Silhouette Handbook of US Army Air Forces Airplanes TO 00-40-1 1942 Luftwaffe The D-1 Pitot Tube had

The D-1 Pitot Tube had two designs

The alternating Munsell green and white markings were typical of US Navy aircraft instruments

VBC (Vertical)

while the pointer rotates per the signals received from the gyro

Silhouette Handbook of US Army Air Forces Airplanes TO 00-40-1 1942 Luftwaffe The D-1 Pitot Tube hadHere is an original WWII era recognition manual, the Silhouette Handbook of US Army Air Forces Airplanes, dated September 1942, Technical Order No 00 40 1. The manual illustrates 48 aircraft of the USAAF in service or experimental as of Sept 1942, including combat aircraft B 17E, XB 19, B 25, A 20, P 35, P 51, cargo and liaison aircraft, and training aircraft. Each aircraft is illustrated on a dedicated page. The 8. 5 x 11 inch manual is in good