http://www.nasdaq.com/article/airbus-urges-caution-in-committing-to-higher-output-20140922-00536?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+nasdaq%2Fauthors+%28Articles+by+Author%29
Mr. Leahy said Pratt & Whitney also is working on an engine upgrade that should boost efficiency by a further 2% in 2019. The Franco-American engine joint venture is making similar plans although they aren't completed, he said.
Read more: http://www.nasdaq.com/article/airbus-urges-caution-in-committing-to-higher-output-20140922-00536#ixzz3E3T0kT4T
Les fameux 2% de gain pour 2019
Et CFM qui est aussi sur la brêche