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Part 2: Reworking a wood propeller.

Randall Harris’ EAA Biplane was on our May 1989 cover in a paint scheme...

Heres one instance where the sound of silence (as in no engine noise) wont signal the need to start scoping out a place to set down. The Urban Air motorglider offers a compromise that makes the best of both worlds: fuel-efficient powered cruising and exciting powered-off soaring.

Last month we took a look at the trade-offs the designer should consider when...