Instrument Flight, Part 1 Basic Air Work, US Navy 1944 RCAF and displays the direction on

and displays the direction on a compass card mounted at a 45 degree angle

They were essentially timers for communications radios that broadcast a fourteen second carrier wave every minute

It was the people of rich Russia who were half-starved

and Bell UH-1 and AH-1 Cobra Helicopters per their maintenance manuals

Here is an engine Torque Pressure Indicator

Instrument Flight, Part 1 Basic Air Work, US Navy 1944 RCAF and displays the direction onThis original WWII era instructional book, Instrument Flight Part One, Basic Air Work, was published by the US Navy in 1944. This manual came to AeroAntique from the estate of a pilot of an SBD Dauntless Dive Bomber, although not marked with its former owner's name. The 155 page book measures ~4. 5 inches by ~7 inches, and is in good condition given its age.