Aircraft Instruments Technical Instructions, Air Corps Technical School, 1939 C-130 Measures 4 inches diameter and

Measures 4 inches diameter and ~11 inches deep

but not for a full eight days

the position of a graduated card attached to the float is visible through a glass cover in the front of the bowl

and the knob rotates

Weston model 1534

Aircraft Instruments Technical Instructions, Air Corps Technical School, 1939 C-130 Measures 4 inches diameter andHere is a pre WWII era Technical Instruction reference manual for students of the Air Corps Technical School, published in October 1939, for use in training aircraft instrument technicians of the US Army Air Corps. This 258 page, 8. 5 by 11 inch technical manual covers all of the most commonly used instruments used in aircraft of the era, including pressure, temperature, and quantity gauges, compasses, turn, climb, and airspeed indicators, gyro