Head to head

Vostok 8A92 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

Vostok 8A92: 4,730 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	Vostok 8A92	Vostok 8A92M
Flights flown	44	93
Success rate	90.9%	98.9%
Payload to LEO (kg)	4,730	3,800
Liftoff thrust (kN)	3,996	3,996
Length (m)	30.84	30.84
Diameter (m)	2.99	2.99
Launch mass (t)	281	282
Stages	2	2

Vostok 8A92

Flight record

90.9% success rate40 of 44 flown · 4 failed

1962peak 1966 · 10 flights1967

Maiden flight 1962-06-01. Retired.

Vostok 8A92M

Flight record

98.9% success rate92 of 93 flown · 1 failed

1964peak 1979 · 8 flights1991

Maiden flight 1964-08-28. Retired.

Vostok 8A92 is built by RKK Energiya of Russia.Vostok 8A92M is built by RKK Energiya of Russia.

Full specifications and the complete launch history for each: Vostok 8A92 · 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.