Topic: | Re:How accurate is heathrow webtrak? | |
Posted by: | Richard Jennings | |
Date/Time: | 10/01/08 00:04:00 |
"Can it be categorically stated that the flight paths shown are actual flight paths and not 'amended' as I believe a number of correspondents on this point believe that what they see 'overhead' is shown differently on Webtrak 48 hours or so later." In most cases, and certainly in several that have been discussed here and on the Putney forum, I think it's a mismatch between where people think an aircraft is relative to the ground and where it actually is. The one case that remains a mystery to me is the one that Mike Russell raised at the start of this thread. (See my post of 13/11/07 14:48) Apart from that, I've no evidence that the tracks shown on WebTrak are "amended" in any way (apart from the slight misalignment of the map which is only 150 metres or so), and plenty of evidence that planes on an unusual track are faithfully recorded on WebTrak. Why the 48-hour delay? They say it's "for security reasons". That's all I know. The contact I've used for any query or suggestion is noise_complaints@baa.com. If they can't deal with it, they pass it on to the WebTrak team at Lochard, the Australian developer of the system. |