π Analysis
Statistics & insights on rockets and organizations β technology, history, numbers.
Delta 3920
RetiredMcDonnell Douglas
The Delta 3000 series was an American expendable launch system which was used to conduct 38 orbital launches between 1975 and 1989. It was a member of the Delta family of rockets. Several variants existed, which were differentiated by a four digit numerical code.

Key figures
Total launches
3
Successes
3
Failures
0
Success rate
100.0 %
Success streak
3
Maiden flight
Jul 16, 1982
Reusable
No
Shortest launch interval β
594d
Planned launches
0
Delta, Delta I family total
98 launches Β· 92 successes Β· 6 failures (23 variants)
π§ Data check
Automatic plausibility checks β anomalies are surfaced transparently here:
- βΉοΈThe figures above apply only to the βDelta 3920β variant. The Launch Library counts each variant separately β the Delta, Delta I family totals 98 launches across 23 variants.
Technology
Length
36 m
Diameter
2.44 m
Launch mass
191 t
Liftoff thrust
3,188 kN
Stages
3
Launches per year
of which in our database: 3
Successes Failures Other/planned
History & events
Sources
- Launch Library 2 (The Space Devs)
- Wikipedia