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?
In Case You Missed It
Slow Leak From a Quick Drain
Solving the mystery of dirty oil leaking from an engine full of clean oil.
DIY Wind Indicator
Chuck Deiterichs description of a do-it-yourself wind indicator project includes tips, drawings, a parts listing, in-progress photos and a look at the finished product. His experimentation with the highly visible design takes the guesswork out of doing it right.
Error Chain: It’s What You Don’t Know That’ll Kill You
Or, how to be lucky and dumb–a hypothetical tale in three acts.