North American Aviation Military Aircraft Brochures, lot of 33, 1950s Sperry Static pressure is the atmospheric

Static pressure is the atmospheric pressure of the air at whatever altitude the aircraft may be flying

This is an original WWII-era Orterkompass OK42

B (bombers) will already be familiar to most Service pilots

This soft-cover manual is in good condition given its age

This Airspeed Indicator is a WWII-era US Army Air Force Type D-7

North American Aviation Military Aircraft Brochures, lot of 33, 1950s Sperry Static pressure is the atmosphericThis is an original lot of 33 individual public information brochures on aircraft made by the North American Aircraft Aviation, Inc. and in service by the USAF and USN in the late 1940's and early 1950's. The three colors of the brochures may indicate 3 different series, blue, green, and orange. Each brochure includes a cut out stand and instructions for mounting the photo of the aircraft on the stand. Each tri fold brochure measures 9. 5 x 5 inches.