As all three of my gunners are relief pilots, we relieved each other every four hours.

The remaining space was used for a pad on which the relief pilot slept.

Wouldn't hurt to have a second relief pilot.

Each base was assigned a full-time pilot and a seasonal relief pilot who covered two bases.

"But I didn't know we had a relief pilot down here."

The relief pilot threw an almost incredulous look over his shoulder.

Rarely, such relief pilots are called third officer.

George, my son tells me that he must get his weight down to one hundred and twenty-six pounds in order to qualify as relief pilot.

Recently the Commission had forced her to take a relief pilot; there was just too much for one pilot to do.