Certified vs. Experimental

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Just as airplanes are legally grouped as certified or Experimental, engines follow the same scheme.

Compression Ignition (Diesel & Jet A)

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Continental Thanks to their complex and high-pressure nature, diesel (Jet A-burning) piston engines are premium devices full of expensive parts, and their penetration into the...

Rotary (Wankel)

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American Rotary Engine /Auto PSRU’s We’re combining these two very separate companies under one heading because they join to offer a Mazda 13B rotary engine...

Flat Four-Stroke Gasoline

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2022 Engine Buyer's Guide Index Introduction Flat Four-Stroke Gasoline Inline and V Four-Stroke Radial and Rotary (Traditional) Rotary (Wankel) Compression Ignition (Diesel & Jet...

Compression Ignition (Diesel & Jet A)

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2022 Engine Buyer's Guide Index Introduction Flat Four-Stroke Gasoline Inline and V Four-Stroke Radial and Rotary (Traditional) Rotary (Wankel) Compression Ignition (Diesel & Jet...

Radial and Rotary (Traditional)

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Classic Aero Machining For those seeking an authentic, full-gyroscopic rotary experience, New Zealand-based Classic Aero Machining has developed brand-new seven- and nine-cylinder Gnome Monosoupape engines....

Air-cooled Volkswagen

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The air-cooled Volkswagen aero conversion community shares many characteristics. Obviously they are all built from the VW Type-1 engine, even if some have been...

Two Stroke

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Engine Buyer's Guide Index Introduction Flat Four-Stroke Gasoline Inline and V Four-Stroke Radial and Rotary Rotary (Wankel) Compression Ignition (Diesel & Jet A) Volkswagen ...

Inline and V Four-Stroke

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AeroMomentum We hope AeroMomentum doesn’t mind us characterizing them as a boutique engine maker, but they are a compact company centered on delivering modern, water-cooled,...

Inline and V Four-Stroke

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2022 Engine Buyer's Guide Index Introduction Flat Four-Stroke Gasoline Inline and V Four-Stroke Radial and Rotary (Traditional) Rotary (Wankel) Compression Ignition (Diesel & Jet...

In Case You Missed It

Whimsy

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There’s no reason to participate in the hobby—for that matter, any hobby—unless it’s underpinned by fun.

Completions

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Builders share their successes.

Homebuilding-In the House!

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Building a hoist allows a builder to construct a full-span wing assembly inside his house-and keep it out of the family's way.

Ask the DAR

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Additional Pilot Program, proving LSA eligibility, complying with the 51% rule.