Recommended overhauls on constant-speed propellers are important. Here is a blade root that would not pass inspection due to scraping—most likely caused by improper lubrication or periods of inactivity.
Recommended overhauls on constant-speed propellers are important. Here is a blade root that would not pass inspection due to scraping—most likely caused by improper lubrication or periods of inactivity.
![[Credit: Wikimedia Commons]](https://www.kitplanes.com/wp-content/uploads/2026/07/4_rutan_a_longez.jpg_preview.jpg?w=218&h=150&crop=1 "Rutan Symposium Turns to the Coming Canard Maintenance Crisis")
![[Credit: Lisa Turner]](https://www.kitplanes.com/wp-content/uploads/2026/02/Fuel-Selector.jpg?w=218&h=150&crop=1 "Fuel Follies")
If it’s on an amateur-built experimental (this is still Kitplanes, right?), by the FAA’s definition it’s not airworthy from the get-go.
Whether it’s in a condition for safe operation is a different matter altogether,
Ironically, we do give them an airworthiness certificate.
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