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A sensitive altimeter measured the altitude of an airplane above sea level and allowed that reference to be set by a knob. This is the first model produced by Kollsman. Doolittle used the same type of altimeter in his historic 1929 "blind flying" test flight.

 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
Date 1931 Country of Origin United States of America Type INSTRUMENTS-Flight Management Manufacturer Kollsman Instrument Company
 Physical Description 80mm diameter, 170 long; range 0 to 20000; black with white figures; 1931. Dimensions 3-D: 9.5 × 7.5 × 9.2cm (3 3/4 × 2 15/16 × 3 5/8 in.)
 Materials Metal, rubber, paint, glass, radium paint
 Inventory Number A19570042000 Credit Line Transferred from the Department of Commerce Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
For more information, visit the Smithsonians Terms of Use.