Pour les cdes Oui Poncho si tu veux !
Mais pour la part technique, mieux vaut rester dans les rubriques , le fil du Bourget il va s'oublier dans 2 mois !
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------------------------ Remarques de CFMI , par AIN , un point ou 2 intéressants ! --------------
C'est aprés le constat
et à la demande d'Airbus (Sic les clients ) que CFM , s'est mis à jour !
Finalement, P&W et CFMI vont terminer à 16% d'écos !
2% d'écos et une dilution au taux de 11, ici !
Et l'impression que le premier LeaopX, finalement, il était désigné pour le COMAC 919, et proposé comme tel pour le A320 NEO !
Merci CFMI d'avoir rectifié !
http://www.ainonline.com/news/single-news-page/article/paris-2011-cfm-set-foranticipated-major-a320neo-orders-will-likely-mean-good-news-for-cfms-leap/
Speaking just before the show began, CFM vice
president Chaker Chahrour attacked Pratt & Whitney P&W for
spreading “myths and propaganda” about the LEAeapP-X that claimed it
will would run hotter than the PW1100G because its direct- drive fan
system would require higher turbine entry temperatures. “We absolutely
dispute this,” he told Aviation International NewsAIN. “
The LEAP Leap
X-1A will run at exactly the same temperature as today’s CFM56, which
remains on-wing for 40,000 hoursh, the equivalent to around ten years of
operations.”
Olivier Savin, also CFM v-p, admitted that the
recent critical decision to increase the fan diameter of the LEAPLeap
engine by two inches, to 78 inches (,
to meet Airbus’s demand for an
equivalent fuel burn to the PW1100G), has driven changes to the rest of
the engine. “But we weren’t yet at design freeze,” he said. “This is
part of a normal design process.
The fan is now at its optimum
diameter.”Although the change has added some weight to the
LEAPLeap engine,
the bigger fan increases bypass ratio from 10:1 to
11:1, bringing a corresponding 2 percent reduction in fuel burn. Both
engines now offer a 15- percent improvement in fuel burn improvement
over existing A320 powerplants, enabling Airbus to offer them with fuel-
burn parity.
“Customers are putting reliability at entry into
service as their highest priority,” said Savin. He insisted the
LEAPLeap-X, although a new engine, benefits from mature technologies
developed in the GE90 and GEnx programs. “We’ll also have 800 million
hours of highly reliable CFM experience by service entry,” he said.
JPRS