Fastest speed attained by a helicopter

Fastest speed attained by a helicopter (401 km/h)

/fact/fastest-speed-attained-by-a-helicopter

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Fastest speed attained by a helicopter (401 km/h)

is 2/5 of Fastest speed attained by a manned rocket sled (1,017 km/h)...more
is 2 x Fastest speed attained by a steam train (202.6 km/h)...more
is 4 x Comfortable driving speed (100 km/h)...more
is 5 x Top speed of a striped marlin (81 km/h)...more
is 5 x Top speed of a lion (80 km/h)...more
is 5 x Top speed of a blue wildebeest (80 km/h)...more
is 10 x Top speed of an African Bush Elephant (40 km/h)...more
is 10 x Top speed of a Great White shark (40 km/h)...more
is 20 x Top speed of an Eastern Gray Squirrel (20 km/h)...more

If this was a standard unit ...