Mailing List lml@lancaironline.net Message #47325
From: Chuck Jensen <cjensen@dts9000.com>
Sender: <marv@lancaironline.net>
Subject: RE: [LML] Re: Turn back to the Airport after engine failure
Date: Mon, 19 May 2008 14:31:17 -0400
To: <lml@lancaironline.net>
Lynn,
 
I won't try to shout anyone down, heck I don't even own a Lancair, but wish I did in the middle of some 3 hour flights.  I think one area of the turn-around not fully appreciated is difficulty of simulating, even at altitude, or especially at altitude, is the sudden stoppage of power while in near max performance climb at high AOA.  There is so little energy stored and the 2-3 seconds for recognition and response that one will be fast dissipating whatever speed energy is stored before the nose has to be push down HARD with precious altitude lost to regain best glide speed.  Some will be better at it than others, most will be less than acceptable.
 
Once that transition manveure is accomplished (assuming it is and there are a lot of instances where the turnaround attempt never makes it any further than that), then one has to deal with an airplane, beautiful and fast that it is, that extracts a high penalty for a stall in a turn.  All told, a decision altitude of 500' for RTA sounds like a one in ten shot...at best.
 
Granted, I would try it in a Velocity as there is little penalty for a stall in a turn--the turn flattens out (upright I might add) and one is stuck with seriously degraded airspeed and the landing, wherever that occurs, is going to be a bit of a pancake unless there is enough altitude and fortitude to jam the nose down again to gain just a little speed.
 
As much as I admire the Lancair series planes, low, slow and tight turns does not seem to be their forte.  Just an outsiders viewpoint.

Chuck

 -----Original Message-----
From: Lancair Mailing List [mailto:lml@lancaironline.net]On Behalf Of farnsworth
Sent: Sunday, May 18, 2008 5:58 PM
To: lml@lancaironline.net
Subject: [LML] Re: Turn back to the Airport after engine failure

 

 

 

 

Oh, and pull the prop out.  This is critical.  The glide ratio on the Legacy is about doubled with the prop pulled out. 

 

A feathering prop is even better.

 

Lynn Farnsworth

Super Legacy #235

TSIO-550 Powered

Race #44

Feathering Prop.

 

PS

 

Lee Behel has a feathering prop; when he had an engine failure at Reno last year, the feathering prop was the difference between an uneventful landing at an airport and an off airport landing.

 

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