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 4140-01-027-4116
NSN 5965-01-183-7722
NSN 5895-00-701-7064
NSN 6105-00-759-5509
NSN 5895-01-015-0543
NSN 5925-00-624-9568
NSN 5985-00-185-8338
NSN 6240-01-533-1190
NSN 6150-01-072-2275
NSN 5925-01-459-2249
NSN 5950-00-554-4870
NSN 5910-01-200-7944