Rolls-Royce announced today that its UltraFan® power gearbox has set a new world aerospace
record at its facility in Germany.

The gearbox has reached 87,000 horsepower or 64 megawatts – enough to power a city the size of
Bath, United Kingdom – on test at Dahlewitz, near Berlin. The power milestone was achieved as build
continues on the power gearbox that will be delivered for the actual UltraFan demonstrator engine,
UF001, later this year.

UltraFan, which is scalable for narrowbody or widebody aircraft, is a key element of Rolls-Royce’s

commitment to making travel more sustainable. Gas turbines will continue to be the bedrock of long-
haul aviation for many years, and UltraFan’s efficiency will help improve the economics of an industry

transition to more sustainable fuels, which are likely to be more expensive in the short-term than
traditional jet fuel. The first test run of the engine will be conducted on 100% Sustainable Aviation
Fuel.

Dr Holger Klinger, Sub-System Executive Power Gearbox, Rolls-Royce, said: “Reaching this record is
another great achievement that showcases the performance and durability of this key component for
our UltraFan programme. The power gearbox technology is central to the success of the next
generation of Rolls-Royce jet engines and I’m proud to see us pushing the engineering boundaries
again.”

The PGB is playing a central role for the UltraFan engine, helping to deliver excellent efficiency
levels over a wide range of thrusts. It has a planetary design, with each ‘planet’ capable of holding
the force of a Trent XWB engine at full throttle. It is designed to allow the turbine at the rear of the
engine to run at a very high speed while the fan at the front runs at a lower speed. This makes the
engine very efficient, making the UltraFan engine 25% more fuel efficient than the first generation
of Rolls-Royce Trent engines.

Development testing of the first prototype gearbox, focused on validation, endurance and reliability,
began in 2017 at the dedicated PGB test facility in Dahlewitz. During a rigorous test regime, the
power gearbox has since accumulated more than 650 testing hours and proven its capability of
managing the equivalent power of an entire grid of Formula 1 cars.

As well as high power testing, the PGB has been undergoing test on the facility’s Attitude Rig, which
simulates the effect of the gearbox being on the wing of an aircraft in flight, through phases such as
take-off, climb, banking and descent.

About Rolls-Royce Holdings plc

1. Rolls-Royce pioneers the power that matters to connect, power and protect society. We have
   pledged to achieve net zero greenhouse gas emissions in our operations by 2030. We joined
   the UN Race to Zero campaign in 2020, and have committed to ensuring our new products
   will be compatible with net zero operation by 2030, and all products will be compatible with
   net zero by 2050.
2. Rolls-Royce has customers in more than 150 countries, comprising more than 400 airlines and
   leasing customers, 160 armed forces and navies, and more than 5,000 power and nuclear
   customers.
3. Annual underlying revenue was £11.76 billion in 2020 and we invested £1.25 billion on
   research and development. We also support a global network of 28 University Technology
   Centres, which position Rolls-Royce engineers at the forefront of scientific research.
4. Rolls-Royce Holdings plc is a publicly traded company (LSE:RR., ADR: RYCEY, LEI:
   213800EC7997ZBLZJH69).