In 2014 Van’s Aircraft put out a service bulletin for potential cracking in the horizontal stabilizers of the RV-6, RV-7 and RV-8 series of aircraft. While the service bulletin calls for annual inspections in this area, I recommend more frequent checks for those aircraft that are regularly performing aerobatics. The crack shown in the photo was discovered two months after a condition inspection.
In Case You Missed It
Archive: December 1993
Our end-of-year issue for 1993 was then, as it is now, the annual “homebuilt...
Cooling Outlet Design
The design must focus on sufficiently cooling the engine while minimizing drag.
Notes From the Heartland
No surprise that my first trip back to Oshkosh in years was a funny...

![Last Bits [Credit: Lisa Turner]](https://www.kitplanes.com/wp-content/uploads/2026/04/Inspections-1-scaled.jpg?w=218&h=150&crop=1)
![Weight In The Balance [Credit: Eric Powell]](https://www.kitplanes.com/wp-content/uploads/2026/02/AdobeStock_1043661239-scaled.jpeg?w=218&h=150&crop=1)










Excellent information
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