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.
Counterbores
Counterbore sets (front left, and back) typically cover a basic range of sizes for standard socket head screws and bolts. Counterbores with interchangeable...
Drill Guide for Canard Install
Neighbor Phil Hooper's Velocity RG project is making serious progress. With the installation of the canard, it's now almost a complete airplane (sans engine,...
Material Matters-Aluminum
Aluminum is usually marked by the manufacturer to indicate the alloy and temper. The markings may also include the lot number and the...
In Case You Missed It
Mind the Gap
An ill-fitting joint where the wing joins the fuselage doesn't leap to mind as a foremost source of induced drag, but the effects can be significant.
Right-Angle Deburring Tool
Most of us have a threaded drill kit. Mine has an assortment of common...
