If I was a designer...
So as not to repeat the merry go round of having a the only fleet of 10 of a certain type of airframe in the world with all the ****s and giggles of the logistics train which that entails there should be a requirement that the airframe must be based upon an existing craft of which there are at least 200 currently flying in the world.
Couple this with a criterion requiring the base aircraft to been manufactured as a new build since 2000.
That may help a tad.
Last edited by Finnpog; 1st Feb 2011 at 21:25.
Reason: Sorry. All thingers and fumbs