B-24 G, H, J Liberator Bomber Flight Manual and Erection and Maintenance Manual H-46 since all that is required

since all that is required of him is the proper response to its indicators without the necessity of making any mental computations

when rotated

but with markings for engines 1 & 2 or L & R

The AN-5773-1 Engine Gage Unit displayed 3 metrics with one instrument:  Oil temperature (from 0-150 deg C)

B-24 G, H, J Liberator Bomber Flight Manual and Erection and Maintenance Manual H-46 since all that is requiredThis is an original WWII era 109 page Flight Manual for the B 24 G, H, J Liberator Bomber and PB4Y Privateer dated August 1944, and an original partial (1 491 of 630 pages) Erection and Maintenance Manual for the B 24 D, G, H, J Liberator and PB4Y Privateer dated May 1944. The binder is missing its cover but still retains the pages.