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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

Prop Blade Effects

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We often treat the propeller as a uniform “actuator disc” and the slipstream as...

An Open Mind

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Normalcy had evolved in a fair way. Overcast and cool in the morning, the...

The AirCam Experience

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Pure enjoyment flying low and going slow.

Completions

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Builders share their successes.