How to install the “Mighty” MT30

How to install the “Mighty” MT30

into one of the world’s most advanced frigates

The build programme for the Royal Navy’s new City Class Type 26 frigate is well underway at BAE System’s Govan shipyard, Scotland. As a key supplier to the programme, Rolls-Royce recently supported one of its most important build milestones – installation of our MT30 marine gas turbine compact package into the ship.

Debbie Roots, Programme Lead for the Type 26 Gas Turbines has the enviable job of delivering this exciting build milestone. We asked Debbie what exactly is involved in the installation process.

Planning and Preparing for Installation

MT30 Marine Gas Turbine

“Installing a gas turbine package into a warship is a mighty task and requires a great deal of co-ordination.  With a weight of nearly 27 tonnes, it’s the equivalent of lifting at least two London buses into place, so a specialised crane is used to lift the engine package, which includes the core engine and the integrated engine enclosure.   

The specialised integrated gas turbine enclosure is a highly complex engineering solution that provides the mechanical support, noise suppression, controls, air intake, exhaust outlet, ventilation and auxiliary supplies necessary to ensure optimal performance for the MT30 engine; the world's most modern and power-dense marine gas turbine in service today. 

“The MT30 marine gas turbine package has been fully tested and in storage for some time, ready for this important moment.  Prior to the lift taking place, a joint working team between Rolls-Royce and BAE Systems was set up to ensure that the vital planning process was agreed and completed prior to installation.  This is a key part of the planning activity as it’s crucial that any supporting equipment such as the tooling to enable the lift and the crane itself are available and in the correct location - it’s not something you can just take off a shelf or wheel across the yard.  Tooling that connects the crane to the package has to be capable of lifting the weight and needs to be engineered well in advance of the lift itself.  We also have to ensure that qualified personnel are in place to supervise the lift.  Then naturally there is a significant amount of paperwork to complete ahead of the installation.  This involves detailed risk assessments and ensuring that the right procedures are in place.

“Working collaboratively with our customers throughout this process delivers many benefits.  We can explore improvements to the original plans that would have been drawn up some time ago.  For example, we jointly decided to bring forward the installation of the high speed coupling shaft which connects the gas turbine to the gear box prior to the lift, as opposed to doing it separately later down the line.  This improvement will save time in the programme’s commissioning phase.   

“Then on the day of the lift itself, you can be at the mercy of the weather conditions which can also wreak havoc with any solid plan.  Strong winds will stop any “lift” in its tracks.  Fortunately on this occasion, nature was on our side – it’s not always the case.

 
 

Pictured is HMS Queen Elizabeth - Photo credit Crown copyright

A Sense of Achievement

“As I’ve worked on this programme for nearly six years, from the design phase right through to manufacturing and delivery, seeing the MT30 gas turbine package perfectly installed into the first ship is something I’ve been looking forward to for a long time.  It is such a proud and significant moment for the team involved – a true testament to all our hard work.  The Type 26 Global Combat Ship will be one of the most technologically advanced anti-submarine warships ever built and I feel incredibly privileged to be a part of this project.  It’s quite unique to be able to say you ‘played a part’ in leading the MT30 gas turbine package installation into the first of class ship!

What’s next?

“I’m now looking forward to the commissioning phase of the programme when the power and propulsion system will be tested, which will be a new experience for me.  That will happen in the second half of 2021.  I know that as the ship starts to come together, the sense of satisfaction will be absolutely enormous.  It really makes all your efforts feel incredibly worthwhile.  In the meantime, it’s back to my desk to continue focussing on the Ship 2 hardware deliveries that will continue through the rest of this year and into the next.”

About the Type 26 Global Combat Ship

The first ship of the Type 26 City Class is due to enter service with the Royal Navy in the 2020s to replace their Type 23 fleet.   The Type 26 City Class is the based on the Type 26 Global Combat Ship design which has also been selected for the Royal Australian Navy’s Hunter Class and the Royal Canadian Navy’s Canadian Surface Combatant programmes.

The Global Combat Ship is described as a world-leading design with a robust, efficient power and propulsion (P&P) system. The P&P system provides exceptional power, superb acoustic performance and is able to operate globally without any loss in power.

Rolls-Royce is a supplier of key mission critical equipment to BAE’s Global Combat Ship. Rolls-Royce is supplying the core components of the frigate’s hybrid propulsion system.  This includes a single MT30, the world’s most powerful in-service marine gas turbine, and four Rolls-Royce MTU diesel gensets (20V 4000 M53B diesel gensets).  

Rolls-Royce also supplies the Mission Bay Handling System delivering critical adaptability and flexibility to multi-mission warships.  The Mission Bay Handling System has the capability to launch and recover naval vehicles and move containerised packages without the aid of a dockside crane. The multi-functional system can also be easily adapted to support custom operational requirements, such as humanitarian missions, by providing the space for medical facilities and aid supplies.