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Roger Kellogg


Split Decision

Building a vertical-split cowl for an RV-7A.

In Case You Missed it

Ask the DAR

Modifying different types of Light Sport Aircraft, updating Phase II operating limitations.

The Dawn Patrol

Dick Starks envisions the perfect vehicle for transporting messengers in the throes of trench warfare-and then he builds one.

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.

Kit Stuff