I undersatand from an Authority close to a Cmdr (E) up at the Clyde ,that the Modules once built at Portsmouth,then transported up to Scotland,sometimes dont marry up to their counterparts.Even watertight doors are not able to actuate in their slots,and then small items like a Plinth onto which a Phalanx mounting is bolted,has its bolt holes not lining up with its flange plate,so someone could not even drill out from a template accurately.I suppose when the Aircraft wont arrive until 2020,someone can redo the job properly!!!!Can hope I suppose,but the sooner eveything is removed fom the Wicked Witch of the North's domain and returned South,then maybe we can have a Navy that will work!!!??