Thanks to modern transponders, and the wonders of the internet, there are now a load of great tools for tracking flights.
I’ve already mentioned the live heathrow radar and the clever heathrow arrivals photos available at HeathrowCam – but I thought I would summarise those and the other great tools available.
Track planes on iPad or iPhone.
BA Boeing 777 landing at Heathrow, captured by Heathrowcam.net
I’ve just come across a wonderful site called ‘Heathrow Cam‘
The site uses a ADS-B receiver and a fixed, motion sensitive camera to capture an image and details of incoming flights. (ADS-B is not ‘radar’ but it’s a transponder radio which received information broadcast by commercial airlines [...]