Calculator [Dalton Computor]

Object detail

Accession number

2004.6

Maker

Air Ministry
Royal Air Force

Production period

1930s
1940s

Description

Dalton calculator, manually operated navigational aid Mk IIIF. Isothermal calibration. A rectangular box of bakelite with a metal face and a revolving disc. On the reverse face of the instrument, is a true course 360° compass with wind drift adjustment calibrations. On the top right hand corner of the compass face is a knob for the paper graph feed, housed under the Perspex glass. Stamped on back "A M / NAVIGATIONAL COMPUTOR / MK. IIIF* REF. NO. 6B/214".

Marks

DRIFT PORT / VAR EAST / TRUE COURSE / VAR WEST / DRIFT STBD Printed
A M / NAVIGATIONAL COMPUTOR / MK. IIIF* REF. NO. 6B/214 Printed

Media/Materials

Processed Material/Synthetic/Plastic/Bakelite
Processed Material/Metal

Collection

Bomber Command Collection

Credit Line

Air Ministry et al. Calculator [Dalton Computor], 2004.6. The Museum of Transport and Technology (MOTAT).

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Classification

Instrument, Navigational Tools & Equipment for Science & Technology Surveying & Navigational T&E Navigational Equipment

Collection type

Air and Space Transport

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