Unknown helicopters

[hesham]

Hi,

I found four helicopters projects,need help to can get a more
informations about them;
1-Gyrodyne convertiplane (GCA ---?).
2-    ,,       military convertiplane (GCA ---?).
3-    ,,       Gyroliner (GCA---?).
4-Vertol-NASA tilt-wing (Vertol V---?).

[lark]

Hesham,
The 3 convertiplane concepts are from the Gyrodyne Company of America.
If you can put a year on the concepts I can maybe help you with the designations.For exemple GCA produced two gyroliners concepts.
1949 - GCA 8 Gyroliner
1954 - GCA 35 Gyroliner ...

Source : Helicopters and Autogyros of the world.
             Paul Lambermont & Anthony Pirie
             Cassell & Co - London .1958

[hesham]

My dear lark,

I don't know the years,but I think it was from 1953 and less,
if you have some of Gyrodne helicopters,please tell us about them,if
you can.

[Hood]

The Vertol/ NASA design never left the wind tunnel and was, I think, a pure research project. The six propellers were driven by a 1000hp electric motor. The double-slotted flaps covered about 60% of the chord. The entire wingspan was subject to the propeller wash for lift.

Source: 'Straight Up: A History of Vertical Flight' by Steve Markham and Bill Holder, Schiffer Military History, 2000

[hesham]

Thanks hood,

my dears, look with me to Gyrodyne military convertiplane,I think it was
involved in VTOL competition which led to develope McDonnell XV-1,Sikorsky
XV-2,Bell XV-3 and Lockheed L-203.  what is you opinions?.

[slmvbs]

Hi
Try the google patents site - just type gyrodene and a number of good results come up.

[hesham]

Hi,

here is the Gyrodyne GCA-24 was cargo helicopter of coaxial configuration
and powered by two 3500 hp turboprop engines.
http://www.flightglobal.com/PDFArchive/View/1954/1954%20-%200666.html

[hesham]

Hi,

the Jacobs 104 was unconventional helicopter project and may it was
submitted to convertiplane competition;http://www.secretprojects.co.uk/forum/index.php/topic,636.0.html

http://www.flightglobal.com/PDFArchive/View/1953/1953%20-%200113.html

[hesham]

Hi,

the Gyrodyne first helicopter was GCA-3 Helidyne,notice in Flightglobal
page also the Westland W.80,W.85 & W.90 projects.
http://www.flightglobal.com/PDFArchive/View/1953/1953%20-%200118.html?search=gyrodyne%20helicopter%201953

[Jemiba]

Just two 3-views, the W.80 and the W.90 Goliath from
"Westland Aircraft since 1915" by Derek N.James, Putnam :

[robunos]

Just two 3-views, the W.80 and the W.90 Goliath from
"Westland Aircraft since 1915" by Derek N.James, Putnam :

i have that book, but i don't remember seeing these illustrations, what edition are they from?, i have the one with the painting on the dust jacket.

cheers,
        Robin.

[Jemiba]

Sorry, I've never seen the dust jacket, I've got my hands on it in the states library
heer in Berlin, it must have been the 1991 edition, if I can trust the catalogue.

[robunos]

thanks for that, wil have to have a dig in my boxes.

cheers,
         Robin.

[hesham]

Hi,

I don't know what was those helicopters ?.
http://www.flightglobal.com/PDFArchive/View/1973/1973%20-%201400.html?search=aircraft%20project%201978

[Barrington Bond]

I think they are a Jetranger and Cayuse subtly altered for the advert for whatever purpose I do not know.

Regards,
Barry