According to Global News Embraer partners with Alcoa to improve planes aimed at Bombardier's CSeries.
From the article Embraer announced
Thursday a technology sharing agreement that will use Alcoa's proprietary aluminum alloys, advanced design and manufacturing techniques, and its fastener technologies to support the development of a new fuselage and wings for its current family of aircraft.
Here is a link to the news article: http://www.globalnews.ca/money/embra...r39s+cseries/6442524155/story.html
Embraer is the first planemaker who will take advantage of the new alloy and advanced structural technologies that will reduce weight. According to Alcoa a plane built arround this new technology will have 10% weight savings, and up to 30% lower maintenance cost. Alcoa went as far in june to suggest that their new technology would make a plane 12% more efficient on top of 15% that is offered with newer engines.
Here is a link to the Alcoa press release: http://www.alcoa.com/global/en/news/...eID=20110609005855en&newsYear=2011
The new alloy and technology from Alcoa seems so promising that I am sure other airplane makers will follow.