Retired· McDonnell Douglas

Thor Delta L

American orbital launch vehicle family with Thor first stage and a delta second stage.

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Launches

since Aug 1969

Success rate

50%

1 of 2 successful

In a row

successful launches

Launches per Year

Full year2026 so far

Specifications

Height: 35 m
Diameter: 2.44 m
Liftoff mass: 89 t
Liftoff thrust: 1,452 kN
To low Earth orbit: 300 kg
To geostationary transfer: 300 kg
Stages: 4
Listed launch price: $16.5 million
First flight: August 27, 1969
Manufacturer: McDonnell Douglas

Next Launches

No Upcoming Launches

No launch is scheduled for this vehicle right now.

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