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1. 11:37 AM - VG's (Jerry2DT@aol.com)
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Wow, that's pretty exciting. I wonder if those kinds of results are common.
I guess I better give Larry V. a call.
Thanx,
Jerry
Time: 12:44:30 PM PST US
From: "Howard Walrath" <der_Jagdflieger@prodigy.net>
Subject: RV6-List: Re: Vortex Generators
Subject: Re: Vortex Generators
Jerry, I bought mine from Larry Vetterman (of exhaust system fame)
who worked with several RV owners including RV-4's and RV-6's.
He holds the rights to these and, as I recall, his price was about
$400, including shipping.
Installation took me about 3 hours, with die-cut templates and very
good instructions. Net result was a 9 to 10 knot drop in my 200 HP
RV-6A's power-on-stall speed, a much more docile stall, without the
"which way is she going to tuck this time?" excitement attendant
to Van's 23-foot wing span at very high angles of attack. My normal
landing speed is now about 10-knots slower than pre-VG's.
When I went through portions of Rich Stowell's Emergency
Maneuvers/Recovery From Unusual Attitudes training
in California, he remarked that my RV's stall/spin behavior
was the best he'd ever experienced in an RV.
If the VG's cost me anything in cruise, it is not discernible and
less than 1 Knot -- as I compared before and after detailed cruise
speeds at the same power settings on longer trips. I am a real
believer in them.
Howard
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