Cheng Kung-class frigate

ROCS Cheng Kung (1101) and ROCS Chi Kuang (1105)
Class overview
Name:	Cheng Kung class
Builders:	China Shipbuilding Corporation
Operators:	Republic of China Navy
In commission:	1993–Present
Completed:	8
Active:	8
General characteristics
Type:	Frigate
Displacement:	4,103 long tons (4,169 t) full load
Length:	453 ft (138 m)
Beam:	46.95 ft (14.31 m)
Propulsion:	2 × General Electric LM2500-30 gas turbines, 41,000 shp (31 MW); 2 × Auxiliary Propulsion Units, 350 hp (.25 MW)
Speed:	over 29 knots (54 km/h)
Complement:	235
Sensors and processing systems:	Radar: AN/SPS-49, AN/SPS-55, Mk 92 fire control system Sonar: SQS-56 hull-mounted sonar
Electronic warfare & decoys:	SLQ-32(V)2 Mark 36 SRBOC AN/SLQ-25 Nixie
Armament:	1 × Mk 13 Launcher for 40 RIM-66 Standard MR missiles 2 × triple Mark 32 torpedo tubes with Mark 46 anti-submarine torpedoes 1 × OTO Melara 76 mm/62 caliber naval gun 2 × Bofors 40mm/L70 guns (except Tian Dan (田單, PFG-1110)) 1 × 20 mm Phalanx CIWS point defense cannon 4 × Hsiung Feng II and 4 × Hsiung Feng III SSM On PFG-1101 and PFG-1105 only, others still have 8 HF-2 SSM until major refit/overhaul. Sky Bow air defense missiles may replace SM-1 missiles and Mk 13 launcher in due course
Aircraft carried:	2 × S-70C(M)-1/2

The Cheng Kung-class frigates are guided-missile frigates (PFG) currently in service of the Republic of China (Taiwan) Navy (ROCN). They are based upon the U.S. Oliver Hazard Perry class and built by China Shipbuilding Corporation in Kaohsiung, Taiwan under license throughout the 1990s as parts of the "Kuang Hua One" patrol frigate, guided project. These frigates served as the mainstay of the ROCN's theater air defense prior to the ROCN's acquisition of Keelung (Kidd)-class destroyers in 2005.

In order to control the new weapon systems on the frigates, which Mk 92 could not integrate at the time, a second CDS, H930 MCS was installed in order to control the 8 HF-2 (or four HF-2 and four HF-3 on certain ships) and the two Bofors 40mm/L70 guns. However, the Mk 92's Harpoon mode was deleted due to the US government refusal to sell the Harpoon missile system to Taiwan at the time. Also deleted were some of Mk 92's ASW modes, along with the refusal to sell SQR-19 Towed Array sonar system.

Originally only two lead ships were going to be built to this standard, the rest of the six ships in the class were going to be built under ACS (Advance Combat System) project with a lighter AEGIS (that later became SPY-1F), 48-64 cell Mark 41 Vertical Launch System and other systems, and a 15 metres (49 ft) plug-in section. Delay in the design and budget changed the project to four ships in PFG-1101 configuration and the last four ships in ACS configuration, then more delays changed to 6+2, then 7+1. By the mid 1990s, the ROCN decided the ACS project was too risky, too long and too over budget, finally canceling it after the seventh ship was built to the PFG-1101 standard. However, enough of the long lead items were already purchased so that in late 2000, the ROCN decided to go ahead with the eighth ship's construction with PFG-1101 configuration—minus the two Bofors 40mm/L70 guns, after getting necessary funding.