Rans S6 Coyote
My vortex generators are now installed, and yesterday I did the first tests in calm air.
| Test Condition | Without VGs | With VGs |
|---|---|---|
| Stall speed (flaps clean) | 75 km/h | 65 km/h (35 kts) |
| Takeoff distance | Very short | About half as long |
| Landing (flaps 2) | Final at 100 km/h | Final at 85 km/h (and could likely be slower) |
| Cruise at 5800 rpm | 150 km/h | 150 km/h (81 kts) |
Good balance now with the VGs installed under the horizontal stabilizer.
Landings are much easier and smoother , it just floats on.
I placed the first 18 VGs at 60 mm spacing and the rest at 90 mm, all positioned 84 mm back from the leading edge, as you can see in the attached photo.
Francis, France
