WHA1 have column Safety written guy named Preston never heard him Such might thoughts of seeing new monthly addition pages Model Aviation regularly read AMA News section magazine may have noted several references safety recent issues Especially safety applies big models pylon racers safety committee chaired Homer Smith District XI AMA VP specifically established Executive Coun cil look size limitation big models general safety pylon racing column related activities safety committee nor its content confined particular branch model aircraft hobby month intend feature discussion safety issues will related some specific branch hobby also believe safety record may improve alerted mishaps fellow modelers may have resulted injury close call dont have product safety expert realize some types models inherently hazardous others doubt few among ranks have experienced some iype incident potential cause injury may have avoided someone exercising greater degree caution answer question John Preston Im modeler like yourselves got bitten bug age 11 years some 30 years ago Ive built types models last 10 years have concentrated efforts scale models mainly RC Sport Scale earn bread butter should say balsa epoxy working federal regulatory agency taking job writing column Im told have say what read will opinions necessarily employer However intend draw upon accident data feds have file illustrate relative safety hobby would also like stress despite back ground product safety Im no less immune accidents other modeler editor first approached about authoring column safety somewhat hesitant before responding affirmatively After number us might have hobby long enough experience enough inci dents sustain safety column few months continue indefinitely might monumental task solve problem finding material keep column going provide readers some graphic examples mishaps others appealing modelers write us tell us about experiences dont need elaborate essay just facts led incident associated safety hobby simpli task reporting incident suggest following information should possible included Brief description what happened injury resulted state type injury whether treatment doctor hospital emer gency room required Any special circumstances leading up incident Age people involved known whether non-modelers involved number years hobby modelers involved Any special environmental considerations weather layout flying site etc conclusions incident could have avoided As additional guide type incidents about seeking information SAFEIIT COMES FIRST daily environment abounds things can cause mis hapsthe airmodel ing hobby/sport no exception issue begins monthly se ries man trade safety John Preston will featured future months column following come mind Hazards associated propellers spinners etc Safe operation CL modelselectrocution hazard line strength etc Safety rules RC club flying field Hazards associated gasoline fuel model engines Big model safety Toxicity paints glues Pylon racing safety Free-flight model safety Safe construction methods equipment installation RC models have other suggestions questions safety related subjects would like see discussed please let us know principle purpose column prevent accidents believe openly discussing past incidents may have resulted some form injury illness readers will learn mistakes others perhaps avoid hazardous situations practices will discuss accidents currently subject litigationfor obvious reasons Neither will publish names people clubs involved Brand names products will generally omitted unless discover something constitutes substantial hazard about believe modeling public should informed As probably might guess number accidents caused defective hazardous products small compared number caused carelessness person also true non-modeling accidents best example would traffic accidents give some idea safe hobby compared other recreational pursuits going draw some data published Consumer Product Safety Commission Since model airplane hobby has frequently touted being greater golf lets compare two Would believe according CPSC golf hazardous sport flying model airplanes March 1979 CPSC published its latest Age Adjusted Frequency Severity Index Rank list products within its jurisdiction ranked according frequency severity injuries associated Golf number 47 list model airplanes number 172 Before get lulled false sense security perhaps should point out data used come up rank golf included accidents involving golf carts annual national estimate injuries associa ted golf carts almost three times estimate injuries associated gasoline otherfuel powered models So play golf exercise dont use electric cart probably lot less likely sustain injury play fuel-powered models Another statistic comes courtesy CPSC tells us 199% injuries associ ated fuel-powered models treated hospital emergency rooms end up victim being hospitalized Thats very high percentage compared just about other product So perhaps things we shouldnt want avoid injury Hopefully column can alert some hazardous practices have led injury near injury fellow modelers thereby prevent some grief ourselves conclude first column rather discuss single safety related incident depth will let ponder list incidents know have happened some have scant details others have beeh reported detail may completely described future columns modeler died adjusting 60-size engine turning carbon fiber propeller blades came off severing aorta modeler got shock life wire-controlled model airplane hit 23000 volt electric transmission wires knocked least three feet air left deep handprint plastic control handle burned holes palm soles feet socks shoes know seven other similar incidents modeler did survive modeler hurrying finish airplane using balsa knife working fuselage supported lap knife apparently slipped caused laceration bled death modeler starting chain-saw engine powered model usual method flip ping prop right hand restraining model left hand took 15 stitches close laceration forearm caused prop forgot props swing through significantly larger diameter arc conven tional glo engines Two rubber-powered model enthusiasts winding model standing Continued page 114 24 Model Aviation Maybe could have new muffler rule specify type mufflerthat Art uses very effective No muffler would able fly field Without dissenting vote might able Maybe can halt helicopter flying field 9 11 am Sunday can done What have trying say order let feelings known have speak out what better place meeting says club clubs matter Ron Van Putte 12 Connie Drive Shalimar FL 32579 Safety First/Preston continued tram page 24 bleachers surrounding ball field fellow holding model fell over edge bleachers after struck stomach chuck drill being used winder inadvertently became de tached Fortunately no serious injury sustained Some incidents no injury resulted can quite amusing However cause serious injury death can shocking gruesome have no doubt some derogatory comments will result col umn hope readers will appreci ate efforts make think twice before repeating hazardous practice have described thereby avoid sometimes dire consequences column full-scale aircraft magazine Flying titled Learned About Flying Can learn something about model flying column hope John Preston 7012 Elvira Court Falls Church VA 22042 RC Soaring/Pruss continued page 27 Average weights models three tasks follows based statisti cal data supplied contestants before contest some weights may have varied during actual competition Average weight top seven scorers vs average fliers Duration 1629 kg vs 1606 kg Distance 1837 kg vs 1612 kg Speed 2203 kg vs 2343 kg Average wing loadings Duration 3115 kg/sq m vs 2664 kg/sq m Distance 375 kg/sq m vs 267 kg sq m Speed 43 kg/sq m vs 3885 kg/sq m Austrians Dassels within grams other six models two per flier Probably im pressive things after week practice watching Austrian team use plane three fllers see team process six brand new birdsnever flown contest opposite end design spectrum South Africans built-up wings least two plywoodbalsa fuselages Both teams fought out first place South Africans winning team honors fraction percentage point Austrian Wackerle won individual honors similar slim margin Another contrast involving two top teams Austria hand-towed exclusively South Africans used winch Inci dentally latter group effective drum brake consisting bicycle rear wheel sprocket attached side drum An arm small section bi cycle chain flipped up allow line re trieval engaged sprocket launching progress Line could taken inch could let out Pagliano Italy Allure head-turner whenever appeared fly party interesting side note South Africa two years ago Pagliano tore up hori zontal stab looked like something bor rowed Wakefield model least seemed because fragile-like stab contrasted foam glass wing fiberglass fuselage time Any way Skip Miller repaired stab Pagli ano using MonoKote two became fast friends first person Pagliano visited Belginm Skip show him Mono Koted Allure What interesting Allure its built-up wing stab such de parture other European designs first time speed course turned 106-second run Lack flying experience Paglianos own admissionprevented Allure placing better model selected carrying current state-of-the-art nth degree still maintaining overall appearance full-scale sailplane would Deckers Germany Spending nearly 1700 man-hours wing mold alone indicates degree precision perfection Decker teammates put model construction time necessary world class competition Look 114 Model Aviation Scale Plans GEE BEE Z1932 GEE BEE- Ri 00 2 00 Both used GRANGER WILLIAMS 1932 HALL RACER /2 3 span t Scale MONOCOUPE 110 1940 Culver Cadet Clip-wing 21$10 1 00 Const parts plotted plans established scale accuracy de tailAdd own system form flight desired POST PAID Vein Clements Box 608 CaIdwell Idaho 83605 lilt WSIUN UAIAFiLL C ALL UIHtCIIUNS Heres equipmant need give props Toe very nest balance--balance e directions Carefully crafted top grade materials BUBBLE BALANCEII accomodates 3/161/49/32 prop holes lkher Szes avallaltle special order Dealers invited $1495 Add $150 HOWARD B HUEBL SEPT ODS stage handling hi Mien add 4% sales ba ie COOs Box 1 Route 4 Manlcato Mn 561 writing advertisers mention read about Model Aviation rORLINE RICS NEWEST CREATION DEWEYVILLE SPECIAL Trainer FOKKER DV1 1 Kit 0L781 $9750 Retail SEE YOUR DEALER OR DER DIRECT POST-PAID Dealer & Distributor Inquiries Invited Totally New Design Wing Aileron Permits OneNight Assembly 74 Wing Span 12 Consistance Chord Clark Y Wing Total Wing Area 864 Sq Plus Lifting Stab Quick Construction Box Fuselage Die-Cut Formers o Fool proof wing set-up use jigs accomplish ed pre-bent piece cabanas Vstruts fit pre-dadoed pre-drilled hardwood blocks thus eliminating special alignment o With 60 engine ailerons set minimum throw plane very docile trainer o With 60 engine ailerons set maximum throw plane handles like pattern ship will deliver thrills advanced R/C er iIlfrtd td M1 &hhi CI Pi~M H,od & hi. Pt eii, Rdm Pbg q SOPWITH PUP Kit 0L792 $11995 Retail C ORLINE R/O INC P0 Box 12725 Salem OR 97309 Tel 503 792 --3627 standings top six Second through sixth less 4% top score looked down 10th place Gerneke South Africa less 8% first place Four out 10 top planes what could call conventional construction Spavins South Africa finished third less 2% away World Championship title drawback plane its inablllty carry enough ballast needed wasnt structural defici ency merely model limited ballast space Wing ballast tubes could solve problem What does mean next breed US planes expect competitive FAI World Championships Well its hard criticize perfection glass-cov ered foam Eppler 193 airfoils within 1/100th millimeter what good doctor designed especially youre shaping leading edge sanding block template have ask yourself 1600-plus hours spent wing mold could take 100 hours enoughand build conventional wing use remaining 15 00 hours practice would lessthan-perfect plane much disad vantage After sifting analyzing scores US team still feels merit latter approach thing certain balsa dead Next month well wrap up article ideas can use sailplane build fly along some flying tech niques used top fliers Late item Dave Peltz secretary San Fernando Valley Silent Flyers has announced Two-Meter international event scheduled January 19-20 1980 event will Two-Meter designs will involve speed distance duration tasks nounced further information write 2-Meter World Cup Doug Ford 18630 Nau Ave Northridge CA 91326 USA call Doug Ford 213 360-6213 Sam Brown 805 9424956 event co-spon sored SFVSF Antelope Valley Soaring Association Dan Pruss Rt 2 Box 490 Plainfield IL 60S44 RC Scale/Wischers continued page 28 Both bronze aluminum powders have property makes very desireable model finishing flakes overlap form continuous film applied very thin layer minimum weight added As example one-ounce vial bronze powder mixed thin dope will easily cover fivefoot-span model coat no evidence transparency lightweight finish Aluminum powder will same job less weight Because bronze powder heavier suspended thin dope must stirred well before spraying settles quickly matter fineness finish has point contention among scale modelers ages Microscopic exanunation hand-rubbed finish will show presence minute scratches formed abrasive rubbing compound Shouldnt 1/5-scale model have scratches 1/5 size prototype Wouldnt December1979 115 Os Pi, ABS Cml KIT ALSO 040 5so& Tsi Acite Cpy INCLUDES Ai,m Ldig Os. fr,kd fll 5isd 51W P1. TWO MORE GREAT VALUES FROM ORLINE Old Ignition Trade-in Buy sell old time ignition engines Box up what have send us honest appraisal could worth new proportional set have engines can also start collection welcome built-up airplanes used proportionals old time ignition engines Come trade us lop dollar paid K- Custom-Wit-RIC Built Order Rons Ka stock choose PIpe Td-Pocr Quarter-Scole 69 wIngspan 42 Sq Ft derailed plans $1699 PP Send $100 self addressed stamped envelope detailed list I3ullt-Up R/C Models 50% Sole Hobby Capitol Distilbutors 46 N Oak St Ventura CA 93001 Ftione 805 642-8465 / 643-7616
Edition: Model Aviation - 1979/12
Page Numbers: 24, 114, 115
WHA1 have column Safety written guy named Preston never heard him Such might thoughts of seeing new monthly addition pages Model Aviation regularly read AMA News section magazine may have noted several references safety recent issues Especially safety applies big models pylon racers safety committee chaired Homer Smith District XI AMA VP specifically established Executive Coun cil look size limitation big models general safety pylon racing column related activities safety committee nor its content confined particular branch model aircraft hobby month intend feature discussion safety issues will related some specific branch hobby also believe safety record may improve alerted mishaps fellow modelers may have resulted injury close call dont have product safety expert realize some types models inherently hazardous others doubt few among ranks have experienced some iype incident potential cause injury may have avoided someone exercising greater degree caution answer question John Preston Im modeler like yourselves got bitten bug age 11 years some 30 years ago Ive built types models last 10 years have concentrated efforts scale models mainly RC Sport Scale earn bread butter should say balsa epoxy working federal regulatory agency taking job writing column Im told have say what read will opinions necessarily employer However intend draw upon accident data feds have file illustrate relative safety hobby would also like stress despite back ground product safety Im no less immune accidents other modeler editor first approached about authoring column safety somewhat hesitant before responding affirmatively After number us might have hobby long enough experience enough inci dents sustain safety column few months continue indefinitely might monumental task solve problem finding material keep column going provide readers some graphic examples mishaps others appealing modelers write us tell us about experiences dont need elaborate essay just facts led incident associated safety hobby simpli task reporting incident suggest following information should possible included Brief description what happened injury resulted state type injury whether treatment doctor hospital emer gency room required Any special circumstances leading up incident Age people involved known whether non-modelers involved number years hobby modelers involved Any special environmental considerations weather layout flying site etc conclusions incident could have avoided As additional guide type incidents about seeking information SAFEIIT COMES FIRST daily environment abounds things can cause mis hapsthe airmodel ing hobby/sport no exception issue begins monthly se ries man trade safety John Preston will featured future months column following come mind Hazards associated propellers spinners etc Safe operation CL modelselectrocution hazard line strength etc Safety rules RC club flying field Hazards associated gasoline fuel model engines Big model safety Toxicity paints glues Pylon racing safety Free-flight model safety Safe construction methods equipment installation RC models have other suggestions questions safety related subjects would like see discussed please let us know principle purpose column prevent accidents believe openly discussing past incidents may have resulted some form injury illness readers will learn mistakes others perhaps avoid hazardous situations practices will discuss accidents currently subject litigationfor obvious reasons Neither will publish names people clubs involved Brand names products will generally omitted unless discover something constitutes substantial hazard about believe modeling public should informed As probably might guess number accidents caused defective hazardous products small compared number caused carelessness person also true non-modeling accidents best example would traffic accidents give some idea safe hobby compared other recreational pursuits going draw some data published Consumer Product Safety Commission Since model airplane hobby has frequently touted being greater golf lets compare two Would believe according CPSC golf hazardous sport flying model airplanes March 1979 CPSC published its latest Age Adjusted Frequency Severity Index Rank list products within its jurisdiction ranked according frequency severity injuries associated Golf number 47 list model airplanes number 172 Before get lulled false sense security perhaps should point out data used come up rank golf included accidents involving golf carts annual national estimate injuries associa ted golf carts almost three times estimate injuries associated gasoline otherfuel powered models So play golf exercise dont use electric cart probably lot less likely sustain injury play fuel-powered models Another statistic comes courtesy CPSC tells us 199% injuries associ ated fuel-powered models treated hospital emergency rooms end up victim being hospitalized Thats very high percentage compared just about other product So perhaps things we shouldnt want avoid injury Hopefully column can alert some hazardous practices have led injury near injury fellow modelers thereby prevent some grief ourselves conclude first column rather discuss single safety related incident depth will let ponder list incidents know have happened some have scant details others have beeh reported detail may completely described future columns modeler died adjusting 60-size engine turning carbon fiber propeller blades came off severing aorta modeler got shock life wire-controlled model airplane hit 23000 volt electric transmission wires knocked least three feet air left deep handprint plastic control handle burned holes palm soles feet socks shoes know seven other similar incidents modeler did survive modeler hurrying finish airplane using balsa knife working fuselage supported lap knife apparently slipped caused laceration bled death modeler starting chain-saw engine powered model usual method flip ping prop right hand restraining model left hand took 15 stitches close laceration forearm caused prop forgot props swing through significantly larger diameter arc conven tional glo engines Two rubber-powered model enthusiasts winding model standing Continued page 114 24 Model Aviation Maybe could have new muffler rule specify type mufflerthat Art uses very effective No muffler would able fly field Without dissenting vote might able Maybe can halt helicopter flying field 9 11 am Sunday can done What have trying say order let feelings known have speak out what better place meeting says club clubs matter Ron Van Putte 12 Connie Drive Shalimar FL 32579 Safety First/Preston continued tram page 24 bleachers surrounding ball field fellow holding model fell over edge bleachers after struck stomach chuck drill being used winder inadvertently became de tached Fortunately no serious injury sustained Some incidents no injury resulted can quite amusing However cause serious injury death can shocking gruesome have no doubt some derogatory comments will result col umn hope readers will appreci ate efforts make think twice before repeating hazardous practice have described thereby avoid sometimes dire consequences column full-scale aircraft magazine Flying titled Learned About Flying Can learn something about model flying column hope John Preston 7012 Elvira Court Falls Church VA 22042 RC Soaring/Pruss continued page 27 Average weights models three tasks follows based statisti cal data supplied contestants before contest some weights may have varied during actual competition Average weight top seven scorers vs average fliers Duration 1629 kg vs 1606 kg Distance 1837 kg vs 1612 kg Speed 2203 kg vs 2343 kg Average wing loadings Duration 3115 kg/sq m vs 2664 kg/sq m Distance 375 kg/sq m vs 267 kg sq m Speed 43 kg/sq m vs 3885 kg/sq m Austrians Dassels within grams other six models two per flier Probably im pressive things after week practice watching Austrian team use plane three fllers see team process six brand new birdsnever flown contest opposite end design spectrum South Africans built-up wings least two plywoodbalsa fuselages Both teams fought out first place South Africans winning team honors fraction percentage point Austrian Wackerle won individual honors similar slim margin Another contrast involving two top teams Austria hand-towed exclusively South Africans used winch Inci dentally latter group effective drum brake consisting bicycle rear wheel sprocket attached side drum An arm small section bi cycle chain flipped up allow line re trieval engaged sprocket launching progress Line could taken inch could let out Pagliano Italy Allure head-turner whenever appeared fly party interesting side note South Africa two years ago Pagliano tore up hori zontal stab looked like something bor rowed Wakefield model least seemed because fragile-like stab contrasted foam glass wing fiberglass fuselage time Any way Skip Miller repaired stab Pagli ano using MonoKote two became fast friends first person Pagliano visited Belginm Skip show him Mono Koted Allure What interesting Allure its built-up wing stab such de parture other European designs first time speed course turned 106-second run Lack flying experience Paglianos own admissionprevented Allure placing better model selected carrying current state-of-the-art nth degree still maintaining overall appearance full-scale sailplane would Deckers Germany Spending nearly 1700 man-hours wing mold alone indicates degree precision perfection Decker teammates put model construction time necessary world class competition Look 114 Model Aviation Scale Plans GEE BEE Z1932 GEE BEE- Ri 00 2 00 Both used GRANGER WILLIAMS 1932 HALL RACER /2 3 span t Scale MONOCOUPE 110 1940 Culver Cadet Clip-wing 21$10 1 00 Const parts plotted plans established scale accuracy de tailAdd own system form flight desired POST PAID Vein Clements Box 608 CaIdwell Idaho 83605 lilt WSIUN UAIAFiLL C ALL UIHtCIIUNS Heres equipmant need give props Toe very nest balance--balance e directions Carefully crafted top grade materials BUBBLE BALANCEII accomodates 3/161/49/32 prop holes lkher Szes avallaltle special order Dealers invited $1495 Add $150 HOWARD B HUEBL SEPT ODS stage handling hi Mien add 4% sales ba ie COOs Box 1 Route 4 Manlcato Mn 561 writing advertisers mention read about Model Aviation rORLINE RICS NEWEST CREATION DEWEYVILLE SPECIAL Trainer FOKKER DV1 1 Kit 0L781 $9750 Retail SEE YOUR DEALER OR DER DIRECT POST-PAID Dealer & Distributor Inquiries Invited Totally New Design Wing Aileron Permits OneNight Assembly 74 Wing Span 12 Consistance Chord Clark Y Wing Total Wing Area 864 Sq Plus Lifting Stab Quick Construction Box Fuselage Die-Cut Formers o Fool proof wing set-up use jigs accomplish ed pre-bent piece cabanas Vstruts fit pre-dadoed pre-drilled hardwood blocks thus eliminating special alignment o With 60 engine ailerons set minimum throw plane very docile trainer o With 60 engine ailerons set maximum throw plane handles like pattern ship will deliver thrills advanced R/C er iIlfrtd td M1 &hhi CI Pi~M H,od & hi. Pt eii, Rdm Pbg q SOPWITH PUP Kit 0L792 $11995 Retail C ORLINE R/O INC P0 Box 12725 Salem OR 97309 Tel 503 792 --3627 standings top six Second through sixth less 4% top score looked down 10th place Gerneke South Africa less 8% first place Four out 10 top planes what could call conventional construction Spavins South Africa finished third less 2% away World Championship title drawback plane its inablllty carry enough ballast needed wasnt structural defici ency merely model limited ballast space Wing ballast tubes could solve problem What does mean next breed US planes expect competitive FAI World Championships Well its hard criticize perfection glass-cov ered foam Eppler 193 airfoils within 1/100th millimeter what good doctor designed especially youre shaping leading edge sanding block template have ask yourself 1600-plus hours spent wing mold could take 100 hours enoughand build conventional wing use remaining 15 00 hours practice would lessthan-perfect plane much disad vantage After sifting analyzing scores US team still feels merit latter approach thing certain balsa dead Next month well wrap up article ideas can use sailplane build fly along some flying tech niques used top fliers Late item Dave Peltz secretary San Fernando Valley Silent Flyers has announced Two-Meter international event scheduled January 19-20 1980 event will Two-Meter designs will involve speed distance duration tasks nounced further information write 2-Meter World Cup Doug Ford 18630 Nau Ave Northridge CA 91326 USA call Doug Ford 213 360-6213 Sam Brown 805 9424956 event co-spon sored SFVSF Antelope Valley Soaring Association Dan Pruss Rt 2 Box 490 Plainfield IL 60S44 RC Scale/Wischers continued page 28 Both bronze aluminum powders have property makes very desireable model finishing flakes overlap form continuous film applied very thin layer minimum weight added As example one-ounce vial bronze powder mixed thin dope will easily cover fivefoot-span model coat no evidence transparency lightweight finish Aluminum powder will same job less weight Because bronze powder heavier suspended thin dope must stirred well before spraying settles quickly matter fineness finish has point contention among scale modelers ages Microscopic exanunation hand-rubbed finish will show presence minute scratches formed abrasive rubbing compound Shouldnt 1/5-scale model have scratches 1/5 size prototype Wouldnt December1979 115 Os Pi, ABS Cml KIT ALSO 040 5so& Tsi Acite Cpy INCLUDES Ai,m Ldig Os. fr,kd fll 5isd 51W P1. TWO MORE GREAT VALUES FROM ORLINE Old Ignition Trade-in Buy sell old time ignition engines Box up what have send us honest appraisal could worth new proportional set have engines can also start collection welcome built-up airplanes used proportionals old time ignition engines Come trade us lop dollar paid K- Custom-Wit-RIC Built Order Rons Ka stock choose PIpe Td-Pocr Quarter-Scole 69 wIngspan 42 Sq Ft derailed plans $1699 PP Send $100 self addressed stamped envelope detailed list I3ullt-Up R/C Models 50% Sole Hobby Capitol Distilbutors 46 N Oak St Ventura CA 93001 Ftione 805 642-8465 / 643-7616
Edition: Model Aviation - 1979/12
Page Numbers: 24, 114, 115
WHA1 have column Safety written guy named Preston never heard him Such might thoughts of seeing new monthly addition pages Model Aviation regularly read AMA News section magazine may have noted several references safety recent issues Especially safety applies big models pylon racers safety committee chaired Homer Smith District XI AMA VP specifically established Executive Coun cil look size limitation big models general safety pylon racing column related activities safety committee nor its content confined particular branch model aircraft hobby month intend feature discussion safety issues will related some specific branch hobby also believe safety record may improve alerted mishaps fellow modelers may have resulted injury close call dont have product safety expert realize some types models inherently hazardous others doubt few among ranks have experienced some iype incident potential cause injury may have avoided someone exercising greater degree caution answer question John Preston Im modeler like yourselves got bitten bug age 11 years some 30 years ago Ive built types models last 10 years have concentrated efforts scale models mainly RC Sport Scale earn bread butter should say balsa epoxy working federal regulatory agency taking job writing column Im told have say what read will opinions necessarily employer However intend draw upon accident data feds have file illustrate relative safety hobby would also like stress despite back ground product safety Im no less immune accidents other modeler editor first approached about authoring column safety somewhat hesitant before responding affirmatively After number us might have hobby long enough experience enough inci dents sustain safety column few months continue indefinitely might monumental task solve problem finding material keep column going provide readers some graphic examples mishaps others appealing modelers write us tell us about experiences dont need elaborate essay just facts led incident associated safety hobby simpli task reporting incident suggest following information should possible included Brief description what happened injury resulted state type injury whether treatment doctor hospital emer gency room required Any special circumstances leading up incident Age people involved known whether non-modelers involved number years hobby modelers involved Any special environmental considerations weather layout flying site etc conclusions incident could have avoided As additional guide type incidents about seeking information SAFEIIT COMES FIRST daily environment abounds things can cause mis hapsthe airmodel ing hobby/sport no exception issue begins monthly se ries man trade safety John Preston will featured future months column following come mind Hazards associated propellers spinners etc Safe operation CL modelselectrocution hazard line strength etc Safety rules RC club flying field Hazards associated gasoline fuel model engines Big model safety Toxicity paints glues Pylon racing safety Free-flight model safety Safe construction methods equipment installation RC models have other suggestions questions safety related subjects would like see discussed please let us know principle purpose column prevent accidents believe openly discussing past incidents may have resulted some form injury illness readers will learn mistakes others perhaps avoid hazardous situations practices will discuss accidents currently subject litigationfor obvious reasons Neither will publish names people clubs involved Brand names products will generally omitted unless discover something constitutes substantial hazard about believe modeling public should informed As probably might guess number accidents caused defective hazardous products small compared number caused carelessness person also true non-modeling accidents best example would traffic accidents give some idea safe hobby compared other recreational pursuits going draw some data published Consumer Product Safety Commission Since model airplane hobby has frequently touted being greater golf lets compare two Would believe according CPSC golf hazardous sport flying model airplanes March 1979 CPSC published its latest Age Adjusted Frequency Severity Index Rank list products within its jurisdiction ranked according frequency severity injuries associated Golf number 47 list model airplanes number 172 Before get lulled false sense security perhaps should point out data used come up rank golf included accidents involving golf carts annual national estimate injuries associa ted golf carts almost three times estimate injuries associated gasoline otherfuel powered models So play golf exercise dont use electric cart probably lot less likely sustain injury play fuel-powered models Another statistic comes courtesy CPSC tells us 199% injuries associ ated fuel-powered models treated hospital emergency rooms end up victim being hospitalized Thats very high percentage compared just about other product So perhaps things we shouldnt want avoid injury Hopefully column can alert some hazardous practices have led injury near injury fellow modelers thereby prevent some grief ourselves conclude first column rather discuss single safety related incident depth will let ponder list incidents know have happened some have scant details others have beeh reported detail may completely described future columns modeler died adjusting 60-size engine turning carbon fiber propeller blades came off severing aorta modeler got shock life wire-controlled model airplane hit 23000 volt electric transmission wires knocked least three feet air left deep handprint plastic control handle burned holes palm soles feet socks shoes know seven other similar incidents modeler did survive modeler hurrying finish airplane using balsa knife working fuselage supported lap knife apparently slipped caused laceration bled death modeler starting chain-saw engine powered model usual method flip ping prop right hand restraining model left hand took 15 stitches close laceration forearm caused prop forgot props swing through significantly larger diameter arc conven tional glo engines Two rubber-powered model enthusiasts winding model standing Continued page 114 24 Model Aviation Maybe could have new muffler rule specify type mufflerthat Art uses very effective No muffler would able fly field Without dissenting vote might able Maybe can halt helicopter flying field 9 11 am Sunday can done What have trying say order let feelings known have speak out what better place meeting says club clubs matter Ron Van Putte 12 Connie Drive Shalimar FL 32579 Safety First/Preston continued tram page 24 bleachers surrounding ball field fellow holding model fell over edge bleachers after struck stomach chuck drill being used winder inadvertently became de tached Fortunately no serious injury sustained Some incidents no injury resulted can quite amusing However cause serious injury death can shocking gruesome have no doubt some derogatory comments will result col umn hope readers will appreci ate efforts make think twice before repeating hazardous practice have described thereby avoid sometimes dire consequences column full-scale aircraft magazine Flying titled Learned About Flying Can learn something about model flying column hope John Preston 7012 Elvira Court Falls Church VA 22042 RC Soaring/Pruss continued page 27 Average weights models three tasks follows based statisti cal data supplied contestants before contest some weights may have varied during actual competition Average weight top seven scorers vs average fliers Duration 1629 kg vs 1606 kg Distance 1837 kg vs 1612 kg Speed 2203 kg vs 2343 kg Average wing loadings Duration 3115 kg/sq m vs 2664 kg/sq m Distance 375 kg/sq m vs 267 kg sq m Speed 43 kg/sq m vs 3885 kg/sq m Austrians Dassels within grams other six models two per flier Probably im pressive things after week practice watching Austrian team use plane three fllers see team process six brand new birdsnever flown contest opposite end design spectrum South Africans built-up wings least two plywoodbalsa fuselages Both teams fought out first place South Africans winning team honors fraction percentage point Austrian Wackerle won individual honors similar slim margin Another contrast involving two top teams Austria hand-towed exclusively South Africans used winch Inci dentally latter group effective drum brake consisting bicycle rear wheel sprocket attached side drum An arm small section bi cycle chain flipped up allow line re trieval engaged sprocket launching progress Line could taken inch could let out Pagliano Italy Allure head-turner whenever appeared fly party interesting side note South Africa two years ago Pagliano tore up hori zontal stab looked like something bor rowed Wakefield model least seemed because fragile-like stab contrasted foam glass wing fiberglass fuselage time Any way Skip Miller repaired stab Pagli ano using MonoKote two became fast friends first person Pagliano visited Belginm Skip show him Mono Koted Allure What interesting Allure its built-up wing stab such de parture other European designs first time speed course turned 106-second run Lack flying experience Paglianos own admissionprevented Allure placing better model selected carrying current state-of-the-art nth degree still maintaining overall appearance full-scale sailplane would Deckers Germany Spending nearly 1700 man-hours wing mold alone indicates degree precision perfection Decker teammates put model construction time necessary world class competition Look 114 Model Aviation Scale Plans GEE BEE Z1932 GEE BEE- Ri 00 2 00 Both used GRANGER WILLIAMS 1932 HALL RACER /2 3 span t Scale MONOCOUPE 110 1940 Culver Cadet Clip-wing 21$10 1 00 Const parts plotted plans established scale accuracy de tailAdd own system form flight desired POST PAID Vein Clements Box 608 CaIdwell Idaho 83605 lilt WSIUN UAIAFiLL C ALL UIHtCIIUNS Heres equipmant need give props Toe very nest balance--balance e directions Carefully crafted top grade materials BUBBLE BALANCEII accomodates 3/161/49/32 prop holes lkher Szes avallaltle special order Dealers invited $1495 Add $150 HOWARD B HUEBL SEPT ODS stage handling hi Mien add 4% sales ba ie COOs Box 1 Route 4 Manlcato Mn 561 writing advertisers mention read about Model Aviation rORLINE RICS NEWEST CREATION DEWEYVILLE SPECIAL Trainer FOKKER DV1 1 Kit 0L781 $9750 Retail SEE YOUR DEALER OR DER DIRECT POST-PAID Dealer & Distributor Inquiries Invited Totally New Design Wing Aileron Permits OneNight Assembly 74 Wing Span 12 Consistance Chord Clark Y Wing Total Wing Area 864 Sq Plus Lifting Stab Quick Construction Box Fuselage Die-Cut Formers o Fool proof wing set-up use jigs accomplish ed pre-bent piece cabanas Vstruts fit pre-dadoed pre-drilled hardwood blocks thus eliminating special alignment o With 60 engine ailerons set minimum throw plane very docile trainer o With 60 engine ailerons set maximum throw plane handles like pattern ship will deliver thrills advanced R/C er iIlfrtd td M1 &hhi CI Pi~M H,od & hi. Pt eii, Rdm Pbg q SOPWITH PUP Kit 0L792 $11995 Retail C ORLINE R/O INC P0 Box 12725 Salem OR 97309 Tel 503 792 --3627 standings top six Second through sixth less 4% top score looked down 10th place Gerneke South Africa less 8% first place Four out 10 top planes what could call conventional construction Spavins South Africa finished third less 2% away World Championship title drawback plane its inablllty carry enough ballast needed wasnt structural defici ency merely model limited ballast space Wing ballast tubes could solve problem What does mean next breed US planes expect competitive FAI World Championships Well its hard criticize perfection glass-cov ered foam Eppler 193 airfoils within 1/100th millimeter what good doctor designed especially youre shaping leading edge sanding block template have ask yourself 1600-plus hours spent wing mold could take 100 hours enoughand build conventional wing use remaining 15 00 hours practice would lessthan-perfect plane much disad vantage After sifting analyzing scores US team still feels merit latter approach thing certain balsa dead Next month well wrap up article ideas can use sailplane build fly along some flying tech niques used top fliers Late item Dave Peltz secretary San Fernando Valley Silent Flyers has announced Two-Meter international event scheduled January 19-20 1980 event will Two-Meter designs will involve speed distance duration tasks nounced further information write 2-Meter World Cup Doug Ford 18630 Nau Ave Northridge CA 91326 USA call Doug Ford 213 360-6213 Sam Brown 805 9424956 event co-spon sored SFVSF Antelope Valley Soaring Association Dan Pruss Rt 2 Box 490 Plainfield IL 60S44 RC Scale/Wischers continued page 28 Both bronze aluminum powders have property makes very desireable model finishing flakes overlap form continuous film applied very thin layer minimum weight added As example one-ounce vial bronze powder mixed thin dope will easily cover fivefoot-span model coat no evidence transparency lightweight finish Aluminum powder will same job less weight Because bronze powder heavier suspended thin dope must stirred well before spraying settles quickly matter fineness finish has point contention among scale modelers ages Microscopic exanunation hand-rubbed finish will show presence minute scratches formed abrasive rubbing compound Shouldnt 1/5-scale model have scratches 1/5 size prototype Wouldnt December1979 115 Os Pi, ABS Cml KIT ALSO 040 5so& Tsi Acite Cpy INCLUDES Ai,m Ldig Os. fr,kd fll 5isd 51W P1. TWO MORE GREAT VALUES FROM ORLINE Old Ignition Trade-in Buy sell old time ignition engines Box up what have send us honest appraisal could worth new proportional set have engines can also start collection welcome built-up airplanes used proportionals old time ignition engines Come trade us lop dollar paid K- Custom-Wit-RIC Built Order Rons Ka stock choose PIpe Td-Pocr Quarter-Scole 69 wIngspan 42 Sq Ft derailed plans $1699 PP Send $100 self addressed stamped envelope detailed list I3ullt-Up R/C Models 50% Sole Hobby Capitol Distilbutors 46 N Oak St Ventura CA 93001 Ftione 805 642-8465 / 643-7616