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Thor Delta M

Thor Delta M

Thor family · built by McDonnell Douglas · maiden flight 1968-09-19

Profile data last updated: 2026-08-29T15:37:07.354998+00:00 | 7531-10-17

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

Specifications

34.0 mLength
2.44 mDiameter
103 tLaunch mass
3Stages
2140 kNLiftoff thrust

Payload Capacity

355 kgTo LEO
355 kgTo GTO

Lifetime Launch Record

As reported by Launch Library 2 across this rocket's entire history, not just the launches tracked on this site.

12Total launches
10Successful
2Failed
0Upcoming

Launches Tracked on This Site

12In our archive
83.3%Success rate
Sep 19, 1968 00:09 UTCEarliest tracked
Feb 03, 1971 01:41 UTCMost recent
MissionDateStatus
Thor Delta M | NATO IIB Feb 03, 1971 01:41 UTC Success
Thor Delta M | Skynet IB Aug 19, 1970 12:11 UTC Success
Thor Delta M | INTELSAT III F-8 Jul 23, 1970 23:23 UTC Success
Thor Delta M | INTELSAT III F-7 Apr 23, 1970 00:46 UTC Success
Thor Delta M | NATO IIA Mar 20, 1970 23:52 UTC Success
Thor Delta M | INTELSAT III F-6 Jan 15, 1970 00:16 UTC Success
Thor Delta M | Skynet IA Nov 22, 1969 00:37 UTC Success
Thor Delta M | INTELSAT III F-5 Jul 26, 1969 02:06 UTC Failure
Thor Delta M | INTELSAT III F-4 May 22, 1969 02:00 UTC Success
Thor Delta M | INTELSAT III F-3 Feb 06, 1969 00:39 UTC Success
Thor Delta M | INTELSAT III F-2 Dec 19, 1968 00:32 UTC Success
Thor Delta M | INTELSAT III F-1 Sep 19, 1968 00:09 UTC Failure

Wikipedia