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Paul Lamar

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Makes You Go Hmmm

Rotary-engine enthusiast Paul Lamar details the benefits and efficiencies of using rotary power for homebuilt aircraft.

Return of the Turbo-Compound

Everything old is new again. Paul Lamar looks at the turbo-compound engine, developed in the post-WW-II era. Thrown over for jet engines, it may yet hold promise today as we search for more energy efficient ways to get the most out of increasingly expensive fuel.

In Case You Missed it

Aero ‘lectrics

So-lar, its been good to know you.

Around the Patch

Editor in Chief Marc Cook finds himself in the unique position of being able to compare performance of his GlaStar Sportsman with two different Hartzell props.

Maintenance Matters

Repairing loose rivets.

Engine Beat

Steve Ells surveys those in the know for tips about what to consider when contemplating the purchase of a used aircraft engine.