B737 Departure Speeds
I live not too far from Henton NDB (CPT 3B/4C SID Ex Luton)and Easyjet 737's are a familiar sight.Also seen are 737's from (I believe)British World Airlines.I understand they may be operated on behalf of EZY but their departure speed seems somewhat lower than their colleagues at EZY.Is this simply due to the fact that a different variant of the a/c is involved? Alternatively,is it Company operating procedures?I concede that it is difficult to make judgments from the ground but I would estimate the BWL a/c are 30kts (or more) slower than the EZY 737's.It
would not appear to have anything to do with the 250kt ATC speed restriction as only BWL a/c seem to be affected.