Head to head

Delta 2914 vs Rokot/Briz-KM

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

Delta 2914: 724 kg

Rokot/Briz-KM: 1,850 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	Delta 2914	Rokot/Briz-KM
Flights flown	30	31
Success rate	93.3%	90.3%
Payload to LEO (kg)	724	1,850
Liftoff thrust (kN)	2,287	1,870
Length (m)	35	29
Diameter (m)	2.44	2.5
Launch mass (t)	130	107
Stages	4	3

Delta 2914

Flight record

93.3% success rate28 of 30 flown · 2 failed

1974peak 1977 · 8 flights1979

Maiden flight 1974-04-13. Retired.

Rokot/Briz-KM

Flight record

90.3% success rate28 of 31 flown · 3 failed

2000peak 2013 · 4 flights2019

Maiden flight 2000-05-16. Still flying.

Delta 2914 is built by McDonnell Douglas of the United States.Rokot/Briz-KM is built by Russian Aerospace Defence Forces of Russia (company profile on Space Index).

Full specifications and the complete launch history for each: Delta 2914 · Rokot/Briz-KM.

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