📊 Analysis
Statistics & insights on rockets and organizations — technology, history, numbers.
Delta II 7925-9.5
RetiredUnited Launch Alliance
Delta II is an American space launch system developed by McDonnell Douglas, now part of the Delta rocket family operated by United Launch Alliance. With more than 150 missions and a nearly perfect track record, Delta II has established itself as one of the most successful orbital launch systems.
Key figures
Total launches
26
Successes
26
Failures
0
Success rate
100.0 %
Success streak
26
Maiden flight
Jan 10, 1998
Launch cost
$51 Mio.
Reusable
No
Shortest launch interval ⓘ
41d 2h
Planned launches
0
Delta, Delta II family total
155 launches · 153 successes · 2 failures (25 variants)
🧐 Data check
Automatic plausibility checks — anomalies are surfaced transparently here:
- ℹ️The figures above apply only to the “Delta II 7925-9.5” variant. The Launch Library counts each variant separately — the Delta, Delta II family totals 155 launches across 25 variants.
Technology
Length
38.9 m
Diameter
2.4 m
Launch mass
232 t
Stages
3
GTO (geo transfer)
1,840 kg
Launches per year
of which in our database: 26
Successes Failures Other/planned
History & events
Sources
- Launch Library 2 (The Space Devs)
- Wikipedia
- https://www.spacelaunchreport.com/delta2.html#config