Tower wind
Thread Starter
Tower wind
At large airfields where is the wind given by the tower measured?I recently landed at a large airfield where the wind at touchdown was almost 90 degrees out to that given with the landing clearance.
Usually from an anemometer placed furthest away from any ground effect. Hence what you experienced was probably due to effects peculiar to that approach/touchdown area.
I once had a pilot who complained bitterly about an aircraft ahead slowing right down and reducing separation. When on the ground, the gentleman apologised and reported a massive wind shear at low level that turned a tailwind into a headwind at touchdown.
I once had a pilot who complained bitterly about an aircraft ahead slowing right down and reducing separation. When on the ground, the gentleman apologised and reported a massive wind shear at low level that turned a tailwind into a headwind at touchdown.
Guest
Posts: n/a
ICAO Annex 3 recommends 'When local routine and special reports are used for departing aircraft, the surface wind observations for these reports should be representative of conditions along the runway; when local routine and special reports are used for arriving aircraft, the surface wind observations for these reports should be representative of the touchdown zone'.
This has been in the UK rules for several years and I imagine all large airports must surely be complying by now. It usually requires several measurement sites - typically adjacent to the TDZ and, if these are not representative of the conditions along the runway because of local topography or whatever, other sites to give the 'general' wind.
This has been in the UK rules for several years and I imagine all large airports must surely be complying by now. It usually requires several measurement sites - typically adjacent to the TDZ and, if these are not representative of the conditions along the runway because of local topography or whatever, other sites to give the 'general' wind.
Thread Starter
The problem always seems to be associated with landing towards the east at Crawley international.I wonder if it has something to do with the grass embankment blanking the wind as you often seem to experience a big sink as you fly past it just as you are about to start initiating the flare
Join Date: Jan 2004
Location: UK
Posts: 34
Likes: 0
Received 0 Likes
on
0 Posts
The wind
At Luton it comes from anenometers near the threshold of the runway in use. That said, there are well-known local effects which make for sporting conditions on short final in anything other than a calm-ish wind...
They're on top of each GP antenna.
Join Date: Jun 2008
Location: Back from Canada
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
EGKK 08R Antenna
So where is it at Lgw on 08R?I am guessing not near the earth bank?
Anemometers are sometimes dipicted on the Aerodrome Chart and or in the Textual Data, in the UK at least, I see Luton doesn't show them in either!
