IAE V2500

Embraer has selected a new member of the International Aero Engines (IAE) family of turbofans to power the KC-390 military airlifter, ending a protracted bidding process and launching the V2500 into the military market.
The engine maker, a joint venture between Pratt & Whitney, Rolls-Royce, MTU and Japan Aero Engines, confirms the KC-390 will be powered by an engine called the V2500-E5. In an emailed response to questions, IAE described the engine as commercially available and within the certificated thrust range of 30,000lb (133kN).
However, it was not immediately clear what was meant by commercially available. IAE advertises three models of the V2500 - the A1, A5 and D5 - but not the E5.
The E5 variant will require no modifications, but only slight alterations to adapt the turbofan for a military application, IAE says.
To support Embraer's timetable IAE must deliver the first test engines in 2013, followed by production engines in 2015.
The selection is a key victory as IAE works to keep the V2500 relevant in a decade that will usher in the next generation of turbofans - the Pratt & Whitney PW1000G Geared Turbofan (GTF) and the CFM International Leap-X. Embraer selected the V2500 over the CFM56.
Until Embraer's selection announcement, the engine supplier was the last missing piece in establishing the KC-390 supply chain in the development phase. The company had targeted engine selection in the second quarter, but acknowledged in April that it could stretch into July without impacting the overall schedule.
The Brazilian Air Force launched the KC-390 in April 2009, signing a $1.3 billion contract for Embraer to launch the development phase. Last year, the air force committed to purchase 28 aircraft after 2015.
Embraer has since received commitments - but not orders - for another 32 aircraft from five other countries, including Argentina, Chile, Colombia, the Czech Republic and Portugal.

Admin a écrit:
Pour 28 avions commandés fermes et 32 intentions de commande

Poussée inférieure à 30 000 lbs à priori

La version -E5 doit être l'homologue du -A5 adapté au monde militaire ...dispo pour les essais en vol en 2013 à priori

Question : qui fait la nacelle ?

International Aero Engines (IAE) will begin to consider a “SelectThree” variant of its established V2500 turbofan around the end of 2011 as a potential follow-on to the SelectTwo version unveiled earlier this year and launched by Middle East operator Gulf Air. The powerplant manufacturers making up the group have extended their partnership agreement to 2045 and Asian carrier China Southern has become the largest V2500 customer.
Ian Aitken, president and chief executive of the partnership, which comprises Japanese Aero Engines, MTU Aero Engines, Pratt & Whitney and Rolls-Royce, told AIN that he expects to hear from engineers “in six months’ time” about possible further V2500 enhancements. He said IAE investment is not constrained to any particular area of engine operations and that improvements could come in soft- or hardware changes or in, say, maintenance costs. “I’ve said, ‘Tell me what is possible’ and then I’ll see the business case. There are a lot of technologies available from each partner.”
A new V2500 customer, Bahrain-based Gulf Air, has placed the first orders for the SelectTwo version, which will power six Airbus A321s. IAE and Airbus are engaged in a “rigorous” SelectTwo flight-test, validation and certification program to be completed later this year. The upgrade–comprising an electronic engine-control software upgrade and a new data-entry plug, and available as a V2500-5 SelectOne sales order option–is planned for service-entry in 2013.
SelectTwo aims to provide 0.58-percent fuel-burn savings, compared with SelectOne engines, for a 500-nmi A320 mission. IAE said that for a 10-airline fleet making 2,300 flights per aircraft per year, this equates to savings of $43,000 per aircraft per year at current fuel prices and 148 metric tons of carbon dioxide per aircraft per year.

Although only a handful of operators, most notably Lufthansa, have mixed CFM and V2500-powered A320 fleets, the performance of the IAE engine makes it a popular option for the A321. According to IAE, for a typical 2-hr. flight, IAE estimates 2.5-4% lower fuel burn than the equivalent CFM56 on the A321. This appears to be borne out in terms of utilization and backlog. Of the three A320 models, the V2500 has seen the most success on the stretched Airbus with roughly 65% of the combined in-service fleet and backlog, against 48% for the A320 and only 40% for the A319

Its SelectTwo enhancement should make its operational debut in the
first quarter of 2014. This promises a fuel burn reduction of 0.5% over
the SelectOne model introduced in 2008 and longer time on- wing between
overhauls.

The SelectTwo package has mostly been led by software tweaks,
including optimised performance for the climb and descent portions of
the flight, whereas its predecessor was more hardware-based, featuring
new turbine blades and a re-designed high-pressure turbine.

Meanwhile, IAE continues to work with its airline customers to define
the requirements for the SelectThree improvements scheduled for service
entry around mid-2015.

International Aero Engines (IAE) is gearing up to build the first set
of V2500-E5 turbofans for Embraer’s KC-390 multirole tanker transport
as part of eventual plans to deliver around 20 engines per year.
The
multinational engine maker will begin assembly in the first half of
2013 and deliver the first units in the fourth quarter. Three engines
are scheduled for delivery by year’s end with a further three by the end
of January 2014. Flight tests of the first aircraft are due to begin
later in 2014, with production engine deliveries starting in 2015.
Embraer,
which has just completed the critical design review of the aircraft,
says it is on track to deliver the first units in late 2015 or early
2016. Brazil, along with Argentina, Chile, Colombia, the Czech Republic
and Portugal, have issued letters of intent covering 60 aircraft.
IAE
President Jon Beatty says the consortium partners are committed to a
steady 20-plus year production run to support the KC-390.
The
V2500E5 engine variant, which will be 95% common with the current
V2500-A5 Airbus engine, will be supplied at the rate of 20 per year to
support Embraer’s planned annual output of 10 KC-390s. Embraer estimates
the overall potential market for the C-130-sized aircraft is around 700
units.