Little known factoid, the Bears were so noisy with those eight contra-rotating props that they could be accurately tracked by SOSUS by both audio level and distinctive harmonics.
Oh heck yes! Even through the noise of your own engine, or engines, and whatever insulation provided by your canopy, helmet and earphones, the Bear’s engines and props were deafening.
Anti-Submarine Warfare (ASW) versions
TU-142M2 (NATO code name Bear F mod 2)
TU-142M3 (Bear F mod 3)
TU-142M4 (Bear F mod 4)
Submarine communications and Command, Control, and Communications (C3) duties
TU-142MR (Bear J)
The TU-142 is based on the TU-95. The TU-95 is also the basis for the largest and fastest turboprop ever produced - the TU-114. The TU-114 was, in turn, the basis for the TU-126, an Airborne Early Warning and Control aircraft.