Head to head

Delta 2914 vs Pegasus XL

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

Pegasus XL: 443 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	Pegasus XL
Flights flown	30	32
Success rate	93.3%	90.6%
Payload to LEO (kg)	724	443
Liftoff thrust (kN)	2,287	580
Length (m)	35	17.6
Diameter (m)	2.44	1.27
Launch mass (t)	130	23
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.

Pegasus XL

Flight record

90.6% success rate29 of 32 flown · 3 failed

1994peak 1996 · 4 flights2026

Maiden flight 1994-06-27. Still flying.

Delta 2914 is built by McDonnell Douglas of the United States.Pegasus XL is built by Orbital Sciences Corporation of the United States (company profile on Space Index).

Full specifications and the complete launch history for each: Delta 2914 · Pegasus XL.

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