CB-90 Class Swedish Fast Assault Craft
CB-90
Fast Assault Craft
Other
Basic Information
Name
CB-90 Class Swedish Fast Assault Craft
Designation
CB-90
Alternate Designation
CB-90; Combat Boat 90
Equipment Type
Fast Assault Craft
Manufacturer
Dockstavarvet
Date of Introduction
1991
Description
Combat Boat 90 (CB-90) can carry and deploy a half platoon of amphibious infantry (18 men) fully equipped) is a class of fast military assault craft originally developed for the Swedish Navy by Dockstavarvet. In addition to the many variants in service with the Swedish Navy under the "Stridsbåt 90H" designation, the CB 90 has been adopted by the navies of several countries, including Norway (as the S90N), Greece, Mexico (as the CB 90 HMN), the United States (as the Riverine Command Boat) and Malaysia. Additionally, the German Navy plans to equip the Berlin-class replenishment ships with the CB90. The CB90 is an exceptionally fast and agile boat that can execute extremely sharp turns at high speed, decelerate from top speed to a full stop in 2.5 boat lengths, and adjust both its pitch and roll angle while underway. Its lightweight, shallow draught, and twin water jets allow it to operate at speeds of up to 40 knots (74 km/h) in shallow coastal waters. The water jets are partially ducted, which, along with underwater control surfaces similar to a submarine's diving planes, gives the CB90 its maneuverability.
Naval & Littoral Specifications
Crew
3
Beam
3.80 m
Range
240.0 nm
Engine Power
625 hp
Variants
The Strb 90 L
The Strb 90 L is outfitted for battalion-level command and control, with computer and communications equipment and an auxiliary generator to provide electrical power when the engines are not running. The L stands for ledning (command or leadership).
The Strb 90 KompL
The Strb 90 KompL is a plain Strb 90 H in which portable computer and communications equipment has been installed, allowing it to temporarily provide company-level command and control. Electrical power is provided by a rather loud portable generator installed on deck.
The Strb 90 HS
is designed for overseas peace-keeping and rescue operations. It is modified to keep its crew comfortable in Mediterranean conditions, with air conditioning, an auxiliary generator, ahead, and more comfortable crew stations. More importantly, it is armored, and its engines have been upgraded to compensate for the added weight.
Strb 90 H
At least one Strb 90 H, pennant number 802, is equipped with a decompression chamber.
SB90N
The Royal Norwegian Navy operates 20 CB90s under the designation SB90N; the N simply stands for Norsk utgave (Norwegian version). The S90N differs from the Strb 90 H in a few areas:
*It is armed with only one 12.7 mm machine gun, instead of three.
*The anchor winch is motorized, and the anchor is mounted at the stern, allowing a grounded S90N to tow itself afloat rather than risk damage to its impellers.
It carries an auxiliary generator that provides electrical power to navigation and communications systems even when the engines are not running.
The "Troops transportation room" has a higher deck height, making it possible for most people to stand without crouching.
It has two water-tight compartments in the bow, having an extra room for toilet and stores.
It has much more sophisticated navigation equipment based on GPS technology delivered by Kongsberg Seatex AS.
System
Alternative Designation
CB-90; Combat Boat 90
Type
Fast Assault Craft
Builders
Dockstavarvet, Gotlandsvarvet
Total Built
+300 Total Built
Greece
Hellenic Coast Guard: 3
Malaysia
Malaysian Navy: 5 unit CB90, 12 unit CB90HEX
Mexico
Mexican Navy: 48
Norway
Royal Norwegian Navy: 20
Sweden
Royal Swedish Navy: 147 in service, 18 on order
United Kingdom
Royal Navy: 4, formerly leased from the Royal Swedish Navy, used to evaluate the option of potential acquisition and returned to the Swedish Navy.
United States
US Navy: 6, known as 'Riverine Command Boat'
Crew
3 (two officers and one engineer)
Passengers
Up to 21 amphibious troops with full equipment
Dimensions
Length, Overall
15.9 m
Beam
3.8 m
Draught
0.8 m
Displacement, Empty
13,000 kg
Displacement, Standard
15,300 kg
Displacement, Fully Loaded
20,500 kg
Automotive
Engine Name
2 × Scania DSI14
Engine Type
V8 Diesel
Engine Power
625 bhp
Speed
40 knots (74 km/h)
Range
240 nmi (440 km) at 20 knots (37 km/h)
Armament
Note
The CB-90 can also carry up to 2.8 tons of mines or a Hellfire-based RBS-17 surface-to-surface missile system.
Weapon Station #1
Name
3 x M2HB Heavy Machine Gun
Type
Heavy Machine Gun
Quantity
3 x M2HB Heavy Machine Gun
Length
1,654 mm
Barrel Length
1,143 mm
Weight
38 kg
Action
Short recoil-operated
Rate of Fire
450–600 rounds/min
Muzzle Velocity
890 m/s
Effective Fire
1,800 m
Maximum Firing Range
7,400 m
Feed System
Belt-fed (M2 or M9 links)
Ammunition, Weapon Station #1
Type
Rifle
Caliber
12.7 mm
Cartridge
2.7×99mm NATO
Basic Load
2,000 rounds
Weapon Station #2
Name
Mk 19 Grenade Launcher
Type
Grenade Launcher
Quantity
1 x Mk 19 Grenade Launcher
In Service
1968-Present
Manufacturer
Saco Defense Industries (now a division of General Dynamics Ordnance and Tactical Systems), Combined Service Forces, MKEK
Length
1,090 mm
Barrel Length
413 mm
Width
240.4 mm
Height
199 mm
Weight
35.2 kg (empty without accessories)
Action
Blowback (Advanced primer ignition)
Rate of Fire
360–390 rpm (cyclic); 40 rpm (sustained); 60 rpm (rapid)
Muzzle Velocity
230–240 m/s
Effective Firing Range
1,500 m
Maximum Firing Range
2,212 m
Feed System
32- or 48-grenade belt
Ammunition, Weapon Station #2
Type
Grenade
Caliber
40 mm
Cartridge
40×53 mm
Basic Load
INA
Protection
Hull Armor
The machinery compartment is protected by an insulated watertight bulkhead. The middle of the boat consists of a cabin with capacity for 20 troops and their equipment. The wheelhouse is protected against splinters and is located between the troop compartment and the bow ramp landing area.
Countermeasures
INA
EW
INA
Details
Country of Origin
Sweden
Category
Naval
Naval
Filter Label
C
Classification
Domain
Naval & Littoral
Equipment Status
Active
Dimensions
Length
15.9 m
Width
3.8 m
Height
—
Weight
13000 kg
Operators (7)
United States
Sweden
Estonia
Greece
Malaysia
Mexico
Norway
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