SAM 84 have received some additional information regarding 1984 Society Antique Modelers SAM Champs held Bong WI during last week June have always various special events awards annual gathering faithful year some new exciting events have added Two classes Nos talgia plus Commercial Rubber may familiar Nos talgia brief review its purpose rules may helpful Nostalgia includes models kitted published 1943 1956sort between Old-Timer Stardusters personally feel class has lot offer some super models designed during era glow event has potential taking lot pressure off Glow vs Ignition controversy has heated up meeting discussion among Old-Timer enthusiasts As far models concerned rules similar existing Old-Timer rules regarding changes structure scaling plan up down excep tion scaling rule designs under 250 sq projected wing area may en larged 250 squares bottom line designs model qualifies OldTimer cannot flown Nostalgia Engine rules allow plain-bearing en gines manufactured prior December 31 1962 ball-bearing engines manufactured prior December 31 1956 Exceptions no front-intake Cox engines allowed Any Fox plain-bearing Stunt-type engine cast-on intake may used regardless manufacturing date No parts may sub stituted engine soup-up allowed SAM Champs Nostalgia Event Director Elmer Jordan 2586 5 Brookview Rd Troy OH 45373 has selected Category III rules competition rules allow two models per class weighing 100 oz per cu engine displacement ninesecond engine run two-minute max using fuel fuel system Two separate events will flown 020 080 081 65 engine sizes Write Elmer copy rules Commercial Rubber attempt re vive popular class 1930s qual ify model must have kitted pub lished prior 1943 Rules simple maximum projected wingspan 36 fixed two-wheel landing gear unlimited rubber original construction larger wood sizes extra spars located behind first third wing chord may used some body planking allowed Models restricted weightbut must able rise-off-ground ROG main concern propeller must two-bladed free wheeling made balsa maximum diameter 16 inches rule applies re gardless whether some other type shown plan Speaking plans appropriate designs Zaic yearbooks Further information may obtained Robert Larsh SAM Midwest Vice-President 45 5 Whitcomb Ave Indi anapolis IN 46241 Bob also mentioned special event will held Bong O&R 19 23 side-port engines powering cabin model Gettig ignition have recently touch Martin Gettig Gettig Engineer ing Streamside Place East Spring Continued page 157 Blais Wight Prescott AZ seems quite pleased electric-powered Playboy Senior model weighs 37 oz uses 1OU-mAn battery pack Power appears Leisure LT-50 2A-to-1 reduction drive Construction photo reveals Ni-Cd battery pack 15-amp fuse holder motor-timer installation initially camera timer later changed ubiquitous Austin air-leak unit save weight Martin Gettig L shows oft new Buccaneer B Special Power K&B Torp 29 Ignition Gettig Miniature Ignition System what else Plane covered silkspan finished Testors dope Photo right shows components Gettigs Ignition system Including new metal AAA battery box rechargeable AAA batteries Photos Alice Jordan June 1984 61 flair correctly autorotate safely As far reliability concerned Su perior really holds up blades tend stay track after hardest pullouts would recommend machine anyone looking high-quality general sportcompetition Helicopter careful atten tion should give hours flight before parts start wear As final comment disap pointed aerobatic qualities Superior find ironic machine has done well several contests around world Although Ewald Heim wins Helicopter competitions Europe Star-Ranger common see Superiors finishing close tail second third positions possible am doing something wrong Superioror maybe FAI judges looking something fast-flying acrobats Next month will review Futaba 7GH Helicopter radio discuss van ous features make Helicopter radio what Until next monthBCNU Larry Jolly 5501 W Como Santa Ana CA 92703 RC Giant Scale/Beckman Continued page 53 aircraft lots wings wires Construction basic rugged good selections readily-available spruce pine replacing balsa needed strength arent really beginners models experienced modeler beginner some experienced help will have no trouble some ways building models now will easier first designed days didnt have Giant Scale accessories hinges horns wheels etc avail able now Jerry shows two different airfoils plans semi-symmetrical sport wing obviously scale other undercambered scale air foil latter looks little thick havent researched Im probably wrong sport wing required good flying Most aircraft designs onequarter scale will fly much like real ones have scale outlines airfoils would expect sport wing fly little faster little less floaty big gest advantage sport wing will little easier build has room mounting servos like WW designs wings things two hard beat Im trying find time build Triplane Plans $20 includes shipping plans rolled tube Par tial kits available $130 Pup $140 Triplane Send Behrens Plan Ser vice 3 1-27 Healy Ave Far Rockaway NY 11619 Bryon Fun-Fly Festival Byron Originals hosting Giant Scale Fun-Fly Festival r mmmmmm~rn1 IMode~ Catalog I II II Hundreds unusual tools borrowed Jewelr UGunsmilhing Clock Making professional IModel Making trades NOW AVAiLABLE TO YOU BY MAIL guaranteedI 6II ~thisorsendur couponname address MICROMARK Box 5112 LX ast Main St Clinton NJ 08809 NAME EADDRESS CITY __________________________________________________________ STATE ______ ZIP mJ b third year row annual IMAA Fun-Fly Festival 1984 will held Los Angeles August 16-19 Byron event will same week end three days August 17-19 Anyone attended first two Ida Grove events knows kind facilities provided year Byron nouncement talks about paved runway scale hanger scale tower radar checking flight speed Christen Eagles will hand again last year event provides nice alternative modelers Midwest cannot make trek Los Angeles plan go make motel reservations early few accommodations Ida Grove itself expect up 60 miles away Campers motor homes can probably get space Ida Grove dont crash plane week before Without plane fly part show will just another duespaying spectator behind ropes Bob Beckman 8248 Holly Grove Ct Manassas VA 22110 Props/Hostetler Continued ae 59 length blade Photo 21 shows cross section prop blade sev eral pointsfrom near hub within 3/8 tip sections similar Clark Y airfoil Note back side prop flat leading edge trailing edge point though appears curved finished propeller appearance curve due changing pitch degrees different sta tions about 25 deg near hub 9 deg tip Duplicating other props Directly meas ure diameter blade width thickness hub Set prop its trailing edge flat surface Photo 22 Use two pieces stiff paper card stock equal square 90-deg corners guides measure dimen sions measuring distance between cards various points along prop blade record re sults Transfer information leading edge prop blank A2 B2 sketches Trace profile prop transfer prop blank proceed Step 3 want emphasize con struction information means introduce very interesting area Giant Scale modeling Actually mak ing prop much easier explain ing reading little practice wrn able com plete prop less 45 mm hope enjoy fascinating area modeling much FF Old-Timers/Haught Continued page 61 Mills PA 16875 Martin tells miniature lightweight ignition coils have well-received has encouraged him expand line latest additions metal AAA battery boxes recharga ble AAA batteries firm also has charger AAA batteries pro vides longer battery service money well keeping all-up flying weight minimum system has differ ence between competitive model dog Snuffy Other users Gettig system have reported good results meContinued page 160 June 1984 157 ROM M icro Mark Small Tool Specialists FEA TURES * Fun high speed per formance lands like trainer * Strong balsa con struction * Full scale plans mixer included MAGUS 10 DELTA * 3-years design 10 Engine pan flight testing Send Certified Check MO $2695 Pay Shipping MI reside add 4% tax Magus Model Aircraft 3518 Laurel Burton Michigan 48529 FF Old-Timers/Haught Continued page 157 Tanks lot have received inquiries time-to-time about replacement fuel tanks ignition engines Plastic tanks deteriorate age mined owners converted engine glow plugs plastic used simply compatible alcohol fuels know two sources replacement tanks Air Accessories 3600 Pittman Road Independence MO 64052 Custom Re produced Tanks 29 Stewart Ave Pitts burgh PA 15227 little overlap product lists will probably need contact both suppliers find what need Correction In February 1984 column balsa cuts stated reference annual rings me cuts tangent rings others directly across some randomly cross annular rings cuts called B C re spectively should have read A' C cuts frequently selected random B used casually Im glad someone reads stuff proven person wrote called out errors Turbulators Letters continue trickle subject turbulators wrote about few columns back have received conclude us use main reason strength Some folks will admit crease glide performance refer slight main thing comes through like em should allowed Nuf said appreciate letters Clarence Haught 3226 Honeysuckle Dr Coeur dAlene ID 83814 FF Duration/Meuser Continued aaae 63 slice along razor blade didnt have garnet paper face up did now proud possessor strip garnet paper exactly wide notches want cut Glue edge 2 x 12 glue dry spraypaint new tool day-glow orange youll lose amidst other balsa thing about garnet paper lasts forever balsa once hit upon idea painting saws orange stopped losing last has endured five years Several points worth emphasizing Note length saw 12 should allow long smooth strokes plenty length guiding method cutting strip garnet paper exactly right width seems pretty slick some versions Ive seen strips balsa glued sides 2 x 12 limit depth cut case Commercial Rubber mid-Thirties dozens designs small models built Commercial Rubber rules appeared modeling magazines Such models later classified Class C Fuse lage models event popular event pre-WW II era Such models can compete Old-Timer rubberpower events under SAM Society Antique Modelers rules dis advantage flown competition larger models also eligible Thats idea event specifically smaller models cropped up Southern Cali fornia soon picked up Central Indiana Aeromodelers CIA Competition events such models will held June 10 meet CIA Wright-Patterson AFB SAM Champs held during last week June Bong Field WI Condensed rules follow official rules Design published kitted fore 1943 Max wingspan 36 pro jected Fixed two-wheel landing gear original design Models will ROG Rise Off-Ground Construction must follow original no added turbulator spars geodetic construction few diagonals sheet-balsa fill-in may added fuse lage No limit rubber model weight Prop must two-blade balsa free wheeling regardless prop original Prop diameter may increased 16 must similar props era Landing gear may extended allow ground clearance propeller complete set rules send SASE LU mC address end column lists available plans send SASE Plans RR No 1 Box 450 New Palestine IN 46163 Oldtimer Models PO Box 913 Westminster CA 92683 John Pond send $1 PO Box 3215 San Jose CA 95156 Bert Pond 128 Warren Terrace Longmeadow MA 01106 Designs era clude Gordon Lights 1934 Wakefield Ranger High-Climber De La Maters One-Half Stoners 1937 Stout Trophy winner Comet AYA 5 Pepper Berkeley Buccaneer Zaics 1937 Diamond Contestant Jim Cahills winner 1934 Zaic yearbook Nostalgia Gas events Invented some five years ago nimble mind Ralph Prey Nostalgia bridges gap between OldTimer events modern stuff Eligible model designs period Janu ary 1 1943 through December 31 1956 Eligible engines include period plus few others spirit period primarily loop-scavenged plainbearing engines As event developed regional differences rules event cropped up normal Within past few months differences have ironed out now have unified set rules put together under aegis National Free Flight Society NFFS John Pond putting together list eli gible model designsand hell probably able furnish plans themand Bob Larsh making list eligible engines should available soon rules occupy full page small type too much present will send SASE Ill send copy NFFS members neednt bother January issue Free Flight NFFS Di gest hands printer writing 160 Model Aviation writing advertisers mention read about Model Aviation
Edition: Model Aviation - 1984/06
Page Numbers: 61, 157, 160
SAM 84 have received some additional information regarding 1984 Society Antique Modelers SAM Champs held Bong WI during last week June have always various special events awards annual gathering faithful year some new exciting events have added Two classes Nos talgia plus Commercial Rubber may familiar Nos talgia brief review its purpose rules may helpful Nostalgia includes models kitted published 1943 1956sort between Old-Timer Stardusters personally feel class has lot offer some super models designed during era glow event has potential taking lot pressure off Glow vs Ignition controversy has heated up meeting discussion among Old-Timer enthusiasts As far models concerned rules similar existing Old-Timer rules regarding changes structure scaling plan up down excep tion scaling rule designs under 250 sq projected wing area may en larged 250 squares bottom line designs model qualifies OldTimer cannot flown Nostalgia Engine rules allow plain-bearing en gines manufactured prior December 31 1962 ball-bearing engines manufactured prior December 31 1956 Exceptions no front-intake Cox engines allowed Any Fox plain-bearing Stunt-type engine cast-on intake may used regardless manufacturing date No parts may sub stituted engine soup-up allowed SAM Champs Nostalgia Event Director Elmer Jordan 2586 5 Brookview Rd Troy OH 45373 has selected Category III rules competition rules allow two models per class weighing 100 oz per cu engine displacement ninesecond engine run two-minute max using fuel fuel system Two separate events will flown 020 080 081 65 engine sizes Write Elmer copy rules Commercial Rubber attempt re vive popular class 1930s qual ify model must have kitted pub lished prior 1943 Rules simple maximum projected wingspan 36 fixed two-wheel landing gear unlimited rubber original construction larger wood sizes extra spars located behind first third wing chord may used some body planking allowed Models restricted weightbut must able rise-off-ground ROG main concern propeller must two-bladed free wheeling made balsa maximum diameter 16 inches rule applies re gardless whether some other type shown plan Speaking plans appropriate designs Zaic yearbooks Further information may obtained Robert Larsh SAM Midwest Vice-President 45 5 Whitcomb Ave Indi anapolis IN 46241 Bob also mentioned special event will held Bong O&R 19 23 side-port engines powering cabin model Gettig ignition have recently touch Martin Gettig Gettig Engineer ing Streamside Place East Spring Continued page 157 Blais Wight Prescott AZ seems quite pleased electric-powered Playboy Senior model weighs 37 oz uses 1OU-mAn battery pack Power appears Leisure LT-50 2A-to-1 reduction drive Construction photo reveals Ni-Cd battery pack 15-amp fuse holder motor-timer installation initially camera timer later changed ubiquitous Austin air-leak unit save weight Martin Gettig L shows oft new Buccaneer B Special Power K&B Torp 29 Ignition Gettig Miniature Ignition System what else Plane covered silkspan finished Testors dope Photo right shows components Gettigs Ignition system Including new metal AAA battery box rechargeable AAA batteries Photos Alice Jordan June 1984 61 flair correctly autorotate safely As far reliability concerned Su perior really holds up blades tend stay track after hardest pullouts would recommend machine anyone looking high-quality general sportcompetition Helicopter careful atten tion should give hours flight before parts start wear As final comment disap pointed aerobatic qualities Superior find ironic machine has done well several contests around world Although Ewald Heim wins Helicopter competitions Europe Star-Ranger common see Superiors finishing close tail second third positions possible am doing something wrong Superioror maybe FAI judges looking something fast-flying acrobats Next month will review Futaba 7GH Helicopter radio discuss van ous features make Helicopter radio what Until next monthBCNU Larry Jolly 5501 W Como Santa Ana CA 92703 RC Giant Scale/Beckman Continued page 53 aircraft lots wings wires Construction basic rugged good selections readily-available spruce pine replacing balsa needed strength arent really beginners models experienced modeler beginner some experienced help will have no trouble some ways building models now will easier first designed days didnt have Giant Scale accessories hinges horns wheels etc avail able now Jerry shows two different airfoils plans semi-symmetrical sport wing obviously scale other undercambered scale air foil latter looks little thick havent researched Im probably wrong sport wing required good flying Most aircraft designs onequarter scale will fly much like real ones have scale outlines airfoils would expect sport wing fly little faster little less floaty big gest advantage sport wing will little easier build has room mounting servos like WW designs wings things two hard beat Im trying find time build Triplane Plans $20 includes shipping plans rolled tube Par tial kits available $130 Pup $140 Triplane Send Behrens Plan Ser vice 3 1-27 Healy Ave Far Rockaway NY 11619 Bryon Fun-Fly Festival Byron Originals hosting Giant Scale Fun-Fly Festival r mmmmmm~rn1 IMode~ Catalog I II II Hundreds unusual tools borrowed Jewelr UGunsmilhing Clock Making professional IModel Making trades NOW AVAiLABLE TO YOU BY MAIL guaranteedI 6II ~thisorsendur couponname address MICROMARK Box 5112 LX ast Main St Clinton NJ 08809 NAME EADDRESS CITY __________________________________________________________ STATE ______ ZIP mJ b third year row annual IMAA Fun-Fly Festival 1984 will held Los Angeles August 16-19 Byron event will same week end three days August 17-19 Anyone attended first two Ida Grove events knows kind facilities provided year Byron nouncement talks about paved runway scale hanger scale tower radar checking flight speed Christen Eagles will hand again last year event provides nice alternative modelers Midwest cannot make trek Los Angeles plan go make motel reservations early few accommodations Ida Grove itself expect up 60 miles away Campers motor homes can probably get space Ida Grove dont crash plane week before Without plane fly part show will just another duespaying spectator behind ropes Bob Beckman 8248 Holly Grove Ct Manassas VA 22110 Props/Hostetler Continued ae 59 length blade Photo 21 shows cross section prop blade sev eral pointsfrom near hub within 3/8 tip sections similar Clark Y airfoil Note back side prop flat leading edge trailing edge point though appears curved finished propeller appearance curve due changing pitch degrees different sta tions about 25 deg near hub 9 deg tip Duplicating other props Directly meas ure diameter blade width thickness hub Set prop its trailing edge flat surface Photo 22 Use two pieces stiff paper card stock equal square 90-deg corners guides measure dimen sions measuring distance between cards various points along prop blade record re sults Transfer information leading edge prop blank A2 B2 sketches Trace profile prop transfer prop blank proceed Step 3 want emphasize con struction information means introduce very interesting area Giant Scale modeling Actually mak ing prop much easier explain ing reading little practice wrn able com plete prop less 45 mm hope enjoy fascinating area modeling much FF Old-Timers/Haught Continued page 61 Mills PA 16875 Martin tells miniature lightweight ignition coils have well-received has encouraged him expand line latest additions metal AAA battery boxes recharga ble AAA batteries firm also has charger AAA batteries pro vides longer battery service money well keeping all-up flying weight minimum system has differ ence between competitive model dog Snuffy Other users Gettig system have reported good results meContinued page 160 June 1984 157 ROM M icro Mark Small Tool Specialists FEA TURES * Fun high speed per formance lands like trainer * Strong balsa con struction * Full scale plans mixer included MAGUS 10 DELTA * 3-years design 10 Engine pan flight testing Send Certified Check MO $2695 Pay Shipping MI reside add 4% tax Magus Model Aircraft 3518 Laurel Burton Michigan 48529 FF Old-Timers/Haught Continued page 157 Tanks lot have received inquiries time-to-time about replacement fuel tanks ignition engines Plastic tanks deteriorate age mined owners converted engine glow plugs plastic used simply compatible alcohol fuels know two sources replacement tanks Air Accessories 3600 Pittman Road Independence MO 64052 Custom Re produced Tanks 29 Stewart Ave Pitts burgh PA 15227 little overlap product lists will probably need contact both suppliers find what need Correction In February 1984 column balsa cuts stated reference annual rings me cuts tangent rings others directly across some randomly cross annular rings cuts called B C re spectively should have read A' C cuts frequently selected random B used casually Im glad someone reads stuff proven person wrote called out errors Turbulators Letters continue trickle subject turbulators wrote about few columns back have received conclude us use main reason strength Some folks will admit crease glide performance refer slight main thing comes through like em should allowed Nuf said appreciate letters Clarence Haught 3226 Honeysuckle Dr Coeur dAlene ID 83814 FF Duration/Meuser Continued aaae 63 slice along razor blade didnt have garnet paper face up did now proud possessor strip garnet paper exactly wide notches want cut Glue edge 2 x 12 glue dry spraypaint new tool day-glow orange youll lose amidst other balsa thing about garnet paper lasts forever balsa once hit upon idea painting saws orange stopped losing last has endured five years Several points worth emphasizing Note length saw 12 should allow long smooth strokes plenty length guiding method cutting strip garnet paper exactly right width seems pretty slick some versions Ive seen strips balsa glued sides 2 x 12 limit depth cut case Commercial Rubber mid-Thirties dozens designs small models built Commercial Rubber rules appeared modeling magazines Such models later classified Class C Fuse lage models event popular event pre-WW II era Such models can compete Old-Timer rubberpower events under SAM Society Antique Modelers rules dis advantage flown competition larger models also eligible Thats idea event specifically smaller models cropped up Southern Cali fornia soon picked up Central Indiana Aeromodelers CIA Competition events such models will held June 10 meet CIA Wright-Patterson AFB SAM Champs held during last week June Bong Field WI Condensed rules follow official rules Design published kitted fore 1943 Max wingspan 36 pro jected Fixed two-wheel landing gear original design Models will ROG Rise Off-Ground Construction must follow original no added turbulator spars geodetic construction few diagonals sheet-balsa fill-in may added fuse lage No limit rubber model weight Prop must two-blade balsa free wheeling regardless prop original Prop diameter may increased 16 must similar props era Landing gear may extended allow ground clearance propeller complete set rules send SASE LU mC address end column lists available plans send SASE Plans RR No 1 Box 450 New Palestine IN 46163 Oldtimer Models PO Box 913 Westminster CA 92683 John Pond send $1 PO Box 3215 San Jose CA 95156 Bert Pond 128 Warren Terrace Longmeadow MA 01106 Designs era clude Gordon Lights 1934 Wakefield Ranger High-Climber De La Maters One-Half Stoners 1937 Stout Trophy winner Comet AYA 5 Pepper Berkeley Buccaneer Zaics 1937 Diamond Contestant Jim Cahills winner 1934 Zaic yearbook Nostalgia Gas events Invented some five years ago nimble mind Ralph Prey Nostalgia bridges gap between OldTimer events modern stuff Eligible model designs period Janu ary 1 1943 through December 31 1956 Eligible engines include period plus few others spirit period primarily loop-scavenged plainbearing engines As event developed regional differences rules event cropped up normal Within past few months differences have ironed out now have unified set rules put together under aegis National Free Flight Society NFFS John Pond putting together list eli gible model designsand hell probably able furnish plans themand Bob Larsh making list eligible engines should available soon rules occupy full page small type too much present will send SASE Ill send copy NFFS members neednt bother January issue Free Flight NFFS Di gest hands printer writing 160 Model Aviation writing advertisers mention read about Model Aviation
Edition: Model Aviation - 1984/06
Page Numbers: 61, 157, 160
SAM 84 have received some additional information regarding 1984 Society Antique Modelers SAM Champs held Bong WI during last week June have always various special events awards annual gathering faithful year some new exciting events have added Two classes Nos talgia plus Commercial Rubber may familiar Nos talgia brief review its purpose rules may helpful Nostalgia includes models kitted published 1943 1956sort between Old-Timer Stardusters personally feel class has lot offer some super models designed during era glow event has potential taking lot pressure off Glow vs Ignition controversy has heated up meeting discussion among Old-Timer enthusiasts As far models concerned rules similar existing Old-Timer rules regarding changes structure scaling plan up down excep tion scaling rule designs under 250 sq projected wing area may en larged 250 squares bottom line designs model qualifies OldTimer cannot flown Nostalgia Engine rules allow plain-bearing en gines manufactured prior December 31 1962 ball-bearing engines manufactured prior December 31 1956 Exceptions no front-intake Cox engines allowed Any Fox plain-bearing Stunt-type engine cast-on intake may used regardless manufacturing date No parts may sub stituted engine soup-up allowed SAM Champs Nostalgia Event Director Elmer Jordan 2586 5 Brookview Rd Troy OH 45373 has selected Category III rules competition rules allow two models per class weighing 100 oz per cu engine displacement ninesecond engine run two-minute max using fuel fuel system Two separate events will flown 020 080 081 65 engine sizes Write Elmer copy rules Commercial Rubber attempt re vive popular class 1930s qual ify model must have kitted pub lished prior 1943 Rules simple maximum projected wingspan 36 fixed two-wheel landing gear unlimited rubber original construction larger wood sizes extra spars located behind first third wing chord may used some body planking allowed Models restricted weightbut must able rise-off-ground ROG main concern propeller must two-bladed free wheeling made balsa maximum diameter 16 inches rule applies re gardless whether some other type shown plan Speaking plans appropriate designs Zaic yearbooks Further information may obtained Robert Larsh SAM Midwest Vice-President 45 5 Whitcomb Ave Indi anapolis IN 46241 Bob also mentioned special event will held Bong O&R 19 23 side-port engines powering cabin model Gettig ignition have recently touch Martin Gettig Gettig Engineer ing Streamside Place East Spring Continued page 157 Blais Wight Prescott AZ seems quite pleased electric-powered Playboy Senior model weighs 37 oz uses 1OU-mAn battery pack Power appears Leisure LT-50 2A-to-1 reduction drive Construction photo reveals Ni-Cd battery pack 15-amp fuse holder motor-timer installation initially camera timer later changed ubiquitous Austin air-leak unit save weight Martin Gettig L shows oft new Buccaneer B Special Power K&B Torp 29 Ignition Gettig Miniature Ignition System what else Plane covered silkspan finished Testors dope Photo right shows components Gettigs Ignition system Including new metal AAA battery box rechargeable AAA batteries Photos Alice Jordan June 1984 61 flair correctly autorotate safely As far reliability concerned Su perior really holds up blades tend stay track after hardest pullouts would recommend machine anyone looking high-quality general sportcompetition Helicopter careful atten tion should give hours flight before parts start wear As final comment disap pointed aerobatic qualities Superior find ironic machine has done well several contests around world Although Ewald Heim wins Helicopter competitions Europe Star-Ranger common see Superiors finishing close tail second third positions possible am doing something wrong Superioror maybe FAI judges looking something fast-flying acrobats Next month will review Futaba 7GH Helicopter radio discuss van ous features make Helicopter radio what Until next monthBCNU Larry Jolly 5501 W Como Santa Ana CA 92703 RC Giant Scale/Beckman Continued page 53 aircraft lots wings wires Construction basic rugged good selections readily-available spruce pine replacing balsa needed strength arent really beginners models experienced modeler beginner some experienced help will have no trouble some ways building models now will easier first designed days didnt have Giant Scale accessories hinges horns wheels etc avail able now Jerry shows two different airfoils plans semi-symmetrical sport wing obviously scale other undercambered scale air foil latter looks little thick havent researched Im probably wrong sport wing required good flying Most aircraft designs onequarter scale will fly much like real ones have scale outlines airfoils would expect sport wing fly little faster little less floaty big gest advantage sport wing will little easier build has room mounting servos like WW designs wings things two hard beat Im trying find time build Triplane Plans $20 includes shipping plans rolled tube Par tial kits available $130 Pup $140 Triplane Send Behrens Plan Ser vice 3 1-27 Healy Ave Far Rockaway NY 11619 Bryon Fun-Fly Festival Byron Originals hosting Giant Scale Fun-Fly Festival r mmmmmm~rn1 IMode~ Catalog I II II Hundreds unusual tools borrowed Jewelr UGunsmilhing Clock Making professional IModel Making trades NOW AVAiLABLE TO YOU BY MAIL guaranteedI 6II ~thisorsendur couponname address MICROMARK Box 5112 LX ast Main St Clinton NJ 08809 NAME EADDRESS CITY __________________________________________________________ STATE ______ ZIP mJ b third year row annual IMAA Fun-Fly Festival 1984 will held Los Angeles August 16-19 Byron event will same week end three days August 17-19 Anyone attended first two Ida Grove events knows kind facilities provided year Byron nouncement talks about paved runway scale hanger scale tower radar checking flight speed Christen Eagles will hand again last year event provides nice alternative modelers Midwest cannot make trek Los Angeles plan go make motel reservations early few accommodations Ida Grove itself expect up 60 miles away Campers motor homes can probably get space Ida Grove dont crash plane week before Without plane fly part show will just another duespaying spectator behind ropes Bob Beckman 8248 Holly Grove Ct Manassas VA 22110 Props/Hostetler Continued ae 59 length blade Photo 21 shows cross section prop blade sev eral pointsfrom near hub within 3/8 tip sections similar Clark Y airfoil Note back side prop flat leading edge trailing edge point though appears curved finished propeller appearance curve due changing pitch degrees different sta tions about 25 deg near hub 9 deg tip Duplicating other props Directly meas ure diameter blade width thickness hub Set prop its trailing edge flat surface Photo 22 Use two pieces stiff paper card stock equal square 90-deg corners guides measure dimen sions measuring distance between cards various points along prop blade record re sults Transfer information leading edge prop blank A2 B2 sketches Trace profile prop transfer prop blank proceed Step 3 want emphasize con struction information means introduce very interesting area Giant Scale modeling Actually mak ing prop much easier explain ing reading little practice wrn able com plete prop less 45 mm hope enjoy fascinating area modeling much FF Old-Timers/Haught Continued page 61 Mills PA 16875 Martin tells miniature lightweight ignition coils have well-received has encouraged him expand line latest additions metal AAA battery boxes recharga ble AAA batteries firm also has charger AAA batteries pro vides longer battery service money well keeping all-up flying weight minimum system has differ ence between competitive model dog Snuffy Other users Gettig system have reported good results meContinued page 160 June 1984 157 ROM M icro Mark Small Tool Specialists FEA TURES * Fun high speed per formance lands like trainer * Strong balsa con struction * Full scale plans mixer included MAGUS 10 DELTA * 3-years design 10 Engine pan flight testing Send Certified Check MO $2695 Pay Shipping MI reside add 4% tax Magus Model Aircraft 3518 Laurel Burton Michigan 48529 FF Old-Timers/Haught Continued page 157 Tanks lot have received inquiries time-to-time about replacement fuel tanks ignition engines Plastic tanks deteriorate age mined owners converted engine glow plugs plastic used simply compatible alcohol fuels know two sources replacement tanks Air Accessories 3600 Pittman Road Independence MO 64052 Custom Re produced Tanks 29 Stewart Ave Pitts burgh PA 15227 little overlap product lists will probably need contact both suppliers find what need Correction In February 1984 column balsa cuts stated reference annual rings me cuts tangent rings others directly across some randomly cross annular rings cuts called B C re spectively should have read A' C cuts frequently selected random B used casually Im glad someone reads stuff proven person wrote called out errors Turbulators Letters continue trickle subject turbulators wrote about few columns back have received conclude us use main reason strength Some folks will admit crease glide performance refer slight main thing comes through like em should allowed Nuf said appreciate letters Clarence Haught 3226 Honeysuckle Dr Coeur dAlene ID 83814 FF Duration/Meuser Continued aaae 63 slice along razor blade didnt have garnet paper face up did now proud possessor strip garnet paper exactly wide notches want cut Glue edge 2 x 12 glue dry spraypaint new tool day-glow orange youll lose amidst other balsa thing about garnet paper lasts forever balsa once hit upon idea painting saws orange stopped losing last has endured five years Several points worth emphasizing Note length saw 12 should allow long smooth strokes plenty length guiding method cutting strip garnet paper exactly right width seems pretty slick some versions Ive seen strips balsa glued sides 2 x 12 limit depth cut case Commercial Rubber mid-Thirties dozens designs small models built Commercial Rubber rules appeared modeling magazines Such models later classified Class C Fuse lage models event popular event pre-WW II era Such models can compete Old-Timer rubberpower events under SAM Society Antique Modelers rules dis advantage flown competition larger models also eligible Thats idea event specifically smaller models cropped up Southern Cali fornia soon picked up Central Indiana Aeromodelers CIA Competition events such models will held June 10 meet CIA Wright-Patterson AFB SAM Champs held during last week June Bong Field WI Condensed rules follow official rules Design published kitted fore 1943 Max wingspan 36 pro jected Fixed two-wheel landing gear original design Models will ROG Rise Off-Ground Construction must follow original no added turbulator spars geodetic construction few diagonals sheet-balsa fill-in may added fuse lage No limit rubber model weight Prop must two-blade balsa free wheeling regardless prop original Prop diameter may increased 16 must similar props era Landing gear may extended allow ground clearance propeller complete set rules send SASE LU mC address end column lists available plans send SASE Plans RR No 1 Box 450 New Palestine IN 46163 Oldtimer Models PO Box 913 Westminster CA 92683 John Pond send $1 PO Box 3215 San Jose CA 95156 Bert Pond 128 Warren Terrace Longmeadow MA 01106 Designs era clude Gordon Lights 1934 Wakefield Ranger High-Climber De La Maters One-Half Stoners 1937 Stout Trophy winner Comet AYA 5 Pepper Berkeley Buccaneer Zaics 1937 Diamond Contestant Jim Cahills winner 1934 Zaic yearbook Nostalgia Gas events Invented some five years ago nimble mind Ralph Prey Nostalgia bridges gap between OldTimer events modern stuff Eligible model designs period Janu ary 1 1943 through December 31 1956 Eligible engines include period plus few others spirit period primarily loop-scavenged plainbearing engines As event developed regional differences rules event cropped up normal Within past few months differences have ironed out now have unified set rules put together under aegis National Free Flight Society NFFS John Pond putting together list eli gible model designsand hell probably able furnish plans themand Bob Larsh making list eligible engines should available soon rules occupy full page small type too much present will send SASE Ill send copy NFFS members neednt bother January issue Free Flight NFFS Di gest hands printer writing 160 Model Aviation writing advertisers mention read about Model Aviation