HTF7500E Engine Expected To Reduce Nitrous Oxide Levels By Up
To 25 Percent
Honeywell has reached a flight testing milestone on what it says
its most energy efficient engine ever, the HTF7500E. The engine
powering Embraer’s Legacy series 450/500 business jets has
completed approximately 20 flights and more than 140 test hours on
Honeywell’s B757 flying test bed. With this milestone, the
engine is on track to certify in 2012 on the Embraer platforms.
Embraer Legacy 450/500
Honeywell is driving innovation across key performance points,
with the HTF7500E including reduced fuel consumption, reduced
engine mass and decreased emissions – all of which are
critical areas of demand among customers. “Building on the
phenomenal success of the HTF7000 series engine and its
impressive reliability level of more than 99.96 percent over one
million flight hours, Honeywell’s new HTF7500E engine is set
to follow suit,” said Ron J. Rich, vice president of
propulsion at Honeywell Aerospace. “Importantly, it will
provide the same reliability while significantly increasing energy
efficiency and reducing emissions. All in all, it has exceeded our
expectations for performance, reliability, emission reductions and
sound output.”
Test flights will begin on Embraer’s Legacy 450 and 500
jets during the second half of this year.
Honeywell B757 Test Bed Aircraft
To support the industry’s commitment to environmental
efficiency, the HTF7500E features Honeywell’s Single Annular
comBustor for Emissions Reduction (SABER) that reduces nitrous
oxide emissions by up to 25 percent, to a level well below current
International Civil Aviation Organization (ICAO) limits. The
HTF7500E produces an acoustic signature well under prevailing
regulatory noise limits to ensure that noise disruption during
take-off in populated areas is minimized.
“Honeywell’s HTF7500E provides a best-in-class
propulsion system for our Legacy 450 and 500 jets,” said
Mauricio Alemeida, vice president, Programs- Executive Jets,
Embraer. “Its advanced thrust combined with innovative
emission reducing capabilities will deliver the strong and reliable
performance we need for our world-class jets.”
The HTF7500E engine is configured with four axial compressor
stages, a single centrifugal compressor, an effusion-cooled
combustor, a two-stage high-pressure turbine and a three-stage
low-pressure turbine driving a high-efficiency 34.2-inch fan and a
bypass ratio of 4.2..The engine will be offered with an
on-condition maintenance program from its first day in service.
Honeywell is also supplying other components and systems for the
Legacy 450 and Legacy 500 series aircraft. These include
Honeywell’s Ovation Select Cabin Management System, 36-150
Auxiliary Power Unit, Environmental Control System and electronic
fuel controls.