T.O. 33d4-6-212-44 calls this item a control trailer assembly where monitors are seated while doing testing on jet engines
A device designed to test the performance and/or operational characteristics of aircraft engines. For mobile items, see test stand, engine, semitrailer mounted. See also stand, aircraft engine; and stand, maintenance, aircraft engine.
Classification: Test benches
NSN 6150-01-210-2211
NSN 5910-01-359-4071
NSN 6620-00-296-6762
NSN 5935-01-485-3572
NSN 7035-01-604-6735
NSN 5925-00-704-4491
NSN 4140-00-753-9204
NSN 5855-01-266-1645
NSN 5990-00-557-7443
NSN 5905-01-238-2400
NSN 5905-00-003-3963
NSN 6145-01-364-4853