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Old June 23rd 08, 09:36 PM posted to rec.aviation.piloting
Jim Logajan
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Default How Beat The High Cost Of Fuel: The ElectraFlyer-C

Gig 601Xl Builder wrote:
And what is the waste product for Aluminum burned in air? Really I don't
have a clue.


Likely combustion equation:

4Al + 3O2 - 2Al2O3

The result on the right is Sapphire.