Watch a video of Stolspeed VGs in action on a 601 HD(UL) wing at
http://www.youtube.com/watch?v=2CmNhvT7LyE
.Note - There's an error in the video at 1:03-1:15 where it appears that the VGs are being mounted on top of the horiz stab and spaced at 60mm.
The VGs should be placed as per the website instructions and below.
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Zenith 601 HD
I owned our Zodiac 601 UL TD three and a half years and I should have put VG's on it 4 years ago, the plane weighs 550 lb empty but was alway's flying nose, high not any more
I put the feathers as per instructions on the wings and also put two on each side facing slightly down 2 inch above the wing on near the leading edge and one were the fuselage bends inward.
then I also put 14 vg.s on top of the canopy to keep the air attached to it and not become turbulent
10 MPH drop in stall speed is a lot . now every landing is tail wheel first. and the plane just fly's like on rails.
Thanks for a great product
Ron, British Columbia, Canada C-NFSR
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Placing Stolspeed VGs on the 601HD(UL) wing
Place the front tips of the VGs along a line 310mm in front of the main rivet line on the top of the spar.
Spacing: From the wingtip first 15 VGs 60mm, the rest 90mm.