From: N295VV@aol.com
Message-ID: <bd5f0d7d.3688fc2c@aol.com>
Date: Tue, 29 Dec 1998 10:58:36 EST
To: lancair.list@olsusa.com
Subject: Re: LIV Stall Characteristics
Mime-Version: 1.0

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From: n295vv@aol.com  (n295 v v @aol.com)

Regarding stall characteristics of the LIV, I can only report on my plane.
The stall is so docile that you dont feel, see it, or notice it.  No wing
drops. Nothing.  I have flown it at 60 kts with  no observable excursions.
The trouble is that it indeed is in a stall -a flat forward stall that you
can't feel, but when you look at the VSI, the plane is dropping at a thousand
or more feet per minute and you are level as heck.

Compared to my Mooney that would drop the nose 295' the first second, and if
you were at all uncoordinated, would do a snap roll into a vicious spin, this
is quite different.

My guess is that the characteristics of the LIV may depend upon whether the
wings were built at the same time with the spars bolted together (as mine
was), or whether each wing was built separately at different times with jig
reversals.

It may also depend upon the placement and inclination of the wings when they
were attached to the fuselage.

Am I happier with a docile, flat stall?  Not necessarily.  I just have to
remember not to do any inadvertant slow flight, as all of us do.  On the other
hand, my plane would stay upright, I hope, in the event of a severe bleed off
of air speed on landing such as a wind shear problem, rather than flipping and
auguring the wing into the ground.

Now, all said, does this have anything to do with Martin's NACA profiles?  Who
knows?.....

David Jones, Pecatonica, Illinois