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#51
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AV gas prices
I've heard that the gravity fed fuel systems don't seem to experience the vapor locking and I've never experienced carb ice in any vehicle but my VW. I'd think a pressure system would be more immune than gravity fed. Roger (K8RI) ARRL Life Member N833R (World's oldest Debonair) www.rogerhalstead.com I think If it sucks it's more immune but if it blows it's less. That's why new cars have the pump in the tank. Unfortunately most planes don't. |
#52
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AV gas prices
"Drew Dalgleish" wrote in message ... I've heard that the gravity fed fuel systems don't seem to experience the vapor locking and I've never experienced carb ice in any vehicle but my VW. I'd think a pressure system would be more immune than gravity fed. Roger (K8RI) ARRL Life Member N833R (World's oldest Debonair) www.rogerhalstead.com I think If it sucks it's more immune but if it blows it's less. That's why new cars have the pump in the tank. Unfortunately most planes don't. My Model A Ford's gravity flow system never had problems. I have had two fuel tank pump failures in "modern" cars. I agree with Ronger, a gravity fuel system seems to work well in high wing airplanes. Wayne HP14 "Six Foxtrot" (All fuel system problems are solved if you don't carry any fuel) http://www.soaridaho.com/Schreder |
#54
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AV gas prices
"cavelamb himself" wrote in message ... Ernest Christley wrote: wrote: I'm going to get some 10% Ethanol Supreme and put one of my A/C quality fuel lines in it and let it soak. It takes time. You might run several years without problems. My Deb has bladder tanks (Neoprene impregnated canvas I believe) they would not stand up. The tip tanks are bare fiberglass and resin. They too dislike Alcohol. However the big Continental needs 100 octane. Jim Maher ran auto-gas in his rotary powered Dyke Delta. Cranked the engine once a month in the years that he was finishing the rest of the plane. First flight went without a hitch. First few hours with no problem. The he lost partial power in flight. Luckily near his home airport. He couldn't maintain altitude, but he had time. Took it home safely. On inspection, the fiberglass fuel tank flaked apart and crumpled like paper. I wasn't there. I haven't seen it. But Jim isn't the sort to lie about these sort of things. I believe he said he used Aeropoxy (though, don't hold me to that one). Most epoxies will do that. That's why vinyl ester is recommended for fuel tanks. Some chemical resistance info he http://www.epoxy.com/vester.htm Lots more he http://www.derakane.com/derakaneCont...comend ations 100°F is the max temperature recommended for the Derakane 470 with 'gasohol' 10-100% alcohol. Don't want to be sitting out on the ramp in Arizona with thqat stuff in the tanks...although the 470 stuff seems to be the best in there product line for this application. WHere to get some: http://www.aircraftspruce.com/catalo...vinylester.php |
#55
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AV gas prices
"Blueskies" wrote in message ... 100°F is the max temperature recommended for the Derakane 470 with 'gasohol' 10-100% alcohol. Don't want to be sitting out on the ramp in Arizona with thqat stuff in the tanks...although the 470 stuff seems to be the best in there product line for this application. You don't have to be in Arizona to have internal wing temps above 100°F. http://www.soaridaho.com/Schreder/Co...olor_Temp.html Wayne HP-14 "Six Foxtrot" http://www.soaridaho.com/ |
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