SGB Grey Goose

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SGB Grey Goose
GarageImage SGB Grey Goose.jpg
SGB Grey Goose
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The SGB Grey Goose (S309) is a premium gift rank III British motor gun boat with a battle rating of 3.0 (AB/RB/SB). It was introduced during Update 1.97 "Viking Fury" as a reward for the "Space Race" event.

General info

Survivability and armour

Armourfront / side / back
Citadel0 / 19 / 0 mm
Hull6 mm (steel)
Superstructure4 mm (steel)
Number of section4
Displacement255 t
Crew34 people

The Grey Goose has a 6 mm thick steel hull and 4 mm thick steel superstructure, with barely any armour whatsoever. It has 12.7 mm antifragmentation armour on the front guns and 8 mm antifragmentation armour on the 76 mm gun on the back, this combined with the profile of the guns result in the armaments only getting hit and disabled rarely. It also has 19 mm thick antifragmentation armour located on both sides of the boat near the center, where the engine is located. This makes the engine protected against most low calibre weapons on its tier, and it can usually be only penetrated by higher calibre AP rounds. This armour however does not extend far enough to protect any of the ammo storages on the ship, and if the front is under heavy fire, it will often result in the detonation of the quite large ammunition storage. The ship crew consists of only 34 people, making it the second most common cause of destruction.


Speedforward / back
AB87 / 26 km/h
RB65 / 19 km/h

The ship has a maximum speed of 87 km/h in AB and 65 km/h in RB. Acceleration and deceleration is poor, but turning rate is excellent at high speeds compared to other ships of its size, comparable to PT boats, which it can mostly keep up with.

Displacement is 255 tons.

Modifications and economy

Repair cost
AB865 Sl icon.png
RB1 062 Sl icon.png
Crew training10 000 Sl icon.png
Experts180 000 Sl icon.png
Aces590 Ge icon.png
Research Aces710 000 Rp icon.png
Reward for battleAB / RB / SB
Talisman.png 2 × 90 / 140 / 50 % Sl icon.png
Talisman.png 2 × 148 / 148 / 148 % Rp icon.png
Seakeeping Unsinkability Firepower
Mods new ship hull.png
Mods new ship rudder.png
Rudder Replacement
Mods new ship screw.png
Propeller Replacement
Mods new ship engine.png
Engine Maintenance
Mods ship damage control crew.png
Damage Control Division
Mods ship fire control crew.png
Fire Division
Mods engine smoke screen system.png
Mods new ship pumps.png
New Pumps
Mods new aa caliber turrets.png
Anti-Air Armament Targeting
Mods ammo.png
Mods new aux caliber turrets.png
Auxiliary Armament Targeting
Mods ammo.png
Mods shrapnel tank.png
Mods new main caliber turrets.png
Primary Armament Targeting
Mods ship rangefinder.png
Improved Rangefinder
Mods ship art support.png
Artillery Support
Mods torpedo.png
Torpedo Mode
Mods naval mine.png


Primary armament

Turret40 mm 2pdr QF Mk.IIc automatic cannon
Ammunition2240 rounds
Belt capacity56 rounds
Fire rate200 shots/min
Vertical guidance-10° / 70°
Turret20 mm/70 Oerlikon Mk.II autocannon
Ammunition1800 rounds
Belt capacity60 rounds
Fire rate450 shots/min
Vertical guidance-5° / 50°

The main guns are located on the front of the ship, a 2pdr QF Mk.IIc (40 mm) automatic cannon and a 20 mm/70 Oerlikon Mk.II (20 mm) autocannon. Both have 56 ammo in a clip, but the 20 mm fires considerably faster, usually emptying multiple seconds before the 40 mm. This can prove to be useful, as you can sustain fire with at least one of the guns at all times. They have 2240 and 1800 maximum total ammunition respectively, providing a generous pool for long engagements. The turrets can rotate almost all the way to the back, but the 20 mm blocks the 40 mm from firing directly to the front, so the ship needs to be angled slightly off target if both guns need to be fired on it. They are fit for close to medium range engagements, but quickly fall off at long ranges.

All three belts contain the same AP-T (Armour-piercing tracer shell) and HEF (High-explosive fragmentation shell) ammunition, only in different ratios. This makes all belts viable, the selection should be only based on speculation of opponents or preferred targets, and eliminate the need to switch belt type mid-battle.

  • Universal: HEF · AP-T · HEF · AP-T
  • 40 mm HE: HEF · HEF · HEF · AP-T
  • 40 mm AP: AP-T · AP-T · AP-T · HEF

Penetration statistics
Ammunition Penetration @ 0° Angle of Attack (mm)
10 m 100 m 500 m 1,000 m 1,500 m 2,000 m
HEF 3 3 3 3 3 3
AP-T 60 57 48 39 32 26
Shell details
Ammunition Velocity
mass (kg)
Fuse delay
Fuse sensitivity
Explosive mass
(TNT equivalent) (g)
0% 50% 100%
HEF 701 0.82 0 0.1 71 79° 80° 81°
AP-T 701 0.91 - - - 47° 60° 65°

Secondary armament

Turret76 mm/45 QF 3in 20cwt cannon
Ammunition150 rounds

The ship is armed with a 76 mm/45 QF 3in 20cwt cannon, which has 150 total ammunition.

The HE shell should be used against other ships, but it only has 6 mm of penetration, so it is only effective against lightly-armoured targets. The shrapnel round is effective against small boats, and thanks to its unique quality, it can also be used as a crude variable time fused AA cannon. Due to the relatively low muzzle velocity and low calibre compared to proper flak cannons, it will usually only deter enemy aircraft, with actual kills with it being rare. If both sea and air targets are set to be engaged, this turret will prefer air targets, often suppressing them through the course of the match.

Penetration statistics
Ammunition Type of
Penetration @ 0° Angle of Attack (mm)
100 m 1,000 m 2,000 m 3,000 m 4,000 m 5,000 m
HE shell HE 6 6 6 6 6 6
Mk.I shrapnel Shrapnel* 5 5 5 5 5 5
Shell details
Ammunition Type of
mass (kg)
Fuse delay
Fuse sensitivity
Explosive mass
(TNT equivalent) (g)
0% 50% 100%
HE shell HE 762 7.26 0 0.1 320 79° 80° 81°
Mk.I shrapnel Shrapnel* 617 7.94 0 0.1 180 62° 69° 73°

Anti-aircraft armament

2 х Turret2 x 12.7 mm Vickers Mk.V machine gun
Ammunition4000 rounds
Belt capacity200 rounds
Fire rate600 shots/min

Two turrets outfitted each with two 12.7 mm Vickers Mk.V machine guns can be found on both sides of the boat, and they have 8,000 total rounds. They can aim to the sides of the ship, and all the way up, and thanks to the high rate of fire, typically kills smaller close flying aircraft and smaller PT-boats, but becoming ineffective at medium-long ranges.

Additional armament

Setup 12 x 533 mm Mk.VIII torpedo
Setup 24 x 1123/1323 lbs Type M Mark I moored contact mine
Setup 32 x 533 mm Mk.VIII torpedo
4 x 1123/1323 lbs Type M Mark I moored contact mine

The ship is outfitted with 2 x Mk.VIII (533 mm) torpedo launcher tubes, pointing forward, but angled away considerably. This angle matches the usual engagement angle. The destructive power combined with high mobility can be deadly against larger craft, which would resist the smaller armaments on the ship otherwise.

The ship can be equipped with 4 x Type M Mark I mines, 2 on each side, in the back. They are dropped individually, starting with the 2 on the left and then on the right. They can destroy almost any vessel on the same battle rating, mostly if deployed along high traffic, narrow routes, or near capture points.

Usage in battles

The Grey Goose is best played as a PT-boat hunter, but remains usable up to ships of the same size. The rapid-firing guns allow for quick adjustments, making it adaptable to quick range or speed changes of the target. The amount and type of armaments on the ship allow it to take up the position of an AA-ship for a while, if need be. It is best to avoid larger ships and long engagement ranges, as any hit from a larger calibre can destroy it, and the majority of the guns fall off at great distances.

Pros and cons


  • High speed
  • Manoeuvrability
  • Rapid-firing, accurate armaments
  • Option for a "primitive" flak cannon


  • Poor acceleration and deceleration
  • No armour around some components and ammunition
  • Short effective distance
  • Weapons not fit to fight larger ships


The SGB series was designed due to the need of a hybrid of a motor gun boat and a motor torpedo boat by the Royal Navy. They were the only Coastal Forces ships to be made of steel. The Royal Navy originally wanted 52 of them, but only ordered 9. The series was marked SGB 1 to 9. 2 of them were destroyed during production, and only 6 of them survived the war. SGB9 was used as a trial vessel until 1956 by Vospers. The Grey Goose was sold in 1957, and is currently in Hoo St Werburgh, used as a houseboat.



See also

Related development

External links

J. Samuel White
Torpedo/Gun Boats 
Steam Gun Boat (SGB)  SGB Grey Goose
Light Cruisers 
Abdiel-class  HMS Abdiel

Britain boats
Motor torpedo boats  Brave Borderer · Dark Aggressor · Dark Aggressor TD · Fairmile D (617) · Fairmile D (697) · Fairmile D (5001) · HMS Gay Archer
  MTB-1(1) · MTB-1(2) · MTB Vosper · MTB Vosper(2) · MTB-422
Motor gun boats  Dark Adventurer · Fairmile A (ML100) · Fairmile B (ML345) · Fairmile C (312) · Fairmile C (332) · Fairmile D (601) · Fairmile H LCS(L)(2)
  HMAS Arrow · MGB-61 · MGB-75 · ML 1383 · SGB Grey Fox · SGB Grey Goose
Gunboats  HMS Spey

Britain premium ships
Motor torpedo boats  MTB-1(2) · MTB-422 · Fairmile D (5001) · HMS Gay Archer
Motor gun boats  MGB-75 · SGB Grey Goose
Gunboats  HMS Spey
Sub-chasers  LÉ Orla
Frigates  HMS Whitby
Destroyers  HMS Montgomery · HMS Valhalla · HMS Verdun · ORP Garland · HMS Jervis · HMCS Haida · HMS Mohawk · HMS Cadiz · HMS Diamond
Light cruisers  HMS Belfast
Battleships  HMS Iron Duke