Advancing UK Aerospace, Defence, Security & Space Solutions Worldwide
  • Home
  • /
  • Defence
  • /
  • Ultra Maritime secures £40m MoD sonobuoys

Defence

Ultra Maritime secures £40m MoD sonobuoys

Ultra Maritime has secured a £40 million contract from the UK Ministry of Defence (MoD) to deliver sonobuoys for the Royal Navy’s Merlin Maritime Patrol Helicopter - significantly strengthening the UK’s undersea surveillance and deterrence posture at a time when British waters are under increasing threat from foreign actors.

Above: Aircrew with sonobuoys walk out to a Merlin Mk2 helicopter.
Courtesy DE&S

Sonobuoys are the frontline sensors of the UK’s anti-submarine warfare (ASW) network, and give the Royal Navy the ability to detect, track and deter hostile submarines and other underwater vessels.

Based at RNAS Culdrose in Cornwall, the Royal Navy’s Merlin Helicopter Force is a leader in ASW, continually deployed on the frontline with its Merlin Mk2 aircraft to defend UK waters and international defence interests.

Advertisement
PTC rectangle

Helicopter flights regularly deploy from 814 Naval Air Squadron to Royal Navy frigates, Royal Fleet Auxiliary ships or the navy’s forward operating base at Prestwick in Scotland. Sister unit 824 Naval Air Squadron is also held at high readiness to respond to any threats identified within UK waters.

Captain James Hall, the commanding officer of RNAS Culdrose, said: “Our anti-submarine capability is essential to protect Royal Navy submarines and the UK’s nuclear deterrent.

“The capability offered using sonobuoys forms an essential part of the toolkit used to identify, track and deter submarine threats. It is not an exaggeration to say that Merlin Helicopter Force – combining its aircraft, its sensors and equipment, and the crews’ extensive tactical training – is a world leader in anti-submarine warfare.

“Central to this capability is the tactical use of sonobuoys which our aircraft can deploy in-flight. Ultimately, the Merlin can be armed with Sting Ray torpedoes to eliminate that threat, if necessary. We face an increasingly uncertain and contested world, which includes ever evolving threats to our critical undersea national infrastructure. Our control of the subsurface maritime environment is a key pillar of the Royal Navy’s ability to confront global threats and ensure operational success as we defend the nation.”

Advertisement
ODU RT

Captain Colin Maude, Merlin Delivery Team Leader at the National Armaments Director Group, said: “This is a significant investment assuring the provision of UK-manufactured sonobuoys for the Royal Navy.

“These cutting-edge sensors will sharpen the Merlin’s anti-submarine warfare capability, ensuring the Royal Navy can maintain strong undersea surveillance and deterrence, safeguarding UK waters.”

Alongside this contract which covers design, development, engineering and manufacturing, Ultra Maritime has made significant investments in its UK footprint and recently expanded its London manufacturing facility, creating new high-skilled jobs and strengthening the industrial base that supports both the Royal Navy, NATO and Allied partners.

Ultra Maritime is also working with the MoD on miniaturised sonobuoys for Uncrewed Air Systems, expanding the UK’s future undersea surveillance reach and accelerating the transition to next-generation autonomous ASW systems.

Advertisement
ECS leaderboard banner
Babcock and ASELSAN partner on training simulation

Defence

Babcock and ASELSAN partner on training simulation

3 February 2026

Babcock has signed a Memorandum of Understanding (MoU) with ASELSAN, to explore the Royal Air Force’s (RAF) requirement for a Surface Electronic Warfare Threat (SEWT) training system as part of the Next Generation Operational Training (NGOT) programme.

Defence personnel to gain greater powers to defeat drones

Defence Security

Defence personnel to gain greater powers to defeat drones

3 February 2026

The security of key military sites will be strengthened as Defence personnel will be given stronger powers to defeat drones near bases as part of new measures being introduced in the Armed Forces Bill.

Viasat launches satellite service portfolio for government UAV ops

Defence Security Space

Viasat launches satellite service portfolio for government UAV ops

2 February 2026

Viasat today launched its next-generation satellite service portfolio, engineered to meet the evolving demands for government uncrewed aerial vehicle (UAV) operations worldwide, including intelligence surveillance and reconnaissance (ISR), emergency response and special operations.

BAE Systems opens new office in Utah

Defence

BAE Systems opens new office in Utah

2 February 2026

BAE Systems has announced the opening of its new office in Utah, marking an expansion of the company’s local footprint and continued investment in the state’s workforce, economy and innovation ecosystem.

Advertisement
Security & Policing Rectangle
ABT sets framework for OEM battery development

Aerospace Defence Security

ABT sets framework for OEM battery development

2 February 2026

UK battery pack manufacturer Alexander Battery Technologies (ABT), has set out a clearer framework for how OEMs can approach battery development.

Marshall and Nordiq to advance defence medical technology

Defence

Marshall and Nordiq to advance defence medical technology

2 February 2026

Marshall Aerospace and Nordiq Products have commenced an industrial cooperation (IC) project to support the development and path to market for a next-generation vital signs monitoring capability.

Advertisement
PTC rectangle
Advertisement
Babcock LB Babcock LB