The F-35 is a single-seat, single-engine supersonic jet with the most advanced computers and networking abilities yet to take to the air, and stealth capabilities designed to make it hard to pick up on enemy radar. The F-35B variant, which has a lift fan mounted behind the cockpit giving the jet short take-off and vertical landing (STOVL) capabilities, meaning it can hover like a Harrier. Working alongside the Typhoon, the F-35 will operate from land, but most importantly it will fly from the two new Royal Navy Queen Elizabeth carriers.