NS
Quite a few T19 sorties. B2 with pointed concreted nose and no tip tanks.
No navaids either other than TACAN.
We tended to use the T19 for PI's and any sortie that required climb above 410. Pressurisation limitations limited ceiling to 470 but with a light aircraft we once took one to 520. We still had a reasonable rate of climb but MCrit and safety speed considerations made us chicken out.
Never heard of a T11