Hughes XV-9A and related Hot Cycle Projects

[Stingray]

Goodness gracious me. This is SWEET!!! Thanks a lot for sharing Travis, it's appreciated. Have we seen the end of the brochure? Perhaps now we could turn it into a downloadable PDF?

You're very welcome! Yes, this is the end. I want to apologize for the huge sizes, but most were actually larger when I dug them from my collection. I had to resize specially for upload here.

Thanks, Paul, for the PDF version!

 

[hesham]

Of course we know this aircraft very well,

but this aircraft was called Hughes Model-485 CRA (Composite Research Aircraft).

http://www.dtic.mil/dtic/tr/fulltext/u2/684315.pdf

 

[hesham]

I found a report on DTIC,spoke about Hughes Model-285,


http://www.dtic.mil/dtic/tr/fulltext/u2/621684.pdf

 

[Jemiba]

A perspective drawing of the Hughes H-385 from "Der Flieger", December 1964;

 

[hesham]

Very nice drawing my dear Jemiba.

 

[jsport]

A perspective drawing of the Hughes H-385 from "Der Flieger", December 1964;

WOW, what a find..thank you for sharing.

 

[Jemiba]

From "Der Flieger", february 1966, a picture of the layout shown in the very first post
of this thread:

 

[jsport]

From "Der Flieger", february 1966, a picture of the layout shown in the very first post
of this thread:

WOW, thanks again, what a find. Makes one sad to see the words Hughs Tool and what could have been though.

 

[hesham]

A big surprise to all members,


this Hughes City Centers Airlines was called Hughes H-350 or Model-350,please see;


http://books.google.com.eg/books?id=n10rAwAAQBAJ&pg=PT121&dq=HUGHES+HEAVY+HELICOPTER&hl=en&sa=X&ei=dEYMVOeDLufC7AbYjIHoDw&ved=0CBoQ6AEwAA#v=onepage&q=HUGHES%20HEAVY%20HELICOPTER&f=false

 

[hesham]

My dear Skyblazer,


if you can do it again,and collect those pieces,you will make my day,here is a developments
of Hughes hot-cycle concept;


http://www.dtic.mil/dtic/tr/fulltext/u2/651217.pdf

 

[hesham]

And;

 

[jsport]

Thank you Dear Hesham for the posting.

 

[Stargazer]

if you can do it again,and collect those pieces,you will make my day

Ah, but I used to have a lot more time on my hands than I have now, unfortunately. The Sikorsky plan was done back in 2012.
Nowadays all the spare time I have goes into my new website, which I have been preparing for several months now...
So, no, I won't be able to "collect the pieces" for the time being, sorry. Maybe someone else can?

 

[hesham]

OK my dear Skyblazer,


no problem,maybe someone can help.

 

[RAP]

Found on EBAY today.
http://www.ebay.com/itm/1966-Hughes-Hot-Cycle-Multi-Purpose-Aircraft-Helicopter-brochure-catalog-ARMY-/331585659370?pt=LH_DefaultDomain_0&hash=item4d340ba1ea

 

[Stargazer]

Splendid! Thanks for sharing.

 

[hesham]

Hi RAP,


looks like Hughes H-350.


http://www.secretprojects.co.uk/forum/index.php/topic,4875.msg230468.html#msg230468

 

[hesham]

Hi,

http://archive.aviationweek.com/image/spread/19651115/46/2

 

[Triton]

Source:
https://www.ebay.com/itm/VINTAGE-HUGHES-AIRCRAFT-HELIPLANE-HELICOPTER-CONCEPT-DRAWING-PHOTO/263501640952?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D49917%26meid%3D3407ecb8572c4d2d8b8fb5deb3373135%26pid%3D100005%26rk%3D2%26rkt%3D6%26sd%3D263501621325%26itm%3D263501640952&_trksid=p2047675.c100005.m1851

 

[dan_inbox]

Source:
https://www.ebay.com/itm/VINTAGE-HUGHES-AIRCRAFT-HELIPLANE-HELICOPTER-CONCEPT-DRAWING-PHOTO/263501640952?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D49917%26meid%3D3407ecb8572c4d2d8b8fb5deb3373135%26pid%3D100005%26rk%3D2%26rkt%3D6%26sd%3D263501621325%26itm%3D263501640952&_trksid=p2047675.c100005.m1851

Thanks for this picture. Neat stop-rotor concept.
On the view of the back side, there is a scribbling that looks like "CH-1454". Any idea what it means?
Do we know any designation for this Hughes concept, other than Heliplane?

 

[hesham]

Big surprise,

this hot-cycle rotor helicopter was called Hughes Model H-356.

https://apps.dtic.mil/dtic/tr/fulltext/u2/473862.pdf

 

[hesham]

Big surprise,

this hot-cycle rotor helicopter was called Hughes Model H-356.

https://apps.dtic.mil/dtic/tr/fulltext/u2/473862.pdf

Who can collect the pieces.

 

[hesham]

Hi,

here is a Hughes Model-285 Hot-Cycle Rotor System,and maybe this
generic helicopter was early design to use on it.

https://apps.dtic.mil/dtic/tr/fulltext/u2/290285.pdf

 

[hesham]

here is a Hughes Model-285 Hot-Cycle Rotor System,and maybe this generic helicopter
was early design to use on it.

https://apps.dtic.mil/dtic/tr/fulltext/u2/290285.pdf

Maybe it was not generic design and real one;

https://apps.dtic.mil/dtic/tr/fulltext/u2/290286.pdf

 

[hesham]

From Icare 1967,

unknown one.

 

[Mark Nankivil]

Good Day All -

I bought on EPay the "Proceedings of the 1st National V/STOL Aircraft Symposium" November 3-4, 1965 at Wright-Patterson AFB. One of the subjects was Hughes Hot Cycle design applied to the stopped rotor/wing concept. A few drawings attached. For the drawing of the rotor model components, Hughes looked at the hub being triangular, circular and trisector plus different airfoil shapes so each hub shape is a standalone.

 

[sferrin]

It was always a mystery to me what kind of seals they were using to prevent gas leakage.

 

[taildragger]

It was always a mystery to me what kind of seals they were using to prevent gas leakage.

It probably wasn't a great challenge, Fairey had faced the same problem years before on the Rotodyne and apparently found a solution. Sealing a pressure vessel around a rotating shaft had been done for decades on steam turbine installations with labyrinth seals - I'd guess something similar was used for hot-cycle rotor systems.

 

[sferrin]

It was always a mystery to me what kind of seals they were using to prevent gas leakage.

It probably wasn't a great challenge, Fairey had faced the same problem years before on the Rotodyne and apparently found a solution. Sealing a pressure vessel around a rotating shaft had been done for decades on steam turbine installations with labyrinth seals - I'd guess something similar was used for hot-cycle rotor systems.

Yeah, but not at 1500 degrees.

 

[taildragger]

Yeah, but not at 1500 degrees.

Superheated steam can get pretty hot - 1000 degree F or so in a 1200 PsiG plant - and I don't know of any temperature limitation on labyrinth seals other than that of the material they're constructed of.

 

[Ray Jones]

Think you may be interested in this, featured in UK comic "The Eagle" in the 60's.

 

[hesham]

Think you may be interested in this, featured in UK comic "The Eagle" in the 60's.

Welcome aboard Ray,very nice,and what was the magazine's name,"The Eagle" ?.

 

[yasotay]

Great stuff Ray. Thank You and welcome aboard.

 

[asiscan]

Pretty sure NASA contemplated a design based on the Hughes concept in the early 90's using a large circular hub fairing and short large chord blades. Think it went under the title of M85 due to cruise mach goal of 0.85.

 

[hesham]

Hi,

here is Hughes Model or H-350;

nevadamusic.com, music and histories by CW Bayer

www.nevadamusic.com

 

[hesham]

Hi,

here is a Hughes hot-cycle Project,but with main difference from anther artist drawings,the engines were mounted in each side of rear fuselage ?.

Development of High-Performance Rotary-Wing VTOL Aircraft on JSTOR

This paper summarizes the programs for, and some of the resul. ts of, the Army's continuing effort in the development of high performance rotary wing VTOL a...

www.jstor.org

 

[Jemiba]

See post #14 and #15

 

[hesham]

See post #14 and #15

Yes my dear Jemiba,

but I meant there was a Navy concept and Army concept from this Project exactly.

 

[hesham]

See post #14 and #15

Yes my dear Jemiba,

but I meant there was a Navy concept and Army concept from this Project exactly.

There was a version of Army concept,had a different mounted
engines positions,as this;

 

[hesham]

Source:

https://www.ebay.com/itm/VINTAGE-HUGHES-AIRCRAFT-HELIPLANE-HELICOPTER-CONCEPT-DRAWING-PHOTO/263501640952?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D49917%26meid%3D3407ecb8572c4d2d8b8fb5deb3373135%26pid%3D100005%26rk%3D2%26rkt%3D6%26sd%3D263501621325%26itm%3D263501640952&_trksid=p2047675.c100005.m1851

From, Takeoff Into Greatness.