Editing Security Vessel

{{:Starship-Nav-Bar-Two-2019CE}}
[[Security Vessel|H-class Security Vessel]]s and '''[[Defensive Vessel]]s''' covers a spectrum of defensive and security vessels covering many paramilitary and military taskings.
* They are generally considered secondary naval combatants even when they form the first line of defense against enemy fleets. Their inability to conduct primary naval offensive operations is the strategic reason why they are considered secondary naval combatants.
* The class includes the well known [[System Defense Boat]], [[Monitor]], [[law enforcement craft]], [[police ship]]s, [[customs vessel]]s, and many more.
* The H-class also includes a range of [[Bounty Hunter Vessel]]s and [[Q-ship]]s with specialized police functions and defensive functions versus [[corsair]]s, [[pirate]]s, and/or [[privateer]]s.
* The [[Supraclass]] designation is also known as [[Ship Mission]], [[Ship Mission Code]], Mission, or [[Ship Hull Designation]]. 
* It is a [[starship]] [[supraclass]].
[[File: Technical Data.jpg|right]]

=== Library Data Referral Tree ===
Please refer to the following [[AAB]] [[Library Data]] for more information: <br>
'''[[Starship]]:'''
{{:Referral-Tree-Starship-User-Types}}
{{:Referral-Tree-Advanced-Ship-Classifications}}
{{:Referral-Tree-Basic-Ship-Classifications}}
{{:Referral-Tree-Ships-by-Function}}
{{:Referral-Tree-Speed-of-Travel}}

== Description ([[Specifications]]) ==
''H-class Vessel's'' are not intended for offensive operations, they instead defend and secure fixed locations, almost always [[mainworld]]s and their associated [[star system]]s. These missions are considered paramilitary by the dominant thoughts of naval [[strategist]]s within [[Charted Space]]. Patrol and Surveillance ships largely observe space, keeping track of things that are there and watching for things that aren't supposed to be.   

=== Image Repository ===
'''[[Police Vessel|Type HP Police Vessel]]:'''
# A [[Serpent class Police Cutter]] on an intercept course. <br> [[file: Serpent-MGT-RESIZE-pg-131 14-Oct-2019b.jpg|400px]]

'''[[Patrol Vessel|Type HT Patrol Vessel]]:'''
# A [[Lurushaar Kilaalum class Corvette|Type T or Lurushaar Kilaalum]] in 3D B&W render. <br> [[File: Corvette-T5-Core-Rules-Pg-313 26-July-2018a.jpg|300px]]
# A [[Shivva class Patrol Frigate]] image from [[Deck Plan]]s, one of the most common [[Zhodani]] [[Patrol Vessel]]s. <br> [[File:ShivvaX-Paul-Schirf 12 Feb-2019a.gif|300px]]

'''[[System Defense Boat|Type HSB System Defense Boat]]:'''
# A [[Dragon class System Defense Boat]] in action safeguarding a [[gas giant]] from marauders wanting to perform [[wilderness refueling]]. <br> [[File: SDB-WH-Keith-MT-Imp-Encyclo-Pg-85 03-July-2018a.jpg|300px]]
# A heavily armored [[Arden class System Defense Boat|''Arden'' class SDB]]. <br> [[File:Arden class SDB 2.jpg|400px]]
# A [[Caryatid class System Defense Boat]] coming into a [[spaceyard]] for routine maintenance.. <br> [[File: Carytid-SDB-T5-RESIZE-Botd-Stone 02-Sept-2019b.jpg]]

=== Strategy & Tactics (Doctrine) ===
''H-class Vessel''s have two major taskings: 
# Defensive Warfare 
# System Security 

They are generally considered secondary naval combatants even when they form the first line of defense against enemy fleets. Their inability to conduct primary naval offensive operations is the strategic reason why they are considered secondary naval combatants.

=== Supraclass Roles ===
''Security & Defensive Vessel''s typically serve the following roles:

'''[[Bounty Hunter Vessel]]s:''' <br>
''[[Largecraft]] & [[Bigcraft]]:''
{| class="wikitable sortable" 
!colspan="4"| H-class Bounty Hunter Vessel Supraclass Archetypes
|-
! Archetype
! Type Code
|-
| [[Bodyguard Vessel]]
| (HH)
|-
| [[Bounty Hunter Vessel]]
| (HH) (Namesake) 
|-
| [[Hunter Vessel]]
| (HH) 
|-
| [[Privateer]]
| (PRP)
|-
| [[Privateer Vessel]]
| (PRP)
|-
| [[Q-Ship]]
| (HQT) 
|-
| [[Ranger Vessel]]
| (HPR)
|-
|}
  
'''[[Law Enforcement Vessel]]s:''' <br>
''[[Largecraft]] & [[Bigcraft]]:''
{| class="wikitable sortable" 
!colspan="4"| H-class Law Enforcement Vessel Supraclass Archetypes
|-
! Archetype
! Type Code
|-
| [[Constabulary Cruiser]] 
| (HP)
|-
| [[Customs Vessel]] 
| (HP)
|-
| [[Patrol Escort]] 
| (HT)
|-
| [[Patrol Ship]] 
| (HT)
|-
| [[Patrol Skiff]] 
| (HT)
|-
| [[Patrol Vessel]] 
| (HTP)
|-
| [[Police Cruiser]] 
| (HP)
|-
| [[Police Cutter]] 
| (HP)
|-
| [[Police Ship]] 
| (HP)
|-
| [[Police Vessel]] 
| (HP)
|-
| [[Quarantine Cutter]] 
| (HP)
|-
| [[Quarantine Ship]] 
| (HP)
|-
| [[Security Vessel]] 
| (H) (Namesake)
|-
|}

'''[[Defender Vessel]]s:''' <br>
''[[Largecraft]] & [[Bigcraft]]:''
{| class="wikitable sortable" 
!colspan="4"| H-class Defender Vessel Supraclass Archetypes
|-
! Archetype
! Type Code
|-
| [[Defense Vessel]] 
| (HD)
|-
| [[Defender]] 
| (HD)
|-
| [[Defensive Ship]] 
| (HD)
|-
| [[Defensive Vessel]] 
| (HD)
|-
| [[Gunboat]] 
| (HD)
|-
| [[Heavy System Defense Boat]] 
| (HSDB)
|-
| [[Missile Boat]] 
| (HD)
|-
| [[Monitor]] 
| (HM)
|-
| [[Patrol Fighter]] 
| (FP: [[Smallcraft]])
|-
| [[Picket Boat]] 
| (HD)
|-
| [[Planetoid Monitor]] 
| (HMP)
|-
| [[Sentinel]] 
| (HD)
|-
| [[System Defense Boat]] 
| (HSB: Light)
|-
| [[System Defense Boat]] 
| (HSDB: Heavy)
|-
|}

==== Size-Class Roles for Security Vessels ====
# [[Utility Craft]] (U) (1 to 99 [[ton]]s)
# [[Very Light Security Vessel]] (HV) (100 to 2,499 [[ton]]s)
# [[Light Security Vessel]] (HL) (2,500 to 99,999 [[ton]]s)
# [[Medium Security Vessel]] (HE) (100,000 to 249,999 [[ton]]s)
# [[Heavy Security Vessel]] (HA) (250,000 to 499,999 [[ton]]s)
# [[Superheavy Security Vessel]] (HP) (500,000 to 999,999 [[ton]]s)
# [[Ultraheavy Security Vessel]] (HU) (1,000,000 or more [[ton]]s)

==== Military Subcraft ====
Military [[subcraft]] (...both [[smallcraft]] and [[bigcraft]]) are carried by some of these [[vessel]]s:
# [[Battle Rider]] (BR)
# [[Combat Barge]] (WBG)
# [[Combat Transport Smallcraft]] (UI)
# [[Fighter]]s (F)
# [[Militarized Utility Craft]] (UQ)

=== Supraclass Archetypal Roles ===
These vessels typically serve the following archetypal roles:
{| class="wikitable sortable" 
!colspan="4"| H-class Defense / Security Vessel Supraclass Archetypes
|-
! Archetype
! Type Code
! Exemplar
! Remarks
|-
| [[Security Vessel]]
| H (Namesake)
| [[Fazachu class System Defense Boat]]
| H-class security vessels cover a vast variety of vessels from paramilitary policing types, to bounty hunters,  to dedicated military defensive types and more...
* H = Defender / Security 
|-
| [[Defender]]
| HD
| [[Kaga class System Monitor]]
| While most H-class vessels serve paramilitary functions, HD-Defenders are specifically military vessels with a dedicated defense mission. Most [[SDB]]s are considered paramilitary and are attached to planetary fleets, while most defenders are part of subsector or sector fleets and integrated into a larger strategic mission, often with better access to service facilities and [[jump shuttle]]s for greater strategic mobility.
* H = Defender / Security 
* D = Defender
|-
| [[Bounty Hunter Vessel]]
| HH
| [[Huntress class Bounty Hunter]]
| Hunter vessels are most often used by bounty hunters, hence their name. They can be characterized as high performance yachts specialized for combat duties in pursuit of high value targets.
* H = Defender / Security 
* H = Hunter
|-
| [[Monitor]]
| HM
| [[Empress Troyhune class Planetoid Monitor]]
| Monitors typically represent non-FTL vessels used for system defense duties. They are often older warships repurposed to this duty rather than being mothballed or cut up for scrap. They can be monstrous combat platforms. 
* H = Defender / Security 
* M = Monitor
|-
| [[Police Ship]]
| HP
| [[Stenka class Security Vessel]]
| ''Police Ship''s police a [[star system]]. They are meant to uphold the laws of a controlling [[mainworld]], typically a [[world-state]]. They patrol the [[Inner System|inner]] and [[outer system]]s,  but rarely the [[far system]]. They conduct patrols to discourage piracy, conduct customs inspections, and numerous other related tasks. Most tend to be [[boat]]s, as in [[system craft]] with [[jump drive]]s, but a few are equipped with [[jump drive]]s to chase offenders out of the [[system]]. Many of these craft are seconded to [[subsector navies]] when need arises. These are considered [[paramilitary ship]]s.
* H = Defender / Security 
* P = Police, Gendarmerie, Constabulary, [[Mashkim]], [[etc.]]
|-
| [[Q-Ship]]
| HQT
| [[Fenris class Q-ship]]
| A [[Q-ship|HQT-class Q-Ship]]s are spaceships or starships designed to lure [[Corsair Vessel]]s by giving the appearance of a weak, poorly-armed [[merchant ship]], but having sufficient combat power to defeat them. 
* H = Defender / Security 
* Q = Q-ship
|-
| [[System Defense Boat]]
| HSB
| [[Dragon class System Defense Boat]]
| The first SDBs were of light to medium displacement, often retired hulls that were repurposed to form a plausible line of defense for star systems. They used a type code of SB or HSB.
* H = Defender / Security 
* S = System Defense
|-
| [[System Defense Boat]]
| HSDB
| [[Zhodatl class System Defense Boat]]
| HSDB defenders possess medium to heavy displacement and came after the HSB series as SDBs were increasingly fulfilling the hopes of naval strategists and successfully defending star systems. Many are specialized for gas giant and planetoid belt ambushes.
* H = Defender / Security 
* S = System Defense
|-
| [[Patrol Vessel]]
| HT
| [[Lurushaar Kilaalum class Corvette]]
| ''Patrol Ships'' (sometimes AKA Patrol Boats) are usually smaller vessels, lightly armed or unarmed, but generally with plenty of sensors, designed to maintain order in an area of space among people and ships who are inclined to be orderly in the first place.  They tend to be used for space-traffic, safety and compliance patrols in areas without a lot of armed threats; a Patrol Boat may have enough firepower to deter minor threats, but isn't usually employed in places where even minor threats are likely. 
* H = Defender / Security 
* T = pa'''T'''rol 
|-
| [[Patrol Vessel]]
| HTP
| [[Shivva class Patrol Frigate]]
| Medium to heavy displacement.
* H = Defender / Security 
* T = pa'''T'''rol
|-
| [[Patrol Fighter]]
| FP
| [[Kirchner class Patrol Fighter]] 
| ''[[Patrol Fighter]]s'' are craft designed to operate for long duration over space or atmosphere in patrol roles, in particular combat air patrol (CAP), reconnaissance roles (Recon), anti-ship warfare (AShW), and search and rescue (SAR). A combat air patrol is a patrol provided over an objective area, over the force protected, over the critical area of a combat zone, or over an aero defense area ([[COACC]]), for the purpose of intercepting and destroying hostile craft and ships before they reach their target/s. 
* F = Fighter
* P = Patrol
|-
| [[Privateer Vessel]]
| PRP
| [[Slade Mark I class Frontier Raider]]
| Privateers are a polity-sanctioned vessel that raids opposing polity vessels with a legal sanction.
* P = Pirate 
* R = Raider,  Commerce Raider, [[etc.]]
* P = Privateer
|-
| [[Surveillance Scout]] / [[Intelligence Vessel]]
| SI
| [[Gishiash class Stealth Scout]]
| ''Surveillance Ships'' generally are focused on monitoring less-friendly areas - border regions, semi-denied and occasionally denied territory. Their primary "weapon" is a comprehensive sensor and computer fit; their primary defense is stealth and passive defense. Surveillance scouts often serve intelligence roles, picket roles, and observation roles, monitoring certain parts of space or certain groups and places of interest.
* S = Scout
* I = Intelligence, Spy, [[Picket Boat]], Stealth, Surveillance, [[etc.]]
|-
!colspan="4"| ''NOTES:'' There is semantic overlap between many of the classes and codes. Some codes organize by mission or capability, others by size and [[ton]]nage, and yet others by other characteristics.
|-
|}

== History & Background ([[Dossier]]) ==
Military engineering is a constant tug of war conducted over millennia as competing technologies are continually developed, each changing the nature of warfare. The battle rider / carrier concept is only one of many relatively contemporary concepts that has been experimented with.

And the balance of defensive to offensive combat allocation is another. H-class vessels represent efforts to bolster the demands of security and defensive needs. These vessels and craft specialize in defending the smallest possible unit of value in an interstellar age, the star system. They include all manner of defenders from the smallest police smallcraft to the ubiquitous system defense boat to the mightiest of monitors. They often form the first and last line of defense as well as everything inbetween. 

=== Selected Variant Types & Classes ===
''[[Paramilitary Ship]] - [[Defender Vessel]]:'' <br>
# [[Type HD class Defender Vessel]]
## [[Able class War Rocket]]
## [[B-46 class Attack Torpedo Boat]]
## [[Bando class Attack Boat]]
## [[Dassa class Attack Boat]]
## [[Temakurm class Attack Boat]]

''[[Paramilitary Ship]] - [[Bounty Hunter Vessel]]:'' <br>
# [[Type HH class Bounty Hunter Vessel]]
## [[Chiron class Hunter]]
## [[Gorgon class Hunter]]
## [[Huntress class Bounty Hunter]]
## [[Type HT class Bounty Hunter]]

''[[Paramilitary Ship]] - [[Monitor]]:'' <br>
# [[Type HM class Monitor]]
## [[Archipelago class System Monitor]]
## [[Cabon class System Monitor]]
## [[Colby class Monitor]]
## [[Donnager class Monitor]]
## [[Harris class Monitor]]
## [[Kaga class System Monitor]]
## [[Khaar's Will class System Monitor]]
## [[Knuckle Head class System Defense Monitor]]
## [[MacHeany class Monitor]]
## [[Mighty Maelstrom class System Defense Monitor]]
## [[Quesha FR-6 class Buffered Asteroid Monitor]]
## [[Shiishu class Monitor]]
## [[TBD class TBD]]
## [[TBD class TBD]]
## [[TBD class TBD]]
## [[TBD class TBD]]
## [[TBD class TBD]]
## [[TBD class TBD]]

''[[Paramilitary Ship]] - [[Planetoid Monitor]]:'' <br>
# [[Type HMP class Planetoid Monitor]]
## [[Defender class Planetoid Monitor]]
## [[Empress Troyhune class Planetoid Monitor]]
## [[Guardian class Asteroid Monitor]]
## [[Hukkert class Monitor]]
## [[Methuselah class System Defense Monitor]]
## [[Obsidian class Asteroid Monitor]]
## [[Peset class Asteroid Monitor]]
## [[Porton class Asteroid Monitor]]
## [[Sable class Heavy System Defense Monitor]]
## [[SH2K Frost G class Medium Asteroid Monitor]]
## [[SH7K Fromaag class Heavy Asteroid Monitor]]
## [[Temarn class Asteroid Monitor]]
## [[Type M2M class Planetoid Battle Station]]

''[[Paramilitary Ship]] - [[Police Vessel]]:'' <br>
# [[Type HP class Police Vessel]]
## [[Barrister class Patrol Frigate]]
## [[Duke class Light Security Vessel]]
## [[Ice Pick class Patrol Skiff]]
## [[Mont-GC class Patrol Corvette]]
## [[Oversight class Police Cruiser]]
## [[Remora class Revenue Collector]]
## [[Stenka class Security Vessel]]
## [[Trekhyair class Quarantine Cutter]]

''[[Paramilitary Ship]] - [[Q-Ship]]:'' <br>
# [[Type HQT class Q-Ship]]
## [[Admiral Bertil class Commerce Protection Ship]]
## [[Ashigaru class Q-ship]]
## [[Fenris class Q-ship]]
## [[Gyro Cadis class Q-ship]]
## [[Sokhkhun class Raider Q-Carrier]]
## [[Type QT class Q-ship]]
## [[Vigilant class Starmerc Armed Liner]]
## [[Yellow Jacket class Q-Ship]]
## [[Yeoman class Attack Cargo Vessel]]
## [[Zahzicih class Q-ship]]

''[[Paramilitary Ship]] - [[System Defense Boat]]:'' <br>
# [[Type HS class System Defense Boat]]
## [[Able class War Rocket]]
## [[Arden class System Defense Boat]]
## [[B-46 class Attack Torpedo Boat]]
## [[Bandersnatch class System Defense Boat]]
## [[Bando class Attack Boat]]
## [[Caryatid class System Defense Boat]]
## [[Chiang class System Defense Boat]]
## [[Cudin class Attack Boat]]
## [[Dassa class Attack Boat]]
## [[Dragon class System Defense Boat]]
## [[Dzegkno class System Defense Boat]]
## [[Fazachu class System Defense Boat]]
## [[Flash class System Defense Boat]]
## [[Fringian System Defense Boat]]
## [[Frundsberg class System Defense Boat]]
## [[Gundong class System Defense Boat]]
## [[Harrier class System Defense Boat]]
## [[Holdfast class Heavy System Defense Boat]]
## [[Jugendworld class System Defense Boat]]
## [[Khanate class System Defense Boat]]
## [[Nassin class System Defense Boat]]
## [[Oromet class System Defense Boat]]
## [[Penner class System Defense Boat]]
## [[Roye class System Defense Boat]]
## [[Scorpion class System Defense Boat]]
## [[Sentry class System Defense Boat]]
## [[Sheppard class Patrol Rocket]]
## [[Shukugan class System Defense Boat]]
## [[Sirocco Converge class Attack Boat]]
## [[Stedlas class System Defense Boat]]
## [[Temakurm class Attack Boat]]
## [[Thele class System Defense Boat]]
## [[Tigershark class Patrol Boat]]
## [[Tristar class System Defense Boat]]
## [[Torch class System Defense Boat]]
## [[Val Marin class System Defense Boat]]
## [[Wolvesbane class System Defense Boat]]
## [[Wyvern class System Defense Boat]]
## [[Wyrm class System Defense Boat]]
## [[Yunus class System Defense Boat]]
## [[Zhodatl class System Defense Boat]]
## [[Zhodq class System Defense Boat]]
## [[Zydeterranal class System Defense Boat]]
## [[Zydpedallion class System Defense Boat]] 
## [[Zydpharn class System Defense Boat]]

''[[Paramilitary Ship]] - [[Patrol Ship]]:'' <br>
# [[Type HT class Patrol Ship]]
## [[Barekdoldin class Patrol Cruiser]]
## [[Dyaus class Patrol Cruiser]]
## [[Jaghara class Patrol Cruiser]]
## [[KE5 Cataclysm class Patrol Boat]]
## [[Kharsis class Patrol Cruiser]]
## [[Lurushaar Kilaalum class Corvette]]
## [[Nemesis class Pursuit Ship]]
## [[Rudra class Patrol Cruiser]]
## [[Salient class Patrol Frigate]]
## [[Sang-O class Patrol Ship]]
## [[She Zhenɡ Zhe class Patrol Boat]]
## [[Shivva class Patrol Frigate]]
## [[TC17 Deckert class Patrol Cruiser]]
## [[Tiaflfiet class Patrol Frigate]]
## [[Tigershark class Patrol Boat]]
## [[Trinity class Patrol Ship]]
## [[Type T class Patrol Cruiser]]
## [[Vayu class Patrol Cruiser]]
## [[Voluspa class Patrol Escort]]
## [[Xadis class Patrol Ship]]
## [[Yugo class Patrol Ship]]

''[[Paramilitary Vessel]] - [[Privateer Vessel]]s:'' <br>
{{:Referral-Tree-Type-PRP-class-Privateer-Vessel}}

=== Ship Summary List ===
Some of the most commonly used vessels in this role include:
{{Ship summary list|name= Security Vessel |tdes= H }}
{{Ship summary list|name= Defender |tdes= HD }}
{{Ship summary list|name= Bounty Hunter Vessel |tdes= HH }}
{{Ship summary list|name= Monitor |tdes= HM }}
{{Ship summary list|name= Planetoid Monitor |tdes= HMP }}
{{Ship summary list|name= Police Vessel |tdes= HP }}
{{Ship summary list|name= Q-Ship |tdes= HQT }}
{{Ship summary list|name= System Defense Boat |tdes= HS }}
{{Ship summary list|name= Patrol Ship |tdes= HT }}
{{Ship summary list|name= Privateer Vessel |tdes=PRP}}

== References & Contributors ([[Sources]]) ==
{{Intermediate}}
{{Detail}}
{{Sources
|S1= This article is an amalgamation of many different materials published since 1977.
|S3= [[Traveller Wiki Editorial Team]]
|S4= Author & Contributor: Lord (Marquis) and Master of Sophontology [[Maksim-Smelchak]] of the [[Ministry of Science]] 
}}


[[Category: Ship Organization]]
[[Category: Ship type definitions]]
[[Category: Supraclass]]
{{LEN|}}