Bearing Circle, US Navy, Mk I Mod 2, 1943, in Wooden Case Beech The Bomb Release Control (Intervalometer)

The Bomb Release Control (Intervalometer) permitted a bombardier to control the number of bombs dropped per release and their impact spacing

The manual covers the bombs and bombing equipment in use by the USAF during the mid 1950's

interconnected to the heading tracker

with BU AERO US NAVY embossed in very small letters on the center of its face

Bearing Circle, US Navy, Mk I Mod 2, 1943, in Wooden Case Beech The Bomb Release Control (Intervalometer)This 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