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SSPH-1 Primus

155 mm self-propelled howitzer

SSPH-1 Primus SPH

The SSPH-1 Primus weights significantly less than contemporary artillery systems

 
 
Country of origin Singapore
Entered service 2004
Crew 4 men
Dimensions and weight
Weight 28.3 t
Length (gun forward) 10.21 m
Hull length 6.6 m
Width 3 m
Height 3.28 m
Armament
Main gun 155 mm howitzer
Barrel length 39 calibers
Machine guns 1 x 7.62 mm
Muzzle velocity ?
Projectile weight ?
Maximum firing range 30 km
Maximum rate of fire 6 rpm
Elevation range - 3 to + 85 degrees
Traverse range 360 degrees
Ammunition load
Main gun ?
Machine guns ?
Mobility
Engine Detroit Diesel 6V92TA
Engine power 550 hp
Maximum road speed 50 km/h
Range 350 km
Maneuverability
Gradient 60%
Side slope 30%
Vertical step ~ 0.8 m
Trench ~ 1.8 m
Fording ~ 1.2 m

 

   The SSPH-1 (Singapore Self-Propelled Howitzer 1) Primus (first) is based on the US M109 155 mm self-propelled howitzer, which is the most widely used system of its type in the world. The Primus was developed to meet operational requirements of the Singapore Armed Forces. Development began in 1996 and the first prototype was completed in 2000. The SSPH1 Primus is in service with the Singapore Armored Forces.

   The SSPH-1 weights less than 30 tons. It is significantly less than contemporary artillery systems, such as the M109A6 Paladin or AS90 Braveheart.

   The Primus is armed with a turret-mounted 155 mm/L39 howitzer, fitted with a semi-automatic loading system. A semi-automatic loading system enables operation with 4 men crew. The SSPH-1 is compatible with all standard NATO munitions. It fires HE, extended-range HE, smoke and illumination projectiles. An indigenous 155 mm cargo round can also be fired. The HE projectile has a maximum range of about 19 km and the extended range projectile of 30 km.

   The SSPH1 Primus has a maximum rate of fire of 6 rounds per minute. It can also make a burst of fire of three rounds in 20 seconds, which gives a shoot-and-scoot capability. It takes less than 60 seconds to prepare vehicle for firing and 40 seconds to leave firing position.

   Primus is fitted with a modern fire control system, which includes an on board positioning and navigation system. It can receive target information form command post or forward observers via datalink. It also offers high fire accuracy.

   It is claimed that armor of the Primus provides protection against 7.62 mm armor-piercing rounds and artillery shell fragments. Vehicle is fitted with an automatic fire suppression system.

   The SSPH-1 Primus is powered by the Detroit Diesel 6V92TA diesel engine, developing 550 horsepower. Chassis uses a number of automotive components from the Bionix IFV. It could be deployed by the future Airbus A400M transport aircraft.

 

 
SSPH-1 Primus SPH

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SSPH-1 Primus SPH

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SSPH-1 Primus SPH

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SSPH-1 Primus SPH

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