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Old Aug 03, 2010, 04:42 PM
davylah is offline
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Ex RAF Techie
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North East England
Joined Jun 2010
765 Posts
Yes, the good old BERP tips.

By the way, before anyone mentions the Sikorsky X2, it's not a helicopter, it's a gyroplane. It's also nothing new, look at the British 'Fairy Rotodyne' from the 1950s.
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