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Hiller ramjet powered flying crane

boxkite

CLEARANCE: Top Secret
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I'm looking for a model number of "this huge model of a ramjet powered flying crane, proposed in 1951, evidenced Hiller's belief that larger helicopters should ultimately be powered by tip jets" - so tells the caption in John F Straubel's book "One Way Up".
 

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Stargazer2006

CLEARANCE: Above Top Secret
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I've only ever known this one as the "Heavy Lifter" and would also love to know its proper model number...
 
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