AN/SPG-55

Infobox Radar
name = AN/SPG-55

---

caption = The USS|Mahan|DDG-42 underway in 1983 to test and evaluate the Terrier New Threat Upgrade (NTU) Combat System. Two AN/SPG-55B directors are above the Mark 10 Terrier/Standard missile launcher and the sailors.
country = United States
introdate =
number =
type = Missile fire-control
frequency =
range =
altitude =
diameter =
azimuth =
elevation =
precision = Fire control quality three dimensional data
power = The AN/SPG-55 was a tracking / illumination radar for Terrier and RIM-67 Standard missiles (SM-1ER/SM-2ER). It was used for target tracking and Surface-to-air missile guidance on numerous ships including USS|Kitty Hawk|CV-63,Sclass|Belknap|cruiser|1s, Sclass|Leahy|cruiser|1s and Farragut class destroyers. It was also used on the nuclear powered single units USS|Long Beach|CGN-9, USS|Bainbridge|CGN-25 and USS|Truxtun|CGN-35. The SPG-55 was part of the Mk 76 missile fire control system. [cite web|url=http://www.geocities.com/pcoyote_86001/mk76.htm|title="MK 76 Missile Fire Control System"]

Name

The designation "AN" stands for "Army-Navy" while "SPG" is not an acronym, but part of the MIL-STD-196E Type Designation System:cite book
title = Department of Defense Standard Practice Joint Electronics Type Designation System
edition =
last = Department of Defense
first =
coauthors =
year = 1998
publisher =
id = MIL-STD-196E
pages = ]
* First letter (installation) - S = Water (surface ship)
* Second letter (type of equipment) - P = Radar
* Third letter (purpose) - G = Fire Control or Searchlight Directing

Variants

*AN/SPG 55 - Original version supported Beam riding Terrier missiles.
*AN/SPG 55A - Supported Beam-riding and homing Terrier missiles
*AN/SPG 55B - Supported Beam-riding and homing Terrier missiles as well as newer Standard missiles.

ee also

*List of radars
*RIM-2 Terrier Missile

External links

* [http://www.navweaps.com/index_tech/tech-088.htm Radars and Computers aboard USS Sterett and other Warships during the Vietnam War]

References