Tag: safety
In Case You Missed It
Ask the DAR
When can a project be registered as Experimental? Can a non-complying airplane be registered as an LSA? How is the 51% criterion determined? Answers to these questions come from DAR Mel Asberry.
The Home Machinist (Part 8)
In his continuing series, author Bob Fritz discusses the ins and outs of threads including how to avoid seizing, types of threads, sizing, drilling holes, using a tap-drill chart, and matching fastener dimensions.
![[Credit: Mike Davenport]](https://www.kitplanes.com/wp-content/uploads/2026/02/DSC_0053.jpg?w=324&h=160&crop=1 "Pre-War Porterfield")