Addendum 2:
Unit 345: max. speed 314 km/h = Speed 3. Max. bomb load was 4000 lbs in four hardpoints (all up to 1000 lb), so the current load of 6 x 500 lb was not possible.
(I wonder whose idea originally was to add a flying boat as a level bomber doing tactical support for ground units...)
To facilitate its inclusion, Wellington specs for the game. The different marks were similar enough that single specs suffice:
Available from 10/1938 to 12/1944, Crew 6, Size 5, Speed 4, Max. bomb load 4,500 lbs (could carry GP bombs up to 2000 lb*), Armor probably 10 thanks to the geodesic construction.
* In fact the Wellington could also carry the 4000 lb "Cookie", but that bomb had no tail and was used only for area bombing.
Sources: Wikipedia and
http://uboat.net/allies/aircraft/types.htm