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FES vs Gas Engine – Finding a Thermal?



 
 
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Old August 26th 17, 02:58 PM posted to rec.aviation.soaring
Dave Nadler
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Default _FES_vs_Gas_Engine_–_Finding_a_Thermal?

On Saturday, August 26, 2017 at 6:15:08 AM UTC-4, Dave Walsh wrote:
Another comment: the only vicious and totally-unexpected spin

entry I ever...

Well that sounds horrible! Are pylon powered sailplane
manufacturers required to demonstrate spin recovery with the
engine out and stopped?


All pylon-drive machines suffer some degradation of tail effectiveness
because of the pylon wake, much worse with a big radiator as in gas
powered machines. The V2cm in plummet-mode is not real stable in yaw
with much reduced elevator and rudder authority, and I was specifically
warned to be extremely careful with this configuration...
 




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