Lorn, that has to be a mistake.  If the Lancair can glide that far with the
prop feathered I'm selling my Glasair.  He may have had headwinds, etc.  There
are probably quite a few mitigating factors.

Steve,

 

Right on about the headwinds.

 

While you are suspicious of my descent rates, what have you measured in your own airplane?

 

Note that for emergency planning purposes, I personally (and initially) use a conservative 10:1 ratio - if it doesn't look close I am looking for a bean field unless the flyover state doesn't have any.