Geoffers - I am well aware of all the problems of the early Sea King - that is why I made the point that a helicopter built in the last 10 years should NOT have to go through the same process to make it airworthy and fit for purpose.
Who was it who said 'those that do not learn the lessons of history are doomed to repeat them'?
Found it - "Those who cannot remember the past are condemned to repeat it." George Santayana 1863-1952
BTW your maths don't add up - 1970 + 40 years = 2010