Bob Hadley
Bob Hadley is the R&D manager for a California-based consumer products company. He holds a Sport Pilot certificate and a Light-Sport Repairman certificate with inspection authorization for his Jabiru J250-SP.
Fun With Fly Cutters
Did you ever wonder what kind of tool makes those graceful machine marks on factory-made brackets and manifolds?
Reamer Madness
There are a number of things you will get good at when building an airplane. At or near the top of the list is...
In Case You Missed It
![[Credit: Viking Aircraft Engines]](https://www.kitplanes.com/wp-content/uploads/2026/04/engine.jpg?w=324&h=160&crop=1 "Editor’s Log")
Editor’s Log
A wide-ranging look at the myriad engine choices facing today's homebuilt aircraft builders, designers, and pilots.
