United Airlines' Boeing 777 fleet is to be
modified with a Performance Improvement Package that will result
in greater fuel efficiency, along with reduced emissions.
The package, to be installed on 52 United
Airlines 777s, is expected to reduce fuel spending per airplane by
about $200,000 annually (assuming $100 per barrel crude oil
prices), according to Boeing estimates.
"We appreciate Boeing's continued efforts to
make existing aircraft more fuel efficient," said United Fleet
Vice President, Ron Baur. "We are very focused on improving fuel
efficiency in our fleet as a natural hedge against rising fuel
Continental Airlines, which merged with United
Airlines last year, was among the first airlines to sign up for
the package, agreeing to outfit 20 777s in 2007.
The 777 Performance Improvement Package improves the airplane's
aerodynamics through a software change to enable a drooped aileron, a ram air system improvement and the installation of
improved wing vortex generators.
Eighteen airlines with
fleets totaling more than 350 airplanes have ordered the 777
Performance Improvement Package, which is focused on the 777-200,
-200ER (extended range) and -300 models, accounting for more than
500 airplanes. The upgrades are incorporated in the newer 777
models, the 777-200LR (longer range), -300ER and Freighter, during
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