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Showing posts with label
Armstrong Siddeley Sapphire
.
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Showing posts with label
Armstrong Siddeley Sapphire
.
Show all posts
Saturday, February 25, 2012
Rolls-Royce contra-rotating fan (concept) | Armstrong Siddeley Sapphire
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Armstrong Siddeley Sapphire Rolls-Royce contra-rotating fan (concept) The Sapphire originated in 1946 with the M...
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