ready room

a room in which members of an aircrew await their orders for takeoff.

Origin of ready room

An Americanism dating back to 1940–45

Alone in the ready-room was a soldier in the uniform of Abaria.

Quest of the Golden Ape |Ivar Jorgensen
The colonel stopped talking and let his eyes wander about the Ready-Room again.

Dave Dawson on Guadalcanal |Robert Sydney Bowen
All pilots assigned to special duty will go below for breakfast, and then report to the Ready-Room for briefing!

Dave Dawson on Guadalcanal |Robert Sydney Bowen
All of you are to report to the Ready-Room, on the hangar deck, at five o'clock this afternoon.

Dave Dawson on Guadalcanal |Robert Sydney Bowen

And together they made their way to the Ready-Room on the hangar deck.

Dave Dawson on Guadalcanal |Robert Sydney Bowen