Radio Control Old-Timers Dee B Mathews OLD-TIMER month Mercury IV is Old-Timer SAM definition certainly exemplifies looks like real air plane school Free Flight design Bob Wischer describes photo model beautiful plane Old Warden 1978 English chapter SAM SAME get has broader era-base encourage its members build fly beautiful examples model designers art own magazines post- 1942 era replete equally appealing models plan feature next column Since Old Warden social event opposed contest lovely works such Mercury IV can flown low-key settingto very considerable delight present flight photo illustrates phenomenon rather well Old Warden oriented OHHs AHHs Gotcha rather large model challenging construc tion techniques Mercury IV projects can reward its builder years yeoman service fuselage fully planked over box-and-former frame smoothly planked Gottingen-sectioned wing provides good thermal potential moments provide exceptional stability Plans still available extensive Aero modeller list numerous other Free Flight sport Scale designs eminently suited conversion RC-assist available through Dave Shiptons Hobby Hideaway Delavan IL 61734 Dave well remembered man Scale cage many Nationals Gold Seal engines Irwin Oblsson authorized reproductions will utilize old pro duction dies tooling Advanced orders will accepted sequence received interested should place $50 deposit Herbs Model Motors Box 61 Forksville PA 18616 First come first served Herb WahI responsible Hurleman engines have shown previous columns well beautiful Brown Jr reproductions now out production readers familiar Ohlsson motors some explanations may order Gold Seal O&Rs second production engine should confused later onepiece-cased O&R 60 Gold Seal has displacement of56 cu multi-piece cylinder bolted onto crankcase right side cylinder removable section over intake port Although distinctively Ohlsson design very obviously same postwar 60 Gold Seal name came about result first-place finish design section industrial exhibits 1937 California State Fair entered judged cameras typewriters clocks etc presented Gold Seal State California no connection model contest portion same fair INCHES Interestingly configuration shared O&R engines postwar years first introduced 1938on 23 engine Gold Seal remained O&Rs large-bore design until replaced Custom 60 March 1940 turn replaced slightly different 60 Special October 1941 Special configuration its ball-thrust crank shaft unit produced tens thousands postwar years com monly found today Draw Pahdnah fuel Gasoline oil fuel used both Old-Timer ignition chainsaw motors poses novel problem its transfer can model stuff will totally destroy diaphragm conventional model fuel pump within minutes same problem also common diesel fuels used model aircraft need black neoprene fuel lines has mentioned several times fuel transfer system compatible fossil fuels has remained puzzle No Dave Brown Products now has Six Shooter pump set up specifically use gasoline diesel fuels diaphragm pump length large-diameter black neoprene tubing see activated rotating handle squeezes tube along its length part pump makes contact ____________ STAB HAS LIFTING SECTION 1___ / MERCURY1_ BYMICK SMITHQ coNcouRs DELEGANcE WINNER AEROMODELLER PLAN PET5O4 PUBLISHED MARCH 1953 FULL SiZES SWUS COURTESY HOBBY HIDEAWAY DATA WINGSPAN 96WEIGHT 80 GOS WahI BangOR Herb Wahl has announcedWING AREA 1050 SQ INCHES intention produce limited run OhlssonPOWER 10-16CC L60-9H CO INSIGOETYINGEN 497 SECTION 42 Model Aviation Englands Old Warden Rally low-pressure fun-type thing Just look idyllic scene right Ron Castles Mercury IV gliding Makes want run right out fly awhile doesnt Photo left good look Rons modelMerco 61 glow 3-ch beautiful silk nylon finish Note rudder elevator hinge lines 1978 photos Bob Wischer fuel tube itself moving part handle assembly Dave tells us have soaked section tube gasoline days no swelling other changes Satisfied result soaked scrap section tubing Dave sent us can Davis Diesel fuel six days no observable chemical physical alterations other fact smells sort odd So Old-Timer ignition fliers Quarter Scal ers diesel nuts can now discard oil cans disposable horse syringes Six Shooter can pump 06 oz fuel per revolutioncertainly faster filling 4-oz tank 50cc syringe Available well-stocked dealers Six Shooter tested recommended writer Whats name certainly aware name Mercury commonly associated Ben Shereshaws design kitted Scien tific However name very popular limited single model design Mercury also name FF pylon model Comet rubber designs Peerless Guillow engines Avion Davies Charlton line outboard motors course automobile Ford repetition same name numerous designs rather common Check out John Pond catalog such names Powerhouse Interceptor neo what past installments column have endeavored add some small helps making transition illogical British system measure metric little easier Weve mentioned rule sixes 100mm cigarette package Now weve stumbled another neologism aid conversion ounce equals 28 grams roughly An easy way recall file memory bank ounces grams year before stock market crash 1929 new readers rule sixes says cubic inches divided 06 equals cubic centimeters Cubic centimeters multiplied 06 equals cubic inches easily recalled remembering 10cc engine also 60 cu cigarette neogism involves fact lOOmns pack also close four inches length Therefore 25mm close inch Keep cards letters coming receive fairly steady flow letters always appreciate comments questions make effort answer letter format column doesnt fit question-andanswer style letters helpful gauging what should incorporated column ask continue flow also always need black white photos frequently asked question keep color paint iron-on coverings Frankly MonoKote used polyurethane paints Poly-U Perfect K&B Super Poxy stick beautifully suspect Hobbypoxy will too havent tried yet Conversely have successful keeping paint softer iron-ons Clear polyurethane varnish also very helpful avoiding fuel creep along seams MonoContinued page 119 wheel hubs wheel pairs matched far firmness quality balance 1 75 T RWheels1-3/4$300Pair 2 00 T RWheels2$325Pair 2 25 T R SWheels2-1 /4$350Pair 2 50 T R SWheels2-1/2$375Pair 2 75 T R SWheels2-3/4$400Pair 3 00 T R SWheels3$425Pair 325 T RWheels3-1/4$450Par 3 50 T RWheels3-1 /2$475Pair Shown actual size new hefty ball link perfect 1/4 scale application Featuring strong 440 threaded steel ball new heavy duty nylon socket Also excellent R/G car steering linkage CAT No 259 $125 iVec DU-BRO HEAVY DUTY HINGES /000 Removable Cotter Pin 000 Shown actual size 0 0 0strong nylon hinges built take heavy loads Dimen sions 3/4 wide x 1-3/8 long x 040 thick using 3/64 diameter cotter pin maximum convenience strength Ideal 1/4 scale models 15 Per Pkg375No257 05L Pf0 0 DU DU-BRO PRODUCTS INCORPORATED 480 BONNER ROAD WAUCONDA ILLINOIS September 1981 43 collection Herb Wahis products 3 Hurleman singles Hurleman twin Brown Jr will soon producing Ohisson Gold Seal reproduction Read about article WITH NEW ALUMINUM FINISH HUBS These low bounce shock absorbing wheels feature new nylon metalic finish NEW HEAVY DUTY BALL LINK THE F1A1 FILTER CAT NO $175 NOTHING GETS PAST THE FINAL FILTER Kote varnish does need hobby item building supply paint store products will suffice Another frequently raised query involves wheel tracking Old-Timers relatively large dihedral angle average Old-Timer can contribute tendency dig wing tip landing particularly problem crosswind solution lies setting wheels some toe front edge wheels should point toward mid-line model Set manner model tends move toward high wing tip just wheel touches terra firma reader may have think through bit look models does work new SAM supplier list Jim Adams editor SAM Speaks newsletter Society Antique Modelers compiling updated list suppliers hardware kits engines plans etc germane area hobby will supplied SAM members soon business should advise him products ASAP 2538 Spurgeon St Santa Ana CA 92706 reader member SAM let advent new list motivator go ahead join Send application blanks appear time time MA Tim Banaszak 1947 Superior Ave Whiting IN 46394 Whoops delightful elderly patient recently remarked As get older part uuRE AIRCRAFT North Orange Blossom Truil Orlando$ FL 32804 w 3O5/42215$t works better better forgetter know shes right July copy implied Cavalier Twin highly novel 1941 forgotten Frank Ehlings twin illustrated 1938 Zaic Yearbook Petrides Dolfin Frank Ehling AMAs technical director de signed Free Flight models author yet Among twin Elf-powered model featuring plug-in outboard wing panels twin fins plug-in tail section interested can look up Zaic Yearbook Incidentally sorts great reading available various Yearbooks including newly-reproduced 1934 issue abiding interest history hobby must place Frank Zaics Yearbooks top list reference works obscure perhaps certainly beyond recall Super Dolfin note odd spelling Thracy Petrides now note odd first name Although Petrides designs published such Privateer PB-I Dolphin Super Dolfin sold plan RC Specialist operation NYU address model resembles fat round-fuselaged Dolphin twin engines placed either side nose winglets span 102-in fuselage 6-ft long photo ad Super Dolfin found page 60 ModelAirplane News May 1941 Look itup sometime really different Dee B Mathews 506 South Walnut Greensburg KS 67054 IWhen writing advertmsrs mention reed about thent Model Aviation B obbV B o .hebt r r OLD TIMER KITS Full Partial Kits P & W Semi-Kilo--Rib Tip Former Kilo 1941 Playboy Jr 14 Span Plan Extra $1450 Plan--$2 50 companion Stripwood Kit--S13 12 combination Playboy Jr tall above itema-$20 00 1041 Playboy Sr 00 span Plan Extra $1021 Plan-$300 companion Stripwood Kit--$2030 Combination Playboy Sr tall three itema-S45 00 1030 Zipper comet 54 Span Plan Inol $3300 Companion Strlpwood Kit--$1572 Combination Zipper Roth above itema--$45OO 1937 Dallaire sportater 100 Span Plan EX $2600 Plan--$500 companion Stripwood Kit-$3000 combination Dallaire Kit tall three ltema$5000 1930 Powerhouse 04 Span Plan Extra $2100 Plan--$400 companion Strlpwood Kit--$1770 combination Powerhouse Kit 3 above $3900 Other combinations available 1930 Ruccaneer$40 00 1938 Clipper MK $3000 1039 Mercury $5500 1935 Miss America $5900 1040 Ranger $2700 1040 sailplane $7000 1040 So Long $2000 1030 Trenton Terror $3000 Korda Wake $1600 MIDWAY MODEL COMPANY Partial Kits 1036 Flying Quaker 04 Span Plan IncI $2110 Companion Stripwood Kit--$3140 Combination Flying Quaker Kit Roth items54900 1937 Quaker Flash 67 Span Plan md $1750 Companion Stripwood Kit--$2345 Combination Quaker Flash Kit Roth items $3000 1937 Long cabin 70 Span Plan Extra $1500 Plan--SI 00 Companion Stripwood Kit--52406 Combination Long Cabin Kit three--$40OO MIDWAY MODEL COMPANY Pull Kits 1039 Air Traila Sportater 50 1015 K/C $3506 1930 Powerhouse 50 Span 1015 a/C $3506 1040 Ruccard Rombahell 30 Span 020 $1105 1040 Playboy Sr 38 Span 020 engines $1291 1935 Miss America 30 Span 020 engines $1295 1940 Clipper MKII 30 Span 020 engines $1495 1040 New Ruler 31 Span 020 engines $1395 1940 Mercury ScIentifics 36 Span 020 $1395 1941 Reouest 30 Span 020 engines $1205 SHIPPING AND HANDLING 50 Page CATALOGUE Up $000 add $110 $100 PP IA copy will $001 $2000 add $225 sent free upon $2001 $l500 add $300 request orderl $11101 $7000 add $310 a F am over $7000 add $400 PO Box 3004 CA Addressees add 0% Tax Seal Beach Ca 00740 Send MOVisaAlC 0* Eap 17101 094-02231-Best CK COD--Exact Chg mornings recorder-- 51 10 Hdl cash Onlyl activates rings September1981 119 Show Features wwee 25 S 0 S 0 POflS StOCK World standard metrics Se dr order direct front deoped 8$ presents th# new U USA Inc RC Old-Timers/Mathews Continued page 43
Edition: Model Aviation - 1981/09
Page Numbers: 42, 43, 119
Radio Control Old-Timers Dee B Mathews OLD-TIMER month Mercury IV is Old-Timer SAM definition certainly exemplifies looks like real air plane school Free Flight design Bob Wischer describes photo model beautiful plane Old Warden 1978 English chapter SAM SAME get has broader era-base encourage its members build fly beautiful examples model designers art own magazines post- 1942 era replete equally appealing models plan feature next column Since Old Warden social event opposed contest lovely works such Mercury IV can flown low-key settingto very considerable delight present flight photo illustrates phenomenon rather well Old Warden oriented OHHs AHHs Gotcha rather large model challenging construc tion techniques Mercury IV projects can reward its builder years yeoman service fuselage fully planked over box-and-former frame smoothly planked Gottingen-sectioned wing provides good thermal potential moments provide exceptional stability Plans still available extensive Aero modeller list numerous other Free Flight sport Scale designs eminently suited conversion RC-assist available through Dave Shiptons Hobby Hideaway Delavan IL 61734 Dave well remembered man Scale cage many Nationals Gold Seal engines Irwin Oblsson authorized reproductions will utilize old pro duction dies tooling Advanced orders will accepted sequence received interested should place $50 deposit Herbs Model Motors Box 61 Forksville PA 18616 First come first served Herb WahI responsible Hurleman engines have shown previous columns well beautiful Brown Jr reproductions now out production readers familiar Ohlsson motors some explanations may order Gold Seal O&Rs second production engine should confused later onepiece-cased O&R 60 Gold Seal has displacement of56 cu multi-piece cylinder bolted onto crankcase right side cylinder removable section over intake port Although distinctively Ohlsson design very obviously same postwar 60 Gold Seal name came about result first-place finish design section industrial exhibits 1937 California State Fair entered judged cameras typewriters clocks etc presented Gold Seal State California no connection model contest portion same fair INCHES Interestingly configuration shared O&R engines postwar years first introduced 1938on 23 engine Gold Seal remained O&Rs large-bore design until replaced Custom 60 March 1940 turn replaced slightly different 60 Special October 1941 Special configuration its ball-thrust crank shaft unit produced tens thousands postwar years com monly found today Draw Pahdnah fuel Gasoline oil fuel used both Old-Timer ignition chainsaw motors poses novel problem its transfer can model stuff will totally destroy diaphragm conventional model fuel pump within minutes same problem also common diesel fuels used model aircraft need black neoprene fuel lines has mentioned several times fuel transfer system compatible fossil fuels has remained puzzle No Dave Brown Products now has Six Shooter pump set up specifically use gasoline diesel fuels diaphragm pump length large-diameter black neoprene tubing see activated rotating handle squeezes tube along its length part pump makes contact ____________ STAB HAS LIFTING SECTION 1___ / MERCURY1_ BYMICK SMITHQ coNcouRs DELEGANcE WINNER AEROMODELLER PLAN PET5O4 PUBLISHED MARCH 1953 FULL SiZES SWUS COURTESY HOBBY HIDEAWAY DATA WINGSPAN 96WEIGHT 80 GOS WahI BangOR Herb Wahl has announcedWING AREA 1050 SQ INCHES intention produce limited run OhlssonPOWER 10-16CC L60-9H CO INSIGOETYINGEN 497 SECTION 42 Model Aviation Englands Old Warden Rally low-pressure fun-type thing Just look idyllic scene right Ron Castles Mercury IV gliding Makes want run right out fly awhile doesnt Photo left good look Rons modelMerco 61 glow 3-ch beautiful silk nylon finish Note rudder elevator hinge lines 1978 photos Bob Wischer fuel tube itself moving part handle assembly Dave tells us have soaked section tube gasoline days no swelling other changes Satisfied result soaked scrap section tubing Dave sent us can Davis Diesel fuel six days no observable chemical physical alterations other fact smells sort odd So Old-Timer ignition fliers Quarter Scal ers diesel nuts can now discard oil cans disposable horse syringes Six Shooter can pump 06 oz fuel per revolutioncertainly faster filling 4-oz tank 50cc syringe Available well-stocked dealers Six Shooter tested recommended writer Whats name certainly aware name Mercury commonly associated Ben Shereshaws design kitted Scien tific However name very popular limited single model design Mercury also name FF pylon model Comet rubber designs Peerless Guillow engines Avion Davies Charlton line outboard motors course automobile Ford repetition same name numerous designs rather common Check out John Pond catalog such names Powerhouse Interceptor neo what past installments column have endeavored add some small helps making transition illogical British system measure metric little easier Weve mentioned rule sixes 100mm cigarette package Now weve stumbled another neologism aid conversion ounce equals 28 grams roughly An easy way recall file memory bank ounces grams year before stock market crash 1929 new readers rule sixes says cubic inches divided 06 equals cubic centimeters Cubic centimeters multiplied 06 equals cubic inches easily recalled remembering 10cc engine also 60 cu cigarette neogism involves fact lOOmns pack also close four inches length Therefore 25mm close inch Keep cards letters coming receive fairly steady flow letters always appreciate comments questions make effort answer letter format column doesnt fit question-andanswer style letters helpful gauging what should incorporated column ask continue flow also always need black white photos frequently asked question keep color paint iron-on coverings Frankly MonoKote used polyurethane paints Poly-U Perfect K&B Super Poxy stick beautifully suspect Hobbypoxy will too havent tried yet Conversely have successful keeping paint softer iron-ons Clear polyurethane varnish also very helpful avoiding fuel creep along seams MonoContinued page 119 wheel hubs wheel pairs matched far firmness quality balance 1 75 T RWheels1-3/4$300Pair 2 00 T RWheels2$325Pair 2 25 T R SWheels2-1 /4$350Pair 2 50 T R SWheels2-1/2$375Pair 2 75 T R SWheels2-3/4$400Pair 3 00 T R SWheels3$425Pair 325 T RWheels3-1/4$450Par 3 50 T RWheels3-1 /2$475Pair Shown actual size new hefty ball link perfect 1/4 scale application Featuring strong 440 threaded steel ball new heavy duty nylon socket Also excellent R/G car steering linkage CAT No 259 $125 iVec DU-BRO HEAVY DUTY HINGES /000 Removable Cotter Pin 000 Shown actual size 0 0 0strong nylon hinges built take heavy loads Dimen sions 3/4 wide x 1-3/8 long x 040 thick using 3/64 diameter cotter pin maximum convenience strength Ideal 1/4 scale models 15 Per Pkg375No257 05L Pf0 0 DU DU-BRO PRODUCTS INCORPORATED 480 BONNER ROAD WAUCONDA ILLINOIS September 1981 43 collection Herb Wahis products 3 Hurleman singles Hurleman twin Brown Jr will soon producing Ohisson Gold Seal reproduction Read about article WITH NEW ALUMINUM FINISH HUBS These low bounce shock absorbing wheels feature new nylon metalic finish NEW HEAVY DUTY BALL LINK THE F1A1 FILTER CAT NO $175 NOTHING GETS PAST THE FINAL FILTER Kote varnish does need hobby item building supply paint store products will suffice Another frequently raised query involves wheel tracking Old-Timers relatively large dihedral angle average Old-Timer can contribute tendency dig wing tip landing particularly problem crosswind solution lies setting wheels some toe front edge wheels should point toward mid-line model Set manner model tends move toward high wing tip just wheel touches terra firma reader may have think through bit look models does work new SAM supplier list Jim Adams editor SAM Speaks newsletter Society Antique Modelers compiling updated list suppliers hardware kits engines plans etc germane area hobby will supplied SAM members soon business should advise him products ASAP 2538 Spurgeon St Santa Ana CA 92706 reader member SAM let advent new list motivator go ahead join Send application blanks appear time time MA Tim Banaszak 1947 Superior Ave Whiting IN 46394 Whoops delightful elderly patient recently remarked As get older part uuRE AIRCRAFT North Orange Blossom Truil Orlando$ FL 32804 w 3O5/42215$t works better better forgetter know shes right July copy implied Cavalier Twin highly novel 1941 forgotten Frank Ehlings twin illustrated 1938 Zaic Yearbook Petrides Dolfin Frank Ehling AMAs technical director de signed Free Flight models author yet Among twin Elf-powered model featuring plug-in outboard wing panels twin fins plug-in tail section interested can look up Zaic Yearbook Incidentally sorts great reading available various Yearbooks including newly-reproduced 1934 issue abiding interest history hobby must place Frank Zaics Yearbooks top list reference works obscure perhaps certainly beyond recall Super Dolfin note odd spelling Thracy Petrides now note odd first name Although Petrides designs published such Privateer PB-I Dolphin Super Dolfin sold plan RC Specialist operation NYU address model resembles fat round-fuselaged Dolphin twin engines placed either side nose winglets span 102-in fuselage 6-ft long photo ad Super Dolfin found page 60 ModelAirplane News May 1941 Look itup sometime really different Dee B Mathews 506 South Walnut Greensburg KS 67054 IWhen writing advertmsrs mention reed about thent Model Aviation B obbV B o .hebt r r OLD TIMER KITS Full Partial Kits P & W Semi-Kilo--Rib Tip Former Kilo 1941 Playboy Jr 14 Span Plan Extra $1450 Plan--$2 50 companion Stripwood Kit--S13 12 combination Playboy Jr tall above itema-$20 00 1041 Playboy Sr 00 span Plan Extra $1021 Plan-$300 companion Stripwood Kit--$2030 Combination Playboy Sr tall three itema-S45 00 1030 Zipper comet 54 Span Plan Inol $3300 Companion Strlpwood Kit--$1572 Combination Zipper Roth above itema--$45OO 1937 Dallaire sportater 100 Span Plan EX $2600 Plan--$500 companion Stripwood Kit-$3000 combination Dallaire Kit tall three ltema$5000 1930 Powerhouse 04 Span Plan Extra $2100 Plan--$400 companion Strlpwood Kit--$1770 combination Powerhouse Kit 3 above $3900 Other combinations available 1930 Ruccaneer$40 00 1938 Clipper MK $3000 1039 Mercury $5500 1935 Miss America $5900 1040 Ranger $2700 1040 sailplane $7000 1040 So Long $2000 1030 Trenton Terror $3000 Korda Wake $1600 MIDWAY MODEL COMPANY Partial Kits 1036 Flying Quaker 04 Span Plan IncI $2110 Companion Stripwood Kit--$3140 Combination Flying Quaker Kit Roth items54900 1937 Quaker Flash 67 Span Plan md $1750 Companion Stripwood Kit--$2345 Combination Quaker Flash Kit Roth items $3000 1937 Long cabin 70 Span Plan Extra $1500 Plan--SI 00 Companion Stripwood Kit--52406 Combination Long Cabin Kit three--$40OO MIDWAY MODEL COMPANY Pull Kits 1039 Air Traila Sportater 50 1015 K/C $3506 1930 Powerhouse 50 Span 1015 a/C $3506 1040 Ruccard Rombahell 30 Span 020 $1105 1040 Playboy Sr 38 Span 020 engines $1291 1935 Miss America 30 Span 020 engines $1295 1940 Clipper MKII 30 Span 020 engines $1495 1040 New Ruler 31 Span 020 engines $1395 1940 Mercury ScIentifics 36 Span 020 $1395 1941 Reouest 30 Span 020 engines $1205 SHIPPING AND HANDLING 50 Page CATALOGUE Up $000 add $110 $100 PP IA copy will $001 $2000 add $225 sent free upon $2001 $l500 add $300 request orderl $11101 $7000 add $310 a F am over $7000 add $400 PO Box 3004 CA Addressees add 0% Tax Seal Beach Ca 00740 Send MOVisaAlC 0* Eap 17101 094-02231-Best CK COD--Exact Chg mornings recorder-- 51 10 Hdl cash Onlyl activates rings September1981 119 Show Features wwee 25 S 0 S 0 POflS StOCK World standard metrics Se dr order direct front deoped 8$ presents th# new U USA Inc RC Old-Timers/Mathews Continued page 43
Edition: Model Aviation - 1981/09
Page Numbers: 42, 43, 119
Radio Control Old-Timers Dee B Mathews OLD-TIMER month Mercury IV is Old-Timer SAM definition certainly exemplifies looks like real air plane school Free Flight design Bob Wischer describes photo model beautiful plane Old Warden 1978 English chapter SAM SAME get has broader era-base encourage its members build fly beautiful examples model designers art own magazines post- 1942 era replete equally appealing models plan feature next column Since Old Warden social event opposed contest lovely works such Mercury IV can flown low-key settingto very considerable delight present flight photo illustrates phenomenon rather well Old Warden oriented OHHs AHHs Gotcha rather large model challenging construc tion techniques Mercury IV projects can reward its builder years yeoman service fuselage fully planked over box-and-former frame smoothly planked Gottingen-sectioned wing provides good thermal potential moments provide exceptional stability Plans still available extensive Aero modeller list numerous other Free Flight sport Scale designs eminently suited conversion RC-assist available through Dave Shiptons Hobby Hideaway Delavan IL 61734 Dave well remembered man Scale cage many Nationals Gold Seal engines Irwin Oblsson authorized reproductions will utilize old pro duction dies tooling Advanced orders will accepted sequence received interested should place $50 deposit Herbs Model Motors Box 61 Forksville PA 18616 First come first served Herb WahI responsible Hurleman engines have shown previous columns well beautiful Brown Jr reproductions now out production readers familiar Ohlsson motors some explanations may order Gold Seal O&Rs second production engine should confused later onepiece-cased O&R 60 Gold Seal has displacement of56 cu multi-piece cylinder bolted onto crankcase right side cylinder removable section over intake port Although distinctively Ohlsson design very obviously same postwar 60 Gold Seal name came about result first-place finish design section industrial exhibits 1937 California State Fair entered judged cameras typewriters clocks etc presented Gold Seal State California no connection model contest portion same fair INCHES Interestingly configuration shared O&R engines postwar years first introduced 1938on 23 engine Gold Seal remained O&Rs large-bore design until replaced Custom 60 March 1940 turn replaced slightly different 60 Special October 1941 Special configuration its ball-thrust crank shaft unit produced tens thousands postwar years com monly found today Draw Pahdnah fuel Gasoline oil fuel used both Old-Timer ignition chainsaw motors poses novel problem its transfer can model stuff will totally destroy diaphragm conventional model fuel pump within minutes same problem also common diesel fuels used model aircraft need black neoprene fuel lines has mentioned several times fuel transfer system compatible fossil fuels has remained puzzle No Dave Brown Products now has Six Shooter pump set up specifically use gasoline diesel fuels diaphragm pump length large-diameter black neoprene tubing see activated rotating handle squeezes tube along its length part pump makes contact ____________ STAB HAS LIFTING SECTION 1___ / MERCURY1_ BYMICK SMITHQ coNcouRs DELEGANcE WINNER AEROMODELLER PLAN PET5O4 PUBLISHED MARCH 1953 FULL SiZES SWUS COURTESY HOBBY HIDEAWAY DATA WINGSPAN 96WEIGHT 80 GOS WahI BangOR Herb Wahl has announcedWING AREA 1050 SQ INCHES intention produce limited run OhlssonPOWER 10-16CC L60-9H CO INSIGOETYINGEN 497 SECTION 42 Model Aviation Englands Old Warden Rally low-pressure fun-type thing Just look idyllic scene right Ron Castles Mercury IV gliding Makes want run right out fly awhile doesnt Photo left good look Rons modelMerco 61 glow 3-ch beautiful silk nylon finish Note rudder elevator hinge lines 1978 photos Bob Wischer fuel tube itself moving part handle assembly Dave tells us have soaked section tube gasoline days no swelling other changes Satisfied result soaked scrap section tubing Dave sent us can Davis Diesel fuel six days no observable chemical physical alterations other fact smells sort odd So Old-Timer ignition fliers Quarter Scal ers diesel nuts can now discard oil cans disposable horse syringes Six Shooter can pump 06 oz fuel per revolutioncertainly faster filling 4-oz tank 50cc syringe Available well-stocked dealers Six Shooter tested recommended writer Whats name certainly aware name Mercury commonly associated Ben Shereshaws design kitted Scien tific However name very popular limited single model design Mercury also name FF pylon model Comet rubber designs Peerless Guillow engines Avion Davies Charlton line outboard motors course automobile Ford repetition same name numerous designs rather common Check out John Pond catalog such names Powerhouse Interceptor neo what past installments column have endeavored add some small helps making transition illogical British system measure metric little easier Weve mentioned rule sixes 100mm cigarette package Now weve stumbled another neologism aid conversion ounce equals 28 grams roughly An easy way recall file memory bank ounces grams year before stock market crash 1929 new readers rule sixes says cubic inches divided 06 equals cubic centimeters Cubic centimeters multiplied 06 equals cubic inches easily recalled remembering 10cc engine also 60 cu cigarette neogism involves fact lOOmns pack also close four inches length Therefore 25mm close inch Keep cards letters coming receive fairly steady flow letters always appreciate comments questions make effort answer letter format column doesnt fit question-andanswer style letters helpful gauging what should incorporated column ask continue flow also always need black white photos frequently asked question keep color paint iron-on coverings Frankly MonoKote used polyurethane paints Poly-U Perfect K&B Super Poxy stick beautifully suspect Hobbypoxy will too havent tried yet Conversely have successful keeping paint softer iron-ons Clear polyurethane varnish also very helpful avoiding fuel creep along seams MonoContinued page 119 wheel hubs wheel pairs matched far firmness quality balance 1 75 T RWheels1-3/4$300Pair 2 00 T RWheels2$325Pair 2 25 T R SWheels2-1 /4$350Pair 2 50 T R SWheels2-1/2$375Pair 2 75 T R SWheels2-3/4$400Pair 3 00 T R SWheels3$425Pair 325 T RWheels3-1/4$450Par 3 50 T RWheels3-1 /2$475Pair Shown actual size new hefty ball link perfect 1/4 scale application Featuring strong 440 threaded steel ball new heavy duty nylon socket Also excellent R/G car steering linkage CAT No 259 $125 iVec DU-BRO HEAVY DUTY HINGES /000 Removable Cotter Pin 000 Shown actual size 0 0 0strong nylon hinges built take heavy loads Dimen sions 3/4 wide x 1-3/8 long x 040 thick using 3/64 diameter cotter pin maximum convenience strength Ideal 1/4 scale models 15 Per Pkg375No257 05L Pf0 0 DU DU-BRO PRODUCTS INCORPORATED 480 BONNER ROAD WAUCONDA ILLINOIS September 1981 43 collection Herb Wahis products 3 Hurleman singles Hurleman twin Brown Jr will soon producing Ohisson Gold Seal reproduction Read about article WITH NEW ALUMINUM FINISH HUBS These low bounce shock absorbing wheels feature new nylon metalic finish NEW HEAVY DUTY BALL LINK THE F1A1 FILTER CAT NO $175 NOTHING GETS PAST THE FINAL FILTER Kote varnish does need hobby item building supply paint store products will suffice Another frequently raised query involves wheel tracking Old-Timers relatively large dihedral angle average Old-Timer can contribute tendency dig wing tip landing particularly problem crosswind solution lies setting wheels some toe front edge wheels should point toward mid-line model Set manner model tends move toward high wing tip just wheel touches terra firma reader may have think through bit look models does work new SAM supplier list Jim Adams editor SAM Speaks newsletter Society Antique Modelers compiling updated list suppliers hardware kits engines plans etc germane area hobby will supplied SAM members soon business should advise him products ASAP 2538 Spurgeon St Santa Ana CA 92706 reader member SAM let advent new list motivator go ahead join Send application blanks appear time time MA Tim Banaszak 1947 Superior Ave Whiting IN 46394 Whoops delightful elderly patient recently remarked As get older part uuRE AIRCRAFT North Orange Blossom Truil Orlando$ FL 32804 w 3O5/42215$t works better better forgetter know shes right July copy implied Cavalier Twin highly novel 1941 forgotten Frank Ehlings twin illustrated 1938 Zaic Yearbook Petrides Dolfin Frank Ehling AMAs technical director de signed Free Flight models author yet Among twin Elf-powered model featuring plug-in outboard wing panels twin fins plug-in tail section interested can look up Zaic Yearbook Incidentally sorts great reading available various Yearbooks including newly-reproduced 1934 issue abiding interest history hobby must place Frank Zaics Yearbooks top list reference works obscure perhaps certainly beyond recall Super Dolfin note odd spelling Thracy Petrides now note odd first name Although Petrides designs published such Privateer PB-I Dolphin Super Dolfin sold plan RC Specialist operation NYU address model resembles fat round-fuselaged Dolphin twin engines placed either side nose winglets span 102-in fuselage 6-ft long photo ad Super Dolfin found page 60 ModelAirplane News May 1941 Look itup sometime really different Dee B Mathews 506 South Walnut Greensburg KS 67054 IWhen writing advertmsrs mention reed about thent Model Aviation B obbV B o .hebt r r OLD TIMER KITS Full Partial Kits P & W Semi-Kilo--Rib Tip Former Kilo 1941 Playboy Jr 14 Span Plan Extra $1450 Plan--$2 50 companion Stripwood Kit--S13 12 combination Playboy Jr tall above itema-$20 00 1041 Playboy Sr 00 span Plan Extra $1021 Plan-$300 companion Stripwood Kit--$2030 Combination Playboy Sr tall three itema-S45 00 1030 Zipper comet 54 Span Plan Inol $3300 Companion Strlpwood Kit--$1572 Combination Zipper Roth above itema--$45OO 1937 Dallaire sportater 100 Span Plan EX $2600 Plan--$500 companion Stripwood Kit-$3000 combination Dallaire Kit tall three ltema$5000 1930 Powerhouse 04 Span Plan Extra $2100 Plan--$400 companion Strlpwood Kit--$1770 combination Powerhouse Kit 3 above $3900 Other combinations available 1930 Ruccaneer$40 00 1938 Clipper MK $3000 1039 Mercury $5500 1935 Miss America $5900 1040 Ranger $2700 1040 sailplane $7000 1040 So Long $2000 1030 Trenton Terror $3000 Korda Wake $1600 MIDWAY MODEL COMPANY Partial Kits 1036 Flying Quaker 04 Span Plan IncI $2110 Companion Stripwood Kit--$3140 Combination Flying Quaker Kit Roth items54900 1937 Quaker Flash 67 Span Plan md $1750 Companion Stripwood Kit--$2345 Combination Quaker Flash Kit Roth items $3000 1937 Long cabin 70 Span Plan Extra $1500 Plan--SI 00 Companion Stripwood Kit--52406 Combination Long Cabin Kit three--$40OO MIDWAY MODEL COMPANY Pull Kits 1039 Air Traila Sportater 50 1015 K/C $3506 1930 Powerhouse 50 Span 1015 a/C $3506 1040 Ruccard Rombahell 30 Span 020 $1105 1040 Playboy Sr 38 Span 020 engines $1291 1935 Miss America 30 Span 020 engines $1295 1940 Clipper MKII 30 Span 020 engines $1495 1040 New Ruler 31 Span 020 engines $1395 1940 Mercury ScIentifics 36 Span 020 $1395 1941 Reouest 30 Span 020 engines $1205 SHIPPING AND HANDLING 50 Page CATALOGUE Up $000 add $110 $100 PP IA copy will $001 $2000 add $225 sent free upon $2001 $l500 add $300 request orderl $11101 $7000 add $310 a F am over $7000 add $400 PO Box 3004 CA Addressees add 0% Tax Seal Beach Ca 00740 Send MOVisaAlC 0* Eap 17101 094-02231-Best CK COD--Exact Chg mornings recorder-- 51 10 Hdl cash Onlyl activates rings September1981 119 Show Features wwee 25 S 0 S 0 POflS StOCK World standard metrics Se dr order direct front deoped 8$ presents th# new U USA Inc RC Old-Timers/Mathews Continued page 43