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HMS Bartoloměj III in April 2021
Class overview
Name:	Bartoloměj class
Builders:	Milsau Shipyard Mostky Shipbuilding
Operators:	Royal Holyn Navy
Preceded by:	Mladkov class
Cost:	7 billion HRK
Built:	2015–present
In service:	2021–present
Planned:	4
Active:	1
General characteristics
Type:	Guided missile cruiser
Displacement:	12-13,000 tonnes (full load)
Length:	180 m (590 ft 7 in)
Beam:	20 m (65 ft 7 in)
Draught:	6.6 m (21 ft 8 in)
Installed power:	6 × turbine generators (5 MW (6,700 hp) each) Total: 30 MW (40,000 shp)
Propulsion:	COGAG 4 × gas turbines (28 MW (38,000 hp) each) Total: 112 MW (150,000 shp)
Speed:	30 knots (56 km/h; 35 mph)
Range:	5,000 nmi (9,300 km)
Complement:	300+
Sensors and processing systems:	R5661-A (C/S-band) AESA 3D radar X-band radar
Electronic warfare & decoys:	Electronic warfare system
Armament:	1 × 130 mm gun 1 × CIWS 1 × Short-range SAM 24-cell launcher 112 VLS surface-to-air missiles anti-ship cruise missiles land-attack cruise missiles Missile-launched anti-submarine torpedoes 2 x sets
Aircraft carried:	2 medium-lift helicopters
Aviation facilities:	Stern hangar Helicopter landing platform

The Bartoloměj class is a class of guided missile cruisers designed and built by the Milsau Shipyard and Mostky Shipbuilding. The class is named after King Bartoloměj III, ruler of Holynia from 1731 to 1757. The class is designed to have a multi role functionality. Its primary role will be to operate as a command ship with anti-ship, anti-land, anti-submarine, and anti-aircraft capabilities. The class also has ballistic missile tracking capabilities because of the multifunction active electronically scanned array naval radar system. The class is meant to replace the Mladkov class cruisers and complement the Podkost and Kováň class guided missile destroyers.

Development

The Mladkov class cruisers suffered from limited air defence capabilities. The limited air defence radars and low anti-air missile stocks of the Mladkov class became apparent when the Lapša class guided missile destroyers entered service. Growing maintanence issues on systems, weapons and the powerplants of the Mladkov class led the Holyn Navy to research a replacement. In 2012, Milsau Shipyard and Mostky Shipbuilding were awarded a contract to develop the replacement of the Mladkov class. The development was alongside the Ledetz class guided missile destroyers, which the new cruiser would share a number of similar features. The design was unveiled in 2014 with construction beginning in 2015. The first ship was to be named after King Bartoloměj III, ruler of Holynia from 1731 to 1757. The ship was launched in 2016 and conducted sea trials in 2018. Fitting out of the King Bartoloměj III concluded in 2019 and the ship continued sea trials and training. The ship was commissioned on 10 March 2021 and entered service with the 3rd fleet.

Podkost-class destroyer

The Podkost class are guided missile destroyers serving in the Royal Holyn Navy. The class introduced active electronically scanned array (AESA) radars into navy service. Seven ships were built between 2004 and 2017, with the class being suceeded by the Ledetz class of guided missile destroyers. The Podkost class is the first class of the Project 250 destroyer design.

Development

Research into building new Lapša class destroyers was conducted in 2002. The Ministry of Defence decided to begin with a new clean sheet design to succeed the Lapša class. A contract was awarded to Milsau Shipyard to design and construct a new class of destroyers for the Royal Holyn Navy. The first keel was laid down in July 2004 at Milsau. Ground tests of many of the systems were held by the various subcontractor companies between 2004 and 2006. The first hull was launched in March 2005 during a ceremony attended by the Royal family. It was the largest naval ship to be launched in Holynia since 1997. Fitting out of the ship continued throughout 2005 and sea trials began in 2006. The new active electronically scanned array (AESA) radar system was tested in early 2007. Work was concluded in mid-2007 and the first ship, HMS Podkost was commissioned into Navy service in May 2007. 3 further hulls were laid down between 2005 and 2009. The first ships in service succesfully demonstrated their data link capabilities when completing air defence exercises in the Holyn Sea.

Design

Weapons

The surface to air missile of the Lapša class is the PS-105M (maritime) air defence missile launched from 48 revolver style vertical launching system cells. The FS-610 are the primary land attack cruise missiles. The anti-ship missile is the FS-500 supersonic anti-ship cruise missile. The typical loadout prioritises carrying more PS-105M anti-air missiles over the other surface to surface missiles. This can be altered depending on the specific mission.

A single fore mounted 100 mm gun is mounted on the Lapša class ships. Two OS-150 CIWS provide defence capabilities at close ranges.

Command and control

The class featured the first generation of the Hodit command and control computer system developed by the Uhrov Polytechnical Science Academy. The system uses the ship's 3D air search radar to track targets and assist naval personnel in target identification and area air defence. It enables the PS-105M missile system to engage multiple targets simultaneously. Hodit was designed to communicate with the PS-105M to provide guidance and intercept scheduling. During the 2016 refit of the Lapša class, Hodit was updated to Hodit IV standards.

Radar

A passive electronically scanned array E band 3D radar is mounted on the ship for air target acquisition and is linked with the Hodit combat system. The radar can search for aircraft up to 300 km. Much of the remaining systems were carried over from the Eule and Slavníč destroyers. A G/H band surface search radar provides scanning for the CIWS system. An over-the-horizon targeting radar is mounted for surface search. Navigation and surface control radars are also mounted.

Sonar

The powerful anti-submarine warfare systems of the Slavníč class was installed on the Lapša class. Hull mounted and towed array sonar systems are installed on the Lapša class.

Ships of class

HMS Podkost in September 2016
Class overview
Name:	Podkost class
Builders:	Milsau Shipyard
Operators:	Royal Holyn Navy
Preceded by:	Lapša class
Cost:	4.7 billion HRK
Built:	2005–2017
In commission:	2007–present
Planned:	7
Active:	7
General characteristics
Type:	Guided missile destroyer
Displacement:	7,000 tonnes (full load)
Length:	155 m (508 ft 6 in)
Beam:	17 m (55 ft 9 in)
Draught:	6 m (19 ft 8 in)
Propulsion:	CODOG 2 × gas turbines (35.7 MW (47,900 hp) each) 2 × diesel enginess (6 MW (8,000 hp) each)
Speed:	29 knots (54 km/h; 33 mph)
Range:	4,500 nmi (8,300 km)
Complement:	280
Sensors and processing systems:	R5661-A (C/S-band) AESA 3D radar X-band radar Bow mounted sonar
Electronic warfare & decoys:	Electronic warfare system
Armament:	1 × 130 mm gun 2 × CIWS 48 VLS surface-to-air missiles anti-ship cruise missiles land-attack cruise missiles Missile-launched anti-submarine torpedoes 2 x sets
Aircraft carried:	1 medium-lift helicopter
Aviation facilities:	Stern hangar Helicopter landing platform

Name	Namesake	Builders	Laid down	Launched	Commissioned	Fleet	Status
HMS Podkost	Lapša, Nitra Region, Holynia	Milsau Shipyard, Milsau	7 July 2004	21 March 2005	10 May 2007	1st Fleet	Active
HMS Zdenice	Jazernica, Staré Region, Holynia	Milsau Shipyard, Milsau	15 March 2005	11 June 2007	21 April 2008	1st Fleet	Active
HMS Bytina	Sazdice, Krupina, Holynia	Milsau Shipyard, Milsau	30 June 2007	10 February 2008	27 July 2010	1st Fleet	Active
HMS Úžín	Kosmo	Milsau Shipyard, Milsau	10 March 2009	19 June 2010	20 February 2012	1st Fleet	Active
HMS Malenitz	Malenitz hill, Holynia	Milsau Shipyard, Milsau	21 August 1996			1st Fleet	Active
HMS Vice Admiral Jeroným Pavlíček	Bytina district, Bytca, Holynia	Milsau Shipyard, Milsau	9 December 1996			1st Fleet	Active
HMS Štramberk	Kováň district, Holynia	Milsau Shipyard, Milsau	Planned for 1997			1st Fleet	Active