Sister Ship to 
Tell me his nickname is 'Lemon' 
Our most frequently asked question, since starting trials with UK F-35, is: "what is that open door?" AKA the 'scoop' or 'toilet seat', the Upper Lift Fan Door is explained by one of our embarked F-35 pilots, Wing Cdr Adam Curd RAF #WESTLANT19 @RoyalNavy @RoyalAirForce #UKF35pic.twitter.com/dvZkcwYO9L
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Yours is, I guess.
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British engineering designed the world's first vertical take off plane, is this an American take on that?
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The harrier II (RAF harrier gr5 and above), aka av-8b, was an entirely new design built primarily by the US, so not the first American led vtol project
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Excellent explanation, thank you.
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British accent !
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Nicely explained Curdy!
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Very nice thanks for that
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And the other doors on the top are to provide extra air to the main engine, so that it gets sufficient to keep running when air is no longer being forced through the main intakes by its forward motion.
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simples
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