At Old Rhinebeck Airdrome in Red Hook, New York, sits one of the premier collections of vintage aircraft in the United States. Director of Maintenance Mark Mondello is one of the key people ...

Rotary engines differ from conventional ones in many respects — and one of them is the fact that they use two different spark ...

In a world dominated by pistons, the rotary engine was something different for motorists. It was the vision of German engineer Felix Wankel, built on the belief that the up-and-down motion of pistons ...

While modern engines feature many tweaks and improvements on the original ideas, they usually aren't as interesting as the strange contraptions engineers experimented with in the early days. Take, for ...