Radio Control Old-Timers Dr DB Mathews SHERESHAWS NIMBUS month present really rare bird Ben Shereshaws designs frequently seen both competition sport model photos first its kind can recall ever seeing modern-day publication certainly reason its Nimbus bad design aerodynamic ally Rather problems lie two areas 1 construction system nightmare 2 drawings available grossly error As published June 1937 ModelAirplane News June 1938 listed John Ponds catalog fuselage built up using series full-depth bulkheads held together four longerons No crutch orframe used other words attempted develop straight fuselage eyeballing thing midair attaching longerons quote magazine construction article Select four hard balsa longerons texture bending qualities longerons marked point attach bulkheads Insert two upper longerons notches first allow glue set Follow same procedure two lower ones Needless say Bill Schmidt first mentioned interest Nimbus reaction least cool Nonetheless did make him copy article advised him consider similarbut smaller certainly easier-to buildCumulus latter model fea tured three-view April 1978 column However Schmidt wasnt about let talk him out idea proceeded order fullsized drawings turned out incredibly messed up top view asymmetrical wing saddle rearwardwith bulkheads match still gently suggesting forget whole thing build Cumulus Bill went back original dimensions shown tiny magazine drawings presumed way commercial full-sized ones developed drafted accurate set drawings cure construction nightmare went conventional box frame replotted bulkheads fit over just done Cumulus Once done drawings reduced 93% original size blueprint shop done make models size closely match capabilities OS60 Blackhead power plant result model diminutive 114-in wingspan 14-in chord 1550 sq areaa tiny little thing point must confess see incredible amount work involved project justified model climbs astounding rate glides slowly true Antique design Ive ever seen OS cross-scavenged power plant runs spark ignition aimost designed itand does ever haul model up Apparently power/weight/drag ratio ex ceeds original Brown Jr-powered model enough make bit vertical-fin-shy Bills tends want wander bit under power However fool thing glides just majestically SEC Y SHOWS TYPICAL FUSE X-SECTION NO SCALEWINGSPAN 123 INS CHORDI5 INS7 AIRFOILEIFFEL 400_____ POWER BROWN 60 CU INS PROPI4INSL NOTE FUSE FROM 4 MAIN LONGERONSSTRINGERS THEN PLANKED WING SPARS BUILT-UP LA TRUSS Ir THE NIMBUS DESIGNED BY Ben Shereshaw BUILT BY WALTER DICKINSON 50 Model Aviation Bill Schmidts Nimbusa Shereahaw design 1937 Graceful Covering black yellow silk Power OS 60 blackhead converted ignition gives plane rocketlike climb Doc loves its floating glide Bill simplified fuselage structure Span 114 Recognize Jim Homer enlarged Gold berg/Comet Interceptor Joe Percy photo now probably did 1937 Wanna bet wont last Nimbus seen SAM competition prolific Mr Shereshaw Ive mentioned previous occasions incredible man could produce publish designs such constricted time-frame Cumulus published September 1937 issue Flying Aces Nimbus appeared three months earlier mentioned before Model Airplane News Two months later Cloud Cruiser Flying Aces drawings Nimbus reveal just person could designs . built Walter Dickinson As mentioned another time Ben taught model-building class large department store era obvious designs done farm out projects youngsters classes certainly reflection times man else could youngsters have come up funds model building tough Depression times Id bet Ben took fee publication kids got keep models Sort neat setup dont think Mason-Dixon Line being written snowy nasty cold Sunday January 1987 Ijust visited some friends going Southwestern Regional Model Champs Buckeye AZ Franidy wish going also noticed King Orange held down sunny Florida last weekend will pardon little sermon Id like expound subject bothers Lets face people age Whats Doc Thirtynine RMcM live essentially sedentary Continued page 160 GATOR Makes Winner L 11613 TAIL 45 DELUX ALL 3MM UT An new Tiger Toil 120 four strokes piped 60 twa strokes beautiful performer foreompetitionorjustshowingofflAll balsa hit mochined wood ports complete hordwore poclioge tisot includes plug-in od justoble stob parts ond nem wing mounts Wing Spon -72 Wing Areo -860 sq Complete Delun Kit$15995 CASE An ineriperisse nuggro molded case protect erspensive transmtter both Sno stick single stick transmitters Brown leather gran witr aluminum trim ano locking caso $1395 See Your Dealer Order Direct Include $1 50 Per Item UPS GATOR R/C PRODUCTS 37t3 Pompano brine C Pensacola FL 35514 Phone 1904 4768639 PUI64N ADIUTADLI STA3 UT last stu can optimize stab incidence best Bight chreactenistics pair glass filled tryf adjusters ao nacladed IBM proside micro screna adjastmest smaller tromi tube Main tube alaminam mitt matcbng plienolic socket $695 WINS urn U@aiis Aluminuam alloytubrng plug-insmafl Included pair specat slip-fit phenofic sockets build tie miss muctsam Noh 6ZC modats 7/8 dia u 2 $ aa 2$995 1W dia 5 3$1495 momnims urn wing mounting system desieloped 86s Chidgey tiM t neM accurate stays tight Three rry4on keachets saemssand mactitnedannag blocks no included- $595 - MMK GAMUT Knstensen 0 aces Mety measure Aprdeadardeaceasused bylvai eto, eenatoranduddo-ttnow Sates guess wala os 0 5T inmngcutsnarpase Aqua tytod i J.r omp etc mfluctors 05 booliand arynag case $795 CS DGA DemignS DGADOmIgflS Os DGADesIgfltu se DGA Designie DGA Designs e C *DARNED GOOD AIRMEN Lightest weight Pilots Available B 0 * FULL BODY PILOT KIT L e ke V ny os ubber parts Easy osnemble tinish Kit oontains Pilot head hands boots helrriet 0 sCOP goggles toll teniplates andeasy instruCtionS Fullypositionable too.0 Height- Vight-NEW Low N-weeNo206-1/6 Scale 11s2 ozS790 No2051/5 Scale l4ia30z5951A\i/In No204-1/4 Scale 173a4 ozs gej SPORTSMAN BAR5STORMhR FULL BOOT OUST No205 —1/3 Scale 23 Oozte9 C *us PILOT KIT Liieiiim nnni nine iusbni trans 00 Kitnontains PiiOi neasi heiwni spoitnan nannies arri JacketEcun toennitnish5 assem SiB Height Vllght Low N-iseC 145 150 rcaie 3-i h 3 aoa5 595 No ion sScaie 3-75- i-i Oz5 6%h*,, PW OtOB- iaScaiea-ant-iZnz575simple No 05 t aStale5-na2-ians1490 re5ialrdC tt . ... . Aetosanulino realises . not ettalnebiC plestlos. C0 0 0 oOne ic extreme luSt weitni sui comphiinui tdi boctn Si trini Ch,stn oeii flaoe iitiie etteci iOn hailnion rani 0 Send sl00 Catalog B rk Slate FlesiBOntS asia 7* SaiCs tea. SCott check MO. COOS AtiOw 3 weeks sOenk niece B 0 DA Designs 50 OGA SO DGA Designs May1987 51 Tom Jozwiak converted 1915 twinpusher design Gas powerand RCi Note add vertical tins since doesnt have two big freewheeling props gave original its stability HIGH PERFORMANCE FLAP I iii 0 Get airborne FASTER & SAFER Z Izi~ Super Strong & Lightweight Sawias ng speed w hau sac tic rig pertartsance Usew h eec eta panesactvaet hate aft sw ch servo Fully adjustable hI airtoil tar easy installatiOn Readybuill comes complete instructions 5550 2 per pkg Send tar FREE Brachum Dealer Inquiries Invited &lcfdflte 19ila2 &n#%f Box 1962 Lawrence KS 66044 R/C Idle-Bar Glow Plugs Long Short Also.Only $189 Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson AssociateS PO Box 151aiUIiM Sine 1948 Wayne NJ CUTTING TOOLS BALSA STRIPPER Precision stripwood easy Master Airscrew BALSA STRIPPER Strips up 1/2 wide 1/4 thick can cut quickly accurately trom sheet stock ver nier wheel advances %2 per turn adjustment precise stripper comes standard type 11 hobby blade unconditionally guaranteed against failure five years S495 suggested retail Mco-*StabIe available dealer WINDSOR PROPELLER CO $7 $19 Some ships slso have Koku-Fan three-view drawings svailable Xerox copies three-views magazines other sources Bobs complete list over 400 Foto-Psaks available $2 plus long SASE address 2334 Ticonderoga Costa Mesa CA 92626 special arrangement Bob send long SASE address end column Ill send Xerox page contains Sailplanes Motor-Gliders Second International First US F3H Cross-Country Contest will sponsored Thousand Oaks Soaring Society TOSS July 9 through 12 event has both FAI AMA sanctions F3H rules will strictly followed site Taft CA weather advertised being hot very good lift annual contest TOSSbut first time American club has obtained FAI sanction full de scription F3H International events see Larry Jollys May 86 Model Aviation report First International Cross-Country contest held South Africa December 1985 Larry won contest nosed out Joe Wurts 1986 TOSS X-Country complete contest info write Chuck Griswold 1646 LaJolla Drive Thousand Oaks CA 91360 F3H Fanatics can warm up Second InterW1.i *sts 132 ea / RAZOR PLANE new Master Airserew RAZOR PLANE uses heavyduty industrial blade held place two locating screws allowing cutting depth set very rigidly accurately plane has variety uses ding smoothing contours fuselages cowlings shap ing edges thinning strips making custom-sized strip stock frame blade retainer made tough Lesan plastic should prove almost indestruc tible normal use$495 suggested retail 384 Tesconl Ct Santa Rosa CA 95401 national entering Santa Maria Soaring So cietys Seventh Annual X-Country June 6 7 single-launch event over 25-mile triangu lar course California Valley will big barbeque raffle Saturday night Contact Larry Turner 323 Noguera Place Arroyo Grande CA 93420 Third Annual Western US RC Soaring Championships will moved Merwin Ranch Modesto year Dates June 13 14 event growing countrys biggest decided Modesto way lodging dining did Courtland Also Modesto RC Club assuming responsibility whole shebang Get details Dave Darling 2705 Harvest Road Modesto CA 95355-3430 Byron Blakeslee 3134 Winnebago Dr Se dalia CO 80135 RC Aerobatics/Van Putte Continued page 49 promotional material Goldberg al ready catalogs printed about 2000 bound After about hundred phone calls between Hazel Dan Ueberman Goldberg conferring lawyers moans groans considerable con versation figured best thing could would sit back have good laugh must say have con troversy about name new product am glad Carl Goldberg Models Right off offered change name pull advertising Although both us well introductory programs felt would easier less expensive us change name product instead Now needed new name could continue introductory program Back fort hustled change catalogs resurrect already-sent magazine advertising tried conduct business normal Hazel Maxey boys job renaming new covering material finally came upon idea tying new covering material Supercoat Dope natural already decided match colors covering dope anyway So its back mundane ordinary life Sig have experimenting new cyanoacrylate glue lately need real good catchy name Maxey wandered other day suggested Ultra-Jet Hmm what think think people Sig Goldberg perfect examples fact treat everyone right maintain sense humor can make living hobby Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Old-Timers/Mathews Continued page 51 lives have absolutely no business out flying model airplanes three four days highheat/humidity weather tragic death such occurred last years SAM Champs points out too clearly such activities ill-advised types played tennis year round jogged some such regularly perhaps lesser hazard would present nature model-building activities us get littleif anyreally strenuous exercise such us go running around countryside heat summer chasing model airplanes truly fool hardy seems sort contest aimed old folks like us should placed south Continued page 162 NORTHEAST AEROD YNAMICS 61C LEBANON STREET ORD ME 04073 e 207-490-1881 TRAIN-AIR 20 TRAIN-AIR 40 SPORT-AIR 40 BEL-AIR 40 See local dealer call us referral 160 Model Aviation Leader Small Airfoil Technology MASTER AIRSCREW BEL-AIR 60 Mason-Dixon Line winter north summer farther north better distinctly recall getting rather alarmed seeing flushed faces gross perspiration short ness breath general fatigue observed SAM Champs held LaJunta CO flirting disaster West Texas turns out hot calm next July Tim Banazak mentioned concern SAM banquet put down because Having SAM Champs winter months would interfere school young people What young people Ive never seen school-age youngster compete SAM event matter us dont have school-age children just dont think objection valid point Id personally much rather use some vacation time observe fly SAM Champs held January Sun Belt half-kill myself heat summer about DeeB Mathews 909 MaizeRd Townhouse 734 Wichita KS 87212 RC Electrics/Kopski Continued page 53 came some quite firm lessons 1 Flying total darkness perfectly doable downright fun too hard modelers believe being 2 Gas flying total darkness mess full daylight 3 Electric motors pods can fly very well can also genuine paln photos show two highly successful Elec tric night fliers fact planes flew very well sorta self-evident rudderonlythey well-behaved Anyway motor/pods installed just front leading edge wing height just sufficient prop clearance installations tractor except Gas pusher thrust lines set zero down zero side models otherwise normal flatbottomed airfoil sections ranging thickness 10% 12% Wings typically set angle inci dence positive two three degrees stabs zero degrees Balance points classic 30-33% Wing loadings typically eight ounces Gas 10-11 oz Electric Flight 162 Model Aviation speed relatively slow rudder surfaces throws relatively large Andexcept couple radio-battery rundownsI never nighttime flight difficulty need go find plane over active period several years So dont recommend motors pods Strictly mechan ical/structural reasonsthe paln part story Electric motors comparatively heavy turns out experience cannot make pod strong enough hold up under normal flight usage relatively minor landing bump causes severe load pod/pylon structure damage same guaranteed fact beginning spent time repalring pods doing anything else finally reached point attached pod fuselage tongue-and-groove arranged friction slip-joint screwadjusted tightness allowed entire pod assembly pull free fuselage needed put motor/pod flailing about mode constrained motor wires did put stop continuing structural destruction reasons motors pod first place could install spotlight nose motor would normally minimize motor interfacing ground because landing altitude impossible judge total darkness So unless have no choice ie some extreme reason installing motor conventionally sug gest avoid Electric motors pods Structur ally theyre pain mysteries motors continue bewilder readers especially newer Electric model ers Last month column offered some thoughts about updating upgrading way model motors characterized described modelers could eventually easily insight understanding relate motor size plane size Now Id like offer some thoughts information about Electric motors general idea illustrate Electric life might have gathered motors instruction manual now modelers know typical model motor has iron housing containing Continued page 170 FLYING SCALE MODEL RIC PLANS Super Detail os Instruction Sheets Smith Plans 19163 Shadowood Dr Send SASE -Monument CO 80132
Edition: Model Aviation - 1987/05
Page Numbers: 50, 51, 160, 162
Edition: Model Aviation - 1987/05
Page Numbers: 50, 51, 160, 162
Radio Control Old-Timers Dr DB Mathews SHERESHAWS NIMBUS month present really rare bird Ben Shereshaws designs frequently seen both competition sport model photos first its kind can recall ever seeing modern-day publication certainly reason its Nimbus bad design aerodynamic ally Rather problems lie two areas 1 construction system nightmare 2 drawings available grossly error As published June 1937 ModelAirplane News June 1938 listed John Ponds catalog fuselage built up using series full-depth bulkheads held together four longerons No crutch orframe used other words attempted develop straight fuselage eyeballing thing midair attaching longerons quote magazine construction article Select four hard balsa longerons texture bending qualities longerons marked point attach bulkheads Insert two upper longerons notches first allow glue set Follow same procedure two lower ones Needless say Bill Schmidt first mentioned interest Nimbus reaction least cool Nonetheless did make him copy article advised him consider similarbut smaller certainly easier-to buildCumulus latter model fea tured three-view April 1978 column However Schmidt wasnt about let talk him out idea proceeded order fullsized drawings turned out incredibly messed up top view asymmetrical wing saddle rearwardwith bulkheads match still gently suggesting forget whole thing build Cumulus Bill went back original dimensions shown tiny magazine drawings presumed way commercial full-sized ones developed drafted accurate set drawings cure construction nightmare went conventional box frame replotted bulkheads fit over just done Cumulus Once done drawings reduced 93% original size blueprint shop done make models size closely match capabilities OS60 Blackhead power plant result model diminutive 114-in wingspan 14-in chord 1550 sq areaa tiny little thing point must confess see incredible amount work involved project justified model climbs astounding rate glides slowly true Antique design Ive ever seen OS cross-scavenged power plant runs spark ignition aimost designed itand does ever haul model up Apparently power/weight/drag ratio ex ceeds original Brown Jr-powered model enough make bit vertical-fin-shy Bills tends want wander bit under power However fool thing glides just majestically SEC Y SHOWS TYPICAL FUSE X-SECTION NO SCALEWINGSPAN 123 INS CHORDI5 INS7 AIRFOILEIFFEL 400_____ POWER BROWN 60 CU INS PROPI4INSL NOTE FUSE FROM 4 MAIN LONGERONSSTRINGERS THEN PLANKED WING SPARS BUILT-UP LA TRUSS Ir THE NIMBUS DESIGNED BY Ben Shereshaw BUILT BY WALTER DICKINSON 50 Model Aviation Bill Schmidts Nimbusa Shereahaw design 1937 Graceful Covering black yellow silk Power OS 60 blackhead converted ignition gives plane rocketlike climb Doc loves its floating glide Bill simplified fuselage structure Span 114 Recognize Jim Homer enlarged Gold berg/Comet Interceptor Joe Percy photo now probably did 1937 Wanna bet wont last Nimbus seen SAM competition prolific Mr Shereshaw Ive mentioned previous occasions incredible man could produce publish designs such constricted time-frame Cumulus published September 1937 issue Flying Aces Nimbus appeared three months earlier mentioned before Model Airplane News Two months later Cloud Cruiser Flying Aces drawings Nimbus reveal just person could designs . built Walter Dickinson As mentioned another time Ben taught model-building class large department store era obvious designs done farm out projects youngsters classes certainly reflection times man else could youngsters have come up funds model building tough Depression times Id bet Ben took fee publication kids got keep models Sort neat setup dont think Mason-Dixon Line being written snowy nasty cold Sunday January 1987 Ijust visited some friends going Southwestern Regional Model Champs Buckeye AZ Franidy wish going also noticed King Orange held down sunny Florida last weekend will pardon little sermon Id like expound subject bothers Lets face people age Whats Doc Thirtynine RMcM live essentially sedentary Continued page 160 GATOR Makes Winner L 11613 TAIL 45 DELUX ALL 3MM UT An new Tiger Toil 120 four strokes piped 60 twa strokes beautiful performer foreompetitionorjustshowingofflAll balsa hit mochined wood ports complete hordwore poclioge tisot includes plug-in od justoble stob parts ond nem wing mounts Wing Spon -72 Wing Areo -860 sq Complete Delun Kit$15995 CASE An ineriperisse nuggro molded case protect erspensive transmtter both Sno stick single stick transmitters Brown leather gran witr aluminum trim ano locking caso $1395 See Your Dealer Order Direct Include $1 50 Per Item UPS GATOR R/C PRODUCTS 37t3 Pompano brine C Pensacola FL 35514 Phone 1904 4768639 PUI64N ADIUTADLI STA3 UT last stu can optimize stab incidence best Bight chreactenistics pair glass filled tryf adjusters ao nacladed IBM proside micro screna adjastmest smaller tromi tube Main tube alaminam mitt matcbng plienolic socket $695 WINS urn U@aiis Aluminuam alloytubrng plug-insmafl Included pair specat slip-fit phenofic sockets build tie miss muctsam Noh 6ZC modats 7/8 dia u 2 $ aa 2$995 1W dia 5 3$1495 momnims urn wing mounting system desieloped 86s Chidgey tiM t neM accurate stays tight Three rry4on keachets saemssand mactitnedannag blocks no included- $595 - MMK GAMUT Knstensen 0 aces Mety measure Aprdeadardeaceasused bylvai eto, eenatoranduddo-ttnow Sates guess wala os 0 5T inmngcutsnarpase Aqua tytod i J.r omp etc mfluctors 05 booliand arynag case $795 CS DGA DemignS DGADOmIgflS Os DGADesIgfltu se DGA Designie DGA Designs e C *DARNED GOOD AIRMEN Lightest weight Pilots Available B 0 * FULL BODY PILOT KIT L e ke V ny os ubber parts Easy osnemble tinish Kit oontains Pilot head hands boots helrriet 0 sCOP goggles toll teniplates andeasy instruCtionS Fullypositionable too.0 Height- Vight-NEW Low N-weeNo206-1/6 Scale 11s2 ozS790 No2051/5 Scale l4ia30z5951A\i/In No204-1/4 Scale 173a4 ozs gej SPORTSMAN BAR5STORMhR FULL BOOT OUST No205 —1/3 Scale 23 Oozte9 C *us PILOT KIT Liieiiim nnni nine iusbni trans 00 Kitnontains PiiOi neasi heiwni spoitnan nannies arri JacketEcun toennitnish5 assem SiB Height Vllght Low N-iseC 145 150 rcaie 3-i h 3 aoa5 595 No ion sScaie 3-75- i-i Oz5 6%h*,, PW OtOB- iaScaiea-ant-iZnz575simple No 05 t aStale5-na2-ians1490 re5ialrdC tt . ... . Aetosanulino realises . not ettalnebiC plestlos. C0 0 0 oOne ic extreme luSt weitni sui comphiinui tdi boctn Si trini Ch,stn oeii flaoe iitiie etteci iOn hailnion rani 0 Send sl00 Catalog B rk Slate FlesiBOntS asia 7* SaiCs tea. SCott check MO. COOS AtiOw 3 weeks sOenk niece B 0 DA Designs 50 OGA SO DGA Designs May1987 51 Tom Jozwiak converted 1915 twinpusher design Gas powerand RCi Note add vertical tins since doesnt have two big freewheeling props gave original its stability HIGH PERFORMANCE FLAP I iii 0 Get airborne FASTER & SAFER Z Izi~ Super Strong & Lightweight Sawias ng speed w hau sac tic rig pertartsance Usew h eec eta panesactvaet hate aft sw ch servo Fully adjustable hI airtoil tar easy installatiOn Readybuill comes complete instructions 5550 2 per pkg Send tar FREE Brachum Dealer Inquiries Invited &lcfdflte 19ila2 &n#%f Box 1962 Lawrence KS 66044 R/C Idle-Bar Glow Plugs Long Short Also.Only $189 Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson AssociateS PO Box 151aiUIiM Sine 1948 Wayne NJ CUTTING TOOLS BALSA STRIPPER Precision stripwood easy Master Airscrew BALSA STRIPPER Strips up 1/2 wide 1/4 thick can cut quickly accurately trom sheet stock ver nier wheel advances %2 per turn adjustment precise stripper comes standard type 11 hobby blade unconditionally guaranteed against failure five years S495 suggested retail Mco-*StabIe available dealer WINDSOR PROPELLER CO $7 $19 Some ships slso have Koku-Fan three-view drawings svailable Xerox copies three-views magazines other sources Bobs complete list over 400 Foto-Psaks available $2 plus long SASE address 2334 Ticonderoga Costa Mesa CA 92626 special arrangement Bob send long SASE address end column Ill send Xerox page contains Sailplanes Motor-Gliders Second International First US F3H Cross-Country Contest will sponsored Thousand Oaks Soaring Society TOSS July 9 through 12 event has both FAI AMA sanctions F3H rules will strictly followed site Taft CA weather advertised being hot very good lift annual contest TOSSbut first time American club has obtained FAI sanction full de scription F3H International events see Larry Jollys May 86 Model Aviation report First International Cross-Country contest held South Africa December 1985 Larry won contest nosed out Joe Wurts 1986 TOSS X-Country complete contest info write Chuck Griswold 1646 LaJolla Drive Thousand Oaks CA 91360 F3H Fanatics can warm up Second InterW1.i *sts 132 ea / RAZOR PLANE new Master Airserew RAZOR PLANE uses heavyduty industrial blade held place two locating screws allowing cutting depth set very rigidly accurately plane has variety uses ding smoothing contours fuselages cowlings shap ing edges thinning strips making custom-sized strip stock frame blade retainer made tough Lesan plastic should prove almost indestruc tible normal use$495 suggested retail 384 Tesconl Ct Santa Rosa CA 95401 national entering Santa Maria Soaring So cietys Seventh Annual X-Country June 6 7 single-launch event over 25-mile triangu lar course California Valley will big barbeque raffle Saturday night Contact Larry Turner 323 Noguera Place Arroyo Grande CA 93420 Third Annual Western US RC Soaring Championships will moved Merwin Ranch Modesto year Dates June 13 14 event growing countrys biggest decided Modesto way lodging dining did Courtland Also Modesto RC Club assuming responsibility whole shebang Get details Dave Darling 2705 Harvest Road Modesto CA 95355-3430 Byron Blakeslee 3134 Winnebago Dr Se dalia CO 80135 RC Aerobatics/Van Putte Continued page 49 promotional material Goldberg al ready catalogs printed about 2000 bound After about hundred phone calls between Hazel Dan Ueberman Goldberg conferring lawyers moans groans considerable con versation figured best thing could would sit back have good laugh must say have con troversy about name new product am glad Carl Goldberg Models Right off offered change name pull advertising Although both us well introductory programs felt would easier less expensive us change name product instead Now needed new name could continue introductory program Back fort hustled change catalogs resurrect already-sent magazine advertising tried conduct business normal Hazel Maxey boys job renaming new covering material finally came upon idea tying new covering material Supercoat Dope natural already decided match colors covering dope anyway So its back mundane ordinary life Sig have experimenting new cyanoacrylate glue lately need real good catchy name Maxey wandered other day suggested Ultra-Jet Hmm what think think people Sig Goldberg perfect examples fact treat everyone right maintain sense humor can make living hobby Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Old-Timers/Mathews Continued page 51 lives have absolutely no business out flying model airplanes three four days highheat/humidity weather tragic death such occurred last years SAM Champs points out too clearly such activities ill-advised types played tennis year round jogged some such regularly perhaps lesser hazard would present nature model-building activities us get littleif anyreally strenuous exercise such us go running around countryside heat summer chasing model airplanes truly fool hardy seems sort contest aimed old folks like us should placed south Continued page 162 NORTHEAST AEROD YNAMICS 61C LEBANON STREET ORD ME 04073 e 207-490-1881 TRAIN-AIR 20 TRAIN-AIR 40 SPORT-AIR 40 BEL-AIR 40 See local dealer call us referral 160 Model Aviation Leader Small Airfoil Technology MASTER AIRSCREW BEL-AIR 60 Mason-Dixon Line winter north summer farther north better distinctly recall getting rather alarmed seeing flushed faces gross perspiration short ness breath general fatigue observed SAM Champs held LaJunta CO flirting disaster West Texas turns out hot calm next July Tim Banazak mentioned concern SAM banquet put down because Having SAM Champs winter months would interfere school young people What young people Ive never seen school-age youngster compete SAM event matter us dont have school-age children just dont think objection valid point Id personally much rather use some vacation time observe fly SAM Champs held January Sun Belt half-kill myself heat summer about DeeB Mathews 909 MaizeRd Townhouse 734 Wichita KS 87212 RC Electrics/Kopski Continued page 53 came some quite firm lessons 1 Flying total darkness perfectly doable downright fun too hard modelers believe being 2 Gas flying total darkness mess full daylight 3 Electric motors pods can fly very well can also genuine paln photos show two highly successful Elec tric night fliers fact planes flew very well sorta self-evident rudderonlythey well-behaved Anyway motor/pods installed just front leading edge wing height just sufficient prop clearance installations tractor except Gas pusher thrust lines set zero down zero side models otherwise normal flatbottomed airfoil sections ranging thickness 10% 12% Wings typically set angle inci dence positive two three degrees stabs zero degrees Balance points classic 30-33% Wing loadings typically eight ounces Gas 10-11 oz Electric Flight 162 Model Aviation speed relatively slow rudder surfaces throws relatively large Andexcept couple radio-battery rundownsI never nighttime flight difficulty need go find plane over active period several years So dont recommend motors pods Strictly mechan ical/structural reasonsthe paln part story Electric motors comparatively heavy turns out experience cannot make pod strong enough hold up under normal flight usage relatively minor landing bump causes severe load pod/pylon structure damage same guaranteed fact beginning spent time repalring pods doing anything else finally reached point attached pod fuselage tongue-and-groove arranged friction slip-joint screwadjusted tightness allowed entire pod assembly pull free fuselage needed put motor/pod flailing about mode constrained motor wires did put stop continuing structural destruction reasons motors pod first place could install spotlight nose motor would normally minimize motor interfacing ground because landing altitude impossible judge total darkness So unless have no choice ie some extreme reason installing motor conventionally sug gest avoid Electric motors pods Structur ally theyre pain mysteries motors continue bewilder readers especially newer Electric model ers Last month column offered some thoughts about updating upgrading way model motors characterized described modelers could eventually easily insight understanding relate motor size plane size Now Id like offer some thoughts information about Electric motors general idea illustrate Electric life might have gathered motors instruction manual now modelers know typical model motor has iron housing containing Continued page 170 FLYING SCALE MODEL RIC PLANS Super Detail os Instruction Sheets Smith Plans 19163 Shadowood Dr Send SASE -Monument CO 80132
Edition: Model Aviation - 1987/05
Page Numbers: 50, 51, 160, 162
Radio Control Old-Timers Dr DB Mathews SHERESHAWS NIMBUS month present really rare bird Ben Shereshaws designs frequently seen both competition sport model photos first its kind can recall ever seeing modern-day publication certainly reason its Nimbus bad design aerodynamic ally Rather problems lie two areas 1 construction system nightmare 2 drawings available grossly error As published June 1937 ModelAirplane News June 1938 listed John Ponds catalog fuselage built up using series full-depth bulkheads held together four longerons No crutch orframe used other words attempted develop straight fuselage eyeballing thing midair attaching longerons quote magazine construction article Select four hard balsa longerons texture bending qualities longerons marked point attach bulkheads Insert two upper longerons notches first allow glue set Follow same procedure two lower ones Needless say Bill Schmidt first mentioned interest Nimbus reaction least cool Nonetheless did make him copy article advised him consider similarbut smaller certainly easier-to buildCumulus latter model fea tured three-view April 1978 column However Schmidt wasnt about let talk him out idea proceeded order fullsized drawings turned out incredibly messed up top view asymmetrical wing saddle rearwardwith bulkheads match still gently suggesting forget whole thing build Cumulus Bill went back original dimensions shown tiny magazine drawings presumed way commercial full-sized ones developed drafted accurate set drawings cure construction nightmare went conventional box frame replotted bulkheads fit over just done Cumulus Once done drawings reduced 93% original size blueprint shop done make models size closely match capabilities OS60 Blackhead power plant result model diminutive 114-in wingspan 14-in chord 1550 sq areaa tiny little thing point must confess see incredible amount work involved project justified model climbs astounding rate glides slowly true Antique design Ive ever seen OS cross-scavenged power plant runs spark ignition aimost designed itand does ever haul model up Apparently power/weight/drag ratio ex ceeds original Brown Jr-powered model enough make bit vertical-fin-shy Bills tends want wander bit under power However fool thing glides just majestically SEC Y SHOWS TYPICAL FUSE X-SECTION NO SCALEWINGSPAN 123 INS CHORDI5 INS7 AIRFOILEIFFEL 400_____ POWER BROWN 60 CU INS PROPI4INSL NOTE FUSE FROM 4 MAIN LONGERONSSTRINGERS THEN PLANKED WING SPARS BUILT-UP LA TRUSS Ir THE NIMBUS DESIGNED BY Ben Shereshaw BUILT BY WALTER DICKINSON 50 Model Aviation Bill Schmidts Nimbusa Shereahaw design 1937 Graceful Covering black yellow silk Power OS 60 blackhead converted ignition gives plane rocketlike climb Doc loves its floating glide Bill simplified fuselage structure Span 114 Recognize Jim Homer enlarged Gold berg/Comet Interceptor Joe Percy photo now probably did 1937 Wanna bet wont last Nimbus seen SAM competition prolific Mr Shereshaw Ive mentioned previous occasions incredible man could produce publish designs such constricted time-frame Cumulus published September 1937 issue Flying Aces Nimbus appeared three months earlier mentioned before Model Airplane News Two months later Cloud Cruiser Flying Aces drawings Nimbus reveal just person could designs . built Walter Dickinson As mentioned another time Ben taught model-building class large department store era obvious designs done farm out projects youngsters classes certainly reflection times man else could youngsters have come up funds model building tough Depression times Id bet Ben took fee publication kids got keep models Sort neat setup dont think Mason-Dixon Line being written snowy nasty cold Sunday January 1987 Ijust visited some friends going Southwestern Regional Model Champs Buckeye AZ Franidy wish going also noticed King Orange held down sunny Florida last weekend will pardon little sermon Id like expound subject bothers Lets face people age Whats Doc Thirtynine RMcM live essentially sedentary Continued page 160 GATOR Makes Winner L 11613 TAIL 45 DELUX ALL 3MM UT An new Tiger Toil 120 four strokes piped 60 twa strokes beautiful performer foreompetitionorjustshowingofflAll balsa hit mochined wood ports complete hordwore poclioge tisot includes plug-in od justoble stob parts ond nem wing mounts Wing Spon -72 Wing Areo -860 sq Complete Delun Kit$15995 CASE An ineriperisse nuggro molded case protect erspensive transmtter both Sno stick single stick transmitters Brown leather gran witr aluminum trim ano locking caso $1395 See Your Dealer Order Direct Include $1 50 Per Item UPS GATOR R/C PRODUCTS 37t3 Pompano brine C Pensacola FL 35514 Phone 1904 4768639 PUI64N ADIUTADLI STA3 UT last stu can optimize stab incidence best Bight chreactenistics pair glass filled tryf adjusters ao nacladed IBM proside micro screna adjastmest smaller tromi tube Main tube alaminam mitt matcbng plienolic socket $695 WINS urn U@aiis Aluminuam alloytubrng plug-insmafl Included pair specat slip-fit phenofic sockets build tie miss muctsam Noh 6ZC modats 7/8 dia u 2 $ aa 2$995 1W dia 5 3$1495 momnims urn wing mounting system desieloped 86s Chidgey tiM t neM accurate stays tight Three rry4on keachets saemssand mactitnedannag blocks no included- $595 - MMK GAMUT Knstensen 0 aces Mety measure Aprdeadardeaceasused bylvai eto, eenatoranduddo-ttnow Sates guess wala os 0 5T inmngcutsnarpase Aqua tytod i J.r omp etc mfluctors 05 booliand arynag case $795 CS DGA DemignS DGADOmIgflS Os DGADesIgfltu se DGA Designie DGA Designs e C *DARNED GOOD AIRMEN Lightest weight Pilots Available B 0 * FULL BODY PILOT KIT L e ke V ny os ubber parts Easy osnemble tinish Kit oontains Pilot head hands boots helrriet 0 sCOP goggles toll teniplates andeasy instruCtionS Fullypositionable too.0 Height- Vight-NEW Low N-weeNo206-1/6 Scale 11s2 ozS790 No2051/5 Scale l4ia30z5951A\i/In No204-1/4 Scale 173a4 ozs gej SPORTSMAN BAR5STORMhR FULL BOOT OUST No205 —1/3 Scale 23 Oozte9 C *us PILOT KIT Liieiiim nnni nine iusbni trans 00 Kitnontains PiiOi neasi heiwni spoitnan nannies arri JacketEcun toennitnish5 assem SiB Height Vllght Low N-iseC 145 150 rcaie 3-i h 3 aoa5 595 No ion sScaie 3-75- i-i Oz5 6%h*,, PW OtOB- iaScaiea-ant-iZnz575simple No 05 t aStale5-na2-ians1490 re5ialrdC tt . ... . Aetosanulino realises . not ettalnebiC plestlos. C0 0 0 oOne ic extreme luSt weitni sui comphiinui tdi boctn Si trini Ch,stn oeii flaoe iitiie etteci iOn hailnion rani 0 Send sl00 Catalog B rk Slate FlesiBOntS asia 7* SaiCs tea. SCott check MO. COOS AtiOw 3 weeks sOenk niece B 0 DA Designs 50 OGA SO DGA Designs May1987 51 Tom Jozwiak converted 1915 twinpusher design Gas powerand RCi Note add vertical tins since doesnt have two big freewheeling props gave original its stability HIGH PERFORMANCE FLAP I iii 0 Get airborne FASTER & SAFER Z Izi~ Super Strong & Lightweight Sawias ng speed w hau sac tic rig pertartsance Usew h eec eta panesactvaet hate aft sw ch servo Fully adjustable hI airtoil tar easy installatiOn Readybuill comes complete instructions 5550 2 per pkg Send tar FREE Brachum Dealer Inquiries Invited &lcfdflte 19ila2 &n#%f Box 1962 Lawrence KS 66044 R/C Idle-Bar Glow Plugs Long Short Also.Only $189 Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson AssociateS PO Box 151aiUIiM Sine 1948 Wayne NJ CUTTING TOOLS BALSA STRIPPER Precision stripwood easy Master Airscrew BALSA STRIPPER Strips up 1/2 wide 1/4 thick can cut quickly accurately trom sheet stock ver nier wheel advances %2 per turn adjustment precise stripper comes standard type 11 hobby blade unconditionally guaranteed against failure five years S495 suggested retail Mco-*StabIe available dealer WINDSOR PROPELLER CO $7 $19 Some ships slso have Koku-Fan three-view drawings svailable Xerox copies three-views magazines other sources Bobs complete list over 400 Foto-Psaks available $2 plus long SASE address 2334 Ticonderoga Costa Mesa CA 92626 special arrangement Bob send long SASE address end column Ill send Xerox page contains Sailplanes Motor-Gliders Second International First US F3H Cross-Country Contest will sponsored Thousand Oaks Soaring Society TOSS July 9 through 12 event has both FAI AMA sanctions F3H rules will strictly followed site Taft CA weather advertised being hot very good lift annual contest TOSSbut first time American club has obtained FAI sanction full de scription F3H International events see Larry Jollys May 86 Model Aviation report First International Cross-Country contest held South Africa December 1985 Larry won contest nosed out Joe Wurts 1986 TOSS X-Country complete contest info write Chuck Griswold 1646 LaJolla Drive Thousand Oaks CA 91360 F3H Fanatics can warm up Second InterW1.i *sts 132 ea / RAZOR PLANE new Master Airserew RAZOR PLANE uses heavyduty industrial blade held place two locating screws allowing cutting depth set very rigidly accurately plane has variety uses ding smoothing contours fuselages cowlings shap ing edges thinning strips making custom-sized strip stock frame blade retainer made tough Lesan plastic should prove almost indestruc tible normal use$495 suggested retail 384 Tesconl Ct Santa Rosa CA 95401 national entering Santa Maria Soaring So cietys Seventh Annual X-Country June 6 7 single-launch event over 25-mile triangu lar course California Valley will big barbeque raffle Saturday night Contact Larry Turner 323 Noguera Place Arroyo Grande CA 93420 Third Annual Western US RC Soaring Championships will moved Merwin Ranch Modesto year Dates June 13 14 event growing countrys biggest decided Modesto way lodging dining did Courtland Also Modesto RC Club assuming responsibility whole shebang Get details Dave Darling 2705 Harvest Road Modesto CA 95355-3430 Byron Blakeslee 3134 Winnebago Dr Se dalia CO 80135 RC Aerobatics/Van Putte Continued page 49 promotional material Goldberg al ready catalogs printed about 2000 bound After about hundred phone calls between Hazel Dan Ueberman Goldberg conferring lawyers moans groans considerable con versation figured best thing could would sit back have good laugh must say have con troversy about name new product am glad Carl Goldberg Models Right off offered change name pull advertising Although both us well introductory programs felt would easier less expensive us change name product instead Now needed new name could continue introductory program Back fort hustled change catalogs resurrect already-sent magazine advertising tried conduct business normal Hazel Maxey boys job renaming new covering material finally came upon idea tying new covering material Supercoat Dope natural already decided match colors covering dope anyway So its back mundane ordinary life Sig have experimenting new cyanoacrylate glue lately need real good catchy name Maxey wandered other day suggested Ultra-Jet Hmm what think think people Sig Goldberg perfect examples fact treat everyone right maintain sense humor can make living hobby Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Old-Timers/Mathews Continued page 51 lives have absolutely no business out flying model airplanes three four days highheat/humidity weather tragic death such occurred last years SAM Champs points out too clearly such activities ill-advised types played tennis year round jogged some such regularly perhaps lesser hazard would present nature model-building activities us get littleif anyreally strenuous exercise such us go running around countryside heat summer chasing model airplanes truly fool hardy seems sort contest aimed old folks like us should placed south Continued page 162 NORTHEAST AEROD YNAMICS 61C LEBANON STREET ORD ME 04073 e 207-490-1881 TRAIN-AIR 20 TRAIN-AIR 40 SPORT-AIR 40 BEL-AIR 40 See local dealer call us referral 160 Model Aviation Leader Small Airfoil Technology MASTER AIRSCREW BEL-AIR 60 Mason-Dixon Line winter north summer farther north better distinctly recall getting rather alarmed seeing flushed faces gross perspiration short ness breath general fatigue observed SAM Champs held LaJunta CO flirting disaster West Texas turns out hot calm next July Tim Banazak mentioned concern SAM banquet put down because Having SAM Champs winter months would interfere school young people What young people Ive never seen school-age youngster compete SAM event matter us dont have school-age children just dont think objection valid point Id personally much rather use some vacation time observe fly SAM Champs held January Sun Belt half-kill myself heat summer about DeeB Mathews 909 MaizeRd Townhouse 734 Wichita KS 87212 RC Electrics/Kopski Continued page 53 came some quite firm lessons 1 Flying total darkness perfectly doable downright fun too hard modelers believe being 2 Gas flying total darkness mess full daylight 3 Electric motors pods can fly very well can also genuine paln photos show two highly successful Elec tric night fliers fact planes flew very well sorta self-evident rudderonlythey well-behaved Anyway motor/pods installed just front leading edge wing height just sufficient prop clearance installations tractor except Gas pusher thrust lines set zero down zero side models otherwise normal flatbottomed airfoil sections ranging thickness 10% 12% Wings typically set angle inci dence positive two three degrees stabs zero degrees Balance points classic 30-33% Wing loadings typically eight ounces Gas 10-11 oz Electric Flight 162 Model Aviation speed relatively slow rudder surfaces throws relatively large Andexcept couple radio-battery rundownsI never nighttime flight difficulty need go find plane over active period several years So dont recommend motors pods Strictly mechan ical/structural reasonsthe paln part story Electric motors comparatively heavy turns out experience cannot make pod strong enough hold up under normal flight usage relatively minor landing bump causes severe load pod/pylon structure damage same guaranteed fact beginning spent time repalring pods doing anything else finally reached point attached pod fuselage tongue-and-groove arranged friction slip-joint screwadjusted tightness allowed entire pod assembly pull free fuselage needed put motor/pod flailing about mode constrained motor wires did put stop continuing structural destruction reasons motors pod first place could install spotlight nose motor would normally minimize motor interfacing ground because landing altitude impossible judge total darkness So unless have no choice ie some extreme reason installing motor conventionally sug gest avoid Electric motors pods Structur ally theyre pain mysteries motors continue bewilder readers especially newer Electric model ers Last month column offered some thoughts about updating upgrading way model motors characterized described modelers could eventually easily insight understanding relate motor size plane size Now Id like offer some thoughts information about Electric motors general idea illustrate Electric life might have gathered motors instruction manual now modelers know typical model motor has iron housing containing Continued page 170 FLYING SCALE MODEL RIC PLANS Super Detail os Instruction Sheets Smith Plans 19163 Shadowood Dr Send SASE -Monument CO 80132
Edition: Model Aviation - 1987/05
Page Numbers: 50, 51, 160, 162
Radio Control Old-Timers Dr DB Mathews SHERESHAWS NIMBUS month present really rare bird Ben Shereshaws designs frequently seen both competition sport model photos first its kind can recall ever seeing modern-day publication certainly reason its Nimbus bad design aerodynamic ally Rather problems lie two areas 1 construction system nightmare 2 drawings available grossly error As published June 1937 ModelAirplane News June 1938 listed John Ponds catalog fuselage built up using series full-depth bulkheads held together four longerons No crutch orframe used other words attempted develop straight fuselage eyeballing thing midair attaching longerons quote magazine construction article Select four hard balsa longerons texture bending qualities longerons marked point attach bulkheads Insert two upper longerons notches first allow glue set Follow same procedure two lower ones Needless say Bill Schmidt first mentioned interest Nimbus reaction least cool Nonetheless did make him copy article advised him consider similarbut smaller certainly easier-to buildCumulus latter model fea tured three-view April 1978 column However Schmidt wasnt about let talk him out idea proceeded order fullsized drawings turned out incredibly messed up top view asymmetrical wing saddle rearwardwith bulkheads match still gently suggesting forget whole thing build Cumulus Bill went back original dimensions shown tiny magazine drawings presumed way commercial full-sized ones developed drafted accurate set drawings cure construction nightmare went conventional box frame replotted bulkheads fit over just done Cumulus Once done drawings reduced 93% original size blueprint shop done make models size closely match capabilities OS60 Blackhead power plant result model diminutive 114-in wingspan 14-in chord 1550 sq areaa tiny little thing point must confess see incredible amount work involved project justified model climbs astounding rate glides slowly true Antique design Ive ever seen OS cross-scavenged power plant runs spark ignition aimost designed itand does ever haul model up Apparently power/weight/drag ratio ex ceeds original Brown Jr-powered model enough make bit vertical-fin-shy Bills tends want wander bit under power However fool thing glides just majestically SEC Y SHOWS TYPICAL FUSE X-SECTION NO SCALEWINGSPAN 123 INS CHORDI5 INS7 AIRFOILEIFFEL 400_____ POWER BROWN 60 CU INS PROPI4INSL NOTE FUSE FROM 4 MAIN LONGERONSSTRINGERS THEN PLANKED WING SPARS BUILT-UP LA TRUSS Ir THE NIMBUS DESIGNED BY Ben Shereshaw BUILT BY WALTER DICKINSON 50 Model Aviation Bill Schmidts Nimbusa Shereahaw design 1937 Graceful Covering black yellow silk Power OS 60 blackhead converted ignition gives plane rocketlike climb Doc loves its floating glide Bill simplified fuselage structure Span 114 Recognize Jim Homer enlarged Gold berg/Comet Interceptor Joe Percy photo now probably did 1937 Wanna bet wont last Nimbus seen SAM competition prolific Mr Shereshaw Ive mentioned previous occasions incredible man could produce publish designs such constricted time-frame Cumulus published September 1937 issue Flying Aces Nimbus appeared three months earlier mentioned before Model Airplane News Two months later Cloud Cruiser Flying Aces drawings Nimbus reveal just person could designs . built Walter Dickinson As mentioned another time Ben taught model-building class large department store era obvious designs done farm out projects youngsters classes certainly reflection times man else could youngsters have come up funds model building tough Depression times Id bet Ben took fee publication kids got keep models Sort neat setup dont think Mason-Dixon Line being written snowy nasty cold Sunday January 1987 Ijust visited some friends going Southwestern Regional Model Champs Buckeye AZ Franidy wish going also noticed King Orange held down sunny Florida last weekend will pardon little sermon Id like expound subject bothers Lets face people age Whats Doc Thirtynine RMcM live essentially sedentary Continued page 160 GATOR Makes Winner L 11613 TAIL 45 DELUX ALL 3MM UT An new Tiger Toil 120 four strokes piped 60 twa strokes beautiful performer foreompetitionorjustshowingofflAll balsa hit mochined wood ports complete hordwore poclioge tisot includes plug-in od justoble stob parts ond nem wing mounts Wing Spon -72 Wing Areo -860 sq Complete Delun Kit$15995 CASE An ineriperisse nuggro molded case protect erspensive transmtter both Sno stick single stick transmitters Brown leather gran witr aluminum trim ano locking caso $1395 See Your Dealer Order Direct Include $1 50 Per Item UPS GATOR R/C PRODUCTS 37t3 Pompano brine C Pensacola FL 35514 Phone 1904 4768639 PUI64N ADIUTADLI STA3 UT last stu can optimize stab incidence best Bight chreactenistics pair glass filled tryf adjusters ao nacladed IBM proside micro screna adjastmest smaller tromi tube Main tube alaminam mitt matcbng plienolic socket $695 WINS urn U@aiis Aluminuam alloytubrng plug-insmafl Included pair specat slip-fit phenofic sockets build tie miss muctsam Noh 6ZC modats 7/8 dia u 2 $ aa 2$995 1W dia 5 3$1495 momnims urn wing mounting system desieloped 86s Chidgey tiM t neM accurate stays tight Three rry4on keachets saemssand mactitnedannag blocks no included- $595 - MMK GAMUT Knstensen 0 aces Mety measure Aprdeadardeaceasused bylvai eto, eenatoranduddo-ttnow Sates guess wala os 0 5T inmngcutsnarpase Aqua tytod i J.r omp etc mfluctors 05 booliand arynag case $795 CS DGA DemignS DGADOmIgflS Os DGADesIgfltu se DGA Designie DGA Designs e C *DARNED GOOD AIRMEN Lightest weight Pilots Available B 0 * FULL BODY PILOT KIT L e ke V ny os ubber parts Easy osnemble tinish Kit oontains Pilot head hands boots helrriet 0 sCOP goggles toll teniplates andeasy instruCtionS Fullypositionable too.0 Height- Vight-NEW Low N-weeNo206-1/6 Scale 11s2 ozS790 No2051/5 Scale l4ia30z5951A\i/In No204-1/4 Scale 173a4 ozs gej SPORTSMAN BAR5STORMhR FULL BOOT OUST No205 —1/3 Scale 23 Oozte9 C *us PILOT KIT Liieiiim nnni nine iusbni trans 00 Kitnontains PiiOi neasi heiwni spoitnan nannies arri JacketEcun toennitnish5 assem SiB Height Vllght Low N-iseC 145 150 rcaie 3-i h 3 aoa5 595 No ion sScaie 3-75- i-i Oz5 6%h*,, PW OtOB- iaScaiea-ant-iZnz575simple No 05 t aStale5-na2-ians1490 re5ialrdC tt . ... . Aetosanulino realises . not ettalnebiC plestlos. C0 0 0 oOne ic extreme luSt weitni sui comphiinui tdi boctn Si trini Ch,stn oeii flaoe iitiie etteci iOn hailnion rani 0 Send sl00 Catalog B rk Slate FlesiBOntS asia 7* SaiCs tea. SCott check MO. COOS AtiOw 3 weeks sOenk niece B 0 DA Designs 50 OGA SO DGA Designs May1987 51 Tom Jozwiak converted 1915 twinpusher design Gas powerand RCi Note add vertical tins since doesnt have two big freewheeling props gave original its stability HIGH PERFORMANCE FLAP I iii 0 Get airborne FASTER & SAFER Z Izi~ Super Strong & Lightweight Sawias ng speed w hau sac tic rig pertartsance Usew h eec eta panesactvaet hate aft sw ch servo Fully adjustable hI airtoil tar easy installatiOn Readybuill comes complete instructions 5550 2 per pkg Send tar FREE Brachum Dealer Inquiries Invited &lcfdflte 19ila2 &n#%f Box 1962 Lawrence KS 66044 R/C Idle-Bar Glow Plugs Long Short Also.Only $189 Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson AssociateS PO Box 151aiUIiM Sine 1948 Wayne NJ CUTTING TOOLS BALSA STRIPPER Precision stripwood easy Master Airscrew BALSA STRIPPER Strips up 1/2 wide 1/4 thick can cut quickly accurately trom sheet stock ver nier wheel advances %2 per turn adjustment precise stripper comes standard type 11 hobby blade unconditionally guaranteed against failure five years S495 suggested retail Mco-*StabIe available dealer WINDSOR PROPELLER CO $7 $19 Some ships slso have Koku-Fan three-view drawings svailable Xerox copies three-views magazines other sources Bobs complete list over 400 Foto-Psaks available $2 plus long SASE address 2334 Ticonderoga Costa Mesa CA 92626 special arrangement Bob send long SASE address end column Ill send Xerox page contains Sailplanes Motor-Gliders Second International First US F3H Cross-Country Contest will sponsored Thousand Oaks Soaring Society TOSS July 9 through 12 event has both FAI AMA sanctions F3H rules will strictly followed site Taft CA weather advertised being hot very good lift annual contest TOSSbut first time American club has obtained FAI sanction full de scription F3H International events see Larry Jollys May 86 Model Aviation report First International Cross-Country contest held South Africa December 1985 Larry won contest nosed out Joe Wurts 1986 TOSS X-Country complete contest info write Chuck Griswold 1646 LaJolla Drive Thousand Oaks CA 91360 F3H Fanatics can warm up Second InterW1.i *sts 132 ea / RAZOR PLANE new Master Airserew RAZOR PLANE uses heavyduty industrial blade held place two locating screws allowing cutting depth set very rigidly accurately plane has variety uses ding smoothing contours fuselages cowlings shap ing edges thinning strips making custom-sized strip stock frame blade retainer made tough Lesan plastic should prove almost indestruc tible normal use$495 suggested retail 384 Tesconl Ct Santa Rosa CA 95401 national entering Santa Maria Soaring So cietys Seventh Annual X-Country June 6 7 single-launch event over 25-mile triangu lar course California Valley will big barbeque raffle Saturday night Contact Larry Turner 323 Noguera Place Arroyo Grande CA 93420 Third Annual Western US RC Soaring Championships will moved Merwin Ranch Modesto year Dates June 13 14 event growing countrys biggest decided Modesto way lodging dining did Courtland Also Modesto RC Club assuming responsibility whole shebang Get details Dave Darling 2705 Harvest Road Modesto CA 95355-3430 Byron Blakeslee 3134 Winnebago Dr Se dalia CO 80135 RC Aerobatics/Van Putte Continued page 49 promotional material Goldberg al ready catalogs printed about 2000 bound After about hundred phone calls between Hazel Dan Ueberman Goldberg conferring lawyers moans groans considerable con versation figured best thing could would sit back have good laugh must say have con troversy about name new product am glad Carl Goldberg Models Right off offered change name pull advertising Although both us well introductory programs felt would easier less expensive us change name product instead Now needed new name could continue introductory program Back fort hustled change catalogs resurrect already-sent magazine advertising tried conduct business normal Hazel Maxey boys job renaming new covering material finally came upon idea tying new covering material Supercoat Dope natural already decided match colors covering dope anyway So its back mundane ordinary life Sig have experimenting new cyanoacrylate glue lately need real good catchy name Maxey wandered other day suggested Ultra-Jet Hmm what think think people Sig Goldberg perfect examples fact treat everyone right maintain sense humor can make living hobby Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Old-Timers/Mathews Continued page 51 lives have absolutely no business out flying model airplanes three four days highheat/humidity weather tragic death such occurred last years SAM Champs points out too clearly such activities ill-advised types played tennis year round jogged some such regularly perhaps lesser hazard would present nature model-building activities us get littleif anyreally strenuous exercise such us go running around countryside heat summer chasing model airplanes truly fool hardy seems sort contest aimed old folks like us should placed south Continued page 162 NORTHEAST AEROD YNAMICS 61C LEBANON STREET ORD ME 04073 e 207-490-1881 TRAIN-AIR 20 TRAIN-AIR 40 SPORT-AIR 40 BEL-AIR 40 See local dealer call us referral 160 Model Aviation Leader Small Airfoil Technology MASTER AIRSCREW BEL-AIR 60 Mason-Dixon Line winter north summer farther north better distinctly recall getting rather alarmed seeing flushed faces gross perspiration short ness breath general fatigue observed SAM Champs held LaJunta CO flirting disaster West Texas turns out hot calm next July Tim Banazak mentioned concern SAM banquet put down because Having SAM Champs winter months would interfere school young people What young people Ive never seen school-age youngster compete SAM event matter us dont have school-age children just dont think objection valid point Id personally much rather use some vacation time observe fly SAM Champs held January Sun Belt half-kill myself heat summer about DeeB Mathews 909 MaizeRd Townhouse 734 Wichita KS 87212 RC Electrics/Kopski Continued page 53 came some quite firm lessons 1 Flying total darkness perfectly doable downright fun too hard modelers believe being 2 Gas flying total darkness mess full daylight 3 Electric motors pods can fly very well can also genuine paln photos show two highly successful Elec tric night fliers fact planes flew very well sorta self-evident rudderonlythey well-behaved Anyway motor/pods installed just front leading edge wing height just sufficient prop clearance installations tractor except Gas pusher thrust lines set zero down zero side models otherwise normal flatbottomed airfoil sections ranging thickness 10% 12% Wings typically set angle inci dence positive two three degrees stabs zero degrees Balance points classic 30-33% Wing loadings typically eight ounces Gas 10-11 oz Electric Flight 162 Model Aviation speed relatively slow rudder surfaces throws relatively large Andexcept couple radio-battery rundownsI never nighttime flight difficulty need go find plane over active period several years So dont recommend motors pods Strictly mechan ical/structural reasonsthe paln part story Electric motors comparatively heavy turns out experience cannot make pod strong enough hold up under normal flight usage relatively minor landing bump causes severe load pod/pylon structure damage same guaranteed fact beginning spent time repalring pods doing anything else finally reached point attached pod fuselage tongue-and-groove arranged friction slip-joint screwadjusted tightness allowed entire pod assembly pull free fuselage needed put motor/pod flailing about mode constrained motor wires did put stop continuing structural destruction reasons motors pod first place could install spotlight nose motor would normally minimize motor interfacing ground because landing altitude impossible judge total darkness So unless have no choice ie some extreme reason installing motor conventionally sug gest avoid Electric motors pods Structur ally theyre pain mysteries motors continue bewilder readers especially newer Electric model ers Last month column offered some thoughts about updating upgrading way model motors characterized described modelers could eventually easily insight understanding relate motor size plane size Now Id like offer some thoughts information about Electric motors general idea illustrate Electric life might have gathered motors instruction manual now modelers know typical model motor has iron housing containing Continued page 170 FLYING SCALE MODEL RIC PLANS Super Detail os Instruction Sheets Smith Plans 19163 Shadowood Dr Send SASE -Monument CO 80132
