firstly the 442s and HST's are completely different animals,,
442's They are being compared too much to the electrostars.
which have superior acceleration and take off compared to their older parents such as 442 .
The 442 isn't bad on take off acceleration, they don't get their legs until around 40mph,a little slower than an a class 411 or 421 . 442 cant cope with stop/start inner suburban or coastway work...411s and 309s hated stop start jobs, old school will confirm this..
Personally If southern were to keep them on the Gatwick express paths with brighton extensions they will earn their keep, Gatwick express when it was operated as loco hauled with the 73 and GLV often didn't run full and standing.
Gatwick express used to be the best service out of Victoria, its now become a joke..southern need to utilise the 442 to their best possible use, they have their electrostars to run the main jobs, 442 should be on their fast jobs.
retractioning is overdue, the 432 rep traction package is tired, motors etc can only be overhauled so many times before they become life expired, to provide spares units will have to be Christmas tree'd to keep others in traffic - that's a waste of decent units, when seating is a major priority
Angel Trains need to examine the remotoring to AC and regeneration system on the fleet, they are proven systems out there - the Hitachi package is a proven design and would be the one with the best service contract with hitachi now big in the UK..
Just a thought but the 442s are still a good unit and are too good to scrap, they were built for the southern and should stay where they belong..
comparing the 442 to deltic - well deltics were a maintenance hungry loco and not too cost effective, hence they got 20 years life..they were lucky to last 20 years I think..