Originally Posted by
BEagle
KC-767I is powered by the GE CF6-80C2, but I understand that even after the RW at Pratica di Mare was extended, the Italian Air Force cannot operate it with max fuel for most of the year.
The PW4000 as installed on the KC-46 has over 5% more takeoff thrust than the CF6-80C2BF as installed on the KC-767.
Deleting the thrust reverser doesn't affect TO performance calculations since the FARs don't allow you to take credit for thrust reversers (real life of course is different).
EMP/HIRF hardening requirements on the KC-46 were so high that at many frequencies there were no test facilities capable of creating the required fields - much of the validation had to be by analysis because it couldn't be tested. There is so much shielding on the engine wiring that deleting the T/R was a blessing in disguise - otherwise there wouldn't have been sufficient room for the wire bundles.