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Feathered propeller on the outboard TP400 turboprop of an Airbus A400M. On most variable-pitch propellers, the blades can be rotated parallel to the airflow to stop rotation of the propeller and reduce drag when the engine fails or is deliberately shut down. This is called feathering, a term borrowed from rowing. On single-engined aircraft ...
The TP400 large propeller would still have enough ground clearance with the engine installed on the A340 low-mounted wing. [13] A400M showing its counter-rotating propellers on each wing. A small difference in the propeller gearboxes is required to make them go in opposite directions, namely the addition of an idler gear in two of them.
The Airbus A400M Atlas [nb 1] is a European four-engine turboprop military transport aircraft.It was designed by Airbus Military, now Airbus Defence and Space, as a tactical airlifter with strategic capabilities to replace older transport aircraft such as the Transall C-160 and the Lockheed C-130 Hercules. [3]
The Airbus A400M Atlas is a military aircraft featured in a Tom Cruise stunt. The UK's Royal Air Force has used it to send humanitarian aid to Gaza and evacuate civilians from Kabul.
This means that the propeller moves more air per revolution and allows the engine to spin slower while moving an equivalent volume of air, thus maintaining velocity. Another use of variable-pitch propellers is to feather the blades of the propeller, in order to reduce drag. This means to rotate the blades so that their leading edges face ...
A400M, counter-rotating propellers on each wing; the most important yawing moments after failure of engine 1 If an outboard engine fails, such as engine 1 as shown in Figure 2, the moment arm of the vector of the remaining thrust on that wing moves from in between the engines to a bit outside of the remaining inboard engine.
The first engine run with propeller took place in 2006, with the first flight of the TP400 aboard a testbed taking place in 2008. The first flight of the A400M took place in 2009. [10] Two years later the TP400 engine received EASA certification. [11] The first engines were delivered in 2012. The French Air Force began using the A400M in 2013. [4]
Maximum efficiency is reduced as disk loading is increased due to the rotating slipstream; using contra-rotating propellers can alleviate this problem allowing high maximum efficiency even at relatively high disc loading. [7] The Airbus A400M fixed-wing aircraft will have a very high disk loading on its propellers. [8]