Ship Database
Tier X Submarine

Italy

Pietro Calvi

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...

Read full ship history

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.

Credits
28,000,000
Official profile image of Pietro Calvi

At a glance

The numbers that shape the ship

Hit points
18,800
Maximum speed
29.0 knots
Surface detection
5.9 km
Main battery range
10.5 km
Main battery reload
5.0 s

Combat envelope

Range and detection

Scale: 15 km

Every bar uses the same 15 km scale. Surface detection is a visibility threshold, not a weapon range.

  • Surface detection5.9 km
  • Main battery10.5 km
  • Torpedoes9 km
  • Sonar ping10 km

Damage comparison

Published maximum per hit

Ship-relative

Bars are normalized only against this ship's highest listed hit. They are not salvo damage, expected damage or DPM.

  • Torpedo · 533 mm 12,033
Handling, concealment and protectionOverview

Handling

Maximum speed
29.0 knots
Turning circle radius
460 m
Rudder shift time
6.7 s
Maneuverability API rating 51

Concealment

Surface detection
5.9 km
Air detection
2.1 km
Submarine detection
2.1 km
Concealment API rating 96

Survivability

Hit points
18,800
Torpedo damage reduction
0 %
Survivability API rating 34

Published armour thickness

Only positive values supplied by the API are shown.

Overall published range
6–19 mm
Weapons and payloadsArmament

Surface armament

Main battery

Artillery API rating 30
Maximum range
10.5 km
Reload time
5.0 s
Rate of fire
10.9 rounds/min
180° turn time
7.2 s
Maximum dispersion
51 m
Gun layout
Mount
120 mm/45 Model 1931 on a single mount
Mounts
2
Barrels each
1

Automatic armament

Secondary battery

Underwater armament

Torpedoes

Torpedoes API rating 30

533 mm

Maximum range
9.0 km
Maximum damage per hit
12,033
Reload time
77 s
Speed
60 knots
Detectability
1.4 km
Torpedo-tube layout
Mount
Torpedo Tubes: Bow Group
Mounts
4
Tubes each
1
Mount
Torpedo Tubes: Stern Group
Mounts
4
Tubes each
1
Submarine systemsClass system

Dive capacity

Maximum capacity
160.0
Consumption rate (API value)
1.0
Regeneration rate (API value)
1.5
Dive capacity API rating 17

Underwater handling

Maximum underwater speed
16 knots
Maximum dive/ascent speed
4.0 knots
Dive-plane shift time
18.2 s
Underwater maneuverability API rating 34

Sonar ping

Maximum range
10.0 km
Ping width (API value)
18
Ping velocity (API value)
550
Reload time (API value)
20.0
Single-sector duration (API value)
35
Double-sector duration (API value)
75
Sonar API rating 42
Modules, hull and progressionTechnical data

Default hull

Hull hit points
18,800
Main-battery barrels
2
Torpedo tubes
8

Engine

Published maximum speed
29.0 knots

Module research tree

Names, research prices and defaults are reported directly by the API.

Propulsion: 4,400 hp

Default
Type
Engine
Purchase
2,000,000 credits

533 mm Si 270

Default
Type
Torpedoes
Purchase
2,000,000 credits
Next modules
1

533 mm Si 270 M

Type
Torpedoes
Research
38,000 XP
Purchase
2,500,000 credits

Mk10 mod. 1

Default
Type
Sonar
Purchase
2,000,000 credits
Next modules
1

Mk10 mod. 2

Type
Sonar
Research
38,000 XP
Purchase
2,500,000 credits

120 mm/45 Model 1931 on a single mount

Default
Type
Artillery
Purchase
2,000,000 credits

Pietro Calvi

Default
Type
Hull
Purchase
3,000,000 credits

Compatible upgrades

Official modernization descriptions and listed purchase prices. Effects still depend on the slot and configuration used in game.

Propulsion Modification 1

Modernization

Reduces time to full speed

Credits
1,000,000

Torpedo Tubes Modification 1

Modernization

Credits
500,000

Damage Control System Modification 3

Modernization

Credits
250,000

Main Armaments Modification 1

Modernization

Credits
125,000

Torpedo Tubes Modification 2

Modernization

Credits
3,000,000

Aiming Systems Modification 1

Modernization

Credits
500,000

Damage Control System Modification 2

Modernization

Credits
1,000,000

Main Battery Modification 3

Modernization

Credits
3,000,000

Main Battery Modification 2

Modernization

Credits
500,000

Torpedo Tubes Modification 3

Modernization

Credits
2,000,000

Gun Fire Control System Modification 2

Modernization

Credits
3,000,000
Available module groups
10
Compatible upgrades
11
Upgrade slots
6
Published battle levels
10–11

Cross-nation comparison

Ships that fill a similar slot

Closest same-tier, same-class matches from other nations, ranked by published base statistics.

Europe

Orzeł

HP
16,400
Speed
32 kn
Guns
6 km
Torps
10 km
Open comparison

United Kingdom

Thrasher

HP
16,800
Speed
26 kn
Guns
6 km
Torps
11 km
Open comparison

U.S.S.R.

K-1

HP
19,000
Speed
37 kn
Guns
6 km
Torps
9 km
Open comparison
All published source fields 164 values

Advanced reference for this saved default configuration. Field names follow Wargaming's source. An em dash replaces the source's −1 placeholder; it is not a negative measurement. These records do not include every mechanic in the game. Read the coverage guide.

Published fieldValue
ship_id4179015408
ship_id_strPISS110
namePietro Calvi
typeSubmarine
nationitaly
tier10
is_premiumNo
is_specialNo
has_demo_profileNo
price_credit28000000
price_gold0
mod_slots6
default_profile.armour.casemate.max—
default_profile.armour.casemate.min—
default_profile.armour.citadel.max—
default_profile.armour.citadel.min—
default_profile.armour.deck.max—
default_profile.armour.deck.min—
default_profile.armour.extremities.max—
default_profile.armour.extremities.min—
default_profile.armour.flood_damage0
default_profile.armour.health18800
default_profile.armour.range.max19
default_profile.armour.range.min6
default_profile.armour.total34
default_profile.artillery.artillery_id4179603184
default_profile.artillery.artillery_id_strPIUA110
default_profile.artillery.distance10.5
default_profile.artillery.gun_rate10.9
default_profile.artillery.max_dispersion51
default_profile.artillery.rotation_time7.2
default_profile.artillery.shot_delay5.0
default_profile.artillery.slots.0.barrels1
default_profile.artillery.slots.0.guns2
default_profile.artillery.slots.0.name120 mm/45 Model 1931 on a single mount
default_profile.atbas.distance0.0
default_profile.battle_level_range_max11
default_profile.battle_level_range_min10
default_profile.concealment.detect_distance_by_plane2.1
default_profile.concealment.detect_distance_by_ship5.9
default_profile.concealment.detect_distance_by_submarine2.1
default_profile.concealment.total96
default_profile.engine.engine_id4179472112
default_profile.engine.engine_id_strPIUE110
default_profile.engine.max_speed29.0
default_profile.hull.anti_aircraft_barrels0
default_profile.hull.artillery_barrels2
default_profile.hull.atba_barrels0
default_profile.hull.health18800
default_profile.hull.hull_id4179373808
default_profile.hull.hull_id_strPIUH110
default_profile.hull.range.max19
default_profile.hull.range.min6
default_profile.hull.torpedoes_barrels8
default_profile.mobility.max_speed29.0
default_profile.mobility.rudder_time6.7
default_profile.mobility.total51
default_profile.mobility.turning_radius460
default_profile.submarine_battery.consumption_rate1.0
default_profile.submarine_battery.max_capacity160.0
default_profile.submarine_battery.regen_rate1.5
default_profile.submarine_battery.total17
default_profile.submarine_mobility.buoyancy_rudder_time18.2
default_profile.submarine_mobility.max_buoyancy_speed4.0
default_profile.submarine_mobility.max_speed_under_water16
default_profile.submarine_mobility.total34
default_profile.submarine_sonar.submarine_sonar_id4179078896
default_profile.submarine_sonar.submarine_sonar_id_strPIUQ110
default_profile.submarine_sonar.total42
default_profile.submarine_sonar.wave_duration_035
default_profile.submarine_sonar.wave_duration_175
default_profile.submarine_sonar.wave_max_dist10.0
default_profile.submarine_sonar.wave_shot_delay20.0
default_profile.submarine_sonar.wave_speed_max550
default_profile.submarine_sonar.wave_width18
default_profile.torpedoes.distance9.0
default_profile.torpedoes.max_damage12033
default_profile.torpedoes.reload_time77
default_profile.torpedoes.slots.0.barrels1
default_profile.torpedoes.slots.0.caliber533
default_profile.torpedoes.slots.0.guns4
default_profile.torpedoes.slots.0.nameTorpedo Tubes: Bow Group
default_profile.torpedoes.slots.1.barrels1
default_profile.torpedoes.slots.1.caliber533
default_profile.torpedoes.slots.1.guns4
default_profile.torpedoes.slots.1.nameTorpedo Tubes: Stern Group
default_profile.torpedoes.torpedo_name533 mm
default_profile.torpedoes.torpedo_speed60
default_profile.torpedoes.torpedoes_id4178980592
default_profile.torpedoes.torpedoes_id_strPIUT110
default_profile.torpedoes.visibility_dist1.4
default_profile.weaponry.aircraft0
default_profile.weaponry.anti_aircraft0
default_profile.weaponry.artillery30
default_profile.weaponry.torpedoes30
modules.artillery[0]4179603184
modules.engine[0]4179472112
modules.hull[0]4179373808
modules.sonar[0]4179078896
modules.sonar[1]4178030320
modules.torpedoes[0]4178980592
modules.torpedoes[1]4177932016
modules_tree.4177932016.is_defaultNo
modules_tree.4177932016.module_id4177932016
modules_tree.4177932016.module_id_strPIUT111
modules_tree.4177932016.name533 mm Si 270 M
modules_tree.4177932016.price_credit2500000
modules_tree.4177932016.price_xp38000
modules_tree.4177932016.typeTorpedoes
modules_tree.4178030320.is_defaultNo
modules_tree.4178030320.module_id4178030320
modules_tree.4178030320.module_id_strPIUQ111
modules_tree.4178030320.nameMk10 mod. 2
modules_tree.4178030320.price_credit2500000
modules_tree.4178030320.price_xp38000
modules_tree.4178030320.typeSonar
modules_tree.4178980592.is_defaultYes
modules_tree.4178980592.module_id4178980592
modules_tree.4178980592.module_id_strPIUT110
modules_tree.4178980592.name533 mm Si 270
modules_tree.4178980592.next_modules[0]4177932016
modules_tree.4178980592.price_credit2000000
modules_tree.4178980592.price_xp0
modules_tree.4178980592.typeTorpedoes
modules_tree.4179078896.is_defaultYes
modules_tree.4179078896.module_id4179078896
modules_tree.4179078896.module_id_strPIUQ110
modules_tree.4179078896.nameMk10 mod. 1
modules_tree.4179078896.next_modules[0]4178030320
modules_tree.4179078896.price_credit2000000
modules_tree.4179078896.price_xp0
modules_tree.4179078896.typeSonar
modules_tree.4179373808.is_defaultYes
modules_tree.4179373808.module_id4179373808
modules_tree.4179373808.module_id_strPIUH110
modules_tree.4179373808.namePietro Calvi
modules_tree.4179373808.price_credit3000000
modules_tree.4179373808.price_xp0
modules_tree.4179373808.typeHull
modules_tree.4179472112.is_defaultYes
modules_tree.4179472112.module_id4179472112
modules_tree.4179472112.module_id_strPIUE110
modules_tree.4179472112.namePropulsion: 4,400 hp
modules_tree.4179472112.price_credit2000000
modules_tree.4179472112.price_xp0
modules_tree.4179472112.typeEngine
modules_tree.4179603184.is_defaultYes
modules_tree.4179603184.module_id4179603184
modules_tree.4179603184.module_id_strPIUA110
modules_tree.4179603184.name120 mm/45 Model 1931 on a single mount
modules_tree.4179603184.price_credit2000000
modules_tree.4179603184.price_xp0
modules_tree.4179603184.typeArtillery
upgrades[0]4268937136
upgrades[1]4220702640
upgrades[2]4189245360
upgrades[3]4262645680
upgrades[4]4279422896
upgrades[5]4259499952
upgrades[6]4269985712
upgrades[7]4280471472
upgrades[8]4287811504
upgrades[9]4188196784
upgrades[10]4278374320

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