Lockheed P-80 Fighter Blueprint, General Arrangement, 1949 Hudson was primarily used in aircraft

was primarily used in aircraft of the Japanese Army such as the Type 4 Mitsubishi Ki-67 Peggy Bomber

This is a rare example of the post WWII ID-165 indicator for the APA-44 electronic analog computer used in the APQ-24 bombing-navigation system used in the US Air Force B-29 Superfortress

We assume that these are identification marks of the timepiece and its manufacturer

25in diameter and ~3in deep

The knob rotates the barometric pressure adjustment

Lockheed P-80 Fighter Blueprint, General Arrangement, 1949 Hudson was primarily used in aircraftThis is a blueprint of the US Air Force Lockheed P 80 Shooting Star, the first jet propelled fighter of the USAF to see combat. This document came to AeroAntique from the estate of a Lockheed aeronautical engineer who worked on projects with C. L."Kelly" Johnson. This blueprint appears to be a reduction of the General Arrangement master blueprint showing views and dimensions of the front, right side, and top of the P 80 aircraft. The inset table lists