Bearing Circle, US Navy, Mk I Mod 2, 1943, in Wooden Case Beech ~6 inches wide

~6 inches wide

interconnected to the heading tracker

This manual is focused on those gun systems used in B-17

Of course not

Bearing Circle, US Navy, Mk I Mod 2, 1943, in Wooden Case Beech ~6 inches wideThis is a WWII era US Navy Ships Bearing Circle, Mk I, Mod 2 in its original wooden case, made in 1943 by The Lionel Corporation. This model has two adjustable vanes (peep and far) with prism for viewing compass bearing and spirit level. The Bearing Circle was placed on top of a magnetic compass or gyro repeater and used to measure bearings of terrestrial objects. The Peep vane and Wire vane are lined up with the object of interest, whose bearing is