Instrument for Aeronautical Calculations, Crocco Flessigrafo

Instrument for Aeronautical Calculations, Crocco Flessigrafo

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This instrument was used to trace the main section of a semi-rigid housing of an aircraft. It is based on the design of the Italian aeronautical engineer Gaetano Arturo Crocco (1877-1968). A version of the instrument is shown in Crocco’s collected works, and dated around 1912. The illustration there shows a glass lens that does not seem to be in this example.
The object is in a wooden case.
G. Arturo Crocco, Problemi Aeronautici Dalgli Albori Fino Alla Guerra, Rome: Dott. Palo Cremonese, 1933, Plate XX (opposite page 365).
Umberto D'Aquino, "Crocco, Gaetano Arturo," Biographical Dictionary of Italians, 31 (1985).
Currently not on view
Object Name
drawing instrument
date made
ca 1912
Crocco, Gaetano Arturo
place made
Physical Description
metal (overall material)
wood (case material)
cloth (lining material)
glass (level cover material)
overall: 28.2 cm x 68 cm x 49.5 cm; 11 3/32 in x 26 25/32 in x 19 1/2 in
ID Number
accession number
catalog number
Credit Line
Gift of the Museum of Science and Industry, Chicago
Drafting, Engineering
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Single Drawing Instruments
Data Source
National Museum of American History
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