Ljungstrom Internal Propulsion Aeroplane Projects of 1928

[jzichek]

Check out this article on the Ljungstrom Internal Propulsion Aircraft Projects of 1928:

Olof Ljungstrom, an engineer in the aircraft division of the Ford Motor Company, developed a propulsion system featuring boundary layer removal by means of a piston engine driving an axial flow turbine blower inside the aircraft. In 1928, he proposed a giant seaplane and the small monoplane pictured above, both of which were powered by this system. The accompanying image gallery reproduces the proposal documents, correspondence with NACA, and several photos and drawings of these futuristic though flawed machines.


-Jared

 

[royabulgaf]

Didn't he and Dr. Zharkov later refine this idea?

 

[theponja]

Fantastic!!! This is retro-fururism!!!

Sad we don't have a 3d view of the plane. Could be a great model.

 

[jzichek]

Thanks Alcides; unfortunately there is no 3-view, but somebody might be able to put together a reasonable facsimile of one using the scrap views in the report, the model photos, and the span (26 ft).

 

[blackkite]

It looks like Brabham BT-46B. ;D

 

[Tophe]

There is even a giant (90m span) twin-boomer in this collection...

 

[hesham]

Hi,

a development of this propulsion concept is here;

http://www.secretprojects.co.uk/forum/index.php/topic,5495.msg43898.html#msg43898
https://www.flightglobal.com/pdfarchive/view/1941/1941%20-%202110.html

 

[XP67_Moonbat]

Thanks Jared!

 

[iverson]

Hi,

a development of this propulsion concept is here;

http://www.secretprojects.co.uk/forum/index.php/topic,5495.msg43898.html#msg43898
https://www.flightglobal.com/pdfarchive/view/1941/1941%20-%202110.html

This looks like a turbojet with a Lysholm screw-type supercharger in place of the usual axial or centrifugal compressor. See https://en.wikipedia.org/wiki/Rotary_screw_compressor