Letters: September 2019

Building and Selling Two articles in the June edition really hit home for me: “How Long Will it Take to Build” and “How to Sell...

It’s Da Bom!

Levil Aviation’s BOM puts pitot-static, AHRS, GPS, ADS-B In, and its own power source right under your wing.

Antennas According to Jim (Ch. 1)

First, let’s talk about “polarization”; there are three polarizations. The first two are easy.

Turbine Legend

Let’s celebrate the return of some very fine whine.
Rion Bourgeois (left) and Philip Groelz test the tank for leaks.

Building the Bearhawk LSA

What could possibly go wrong?
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Design Process: Landing Gear

It’s time to turn our attention to a major component of the airplane—the landing gear.
Blue film removal

Easy Blue Plastic Film Removal

A near-zero-effort way to remove the protective blue plastic film from large sheets of aluminum.

Error Chain: It’s What You Don’t Know That’ll Kill You

Or, how to be lucky and dumb–a hypothetical tale in three acts.

Kit Stuff: The Grandfather of the UAV

Drawing on experience: The Grandfather of the UAV
From left to right: A photographer’s loupe, two watchmaker’s loupes, and a folding pocket loupe.

Home Shop Machinist: Magnification

A typical day in the shop for me would be unusual if I didn’t use a magnifier at least once.