Oh one more 4000 ton contender, the Venator design from BMT in Great Britain. This has also been sold to Omani Navy as the Khareef class Heavy OPV (2600 tons). Again - like the Korean option, armament and sensors are Western Origin.
This is the Venator Frigate version
Here is the page at the vendor,
https://www.bmt.org/industries/defence-and-security/surface-systems/bmt-venator-110-frigate/
Before anyone jumps in here starting to criticize about the missile placement vs. the VLS, this documentation is from 2013 as designed then. I am sure they can make provisions for VLS changes as supplied by VLS vendors.
Venator-110 general-purpose light frigate is one of the three design variants of the Venator-110 platform developed by BMT Defence Services to fulfil a wide range of mission needs of naval and coastguard forces.
With its advanced weapon configurations, the Venator-110 light frigate performs maritime security, naval boarding, combat, close consort defence, and support missions to other naval units.
The warship was unveiled at the DSEI 2013 international defence and security exhibition held in London, UK, in September 2013. It was recently demonstrated to international customers at the Pacific 2017 maritime exhibition and conference held in Australia.
The frigate is being offered to the British Royal Navy’s Type 31e general-purpose frigate programme.
Venator-110 light frigate design and features
The Venator-110 general-purpose light frigate’s hull is designed to operate globally at different speeds in varying sea states and environmental conditions. The vessel has an overall length of 117m, draught of 4.3m, beam of 18m, and displacement of 4,000t.
It can accommodate up to 106 personnel, including 85 crew members, ten helicopter operation and maintenance workers, and 11 optional marine boarding teams. It can also hold 18 interim operations personnel.
The ship also carries four large rigid-hulled inflatable boats (RHIBs) to support a wide range of capabilities at sea.
A flight deck and hangar is provided at the stern for the operation of a medium-sized helicopter such as the NH90, SH-60 Seahawk, AW101 Merlin, AW159 Wildcat, and other future aviation platforms.
Weaponry onboard Venator-110 frigate
The multi-mission frigate’s modular design allows for the integration of various weapons and decoys based on mission requirements. The weapon options include 30mm or 40mm cannons, close-in weapon systems (CIWS), soft-kill decoys, lightweight surface-to-surface and surface-to-air
missiles, as well as a medium-caliber gun system.
The medium-caliber naval cannon mount located in the bow provides the frigate with anti-surface and anti-aircraft capabilities.
“The vessel offers a maximum speed of 25kt and is capable of travelling a distance of 6,000nm at 15kt.”
The vessel comes with different vertical-launch silo (VLS) options, including two or three units of three-cell Lockheed Martin ExLS VLS or a combination of two units of three-cell Extensible Launching System (ExLS) VLS and a single eight-cell Lockheed Martin Mk41 Strike Length VLS. Each cell houses up to four MBDA Sea Ceptor missiles.
Navigation bridge
An integrated navigation and bridge system (INBS) developed by Raytheon Anschütz is installed in the middle of the ship to manage and control the vessel’s operations.
Featuring an IMO-certified navigation system, the INBS integrates with the ship’s
combat management system (CMS) and integrated platform management system (IPMS).
An additional mission bay is provided adjacent to the RHIBs to further increase mission flexibility.
Sensors on-board Venator-110 frigate
The Venator-110 general-purpose light
frigate incorporates different types of sensors to target, engage, and destroy a range of maritime and air targets.
The sensors include variable-depth towed-array sonar, hull-mounted sonar, multi-role surveillance radars, laser-warning system, radar and electro-optical fire control director, and active electronically scanned array (AESA) radars. It also includes an infrared search and track (IRST) system, electronic support measures (ESM), communications intelligence (COMINT), and electronic intelligence (ELINT) systems.
Venator-110 warship propulsion and performance
The frigate is equipped with a combined diesel and diesel (CODAD) propulsion system consisting of four diesel engines, two independent shaft lines, and controllable pitch propellers.
The vessel offers a maximum speed of 25kt and is capable of travelling a distance of 6,000nm at 15kt.
Venator-110 variants
Two other variants of the Venator-110 platform are the Venator-110 patrol frigate and Venator-110 patrol ship.
The Venator-110 patrol frigate is intended for use by the naval forces to perform tasks such as maritime security, regional enforcement, as well as intelligence, surveillance and reconnaissance (ISR) in a low-threat environment.
The Venator-110 variant is suited for coastguard applications, including counter-terrorism, humanitarian assistance, disaster relief, evacuation of entitled personnel, and maritime protection.