Computer - Height and Air Speed (Mark II)
Maker and role
Henry Hughes and Son Limited, Manufacturer
Production date
1939
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Object detail
Accession number
2004.118
Description
Computer for reading height and air speed. The computer consists of 3 circular discs of decreasing size, placed one on top of the other. The bottom disc has 3 holes along the border and reads: SET AND READ HEIGHT, SET AND READ AIR SPEED. Attached to the bottom disc with a silver knob, is a metal plate marked: TEMPERATURE. On the middle disc, there are 2 number scales. Overlapping this disc, is a metal plaque attached with a silver knob. The plaque is labelled: IND HEIGHT, and there is a number scale marked: GROUND PRESSURE. Also overlapping the middle disc, are 2 black, arrow-shaped markers, each with the letter 'C' stamped on them. Around the edges of the top disc, is a number scale with 2 sets of numbers written with it. There are also instructions stamped in black and red on the top disc. It is adjustable and there are 2 black indicators attached to the disc. Each is marked I. The discs are all made of metal with a silver colour and black details.
Marks
COMPUTOR HEIGHT AND AIR SPEED MARK II REF NO.6B/131 HENRY HUGHES & SONS LONDON NO.6316/39 Inscribed
Media/Materials
Collection
Credit Line
Henry Hughes and Son Limited. 1939. Computer - Height and Air Speed (Mark II), 2004.118. The Museum of Transport and Technology (MOTAT).
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