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Details and Image
Type | Model #. | Aircraft Maker / Name | Instrument Maker | Country | Construction | Date | Scale Length | Area of Use |
Disk | DH-114 | de Havilland / Heron | de Havilland | U.K. | Matal | est. 1950's | Dia. = 17.8 cm | Flight 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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