Sikorsky S-70 Commercial Derivatives

[hesham]

Hi,

a Sikorsky medium helicopter project in 1980.

http://www.flightglobal.com/PDFArchive/View/1980/1980 - 0564.html?search=SIKORSKY aircraft 1980

 

[Jemiba]

Looks similar to the S-70C29, maybe a little bit larger.
(from Aviation Week 1/1974 )

 

[LowObservable]

The Marine transport project is a clear ancestor of the JHL design unveiled in 2006, with the side-mounted fans.

 

[hesham]

Hi,

here is the Sikorsky S-61N replacement contender,also in the same page;
a more info about Hughes Model-2000.
http://www.flightglobal.com/pdfarchive/view/1980/1980%20-%202721.html

 

[hesham]

Looks similar to the S-70C29, maybe a little bit larger.
(from Aviation Week 1/1974 )

Hi,

http://archive.aviationweek.com/search?exactphrase=true&QueryTerm=twin-boom&start=360&rows=20&DocType=Image&Sort=&SortOrder=&startdate=1916-08-01&enddate=2018-09-03&LastViewIssueKey=&LastViewPage=

 

[Kiltonge]

Hi,

here is the Sikorsky S-61N replacement contender,also in the same page;
a more info about Hughes Model-2000.

http://www.flightglobal.com/pdfarchive/view/1980/1980%20-%202721.html

Marketing designation was S-(X), haven't found a design number for it.

 

[hesham]

Hi,

here is the Sikorsky S-61N replacement contender,also in the same page;
a more info about Hughes Model-2000.

http://www.flightglobal.com/pdfarchive/view/1980/1980%20-%202721.html

Marketing designation was S-(X), haven't found a design number for it.

It was not in "S" series,it was in "DS" sequence,Sikorsky had two DS different series.