- Source: List of Delta DM-19 launches
About the Delta DM-19
The Thor-Delta, also known as Delta DM-19 or just Delta was an early American expendable launch system used for 12 orbital launches in the early 1960s. A derivative of the Thor-Able, it was a member of the Thor family of rockets, and the first member of the Delta family.
The first stage was a Thor missile in the DM-19 configuration. The second stage was the Delta, which had been derived from the earlier Able stage. An Altair solid rocket motor was used as a third stage.
The basic design of the original Vanguard upper stages, featuring a pressure-fed nitric acid/UDMH, regeneratively cooled engine, was kept in place, but with an improved AJ10-118 engine. More significantly, the Delta stage featured cold gas attitude control jets allowing it to be stabilized in orbit for restart and more precise burns.
The Thor-Delta was the first rocket to use the combination of a Thor missile and a Delta upper stage. This configuration was reused for many later rockets, and a derivative, the Delta II, remained in service until 2018.
The Thor-Delta launched a number of significant payloads, including the first communications satellite, Echo 1A; the first British satellite, Ariel 1; and the first active direct-relay communications satellite, Telstar 1. All 12 launches occurred from Cape Canaveral Air Force Station Launch Complex 17. The launch of Telstar 1 used pad B, while all other launches were from pad A. All launches were successful except the maiden flight, which failed to place Echo 1 into orbit due to a problem with the second stage.
Launch statistics
= Launch outcome
== Launchpad
== Orbit
== Function
=Launch history
See also
List of Delta 4 launches
List of Thor and Delta launches
List of Thor and Delta launches (1960–1969)
List of Delta IV Heavy launches
List of Delta IV Medium launches
Thor-Delta
References
Kata Kunci Pencarian:
- List of Delta DM-19 launches
- List of Thor and Delta launches
- List of Thor DM-18 launches
- List of Thor DM-21 Agena-B launches
- List of Thor DM-18A launches
- List of spaceflight launches in January–June 2024
- List of Thor and Delta launches (1957–1959)
- List of Thor and Delta launches (1960–1969)
- List of Thor and Delta launches (2000–2009)
- List of Thor DM-18 Agena-A launches
