Sikorsky X2: This revolutionary helicopter boasts a co-axial rotor system and a pusher propeller, allowing it to reach speeds of over 250 mph.
Eurocopter X3: This hybrid helicopter combines a traditional main rotor with two tilting propellers, achieving speeds of around 250 mph.
Westland Lynx: While it's been surpassed by newer models, the Lynx still holds the record for the fastest production helicopter, with a top speed of around 245 mph.
AgustaWestland AW159: A versatile helicopter, the AW159 can reach speeds of over 200 mph.