Head to head

Soyuz 2.1b vs Tsiklon-2

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

Soyuz 2.1b: 8,200 kg

Tsiklon-2: 2,820 kg

Side by side

9 comparable figures

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

Metric	Soyuz 2.1b	Tsiklon-2
Flights flown	25	105
Success rate	100%	98.1%
Payload to LEO (kg)	8,200	2,820
Launch cost	$80M	$12M
Cost per kg to LEO	$9,756	$4,255
Length (m)	46.3	39.7
Diameter (m)	2.95	3
Launch mass (t)	312	182
Stages	3	3

Soyuz 2.1b

Flight record

100% success rate25 of 25 flown

2008peak 2021 · 4 flights2026

Maiden flight 2008-07-26. Still flying.

Tsiklon-2

Flight record

98.1% success rate103 of 105 flown · 2 failed

1969peak 1976 · 8 flights2006

Maiden flight 1969-08-06. Retired.

Soyuz 2.1b is built by Progress Rocket Space Center of Russia (company profile on Space Index).Tsiklon-2 is built by Yuzhnoye Design Bureau of Ukraine.

Full specifications and the complete launch history for each: Soyuz 2.1b · Tsiklon-2.

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