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Sikorsky S-57 (XV-2) single-blade rotor project

Stargazer2006

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Sikorsky's model history is pretty well known, but the undesignated projects that never left the drawing board do not appear that often.

I have a question concerning something that was called the Skyshark. And no, I didn't mean Douglas here! The name appeared, along with a logo, in Sikorsky's in-house bulletin circa 1971, with no further explanation. I attach the logo for reference. Could it be a naval helicopter project? Or a missile of some kind? I must say I never found anything else on the subject...

Incidentally, I find a reference for an article entitled "The Incredible Skyshark--First Amphibious Jet" in the Apr. 1971 issue of Popular Mechanics. Wonder if this could be related to it?
 

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overscan

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Popular Mechanics article here. Doesn't seem to be Sikorsky related.

http://books.google.co.nz/books?id=qtcDAAAAMBAJ&pg=PA77&dq=The+Incredible+Skyshark+First+Amphibious+Jet&client=firefox-a#v=onepage&q=The%20Incredible%20Skyshark%20First%20Amphibious%20Jet&f=false
 

Stargazer2006

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Thanks for the link! Didn't know that old Popular Science issues were available on line...

Obviously this Skyshark is NOT a Sikorsky-related design. Sikorsky's Skyshark must have been another project... (unless they provided their engineering experience to the building of the mock-up, but I don't really see this happening, considering they hadn't done flying-boats in three decades!)
 

Dynoman

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Stargazer, the Skyshark may have been the XV-2 (XH-36) single bladed aircraft, but it was cancelled before any hardware was developed. It was a study project during the Korean War. Cancelled 1960.



Note: Only assumption is that the fixed wing Sky Shark a was a development at the same time as the XV-2. Quite a stretch.
 

fightingirish

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Another picture of the proposed Sikorsky S-57 (XV-2/XH-36)

Source (found by member hesham :) ):
http://books.google.com.eg/books?id=eE-trX3XZawC&pg=PA75&dq=sikorsky+S-57#v=onepage&q=s-57&f=false
Maybe someone can attach a screen shot.
 

hesham

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Hi,

here is the Sikorsky S-57 with anther Sikorsky projects.
 

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Arjen

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Some data on the S-57 convertiplane project:
It utilises a single-blade counter-balanced rotor to take off as a helicopter. When sufficient forward speed has been built up for the fixed wing to take over, the rotor is stopped and retracted into the top of the fuselage. The S-57 has obvious possibilities as a high-performance tactical strike or reconaissance aircraft. Its power plant is a Pratt & Whitney JT-12 turbojet.
Source: John W.R. Taylor, Helicopters, Ian Allen Ltd, 1960. A 64-page booklet I dug up years ago.
 

Stargazer2006

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I know that the following is not exactly in its proper place here, but since it's not MY work I can hardly feature it in the "User artwork" section... and I just couldn't resist sharing it with those who haven't seen it yet!

A very talented Belarussian called Alexander ("slava_trudu" on the What If forum) produced in 2008 this magnificent set of fake illustrations of the XV-2 using a scale model he had built as a basis.

I'm enclosing the photos of his model in this post. More pics in the next...

 

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Jos Heyman

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Beautiful pics, and I bet you, in 50 years time there will be some historian who will declare them as 'the real thing'.
Oh well, unfortunately I can be fairly sure that I will not be around to correct them at that time.
 

Jemiba

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In 50 years ??! We can be glad, when they not already show up on a site, we can only look
at the pictures, but not read the text. Probably we should add a rule to the forum rules,
saying that all artwork, that could lead to deception has to carry a "FAKE !" watermark ... ;)
A little bit of nitpicking (not too serious !): Perhaps the lights should show a more "dynamic"
flightpath, no so "heli-like" ? ;D
 

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Stargazer2006

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Fascinating! This looks a lot more like a "Skyshark" than the S-57... (see the first post in this topic).

I've tried to isolate and enlarge that beast:
 

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Grey Havoc

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A proposal for the DASH requirement?
 

hesham

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hesham said:
Hi,

here is the Sikorsky S-57 with anther Sikorsky projects.
A clearer view;

http://archive.aviationweek.com/search?exactphrase=true&QueryTerm=crane&start=80&rows=20&DocType=Article&Sort=&SortOrder=&startdate=1944-11-27&enddate=1980-10-23&LastViewIssueKey=&LastViewPage=
 

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