Concorde G-AXDN Droop Nose

Friday, 24 October 2014 10:02:48 Europe/London

Exactly 11 years after the last flight taken by the famous Concorde, Duxford Aviation Society, owners of the British Airliner Collection, hoped to improve their display of Concorde 101 G-AXDN at the Imperial War Museum. In response, Heritage Concorde proposed making her the first UK Concorde since 2003 to be able to “droop” her nose. Contacting Hydraulics Online, Heritage Concorde asked if we could help out on “Project Salute” – we were definitely up for the task!

The final droop of the nose in the 1980’s using the emergency free fall system after an attempt to use the aircraft’s hydraulic system had failed. There was clear support for the latest project; however there was also a great deal of concern and much work involved to ensure there would be no damage to G-AXDN and that all Health & Safety requirements would be met.

Our team were provided with the technical specification for the Concorde nose systems by Heritage Concorde and then undertook the necessary preparatory work needed to inspect the associated aircraft wiring and nose/visor control systems. Two hydraulic systems are used to operate the nose - green being the normal and yellow the standby; only the normal system was to be used, segregated from all of the other hydraulic systems on the aircraft.

A bespoke hydraulic power pack was designed and built by Hydraulics Online which could then be connected to the existing nose hydraulic systems and allow the visor and nose to be lowered and raised at any time; safety features included a pressure gauge and a hydraulic pressure valve. Meanwhile the Heritage Concorde team began the diligent task of cleaning and preparing the existing nose systems and mechanism and examining the electrical controls for the nose within the cockpit.

The hydraulic power pack was put through a number of rigorous tests before it was connected to the nose system; once installed, the specialist hydraulic mineral oil was added, before bleeding and flushing the system through to remove any remaining debris.

As they had been idle for so long, the aircraft hydraulic systems needed to be cleaned thoroughly. After 18 months the project had been accomplished; G-AXDN is now the only Concorde in the UK with an operational nose and visor. Graham Cahill, Director of Projects at Heritage Concorde commented: “It has been a real pleasure dealing with the team at Hydraulics Online; they have been very accommodating throughout the project, giving expert advice and technical support… We really couldn’t have asked for more.”

Concorde G-AXDN Droop NoseG-AXDN’s droop nose was revealed at the Imperial War Museum, Duxford on 24th October, 2014 by David Garside, Chairman of Duxford Aviation Society – timed to coincide with, and “Salute”, the 11th anniversary of the last commercial flight by Concorde. He added: “It is 37 years since Concorde G-AXDN was flown to Duxford and since the hydraulic and electrical systems were last in operation. The restoration projects have required the servicing and overhaul of many intricate components and considerable patience and determination has been required over a two year period to ensure their successful completion… We gratefully acknowledge the generous sponsorship and support from Hydraulics Online Ltd and for designing and supplying the hydraulic power pack.”

The Managing Director of Hydraulics Online Ltd, Mark Tonks said: “We were absolutely thrilled when Heritage Concorde asked if we could help on “Project Salute”. Our customer base is global, we’re always involved with a vast range of projects and systems design work and we deal with some big household names… but Concorde is in a different league. Seeing G-AXDN’s nose and visor moving again, knowing that we were part of the team that made it happen, is very special indeed.”

The Concorde G-AXDN and her droop nose unveiling made the headlines and was featured on the BBC News and ITV News as well as being reported on by local and regional press.

Why not go and visit Concorde 101 G-AXDN and see her amazing droop nose and visor for yourself? Click here for opening times and directions to the Imperial War Museum, DuxfordIn the meantime, you can see footage of the nose and visor moving here: Video clip one and video clip two

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