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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 ...

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 ...

You won't come across many cars with a V4 engine. It can have problems with its balance, leading to excessive rattling and vibration, plus it takes up more space than a four-cylinder engine is worth.

What makes a great internal-combustion motor? We explain why these petrols, diesels and even a hybrid made the list ...

After spending a weekend with a Lamborghini Temerario, which has a fantastic V8 that revs all the way to 10,000 rpm, I started thinking about the best engines I've ever experienced from behind the ...