JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY
Aeroplane engine blades. Fan blades for the Rolls Royce RB211 engine, which is used to power jumbo jet aircraft such as the Boeing 747. The blades are made of titanium. They are stacked ready for use during aircraft maintenance. The Rolls Royce RB211 was developed during the 1960s. Its large fan drives slow-moving air around the core engine, increasing engine efficiency and reducing noise.
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