According to the Northern Scot flight trials of the MRA4 have swallowing up about 50% of the entire spend!
Quote:
The majority of the overspend has come about during the flight trials process, which has highlighted the need for modifications. There are problems with the pitch of the aircraft – something which the MoD says is not unusual – and that has accounted for about half the cost growth.
Source:
http://www.northern-scot.co.uk/news/...mrod'.html
Is the "porpoising" still a problem, detected at first flight?