Bushcat/Cheetah
I’ve installed your VGs on my Bushcat/Cheetah aeroplane and I couldn’t be happier.
The test was conducted with an instructor, and both of us are very impressed.
Before:
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Vs 50 mph
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Vs1 45 mph
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Vs0 40 mph
The stall had no buffet warning and the nose dropped suddenly. Flare a bit too high at the landing would be a hard one.
After VGs installed on the wings only:
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Vs 38 mph
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Vs1 35 mph
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Vs0 30 mph
The stall had a buffet and a gentle nose drop. Power-on stall had a brutal nose drop. Soft landing, great low-speed control.
After VGs installed on the horizontal stabilizer:
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Vs 35 mph
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Vs1 30 mph
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Vs0 30 mph
The stall has no buffet anymore and no nose drop.
Conclusion: It worked on my aircraft! The improvement in lowering the stall speeds is dramatic, as well as the behavior at low speed.
Liviu, Namibia, Africa