Rounding a Hole

1
Cut large holes in thin material freehand.

Diodes, Backward and Forward

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Let’s talk about what makes a diode—what the physical makeup of a diode really looks like on the inside.

Accessory Stacking To Mill an Arc

1
Securely holding small parts for machining is always a challenge. The solution may be to use a work-holding gadget such as a pin vise...

Failed Ignition System

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When it comes to aircraft ignition systems, I’ve always favored having one magneto and one electronic ignition system (EIS). Many dual electronic ignitions require...

What About an Ultralight?

2
Ever consider what it might be like building an ultralight?

Scratch Build a Kit?

1
I want to present a strategy and method to get a few more prospective airplane builders off the fence and into the workshop. This...

Driver Upgrade for Avionics Trays

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Installing small screws into the tight confines of a deep avionics tray is a challenge that can be both annoying and frustrating.

Franklin vs. Edison et al. and Marconi

2
A word we use rather flippantly when perusing electronic circuitry—ground.

ERCuSi-A Silicon Bronze, the AlternaTIG Option

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Last summer I had the chance to get some hands-on experience with TIG brazing. Other than a YouTube video or two, I knew next...

Ernie’s Room and Board

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Way back in March ’23 (deep in snow here), I gave you the problem of Ernie, who needed a flashing light to see when...

In Case You Missed it

How to Use Your Oxygen System

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Things to know before you go. By Gary Jones.

Portable Coms Compared

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Which portable VHF transceiver comes out on top after a side-by-side test in the field?

Wind Tunnel

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Design process, part 3-how fast?

Experimotive

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You know those engine vendors you usually see at the big annual air shows? Where do they go when they disappear? Detective Rick Lindstrom is on the case.