Douglas Model DC-2 Librascope balance computer
Country
USA
State/Province
California
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Object detail
Description
Used for calculating the distribution and loading weights for Douglas DC-2 aircraft. Manufactured by the Meredith instrument company, Inglewood, California. Librascope was a Glendale, California division of General Precision, Inc., founded in 1937.
Four DC-2s were operated in Australia, initially by Australian National and Holyman Airways and later by the Royal Australian Air Force.
Four DC-2s were operated in Australia, initially by Australian National and Holyman Airways and later by the Royal Australian Air Force.
Classification
TRANSPORT Aviation aircraft instruments
Production place
Media/Materials description
aluminium casing with acetate cover
History and use
Together with the Boeing 247, the Douglas DC-2 is considered to be the first of the modern airliners. Both these monoplane designs incorporated features (such as all metal construction, retractable undercarriage, electronic navigational aids and variable pitch propellers) that remain still as industry standards.
An early mechanical computer, the Librascope highlights the airliner's rapaid design evolution and sophistication during the 1920s and 1930s.
An early mechanical computer, the Librascope highlights the airliner's rapaid design evolution and sophistication during the 1920s and 1930s.
Registration number
H2210
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