>> ... deafening roar and pitch-black smoke from the water injected J-57s ...
Yup. The use of a water injection system added thrust equivalent to a 5th engine. I seem to remember that it ran out after 120 seconds; just after flap retraction.
The lack of a proper water service took the lives of three of my friends at Santa Cruz, Bolivia in 1976. (Google up “B707 Santa Cruz Bolivia). The plane was deadheading empty back to Miami. They had an engine failure on takeoff; if they had had a full water service (5,000# of it), they would have been fine. So much for “get home-itis”.
The thing I remember about a KC-135A takeoff was 1) the very distinct and loud whine of the J57's when the plane was flying towards you, 2) the load roar as the plane passed overhead and flying away from you, and 3) the long smoke trail when water injection was turned on. Small wonder why when the USAF had to chance to modify a bunch of KC-135A's with JT3D turbofan engines salvaged from scrapped Boeing 707 airliners they did it really quickly.