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...
Aero ‘lectrics
Jim Weir shows you how to create and install LED lights and run them from ships power inexpensively and easily.
Aero ‘lectrics
Transistors don't like excessive heat, but there's a way to beat it: an engineered heat sink.
Aero ‘lectrics
This month, Jim Weir describes how to create an LED strip with any three colors and offers a brief lesson on human optics too.
Padded C-Clamps
Often we have both hands busy holding a part and need two more hands to position a clamp and hold the wood pads in...
In Case You Missed it
Ask the DAR
Selling a project, Sport Pilot-eligible aircraft, recycling an N-number, Phase I testing.
Buzzwords: Maneuvering Speed
Ed Kolano unravels some of the misconceptions of the oft-misunderstood term, “maneuvering speed,” and explains the implications for pilots of homebuilt aircraft.
Low-Cost Spark Plug Ohm Tester
This handy tester is rugged enough to be stored in your tool tray with...
Something Wild
When a homebuilder has a vision for a unique paint scheme on his RV-3, he assembles a team that can bring it to life.