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BACKGROUND

The Iowa class battleships are the last battleships to see service with any country. They were originally designed in 1936 to counter a threat of larger Japanese Battleships. Construction began on the Iowa and her sister ships in 1940. The Iowa was launched three years later followed by the New Jersey, the Missouri, and the Wisconsin. They 16 inch guns were highly effective in bombarding shore based targets. The fast speed of the ships also allowed them to also serve as escorts for carrier groups.


The ships served through the remainder of WWII and through the Korean War before being placed in mothballs. They remained in mothballs until the 1980's when they were modernized and recommisioned. The Iowa was placed back into mothballs in 1990. Her sister ships soon followed but not before serving in the Gulf War. The Missouri was converted into a museum ship and placed on permanent display at Pearl Harbor in 1992. The New Jersey and the Wisconsin joined the Iowa in the mothball fleet. They probably would have been scrapped had it not been for the "Section 1011 of the National Defense Authorization Act for Fiscal Year 1996" which required the Navy to maintain atleast two of the battleships until the navy could provide the Marines with fire support that equalled or exceeded that of the Iowa class ships. The Navy projected that their gun and missile systems achieve that capability between 2003 and 2008.

RPG STATS

Government: United States of America (US Navy)

Ship Type: Battleship

Class: Iowa

Manufacturer: New York Navy Yard (Iowa & Missouri) Philadelphia Navy Yard (New Jersey & Wisconsin)

Crew: 1512

Notable Ships of Class:

USS Iowa

USS New Jersey

USS Missouri

USS Wisconsin


MDC BY LOCATION:


(1) Main Body 4800
(2) Command Tower 800
Superstructure 1000
(2) Sensor Array (behind command tower) 180
(3) Helicopter Landing Deck 800
(4) Propellors (4) 300 each

 

MK 28 5 Inch Guns (6) 300 each
Mark 7 406 mm (16 inch) Gun Turrents (3) 600 each
406mm Gun Barrels (9) 250 each
MK 15 MOD 2 Vulcan CIWS (4) 150 each
Mk141 Harpoon Quad Launchers (4) 170 each
MK 143 ABL Tomahawk Launchers (8) 100 each

 

Outer Hull (per 40ft area) 200
Interior walls (per 20ft) 40


NOTES:

(1) Depleting the MDC of the main body will put the battleship out of commission. All internal systems will shut down, the ship itself will be an unsalvageable sinking wreck.
(2) Destroying the command tower will instantly kill the command staff and deprive the ship of all forms of long range communications, radar and targeting. Destroying the main sensory array behind the command tower will have the same effect, but the command staff will not be killed instantly.
(3) Destroying the flight deck will greatly impair the battleships ability to deploy and recover Helicopter.
(4) Depleting the MDC of the propellors will leave the ship adrift until such time as they are repaired or the ship is towed back to port.

SPEEDS:

Speed: 33 knots
Maximum Range: 20,150 nautical miles at 15 kts

STATISTICAL DATA:

LENGTH:
861 ft
WIDTH:
108 ft
WEIGHT:
Mass: 46,177 tons
ENGINES:
8 Babcock & Wilcox Oil fuel Boilers (212,000 Shaft Horsepower)

RADAR SYSTEMS:
AN/SPS-49
AN/SPS-67 Surface Search Radar
MK 38 Main Gun Fire Control
MK 37 Secondary Gunfire Control



WEAPON SYSTEMS:

  1. MK28 5 INCH (54 CAL.)GUN MOUNTS (6): This twin barrelled 127mm gun is accurate against fast, surface targets, some air targets and shore bombardment threats. A left over from WWII it is one of the battleship's oldest weapons. Three of each of these turrents in mounted on each side. The others were removed to accomodate the Tomahawk missiles.

    • PRIMARY PURPOSE: Anti-Ship/Surface targets
    • SECONDARY PURPOSE: Anti-Aircraft
    • RANGE: 14.9 miles Versus Surface targets / 5 miles Versus Airborne targets
    • DAMAGE: 3D8 x 10 M.D. each barrel
    • RATE OF FIRE: 10 rounds per melee
    • PAYLOAD: 500 round magazine stored below.
    • NOTE: Several other types of ammo can be selected: Chaff, illuminating, and practice rounds

  2. MK 143 ARMOURED BOX LAUNCHING SYSTEM (8): The primary missile weapon of the battleship are the 8 ABL Tomahawks situated on the aft of the superstructure where several 5 inch gun turrents were removed. Each launcher carries 4 missile each and are lightly armoured.

    • PRIMARY PURPOSE: Anti-Ship
    • SECONDARY PURPOSE: Land attack
    • MISSILE TYPE: BGM-109C Tomahawk Cruise Missile
    • RANGE: 1,000 miles (1,600 Km)
    • SPEED: 550 mph
    • DAMAGE: 4D6x100
    • BLAST RADIUS: 200ft
    • RATE OF FIRE: Volleys of 1-2 missiles each launcher.
    • PAYLOAD: 4 missiles each for 32 missiles total

  3. MK 15 BLOCK 1 20MM VULCAN PHALANX (CIWS) (4): The Primary Close in defensive weapon of the battleships are the primary defence against inner range aircraft and missiles. These guns are almost totally automated and are very effective against low flying aircraft/missiles. Two defend each side of ship. Generally the battleship depends on escort for air/sub defence.

    • PRIMARY PURPOSE: Anti-Missile
    • SECONDARY PURPOSE: Anti-Aircraft
    • RANGE: 1 mile (1.6 Km)
    • DAMAGE: 5D6 MD per 60 rd burst, and 1D6 x10 for 100rd burst
    • RATE OF FIRE: 5 bursts per round
    • PAYLOAD: 1550 rounds
    • BONUSES: +4 to strike

  4. MK 141 HARPOON MISSILE LAUNCHERS (16): These are the principle Anti-Ship Missile Batteries aboard ship and are carried in two launchers, (featuring 4 tubes each,). They are designed to protect the battleship and the rest of the Fleet that it is attached to by taking out enemy ships at long range before they can get to close to pose a higher threat.

    • PRIMARY PURPOSE: Anti-Warship
    • MISSILE TYPE: Self-guided missiles
    • RANGE: 92 miles
    • SPEED: Mach 0.9
    • DAMAGE: 2D4 x 100
    • BLAST RADIUS: 150 ft
    • RATE OF FIRE: Volleys of 1, 2, 3, 4, 8
    • PAYLOAD: 1 missile per tube. 16 missiles total

  5. MK 7 406 MM MAIN GUN BATTERY (9): The main armament of the battleship is it's guns. These monsterous 16 inch guns are capable of obliterating most anything it hits in today's navies barring carriers. They have been used for shore bombardment only since the Korean War and haven't fired against a ship since WWII.

    • PRIMARY PURPOSE: Anti-Surface
    • SECONDARY PURPOSE: Assault/Shore Bombardment
    • RANGE: 14.9 miles Versus Surface targets / 5 miles Versus Airborne targets
    • DAMAGE: 1D6x100 M.D.
    • BLAST RADIUS: 150 feet.
    • BONUSES: + 2 to strike With Pioneer Aloft above target area. (The ROV Pioneer craft aid in targeting of these guns on shore bombardment)
    • RATE OF FIRE: 1 per gun every other round. Volleys of 1 to 9 per volley.
    • PAYLOAD: 16-inch Projectiles : Turret I (387,) Turret II (456,) Turret III (367,) Total: 1,210

  6. AN/SLQ-32 (V) 3 ELECTRONIC WARFARE SUITE: Used to defeat hostile radar and Sonar, the ECM/ESM, (Electronic Counter Measures,) jammers

    will confuse all radar and sonar so that the ships is much harder to be detected or locked onto with radar/sonar guided weapons. This does not give
    away the position of the ship but it does let the enemy know that they are there. The only way that it can be defeated is with ECCM, (Electronic
    Counter-Counter Measures.)

    • PRIMARY PURPOSE: Block Enemy Radar/Sonar
    • RANGE: 30 miles (48 Km)
    • RULES: Confuses all radar/sonar within 30 miles, but can be defeated by ECCM, if the ECCM operator gets a higher Sensory Instruments percentage roll against the ECM operator.

  7. MK 36 SUPER RAPID-BLOOMING OFF BOARD CHAFF/ FLARE DECOY DISPENSORS (6): The ships counter-measures dispensors consist of six six-barrelled 130mm Chaff/Flare launchers. Triggered by the Principal Weapons Officer, (PWO,) they will release either a chaff cloud or single flare depending on what the PWO chooses. They are used to confuse enemy missiles attacking the ship. Smart missiles get a 20% bonus when rolling on the below chart.

    • 01-50 Missile/s detonated by Chaff/Flare
    • 51-75 Missile/s loses track of target and veers away in wrong direction, (may lock onto another target)
    • 76-00 No effect, missile is still on target

    • Payload: Three of each type (per launcher) Reloads are automatic with 3 reloads per launcher before a manual reload is required. Stores hold 10 full reloads of the system.


SYSTEMS OF NOTE:

  • LIFE SUPPORT SYSTEMS: The battleships have sufficient Food, water, fuel and amenities to support up to 1500 people for up to 6 months. In an emergency the battleship can support up to 3000 people at one time, though living conditions onboard will get extremely cramped at that point.
  • LONG-RANGE LASER/SATELLITE RELAY COMMUNICATIONS: The impressive communications array of the battleship can communicate with up to 500 craft simultaneously at ranges of up to 900 miles (1,440 km). This range can be boosted indefinitely by using satellites or other spacecraft as to relay communications.
  • LONG-RANGE RADAR: The radar array of the battleship is equally as impressive as the communication system, and can track and identify up to 500 craft simultaneously. The radar system has a 2,000 mile/3,200 km range.
  • DECOYS: SLQ-25A Nixie towed torpedo decoy.


AIRCRAFT

  • Pioneer RPVs: 1-3
  • Helicopter: 1 (1 Helicopter can be carried, but the aft gun can't fire with it onboard)


REFERENCES USED IN THIS DESIGN

  • "Doe's All The Worlds' Ships Guide: US Navy Iowa Class Battleship Entry"
  • Warships1.com