Seville. Common, rather than isolated, European defence of its skies and humanitarian missions will be a reality, with the development of the 21st Century tactical and logistical Airlifter, the A400M by Airbus Military.
The A400M has the capability to fly distances up to 4,700 nm / 8,700 km, at a cruising altitude of up to 37,000 ft, and at a speed of up to Mach 0.72, very similar to that of a jet liner. This gives it the potential for strategic/logistic missions. Flying faster and higher, it can respond more rapidly to crises, because greater distances can be flown in a one crew duty day.
The new aircraft is hence regarded as much more efficient than its predecessors. Also, as it can fly higher, it can cruise above turbulence, resulting in less fatigue for the crew and passengers or troops alike.
Addressing a group of international journalists recently during a Trade Media Briefing at Sao Paulo, Seville, Spain, Rafael Nogueras Cebrero, Head of A400M Final Assembly Line and Flight Test Centre, announced that the production of first customer aircraft MSN 7 had been launched and will be on the FAL by the end of 2011. Eight countries, eight operators and 184 aircraft are providing a strong customer base for a smooth start of the production line.
A400M can perform missions which previously required two - or more - different types of aircraft, and which even then provided an imperfect solution.
Its fuselage’s external width of 5.64 metres / 18 ft 6 in is equal to that of the A330/A340 wide-body. The inside usable width of four metres / 13ft, height of up to four metres / 13ft, and usable length of nearly 18m / 59ft, allows it to carry numerous items of outsize cargo including, for example, an NH90 or a heavy lift CH-47 Chinook helicopter, or two Stryker infantry carrier vehicles (ICV) for military purposes.
It can also carry a semi-articulated truck with a 6m / 20ft container, or a rescue boat, or large lifting devices, such as excavators or mobile cranes needed to assist in disaster relief, informed Rafael.
Furthermore, the A400M is the only airlifter that can fly these items directly to the site of action thanks to its unique landing characteristics. With its 12- wheel main landing gear designed for operations from stone, gravel or sand strips, its efficient absorption of shock-loads into the airframe structure, and its minimised risk of foreign object damage, the A400M is able to land on, and take-off from, short, soft and rough unprepared airstrips meeting the CBR6 standard.
Once on the ground, the A400M is designed for very rapid and autonomous cargo unloading or loading without any specialized ground support equipment.
Equipped with on-board winches and a crane, the cargo hold is optimised for single loadmaster operation from a computerised workstation, where the loadmaster can pre-plan loading from a loads data base. So, by minimising the time on the ground, the A400M’s systems also reduce the aircraft’s vulnerability to hostile action.
Being able to fly at higher altitudes and faster, it can also be configured into a tanker aircraft to refuel military fast jets (fighters) and other large aircraft at speeds of up to 300kt indicated air speed (IAS) at 25,000ft. But because of its low speed performance, it can equally well refuel helicopters at 110kt up to 5,000ft.
Refuelling can be done either through two wing-pod hoses or through a centre-line fuselage refuelling unit. Its built-in air-toair refuelling capability allows it to be rapidly re-configured to become a tanker. It can therefore be easily adapted to rapidly changing operational scenarios, being able to perform very different types of missions, as needed. The aircraft itself can also be refuelled in flight.
A400M has been specifically designed for low detectability, low vulnerability and high survivability, giving it excellent self-protection. With clean and minimised infra-red signature engines, highly responsive fly-by-wire flight controls, four independent control computers, comprehensive defensive aids, cockpit armouring and damage tolerant controls, the A400M is hard to find, hard to hit and hard to kill. As for its “down-time”, the A400M is conceived to be what the ccompany says “the most reliable airlifter ever.”
It needs only 84 days of scheduled downtime maintenance in 12 years, Rafael informed India Strategic. The nations in the project, which is otherwise delayed, include Belgium, France, Germany, Italy, Luxemburg, Portugal, Spain, Turkey, and the United Kingdom.
Meanwhile, the aviation manufacturers of these countries have also started working on the concept of a new military transport under the designation of “Future Large Aircraft” (FLA).
They involve Aerospatiale in France, Deutsche Aerospace (DASA) in Germany, British Aerospace in the UK, CASA in Spain, the industries of Belgium and Luxemburg which joined forces under the FLABEL grouping, as well as Alenia in Italy, OGMA in Portugal, and the Turkish Aerospace Industry (TAI) in Turkey.
An initial call for tender was launched by the European Nations in 1998, to which the FLA grouping responded in 1999. After thorough examination of the various options which included other existing products and even co-operation with nonwest- European manufacturers, the FLA proposal was selected by these countries in July 2000. The initial commitment was for 288 aircraft from all the eight countries.
On 21st December 2001, an initial contract was signed for a total of 197 A400Ms, as the aircraft was to be called from then on, by the European nations, but without Italy which had withdrawn from the launch-nations group. The German order for 73 aircraft was subject to hand-written budget approval, which was eventually obtained at the beginning of 2003, but for only 60 aircraft.
Meanwhile, Portugal had also withdrawn from the initial group. The final contract for 180 aircraft was signed with OCCAR, representing Belgium, France, Germany, Luxemburg, Spain, Turkey, and the UK on 27th May 2003. This was to be followed by an order for four by Malaysia in December 2005.
Orders which stand to date are total 184 from 8 countries (Germany 60, France 50, Spain 27 ,UK 25,Turkey 10, Belgium 7 and Luxemburg 1. Malaysia has ordered four of these and is the only Asian client yet).
The A400M can also very easily be converted into an aerial refuelling tanker. Because all provisions are built into the airframe, it takes under two hours to convert the A400M from an airlifter into a two-point tanker aircraft. Hard points, fuel lines and electric connections are already built into the wings. The two refuelling pods under the wing can provide a fuel flow of up to 1,200 kg / 2,645lb per minute. The centre-line fuselage refuelling unit provides a fuel flow of some 1,800 kg /3,968 lb per minute. Three video cameras can be installed if desired, to monitor the refuelling from the wing pods and the centreline unit.
The A400M carries up to 64,000 litres /14,078gallons of fuel in its wings and centre wing box. Two additional cargo hold units can also be installed, providing an additional 7,200 litres /1,583 gallons of fuel each.
The fuel carried in the extra tanks can be of a different nature to the fuel in the main tanks. This enables the A400M to cater for the needs of different types of receiver aircraft. Also, because of its low fuel consumption, the A400M can do a 4-hour mission while off-loading some 35 tonnes /78,400 lb of fuel. Larger aircraft can also be refuelled by the A400M.
Rafael said that the A400M is the only tanker which can refuel the entire range of military aircraft at their preferred speeds and altitudes. This is because it can fly both at the low speeds and altitudes (105 to 115 kt) typically required to refuel helicopters, as well as at speeds of 280 to 300 kt and altitudes of around 25,000 ft which are typical for fast jets, such as fighters or large aircraft.
The A400M can accommodate up to 116 troops sitting face to face, alongside the fuselage and backto- back along the centre line of the aircraft. Its wider fuselage which provides more space between the rows, it can carry the same number of fully equipped paratroopers with their chutes and related equipment. They can be dropped in less time over a limited area, allowing them to swiftly regroup and to be quickly operational.
But above all , the A400M permits two paratroopers to jump simultaneously either through the cargo door or through the two lateral doors. Special forces can also be dropped from altitudes as high as 40,000 ft.
Another key feature of the A400M is its computerized “fly-by-wire” flight controls already widely used on other civil transport aircraft, starting with the A320. Replacing the conventional cables and pulleys by electrical wires linked to four independent flight control computers which send signals to actuators, not only reduces weight, but also maintenance time. This also gives a much greater precision to the commands. The fly-by-wire controls permit the implementation of “flight envelope protection” which, by preventing the aircraft from stalling, allows the pilot to achieve optimum performance in a critical escape manoeuvre by simply pulling the full stick back. The fly-by-wire system then manages the whole aircraft configuration accordingly, without the pilot having to intervene.
One of the key elements to ensure the versatility of the A400M was the selection for the aircraft of an allnew, specifically designed three-shaft turboprop engine with eight bladed propellers. The 11,000 shp TP400 developed by EuroProp International (EPI), a consortium comprising Rolls Royce, Snecma, MTU and ITP, is the most powerful turboprop ever built.
Ed Strongman, the Chief Test Pilot Airbus Military told India Strategic that till 19thMay 2010, the A 400M had undergone 43 test flights and 165 hours of flying. He also said that an initial problem of the brakes had been rectified to achieve perfect landing.
The aircraft’s flight campaign is progressing well at two Flight Test Centres at Touluse in France and at Seville, said Strongman.
La capacité en fuel ressort à 64 000 l interne soit 51.2 t à la densité standard utilisée par airbus (0.
, un petit plus que ce que l'on retrouve ailleurs (wikip notamment) qui donne 700 kg de moins
Je cherchais l'info sur le diamètre du fuselage... parce que 4 m de largeur interne c'est en fait la charge cargo... en réalité la largeur interne est plus grande
http://www.flightglobal.com/articles/2010/01/21/337440/pictures-uk-tests-load-capacity-of-a400m.html