Bryan Jones

Homebuilt aircraft played a key role in bringing aid to the Bahamas after Hurricane Irene. Amy Laboda explains how you can join in future relief efforts.

Manifold destiny—3D printing a manifold.

Taking that first cut into the sheet metal of an aircraft panel can be daunting, and being as precise as youd like is even more so. Author Bob Fritz eases your anxiety about the process with some tips about how to use the right tool for the right job, so that the hole you get is the one you wanted.