TAS (nm per min) x crab angle = crosswind comp.
You can juggle too - Crab Angle = crosswind comp / TAS nm per min.
X/W or H/W....
30* - 90% reported
45* - 75%
60* - 50%
I still use my Jepp wizzwheel but only very rarely these days - mainly
in the sim when poofteenths matter. I'm not against the Magenta kids
using a calculator but only if it doesn't take too long and they aren't in
control (ie PNF).
Metres Per second.... WTF? Do I need to know that?
Flying a 3.3* profile decent and that 1m happens to equal 3.28 ft gives
the dist required to BOD. Helps if you have an altimeter reading metres
though. More applicable to us international jocks.