Gary Shaw SECURE THOSE TAIL FEATHERS talking Giant Scale modeler recently asked would again remind fly big models make sure craft properly secured prior starting particular appeal comes heels accident occurred secured Giant Scale tail-dragger tilted forward onto hands modeler started flightline table front wheels craft sandbagged prevent movement model tabletop However once model started rush air over tailplane lifted rear model air modeler hands resting table under prop model suddenly tilted forward wasnt able move hands away prop time avoid serious injury After $5000 corrective hand surgery lessons learned became painfully simple Have someone hold model never fly alone someone holding airplane accident probably wouldnt have occurred airplane started ground unsuspecting hands might have resting table below prop arc Giant Scale props sometimes several feet diameter start airplane waist-high table its nearly impossible safely reach over around due table height size prop arc Theres nothing exciting wall whirling prop launching itself head tabletop Oh what fun youve never experienced power Giant Scale model visit flying field ask can hold place its powered up Ive never able keep completely still its being throttled up down always moves back forth several inches Hold place ground few minutes full power youll quickly develop degree respect will keep body parts intact Just reminder Blade Container Model Tips section Cascade Model Helicopter Club newsletter Heli News edited Dick McKenna comes following advice regarding used knife blades Avoid getting cut discarded knife blades working shop Keep small jar around has small slit top lid As old blades become dull can safely drop jar May1996 29 p C disposal storage desire resharpen Safety Paints Solvents During past few years Ive spent considerable amount time researching writing columns about using paints glues solvents safely workshop Although attempts present information seemed thorough time few previous columns seem flow information quite well Paint Safety article recently read March 1995 issue Belleville RC Flyers newsletter Transmitter edited Darwin L Evelsizer piece titled Safety Information Regarding Paints written David Dale Houston Texas youre folks getting ready lay coat paint latest project review following might order Youre absolutely correct concerns about safety paints general two-part paints capable catalyzing lungscoating alveoli suffocating little hospital can someone condition Epoxies have additional hazard causing systematic sensitization resulting allergic reactions reactions can either skin respiratory system applies allepoxies glue paint following categories Zinc chromate one-part primer aluminum proven carcinogen including experimental cancers according label solvent toluol also hazardous Epoxy-chromate primers have combined hazards zinc chromate epoxies dust created its sanded will cause sore throat headache overall flu-like symptoms general body pain found out first-hand Catalyzed acrylic enamels like DuPont Centari have solvent hazards abovementioned catalyzing hazard Centari may used catalyzing gloss hardener very fuel-resistant Imron other polyurethanes polyisocyanate compounds can kill either cyanide action coating lungs catalyzing know mn has severe allergic reaction Imron just getting skin comparison lacquers dopes arent bad Inhalation concentrated dope vapors can cause brain hemorrhage kidney damage Most thinners cleaning solvents will pass through skin collect liver kidneys Acetone alone isnt terribly dangerous small amounts occurs body naturally However soaks through skin will carry things bloodstream Clean hands good waterless hand cleaner instead thinner Epoxy glues can removed methanol rubbing alcohol hand cleaner wont get off time alcohol considered safer acetone purpose Lacquer thinner dope thinner contain MEK seeks liver once body known carcinogen Vinyl latex examination gloves available inexpensively through medical-supply stores will protect hands above hazards including trying get products off skin acceptable respirators rated Volatile Organic Compounds VOC cost cheaper ones just dont protect you dont smell odor Continue covering skin well best protection avoid contact begin hope everybody heeds waming Most information has gleaned product labels Some came physician familiar products part first-hand experiences handle products almost day Wing Away An account RC model accident 69-year-old pilot flying since 1953 no log record time flown flight checked 15 years AMA license current aircraft Hobbistar 60 high-wing monoplane allwood construction tricycle gear powered new Fox 74 engine aircraft manufacturers recommended power 60 wing removable transport hangaring considerations second flight aircraft During first flight engine stopped shortly after takeoff successful straight-ahead dead-stick landing made damage Saturday July Lakeland Club aircraft field pilot mounted wing fuselage four bands side no cross bands bands four years old Review manual states five bands side plus least two sets cross bands bands should new aircraft check completed tank filled external engine starter used engine checked high idle conditions final check made controls takeoff normal left turns required some trim normal range After flying about five minutes circling field witnesses said pilot looped aircraft first loop large about ttle second loop full throttle full up elevator top loop wing parted fuselage fuselage made vertical drop impacting earth cornfield pilot although shaken otherwise unhurt wing rotated its longitudinal axis fluttered ground suffered slight tip damage fuselage shatteredunable repaired tail surfaces relatively undamaged engine substantially damaged required repairs equal one-half its new cost lessons learned Follow aircraft manual advice dont overpower aircraft dont use full power full control movement first flights take easy havent flown years Authors additions above lessons learned Dont use old rubber bands discard what remains field box season replace new get checked out instructor havent flown some time honest judge abilities break new engine running few tanks fuel before putting airplane make necessary adjustments check bolts screws bolt place Make Visible know Ive used similar titles past emphasize need paint propeller tips theyre visible spinning However case title applies few tips provided Robert Suding Texarkana RJC Flying Club designed help increase aircraft visibility contemplating what colors put new model spring consider following Avoid single-color aircraft particularly solid silver solid dark colors Beginners advised color bottoms aircraft wings dark color tops light color Orientation recognition can enhanced placing large dark circles under wings starburst pattern straight lines top Any series adjacent colors aircraft intended facilitate orientation should gray-scale opposites color opposites Dont rely intricate patterns tend blend together form edgeless fuzz approximately 100 feet away bright red orange leading edge wing horizontal stabilizer will help keep wings level during landings Color lines parallel above fuselage horizontal thrustline provide good angular reference glide path prior final turn better loops make wingtips horizontal stabilizer red orange body background very light color such white yellow helps tell wings flat Try out different color schemes patterns small balsa gliders see well can see air Hope have great spring wonderful flying season Keep eye out ticks odel Aviation
Edition: Model Aviation - 1996/05
Page Numbers: 29, 30
Edition: Model Aviation - 1996/05
Page Numbers: 29, 30
Gary Shaw SECURE THOSE TAIL FEATHERS talking Giant Scale modeler recently asked would again remind fly big models make sure craft properly secured prior starting particular appeal comes heels accident occurred secured Giant Scale tail-dragger tilted forward onto hands modeler started flightline table front wheels craft sandbagged prevent movement model tabletop However once model started rush air over tailplane lifted rear model air modeler hands resting table under prop model suddenly tilted forward wasnt able move hands away prop time avoid serious injury After $5000 corrective hand surgery lessons learned became painfully simple Have someone hold model never fly alone someone holding airplane accident probably wouldnt have occurred airplane started ground unsuspecting hands might have resting table below prop arc Giant Scale props sometimes several feet diameter start airplane waist-high table its nearly impossible safely reach over around due table height size prop arc Theres nothing exciting wall whirling prop launching itself head tabletop Oh what fun youve never experienced power Giant Scale model visit flying field ask can hold place its powered up Ive never able keep completely still its being throttled up down always moves back forth several inches Hold place ground few minutes full power youll quickly develop degree respect will keep body parts intact Just reminder Blade Container Model Tips section Cascade Model Helicopter Club newsletter Heli News edited Dick McKenna comes following advice regarding used knife blades Avoid getting cut discarded knife blades working shop Keep small jar around has small slit top lid As old blades become dull can safely drop jar May1996 29 p C disposal storage desire resharpen Safety Paints Solvents During past few years Ive spent considerable amount time researching writing columns about using paints glues solvents safely workshop Although attempts present information seemed thorough time few previous columns seem flow information quite well Paint Safety article recently read March 1995 issue Belleville RC Flyers newsletter Transmitter edited Darwin L Evelsizer piece titled Safety Information Regarding Paints written David Dale Houston Texas youre folks getting ready lay coat paint latest project review following might order Youre absolutely correct concerns about safety paints general two-part paints capable catalyzing lungscoating alveoli suffocating little hospital can someone condition Epoxies have additional hazard causing systematic sensitization resulting allergic reactions reactions can either skin respiratory system applies allepoxies glue paint following categories Zinc chromate one-part primer aluminum proven carcinogen including experimental cancers according label solvent toluol also hazardous Epoxy-chromate primers have combined hazards zinc chromate epoxies dust created its sanded will cause sore throat headache overall flu-like symptoms general body pain found out first-hand Catalyzed acrylic enamels like DuPont Centari have solvent hazards abovementioned catalyzing hazard Centari may used catalyzing gloss hardener very fuel-resistant Imron other polyurethanes polyisocyanate compounds can kill either cyanide action coating lungs catalyzing know mn has severe allergic reaction Imron just getting skin comparison lacquers dopes arent bad Inhalation concentrated dope vapors can cause brain hemorrhage kidney damage Most thinners cleaning solvents will pass through skin collect liver kidneys Acetone alone isnt terribly dangerous small amounts occurs body naturally However soaks through skin will carry things bloodstream Clean hands good waterless hand cleaner instead thinner Epoxy glues can removed methanol rubbing alcohol hand cleaner wont get off time alcohol considered safer acetone purpose Lacquer thinner dope thinner contain MEK seeks liver once body known carcinogen Vinyl latex examination gloves available inexpensively through medical-supply stores will protect hands above hazards including trying get products off skin acceptable respirators rated Volatile Organic Compounds VOC cost cheaper ones just dont protect you dont smell odor Continue covering skin well best protection avoid contact begin hope everybody heeds waming Most information has gleaned product labels Some came physician familiar products part first-hand experiences handle products almost day Wing Away An account RC model accident 69-year-old pilot flying since 1953 no log record time flown flight checked 15 years AMA license current aircraft Hobbistar 60 high-wing monoplane allwood construction tricycle gear powered new Fox 74 engine aircraft manufacturers recommended power 60 wing removable transport hangaring considerations second flight aircraft During first flight engine stopped shortly after takeoff successful straight-ahead dead-stick landing made damage Saturday July Lakeland Club aircraft field pilot mounted wing fuselage four bands side no cross bands bands four years old Review manual states five bands side plus least two sets cross bands bands should new aircraft check completed tank filled external engine starter used engine checked high idle conditions final check made controls takeoff normal left turns required some trim normal range After flying about five minutes circling field witnesses said pilot looped aircraft first loop large about ttle second loop full throttle full up elevator top loop wing parted fuselage fuselage made vertical drop impacting earth cornfield pilot although shaken otherwise unhurt wing rotated its longitudinal axis fluttered ground suffered slight tip damage fuselage shatteredunable repaired tail surfaces relatively undamaged engine substantially damaged required repairs equal one-half its new cost lessons learned Follow aircraft manual advice dont overpower aircraft dont use full power full control movement first flights take easy havent flown years Authors additions above lessons learned Dont use old rubber bands discard what remains field box season replace new get checked out instructor havent flown some time honest judge abilities break new engine running few tanks fuel before putting airplane make necessary adjustments check bolts screws bolt place Make Visible know Ive used similar titles past emphasize need paint propeller tips theyre visible spinning However case title applies few tips provided Robert Suding Texarkana RJC Flying Club designed help increase aircraft visibility contemplating what colors put new model spring consider following Avoid single-color aircraft particularly solid silver solid dark colors Beginners advised color bottoms aircraft wings dark color tops light color Orientation recognition can enhanced placing large dark circles under wings starburst pattern straight lines top Any series adjacent colors aircraft intended facilitate orientation should gray-scale opposites color opposites Dont rely intricate patterns tend blend together form edgeless fuzz approximately 100 feet away bright red orange leading edge wing horizontal stabilizer will help keep wings level during landings Color lines parallel above fuselage horizontal thrustline provide good angular reference glide path prior final turn better loops make wingtips horizontal stabilizer red orange body background very light color such white yellow helps tell wings flat Try out different color schemes patterns small balsa gliders see well can see air Hope have great spring wonderful flying season Keep eye out ticks odel Aviation
