My two cents, or more precisely, five copeck ))
Project "103", the further development of "97."
Modification of TU-16 with four engines, VD-7 or four AM-13
Engines pairs were placed in increased Gondola at the root of the wing.
Swept wing - 45 degrees. Fuselage of a Tu-16.
The expected rate was slightly higher than the speed of sound.
from "Aviation & Cosmonautic" #9,04
By Tu-138 (please see postings by Overskan --