Not quite as mysterious as the ‘Disk Calculator’ that (as far as I know) we never got to the bottom of, but this item of precision engineering has been puzzling me recently and thought someone here might be able to throw some light on it.
Behind this very incomplete front panel is some exquisite engineering including a ‘Ball Resolver’, an Infinitely variable gearbox and zero backlash 100DP gearing.
My understanding is that this is part of an aircraft navigation system (c1960 and 1980?)
Part of a mechanical analogue computer used for solving navigation differential equations? These were quite common before real time digital computation got small and quick enough to take over.
It could be an area navigation device which uses inputs from the direction and airspeed indicators to calculate Lat and Lon position. However the two subsidiary dials don’t have the sort of scales such a device might have. It could be used for some other form of calculation such as water volume based on pressure and orifice size.
CS
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