What s your rule of thumb?
D and F,
As no-one else has yet replied...
In the UK, standard ATC rule of thumb is 3nm per 1000ft fo descent . Today I witnessed one of your Embraers arriving at the Ice Station, 40nm from Touchdown descending through FL270 and a ground speed touching 500kts....and it was going to be No.7 in the sequence. I am sorry, but even with over a quarter century of operational controlling experience I cannot make that work, so there is only one place for it to go - the holding pattern.
DD