Compass, Magnetic Direct Reading, Type B-16 US Army Air Force WWII PV-2 Harpoon The front mounting bracket is

The front mounting bracket is set in place but not screwed in

such as the fighter P-38 medium bombers B-25 and B-26

and clockwise in the instance of positive G's

An example of aircraft in which this appeared is the Nieuport 28 fighter

to show the direction in which the airplane is pointing

Compass, Magnetic Direct Reading, Type B-16 US Army Air Force WWII PV-2 Harpoon The front mounting bracket isThe Army Type B 16 Direct Reading Magnetic Compass was used across a number of US Army Air Corps and Air Force aicraft during WWII, including heavy bombers B 17, B 24, B 29, medium bombers B 25 and B 26, as well as light bomber A 20, according to the Accessories Interchangeability Chart dated Feb 1945. It was also used in versions of US Army Air Force WWII fighters P 38, P 39, P 40, and P 47, as well as transports C 46 and C 47. This model was made by