Des nouvelles du Regional Jet japonais.
Les parties consommation, émissions sonores du GTF sont à relever et basée sur une comparaison avec le CF34-8. Mais où sont les mesures concernant le GTF ! Pour le bilan conso, la fourchette est un peu large...
L'article sur Aviation Week :
Mitsubishi Aircraft Corp., a subsidiary of Mitsubishi Heavy Industries since April, is marching ahead with development of its $40 million, all-composite 86- to 96-seat MRJ90, despite
having only 15 orders and 10 options from All Nippon Airways since March 2008 and slim prospects for landing more orders from cash-strapped regional air carriers in the near future. Undeterred, MAC is moving ahead through the preliminary design review phase with plans to certify and deliver the aircraft by 2013.
Yosuke Takigawa, MAC’s senior vice-president for sales and marketing, said he hopes to capture one third of the estimated 3,000 70- to 90-seat regional jets that will be sold
between 2014 and 2027. Half of those aircraft are expected to be delivered in North America, with another 30% to Europe and most of the remainder to Africa, Asia and the Middle East.
“We’re actively engaged in discussions with customers. I’m very confident we can sell the aircraft,” Takigawa said. A company spokesman commented that MAC is experiencing
higher-than-anticipated visitor traffic at its chalet, indicating “increased interest” in the program, but MAC seems far from announcing more orders.
MAC claims the MRJ90 will offer substantial benefits for the environment, passengers and airline operators. Compared with the current generation of CF34-8 and -10 powered 90-seat Bombardier and Embraer regional jets, the MRJ90 promises 15% to 21% lower block fuel burn per seat mile. Each pound of fuel saved results in about three pounds lower carbon emissions.
This mainly is made possible by its super fuel-efficient 17,000 lbf Pratt & Whitney PW1217G
geared turbofan engines, along with improved wing aerodynamics and reduced fuselage wetted area.
The MRJ90 should be the greenest aircraft in class, having NOx emission 50% below ICAO CAEP 6 standards, along with 70% less carbon monoxide, 85% less hydrocarbons and 90%
less visible smoke.
Improved passenger comfort is a major goal of the MRJ90 program. The cabin cross-section is three inches wider and one inch higher than Embraer’s ERJ 190, the current class leader. This makes possible the use of 18-inch-wide seats on 21-inch centers, plus increased
elbow room in window seats and larger overhead carry-on luggage bins. In addition, MAC has designed and patented new “3D-Net” slim-line passenger chairs that it claims will offer superior seat cushion comfort, along with weight savings and better shock/vibration isolation.
Operators will also experience lower operating costs, mainly a function of decreased fuel burn and lower carbon offset costs. The PW geared turbofan engines also will make the
MRJ90 the quietest aircraft in class, resulting in 17.4 EPNdB margins below ICAO Chapter 4 noise limits.
Three versions of the aircraft are planned. The standard model will fly 870 nmi to 1,200 nmi, depending on passenger load. The MRJ90ER, with 4,000 lb more fuel, will fly 1,400 to 1,730 nmi. A long-range version with about 7,000 lb more fuel than the standard version will have as much as 2,100 nmi of range. Cruise speed is 0.78 Mach and maximum cruise altitude is 39,000 ft.
Partners in the MRJ90 program include PW for the engines, Rockwell Collins for avionics and Hamilton Sundstrand for electrical power, air management and the APU, plus AIDC for
slats, flaps, fuselage belly fairing, rudder and elevators, Parker for the hydraulic system, Spirit Aerosystems for engine pylons, Nabtesco for flight control actuators and Sumitomo for the landing gear.
The MRJ90 faces potential competition from Sukhoi 100-seat class Super Jet 100. Mitsubishi also wants to develop the MRJ70, a shortened 70- to 90-seat version of the MRJ90, if it gets a sufficient number of orders.
Takigawa claims Bombardier’s CSeries regional jets are not direct competitors because they are designed to carry 110 to 130 passengers. But historically, regional air carriers have progressed from smaller airplanes to larger jets, thus dampening enthusiasm for 70- to 90-seat replacement aircraft for CRJs and E-Jets. That doesn’t bode well for either Mitsubishi or Sukhoi, especially in light of the current slump in the airline industry.