A few points:. .250kts max below FL100, wether on a SID or not, unless cancelled by ATC.. .Gatwick deps with 180 degree turns, speed isn't supposed to be cancelled by atc until turn complete to prevent deviation from noise routes. All deviations are automatically logged, and most result in fines nowadays, which airlines will try to blame on someone else, ie atc.. .Heathrow 2 minute deps, from the catching (TC) end are usually about 91 seconds. Generally fine, but a bit sporting last week with 270/9kts on ground and 285/48kts at 4000', get airborne, climb a little then hover and wait for one behind to catch you!. .Old point, but always a goody, A340 long haul dep speed often 190ks ish. Technically same group as 'real' jets. Nice. Also new DHC8 with go faster stripes, extremely slippery, almost caused a few embarrased looks as it overtakes BA46 ahead!