Availability of the Royal Navy’s fleet of 55 Merlin helicopters is hoped to increase thanks to a new engine support contract award which runs through to 2030.

Defence Equipment & Support (DE&S) has placed a £241m, six-year contract with Safran Helicopter Engines UK to deliver continuous support for the helicopter’s RTM322 engine and support British jobs.

“The six-year contract, which starts on 1 April 2024, will deliver an improved, flexible arrangement that optimises availability and grades success against agreed performance outputs, ensuring Merlin’s capability while carrying out its vital roles delivering UK maritime force protection, anti-submarine warfare and amphibious medium lift capability.”

Minister for Defence Procurement James Cartlidge said:

“The versatile Merlin has been a workhorse for the Royal Navy for years, protecting and supporting global deployments. This new support contract will increase the mission availability of the Merlin so it can continue hunting submarines, conducting maritime patrols, ferrying troops, and evacuating casualties.”

Keith Bethell, Director – Helicopters at Defence Equipment and Support, said:

“During the years the Merlin has proved to be an outstandingly versatile asset to the armed forces and Safran’s expertise has contributed to that success through meticulous support for the RTM322 engine. This contract secures more than 30 high skilled jobs in the UK, mainly in Fareham, and shows that the engine is being looked after and maintained in the best way possible.”

There are two types of Merlin helicopter currently in use in the Royal Navy.

The MK2 features enhanced radar and sonar systems that make it a potent enemy sub hunter, but it is also used for maritime patrol, troop ferrying, casualty evacuation, search and rescue and other contingency tasks. Since coming into service in 2014, the Merlin MK2s have been deployed from a number of platforms across the Royal Navy, including the Queen Elizabeth Class carriers, the Daring Class destroyers, the Duke Class frigates and the RFA vessels.

The other Merlin helicopter currently in service by the Royal Navy is the MK4, which features several modifications for use by the Royal Marines. These include a fast-roping beam that allows the rapid deployment of Special Forces from the main cabin door.

Tom Dunlop
Tom has spent the last 13 years working in the defence industry, specifically military and commercial shipbuilding. His work has taken him around Europe and the Far East, he is currently based in Scotland.

21 COMMENTS

    • 55 isn’t a bad number if 2/3 are available in a crisis.

      However, my inexpert understanding is that the gearbox was what reduced availability?

  1. A contract securing work for 30 people to provide contractor logistics support for helicopter engines. How does that work out at £40M per annum?

    • Because a lot of it will include sourcing major parts and spares that are mostly coming from France but they don’t say “also supporting 150” jobs at Safran SA

    • Because as usual with government contracts it will be via a french or German consultancy Nd each person will be charged at 2000 a day. Not that the workers will get that but the fat cats who are paying ministers and civil servants back pockets from the inflated charges are also on a good screw from the tax payer

  2. Alongside the upgrades getting AEW onto a UAV to ditch the ridiculously drawn out and expensive Crowsnest and let the 30 HM2’s refocus on ASW should be a priority to improve availability.

  3. Merlin is now due OOS 2040 instead of 2029/30 and we only have 30 HM2 Airframes, so then what ? I just do not see any real alternative to a manned ASW Helicopter, can a UAV carry out ASR, tend to a casualty, FlyGuard or spot a man overboard ?

    We are all screaming that we need more ships for this and that, well it isn’ happening anytime soon. It should have been donw adecade ago and it wasn’t and now all our yards are full and will be for more several years.

    However even is you take account of the 1/3rd rule as being in for refit etc we should concentrate on having what we have and what we will have being fully armed and outfited.

    So 1 QE, 4/5 T26, 2 Tide class and 2 FSS all carrying Merlins and that is it, we don’t have sufficient Merlins for what we have never mind any more ships.

    When I look around at possible replacements I struggle to see anything better than the present Merlin interms of growth, capabilty or capacity.

    So IMHO maybe MOD should speak to Japan, Poland and Italy to sound them out about putting a modernised AW101 into low rate production of 6/8 pa to add mass to what we now have and eventually replace them.

    • We did, this was a joint venture between RR and what is now Safran. RR sold their share but still provided engine components to Safran. They did the same with the IAE500 engine on Airbus narrrowbodies, sold out their interest but continue to manufacture their components.

  4. Build some more, lots more, save the shipyard as well need more ships so start building now. We also need tanks, planes, guns, soldiers, Putin has already said, stated publicly that the war in Ukraine is just a step and his war against the west (us) is going to continue

  5. Merlin uses 3 piddly RTM322s (the engine is about 1m long). I have often wondered why a pair of Honeywell T55-714s weren’t used instead, as used by the Chinook? At just over 2000shp, the RTM produces less than half the power of a T55-714 at 4800 shp. It is around the same length, though admittedly larger in diameter.

    A pair of T55s would give around 9600 shp whilst 3 x RTMs are just over 6000 shp. This would offer a huge increase in potential payload lift capability, compared to what it can do today. The gearboxes, drivetrain and rotor blades would need uprating to handle the additional power. Even when shutting down one of the RTMs for cruise. A single T55 still produces more power than two RTMs.

    I think it was a wasted opportunity, when the HM1s were upgraded to HM2. That an engine replacement wasn’t also undertaken. If Boeing can model and build a test Chinook Model F Block 3, for the larger Honeywell T55-715C that produces 6000shp. Why can’t Leonardo (Westlands) do the same for the EH101 Merlin?

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