KLM Posky 747-200

[Launchbury]

I've flown that beast as well and it's a hard aircraft to slow down!

I have also gone over 250kts without clearance but have not been penalized. I think that to get the penalty, you have to exceed the 250 for
a certain amount of time, or go over 250 by a certain amount. I have taken a hit for going 290kts but never 260kts.

To slow the aircraft, bank in one direction and give it a fair bit of opposite rudder. It will cause you to go into a slip that sheds a lot of
altitude quickly without building speed.