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Old September 24th 12, 09:57 PM posted to rec.aviation.soaring
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Default Which sustainer system would you chose for your sailplane?

On Monday, September 24, 2012 8:51:33 AM UTC+1, wrote:
Thank you for adding FES to Dealers Contact at ASA webpage!



There are two packs for a few reasons:

-at FES batteries are charged outside of glider, so with two packs weigh of one pack is only 15kg, which is still acceptable for holding them in hands.

-Voltage of one fully charged pack is 58V which is safe enough for hadling.



Regards,



Luka


Luka, I don't see why you cannot give at least a large part of the information which I or Eric requested. By all means use manufacturer quoted information for the rival products. I must say if I was in the market for a sustainer I would be looking for such information.

I have worked out from the FES website that for the FES system you claim 45 kg weight, no increase in drag (can that really be true? - many people would find that really important), 5,000 foot of climb, and 3 knots rate of climb. The only new 15m plus glider available with the system is the LAK 17 15/18, but you say the system is technically suitable for retro-fitting to a wide range of gliders. Have I got all that right?