Hi aw,

A few more pieces of information that may be of interest;

The views are generally facing south so you will get good views of Terminal 2 (European airlines) the Southern runway 27L/09R and Terminal 4 ( British Airways intercontinental). For most of the time as thw wind is from the west you will get good views of the planes landing and queuing up for take off on the Southerly runway ( the runway use is alternated at 3pm ie if aircraft werelanding on the southerly runway before 3pm then after 3pm the runway will be used for take offs.

You will not get a good view of Terminal 3 aircraft (intercontinental ) as buildings are in the way and the same for Terminal 1( BA shorthaul) but you shouls see some of them as they land/taxi towards the runway.

If thw wind is from the east then you will get views of the aircrat at rotation as the stat of the runway is a long way to the west.

If you are at Heathrow any day (apart from Saturday) around 10:30 am then you will see the BA Concorde depart for JFK.