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Engine Buyer's Guide

In Case You Missed it

A Guide to Guides

While it never feels good to be stuck in the ribs, when you deserve...

Rapid Prototyping and Experimental Design

Coupon testing, part 1.

Old World, New Engines

After putting another $140 into the gas tanks of my 300-hp biplane, I have...


Converting a Strojnik S2A motorglider from gas to electric power.