JKJ-90 Cheonja
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| JKJ-90 Cheonja SPH | |
|---|---|
 The JKJ-91 ammunition loading vehicle (left) and the JKJ-90 Cheonja SPH (right) | |
| Type | self-propelled howitzer |
| Place of origin |  Zhenia |
| Service history | |
| In service | 1994-present |
| Used by | Greater Eastern Union Defense Forces |
| Production history | |
| Designer | Signus Systems |
| Designed | 1988-1993 |
| Manufacturer | Signus Systems Land Division |
| Produced | 1990-present |
| No. built | 6,000+ |
| Variants | Z90A1, Z90A2, Z91 ALV |
| Specifications | |
| Weight | 48 metric tons |
| Length | 12.52 m (gun forward) 7.99 m (hull only) |
| Width | 3.61 m |
| Height | 3.12 m to turret roof |
| Crew | 5 (driver, gunner, commander, two loaders) 3(driver, gunner, commander) (Z90A1 and Z90A2) |
| Caliber | 155mm |
| Rate of fire | MRSI: 5 rounds in 15 seconds maximum: 6 rpm |
| Maximum firing range | 32 km (HE-RAP) 42 km (standard rounds) |
| Armor | welded steel plate |
Main armament | 155 mm L/52 howitzer |
Secondary armament | 12.7 mm 'Eagle's Eye' RWS machine gun |
| Engine | EDE-100W Diesel-Electric Engine 1,200 hp |
| Transmission | unknown |
| Suspension | tracked |
| Ground clearance | 40 cm |
Operational range | 520 km (internal fuel) |
| Speed | 65 km/h (road) |
The Signus Systems JKJ-90 Cheonja (Zhenian: 90형 천자 자주곡사포-중), internationally the ZH-90 Divine Warrior, is a Zhenian self-propelled howitzer developed by Signus Systems and produced by Signus Systems Land Division. Meant to ultimately replace the aging self-propelled Jinsan howitzers in service in the Greater Eastern Union Defense Forces. The Z91 ammunition loading vehicle (ALV) has been developed in tandem with the howitzer. Its newer variants, the Z90A1 and the Z90A2, are capable of a very high rate of fire, capable of five rounds of Multiple Rounds Simultaneous Impact (MRSI) in 15 seconds, although this has been achieved after the JKJ-90A1 has been developed.