These plans were dropped when Glushko offered Chelomei the RD-270, which allowed the construction of a much simpler "monoblock" design, also known as the UR-500.
Rencana ini dibatalkan ketika Glushko menawarkan Chelomei RD-270, sehingga bisa menggunakan desain tunggal yang lebih sederhanadan juga dinamai UR-500.