For some time, between 1961 and 1964, Chelomei's less aggressive proposal was accepted, and development of his UR-500 and the LK-1 were given a high priority.
Untuk sementara, antara tahun 1961 dan 1964, proposal Chelomei yang tidak terlalu ambisius, dan pengembangan UR-500 dan LK-1 miliknya mendapat prioritas utama.