120 Knots is 138.12 miles per hour.
100 Knots is 115.1 miles per hour.
320 miles hours
124/1.15=107 mph
120 knots is 138 mph.
1 knot = 1.15077945 mi/h 120 knots x 1.15077945mi/h/1knot = 138mi/h (rounded)
Assume you want V2 speed. Set flaps 10. This should give you V1 of about 120 knots. Rotate at 140 knots and climb out at 148 knots.
34.75 knots
About 9.6 knots.
Fast
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.
35 knots is 40.2773 mph
441 knots = 507.5 mph
55 knots is 101.86km/h
382 knots = 439.6 mph