Editing Hull classification symbol (section)

==== Submarine type ====
Submarines are all self-propelled submersible types (usually started with SS) regardless of whether employed as combatant, auxiliary, or research and development vehicles which have at least a residual combat capability. While some classes, including all diesel-electric submarines, are retired from USN service, non-U.S. navies continue to employ SS, SSA, SSAN, SSB, SSC, SSG, SSM, and SST types.<ref>Russia still employs several SSA and SSAN class submarines like the Delta Stretch as well as one SST, China has older SSB and SSG types such as the Golf and Mod Romeo classes, and North Korea has built many SSCs and SSMs. See 2007–2008 ''Jane{{'}}s Fighting Ships''.</ref> With the advent of new [[Air Independent Propulsion]]/Power (AIP) systems, both SSI and SSP are used to distinguish the types within the USN, but SSP has been declared the preferred term. SSK, retired by the USN, continues to be used colloquially and interchangeably with SS for diesel-electric attack/patrol submarines within the USN, and, more formally, by the Royal Navy and British firms such as [[Jane's Information Group]].
* SC: Cruiser Submarine (retired)
* SF: Fleet [[Submarine]] (retired)
* SM: Submarine Minelayer (retired)
* SS: Submarine, [[Attack Submarine]]<ref>[http://www.nvr.navy.mil/CLASS.HTM U.S. Navy Ship And Service Craft Classifications<!-- Bot generated title -->] {{webarchive|url=https://web.archive.org/web/20041016023831/http://www.nvr.navy.mil/class.htm |date=16 October 2004 }}</ref>
* SSA: Submarine Auxiliary, Auxiliary/Cargo Submarine
* SSAN: Submarine Auxiliary Nuclear, Auxiliary/Cargo Submarine, Nuclear-powered
* SSB: Submarine Ballistic, [[Ballistic missile submarine|Ballistic Missile Submarine]]
* SSBN: Submarine Ballistic Nuclear, [[Ballistic missile submarine|Ballistic Missile Submarine]], Nuclear-powered
* SSC: Coastal Submarine, over 150 tons
* SSG: [[Cruise missile submarine#U.S. Navy|Guided Missile Submarine]]
* SSGN: Guided Missile Submarine, Nuclear-powered<ref name=Halibut group=A>See {{USS|Halibut|SSGN-587}}.</ref>
* SSI: Attack Submarine (Diesel Air-Independent Propulsion)<ref>{{cite journal | last = Buff | first = Joe | author-link = Joe Buff
 |date=June 2007 | title = Subs in the Littoral: Diesels Just Blowing Smoke? | journal = Proceedings of the Naval Institute
 | volume = 133 | issue = 6 | pages = 40–43 | issn = 0041-798X | url = http://www.usni.org/ | access-date = 2007-06-13
 | quote = Diesel AIP boats are known as SSIs, differentiating them from purely diesel-electric-powered hunter-killer subs, or SSKs. }}</ref>
* [[SSK (hull classification symbol)|SSK]]: [[Hunter-killer submarine|Hunter-Killer]]/ASW Submarine (retired)<ref>[http://www.nvr.navy.mil/oldclass.htm Inactive Classification Symbols<!-- Bot generated title -->] {{webarchive|url=https://web.archive.org/web/20120118095120/http://www.nvr.navy.mil/oldclass.htm |date=18 January 2012 }}</ref>
* [[SSKN]]: Hunter-Killer/ASW Submarine, Nuclear-powered (retired)
* SSM: Midget Submarine, under 150 tons
* [[SSN (hull classification symbol)|SSN]]: [[Attack submarine|Attack Submarine]], Nuclear-powered
* SSNR: Special Attack Submarine <ref group="note">This odd entry is not recognized by the U.S. Naval Vessel Register, and appears only in MIL-STD-2525A: ''Common Warfighting Symbology'' (15 December 1996) and later editions (MIL-STD-2525B: ''Common Warfighting Symbology'' (30 January 1999) and MIL-STD-2525C: ''Common Warfighting Symbology'' (17 November 2008)). It seems to refer to some kind of nuclear-powered submarine used by Special Operations Forces.</ref>
* SSO: Submarine Oiler (retired)<ref name=Guavina group=A>See {{USS|Guavina|SSO-362}}.</ref>
* SSP: Attack Submarine (Diesel Air-Independent Power) (alternate use), formerly Submarine Transport
* SSQ: Auxiliary Submarine, Communications (retired)
* SSQN: Auxiliary Submarine, Communications, Nuclear-powered (retired)<ref>[http://www.dia.mil/publicaffairs/Foia/abbrev_acron.pdf 28034_cov.fh<!-- Bot generated title -->] {{webarchive|url=https://web.archive.org/web/20070927024419/http://www.dia.mil/publicaffairs/Foia/abbrev_acron.pdf |date=27 September 2007 }}</ref>
* SSR: [[Radar picket#Converted and purpose-built submarines|Radar Picket Submarine]] (retired)
* SSRN: Radar Picket Submarine, Nuclear-powered (retired)<ref name=Triton group=A>See {{USS|Triton|SSRN-586}}.</ref>
* SST: Training Submarine
{|
|style="width: 50%;"|
* AGSS: Auxiliary Submarine
* AOSS: Submarine Oiler (retired)
* ASSP: Transport Submarine (retired)
* APSS: Transport Submarine (retired)
* LPSS: Amphibious Transport Submarine (retired)
* SSLP: Transport Submarine (retired)
|SSP, ASSP, APSS, and LPSS were all the same type, redesignated over the years.
|}
* X: [[Midget submarine]]<ref name=X-1 group=A>See [[X-1 submarine]].</ref>
* IXSS: Unclassified Miscellaneous Submarine
* MTS: Moored Training Ship ([[Naval Nuclear Power School]] Training Platform; reconditioned SSBNs and SSNs)