MIL-STD-250 Revision D, August 28, 1974
AIRCREW STATION CONTROLS AND DISPLAYS FOR ROTARY WING AIRCRAFT
Includes all amendments and changes through Cancellation Notice 2, December 5, 1995
Additional Comments: CNCL NO S/S
The requirements contained herein apply to the design of aircrew stations in rotary wing aircraft procured by the military departments. The contents describe the requirements for the assignment, arrangement, location, and actuation of crew station controls and related items of equipment; configuration and color of certain controls; and the relative location of various displays, including the basic flight and engine instrument groups.