Airplanes get old, and over time their skins can develop tiny holes and cracks. Mechanics are good at spotting these problems during regular maintenance checks, but a technique developed in Britain ...

You’ve heard of 3D printing. Now meet 3D painting, which is also called cold spray. As shown above, the process can repair machine parts in a matter of minutes. Small bits of metal are shot through a ...

When Frank Hill and his sons, Robert and Steve, talk about their old airplanes, they speak respectfully, as if they are wistfully recalling an old friend or relative. “They don’t make them like this ...