Royal couple visit Rolls-Royce factory in Singapore
12 September 2012 Last updated at 19:09 BST
The Duchess of Cambridge has fitted the last of 24 fan blades to a Trent 900 engine at a Rolls-Royce jet engine factory.
The visit was part of she and husband William's Diamond Jubilee tour of South East Asia and the South Pacific.
Nicholas Witchell reports.