Lockheed CL-379 - A New VTOL-STOL

[hesham]

Hi,

in Flightglobal site I read about the Lockheed CL-379 tilt-wing research
aircraft project,which was selected from more than 30 design-studies,
and more Info or drawings,please.

http://www.flightglobal.com/PDFArchive/View/1958/1958-1-%20-%200754.html

 

[Orionblamblam]

One version (the only version I've seen, and have seen it multiple places including a patent)

 

[Jemiba]

Here's an artists impression of the CL-379 "in action":
(from FlugWelt 1959)

 

[hesham]

Thank you my dears Orion and Jemiba,

but what was the competition for the US Army which tis project
involved in it ?.

 

[Orionblamblam]

http://up-ship.com/blog/?p=4695

And it's cheap!

 

[AeroFranz]

tempting....(wipes drool)

 

[mz]

umm how can it stand on the ground with props forward as they touch the ground? Something's wrong.

 

[AeroFranz]

looks like the wing tilts. It probably can't have the wing in the horizontal position while on the ground for the reason you mentioned.

 

[Orionblamblam]

looks like the wing tilts.

A little bit. It's not a full tilt-wing VTOL. A whole lot of flaps diverts the thrust downwards.

 

[Jemiba]

The same principle obviously found favour again in a Saro project from
1967, the Saro P.5.39, although here ground clearance would have been
sufficient to allow for take-off with the wing not tilted. Question to me is,
would it really have been a VTOL, or just an ultra-STOL ? AFAIK, prototypes
actually built using this principle (Fairchild Fledgeling, Ryan Vertiplane) never
achieved true VTOL

(from "Kipprotorflugzeuge" by Alexander Lüdeke)

 

[AeroFranz]

You can probably achieve takeoff within a fuselage length (I think this was quoted for the VZ-3), but no VTOL

 

[overscan (PaulMM)]

http://www.ebay.co.uk/itm/LOCKHEED-CL-379-A-NEW-VTOL-STOL-BROCHURE-DATED-1959-/290961169064?pt=LH_DefaultDomain_0&hash=item43bea31aa8


(If you'd rather get a paper copy)


Otherwise buy a scan from Scott: http://up-ship.com/drawndoc/drawndocair.htm#airdoc14

 

[hesham]

Hi,

http://www.avia-it.com/act/biblioteca/periodici/PDF%20Riviste/Alata/Alata%201959%2001.pdf

 

[hesham]

From Ailes 20/12/1958.

 

[hesham]

From Interavia 1959.

 

[hesham]

From Army Aviation 1958/11.

 

[fightingirish]

Air Doc 14: Lockheed CL-379 – A New VTOL-STOL – The Unwanted Blog

[...]
And it's cheap!

Ron Downey uploaded this brochure as a free version on his blog. I'll let everyone decide for themselves, if they want download this copy or rather buy it at OBB's blog.
Link:

Lockheed CL-379 VTOL-STOL Brochure

A copy of the Lockheed company produced brochure on their proposed Lockheed CL-379 VTOL-STOL aircraft. Dated 1958. Credit: William H. Kuhlm...

aviationarchives.blogspot.com

 

[overscan (PaulMM)]

I guess @Orionblamblam can confirm if it's his scan.

 

[Loyal_Dragon]

How would it be able to remain controlled in VTOL mode though ?

 

[Orionblamblam]

I guess @Orionblamblam can confirm if it's his scan.

It is not. However, my scan has one additional page. I guess the only way people can judge which is better is to download Ron Downey's and buy mine and compare side to side.

It's the only reasonable approach.

 

[TsrJoe]

Lockheed CL-379 VTOL-STOL Brochure

A copy of the Lockheed company produced brochure on their proposed Lockheed CL-379 VTOL-STOL aircraft. Dated 1958. Credit: William H. Kuhlm...

aviationarchives.blogspot.com