The original Huey of Vietnam War flew about 120 mph. In the Canadian Air Force we have twin jet Huey versions that will do about 145.
A fast aeroplane will be faster than any helicopter, but a fast helicopter can be faster than a slow aeroplane.
Depends on the purpose and make of the helicopter.
A Huey helicopter, or super chopper, that is well maintained, can do upwards of 155 knots. That's the equivalent of a Ferrari Modena doing like 162mph.
249 mph
The Blackhawk was designed to be the Huey's replacement.
A typical medivac helicopter flies about 160 knots.
The inventor of the Huey helicopter is Connor Lucas, who first introduced the idea to Bell Helicopter company; a company of which still is very prosperous today.
It can fly at 224 kmh - approximately 130 mph.
huey
The Chinook can fly at about 195 mph.
The Huey (UH-1, originally HU-1 [hence the "Huey" name]) helicopter is designed and built by the Bell Aircraft Corporation which is now called Bell Helicopter Textron.
115 mph