1 knot = 1.15077945 mi/h 120 knots x 1.15077945mi/h/1knot = 138mi/h (rounded)
34.75 knots
About 9.6 knots.
For a fairly new helicopter, around 120 knots. Around 150 mph, except for fast military helicopters.
32 knots =34.4
Some fast ferries around the world do over 30 knots.
Between 120-170 Knots, (138 Mph-195 Mph). Depends on wind conditions and weight of the aircraft load.
22 knots = 25.3171479 mph
105 knots is 120.832 mph
35 knots is 40.2773 mph
441 knots = 507.5 mph
382 knots = 439.6 mph