Originally Posted by Will_McKenzie
the EGLC tower controller issued SID (DOV 4T) and also said "maintain altitude 3A" .....I was just wondering why the level restriction was even mentioned as the restriction is on the charts?
The ATC "maintain altitude 3A" NEGATES THE STEP CLIMB. It is a revised clearance. It means MAINTAIN 3A FULL STOP.This is where some pilots have been going wrong having stepped to 4A after having being instructed to maintain 3A. (Not very convenient against a Lambourne 180 at 4A...
a frightening experience to hear that sudden "leaving three" report). EGLC Tower issues the SID altitude restriction on behalf of Thames Radar which is responsible for the release. Some Thames Radar ATCOs have, certainly in the past, chosen to impose the 3A stop because they found the interaction of LYD and DVR SIDs and the STARs to be DANGEROUS.