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

RAF Chinooks deploy aboard Queen Elizabeth for maritime training drill
An RAF-operated Chinook HC6A (serial ZH896) lifts off from the flight deck of HMS Queen Elizabeth (R08) during Exercise Hathi Pol on 20 October 2026. Image: MOD Crown Copyright/Royal Air Force
RAF Chinooks deploy aboard Queen Elizabeth for maritime training drill
RAF Chinooks have embarked aboard HMS Queen Elizabeth, testing the UK’s heavy-lift tactical transport capabilities in a maritime environment during Exercise Hathi Pol.
Aerospace Defence

3 Nov 2026

QinetiQ to support Government’s tech talent drive
TechFirst
QinetiQ to support Government’s tech talent drive
By providing work experience opportunities and technology programmes, including cyber security, QinetiQ is supporting the UK Government TechFirst initiative, aimed at delivering practical skills and career support for young people.
MOD seeks industry input on next-generation medical evacuation system
Imagery of the Atlas A400M, seen here operated by crews of LXX & 30 Squadron overseen by an XXIV Squadron instructor, carrying on beach landings over on Pembrey Sands. This was facilitated by Tactical Air Traffic Controllers and Tactical Fire who ensure the beach and activity is completed as intended. Along with conducting touch and go's alongside full stop landings, the aicraft also despatched a pair of RWMIK's driven by 16 Air Assault Brigade as part of an Engine Running Operation or ERO.
MOD seeks industry input on next-generation medical evacuation system
The MOD is looking to modernise the specialist systems used to transport patients with dangerous infectious diseases back to the UK.
Aerospace Defence

2 Nov 2026

RAF Chinooks deploy aboard Queen Elizabeth for maritime training drill
An RAF-operated Chinook HC6A (serial ZH896) lifts off from the flight deck of HMS Queen Elizabeth (R08) during Exercise Hathi Pol on 20 October 2026. Image: MOD Crown Copyright/Royal Air Force
RAF Chinooks deploy aboard Queen Elizabeth for maritime training drill
RAF Chinooks have embarked aboard HMS Queen Elizabeth, testing the UK’s heavy-lift tactical transport capabilities in a maritime environment during Exercise Hathi Pol.
Aerospace Defence

3 Nov 2026

NCSC says AI-powered attack on UK critical infrastructure likely by 2028
Futuristic Hand Reaching for AI Technology Interface Representing Artificial Intelligence and Data Management in a Digital World. Glyphic
NCSC says AI-powered attack on UK critical infrastructure likely by 2028
The NCSC warns the UK could face AI-powered cyber attacks on critical national infrastructure by 2028, prompting fresh warnings over national security and defence.
Defence Security

3 Nov 2026

Royal Navy tracks Russian warships in UK waters as RAF Protector makes operational debut
The Russian Vishnya-class intelligence-gathering vessel, Viktor Leonov (CCB-175), is shadowed by a Royal Navy-operated Merlin HM2 helicopter off the Outer Hebrides on 29 September 2026. Image: MOD Crown Copyright/Royal Navy
Royal Navy tracks Russian warships in UK waters as RAF Protector makes operational debut
Royal Navy warships and aircraft recently monitored Russian naval movements around Britain, with support from RAF Protector RG1 drones, which marked the type’s operational debut in UK airspace.
Defence Security

3 Nov 2026

QinetiQ to support Government’s tech talent drive
TechFirst
QinetiQ to support Government’s tech talent drive
By providing work experience opportunities and technology programmes, including cyber security, QinetiQ is supporting the UK Government TechFirst initiative, aimed at delivering practical skills and career support for young people.
Space cybersecurity starts on the ground: The hidden risks in satellite supply chains
headshot for Benny Czarny Opswat CEO
Space cybersecurity starts on the ground: The hidden risks in satellite supply chains
Compromised suppliers, unchecked files and insecure updates can threaten satellites before they reach orbit. OPSWAT founder and CEO Benny Czarny explains why prevention must start on the ground
Insights Security Space

31 Oct 2026

Plextek receives King’s Award for Enterprise in Innovation
King’s Award for Enterprise in Innovation from His Royal Highness the Duke of Gloucester.
Plextek receives King’s Award for Enterprise in Innovation
HRH The Duke of Gloucester has presented Plextek with the King’s Award for Enterprise in Innovation for its PLX-T60 sensing platform.
NCSC says AI-powered attack on UK critical infrastructure likely by 2028
Futuristic Hand Reaching for AI Technology Interface Representing Artificial Intelligence and Data Management in a Digital World. Glyphic
NCSC says AI-powered attack on UK critical infrastructure likely by 2028
The NCSC warns the UK could face AI-powered cyber attacks on critical national infrastructure by 2028, prompting fresh warnings over national security and defence.
Defence Security

3 Nov 2026

Royal Navy tracks Russian warships in UK waters as RAF Protector makes operational debut
The Russian Vishnya-class intelligence-gathering vessel, Viktor Leonov (CCB-175), is shadowed by a Royal Navy-operated Merlin HM2 helicopter off the Outer Hebrides on 29 September 2026. Image: MOD Crown Copyright/Royal Navy
Royal Navy tracks Russian warships in UK waters as RAF Protector makes operational debut
Royal Navy warships and aircraft recently monitored Russian naval movements around Britain, with support from RAF Protector RG1 drones, which marked the type’s operational debut in UK airspace.
Defence Security

3 Nov 2026

QinetiQ to support Government’s tech talent drive
TechFirst
QinetiQ to support Government’s tech talent drive
By providing work experience opportunities and technology programmes, including cyber security, QinetiQ is supporting the UK Government TechFirst initiative, aimed at delivering practical skills and career support for young people.