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
Letters
Paisely on GroundsAfter a 30-year career encompassing motorcycles, oilfield perforating trucks, and now oilfield...
![[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.
Here We Go Again
Looking ahead to the aircraft kits and plans—for airplanes and rotorcraft—available for 2025