Aluminum-Lithium alloys will likely become the material of choice over composites for the fuselages of the next generation of narrow-body aircraft. Lighter than traditional Aluminum, the trade-offs between composites and the new lightweight alloys appear to be favoring Aluminum-Lithium.
Carbon fiber composites have made tremendous inroads on commercial aircraft, primarily due to their light weight and high strength. The Boeing 787 wide body airliner will be the first example of an aircraft fuselage and key structural components being constructed with composites, to be followed by the forthcoming Airbus A350XWB.
But those materials appear to be taking a back seat to new technology metals, particularly Aluminum-Lithium alloys, such as......
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