Simply put, they improve the airflow around the inboard ends of the elevators= more speed.
Flight test data shows that the result is a decrease in drag that accounts for approximately a 1.6 knot (1.8 MPH) increase in top speed. They also close out the elevator roots for an overall tidier appearance for the airplane.
They fit the following aircraft:
They do not fit RV-4, RVs 9 through 15, or Harmon Rockets with RV-4 elevators.
Provided in primer gray, ready for paint.
EASY Install - Simply trim them to fit according to the instructions provided, and bond them on with high-strength double-sided tape (included) or RTV silicone adhesive.
Installation instructions for our products, in PDF.
Watch how-to videos from our workshop.
Questions about fitment? Call or text +1-623-536-0951, or contact us before you order.
We ship worldwide. Custom and made-to-order items can take longer to dispatch; contact us for a lead time.
See our returns and refunds policy.
Don’t know about the speed increase but it sure looks good
