Hiller ramjet powered flying crane

[boxkite]

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".

 

[Vladimir]

This one?

 

[Stargazer2006]

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