>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