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Old June 4th 15, 06:55 AM posted to rec.aviation.piloting
Skywise
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Posts: 140
Default CAFE Electric Aircraft Symposium Set For May 1

wrote in :

The efficiency numbers look to me to be back of an envelope correct.


And that's all I guarantee them for!

I was about to do some more calculations to try to answer your
questions, and in the process of searching for numbers I found
the following Wikipedia article.

http://en.wikipedia.org/wiki/Hydrogen_economy

At a glance this article seems to cover a lot of the issues
being discussed. I for one would like to read it before trying
to answer. It might be worth other's to read as well.

Brian
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