That's a little better with the -Es and much better with the -Rs. The main benefit of the -Es (which are just -As re-engined with JT3Ds (military designation is a TF33 varient) taken off of old 707 airliners, is decreased fuel burn, which translates into increased range and/or increased fuel offload. The -Rs are more extensively modified, but part of that was re-engining with CFM56 (military designation F108) which gives the same benefits as for the -Es, but much more so. They can also take off at higher weights and/or use less runway.
When I flew I always kept my phones plugged into the crew net. When we were landing the Q model at Puerto Rico, I was in the boom pod and about 3-5 seconds before touchdown, the nav calls out, "Abort! Abort!" Every sphincter on my body tightened, and one of the only coherent thoughts that went through my head was, "Where are we going to get the power from?" Fortunately, the first thing I heard after a near perfect touchdown was the AC asking the nav some pointed questions, strating with, "Um, why in the world did you just do that?" Seems the nav had misjudged our angle. We left PR six hours later, and I think his face was still red, poor guy.
I really miss the Air Force some days. There's just nothing like being part of military aviation. Even the near heart attacks are worth it. :-)