Supplier Spotlight

Video Exclusives

Airbus updates on Skyways urban delivery drone

Airbus Helicopters reports that it plans to start field trials later this year in Singapore of the UAV, which is able to deliver parcels that weigh up to 4kg.

Click here to watch video

16 February, 2018

Ehang autonomous aerial vehicle manned flight tests

Chinese firm Ehang announced that it has achieved a series of manned flight tests carrying one and two passengers, including its CEO and government officials.

Click here to watch video

06 February, 2018


To watch more videos, click here

We'd like to know, what do you think are the greatest engineering challenges to be solved for electric and hybrid aircraft, before they can be used more widely in aviation?


Rolls-Royce runs Lean-Burn Combustion test engine for first time

Rolls-Royce Trent 1000  

Rolls-Royce engineers has tested its lean-burn combustion process for the first time on a test engine in Derby in the UK.


The ALECSys (Advanced Low Emissions Combustion System) will be used in the company's future jet engines, such as the Advance3 and UltraFan, which are planned to be on the market by 2020 and 2025 respectively. 


ALECSys improves the pre-mixing of fuel and air before ignition to deliver a more complete combustion of the fuel and lower NOx and particulate emissions. The system was housed within an adapted Trent 1000 engine for the test.


Andy Geer, chief engineer and head of program for UltraFan, Rolls-Royce, said, "We are very proud to see this technology come to life for the first time. We are confident that the ALECSys system will offer significant benefits for our customers and look forward to putting the demonstrator through its paces." 


The development of ALECSys has been part-funded by the European Union's Clean Sky SAGE (Sustainable And Green Engine) program. 


Other recent testing milestones at Rolls-Royce include the running of its Advance3 test engine for the first time in November and the testing of the gearbox for the UltraFan engine in September 2017. The gearbox reached 70,000hp while being tested at the Rolls-Royce facility in Dahlewitz, near Berlin, Germany, a record level of power transmission in the aerospace sector. 


The UltraFan is a geared, scalable engine, designed to be suitable for both wide-body and narrow-body aircraft and to offer 25% fuel efficiency improvement over the first generation of Rolls-Royce Trent engines. 


February 6, 2018


Written by Ben Sampson


Your email address:

Read Latest Issue

Read Latest Issue

Web Exclusives

In just six months, the US Air Force publicly announced and flew its Light Attack Experiment, pitching four platforms against a series of demanding mission objectives
Click here to read more

A new flight test project led by Airbus spearheads an EU effort to see if laminar-flow wings can be produced on an industrial scale
Click here to read more

BAE Systems’ structural test team at Brough has now completed a third cycle of F-35A fatigue testing
Click here to read more

Two leading test pilot schools continue to invest in aircraft, equipment and new approaches to better meet the changing needs of industry 
Click here to read more

What role will wind tunnels play in the testing of future aircraft? NASA’s latest supersonic testing program provides some clues
Click here to read more

Supplier Spotlight

Supplier SpotlightClick here for listings and information on leading suppliers covering all aspects of the aerospace testing industry. Want to see your company included? Contact for more details.

Submit your industry opinion

Industry BlogDo you have an opinion you'd like to share with the aerospace testing community? Good or bad, we'd like to hear your views and opinions on the leading issues shaping the industry. Share your comments by sending up to 500 words to

Submit Your Recruitment Ad

Recruitment AdTo send us your recruitment advertising or to receive information on placing a banner please email