Hughes XH-17 Helicopter Early Concept

[hesham]

Hi,

there is the Hughes XH-17 helicopter early concept,please note the two
ramjets in the blade tips.

http://www.flightglobal.com/PDFArchive/View/1949/1949%20-%201260.html

 

[hesham]

Hi,

also early drawing to it.

nevadamusic.com, music and histories by CW Bayer

www.nevadamusic.com

 

[hesham]

A hypothetical artist drawing to it;

Sikorsky S-64A Sky Crane

Sikorsky S-64A/CH-54 Sky Crane: in-depht article with historical and technical information

www.heli-archive.ch