RAeS lecture in cooperation with DGLR Hamburg, HAW Hamburg VDI & ZAL

Lecture in English

The presentation leads briefly through the A320 family tree to understand how Airbus arrived finally at the A321XLR version of its single aisle aircraft. Different development steps and selected flight test events are presented and explained together with the challenges experienced during this program.

 poster_2024_01_11_A321XLR.pdf (348 KB)

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RAeS Lecture in cooperation with HAW-Hamburg, DGLR-Hamburg, VDI & ZAL

Lecture in English

The Aeroshark riblet film imitates the shark skin effect and causes a noticeable drag reduction, which is equivalent to one percent of saved fuel based on a typical long-haul flight. This lecture gives insight into the development of Aeroshark for the Boeing 777 from an aerodynamic perspective.

Riblets reduce losses from interaction of microscopic vortices with the wall. This beneficial effect is integrated into the CFD model using extensions of the commercial solver Ansys CFX, which allows the investigation of large-scale models like an entire aircraft. The turbulence model modified for the riblet effect was verified by experimental results from DLR and DNW.

Many secondary effects became visible due to changes in the boundary layer thickness when the entire flight envelope was investigated. Hence, for certification, effects on flight characteristics, structural integrity and functionality of aircraft systems had to be considered.

Dedicated flight tests for aircraft stability and control were performed with special test programs, because here numerical tools usually show only low confidence. The enhanced fuel saving analysis is based on full flight data in contrast to single snap-shots as in standard aircraft performance monitoring. A problem is the uncertainty in total passenger mass due to the unknown mass of each individual passenger. However, an alternative approach for weight determination has been used, which is based on attitude sensors of the aircraft and reduces the uncertainty of the aircraft weight. This significantly improves the confidence of the drag analysis process.

 poster_2024_04_18_Aeroshark-3.pdf (373 KB)

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ZAL Lecture in Cooperation with DGLR Hamburg, RAeS Hamburg, HAW Hamburg & VDI

Hamburgs Drohnennetzwerk Windrove und ZAL laden ein zum Austausch über wasserstoffbetriebene Drohnen: Referenten von ZAL, Teccon und Airbus berichten über den technischen Status Quo, Zulassungsfragen sowie heutige und zukünftige Use Cases. 

 poster_2024_04_22_ZAL_Wasserstoff_hebt_ab.pdf (336 KB)

RAeS Hamburg in cooperation with HSU/UniBw H, HAW Hamburg, DGLR, VDI & ZAL

Lecture in English

Systems Engineering is a diverse field both in terms of approaches but also in impact and exploitation. Working across 12 political systems, with over 700 aircraft operational worldwide, the F-35 is a 5th Generation military aircraft which delivers impact through data. Keeping all the software intensive systems flying, through obsolescence, repair, new technology and upgrade is a configuration and logistical challenge. In late 2019, the US F-35 Joint Project Office embraced agile software delivery to reduce software cycle times from 18 months to 6 weeks. This is the story of that time.

About Dr. Gill

Kate Gill has 20 years international experience of Systems and Software Engineering, Management and Consultancy in both the Defence and Civilian markets. From 2016 – 2022, she was seconded from the Ministry of Defence to be the US lead Air Systems Integrator, based in Washington DC, for all UK software engagement on the military aircraft F-35. She has led and championed digital transformation within the Department of Defense (DoD) F-35 Agile DevSecOps (DSOP) ecosystem. Kate has been the driving force for the stand-up of the US F35 Joint Project Office (JPO) Managed Cloud which enables software on the +625 F-35 aircraft worldwide. Kate was awarded the Royal Aeronautical Society Silver Medal in 2021 and was Women in Defence Most Collaborative Award Finalist in 2020 and 2022.

She has stayed in the Civil Service and has now moved out of Defence into a digital role supporting biodiversity research at Kew Gardens as Digital Revolution Lead.

Important

• Download   poster_2024_05_16_F-35_software-2.pdf 
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RAeS lecture in cooperation with HAW-Hamburg, DGLR-Hamburg, VDI & ZAL

Lecture in English

With growing realisation of environmental issues and sustainability, we need to minimise reliance on fossil fuels. A “realistic” vision of aircraft development scenario for 2050 and beyond is imagined to be four-fold: Battery-Electric for very short ranges, Hybrid - Hydrogen Fuel cells for short ranges, Liquid Hydrogen (LH2) for the medium ranges, and Sustainable Aviation Fuel (SAF) for the longer ranges with Air-to-Air Refueling and Formation Flying.

For improving flight efficiency of airliners, ideas are towards increasing the wing aspect ratio to 14 and beyond, overcoming the adverse structural effects. Strut or Truss braced wings are being considered as in the NASA X-66. Another unconventional idea is to use flared folding wingtips that cope with gusts. Such ideas will be discussed.

Using LH2 fuel requires a great deal of unconventional thinking. LH2 being (a) cryogenic with low energy density and (b) potentially explosive, presents a challenge for designing a safe, efficient, and certifiable aircraft. The over-arching constraint is that the LH2 fuel system must be segregated from the passengers - no obstruction of exits and compliant with emergency landing requirements. Additionally, the airframe has to reasonably survive engine disc burst. This leads us to a pragmatic design of an unconventional medium range airliner concept “Gondola”. This features twin fuselages: one with passengers (160-180 seats) and the other with fuel tanks. Both fuselages are mounted on a “dry” wing of high aspect ratio.

Dr Raj Nangia graduated from University of London with BSc and PhD in Aeronautical Engineering. 

He worked on several UK and International Aircraft Projects:

Hawker Siddeley Gnat Trainer, Hawk, Concorde, Harrier, & ASTOVL Developments, EAP, Typhoon, Advanced SST, Blended Wing bodies, Civil & Military Intake Developments, HALE & UCAV's and currently Tempest.

Published 150+ papers & Presentations, several with International authors at International Aerospace Conferences.

Recently known for: Greener aviation via aircraft operations in Civil aviation, incorporating Air to Air Refuelling & Formation Flying and Alternative fuel (Liquid Hydrogen) Configurations.

 poster_2024_05_23_Unconventional_Designs.pdf (312 KB)

Further reading:

Conference paper 1

Conference paper 2

HAW lecture in cooperation with RAeS Hamburg, DGLR, VDI & ZAL

Lecture in English

The Airbus A220 is one of the most modern passenger transport aircraft in the sky. The first flight in 2013 revealed the result of 26 years of development in comparison to the well-known Airbus A320. What has changed? What has been improved? This lecture will take the audience on a typical journey in the A220 formerly known as Bombardier CSeries 100/300 from a pilot’s perspective. Throughout the various stages of a flight from preparation, take-off, climb and cruise until approach and

landing a wide range of highlights and advantages of this aircraft will be presented. Aspects such as Avionics / Flight Deck layout, Handling, Performance, Cabin, Engines and operational experience will be covered. The single aisle Airbus A220 is a

success already and the number of operators using it is growing.

For passengers it provides a spacious cabin and for pilots a modern flight deck layout and efficient aircraft to operate. How

the differences are in detail will be shown in comparison to the better-known Airbus A320 family. 

 poster_2024_06_06_A220.pdf (2,18 MB)

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DGLR Lecture in Cooperation with RAeS-Hamburg, HAW Hamburg, VDI & ZAL

Lecture in English

Flying is booming and with it the CO2 emissions. It is is not easy to decarbonize aviation. Whether electric drives, e-fuels, or green hydrogen, so far there is no convincing climate-friendly option for propulsion in air transport. And now? In addition to drastic flight restrictions, there is another way forward. Flights just need to be rerouted to fly a little higher or lower. Why? Large passenger and cargo jets are flying at an altitude of around 11000 m. In these regions water vapor condenses with soot from the engine exhaust to ice crystals forming contrails behind the aircraft. They can remain visible for many hours, when humidity is high.

Especially at dawn, dusk and at night contrails are warming, because they act like panes of glass in a greenhouse (see picture). CO2 from aircraft fuel accounts for only one third of the warming effect measured in equivalent CO2. In contrast,

contrails can cause more than half of the equivalent CO2. Experts in various fields of aviation explain unanimously that

contrail management could start now!

How is it done? Who knows what? Who is prepared? Who is against it?

 poster_2024_06_20_ContrailManagement.pdf (464 KB)

We have reserved places. Come and go as you wish.

Drinks are free for RAeS members but pay for your own food! No reservation required!

So come along and enjoy a pleasant evening on the edge of the airport watching aircraft and meeting fellow members and like-minded people. We look forward to seeing you there!

Annual Gerhard Sedlmayr Lecture 2024

Lecture in English. The lecture will be in-person only!

Please register here

18.00 Doors open. Refreshments aavailable
18.30 Start of lecture
19.30 End of lecture followed by Q&A's
20.00 Get-together with refreshments.

Yannick's presentation will revolve around aviation safety in today's context.  He will touch upon a few topics highlighting some challenges of the aviation industry and evolution of commercial flight safety in the past decades. He will also provide an insight into Airbus' purpose, safety vision, strategy & enablers; how Airbus strengthens the safety culture within & across the aviation industry; about Airbus safety governance, prevention drivers, Airbus Safety Management System (SMS).

Graduated Aeronautical Engineer in 1986 from ENAC, the French Civil Aviation School, Yannick MALINGE joined Airbus in November 1987 as Cockpit / Avionic Engineer in charge of cockpit/avionic/flight instrument systems, he was also the Chairman of several working groups with A330/A340 launching customers.

He joined the Flight Safety department in 1993 as Deputy Vice President Flight Safety.

He led various accidents/major incidents investigations and represented Airbus in International meetings such as IATA SAC.

In 1998 he joined the Flight Test Division as Head of Airbus Flight Test Technical Coordination Team during the A340 500/-600 and A319 corporate jet flight test campaigns.

Before taking over the Flight Safety Dept, he was Director Product Safety Process, in charge of reviewing the Airbus internal safety process.

In November 2003, he joined the Flight Safety department as Vice-President Flight Safety, with two main areas of focus: accident/major incidents investigation and accident prevention.

Since 1st October 2010, he has been appointed SVP & Chief Product Safety Officer.

 Poster_2024_10_08_Sedlmayr-Lecture.pdf (385 KB)

This event will take place on Monday, 2 December 2024 at the Anglo-German Club, Harvestehuder Weg 44, 20149 Hamburg. 

Reception at 18:15
Dinner at 19:00