Archive of Collections

Details and Image

TypeModel #.Aircraft Maker / NameInstrument MakerCountryConstructionDateScale LengthArea of Use
de Havilland / Heronde Havilland
Matalest. 1950'sDia. = 17.8 cmFlight Management

Comment: "1) Used for weight and balance calculations to make sure the aircraft is not tail heavy or nose heavy 2) A vey well made slide rule with a main disk and 2 smaller concentric disks, one on each side."

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