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.

Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.

Object Details

Country of Origin

United States of America

Type

INSTRUMENTS-Navigational

Physical Description

Sighting head, missing periscopic element.

Dimensions

3-D (Without Eyepiece): 26.7 x 15.2 x 22.2cm (10 1/2 x 6 x 8 3/4 in.)
Other (With Eyepiece): 26.7cm (10 1/2 in.)

Materials

Aluminum, brass, copper, cork, glass mirror, lenses, paint, plastic

Inventory Number

A19500075025

Credit Line

Gift of the City of Los Angeles

Data Source

National Air and Space Museum

Restrictions & Rights

Open Access (CCO)
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