Technological advancements made the development of these engines possible -- and forever changed the way outside observers ...

Because now rotary specialist Rob Dahm has his hands on the Y-configuration 12-rotor,15.7-liter, tri-turbo engine built for a speedboat, but never used, by high-performance engine builder Tyson ...

Designed for all-weather, night attacks, the two-seat YA-10B was meant to counter Soviet Cold War armor tactics, but only one was built. Project A-X The ...

This Cessna 310K is a fast and smooth twin-engine airplane, perfect for long trips. With great range, easy handling, a spacious cabin, and generous storage space, it’s a strong and reliable choice for ...

The room was filled with 30 or so antique hit-and-miss engines, seven of which were running. Each machine had its own quirky rhythm and unique set of whirling, bobbing and snapping parts.

The event is from 5 p.m.to 10 p.m. at the Leavenworth Festhalle, 1001 Front St., Leavenworth.