Page last updated at 07:20 GMT, Thursday, 28 January 2010

How to build a giant winged monster: Part two

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Over the course of the last few months, the BBC has been following researchers from the University of Portsmouth as they build five giant pterosaur models.

The life-size models of the flying giants - the largest of which will have a wing span of 10m - will eventually go on display at the Southbank Centre, London, for the Royal Society's Summer Exhibition.

Recreating replicas of the pterosaurs, which dominated the skies from the late Triassic to the end of the Cretaceous Period (220 to 65.5 million years ago), brings a whole host of scientific, technical and engineering challenges.

In the second video of this series, Professor Dave Martill heads to the Isle of Wight to enlist the skills of Bob and Jack Rushton at the Griffin hovercraft factory, who are using their knowledge of flying boats to create frames for some of the beasts.

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