Sikorsky X2 fastest helicopter ever

[Wizzo]

This is the Sikorsky X2, which is already the fastest helicopter in the world.

As you can tell from the picture, it has two rotating blades on the top, when the X2 is completed, it should be cruising at 285 mph. In comparison the Apache attack chopper goes at a speed of 175, which makes this 110 mph faster! 

The first thing anyone notices about the X2 — Sikorsky, it's worth noting, was founded by rotorcraft pioneer Igor Sikorsky in 1925 — is its double-decker, triple quadruple blade design. It's also got a six-bladed prop in the back, and it's all designed to give the craft excellent handling even at high speeds.