>I have them on my KR-2 and here's what I got
>Before the VG's we were getting @ 49.3 kts CAS early in the test flight
>program at a weight of @ 975 lbs. We re-tested with the VG's and were able
>to demonstrate a 44.7 kt stall at 1000 lbs. and 44.1 kt at 1130 lbs. So we
>got an 5 kt improvement or about 11%.
>Rick Human
+++++++++++++++++++++++++++++++++++++++++++++++++++++++

I'll add some food for thought to the subject.  The VG's would add a
safety margin in the air but do little for landing in a conventional geared
KR.  At some point in the building of my KR, I realized that even with
my longer than standard main gear legs, I could not get the wing to a
full stall angle in the three point attitude.  I accidentally proved 
that during
the landing on my first flight.  I kept holding it off until the 
tailwheel touched
first with the wing still flying.  Not something you want to do on a regular
basis.  Can you say "bounce and bobble" !!  All my landings now are
tail low wheel landings.  A tri-gear may benefit.  You would have to see
if you can get the wing to a 14+ degree angle before the tail touches.

You should never need them during "normal" flight conditions.  They might
save your a*# in an emergency but if you're flying that close to the margin
then "dumb luck" is your co-pilot.

Larry Flesner



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