Torque Pressure Indicator US Gauge AW1842 OH-6 Cayuse Loach Helicopter Shackleton The small protrusion right of

The small protrusion right of the digit display counter was likely used to reset the counter to zero once pressed

The equipment is designed for remote control operation and may be installed with provisions for dual control or for signal control

or Sacramento Air Material Area at McClellan Air Base

It is in nice condition given its age

this pre-WWII instructional manual is for the Aircraft Instruments course of The Department of Mechanics in The Air Corps Technical School

Torque Pressure Indicator US Gauge AW1842 OH-6 Cayuse Loach Helicopter Shackleton The small protrusion right ofHere is an engine Torque Pressure Indicator, 0 112. 5 PSI, as appeared in the Vietnam War era light helicopter Hughes OH 6 Cayuse, aka Loach. (see photo of instrument panel, indicator is at upper center). Measures 2. 5 inches diameter by 2. 5 inches deep. .