Take a look at this...
75kts at FL240 over Afghanistan today - they'll be able to make a massive 5kts of headway into wind! Also, if you've seen the hangars in Cardington then you'll have some pretty big real-estate to build in Bastion or KAF (a great IDF target!). Finally, the top speed of 80kts is not sustainable for the 3week flights.
I THINK THIS IS A TRULY DUMB IDEA
I understand that the British Army are also asking for the same thing!
LJ