Yeah, in the summer the early one (there are 3) is 3 crew. You still get about the same time there which is about 55 hours. It is obviously a fairly junior trip.
In winter all 3 are 4 crew.
You don't necessarily get any time off after as it depends what you bid for as Bidline is totally flexible so long as its legal. Although if you're on a Blind line (when BA are responsible for rostering you), then I believe you would get 3 local nights.
Sector length is about 11 out and 12ish back.