Course and Speed Calculator

Air Ministry, Manufacturer;  Hall Telephone Accessories (1928); 

1928
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Details


Maker and Role
Air Ministry, Manufacturer
Hall Telephone Accessories (1928)
Production Date
1928
Description
Course and speed calculator with airspeed scale up to 310mph and windspeed up to 70 mph. Mk II A. Forerunner of modern Dalton computer, in common use by RAF 1939-1942 until made obsolete by Dalton computers.
Media/Materials
Organic/Vegetal/Wood
Processed Material/Metal
Signature/Marks and Type
STORES REF No. 6B/120 / COURSE & SPEED CALCULATOR / MK II A / HALL TELEPHONE ACCESSORIES (1928) LTD Stencilled
COURSE & SPEED CALCULATOR / MK.IIA. / H.T.A.(1928) LTD / AM / 6B/125 Impressed
RAF (1928) COURSE & SPEED CALCULATOR WITH AIRSPEED SCALE / UP TO 310 MPH !! AND WINDSPEED / UP TO 70 MPH. PRESENTED BY / C.K. SILCOCK ESQ. Label
Accession No
1965.463
Credit Line
Air Ministry et al. 1928. Course and Speed Calculator, 1965.463. The Museum of Transport and Technology (MOTAT).
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