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Bob Hadley

Bob Hadley
88 POSTS 3 COMMENTS
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.

Cylinder Hones and Honing

Honing and lapping are similar inasmuch as both employ abrasive action to remove metal and refine the finish of the surface that’s being honed...

Laps and Lapping

Lapping was an important step featured in two recent columns. Last month’s gauge block project and the September 2020 drain adapter both demonstrated basic...

Confessions of a Blockhead

Gauge blocks are the foundation for pretty much everything. At least everything that has to do with precision measuring and manufacturing. I use parallels,...

Light Sport Repairman—Maintenance

Have you ever thought about becoming a licensed airframe and powerplant (A&P) mechanic, but put the idea out of your head because of the...

A Seal Deal

Radial oil seals, the kind found on rotating parts such as crankshafts, cam shafts and axles, are wear items and occasionally need to be...

Prop-aganda

The other day I heard about a guy at my local airport lamenting the cost of overhauling the prop on his $4 million SOCATA...

Billet or Weldment With Off-Axis Turning?

People tend to design around their particular expertise. A machinist will design based on machining parts out of solid billet, a welder will design...

Ye Olde Slip Roll

This month’s project is a follow-on to the Pietenpol muffler that was the subject of the Home Shop Machinist column in the May 2019...

Lightweight Stepladder

I affectionately refer to my Jabiru light-sport as being a “low high-wing” airplane. This is because, despite it being a high-wing configuration, you have...

The Other P Factor

Late last year I flew from Southern California to Tucson and back in my Jabiru Light Sport. The flight was about 3½ hours each...

In Case You Missed it

Home Shop Machinist

Machines! Part 2.

Building Unusual

Westfall Special past and present.

Letters

Ignition AdvanceRegarding Nigel Speedy's article , I had a friend doing a similar experiment...

Flight Review: Practical Glass

Marc Cook admires Dave Ammenti’s exceptional GlaStar and details why these designs have held their value in the used market over the years.