Just a remark here (nothing to do with GPSRs, but everything to do with airport lat/long):
The latitude and longitude normally published for an airport is referred to as the ARP (airport reference point), and by international agreement (ICAO standard) it will be either the midpoint of the runway (single runway airport), intersection of the two runways (two runway airport) or center point averaged from all the runway thresholds (multiple runway airport).
This is very useful for those of us who use GPSRs in aircraft, but can be a nuisance for those who are in vehicle, trying to find the airport parking lot.
If you are looking for ARP's, my guess is that the UK CAA probably maintains an on-line database of them somewhere. Or, just phone the tower at the airport and they will give it to you. My Garmin 296 (an aviation - automotive - marine model) will have the ARP for the airport you refer to in its Jeppesen aviation basemap. I need to switch the 296 over from a North American Jeppesen basemap to a European Jeppesen basemap later tonight (I'm going to CH tomorrow, after flying in Alberta all week), so I will look up the ARP for you once I get this changeover done.
NB the 'aviation basemap' is not the same as the automotive basemap. It's something you buy from Jeppesen every 28 days, either Atlantic, Americas, or Pacific. You can load whichever one you want, and change them as often as you want. The Garmin basemaps (terrain, obstacles, and automotive) remain the same all the time (Americas, Atlantic, or Pacific), just like the automotive GPSRs.
PanEuropean