Head to head

Tsiklon-2 vs Vostok 8A92M

Two vehicles in the same payload class. Every figure below comes from the same two sources for both rockets, and a row appears only when both publish the input.

Payload to low Earth orbit

Relative

Tsiklon-2: 2,820 kg

Vostok 8A92M: 3,800 kg

Side by side

8 comparable figures

The highlighted value wins the row. Rows where neither direction is better, like length or stage count, highlight nothing.

Metric	Tsiklon-2	Vostok 8A92M
Flights flown	105	93
Success rate	98.1%	98.9%
Payload to LEO (kg)	2,820	3,800
Liftoff thrust (kN)	2,366	3,996
Length (m)	39.7	30.84
Diameter (m)	3	2.99
Launch mass (t)	182	282
Stages	3	2

Tsiklon-2

Flight record

98.1% success rate103 of 105 flown · 2 failed

1969peak 1976 · 8 flights2006

Maiden flight 1969-08-06. Retired.

Vostok 8A92M

Flight record

98.9% success rate92 of 93 flown · 1 failed

1964peak 1979 · 8 flights1991

Maiden flight 1964-08-28. Retired.

Tsiklon-2 is built by Yuzhnoye Design Bureau of Ukraine.Vostok 8A92M is built by RKK Energiya of Russia.

Full specifications and the complete launch history for each: Tsiklon-2 · Vostok 8A92M.

Specifications from Launch Library 2 by The Space Devs, launch records from Space Index. Derived figures are computed here; see sources and method.