Quote:
Originally Posted by Doug Taylor  Ooh, here's a question for you on the topic.
Say I'm flying an aircraft that has a clean speed of 258 knots without slats. Do we need to tell anyone that, drop the slats and climb at 250 or is 8 knots not that big of a deal? |
Tony is correct. Personally, I notify them if I think ATC may not be aware of how fast we're going and appears to be putting us behind slower traffic. If we're heavy and doing almost 290 kts, they might not realize that we are moving that much faster than that 737 or RJ. Especially as we push over to 355 indicated at 10k. Same for arrival -- they might not be aware that we're going to be unable to get much under 170kts indicated before touchdown!
There is a caveat to the rule, though. If you have a clearance restriction of 250 kts (such as they often give you out of the SFO area airports), or, if there is a similar restriction on the SID, then you need to comply or request clearance to go faster.