Grnd-75 Ship and Submarine Recognition

Perceptual Warship Classes

Aircraft Carrier

Surface Combatant

Merchant/Auxiliary

Small Craft

Aircraft Carrier Roles

Large Carrier CVN (N denotes nuclear)

Small Carrier CV

Surface Combatant Roles

Cruiser CG

Destroyer DD

Frigate FF

Landing Ships L

Merchant/Auxiliary Roles

Passenger

General Cargo

Tankers

Bulk Carriers

Container Ship

RO-RO

Fishing/hookers

Oiler replenishment - AOR

Oiler/Tanker, general helicopter - AOH

Oiler replenishment, helicopter - AORH

Oiler replenishment, helicopter, guided missile - AORHM

Intelligence gathering ship, guided missile - AGIM

Describing a hull

Length overall

Width overall

Hull shape: type of bow, type of stern, bow breaks

Describing superstructures

Size

Shape

Location

Uprights

Weapons

RADARs

Superstructure location

Central

Forward

Aft

Offset

Multiple

Superstructure uprights

An Upright is a structure rising vertically from the main deck of a ship with at least a 4:1 ratio of height to width.

Examples:

Masts

Funnels

Weapons

Gun turrets

Torpedoes

SAM & SSM Missiles

Close-in Weapons Systems (CIWS)

Depth charge throwers & Mortars

Chaff launchers

RADARs

Air Search / Early Warning

Surface Search / Navigation

Fire Control: gun directors, missile directors, self defence directors (CIWS)

Group 1 vessels

Superstructure greater than 1/3 of LoA

Group 2 vessels

Superstructure less than 1/3 of LoA and is located amidships

Group 3 vessels

Superstructure less than 1/3 of LoA and is located aft

Merchant/Auxiliary superstructure uprights

Cranes - C

Gantry - G

King Post - K

Mast - M

Submarine Roles

Patrol Submarines (SSK)

Attack Submarines (SSN)

Cruise Missile Submarines (SSG, SSGN)

Strategic Missile Submarines (SSB, SSBN)

Acronym for describing submarines

S - Sail

H - Hull

A - Armament

R - Rudder

D - Dive planes

Three hull types

Fair curve

Parallel

Irregular

Fair curve hull

Parallel hull

Irregular hull

Types of bows

Curved and Raked

Raked

Enclosed

Types of sterns

Transom

Cruiser stern

Cruiser stern (spoon)

Counter stern (cutaway)

Two main ways to describe superstructure form

Composite (one piece)

Split (two or more pieces)

Superstructure shapes

Triangular

Raked

Blocked

Other

Triangular superstructure

Raked superstructure

Blocked superstructure

Other superstructure

Hull forms

Types of merchant bows

Raked

Curved and raked

Maier

Ice breaker

Bulbous

Cylindrical

Types of merchant sterns

Cruiser

Spoon

Raked

Cut spoon

Tug stern

Uprights on a submarine sail

Communications Masts

Radar Antennae

Periscopes

ESM

Snorkels