Single-engine jets remain some of the most extreme aircraft a pilot can strap into, and several of the fastest are still available to fly in frontline squadrons and training units today. Focusing on ...

Two is one and one is none; This saying speaks volumes about the role of redundant systems within the military. In life-or-death situations such as combat, having a working backup could mean the ...

Add Yahoo as a preferred source to see more of our stories on Google. GettyImages 528673160 Michael Cole Corbis via Getty Images 2 Powerful and dependable, the Rolls-Royce Merlin aero engine was ...

At first glance, a twin-engine aircraft looks a whole lot safer than a single-engine one. After all, if you lose an engine, you still have another to keep you flying in the air, right? This isn't ...

Two single-engine planes collided in mid-air and crashed into the desert just north of Phoenix on Friday, killing all four people in the two planes, fire officials said. The officials who responded ...