---------------------------------------------------------- RV6-List Digest Archive --- Total Messages Posted Fri 12/23/05: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 11:37 AM - VG's (Jerry2DT@aol.com) ________________________________ Message 1 _____________________________________ Time: 11:37:54 AM PST US From: Jerry2DT@aol.com Subject: RV6-List: VG's 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" 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