Hi there,
I'd need some help with the following question:
The relative bearing to a beacon is 270°R. Three minutes later, at a ground speed of 180 knots, it has changed to 225°R (corrected! previously 255). What was the distance of the closest point of approach of the aircraft to the beacon?
Correct answer would be 9 nm.
I just can't figure it out at the moment (perhaps it's to late, should go to bed) - there must be a formula for this
Thanks!