The Harley-Davidson Twin Cam engine helped lift the American motorcycle builder when it needed it most. We checked out some ...

Discover what happens to the US Navy's decommissioned ships, carriers, and submarines, from scrapping and recycling to museums and target vessels.

"Tugboat" can sometimes be a misnomer, since the watercraft can push as well as pull. Here's why tugboats are designed to do ...

Cessna's classic 172 Skyhawk can fly at about 143 mph and cover around 736 miles in ideal conditions with zero wind.