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Langley R. Muir

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SPOT, Checked

Navigation expert Langley R. Muir, Ph.D.s in-depth study of the SPOT Personal Tracker reveals its capabilities…and what you need to know to use it most effectively.

In Case You Missed it

Plane and Simple

Protecting wires with cable sleeving.

Time to Vent

When it comes to fuel-tank vents, there is a wide variety of choices. We look at the basic types and consider their relative merits.

Check Ride Chalk Talk

I think it is safe to assume that the vast majority of our readers...

Wind Tunnel

Design process: wing size and takeoffs.