50. Fixing Them Up
The maintenance cost for the Raptors in equally high. In the initial testing the F-22 required 30 hours for every 1 hour of flight, this period has since them been reduced to 18 hours in 2008 and 10 hours in 2009.
On average the mean time between consecutive repairs was 1.7 in against the required time of 3.0 hours. But with the current improvement the numbers have rose to 3.2 hours.
