practical range

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craneplaneguy   10 kW

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practical range

Post by craneplaneguy » Oct 22 2018 10:33pm

I flew to West Yellowstone MT, via the Grand Tetons, this weekend, in my little homebuilt kitplane. It's nothing high tech, mostly aluminum and fabric construction, with a chrome moly fuselage. Slow too, for an airplane. The E Montague folder came in very handy as usual once on the ground, as the airport is quite a ways from town.

BUT, it has a tremendous duration, on it's 35 gallon capacity of regular car gas (total, rarely filled) well over 8 hours, with reserves. This flight was 4 hrs of flight time, 2 there and 2 back, though different routes. Once back home I had over half of my fuel capacity left, I could have made the flight again..... purely from a practical viewpoint, this is very handy, not to mention safer. I started thinking, what electric plane could do that, that is currently available? None that I know of, not even close, and at any price! I was surpised to have this thought, as I am excited about e flight as most, and will continue to be so, I just thought it was indicative of how much more work needs to be done before they will challenge an ICE powered machine as a practical traveling machine. It will happen I'm sure, but we're not there yet.
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billvon   100 MW

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Re: practical range

Post by billvon » Oct 22 2018 11:28pm

craneplaneguy wrote:
Oct 22 2018 10:33pm
BUT, it has a tremendous duration, on it's 35 gallon capacity of regular car gas (total, rarely filled) well over 8 hours, with reserves. This flight was 4 hrs of flight time, 2 there and 2 back, though different routes. Once back home I had over half of my fuel capacity left, I could have made the flight again..... purely from a practical viewpoint, this is very handy, not to mention safer. I started thinking, what electric plane could do that, that is currently available? None that I know of, not even close, and at any price!
Consider an aircraft that looks like a Cessna Skymaster, with a Rotax 582 in the back and a ~150kW electric motor (with folding prop) up front. You get the range of an ICE engine, and the power (and simplicity, and redundancy) of electric.
--bill von

thepronghorn   100 W

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Re: practical range

Post by thepronghorn » Oct 29 2018 4:02pm

Beautiful picture. The Tetons are one of my favorite national parks.

craneplaneguy   10 kW

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Re: practical range

Post by craneplaneguy » Oct 31 2018 10:49pm

It's stupid easy to take a spectacular pic of them, the Tetons, a no brainer, they look so damn good!

Foob   1 mW

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Re: practical range

Post by Foob » Nov 26 2018 12:13pm

Could any of the SunFlyers have done the trip? Not available yet, but SunFlyer 2 seems to be getting closer to a cert.

craneplaneguy   10 kW

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Re: practical range

Post by craneplaneguy » Nov 26 2018 9:22pm

In theory, using their projected #'s. But it appears that it will sell for $289,000.00, and if anything that price will go up. So about 6.5 times cost then my bird. Plus, it's a "go fast", super clean, with little dinky tires, my bird is much draggier as it's set up for off airport, i could never operate a Sunflyer off my place, it needs a paved "real" runway, mine doesn't.

Foob   1 mW

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Re: practical range

Post by Foob » Nov 27 2018 12:27pm

Heh, you didn't mention off-airport! Though, maybe for paved strips "not even close, at any price" could be "getting closer, at the price of a fancy Cirrus"? I think off-airport ops are likely to remain challenging for EVs even after regional jets, with all their infrastructure support, are spinning EDFs instead of turbofans.

craneplaneguy   10 kW

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Re: practical range

Post by craneplaneguy » Nov 27 2018 9:48pm

Oh yeah....
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