Colin Youngs wrote:
"Martin Rowley" schreef in bericht
...

: [BTW, quick conversion from km/hr to knots ...
:
: divide km/hr figure by 2
: add the *tens* figure of that result to itself ...
: e.g., 80 km/hr - (divide /2) - 40 (add tens fig) -44 knots. ]

Even quicker conversion from km/hr to knots
http://www.weatheronline.co.uk/windrpopup.html

Colin Youngs
Brussels



Quicker than that is to google 80km/hr in knots

i.e.

http://www.google.co.uk/search?hl=en...Search&meta =