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A turn-and-bank indicator tells the pilot the attitude of the plane in the sky relative to the ground. This bank indicator uses a ball and curved glass tube to show rotation about the vertical axis. Gravity holds the ball to the lowest part of the tube, which moves from side to side as the airplane banks. The turn indicator uses a gyroscope to show rotation about the longitudinal axis. It has a pointer that indicates in degrees per unit of time the rate at which the craft is turning.

 Display Status

This object is on display in General Aviation at the Steven F. Udvar-Hazy Center in Chantilly, VA.

General Aviation
Object Details
Date c.1940 Country of Origin United States of America Type INSTRUMENTS-Flight Management Manufacturer Longines-Wittnauer Watch Co.
 Physical Description Double doghouse turn indicator and ball bank indicator. Dimensions Other (Face): 7.9cm (3 1/8 in.)
 Materials Glass and metal
 Inventory Number A19780408000 Credit Line Gift of the Bendix Corporation Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
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