced myself get back work eight propeller out riggers made brass tubing piano wire being built separately hull glued soldered together original ship eight German Maybach engines 560-hp drove shafts geared props Ihese props could swiveled up down fore aft Akron could move under its own power direction except sideways 1 put plastic discs six outriggers carved mahogany props other two trapeze Curtiss fighters made piano wire soldered together Sparrowhawk model built Bachmann Boeing F4 B4 Gary Gordon volunteered saw still details still add deadline fast approaching must say details could added would give model cluttered appearance tend obscure basic form Akron hanging Wings & Wheels Museum Orlando FL written Come see you can look airplanes too Information full-size Akron diri gible length 785 feet diameter 1329 feet helium capacity 6500000 cubic feet speed 83 mph max first flight Septemher 25 1931 lost April 4 1933 CL Aerobatics/Paul Continued page 42 259 FAI Sporting Code deals weather conditions personal experience wind seemed excess 12 in/sec contest postponed distasteful part rules always seems draw ire competi tors counting highest qualifying flight final standings Sections 428 4214 deal number flights final standings called classification FAI Sporting Code year qualifying flights spread over three full days meant judges comparing flight Bill Werwage 1000 am Monday flight Bob Hunt 930 am Tuesday still same first round may argue judge supposed compare maneuver interpretation perfect maneuver round 69 fliers split over day-and-a-half just too momentous task expect really objective scores day day carry over high score count finals just ridiculous finals should another contest competitors starting out equal flying either two three official flights Actually plenty time fly three official flights count two highest scores especially since 15 competitors Since Precision Aerobatics luck draw has great deal influence outcome instances unfair penalize finalist using qualifying score may have lower relative competitors similar abilities just because flier poor draw can see no advantage carrying-over qualify ing score Certainly everyone will attempt fly best qualifying insure make finals can no question going easy does seem simple solution lengthy qualification procedure especially since flight circle permitted qualifying would expensive provide judges have two circles qualifying would big problem supply two circlesespecially since very difficult come up World Champion ships sites course would make sense have two qualifying circles split number competitors half add two scores obtained two official flights space money limitations foresee possibility Assuming qualifying circle will utilized same procedure selecting 15 finalists should retained except Section 4214 FAI Sporting Code should changed have finals consist best two scores three official flights Another item World Championships asked team manager protest judges did have individual recorder Anybody has ever judged according FAI rules knows difficult score write down scores maneuver Remember three inside loops 1oop awarded score zero 10 As ajudge have option trying write down score looking next loop waiting until three finished writing down what think remember about much falrer procedure able call out softly recorder scores separate part maneuver Unfortunately recorders 1 12 Model Aviation p4695 ALL pares cisC shape UnIque wing construction elinsinates dIhedral braces wing sheeting DesIgned Iron-on coverings 0 liD THE NEW FIREBALL GLOW PLUGS ARE LEAKPROOF AND BLOWOUT PROOF EVEN FOR THE NEW MONSTER ENGINES BUT THEY ARE STILL THE OLD PRICE OF $1 10 WRITE NOW! SWANSO 1/ PO Box 15 Wayne N 07470