You are given a runway bearing and the circuit direction (left-hand or right-hand). Work out the heading of each leg: every leg is the previous one turned 90° in the circuit direction.
Left-hand circuit: turn left each time, so subtract 90°. Runway 090 → crosswind 360, downwind 270, base 180.
Right-hand circuit: turn right each time, so add 90°. Runway 090 → crosswind 180, downwind 270, base 360.
Downwind is always the reciprocal (±180°) whichever way you turn. Keep answers between 001 and 360 (000 is accepted as 360).
How to play: type the three bearings, tap CHECK. The compass reveals the real bearings — green for correct, red for wrong. Ten runways per round, scored out of 10; your rounds are saved on this device.
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