Ship:Pietro Calvi

X

28,000,000

Pietro Calvi — Italy Tech Tree Tier X Submarine.

Pietro Calvi was the lead ship of a class of comparatively large cruiser submarines that entered service in 1935 and 1936. She participated in the naval blockade during the Spanish Civil War. During World War II, she operated in the Atlantic from a base in German-occupied Bordeaux, France. Pietro Calvi conducted seven patrols and sank six cargo ships in total. In July 1942, while out on her eighth patrol, she was sunk by a British escort.

• Exhaust Smoke Generator consumable available
• Low torpedo detectability
• Long ping effect duration on a sector
• Main Battery Reload Booster consumable available

Cons

• Low torpedo speed
• Low dive capacity

Ship Stats

Hull Information

SURVIVABILITY
• Hit Points	18800
• Torpedo protection damage reduction (%)	0%

ARMOR DETAIL
• Belt (mm)	25
• Deck (mm)	16
• Superstructure (mm)	19
• Extremities (mm)	19

MANEUVERABILITY
• Maximum speed (kt)	29.0
• Turning circle radius (m)	460
• Rudder-shift time (sec)	8.8

CONCEALMENT
• Detectability by sea (km)	5.94
• Detectability by air (km)	2.13
• Detectability after firing main guns in smoke (km)	2.19
• Detectability by depths (km)	2.13

SUB STATS
• Concealment at periscope depth (km)	2.13
• Maximum submerged speed (kt)	16.0
• Diving plane shift time (sec)	23.7
• Maximum diving speed (m/s)	4.0
• Dive capacity	160
• Dive depletion rate	—
• Dive recharge rate	1.5

Main Battery

MAIN BATTERY
• Arrangement	2×1 120mm
• Firing range (km)	10.5
• Reload time (sec)	5.5
• Rate of fire (shots/min)	10.9
• 180° turn time (sec)	7.2

DISPERSION
• Dispersion type	Elbing dispersion
• Dispersion formula	Dispersion (m) = 3.5 × range(km) + 15
• Sigma	2.0
• Maximum dispersion (m)	51
• Dispersion at 5 km	32
• Dispersion at 10 km	50
• Dispersion at 10.5 km	52

SAP SHELL
• Name	120 mm proiettili CS 1926
• Maximum damage	2600
• Shell velocity (m/s)	730
• Shell weight (kg)	23.15
• Penetration (mm)	34.2
• Fuse time (sec)	0.03
• Ricochet start (°)	60
• Always ricochet (°)	75
• Normalisation (°)	45
• Arming threshold (mm)	25

Sonar

SONAR	Mk10 mod. 1 (STOCK)	Mk10 mod. 2 (UPGRADED)
• Sonar reload time (sec)	20	15
• Ping velocity (m/s)	550
• Ping width (m)	18
• Single ping duration (sec)	35.0
• Double ping duration (sec)	75.0
• Maximum ping range (km)	10.0

Torpedoes

SUBMARINE TORPEDOES	HOMING (STOCK)	HOMING (UPGRADED)	STANDARD (STOCK)	STANDARD (UPGRADED)
• Torpedo name	533 mm	533 mm	533 mm	533 mm
• Damage	12033	12033	19900	19900
• Range (km)	9.0	10.0	12.5	13.5
• Speed (kt)	60	65	50	54
• Detectability (km)	1.4	1.4	1.0	1.0
• Reload (s)	77	70	77	70
• Bow torpedo tubes	4
• Stern torpedo tubes	4
• Torpedo loaders (bow/stern)	4/4

Compatible Upgrades

Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6

Consumables

• Slot 1: Damage Control Party  (3 charges, 5.0s action, 60.0s cooldown)
• Slot 2: Submarine Surveillance  (60.0s action, 120.0s cooldown)
• Slot 3: Main Battery Reload Booster  (4 charges, 30.0s action, 100.0s cooldown)
• Slot 4: Exhaust Smoke Generator  (5 charges, 40.0s action, 80.0s cooldown)
• Slot 5: Repair Party  (2 charges, 40.0s action, 80.0s cooldown, 94 hp/s)

Gallery

WoWs Gallery

• 
  Pietro Calvi
• 
  Pietro Calvi in her default camo

Historical Gallery

Ship Change Log

• Update 15.4:
  • Main Battery parameters changed:
  • HE shells replaced with SAP with the following parameters:
    • Maximum damage - 2,600
    • Armor penetration capacity - 34mm
    • Initial velocity - 730 m/s
    • Shell ballistics changed. Arcs will now be flatter
    • Standard torpedo maximum damage increased: 10,800 to 12,033
    • Alternative torpedo maximum damage increased: 16,400 to 19,900
    • Combat Instructions bonus to torpedo tubes reload time increased: 15% to 20%