Skip to content

EVERYLAUNCH
PLAY
TDN

Rocket file · LV-411

Thor Delta N

McDonnell Douglas · Thor · RETIRED

Thor Delta N is an expendable launch vehicle built by McDonnell Douglas. It stands 33.0 m tall, first flew on 16 August 1968. It has flown 6 times with 5 successes, a success rate of 83.3%. It has nothing on the Launch Library 2 schedule right now.

Specification

Vehicle spec sheet

ON FILE
Height33.0 m
Diameter2.4 m
Payload to LEONOT ON FILE
Payload to GTONOT ON FILE
Maiden flight16 August 1968
ReusableNo, expendable
Launch cost$18.8M
StatusRETIRED

As listed by Launch Library 2. The cost is Launch Library’s figure, not a quoted price. Figures for rockets outside the sixty most-flown were last read on 2026-11-05.

Flight record

Reliability

ON RECORD
Total flights6
Successful5
Failed1
Success rate83.3%
Landing attempts0
Landing successN/A
Scheduled0
VariantDelta N

About Thor Delta N

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

Upcoming flights

Manifest

EMPTY

Thor Delta N is retired, and no flight is filed.

All upcoming launches

Thor Delta N in the archive

From NASA's public image library and Wikimedia Commons. Each photo shows the credit its licence asks for and links back to where it came from.

Delta N6 rocket with ITOS satellite
Delta N6 rocket with ITOS satelliteNASA Headquarters - GReatest Images of NASA (NASA-HQ-GRIN) · public domainWikimedia Commons ↗
P1280289 Paris IX rue du Delta n26 rwk
P1280289 Paris IX rue du Delta n26 rwkMbzt · CC BY-SA 4.0Wikimedia Commons ↗
Delta-N (Delta 85) with OSO-7 and TTS-3
Delta-N (Delta 85) with OSO-7 and TTS-3NASA · public domainWikimedia Commons ↗

Orbitburn is a gravity lander game with 25 ships. It's free on Android, and you can play it in your browser.Get it free on Google Play

Common questions

How many times has Thor Delta N flown?
6 times, with 5 successes and 1 failures.
What is Thor Delta N's success rate?
83.3%. That's 5 successful flights out of 6 attempts.
How much can Thor Delta N lift to orbit?
Launch Library 2 doesn't list a payload figure for Thor Delta N.
Is Thor Delta N reusable?
No. Launch Library 2 lists Thor Delta N as expendable, so no stage is recovered to fly again.