HMS Defender is the fifth Type-45 destroyer of the Royal Navy. Credit: The Royal Navy.
HMS Defender (D36) is homeported at Portsmouth. Credit: The Royal Navy.
HMS Defender was built at BAE Systems' Scotstoun yard on the River Clyde in Glasgow. Credit: The Royal Navy.
HMS Defender features Sampson long-range radar. Credit: The Royal Navy.
The fifth destroyer of the Type 45 class is equipped with state-of-the art systems and equipment. Credit: The Royal Navy.
The gunnery trials on HMS Defender were completed in March 2013. Credit: The Royal Navy.
A Lynx maritime attack helicopter was test landed on the Type 45 vessel in October 2012. Credit: The Royal Navy.
HMS Defender officially entered operational service with the Royal Navy on 21 March 2013. Credit: The Royal Navy.
BAE Systems is the prime contractor for the construction of Type 45 class destroyers, including the HMS Defender. Credit: The Royal Navy.

HMS Defender is the fifth destroyer vessel of the Royal Navy’s Type 45 Class Destroyers. It is also the largest and most powerful destroyer in the navy’s fleet. The vessel was delivered to the Royal Navy in July 2012. The vessel is homeported at Portsmouth Naval Base.

The Defender destroyer entered operational service with the Royal Navy on 21 March 2013, following successful completion of extensive sea trials and training.

Type 45 predecessors of HMS Defender include HMS Daring, HMS Dauntless, HMS Diamond and HMS Dragon. The sixth and final Type 45 destroyer, HMS Duncan, was delivered to the Royal Navy on 22 March 2013 and was operational in December 2013.

Type 45 Class destroyers, including the HMS Defender, are deployed for a variety of local area field defence missions, such as anti-piracy, anti-smuggling, disaster relief, surveillance and war fighting.

Type 45 Class programme

The Type 45 Class was announced by the UK Ministry of Defence (MoD) in July 2004 with the aim of replacing the Type 42 destroyers that had been in the Royal Navy’s service since 1978.

The number of vessels ordered under the latest class was reduced to six, from the original plan for 12 vessels. BAE Systems Marine was appointed as the prime contractor to build the six vessels in the class.

HMS Defender design and construction

HMS Defender has a length of 152m, beam of 21.2m and draught of 5.3m. The displacement of the vessel is 8,000t.

BAE Systems laid down the HMS Defender in July 2006 and launched it at the Govan yard in Glasgow, Scotland, in October 2009. The hull of the vessel was built using 2,800t of steel and covered with 40t of paint. Final construction and systems integration was carried out at the company’s Scotstoun shipyard on the River Clyde in Glasgow.

The destroyer vessel left for its maiden voyage in October 2011, which was followed by a series of trials for testing her systems and mission capabilities. These included safety, speed, propulsion, power, manoeuvrability, navigation, combat and weapon systems, as well as radars, sensors and other systems.

Accommodation, weapon systems, missiles and guns

HMS Defender can complement a crew of 190 personnel. It has 777 compartments, which means a heavy surplus of approximately four compartments for each crew member.

HMS Defender is fitted with a 4.5MK8 medium calibre gun, two 30mm medium-calibre gun system, two Phalanx short-range machine guns, mini-guns, a Sea Viper surface-to-air missile system and Lynx MK8 helicopter weapons system. The Sea Viper missile system provides all-round defence against aerial threats approximately 70 miles away.

HMS Defender can defend against air missiles attacking at supersonic speeds, a group of ships, and aircraft carriers. The vessel features an Identification Friend or Foe (IFF) system supplied by Raytheon Systems.

The combat management system for HMS Defender integrates the Principal Anti-Aircraft Missile System (PAAMS) developed by Europaams. The combat management system was supplied by BAE Systems Integrated System Technologies.

HMS Defender destroyer propulsion and performance

HMS Defender is propelled by two WR-21 advanced cycle gas turbine engines developed and manufactured jointly by Rolls-Royce and Northrop Grumman.

HMS Defender can sail at a top speed of more than 30k. The range of the vessel is approximately 7,000nmi (12,964km).

A Lynx maritime attack helicopter was tested for rescue operations aboard HMS Defender in October 2012.

Sonar / radar of the Royal Navy’s destroyer

The HMS Defender destroyer is fitted with Sampson multifunctional, long-range radar, which provides mid-course guidance by detecting and tracking hundreds of targets at a time. It is also fitted with medium-frequency sonar supplied by Ultra Electronics and EDO Corporation.