Submersible aircraft

[AeroFranz]

Thanks for the clarification! Google translate is a pretty cool tool, but I'm afraid it has a long way to go before adequately translating technical text

[OM]

Thanks for the clarification! Google translate is a pretty cool tool, but I'm afraid it has a long way to go before adequately translating technical text

....And speaking from experience, transliterating technical Russian can be a royal pain in the ass. 

[Gannet]

Why would you fly underwater? For stealth, exploration, or tourism ASW or anti-ship attack.

See page 5 of 19 for Motivation and page 6 of 19 for Mission Profile

http://www.darpa.mil/sto/solicitations/BAA09-06/files/Proposers_Day_Presentation.pdf

The above link also has charts addressing the five Technical Challenges

[Gannet]

Found this recent (Feb 2009) interesting paper which discusses both the syfy and history of submersible aircraft and other similar crafts

http://www.verlab.dcc.ufmg.br/_media/publicacoes/drews09survey.pdf?cache=cache


Enjoy

[Matej]

Magnificent Ushakov LPL rendering from Precise3DModeling.com

[Lauge]

Magnificent Ushakov LPL rendering from Precise3DModeling.com

I believe I've already mentioned this in another post quite a while ago, but here's Aircraft Recognition 101: "If it's weird, it's English, if it's ugly, it's French, if it's weird and ugly, it's Russian".

That aside, how can you NOT love that ? It's got exactly the right kind of "steampunk meets League of Extraordinary Gentlemen" look.

Regards & all,

Thomas L. Nielsen
Denmark

[Stargazer2006]

A very interesting video animation of the Russian flying submarine aircraft (LPL) project.

<a href="http://www.youtube.com/v/xxyf3O_SyYQ&rel=1" target="_blank">http://www.youtube.com/v/xxyf3O_SyYQ&rel=1</a>

[boxkite]

From a 1965 episode of I've Got A Secret

<a href="http://www.youtube.com/v/Ew1EVsEKKRA&rel=1" target="_blank">http://www.youtube.com/v/Ew1EVsEKKRA&rel=1</a>

[Gannet]

Found this article http://www.subaviators.com/Portals/0/News/DIVER_JUNE_2009_Flying%20Subs.pdfthat discusses submersibles that fly underwater using dynamic lift.  It also mentions submersible aircraft "Joseph Hardo’s ‘Submarine Flying Boat’ of 1922, or Longobardi’s 1918 submarine-cum-aircraft described elegantly as a “Combination Vehicle”  It also shows some unreadable thumbnails of the patent sketches.  While doing an internet search on Longobardi he also developed concepts for the flying car.  I think he was trying to develop Jules Verne's Terror from "Master of the World". 

When reading a recent patent by Graham Hawkes http://www.freepatentsonline.com/7131389.pdfon submersibles it cites Ardo in 1922 not Hardo which I believe is incorrect. 

[Matej]

From a 1965 episode of I've Got A Secret

Is anybody lucky to save this video? It is not online anymore...

[Avimimus]

Doesn't the video misrepresent the LPL? If I recall correctly, the major advantage it was expected to have was the ability to travel quickly to a patrol area, attack and then return to base to be loaded with fresh torpedoes and sent out again. In this way several attacks could be made during the time it would take a conventional submarine to cover the distance between a patrol area and its base.

I find the idea of the LPL being flown undetected into an enemy harbour and then diving, attempting to manoeuvre in narrow waters, firing its torpedoes at point blank range and then surfacing and flying away a little bit unbelievable.

[airman]

Hi,

http://www.vtol.boom.ru/

thanks for link ! 
it's very interesting !

[Matej]

You only need to search enough and you will find everything. Now we have at least partially serious effort to design the submersible chopper. "Partially serious" mainly because it is the students project, however the one, that won the first prize in the undergraduate category of the 24th annual student design competition hosted by the American Helicopter Society and sponsored by Sikorsky. The winning concept, designated "Waterspout", is the brainchild of a team of students from the Faculty of Aerospace Engineering at the Technion - Israel Institute of Technology and Pennsylvania State University.

Competition requirements called for design of a UAV that will deploy from the submarine while at a periscope depth of 15 meters, rise to sea level, be able to float and take off in moderate conditions and then fly 260km. The system would be able to both deploy and retrieve personnel and return them to the submerged submarine. The whole paper is available at vtol.org site:

http://www.vtol.org/pdf/2007PSU_TechnionUndergrad.pdf

[Gannet]

Found this article today, did not see it in any of the previous posts.  It is by Norman Polmar.  He has alot info on the Convair/General Dynamics Subplane in this article

http://www.military.com/forums/0,15240,179699,00.html?wh=wh

[Creative]

You only need to search enough and you will find everything. Now we have at least partially serious effort to design the submersible chopper. "Partially serious" mainly because it is the students project, however the one, that won the first prize in the undergraduate category of the 24th annual student design competition hosted by the American Helicopter Society and sponsored by Sikorsky. The winning concept, designated "Waterspout", is the brainchild of a team of students from the Faculty of Aerospace Engineering at the Technion - Israel Institute of Technology and Pennsylvania State University.

Competition requirements called for design of a UAV that will deploy from the submarine while at a periscope depth of 15 meters, rise to sea level, be able to float and take off in moderate conditions and then fly 260km. The system would be able to both deploy and retrieve personnel and return them to the submerged submarine. The whole paper is available at vtol.org site:

http://www.vtol.org/pdf/2007PSU_TechnionUndergrad.pdf

Fascinating, thanks!