General Atomics

DE&S extends IMOS contract

Defence Equipment & Support (DE&S) have extended an existing Integrated Merlin Operational Support (IMOS) contract for up to two years, to ensure the continued expert upkeep of the Royal Navy’s fleet of 54 AW101 Merlin helicopters.



Image courtesy DE&S

The contract, worth more than £165 million, will sustain around 1,000 highly skilled UK jobs, 200 of which are located at Leonardo’s helicopters facility in Yeovil and 800 across the wider UK supply chain and Royal Naval Air Station (RNAS) Yeovilton and RNAS Culdrose.

The contract covers the fleet of 30 Merlin HM Mk2 maritime patrol helicopters and 24 Merlin HC Mk4/Mk4A amphibious and battlefield lift aircraft.

Armed with Sting-Ray Torpedoes and M3M .50 calibre machine guns, the HM Mk2 helicopters provide the Royal Navy with Anti-Submarine and Anti-Surface Warfare capability, as well as using their powerful radars high above the navy’s carrier strike groups for airborne surveillance and control.

The HC Mk4/4A fleet provides troop transport, casualty evacuation and can carry medium lift under-slung loads of up to 3.8 tonnes. Both variants can carry out secondary roles such as search and rescue.

The IMOS extension builds on the previous contract for depth maintenance; supply of spares, aircrew and maintainer training; technical support service; proactive obsolescence service, and support to other platforms.

Those working on the contract will be part of ensuring that the fleet of state-of-the-art Merlin helicopters are prepared for everyday high readiness of homeland Defence, thanks to their expert maintenance.

Minister for Defence Procurement and Industry, Rt Hon Maria Eagle MP said: “Our fleet of world-class Merlin helicopters provide the Royal Navy with a vital advantage over our adversaries, keeping our carrier strike groups safe and enhancing their battle-winning capability.

“This investment demonstrates our unwavering commitment to maintaining cutting-edge defence capabilities that keep us safe, while utilising defence as an engine for economic growth, supporting 1,000 well-paid jobs across the UK.”

In a recent operation, Merlin helicopters  were deployed on Operation Clockwork in Norway, training Commando Helicopter Force air and ground crew. A number of Merlin helicopters will also join the upcoming Carrier Strike Group (CSG25) deployment.

As well as jobs based at Leonardo in Yeovil, other roles supported by the contract – including apprenticeships – are based at RNAS Culdrose in Cornwall at the Merlin Depth Maintenance Facility where the Merlin Mk2 aircraft and training system are located, while the Royal Navy’s Merlin Mk4 aircraft and training system are located at RNAS Yeovilton in Somerset.

Mark Langrill, DE&S Director Rotary Wing and Uncrewed Air Systems, said: “We are pleased to continue our successful partnership with Leonardo Helicopters in ensuring that the Royal Navy’s fleet of Merlin helicopters remain in optimal condition. This contract extension will strengthen our ongoing collaboration and contribute to the security and economic growth of our nation, whilst ensuring high levels of aircraft availability and sustaining highly skilled jobs across the UK.”

Leonardo is the prime contractor for IMOS, with Lockheed Martin and SERCO appointed as key sub-contractors.

Nigel Colman, Managing Director, Leonardo Helicopters UK, said: “We’re extremely proud to have provided the UK’s AW101 Merlin fleet from the Home of British Helicopters in Yeovil.

"Working closely with the Ministry of Defence and Royal Navy, we’re keeping the Merlin fleet supported and available, so it’s ready to fly whenever and wherever it’s called upon. At the same time, we’re looking towards how Merlin will be supported in the years to come under the Rotary Wing Enterprise (RWE) agreement, which will transform how support will be delivered across the whole UK rotary fleet.”

Related

UK Finance Minister signals support for London Heathrow Airport’s £33 billion runway expansion
London Heathrow
UK Finance Minister signals support for London Heathrow Airport’s £33 billion runway expansion
In contrast to the cautious response of the UK Prime Minister, Chancellor John Healey has backed Heathrow's expansion plans.
Aerospace

17 Oct 2026

Marshall Aerospace outlines its next chapter following AURELIUS acquisition
Marshall Aerospace
Marshall Aerospace outlines its next chapter following AURELIUS acquisition
Speaking exclusively to Advance, Marshall Aerospace discusses its military aircraft contracts, manufacturing priorities and search for a new home following the takeover.
Aerospace Insights

17 Oct 2026

17,000 aircraft on order: How does the industry actually clear the backlog?
Boeing 737 factory in Renton
17,000 aircraft on order: How does the industry actually clear the backlog?
Aircraft manufacturers are under pressure to deliver faster, but supply-chain constraints continue to hold production back. What will it take to turn growing orderbooks into aircraft ready to fly?
Aerospace

17 Oct 2026

UK defence is moving faster. Can its legal frameworks keep pace?
UK defence is moving faster. Can its legal frameworks keep pace?
As UK defence procurement accelerates, legal experts at Crowell & Moring explore how businesses can seize opportunities while managing legal risk.
Defence Insights

17 Oct 2026

From trials to frontline capability: Accelerating AI adoption in UK defence
Jack Maxton headshot
From trials to frontline capability: Accelerating AI adoption in UK defence
Jack Maxton, CEO of DIGI2AL, argues that faster experimentation, closer industry collaboration and a shift in mindset can help the MOD turn AI ambitions into operational advantage.
BAE Systems to design satellite comms terminals for US Space Force
Satellite
BAE Systems to design satellite comms terminals for US Space Force
Building on its space-hardened family of software-defined radios, BAE Systems will develop resilient ultra-compact radio-frequency (RF) terminals for the US Space Force.
Defence Member News

16 Oct 2026

Viasat orders ALL.​SPACE Hydra MAX Terminals for Ka-band networks
ALL.SPACE Hydra
Viasat orders ALL.​SPACE Hydra MAX Terminals for Ka-band networks
Viasat has placed an order for multiple ALL.​SPACE Hydra MAX terminals approved to operate on Viasat's global NextGen Ka-band network, providing resilient SATCOM connectivity for defence and government users.
Defence Member News Space

15 Oct 2026

Cornwall Space Cluster launches £15k legal support programme for space SMEs
Goonhilly satellite near Cornwall Space Cluster
Cornwall Space Cluster launches £15k legal support programme for space SMEs
Cornwall Space Cluster has partnered with Stephens Scown to offer specialist legal advice to space businesses, helping them protect intellectual property, prepare for investment and support future growth.
Space

15 Oct 2026

ClearSpace selected to deliver UK’s first active debris removal mission
ClearSpace removing space debris
ClearSpace selected to deliver UK’s first active debris removal mission
The UK-led programme will remove two defunct satellites while creating specialist jobs, supporting supply chains and building capability in the growing in-orbit services sector.
Space

15 Oct 2026

Police officers risk accidental AI misconduct, watchdog warns
National Police Chiefs Council photo of police on duty
Police officers risk accidental AI misconduct, watchdog warns
The Independent Office for Police Conduct has warned that officers and staff risk misconduct investigations for inappropriate AI use.
Security

16 Oct 2026

NAD and CDS want accelerated capability as DSEI UK 27 launched
NAD and CDS launch DSEI UK 27
NAD and CDS want accelerated capability as DSEI UK 27 launched
As the National Armaments Director (NAD) and the Chief of the Defence Staff (CDS) launched DSEI UK 2027 yesterday, they said faster capability delivery, greater innovation and improved readiness are required to ensure the UK and its allies are suitably prepared for any future conflict.
Warwickshire Police turns to AI to review the quality of investigations
Chat with AI or Artificial Intelligence technology. Man touching chatting virtual with an intelligent artificial intelligence asks for the answers he wants. Smart assistant futuristic, Chatbot,
Warwickshire Police turns to AI to review the quality of investigations
An eight-agent system checks investigation records against policing standards, with officers retaining responsibility for decisions.
Security

14 Oct 2026