Oxygen Indicator, USSR, Oxygen Indicator IK-24N (ик-24н) Martin The indicator measure and conveys

The indicator measure and conveys the system oxygen pressure (i

Oil Pressure

The knob on the face should adjust the perspective indicator at center

just try to hear that over the cacophony of multiple radial engines

the aircraft was traveling at 820 km/h

Oxygen Indicator, USSR, Oxygen Indicator IK-24N (ик-24н) Martin The indicator measure and conveysThis is a fine example of a Cold War era, Soviet, Oxygen System Indicator as used in the USSR Air Force aircraft. The indicator measure and conveys the system oxygen pressure (i. e., quantity) up to 150 kilograms square centimeter, via the pointer in the upper half of the display. The indicator also provides visual indicator of oxygen flow similar to the WWII era "blinker" device: as the pilot inhales exhales, the two white 'eyelids' below center