GE Aviation proposed the GE9X with a 128 in (325 cm) diameter fan, a 10:1 bypass ratio, a 60:1 overall pressure ratio, and 27:1 HP compressor ratio for a 10% fuel burn reduction.[5] 参考译文:早期的777-200LR和-300ER型号采用了通用电气GE90-115B发动机,具有42:1的总压比和23:1的高压...
During flight testing, the 777-300ER demonstrated a 2% better fuel burn than expected, and further engine, wing, and weight modifications produced an added 1.4% reduction in fuel consumption. Early 777-300ER customers ordered modification kits to incorporate these enhancements to in-service aircraft...
Comparing the performance of the two aircraft, we can see that their sizes are essentially identical. However, that's where the similarities end. The A350-900ULR outperforms the 777-200LR where it matters most: Range and fuel burn, with the Airbus flying much further while burning less fuel...
Destined to carry on the great success of the Boeing 777-300ER, the 777X offers airlines with a fuel burn reduction of around 20 percent. Additionally, passengers can enjoy a roomier cabin with larger windows. Boeing 777X economy cabin ...
Further refinement is given by an aircraft- and temperature- matching function to tailor the fuel consumption to that of a Boeing 777. Due to the significant dependency of emissions on the thrust and fuel burn, this model portion was validated with a flight data recorder extracted from 133 ...
The 777-8X will trim the seat count to 350 passengers but with a maximum range over 17,220km (9,300 nautical miles). In both cases, improved design and new-generation engines will see the planes burn less fuel than today's 777s. ...
Morris also thinks that there could be issues around residual values: “777-300ERs will typically be on 12-year finance terms or operating leases, so how will Boeing incentivise operators to keep those last-off-the-line -300ERs for 12 years in the face of their fuel-burn penalty ov...
The 767-400ERX would offer the capacity of the Airbus A330-200 with 3% lower fuel burn and costs.[158] Boeing cancelled the variant development in 2001.[64] Kenya Airways then switched its order to the 777-200ER.[181] 参考译文:7月推出的远程-400ERX将拥有更强的机翼、机身和起落架,最大...
A step climb or multiple step climbs of 2,000 feet altitude may be used when beneficial to minimize fuel burn. Fixed Allowances: For the purpose of this guarantee and for the purpose of establishing compliance with this guarantee, the following shall be used as fixed quantities and allowance...
Flying up to 45.000 feet (beyond the 777’s official maximum altitude) may have knocked out the passengers on board so that they were unconscious for at least a little time. (The pilot(s) in control may have taken the oxygen masks before going up so high.) Maybe then someone onboard ...