| Ronald, that is a big debate. Full feathering does get you somewhat more glide (if you dig in the archives you'll find some numbers) but it also goes to full feather in any oil pressure loss situation. One of our members had a situation where he had power but low oil pressure due to a leak in the crankshaft. He was able to land it because he did NOT have a full feathering prop and his prop went to fine pitch instead. It's an interesting point but I consider the conditions where it's relevant extremely unlikely.
As far as I can tell (no didn't do it yet) with the prop feathered and the airframe clean you'll get about 600 fpm down at 120 knots. Over the rockies at cruise that could be useful.
On Jun 18, 2011, at 6:15 AM, RONALD STEVENS wrote: Hello guys
For what I have gathered so far the lancair 4p has a glide ratio similar like a piano LOL In other words if the engine quits then open the door, throw out your keys because there is where you land LOL
Well, this might not be true, or is it?
So how about the full feathering prop ? Does anyone have experience with the before and after installation? How much they cost and data?
Thanks -- Ronald
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