On 9/20/2012 4:05 PM, Dave Nadler wrote:
On Thursday, September 20, 2012 6:43:29 PM UTC-4, Eric Greenwell wrote:
If it could really work as a self-launcher, say
in low density altitude places...

Electric propulsion systems are barely affected by density
altitude. As density altitude increases, there will be a
small decrease in propeller efficiency, and you have to
accelerate to a higher true airspeed so take-off run
will be slightly longer. In practice there is very
little density altitude effect...

Hope that is clear,
Best Regards, Dave

Well then, that makes the price seem even better! Time to send a plane
ticket to that FES installer guy and get him here! $28,000 to add
self-launch capability is really, really cheap. It cost me $30,000 to do
that on my ASH 26 E 17 years ago, so I'll bet it's double that by now.

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to
email me)

- "A Guide to Self-launching Sailplane Operation Mar/2004" Much of what
you need to know tinyurl.com/yfs7tnz