Actually I started this thread to show that gliding was getting a bit
of publicity from the quote to the media by Simon. I though that was
good. I didn't mean to start an electric car argument - sorry
Cath
Sent from my iPhone
On 30/10/2009, at 5:56 PM, Mike Borgelt
wrote:
At 05:07 P
At 05:07 PM 30/10/2009, you wrote:
For the best efficiency as a windmill, the prop needs to have a
large diameter and the delta-V (change in velocity along a
streamline) needs to be minimised, indicating that a descent at
close to minimum-sink speed would be required for maximum energy recovery
Yes, but an electric tug doesn’t have to carry the equivalent of 100L of avgas
like a “conventional” electric aircraft would for cross-country flying. If you
allowed regenerative battery charging, the tug could completely exhaust its
battery getting to 3000ft and then recharge just enough on th
