Originally Posted by High Wing Drifter
Interesting Chilli. I was taught that QFF is a mean sea level pressure calculated using the actual temprature at the sensing point (as opposed to ISA for QNH). Apparently it is the pressure shown on met charts.
You could be right - it's been years since I did the Met observers course. There's no mention of QFF on the register these days, it just says "Barometer as read". Probably a case of being slightly "Q"less
