B-3 Drift Meter

The B-3 was used on bombers and transports when ground or water could be clearly seen. It evolved from the earlier Gatty drift meters.

Caption:
A standard military drift sight through the World War II and early Cold War eras.
Type: Artifact
Image Date: 2012
Credit: National Air and Space Museum, Smithsonian Institution
Origin: National Air and Space Museum, Smithsonian Institution
Creator: Dane A. Penland
NASM2012-02109
Innovations
Navigation Methods
 
A standard military drift sight through the World War II and early Cold War eras.