Air-Cooled Volkswagen

2
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...

Jets & Turboprops

1
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...

Corvair

2
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...

Two-Stroke

3
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...

Electric

1
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...
DeltaHawk DHK180

Circling the Airport

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Building Experimental aviation engines is a tough business at best, so engine programs come and go. Furthermore, as sport aviation blossoms into the competition...

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...

Certified vs. Experimental

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

Flat Four-Stroke Gasoline

2
AC-Aero USA LLC Stroker kits and water-cooled cylinders for Lycoming 360/540 engines are AC-Aero’s specialty. This still-new company seems to have found a steady base...

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,...

In Case You Missed it

Firewall Forward: Choosing a Prop for Your Project

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Wood or composite? Constant speed or fixed pitch? The choice of propeller should be made just as carefully as the choice of an engine. Dave Prizio outlines some of the important factors to consider.

Trike to Dragger

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Making the switch.

What’s New

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Illuminate your panel, a new EFIS, and a Subaru-based firewall-forwaard engine package; edited by Mary Bernard.

Around the Patch

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Editor-in-Chief Marc Cook reflects on the joy offered by low-and-slow flying machines and discusses the state of the kit aircraft market.