reveal that in the first nine months of 2007 the RAF base at Leconfield in East Yorkshire did not have a serviceable helicopter available for 300 hours.
9 months = 6600 hours (approx).
300 hours = 4.5%
Availability = 95.5%
Not perfect, but not wrist slashingly awful either, is it?
But they are flying aircraft designed to last 10,000 hours in the air
SK's were not 'designed' to an hours based life. I hear that AW reckon the airframes are good for 20K+.