Archive of Collections

Details and Image

TypeModel #.Aircraft Maker / NameInstrument MakerCountryConstructionDateScale LengthArea of Use
Air Line Flight CalculatorUnknown
Plastic1940'sDia. = 11.7 cmFlight Planning and charting

Comment: 1) Flight planning and navigation 2) This item has an actual disk in disk slide rule with C and D scales 3) This interesting item was owned by a C47 (DC3) and TWA Constellation pilot 4) No manufacturer or other identification can be found on the rule 5) Unique wind correction to determine true course on the reverse side

Image 1

Image 2