Babylon
Well-Known Member
The boat's old 2.5" diameter barometer is rubbish: tap it and it jumps up or down 5mb quite randomly. It was on the forward bulkhead with a cheap 2.5" diameter clock, both on a varnished wood strip with pointless brass corners - but the forward bulkhead was a stupid place for the boatbuilder to drill holes because the instruments are needed at the chart-table, so I moved it. Didn't stop the barometer being rubbish though.
I keep meaning to replace it, to keep up the discipline of recording the reading when on longer or offshore passages, but assume that most of the available units have the same dodgy mechanism inside - that the expense is in the shiny brass and the chandler's markup, and that it'll be another waste of money.
Re getting a Vion unit that records the trend, I don't see the point in fitting yet another piece of electrical kit, which could fail. If one's on passage, then noting the hourly baro reading in the log will soon enough give you the trend - assuming the pressure hasn't fallen because you've bumped into a wavelet!
I keep meaning to replace it, to keep up the discipline of recording the reading when on longer or offshore passages, but assume that most of the available units have the same dodgy mechanism inside - that the expense is in the shiny brass and the chandler's markup, and that it'll be another waste of money.
Re getting a Vion unit that records the trend, I don't see the point in fitting yet another piece of electrical kit, which could fail. If one's on passage, then noting the hourly baro reading in the log will soon enough give you the trend - assuming the pressure hasn't fallen because you've bumped into a wavelet!
