Why did the Soviet Navy not build a larger non-nuclear Kirov-style backup?
Short answerA ship of comparable size would have consumed scarce yard capacity and become a competitor, whereas Slava was a more practical fallback and presence platform.
NotesA 20,000-ton-plus alternative would have needed the same scarce construction capacity as the Kirov it was meant to back up. Soviet surface-warship programmes competed for yard space even when submarine construction had stronger protection. A smaller Slava could serve as insurance without becoming a direct rival for resources and priorities. The Type 42 is accepted as a closer reduced-cost counterpart to the much larger Type 82 than a full-size non-nuclear Kirov analogue. Even an attractive paper design could proceed only if a suitable yard was available.