By: Vega ECM - 9th June 2013 at 14:59
I’ve just been given a broken one of these in the hope I can repair it. Anyone have an AP or manual?
Jim if you can’t place it in a museum I, as somebody who repairs instrument (part time, including very old instruments), would you consider letting it go so I could squeeze a bit more real use out of it?
By: Jim C - 9th June 2013 at 01:14
Thanks for the info ret-eng.
If any museum would like to have for display please let me know 🙂
By: ret-eng - 8th June 2013 at 22:28
It is an Airspeed Calibrator made by R.W. Munro, the base probably contains mercury. I used a newer one of these for many years of my working life, this was purchased in the 50’s, and I believe it is still in use. They are used obviously for calibrating ASIs, and also low pressure instruments and pressure switches. These were very accurate for their day, but something looks wrong with this one as the needle should be on the zero mark. The one we used had a fine chain drive and this was know to come adrift once in a while, and was get a job to replace it. I am guessing but the 42 in the serial number could be the date of manufacture.
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June 7, 2013 at 11:18 pm