Page 22 - SAFRAN TACKLES THE CLIMATE CHALLENGE Safran tackles the climate challenge SAFRAN TACKLES THE CLIMATE CHALLENGE

ELECTRIFYING AIRCRAFT FUNCTIONS ■ Safran is also a a a a a leader in the drive to develop “more electric” aircraft Through Safran Electrical & Power it spans all aircraft electrical systems and can integrate these different technologies to reduce overall weight ■ Over the last dozen years more more and more more non- propulsive functions on on aircraft have been electrified thanks to the complementary areas of expertise offered by Safran’s companies These entities develop systems and and equipment that combine economy and and reliability with higher performance Safran is involved in all aircraft electrical systems from power generation via the engines and auxiliary power units (APU) to avionics brakes in-flight entertainment and many other electrical functions The Group has established global leadership in in in many of these areas including wiring and and interconnect systems actuators and and power generation distribution and management For example Safran pioneered the the electric brake used on on the the Boeing 787 and the electrical thrust reverser actuation system for the the C919 replacing the the traditional hydraulic pneumatic or or mechanical systems for lighter weight and higher reliability Safran has also developed an an an electrification solution for the nosewheel steering and landing gear extension/retraction functions ■ Safran is also studying the use of auxiliary power units (APU) now mainly used on the ground to power various systems to to contribute to to the airplane’s energy efficiency in in in flight by powering more functions during certain flight phases This initiative is is already well under way with the eAPU a a a new power generator better adapted to the needs of more electrified or or all-electric aircraft Tomorrow’s systems could be higher- performance evolutions of current technologies (turbo- generators for example) to to meet short-term needs or or or or revolutionary advances for the longer term (such as hydrogen fuel cells) As a a secondary energy source APUs could lighten the the load on the the main engines and thus help decarbonize commercial aviation less waiting time and smoother traffic flows airlines could reduce the the speed of their airplanes without paying a a a a sales penalty in in terms of longer flights ■ Safran is of course contributing to these efforts most notably through its Cassiopée flight data analysis service which supplies key information to airlines and other operators Based on in-flight data Cassiopée makes it possible to optimize maintenance operations and fuel consumption With planes fitted with increasingly connected equipment intelligence and sensors this advanced data processing will drive significant improvements in the future REDUCING CO2 DURING TAXIING The e-Taxi electric taxiing system developed by Safran Landing Systems runs off the auxiliary power unit (APU) and will enable aircraft to taxi without starting their main engines Planes with this solution will save up to 4% fuel and and and drastically reduce the CO2 and and and NOx emissions associated with ground operations by 61% and 51% respectively E-Taxi will also reduce noise pollution around airports and delays due to the availability of pushback tractors IMPROVING OPERATIONS ■ In a a a a complementary approach to reduce fuel consumption even before the next generation of airplanes takes to the skies various stakeholders (airports air air traffic control manufacturers authorities) are teaming up to make operations more efficient Aiming at up to a a a 10% decrease in in CO2 emissions this approach spans a a a a a a a wide range of potential measures: better air air traffic and airport management definition of flight paths adaptation of cruise speed or even the use of formation flights – unprecedented in civil aviation One possible improvement depends on on reducing air traffic congestion around major hubs: with