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johngoodman
Joined: 18 Sep 2006
Posts: 530
Location: GA
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 Posted: Sat Feb 16, 2008 7:38 am Post subject: Is the electric airplane coming? |
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Noticed some articles in Automobile Magazine and Motortrend recently about the new Tesla Roadster. It doesn't take much imagination to see what it could mean for airplanes. For instance:
The Tesla has a curb weight of 2690 pounds, an RV-10 is 2700 pounds.
The Tesla has 248 hp and the Lycoming gives about 260 hp.
Motortrend describes the electric motor as "watermelon-sized".
The lithium power cells (all 6831 of them) are supposedly similar to laptop batteries with a proprietary arrangement, and Tesla claims they will last 5 years still yielding 70% of their power. They are selling the car for $98+, so the drive train is definitely affordable by RV-10 standards. By the time you need replacements, the Lithium-Titanate ones should be available & cheap.
The current Electric Drag Car champion uses Li-Titanates and has a modified arc welder he uses for quick recharges at the track.
Fire away....
John
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#40572 Phase One complete in 2011 |
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Andy Turner
Joined: 10 Jan 2006
Posts: 31
Location: Clarion, PA
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| Posted: Sat Feb 16, 2008 8:28 am Post subject: Re: Is the electric airplane coming? |
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The folks at Sonex have been working hard on an electric powerplant. There was a good writeup recently in "Sport Aviation", here is a press release: http://www.sonexaircraft.com/press/releases/pr_072407.html
Promising concept, they still have a long ways to go with the storage issues.
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Andy Turner |
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n8vim(at)arrl.net
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| Posted: Sat Feb 16, 2008 11:47 am Post subject: Is the electric airplane coming? |
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>Fire away....
Nah, Don't have to... Lithium batteries, when contaminated or not
properly cared for, can do that on their own 
(Lithium Polymer batteries can ignite when you look at them wrong! )
The Chevy Volt had an issue with the LG batteries; Chevy called it a
"Thermal Event". They switched to A123 batteries and haven't had a
problem since.
-Jim 40384, Why yes, I am an Electronic Engineer!
johngoodman wrote:
| Quote: |
Noticed some articles in Automobile Magazine and Motortrend recently about the new Tesla Roadster. It doesn't take much imagination to see what it could mean for airplanes. For instance:
The Tesla has a curb weight of 2690 pounds, an RV-10 is 2700 pounds.
The Tesla has 248 hp and the Lycoming gives about 260 hp.
Motortrend describes the electric motor as "watermelon-sized".
The lithium power cells (all 6831 of them) are supposedly similar to laptop batteries with a proprietary arrangement, and Tesla claims they will last 5 years still yielding 70% of their power. They are selling the car for $98+, so the drive train is definitely affordable by RV-10 standards. By the time you need replacements, the Lithium-Titanate ones should be available & cheap.
The current Electric Drag Car champion uses Li-Titanates and has a modified arc welder he uses for quick recharges at the track.
Fire away....
John
--------
#40572 QB Wings, QB Fuse arrived
N711JG reserved
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