System Defense Boat

Line Combatants (Primary - Capital)				Escort Combatants (Secondary - Subcapital)				Military Auxiliary (Tertiary)
B- Battleship	C- Cruiser	O- Ortillery	V- Carrier	D- Destroyer	E- Escort	F- Fighter	H- Defense/Security	I- Combat Transport	Q- Combat Support	S- Scout	U- Utility	X- Commo	Z- Special

Mercantile Commercial Ships (Trade & Profit)				Non-Mercantile Commercial Ships (Industry & Profit)					Non-Commercial Ships (Nonprofit)			System Craft (Intrastellar)
A- Tramp	M- Freighter	R- Liner	T- Transport	G- Industrial	J- Prospector	K- Expedition	P- Corsair	U- Utility	L- Science	N- Medical	Y- Private	WB- Barge	WA- Satellite	WO- Space Station

The HD/HSB-class System Defense Vessels are a defensive spaceship supraclass.

• System Defense Boats (SDBs) are generally considered paramilitary vessels even when in military service since they don't perform an offensive role.
• SDBs are grouped as H-class Defense/Security Vessels, and include both smallcraft and bigcraft.
• They are smaller non-starships specifically intended for defensive operations inside a star system.

• System Defense Vessels (SDVs) are larger and share similar mission roles with Monitors. But whereas Monitors normally remain near their station and thus tend to be constructed with low tactical mobility and heavy armor, SDVs tend to have a wider range of mission parameters and thus tend to have a wider range of tactical mobilities and are more varied in their specifications.
• SDVs come in a number of guises: capital and subcapital ships (monitors), dreadnoughts (supermonitors), sentries, as well as other bigcraft and support vessels.
• They are non-starships specifically intended for defensive operations inside a star system.

Description (Specifications)

Most System Defense Boats (SDB's) range in size from 100 to 1,000 tons and are constructed at all tech levels from TL-7 to 15. Vessels between 1,000 and 5,000 tons are more properly classified as Very Light or Light System Defense Vessels (SDV's), though Very Light SDVs are ocassionally called "Heavy System Defense Boats". They have a variety of specific mission subtypes.

Image Repository

Type HSL Light System Defense Boat (SB/SBL):

1. The 200ton Flash class System Defense Boat (SB) is part of many an effective COACC system.
   

Type HSB System Defense Boat (SB):

1. A side view of a 400ton Type SB class System Defense Boat.
   
2. A 400ton Drakkon class System Defense Boat.
   
3. A 400ton Dragon class System Defense Boat in action safeguarding a gas giant from marauders wanting to perform wilderness refueling.
   
4. A 500ton Caryatid class System Defense Boat coming into a spaceyard for routine maintenance..
   

Type HSDB Heavy System Defense Boat:

1. The 1000ton Wasp class System Defense Boat has been sold widely throughout Charted Space.
   
2. The 2000ton Scorpion class System Defense Boat was once a big seller to many a Planetary Navy.
   

Type HDL Light System Defense Vessel (LSDV):

1. A heavily armored 2900ton Arden class SDV.
   

Strategy & Tactics (Doctrine)

SDBs most often operate according to predetermined plans designed to optimize their defensive potential. SDBs are typically stationed at the vital points of a system including gas giants, asteroid belts, major worlds, and so on. Because SDBs usually have no jump drives, shifting them from system to system can be a problem. Some types have jump shuttles which fit to the craft and provide jump capability. Another method is simple transport in large bulk cargo containers; the SDBs are loaded into 10,000-ton or 20,000-ton bulk carriers for the multi-parsec journey. This method, of course, is not recommended if immediate combat is expected at the destination.

Supraclass Roles

SDBs and SDVs typically serve the following roles:
Smallcraft & Bigcraft, supplemented by Largecraft:

HSL-class System Defense Boat Supraclass Archetypes
Archetype	Type Code
Defenders	(HD)
Defensive Ship	(HD)
System Defense Craft	(HD)
Gunboats	(EG) (GB)
Missile Boats (Torpedo Boats)	(EM) (MB)
System Defense Boat (DB)	(HDB/HSB) (Namesake /SDB)
System Missile Defense Boat (DB)	(HDB/HSB) (SDB)
System Defense Vessels (DV)	(HD) (Namesake / SDV)
Very Light System Defense Vessels (DV)	(HDVL) (SDB)
Light System Defense Vessels (DV)	(HDL)
Medium System Defense Vessels (DV)	(HDM)
Heavy System Defense Vessels (DV / DN)	(HDH)
Superheavy System Defense Vessels (DN)	(HDS)
Ultraheavy System Defense Vessels (DN)	(HDU)

Size-Class Roles for System Defense Vessels

» System Defense Craft (HD/S)

1. Utility Craft (U) (1 to 99 tons)
2. System Defense Boats (DB): (HDB/HS(B))
   1. Light System Defense Boat (HDBL: HSL/HSB): (up to 999 tons):
      1. Very Light System Defense Boat (HDBL/HSVL (SBL)): (up to 149 tons)
      2. "Light" System Defense Boat (HDBL/HSL (SB)): (100 to 249 tons)
      3. System Defense Boat (HDB/HSB (SB/SDB)): (250 to 999 tons)
   2. Very Light System Defense Vessel (HDVL/HSDB): (1,000 to 2,499 tons):
      1. Heavy System Defense Boat (HDB/HSDB (SDB)): (1,000 to 2,499 tons)
3. System Defense Vessels (DV): (HD)
   1. Light System Defense Vessel (HDL) (2,500 to 9,999 tons)
   2. Medium System Defense Vessel (HDV) (10,000 to 24,999 tons)
   3. Heavy System Defense Vessel (HDH) (25,000 to 99,999 tons)
   4. Superheavy System Defense Vessel (HDS) (100,000 to 249,999 tons)
   5. Ultraheavy System Defense Vessel (HDU) (250,000 or more tons)

Military Subcraft

Some of these vessels (...both smallcraft and bigcraft) are carried by larger Military Largecraft and Bigcraft as Military subcraft in the following roles:

1. Battle Rider (BR)
2. Combat Barge (WBG)
3. Combat Transport Smallcraft (UI)
4. Fighters (F)
5. Militarized Utility Craft (UQ)

Supraclass Archetypes

There are hundreds of different types, depending upon the specific mission for which they are designed.

System Defense Boat Supraclass Archetypes
Archetype	Type Code	Exemplar	Remarks
0) SYSTEM DEFENSE CRAFT: Defense Escort System Defense Boat System Defense Vessel Very Light System Monitor	HSE/DE HSB/HDB HD/DV HM/DN(VL)	Please see: Planetary Navy: System Squadron	H = Defender / Security S = Security (Paramilitary) / System D = Defense (Military) / Defender E = Escort (Paramilitary & Military) B = Boat (Special Paramilitary & Military)
1) Defense Escort (DE):  » Escort (Light Sloop, Gun Sloop, Gun Brig, Corvette)  » Patrol Vessel	HSE / HDE ESL / ESG / EBG	Serpent class Police Cutter	(100 to 800 tons) S = System / Sloop E = Very Light, Escort G = Gunned ESL = Light Sloop ESG = Gun-Sloop EBG = Gun-Brig
2) System Defense Boat (DB):  » Very Light System Defense Boat  » Light System Defense Boat  » System Defense Boat	HDBL (HSVL/HSL) HDB/HSB	Flash class System Defense Boat Dragon class System Defense Boat	(100 to 999 tons) SBL = Light Security Boat / Very Light Defense Boat SB/DBL = Security Boat/ Light Defense Boat (S)DB = (System) Defense Boat
3) Very Light System Defense Vessel (DG):  » Heavy System Defense Boat  » Defense Frigate  » Very Light System Monitor	HDB/HSDB HDVL/HMVL	Wasp class System Defense Boat Scorpion class System Defense Boat	(1,000 to 2,499 tons) HDB/SDB = Heavy System Defense Boat HDG/SDG = Defense Frigate EDV/DVG = Point-Defense Vessel
4) Light System Defense Vessel (DV)  » Light System Defense Cruiser (SDV/SDCL)  » Rapid-Response Vessel (RRV/RDV)  » System Control Vessel/System Defense Carrier (SCV/SVD)	HDL	Purvaine class System Defense Vessel	(2,500 to 9,999 tons) L = Light D = Defence Interceptor Vessel
5) (Medium) System Defense Vessel (DV)  » System Defense Cruiser (SDV/SDC)	HDM/HDV	None	(10,000 to 24,999 tons) M = Medium D = System Defence Cruiser
6) Heavy System Defense Vessel (DV)  » System Dominance Vessel (SDV/SCG)  » Defense Cruiser-Monitor (DCV/DCG)	HDH	None	(25,000 to 99,999 tons) H = Heavy D = System Defence Cruiser/Monitor
7) Superheavy System Defense Vessel (DN)	HDS	None	(100,000 to 249,999 tons) S = Superheavy D = System Dominance Vessel
8) Ultraheavy System Defense Vessel (DN)	HDU	None	(250,000 or more tons) U = Ultraheavy D = System Dominance Vessel

History & Background (Dossier)

SDB's and SDVs were developed on the principle that a non-starship, because of the additional armament made possible by its lack of jump drives, can ordinarily defeat a jump-capable starship of equal tonnage.

Selected Variant Types & Classes

Paramilitary Vessel - Defensive Vessel (D) - System Defense Boats (DB):

1. Type HS(B) & HDB class System Defense Boats
   1. Type HDBL/HSVL class: Very Light System Defense Boat (SBL)
      1. Roye class System Defense Boat
      2. Temakurm class Attack Boat
   2. Type HDBL/HSL class: Light System Defense Boat (SB)
      1. Exarch class System Defense Boat
      2. Flash class System Defense Boat
      3. K56 class System Defense Boat
      4. Reginald class System Defense Boat
      5. Torch class System Defense Boat
      6. Wolvesbane class System Defense Boat
      7. Zydpharn class System Defense Boat
   3. Type HDB/HSB class: System Defense Boat (SB/SDB)
      1. Type SB class System Defense Boat.
      2. Avoram class System Defense Boat
      3. Caryatid class System Defense Boat
      4. Condor class System Defense Boat
      5. Dragon class System Defense Boat
      6. Drakkon class System Defense Boat
      7. Farnex class System Missile Defense Boat
      8. Fazachu class System Defense Boat
      9. Gundong class System Defense Boat
      10. Harrier class System Defense Boat
      11. Holdfast class Heavy System Defense Boat
      12. Kuomsi class System Defense Boat
      13. Penner class System Defense Boat
      14. Pounce class System Defense Boat
      15. Ronix class Asteroid Patrol Boat
      16. Sentry class System Defense Boat
      17. Shukugan class System Defense Boat
      18. Stedlas class System Defense Boat
      19. Thele class System Defense Boat
      20. Vernon Powell class System Defense Boat
      21. Wyvern class System Defense Boat
      22. Wyrm class System Defense Boat
      23. Zhodq class System Defense Boat
2. Type HDB/HSDB class: Heavy System Defense Boat (SDB) & Type HDVL class: Very Light System Defense Vessel (HDVL)
   1. Dzegkno class System Defense Boat
   2. Frundsberg class System Defense Boat
   3. Grunt class System Defense Boat
   4. Jugendworld class System Defense Boat
   5. K1074 class Heavy System Defense Boat
   6. K282 class Heavy System Defense Boat
   7. Khanate class System Defense Boat
   8. Nassin class System Defense Boat
   9. Ramrod class Missile Boat
   10. Wasp class System Defense Boat
   11. Scorpion class System Defense Boat
   12. Zhodatl class System Defense Boat
   13. Zydpedallion class System Defense Boat

Paramilitary Vessel - Defensive Vessel - System Defense Vessel:
1. Paramilitary Vessel - Defensive Vessels: (Very Light System Defense Vessels):

Paramilitary Vessel - Defensive Vessel (D) - System Defense Boat (DB):

Type HDB/HSB class: System Defense Boat (DB)

1. Type HSDB class: Heavy System Defense Boat (SDB)

1. Frundsberg class System Defense Boat (1000 dton)
2. Grunt class System Defense Boat (1000 dton)
3. Jugendworld class System Defense Boat (1000 dton)
4. Khanate class System Defense Boat (1000 dton)
5. Ramrod class Missile Boat (1000 dton)
6. Wasp class System Defense Boat (1000 dton)
7. Zhodatl class System Defense Boat (1000 dton)
8. Zydpedallion class System Defense Boat (1000 dton)
9. K1074 class Heavy System Defense Boat (1200 dton)
10. K282 class Heavy System Defense Boat (1200 dton)
11. Vishe class "Light Monitor" Heavy SDB (1400 dton)
12. Dzegkno class Heavy System Defense Boat (2000 dton)
13. Nassin class Heavy System Defense Boat (2000 dton)
14. Scorpion class Heavy System Defense Boat (2000 dton)

Paramilitary Vessel - Defensive Vessel (D) - System Defense Vessel (DV):

Type HD class: System Defense Vessel (DV)

1. Type HDVL class: Very Light System Defense Vessel (DSVL)

1. Knuckle Head class "Point Defense Interceptor" (LSDV - 1000 dton)
2. Eclipse Serpens class Light System Defense Vessel/HSDB (LSDV - 2000 dton)

Paramilitary Vessel - Defensive Vessel (D) - System Defense Monitor (DN):

Type HM class: System Defense Monitor (DN) (includes Point-Defense Vessel (EDV/DVG))

1. Type HMVL class: Very Light System Defense Monitor (NSVL)

1. Kaga class System Monitor (Light Point-Defense Vessel - 200 dton)
2. Porton class Asteroid Monitor (Light Patrol SDB - 351 dton)
3. Knuckle Head class System Defense Monitor (Point Defense Interceptor - 1000 dton)
4. Vishe class Light Monitor (Heavy SDB - 1400 dton)

2. Paramilitary Vessel - Defensive Vessels: (General System Defense Vessels):

Type HD class: System Defense Vessel (DV)

1. Type HDL class Light System Defense Vessel (includes Type HDF Rapid-Response Vessel)
   1. Arden class Light System Defense Vessel (LSDV - 2900 dton)
   2. Frost Bite class System Defense Vessel (LSDV - 3000 dton)
   3. Tristar class Light System Defense Vessel (LSDV - 3000 dton)
   4. Val Marin class Light System Defense Vessel (LSDV - 3000 dton)
   5. Yunus class System Defense Vessel (SDV - 3300 dton)
   6. Oromet class System Defense Vessel (SDV - 5000 dton)
   7. Rim Republic class System Defense Vessel (SDV - 5000 dton)
   8. Purvaine class System Defense Vessel (SDV - 7500 dton)
2. Type HDM class Medium System Defense Vessel (includes Type HDC System Defense Cruiser)
   1. None
3. Type HDH class Heavy System Defense Vessel AKA Type HDC/HMC Cruiser-Monitor
   1. Hive Protector class System Defense Vessel (Heavy System Defense Cruiser/Cruiser-monitor - 49,000 dton)
4. Type HDS class Supraheavy System Defense Vessel AKA Type HDB/HMB Battlemonitor
   1. None
5. Type HDU class Ultraheavy System Defense Vessel AKA Type HDD/HDG Supermonitor
   1. None

Paramilitary Vessel - Auxiliaries:
Paramilitary Vessels - Jump Shuttles:

1. Type VJ class Jump Shuttle
   1. Volare class Jump Shuttle
   2. WP-768 class Jump Shuttle
2. Type JS class Jump Ship
   1. Brown class Jump Ship

Ship Summary List

38 Representative System Defense Craft (HS) Classes

Class Mission Code TL Tons Jump G Origin Canon Quick ship profile Class Mission Code TL Tons Jump G Origin Canon Quick ship profile Arden class Heavy System Defense Boat HSDB 8 2,900 0 5 Federation of Arden No. Unpublished, non-canon fan design. HSDB-02S50 Caryatid class System Defense Boat HSB 14 500 0 5 Third Imperium No. Unpublished, non-canon fan design. TBD Condor class System Defense Boat HSB 15 500 0 6 Non-Aligned Yes. Published, canon starship design. TBD Condor class System Defense Boat HSB 15 500 0 6 Non-Aligned Yes. Published, canon starship design. HSB-ES11 Condor class System Defense Boat HSVL 15 500 0 6 Non-Aligned Yes. Published, canon starship design. TBD Dragon class System Defense Boat HSB 12 400 0 6 Third Imperium Yes. Published, canon starship design. HSB-4S60 Dragon class System Defense Boat HSB 12 400 0 6 Third Imperium Yes. Published, canon starship design. HSB-DS60 Dragon class System Defense Boat HSVL 12 400 0 6 Third Imperium Yes. Published, canon starship design. HSB-4S60 Drakkon class System Defense Boat HSVL 11 400 0 6 Distant Fringe No. Unpublished, non-canon fan design. SB-DA60 Eclipse Serpens class Light System Defense Boat HSVL 13 2,000 0 6 Talokan Armed Forces TBD Flash class System Defense Boat HSB 15 200 0 6 Third Imperium Yes. Published, canon starship design. HSB-BS60 Flash class System Defense Boat HSL 15 200 0 6 Third Imperium Yes. Published, canon starship design. HSB-BS60 Flash class System Defense Boat HSL 15 200 0 6 Third Imperium Yes. Published, canon starship design. HSL-BS60 Harrier class System Defense Boat HSVL 12 600 0 6 Distant Fringe No. Unpublished, non-canon fan design. TBD Nassin class System Defense Boat HSVL 9 2,000 0 6 Rimward Federation No. Unpublished, non-canon fan design. TBD Reginald class System Defense Boat HSB 10 200 0 6 Non-Aligned No. Unpublished, non-canon fan design. HSB-AP60 Reginald class System Defense Boat HSL 10 200 0 6 Non-Aligned No. Unpublished, non-canon fan design. HSB-AP60 Reginald class System Defense Boat HSL 10 200 0 6 Non-Aligned No. Unpublished, non-canon fan design. HSL-AP60 Roye class System Defense Boat HSVL 10 100 0 6 Non-Aligned No. Unpublished, non-canon fan design. HSL-AP60 Scorpion class System Defense Boat HSDB 15 2,000 0 6 Third Imperium Yes. Published, canon starship design. HSDB-VS60 Scorpion class System Defense Boat HSDB 15 2,000 0 6 Third Imperium Yes. Published, canon starship design. HSDB-VS60 Scorpion class System Defense Boat HSVL 15 2,000 0 6 Third Imperium Yes. Published, canon starship design. HSDB-VS60 Shukugan class System Defense Boat HSB 12 400 0 6 Third Imperium Yes. Published, canon starship design. HSB-DS60 Thele class System Defense Boat HSVL 9 800 0 6 Firstworlds No. Unpublished, non-canon fan design. TBD Thele class System Defense Boat HSVL 9 800 0 6 Firstworlds No. Unpublished, non-canon fan design. TBD Torch class System Defense Boat HSB 15 200 0 20 Third Imperium No. Unpublished, non-canon fan spaceship design. HSB-BAJ0 Torch class System Defense Boat HSL 15 200 0 20 Third Imperium No. Unpublished, non-canon fan spaceship design. HSB-BAJ0 Torch class System Defense Boat HSL 15 200 0 20 Third Imperium No. Unpublished, non-canon fan spaceship design. HSL-BAJ0 Torch class System Defense Boat HSVL 15 200 0 20 Third Imperium No. Unpublished, non-canon fan spaceship design. HSB-BAJ0 Val Marin class System Defense Boat HSL 10 3,000 0 6 High Senate No. Unpublished, non-canon fan design. Val Marin class System Defense Boat HSL 10 3,000 0 6 High Senate No. Unpublished, non-canon fan design. Val Marin class System Defense Boat HSL 10 3,000 0 6 High Senate No. Unpublished, non-canon fan design. Val Marin class System Defense Boat HSL 10 3,000 0 6 High Senate No. Unpublished, non-canon fan design. Val Marin class System Defense Boat HSL 10 3,000 0 6 High Senate No. Unpublished, non-canon fan design. Vernon Powell class System Defense Boat HSB 10 700 0 6 Yeeshim (world) No. Unpublished, non-canon fan design. HSB-05S60 Wasp class System Defense Boat HSDB 15 1,000 0 6 Third Imperium Yes. Published, canon starship design. HSDB-KS60 Wasp class System Defense Boat HSDB 15 1,000 0 6 Third Imperium Yes. Published, canon starship design. HSDB-KS60 Yunus class System Defense Boat HSL 8 3,300 0 5 Khuur League No. Unpublished, non-canon fan design. TBD

11 Representative Very Light System Defense Boat (HSVL) Classes

Class Mission Code TL Tons Jump G Origin Canon Quick ship profile Class Mission Code TL Tons Jump G Origin Canon Quick ship profile Condor class System Defense Boat HSVL 15 500 0 6 Non-Aligned Yes. Published, canon starship design. TBD Dragon class System Defense Boat HSVL 12 400 0 6 Third Imperium Yes. Published, canon starship design. HSB-4S60 Drakkon class System Defense Boat HSVL 11 400 0 6 Distant Fringe No. Unpublished, non-canon fan design. SB-DA60 Eclipse Serpens class Light System Defense Boat HSVL 13 2,000 0 6 Talokan Armed Forces TBD Harrier class System Defense Boat HSVL 12 600 0 6 Distant Fringe No. Unpublished, non-canon fan design. TBD Nassin class System Defense Boat HSVL 9 2,000 0 6 Rimward Federation No. Unpublished, non-canon fan design. TBD Roye class System Defense Boat HSVL 10 100 0 6 Non-Aligned No. Unpublished, non-canon fan design. HSL-AP60 Scorpion class System Defense Boat HSVL 15 2,000 0 6 Third Imperium Yes. Published, canon starship design. HSDB-VS60 Thele class System Defense Boat HSVL 9 800 0 6 Firstworlds No. Unpublished, non-canon fan design. TBD Thele class System Defense Boat HSVL 9 800 0 6 Firstworlds No. Unpublished, non-canon fan design. TBD Torch class System Defense Boat HSVL 15 200 0 20 Third Imperium No. Unpublished, non-canon fan spaceship design. HSB-BAJ0

12 Representative Light System Defense Boat (HSL) Classes

Class Mission Code TL Tons Jump G Origin Canon Quick ship profile Class Mission Code TL Tons Jump G Origin Canon Quick ship profile Flash class System Defense Boat HSL 15 200 0 6 Third Imperium Yes. Published, canon starship design. HSB-BS60 Flash class System Defense Boat HSL 15 200 0 6 Third Imperium Yes. Published, canon starship design. HSL-BS60 Reginald class System Defense Boat HSL 10 200 0 6 Non-Aligned No. Unpublished, non-canon fan design. HSB-AP60 Reginald class System Defense Boat HSL 10 200 0 6 Non-Aligned No. Unpublished, non-canon fan design. HSL-AP60 Torch class System Defense Boat HSL 15 200 0 20 Third Imperium No. Unpublished, non-canon fan spaceship design. HSB-BAJ0 Torch class System Defense Boat HSL 15 200 0 20 Third Imperium No. Unpublished, non-canon fan spaceship design. HSL-BAJ0 Val Marin class System Defense Boat HSL 10 3,000 0 6 High Senate No. Unpublished, non-canon fan design. Val Marin class System Defense Boat HSL 10 3,000 0 6 High Senate No. Unpublished, non-canon fan design. Val Marin class System Defense Boat HSL 10 3,000 0 6 High Senate No. Unpublished, non-canon fan design. Val Marin class System Defense Boat HSL 10 3,000 0 6 High Senate No. Unpublished, non-canon fan design. Val Marin class System Defense Boat HSL 10 3,000 0 6 High Senate No. Unpublished, non-canon fan design. Yunus class System Defense Boat HSL 8 3,300 0 5 Khuur League No. Unpublished, non-canon fan design. TBD

10 Representative System Defense Boat (HSB) Classes

Class Mission Code TL Tons Jump G Origin Canon Quick ship profile Class Mission Code TL Tons Jump G Origin Canon Quick ship profile Caryatid class System Defense Boat HSB 14 500 0 5 Third Imperium No. Unpublished, non-canon fan design. TBD Condor class System Defense Boat HSB 15 500 0 6 Non-Aligned Yes. Published, canon starship design. TBD Condor class System Defense Boat HSB 15 500 0 6 Non-Aligned Yes. Published, canon starship design. HSB-ES11 Dragon class System Defense Boat HSB 12 400 0 6 Third Imperium Yes. Published, canon starship design. HSB-4S60 Dragon class System Defense Boat HSB 12 400 0 6 Third Imperium Yes. Published, canon starship design. HSB-DS60 Flash class System Defense Boat HSB 15 200 0 6 Third Imperium Yes. Published, canon starship design. HSB-BS60 Reginald class System Defense Boat HSB 10 200 0 6 Non-Aligned No. Unpublished, non-canon fan design. HSB-AP60 Shukugan class System Defense Boat HSB 12 400 0 6 Third Imperium Yes. Published, canon starship design. HSB-DS60 Torch class System Defense Boat HSB 15 200 0 20 Third Imperium No. Unpublished, non-canon fan spaceship design. HSB-BAJ0 Vernon Powell class System Defense Boat HSB 10 700 0 6 Yeeshim (world) No. Unpublished, non-canon fan design. HSB-05S60

5 Representative Heavy System Defense Boat (HSDB) Classes

Class Mission Code TL Tons Jump G Origin Canon Quick ship profile Class Mission Code TL Tons Jump G Origin Canon Quick ship profile Arden class Heavy System Defense Boat HSDB 8 2,900 0 5 Federation of Arden No. Unpublished, non-canon fan design. HSDB-02S50 Scorpion class System Defense Boat HSDB 15 2,000 0 6 Third Imperium Yes. Published, canon starship design. HSDB-VS60 Scorpion class System Defense Boat HSDB 15 2,000 0 6 Third Imperium Yes. Published, canon starship design. HSDB-VS60 Wasp class System Defense Boat HSDB 15 1,000 0 6 Third Imperium Yes. Published, canon starship design. HSDB-KS60 Wasp class System Defense Boat HSDB 15 1,000 0 6 Third Imperium Yes. Published, canon starship design. HSDB-KS60

2 Representative Very Light System Monitor (HMVL) Classes
Class Mission Code TL Tons Jump G Origin Canon Quick ship profile Class Mission Code TL Tons Jump G Origin Canon Quick ship profile Knuckle Head class System Defense Monitor HMVL 8 1,000 0 4 Winston Democracy No. Unpublished, non-canon fan design. TBD Vishe class Light Monitor HMVL 12 1,400 0 6 Third Imperium Yes. Published, canon starship design. TBD

5 Representative System Defense Vessel (HD) Classes

Class Mission Code TL Tons Jump G Origin Canon Quick ship profile Class Mission Code TL Tons Jump G Origin Canon Quick ship profile Oromet class System Defense Boat HDL 11 5,000 0 6 Protectorate of Leset No. Unpublished, non-canon fan design. HDL-05S60 Rim Republic class Heavy System Defense Boat HDL 9 5,000 0 6 Rim Republic No. Unpublished, non-canon fan design. TBD Temakurm class Attack Boat HD 8 100 0 5 Association Naval Command No. Unpublished, non-canon fan design. TBD Temakurm class Attack Boat HDB 8 100 0 5 Association Naval Command No. Unpublished, non-canon fan design. TBD Tristar class System Defense Vessel HDL 9 3,000 0 6 Plavian League No. Unpublished, non-canon fan design.

3 Representative Light System Defense Vessel (HDL) Classes

Class Mission Code TL Tons Jump G Origin Canon Quick ship profile Class Mission Code TL Tons Jump G Origin Canon Quick ship profile Oromet class System Defense Boat HDL 11 5,000 0 6 Protectorate of Leset No. Unpublished, non-canon fan design. HDL-05S60 Rim Republic class Heavy System Defense Boat HDL 9 5,000 0 6 Rim Republic No. Unpublished, non-canon fan design. TBD Tristar class System Defense Vessel HDL 9 3,000 0 6 Plavian League No. Unpublished, non-canon fan design.

0 Representative Medium System Defense Vessel (HDM) Classes
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0 Representative Heavy System Defense Vessel (HDH) Classes
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0 Representative Supraheavy System Defense Vessel (HDS) Classes
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0 Representative Ultraheavy System Defense Vessel (HDU) Classes
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Library Data Referral Tree

Please refer to the following AAB Library Data for more information: (Click "Expand" to reveal)

Light Craft: System Small/Big Craft & Light Starships:
Smallcraft (F or U) (0 - 99 tons) (* System craft / non-Jump *)

1. Fighter: Interceptor / Picket (FD / FE / FP / FR) (10 - 50 tons)
2. Gunboat / Torpedo Boat (GB / MB / DB / EB) (40 - 99 tons)
3. Cutter (sC/qC) (45+ tons)
4. Light Sloop (ESL) (50 - 99 tons)

Bigcraft (W or Other) (100 tons or larger) (* System vessel / non-Jump *)

1. Escort Vessel (ES/ESV):
   1. Sloop-of-War (ESB/ESG) (100 - 600 tons)
   2. Gun-Brig (EB/EBG) (400 - 1000 tons)
2. Defense Boat (DB/SDB) (100 - 1,000 tons)
3. System Defense Vessel (DV/SDV) (1,000 - 2,499 tons or larger)
   1. Defense Frigate (DG) (800 - 1,200 tons)
   2. Escort Defense Cruiser (EDC) (1,000 - 2,000 tons)

Largecraft (100 tons or larger) (* Jump-capable *)

1. Escort (E):
   1. Jump-Sloop (ESJ) (100 - 600 tons)
   2. Close Escort (EC/CE) (300 - 600 tons)
   3. Corvette (E/EG) (300 - 800 tons)
2. Frigate (G):
   1. Destroyer Escort (DE) (400 - 1,000 tons)
   2. Escort Frigate (EG) (500 - 1,200 tons)
   3. Gunned Frigate (G) (500 - 1,200 tons)
3. Destroyer (D):
   1. Escort Destroyer (ED) (1,000 - 2,499 tons or larger)
4. Escort Cruiser (EC):
   1. Detached Cruiser (CC) (1,000 - 2,499 tons or larger)
      1. Colonial Cruiser (CC) (1,000 - 2,499 tons or larger)
      2. Provincial Cruiser (CC) (1,000 - 2,499 tons or larger)
   2. Destroyer Leader (DGL/DGC/DLC) (1,000 - 2,499 tons or larger)
   3. Heavy Gun-Frigate (EGC/GFC) (1,000 - 2,499 tons)

Traditionally, the historical vessels from which the names of the modern examples above are taken increased in size along the progression below.

»» For more detailed background information, please see: Origins of Vessel Naming Nomenclature.

• Gunboat »» Sloop (Single-mast) »» Sloop-of-War (Brig-Sloop (2-mast) »» Ship-Sloop (3-mast)) »» Corvette »» Escort/Patrol Frigate (Destroyer Escort) »» Destroyer (Escort Destroyer / Fleet Destroyer) »» (Destroyer Leader <> Heavy Gun Frigate) »» Cruiser »» (Heavy) Gun Cruiser

Starship:

• Starship User Types
  • Civilian Ship
  • Military Ship
  • Non-Commercial Vessel
  • Paramilitary Ship

• Advanced Ship Classifications
  • Ship Mission Code / Supraclass
  • Ship Type Code / Superclass
  • Ship Class Code / Class
  • Model (TL)
  • Bloc (Lot)

• Basic Ship Classifications
  • Adventure Class Ship (Auxiliary Class Ship)
  • Battle Class Ship (Bulk / Subcapital Class Ship)
  • Capital Ship (Capital Class Ship)
  • Fleet Class Ship (Capital Class Ship)
  • Size-Role Classification
  • Subcapital Ship (Small & Large Battle Class Ships)
  • QSP
  • USP
  • World Class Ship

• Ships by Function
  • Bigcraft
  • Boat
  • Capital Ship
  • Largecraft
  • Non-starship
  • Smallcraft
  • Spaceplane
  • Spaceship
  • Starship
  • Subcapital Ship
  • Subcraft
  • System Craft
  • Warship

Speed of Travel

• NAFAL (STL) - (Not As Fast As Light) / (Slower Than Light)
• Light Speed (c)
• FTL - (Faster Than Light) - "Superluminal"

• Astronomical Unit (AU)

» Imperial Standard Astronomical Unit

• Light-second (ls)
• Light-minute (lm)
• Light-hour (lh)
• Light-day (ld)
• Light-week (lw)
• Light-year (ly)
• Parsec (pc)

» Solomani Parsec

» Vilani Parsec ("Deshi")

» Imperial Standard Parsec

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References & Contributors (Sources)

This page uses content from Wikipedia. The original article was at Coastal_defence_ship. The list of authors can be seen in the page history. The text of Wikipedia is available under the Commons Attribution-ShareAlike 3.0 Unported License.

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This list of sources was used by the Traveller Wiki Editorial Team and individual contributors to compose this article. Copyrighted material is used under license from Mongoose Publishing or by permission of the author. The page history lists all of the contributions.

• This article is an amalgamation of many different materials published since 1977.
• Supplement 9 Fighting Ships
• Deck Plan 6: Dragon-class SDB
• Journal of the Travellers Aid Society No. 9
• 'Technical Booklet' Brilliant Lances
• Traveller: The New Era Main Rulebook (pg. 373)
• Deck Plans Seeker Gaming Systems: System Defense Boat and Jump Shuttle
• Journal of the Travellers' Aid Society 09
• Bryan Steele. Traders and Gunboats (Mongoose Publishing, 2008), TBD.
• Marc Miller, Robert Eaglestone, Don McKinney. Starships (Far Future Enterprises, 2019), 68-69.
• Marc Miller. Agent of the Imperium (Far Future Enterprises, 2015), Appendix.
• Traveller Wiki Editorial Team
• Author & Contributor: Lord (Marquis) and Master of Sophontology Maksim-Smelchak of the Ministry of Science