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Originally Posted by dcb
Electric airplanes are also a bonehead move...
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Not so bonehead for the self-launching sailplane application. You only need 10-15 minutes run time, and you don't have to mess with gas, starting, noise, vibration... It's basically all the advantages of my electric lawn mower over a gas one.
Might also look at how many electric RC airplanes (and helicopters) there are out there.
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Cut consumption by 25%, in the same breath as "Wankel"? My BS alarm is going off.
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In my experience (a lot of long-distance drives in a Mazda RX-3, back in the '70s), the Wankel isn't at all bad at a constant, fairly high RPM. It would cruise down the interstate for hours at 70+, but the varying speed & load in city driving would kill the mpg.