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Groppo Avio

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Around the Patch

In keeping with the spirit of this years Directory of Plansbuilt Aircraft, Editor-in-Chief Marc Cook extols the virtues of enjoying the process of building of an airplane as much as the flying of it.

Affordable Borescope

Longtime airplane builder Ed Zaleski manipulates the borescope to get the proper image...

Sizing an Avionics Cooling Fan

How much is enough?

Checkpoints

Oshkosh 2017 musings.