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K55 SPG


Self-Propelled Gun


The K55 is set to be replaced by the newer K9 Thunder self-propelled gun platform.
Authored By: Staff Writer | Last Edited: 10/8/2018
Prior to the arrival of the K9 "Thunder" Self-Propelled Gun (SPG), the South Korean Army relied on the K55 series of similar form and function. The K55 was a localized development of the US military's M109A2 Paladin SPG family, license-produced by Samsung Techwin / Samsung Aerospace Industries (SSA). Over 1,100 (1,180) of the type were procured by the South Korean government, supplying the Army with a long range, heavy hitter capable of lobbing conventional, chemical and nuclear shells at any potential enemies - namely North Korea. The K55 entered service in 1985.

The 25-ton K55 borrows much from the American M109 including its conventional design consisting of an armored tracked chassis and boxy turret superstructure. The vehicle is crewed by six personnel and primary armament is a 155mm main gun of 30 caliber length. Defense is through 1 x 12.7mm K6 heavy machine gun. Power is served through a Detroit Diesel 8V-71T turbocharged, diesel-fueled engine of 450 horsepower. Maximum road speed across ideal surfaces is 56 kmh. The main gun can supply a rate-of-fire of 4 shots per minute while targeting is through manual means. A full ammunition load aboard the K55 is 36 projectiles.

The K55 entered a modernization program in 1994, producing the K55A1 designation.

The newer 47-ton K9 Thunder formally entered service in 1999 and is crewed by five personnel, carried 48 projectiles and features a rate-of-fire of 6 shots per minute with manual or automatic targeting. Additionally, the powerplant provides road speeds of up to 66 kph.






Specifications



Year:
1985
Crew
6
Manufacturing
Samsung Techwin - South Korea
Production
1,180 Units
National flag of South Korea South Korea
- Fire Support / Assault / Breaching
Length:
29.86 ft (9.1 m)
Width/Span:
10.17 ft (3.1 m)
Height:
10.83 ft (3.3 m)
Weight:
31 tons (28,000 kg; 61,729 lb)
(Showcased structural values pertain to the K55 SPG production model)
1 x Detroit Diesel 8V71T diesel engine developing 450 horsepower.
(Showcased powerplant information pertains to the K55 SPG production model)
Maximum Speed:
35 mph (56 kph)
Maximum Range:
217 miles (350 km)
(Showcased performance values pertain to the K55 SPG production model; Compare this entry against any other in our database)
1 x 155mm main gun barrel
1 x 12.7mm K6 heavy machine gun

Ammunition:
36 x 155mm projectiles
550 x 12.7mm ammunition
(Showcased armament details pertain to the K55 SPG production model)
K55 - Base Series Designation based on the American M109A2 SPG.
K55A1 - Improved Modernized Production Model; appearing in 1994.

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