Head to head

Titan IIIC vs Vulcan VC6L

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

Titan IIIC: 13,100 kg

Vulcan VC6L: 27,200 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	Titan IIIC	Vulcan VC6L
Flights flown	36	0
Payload to LEO (kg)	13,100	27,200
Payload to GTO (kg)	3,000	15,300
Liftoff thrust (kN)	10,586	18,110
Length (m)	42	67.4
Diameter (m)	3	5.4
Launch mass (t)	626	877
Stages	3	2

Titan IIIC

Flight record

94.4% success rate34 of 36 flown · 2 failed

1965peak 1965 · 3 flights1982

Maiden flight 1965-06-18. Retired.

Vulcan VC6L

Flight record

Maiden flight not recorded. Still flying.

Titan IIIC is built by Lockheed Martin of the United States.Vulcan VC6L is built by United Launch Alliance of the United States (company profile on Space Index).

Full specifications and the complete launch history for each: Titan IIIC · Vulcan VC6L.

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