Convert Millimeters to Hectopascals Jeppesen Manual
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Convert Millimeters to Hectopascals Jeppesen Manual
Ladies and Gents, can anybody explain how to use the Millimerters to Hectopascals convertion table in the Jeppesen Manual.
Don't know, (presumably you're referring to millimetres of mercury) but if you would like to convert millibars to hectopascals, the conversion factor is 1/1.
By the way, for UK readers, the UK will convert from mb to hpa in September this year. In order not to increase RTF loading, it has been agreed in principle that the use of the word millibars/hectopascals when passing a pressure setting numerically less than 1000 will be discontinued, on the grounds the UK is the only country in the world to do this.
By the way, for UK readers, the UK will convert from mb to hpa in September this year. In order not to increase RTF loading, it has been agreed in principle that the use of the word millibars/hectopascals when passing a pressure setting numerically less than 1000 will be discontinued, on the grounds the UK is the only country in the world to do this.
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Thanks Rhyayader, I am refering to the convertion chart in the Jeppesen Manual.
Last edited by bluehawaii; 18th Feb 2011 at 22:29. Reason: typo error
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<<that the use of the word millibars/hectopascals when passing a pressure setting numerically less than 1000 will be discontinued>>
Extraordinary and foolhardy decision methinks. If I had a quid for every American pilot who has read back "995 millibars" as "2995" I'd be extremely rich. Obviously there is nothing to prevent controllers from stating the words if they're "belt and braces" types, as I was.
Extraordinary and foolhardy decision methinks. If I had a quid for every American pilot who has read back "995 millibars" as "2995" I'd be extremely rich. Obviously there is nothing to prevent controllers from stating the words if they're "belt and braces" types, as I was.
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Originally Posted by HEATHROW DIRECTOR
Extraordinary and foolhardy decision methinks. If I had a quid for every American pilot who has read back "995 millibars" as "2995" I'd be extremely rich. Obviously there is nothing to prevent controllers from stating the words if they're "belt and braces" types, as I was.
Only that's what an ATIS I had the other day said and I think that's a smashing idea to avoid confusion.
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Not in the UK methinks. "Altimeter" is, I believe, a US expression for the QNH setting in inches. That's where a problem may arise: UK controller says "QNH 993", US pilot says "Altimeter 2993"... Particularly for settings below 1000 mb/hP, I believe that the measurement system should be included.
