PPRuNe Forums - HN and HJ

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framer

4th Jun 2015 02:21

HN and HJ

Why is the abbreviation for " hours of night " HN while the abbreviation for "hours of day" is HJ ?
Is it something to do with the French language?
Thank you in advance :)

framer

4th Jun 2015 06:50

Ah thank you , makes sense now.

mustafagander

4th Jun 2015 10:17

There's quite a bit of French in aviation. Hangar, aileron. GR for hail just for a start.

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