Re: CH 53 "Upgrade"
Why so long (5+ years) till first flight? And then only four years to IOC, so all the support work will be compressed into a mad scramble.
It doesn't appear to include anything Sikorsky doesn't already know how to do, and is supposedly an "upgrade", so one would think first flight should be possible in three years or so.
With such a long time to first flight, it will be vulnerable to budget axes for some time.