USS Des Moines

USS Des Moines

PT-6

USS Des Moines

PT-6

USA

V Rank

Battle rating:

AB	RB	SB
6.3	6.3	6.3

Class:

PREMIUM

Heavy cruiser

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Description

The Des Moines-class, USS Des Moines (CA-134), 1948 is the lead ship of her class of three heavy cruisers, laid down in late May 1945 shortly before the end of World War 2. Derived from the earlier Baltimore-class heavy cruisers, she was the first ship in the US Navy to utilize autoloading 8-inch guns. She would not see combat, only being commissioned in 1948, with a short service life of only 13 years, being decommissioned in 1961. Notably, she did serve as the flagship of the Mediterranean fleet for 7 of those years, and as the control center for American armed forces in the Lebanon crisis of 1958.

Introduced in Update "Sky Guardians", USS Des Moines is in an earlier refit compared to her sister ship USS Newport News, and actually has a much stronger anti-aircraft battery: increased from two double 3-inch autocannon mounts on the Newport News, to a whopping 12 double mounts, plus an additional twelve double 20 mm mounts. This means that in addition to her impressive anti-ship capabilities with a 6-second reload for her main battery, she can also serve as a protective screen for battleships and less protected cruisers against air attack.

General info

Survivability and armour

Armourfront / side / back

Citadel122 / 147 / 86 mm

Main fire tower203 / 95 / 51 mm

Hull19 mm (steel)

Superstructure17 mm (steel)

Number of section8

Displacement20 950 t

Crew1 799 people

USS Des Moines, as the lead ship of the Des Moines class, has an armour layout which is based off the Baltimore class heavy cruisers. The main benefit for the main armour belt was to provide protection for the forward magazines, increasing the protection underneath the forward turrets from 0.75 inches to 5.8 inches of armour. The main armour belt is slightly thinner as the Baltimore class has a 6-inch belt, but the extra coverage which the extended belt provides is very welcome. The fore and aft of the citadel are protected by 4.8 inches of bulkhead armour, and thin 0.75-inch bulkheads interspersed throughout the citadel. The decks above the citadel are protected by 1-inch of anti-fragmentation armour just like the destroyers in the US tree. Lower in the ship is a 3.4-inch deck armour plate to deal with incoming fire from long ranges as well; this can deal with other cruisers and lower, however battlecruisers and battleships will easily penetrate this.

Des Moines has excellent armour on the turrets, with 8 inches of armour on the turret face, angled at 34 degrees to provide extra protection. This renders the turret face essentially impervious to any cruiser or destroyer fire, so long as it is facing towards the enemy. The turret sides, with only 3.75 inches of armour, can be penetrated by all cruiser calibre and many destroyer calibre guns at close range. The roof is better protected to defeat plunging fire, with 4 inches of armour. The barbettes have less armour, with 6.1 inches of protection. These will be knocked out regularly by other heavy cruisers and every battleship. These lead into the magazines, and the second turret magazine in particular. It is placed in an exposed position above the waterline unlike the Baltimores, so every precaution should be taken to avoid taking fire to this section. When fighting the Des Moines, this is the recommended area to hit.

Similar to other American cruisers, she lacks torpedo bulges, instead relying on fuel tanks along the hull. These cover the entirety of the hull between the turrets, and can absorb some smaller torpedoes, though most will easily punch through. Captains should watch out for torpedo attacks at all times. If taking a hit is inevitable, manoeuvre the ship so that it takes the hit as close to the front of bow as possible, as the bow is mostly empty space and Des Moines can survive a hit here with just some flooding. Any hits below the turrets, especially the second, should be avoided at all costs.

Mobility

Speedforward / back

AB71 / 29 km/h

RB61 / 25 km/h

Possessing a flank speed of 33 kn, USS Des Moines has the same top speed as other American heavy cruisers such as the USS New Orleans or the Baltimore-class, and slightly faster than the Brooklyn class. This speed allows Des Moines to make it to capture zones and other key locations at a reasonable pace, though not quite as some other cruisers such as Voroshilov. This speed drops to 23 kn in a turn, which although leaving her as an easier target, is still faster than any of the American battleships' flank speeds.

The rudder takes roughly 2 seconds to cause the ship to begin a turn, and while USS Des Moinse is responsive, at essentially 21 tons displacement there is a limit to just how quickly she can turn. Des Moines is agile for a heavy cruiser, but captains will need to be wary when traversing narrow passages as she is unable to make many of the turns that a destroyer or light cruiser could make.

Mobility Characteristics
Game Mode	Upgrade Status	Maximum Speed (km/h)		Turn Time (s)	Turn Radius (m)
		Forward	Reverse
AB	Stock	___	___
	Upgraded	71	29
RB/SB	Stock	___	___
	Upgraded	61	25

Modifications and economy

Repair cost

AB5 645

RB6 105

Crew training10 000

Experts800 000

Aces1 500

Research Aces1 380 000

Reward for battleAB / RB / SB

2 × 450 / 600 / 50 %

2 × 196 / 196 / 196 %

Modifications

Seakeeping	Unsinkability	Firepower
Dry-Docking Rudder Replacement Propeller Replacement Engine Maintenance	Damage Control Division Fire Division Smokescreen Shrapnel Protection Ventilation New Pumps Ammo Wetting	Anti-Air Armament Targeting 203mm_us_mk21_navy_ap_ammo_pack Auxiliary Armament Targeting 203mm_us_mk25_navy_hc_ammo_pack 127mm_usa_mk46_special_common_sap_ammo_pack Primary Armament Targeting Improved Rangefinder 127mm_usa_mk31_aavt_radio_fuse_ammo_pack 203mm_us_mk17_navy_special_common_ammo_pack

Armament

Primary armament

3 х Turret3 x 8 inch/55 Mark 16 cannon

Ammunition450 rounds

Vertical guidance-10° / 41°

The primary armament of 3 x 8 inch/55 Mark 16 triple-gun mount cannons are the currently the undisputed best heavy cruiser cannons. Able to fire a volley every 6 seconds (10 rpm) allows for all vessels, cruisers or smaller to be destroyed with relative ease. Like most American cannons, the shell velocity is quite low, making very large shell arches, allowing for ships to be struck whilst still behind island cover. This does however making long range shooting a significant challenge.'

The Des Moines has 4 rounds types, a HE round, two SAP round types and a AP round. The explosive mass of all rounds are extremely powerful for their type. The AP round is able to successfully fight all heavy cruisers as well as some battlecruisers such as the HMS Glorious, SMS Von der Tan, HMS Invincible to name a few.

Penetration statistics
Ammunition	Type of warhead	Penetration @ 0° Angle of Attack (mm)
		1,000 m	2,500 m	5,000 m	7,500 m	10,000 m	15,000 m
Mk.14 Common	Common	110	98	80	66	56	43
Mk.21 APCBC	APCBC	390	348	289	243	207	165
Mk.25 HC	HE	61	61	61	61	61	61
Mk.17 SP Common	SP Common	131	116	95	79	66	50

Shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (s)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (kg)	Ricochet
							0%	50%	100%
Mk.14 Common	Common	823	117.9	0.035	9	4.84	47°	60°	65°
Mk.21 APCBC	APCBC	762	151.9	0.035	9	2.21	48°	63°	71°
Mk.25 HC	HE	823	117.9	0	0.1	9.49	79°	80°	81°
Mk.17 SP Common	SP Common	823	117.9	0.035	9	4.61	48°	63°	71°

Secondary armament

6 х Turret2 x 5 inch/38 Mk.12 cannon, mount Mk.32

Ammunition720 rounds

The secondary armament are 6 x 5 inch/38 Mk/12 twin-mounted, dual-purpose cannons, with a max of 4 turret being able to fire during a broadside. The max fire rate is 15-22 rpm (depends on if the first stage ammunition is not depleted). There cannons have terrible muzzle velocity making distant shots against maneuvering targets a major challenge. Fortunately, when fighting light cruisers and destroyers, these secondaries are able to cause significant damage using HE and SAP rounds. These turrets also have access to proximity fuse shells, providing superb long to medium range defense against aircraft, including high altitude bombers.

Penetration statistics
Ammunition	Type of warhead	Penetration @ 0° Angle of Attack (mm)
		1,000 m	2,500 m	5,000 m	7,500 m	10,000 m	15,000 m
AAC Mk.34	HE	36	36	36	36	36	36
AAVT Mk.31	HE-VT	36	36	36	36	36	36
SP Common Mk.46	SP Common	150	125	93	71	56	45

Shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (s)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (g)	Ricochet
							0%	50%	100%
AAC Mk.34	HE	792	25	0	0.1	3,220	79°	80°	81°
SP Common Mk.46	SP Common	792	25	0.01	6	906.5	48°	63°	71°

Proximity-fused shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (s)	Fuse sensitivity (mm)	Arming distance (m)	Trigger radius (m)	Explosive mass (TNT equivalent) (g)	Ricochet
									0%	50%	100%
AAVT Mk.31	HE-VT	792	25	0	0.1	457	23	3,220	79°	80°	81°

Anti-aircraft armament

12 х Turret2 x 3 inch/50 Mk.33 cannon

Ammunition3000 rounds

Belt capacity150 rounds

Fire rate50 shots/min

12 х Turret2 x 20 mm/70 Oerlikon Mark V autocannon

Ammunition3600 rounds

Belt capacity60 rounds

Fire rate450 shots/min

An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control Select anti-aircraft weapons. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.

Usage in battles

Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).

Pros and cons

Pros:

• Adequate speed, on par with the rest of the American ships of this level
• Decent main firepower with an excellent fire rate of 10 rounds per minute
• Has access to a tracking radar
• Powerful auxiliary and AA defense with decent range and effective against both aircraft and light naval targets
• Large crew complement allows for a decent survivability
• Decent ammo variety for both the 8-inch and 5-inch guns including HE-VT, HE and AP type rounds
• Overall armour is above average for a cruiser

Cons:

• Large and long vessel, quite easy to hit especially with torpedoes
• No torpedo protection
• Doesn't have access to a scout plane
• Front ammorack is easy oneshot for even 8-inch AP shells from cruisers.

History

Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: https://wiki.warthunder.com/(Ship-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref></ref>, as well as adding them at the end of the article with <references />. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under === In-game description ===, also if applicable).

Media

Skins

• Skins and camouflages for the USS Des Moines from live.warthunder.com.

See also

Related development

• USS Newport News

External links

• [Devblog] Pre-order: USS CA-134 Des Moines 1948 heavy cruiser

Bethlehem Steel Corporation
Gun Destroyers (DD)
Porter-class	USS Phelps · USS Moffett
Fletcher-class	USS Cowell
Destroyer Leaders (DL)
Mitscher-class	USS Wilkinson
Cruiser, Light (CL)
Omaha-class	USS Raleigh · USS Detroit
Heavy Cruisers (CA)
Northampton-class	USS Northampton
Portland-class	USS Portland
Baltimore-class	USS Baltimore · USS Pittsburgh
Des Moines-class	USS Des Moines

USA heavy cruisers
Pensacola-class	USS Pensacola
Northampton-class	USS Northampton
Portland-class	USS Portland
New Orleans-class	USS New Orleans
Baltimore-class	USS Baltimore · USS Pittsburgh
Des Moines-class	USS Des Moines · USS Newport News