Dear Baron, Thanks for the figures.
Do you think it would be reasonable to say (in my Rules of thumb collection): Air speed If you can see an airfield windsock and it is horizontal the wind speed is at least 8�metres per second; if the windsock is only halfway to horizontal the wind speed is about 4�metres per second. You refer to 'A common type' of windsock. Do you know if there are specifications for a 'standard' airfield windsock? Cheers, Pat Naughtin CAMS Geelong, Australia on 2002-07-18 23.49, Carter, Baron at [EMAIL PROTECTED] wrote: > pat, > > Wind direction, strength and variability is usually assessed by observing > the airfield windsocks, which indicate the direction and variability and > provide some idea of the surface speed. Indication of wind speed will vary > with the type of windsock. A common type indicates a speed of 15 knots or > greater when it is horizontal and about 7 or 8 knots when drooping at 45�. > > cheers > Baron Carter > > -----Original Message----- > From: Pat Naughtin [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, 17 July, 2002 20:07 > To: U.S. Metric Association > Subject: [USMA:21206] Windsocks > > > Dear All, > > Can anyone direct me to a source that will tell me how to use a windsock to > estimate wind speed. I read something about this years ago � but I have > since forgot. > > Thanks, > > Pat Naughtin CAMS > Geelong, Australia >
