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Jonathan Welsh

Jonathan Welsh
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The 160 hp turbocharged Rotax 916iS is a four-stroke piston engine with redundant electronic fuel injection and ignition. [Credit: BPR Rotax]

2026 Engine Buyer’s Guide

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Our annual survey of the wide array of engine options available to homebuilders, from certified to experimental.

In Case You Missed It

A compact H3R Halon 1211 extinguisher, sized for a two-seat cockpit and safe on energized electrical fires. [Credit: H3R Aviation]

Choosing the Right Cockpit Fire Extinguisher for Your Aircraft

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It’s easy to think of a fire extinguisher as a last-minute accessory: buy one,...

Label Those Wires!

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A look behind most homebuilt instrument panels will present a maze of electrical wires....

All About Avionics

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More and more pilots are installing all-inclusive engine monitoring equipment in their aircraft, and, fortunately, todays monitors are dully reliable.

Building an Airdrome Aeroplanes Fokker D.VII

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Part 1: priorities and decisions.