According to Mark L. Morgan and Mark Berhow:
- The
DM-15 Nike Zeus A (Douglas Missile-15), was a scaled-up, two-stage version of the
Hercules.
- The
DM-15S Nike-Zeus B was released in the spring of 1960 and was designated XLIM-49A.
According to Andreas Parsch:
the
DM-16 was a solid-fueled rocket used to power the
Rockaire vehicle.
According to Wikipedia:
- Thor
DM-18 (single stage LV) (also see: http://www.astronautix.com/lvs/thordm18.htm)
- Thor
DM-19 (rocket 1st stage) (also see: http://www.astronautix.com/stages/thordm19.htm)
- Thor
DM-21 (rocket 1st stage)
According to Capcom Espace.net:
-
Thor DM-18 Able-1 to -4 (see page for detailed flight timeline)
-
Thor DM-21 Able Star (see page for detailed flight timeline)
According to GlobalSecurity.org and FAS.org:
-
DM-18A = first stage of the two-stage Thor-Burner I and Thor-Burner II launch vehicles (also see
this)
-
DM-1812-3/
DM-18/3 Thor = essentially a Model DM-18A modified by the removal of the nose cone and guidance, which was incorporated in the second stage
-
DM-21 = basically a Model DM-18C with a higher thrust engine, nose fairing removed, and guidance section replaced by a shorter, lighter transition section
-
DM-21A = DM-21 with a new adapter section, forward of a transition section to accommodate the second stage; used as first stage for Thor-Agena B and Thor-Agena D
-
According to Collect Air:
The Thor
Able Star, initially known as
Thor Epsilon, combined an improved basic Thor vehicle, designated as DM-21, with a new second stage based on the Able and built by Space General, giving it a total length of 77.99 ft. The vehicle was also identified as DSV-2A and DSV-6.
Great Thor photographs for sale here.
A great page on Thor is to be found, as usual, on Andreas Parsch's website:
http://www.designation-systems.net/dusrm/app3/b-3.html