I find taht 300 KTS works fairly good in the London TMA. Our ECON descent is 273 KTS which is way to slow, but when I hear jets cruising at 0.74 and then descending at 240 KTS, that's just not right.
High speed all the way
The problem is that almost no one else seems to be going at 300kts anymore as it just so inefficient fuel burn wise. Why is 273kts too slow? Many other operators are saying they want around 250kts or even less at the moment and some as slow as 230kts especially at night when the traffic allows.