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SHIP PENNANT DESIGNATIONS OF GRAYS HARBOR
All ships registered in the Kingdom and Commonwealth, since 1885, share a designation system of letters and numbers for pennant and hull based on ship type. Prior to the Fleet Reorganization of 1885, ships carried a random 3 digit number for use, a number which could change many times throughout the life of the ship. Since 1885 all ships within each classification have been numbered sequentially based on the authorization date of the vessel, the availability of numbers, or entrance to the Royal Navy (if purchased after completion).

A –AUXILLERY (Naval Auxiliaries 1885- 1907; RFA from 1907)
B – BATTLESHIP
C – CRUISER (Protected & Armoured Cruisers 1885-1925; All Cruisers after 1925)
D – DESTROYER
E – 3rd Rate CRUISERS (1885-1925)
E – FLEET ESCORT (1925-57)
F – FRIGATE (Since 1933)
G – GUNBOAT (Obsolete, merged with P & V classifications in 1962)
H – HOSPITAL SHIPS (1885-1907, RFA after 1907)
H –MERCHANT NAVY VESSELS (Since 1933. The Merchant Navy also adds a 2nd letter for internal class designations- see below)
I – BUREAU OF LIGHTHOUSES VESSELS (The BoL also adds a 2nd letter for internal class designations- see below)
J – CIVILIAN NON-COMMERCIAL & PRIVATE MOTOR YACHTS (Since 1933. Vessels over 20 tons only are required to register.)
K – COAST GUARD VESSELS (The Coast Guard also adds a 2nd letter for internal class designations- see below)
L – AMPHIBIOUS WARFARE SHIPS
M – MINE WARFARE (sweeper/hunter)
N – BATTLECRUISER
O – OCEANOGRAPHIC BUREAU VESSELS (The OB also adds a 2nd letter for internal class designations- see below)
P – MOTOR PATROL BOATS (IPV)
Q – INTELLIGENCE
R – SCOUT CRUISER (1885-1925, Cruisers reassigned to the C designation, Aircraft Carriers retained the R)
R – AIRCRAFT CARRIER (Since 1925)
S – SUBMARINE
T – TORPEDO BOAT (1885-1921)
T - TRAINING VESSELS (Split from A classification in 1921. All training vessels were transferred to the RFA in 1963.)
U – MINE WARFARE (layer)
V – CORVETTE (OPV)
W – NAVAL WEATHER SHIP (1885-1950)
X – MOBILE PICKET PLATFORM
Y – HARBOUR CRAFT & MISCELLANEOUS
Z – NAVAL AIRSHIPS

ROYAL FLEET AUXILLERY
RFA ships share the letter designation A, and are differentiated by a numbering series starting with 0000 and going up to 9999. Each ship type is assigned a specific block of numbers. Unlike the navy, ships are not numbered sequentially, numbers being assigned as available, with most being reused after ships are retired.
0001 - 0099 – ROYAL YACHT
0100 - 0199 – HOSPITAL SHIP
0300 - 0399 TRAINING SHIP
1000 – 1099 TENDER, DESTROYER
1100 – 1199 TENDER, MOTOR PATROL BOAT
1200 – 1299 TENDER, SUBMARINE
1300 - 1349 TENDER, AIRSHIP (obsolete - 1948)
1350 – 1399 TENDER, SEAPLANE (Obsolete - 1967)
1400 – 1499 DECK SHIP
2000 – 2299 TRANSPORT. TROOP
2300 – 2399 TRANSPORT, RO-RO, EQUIPMENT
2400 – 2499 TRANSPORT SHIP, FLO/FLO
2500 – 2799 TRANSPORT, GENERAL/DRY CARGO
2800 – 2899 TRANSPORT, CONTAINER SHIP
2900 – 2999 TRANSPORT, AIRCRAFT
3000 – 3199 LANDING STORES SHIP
3200 – 3399 COMBAT STORES SHIP
3400 – 3499 AMMUNITION STORES SHIP
3500 - 3799 COLLIER (Obsolete - 1952)
3500 – 3699 DOCK/LASH SHIP (Since 1960)
3800 – 3999 FLEET OILER
4000 – 4299 FORWARD REPAIR SHIP
4300 – 4399 SALVAGE VESSEL
4400 – 4499 AIRCRAFT REPAIR SHIP, FORWARD
4500 - 4599 AVIATION LOGISTICS SHIP
5000 - 5299 HARBOUR TUG
5300 – 5499 FLEET TUG
5500 – 5549 CRANE SHIP
5550 – 5559 RECEIVING/ACCOMODATIONS SHIP
5600 – 5899 HARBOUR LIGHTER
5900 – 5999 FLOATING DRYDOCK
6000 – 6099 ICEBREAKER
7000 - 7200 FAST COMBAT SUPPORT SHIP
9000 – 9999 MISCELLANEOUS CLASSIFICATION


ROYAL OCEANOGRAPHIC BUREAU
Vessels are numbered sequentially within their classification based upon the commissioning date.
OF – FISHERIES VESSEL
OR – OCEANOGRAPHIC RESEARCH VESSEL
OS – SURVEY VESSEL
OW – WEATHER SHIP

BUREAU OF LIGHTHOUSES
Numbers are assigned at random within each classification. The number can be from 2 to 6 digits, depending on the class.
IB – BUOY TENDER, OCEAN-GOING
IC – BUOY TENDER, COASTAL
IL – LIGHTSHIP
IR – BUOY TENDER, INLAND

COAST GUARD
Numbers are assigned at random within each classification. The number can be from 2 to 6 digits, depending on the class.
KC – PILOT BOAT
KD - SMALL CRAFT, MISCELLANEOUS
KF – HARBOR TUG
KH – HIGH ENDURANCE CUTTER
KK – REPAIR & TENDER
KM – MEDIUM ENDURANCE CUTTER
KP – PATROL & CUSTOMS
KS – SEARCH & RESCUE
KT – TRAINING SHIP

MERCHANT NAVY
The letter designation + a 7 digit number serve as the official registration number of each ship, and stays with the vessel until retired.
HA – LESS THAN 500 TONS GROSS
HB – 501 TO 4999 TONS GROSS
HC – 5000 TO 11999 TONS GROSS
HD – 12000 AND OVER TONS GROSS
HT – MERCHANT NAVY ACADEMY VESSELS

(note: As with anything I do, this is subject to future modification)

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"Anybody remotely interesting is mad in some way." - The Seventh Doctor

TRAINING SHIP - PLOVER CLASS 2003



Displacement: 6613 tons
Length: 520' / 158.5 m
Beam: 60' / 18.3 m
Draught: 25' / 7.6 m
Propulsion: 2 x Shafts COGOG; 2 x Cruise Gas Turbines; 2 x High Speed Turbines
Speed: 15 knots normal, 22 HST
Range: 3,500 NM @ 15 knots
Complement: 63 RFA; 35 RN Training Staff; up to 60 Students
Armament: Nil
Aviation: Full Facilities for up to 6 Helicopters


Ships in Class
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HMA Plover - 2003 (A312)

The Plover was laid down in 2000 as a replacement for the ageing HMS Mt Diamond, which had been the RN's helicopter training ship since 1971. The initial requirement was for a vessel capable of acting as a floating classroom for ASW training for both helicopter crews and the shipboard ASW operators, so it has facilities and equipment identical to the current destroyers and frigates in the fleet. As the Plover is not intended for any combat use, she is assigned to the RFA and is unarmed except for training rounds for the helicopters.

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"Anybody remotely interesting is mad in some way." - The Seventh Doctor

What's the sonar doing onboard when the ship isn't armed?

AIRCRAFT CARRIER - BUCCANEER CLASS 1997



Displacement: 12,015 tons standard / 16,200 full load
Length: 560' / 170.7 m
Beam: Flight Deck: 76' / 23 m; Hull: 52' / 15.8 m
Draught: 32.5' / 9.9 m
Propulsion: 4 x Gas Turbines; 2 Shafts
Speed: 32.5 knots
Range: 6000 NM @ 20 knots
Complement: 278 Crew; 54 Air Group
Armament:
1 x 4.5" DP Gun
1 x Viper SSM launcher (4 missiles)
2 x 20mm CIWS
1 x Mark 29 8-cell Launcher for SeaSpike SAM
4 x 25mm Chain Gun
Aviation:
6-9 Helicopters

Ships in Class
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RN
Kraken - 1998
Centaur - 1999

Leegesia
Buccaneer - 1997
Corsair - 1999

Grayson
Columbia - 2000

Salish Confederacy
Tiyaqə́yu - 2002
Slapu - 2004

The Buccaneer class was designed as an ASW platform by the Royal Leegesian Navy in response to the requirement for them to provide a Hunter-Killer Division to the Combined Commonwealth Defence Fleet (CCDF). As building progressed on the Buccaneer, first laid down in 1994, the RN saw the utility of these vessels and ordered a pair for themselves as well, the Kraken and Centaur, with additional orders coming from the Grayson and Salish Dominions. This is the first class of vessels with the nameship of the class in a navy other than the RN.
Each CVH has extensive Flag and ASW facilities to act as the central pivot for ASW hunter-killer groups, and these groups serve as the first line of defense against submarine threats to the Fleet, and to the Kingdom and Commonwealth.

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_________________
"Anybody remotely interesting is mad in some way." - The Seventh Doctor

BATTLECRUISER - MATCHLESS CLASS



Displacement: 16,368 tons
Length: 554' / 168.9 m
Beam: 70' / 21.3 m
Draught: 30' / 9.1 m
Propulsion: 6 x Boilers; 4 x Geared Steam Turbines; 2 Shafts
Speed: 24 knots
Range: 8300 NM @ 12 knots
Complement: 928
Armament:
6 x 12" (3 x 2)
14 x 4" (7 x 2)
32 x 2 Pdr (4 x 8)
Aviation:
1 x Catapult
1 x Floatplane

Ships in Class
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Matchless (1924)
Masterful (1925)
Blackguard (1926)
Inimitable (1927)
Peerless (1928)
7 planned ships cancelled 1925 prior to being laid down

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_________________
"Anybody remotely interesting is mad in some way." - The Seventh Doctor

Same reason this ship, for example, has sonar. Navigation and avoidance of uncharted underwaters thingies which if run into could ruin everybodies day. I am pretty sure that its not for ASW purposes. At least, most supertankers and MSC supply ships aren't designed for that role that I am aware of.

EDIT: The role of this ship has been altered to be both helo and ASW training, so the sonar is the same as those used on the frigates and destroyers.

_________________
"Anybody remotely interesting is mad in some way." - The Seventh Doctor

then I suggest switching to another sonar then one of the most expensive ASW ones

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Drawings are credited with J.Scholtens
I ask of you to prove me wrong. Not say I am wrong, but prove it, because then I will have learned something new.
Shipbucket Wiki admin

edited out

_________________
"Anybody remotely interesting is mad in some way." - The Seventh Doctor

BATTLESHIP - GRENADIER CLASS



Displacement: 53,000
Length: 900' / 274.3 m
Beam: 122' / 37.2 m
Draught: 33.5' / 10.2 m
Propulsion: 16 Boilers; 8 Geared Steam Turbines; 4 Shafts
Speed: 28 knots
Range: 14,500 NM @ 15 knots
Complement: 1750
Armament:
10 x 16"/50 (2 x 3; 2 x 2)
16 x 5.25" (8 x 2)
38 x 40mm (8 x 4; 3 x 2)
38 x 20mm (38 x 1)
Aviation:
2 x Catapults
3 x Floatplane

Ships in Class
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Grenadier (1940)
Valiant (1940)
Warrior (1941)
Monarch (1942)
Invictus (1943)

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_________________
"Anybody remotely interesting is mad in some way." - The Seventh Doctor

LIGHT CRUISERS - COLONIES CLASS

WINDWARD ISLANDS CLASS
Windward Islands (1937)
Nova Harberia (1937)
New Brikken (1938)
Nastic (1938)
Laird Islands (1939)
Puhau (1939)
Genesia (Converted to Light Aircraft Carrier, renamed Wyvern - 1942)
Receland (1940)



NEWYDD ARWR CLASS
Newydd Arwr (1940)
Nua Aimsithe (Converted to Light Aircraft Carrier, renamed Vampire - 1942)
Leegesia (1941)
Western Audentia (Converted to Light Aircraft Carrier, renamed Perytin - 1943)
Whitefall (1941)
Swannsland (Converted to Light Aircraft Carrier, renamed Kraken - 1943)
North Bartow (1941)
Beltain (1942)
Devons Island (1942)
Rhall (1943)
Sevia (1943)
Tega Cay (1944)
3 further planned cruisers were reassigned and converted as CVL prior to naming


GRAYSON ISLANDS CLASS
Grayson Islands (1941)
Tyr Gwyrdd (1941)
South Bartow (1942)
Penneforthe (1942)
Marilina (1943)
Vaughn (1943)
Louth (1944)
Severn (1944)


GENERAL CHARACTERISTICS:
Displacement: 10,636 full load
Length: 605’ / 184.4 m
Beam: 66’ / 20.1 m
Draught: 23’ / 7 m
Propulsion: Steam Turbines; 4 Boilers; 4 shafts
Speed: 33 knots
Range: 11,000 NM @ 15 knots
Complement: 1260

AVIATION FACILITIES:
2 x Catapult
2 x Mallard Seaplane

ARMAMENT:
Windward Islands Class
12 x 6” (4 x 3)
12 x 4.7” (12 x 1)
28 x 2pdr (3 x 8; 4 x 1)

Newydd Arwr Class
12 x 6” (4 x 3)
12 x 4.7" (6 x 2)
28 x 40mm (7 x 4)
28 x 20mm (14 x 2)

Grayson Islands Class
20 x 5.25” DP (10 x 2)
28 x 40mm (7 x 4)
28 x 20mm (14 x 2)


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_________________
"Anybody remotely interesting is mad in some way." - The Seventh Doctor