Space · launch vehicle
Thor Delta N
MDC
RETIRED
At a glance
Launches
6
Success rate
83.3%
5 ok · 1 failed
Payload to LEO
—
Payload to GTO
—
Manufacturer
McDonnell DouglasStatus
RetiredFirst flight
16 Aug 1968Reusable
NoHeight
33 mDiameter
2.44 mLaunch mass
90 tLiftoff thrust
1,590 kNStages
2Launch cost
$18,800,000Booster landings
—Links
WikipediaAbout
American orbital launch vehicle family with Thor first stage and a delta second stage.
Source The Space Devs — Launch Library 2
Last checked 29 Sept 2026