You are the pilot of a small aircraft which for some reason encounters a series of gates through which you must negotiate a passage to reach the far side of the screen. Each time you do that you will receive a bonus of 50 units of fuel.

On your next trip the gates will be a little narrower and it will become increasingly difficult to stay in the air. If you fail to pass through a gate you lose 40 units of fuel and if you run out of fuel you will suffer a horrible crash. Use Q and C to move your aircraft up and down.

Air Passage was written for the BBC B by A. P. Wood of Winscombe, Avon.