Submersible aircraft

[moin1900]

Here a sideview of the Papadales submersible airplane
Google Books
New Scientist 17.october 1974
"Sci-fi submersible seaplanes by 1980s"

The Descriptive Finding Guide for the Submersible Seaplane
http://www.oac.cdlib.org/findaid/ark:/13030/c86976b3/entire_text/

Fritz Hahn "Deutsche Geheimwaffen 1939-1945" mentioned a german WW2 "Fliegendes-U-Boot" from
Ingenieurbüro Glückauf.

 

[Grey Havoc]

Two separate submersible UAV projects/concepts:

I have a hard time seeing real world practicality for this thing. It swims about as good as a dead tuna. I'll be impressed when it swims as good as it can fly.


https://www.youtube.com/watch?v=0Og6-oFKoV0

[snip]

http://nextbigfuture.com/2015/08/boeing-patent-for-flying-drone-that-can.html

EDIT: A little more detail on the latter: http://www.gizmag.com/boeing-uav-submarine/38976/

 

[hesham]

Hi,


here is a sketch for Mirage IIIV as a submersible aircraft,mentioned in Science & Vie
magazine,just a notional design.


http://kitbox.free.fr/dossiers/FS_USA/

 

[hesham]

https://www.flickr.com/photos/sdasmarchives/sets/72157634218124530/with/9084896345/

Also from the same source,

here is anther two concepts,one of them was just a dream as I think,but what was
Model-815-16 ?.

https://www.flickr.com/photos/sdasmarchives/albums/72157634218124530

 

[lark]

Own design of the artist according to the caption.
Not a project I think...

 

[hesham]

Own design of the artist according to the caption.
Not a project I think...

That's right my dear Lark,

and what about Model-815 ?.

 

[Stargazer]

but what was Model-815-16 ?.

and what about Model-815 ?.

I definitely can't see any "Model 815-16" mention in these. The scans are much too small to make out much. All I can see is "Photo of early model ?-16."
It takes quite a stretch of the imagination to see "815" in this, or any other number for that matter...

 

[robunos]

Own design of the artist according to the caption.
Not a project I think...

...but clearly based on the Convair sea Dart...

cheers,
Robin.

 

[hesham]

https://www.flickr.com/photos/sdasmarchives/albums/72157634218124530

Hi Skyblazer,

I meant the drawing in this page,which displayed before by my dear Flateric;

 

[Stargazer]

I meant the drawing in this page,which displayed before by my dear Flateric;

Oh, okay. The designation "Model 815-16" makes me think of a Boeing design, but of course without the reference of the document it's difficult to tell for sure.

 

[Schneiderman]

Rotating and flipping the image enables some of the previous page to be read. The graph, Fig 1, gives the span in meters, so metric measurements but with US spelling. I guess that would suggest a US article based on a non-US concept.

 

[hesham]

Oh, okay. The designation "Model 815-16" makes me think of a Boeing design, but of course without the reference of the document it's difficult to tell for sure.

Also I suggest Boeing,but who knows ?.

 

[Orionblamblam]

Article from Missiles & Rockets, March 15, 1965.

 

[hesham]

Hi,

launch submersible,right or not ?.

Katori Unikalnaya i paradoksalnaya voennaya tehnika

 

[Jemiba]

Looks rather like a Regulus 1 missile, to be launched from a surfaced sub, not
a submersible aircraft !

 

[Avimimus]

There's a thread for submersible aircraft carriers (Rather than subermersible aircraft): http://www.secretprojects.co.uk/forum/index.php/topic,2390.0/all.html

But, if the aeroplane is unmanned and non-reusable (e.g. a missile) - it would be more appropriate to treat it as a missile or naval project (forums exist for those as well). Nevertheless, it is interesting.

 

[Grey Havoc]

https://www.youtube.com/watch?v=filz6xYZUFw
http://www.dailymail.co.uk/sciencetech/article-3370947/The-Transformer-flying-drone-s-SUBMARINE-Navy-funds-research-UAV-swim-flies.html​

 

[Grey Havoc]

https://www.youtube.com/watch?v=K_wiVdY5BWU​

Published on Jan 19, 2016


Project Website: http://www.LoonCopter.com

Video of the Loon Copter for the 2016 Drones for Good Competition. The Loon Copter was selected as 1 of 10 semifinalist in the international category. The competition had received 1017 entries from 165 countries.

The Loon Copter submarine drone project started in 2014 at Oakland University and is the first multi-rotor drone to successfully demonstrate flight, operation on the surface of water, as well as diving.

This is a proof-of-concept prototype and there is still a lot of work to be done. We are looking into extended wireless range underwater, navigation underwater, a redesign of the hull for more efficient diving, payloads for different applications, etc. If you like to support this project, please "like" the Loon Copter on the semifinalists webpage here:

http://www.dronesforgood.ae/flag/flag/upvote/18611?destination=node/18611&token=abf76171258921b59b37c66a20a0fdba&has_js=1

 

[cluttonfred]

Very cool and some very interesting possibilities come to mind for the concept. Imagine a small, shallow water submarine able to approach an enemy shore, deploy drones for detailed reconnaissance, then send commandos ashore with drones flying top cover for ISR or even providing close air support. Neat!

 

[Grey Havoc]

Hi folks,
This one of the older (and odder) patents I’ve seen for a submersible aircraft, due to Polomede Ferrari and Enrico Miglioli and filed on March 7th, 1918.

“The primary object of the invention is the provision of a flying machine in the nature of a hydroaeroplane adapted for traveling at desired elevations in the air as well as upon the surface of the water, provision being made for submerging the device for traveling beneath the surface of the water.
A further object of the device is to provide in a single machine a submergible craft and a hydroaeroplane whereby traveling may be readily accomplished beneath and upon the water as well as through the air.”

Link: http://www.google.com/patents/US1288860

Cheers, 'Wingknut'.

Drawings at original post (couldn't shrink them down for crossposting for some reason).

 

[Grey Havoc]

https://science.slashdot.org/story/16/03/19/1917214/stealthy-drone-can-hide-underwater-for-months-then-float-to-surface-to-take-off

EDIT:
https://www.youtube.com/watch?v=o17x3XTA-DM&feature=player_embedded

 

[Stargazer]

Here is a submersible seaplane design, only identified as the Model 815-16. This seems to be a Boeing designation.

Given the shape and size of the cockpit, it would have been a fairly small aircraft.

Source: SDASM

EDIT: Just remembered we'd already posted this project. Sorry! I've merged the two topics.

 

[Avimimus]

Quick question: Does anyone have dimensions (e.g. wingspan or length) for the Dassault backed trifibium?

 

[Grey Havoc]

Not on my end, sorry.

On another note, from the late 2000s, here is NSWC Carderock Division's Submersible Aircraft Concept Design Study.

The submersible aircraft study combines the speed and range of an airborne platform with the stealth of an underwater vehicle by developing a vessel that can both fly and submerge. The study explores the feasibility of a design capable of insertion and extraction of Special Forces at greater ranges, higher speeds, and in locations not previously accessible without direct support from additional military assets. The concept design goals are to find a solution space for the feasibility of a vessel capable of multi-modal operations (airborne, surface, and submerged) that can also easily transition between these modes of operation. Within this study a variety of technologies including developing technologies are considered. Materials and structures that provide the desirable characteristics for both a submerged and airborne platform are exploited in order to overcome the major challenges that the design of a submersible aircraft poses.

 

[hesham]

Hi,

http://archive.aviationweek.com/search?exactphrase=true&QueryTerm=+submersible&start=0&rows=20&DocType=Article&Sort=&SortOrder=&startdate=1943-07-26&enddate=2018-07-31&LastViewIssueKey=&LastViewPage=

 

[jsport]

Hi,

http://archive.aviationweek.com/search?exactphrase=true&QueryTerm=+submersible&start=0&rows=20&DocType=Article&Sort=&SortOrder=&startdate=1943-07-26&enddate=2018-07-31&LastViewIssueKey=&LastViewPage=

wow thank you hesham for finding
a major undertaking it would have been.

 

[hesham]

Thank you my dear Jsport.

 

[hesham]

Maybe fooled once more by the search function, but I couldn't find the diving aircraft designed and offered to the
US Navy by Adolph F. Craft and Dick Cardwell (US-patent 3.082.275 from 1963). Fitted with foldable wings ad a rear
loading rampit should be powered by two rear props on and under the water and by two jet engines for flight.

The patent itself.

 

[hesham]

Hi,

I don't know what was this submersible aircraft patent ?.

 

[galgot]

Found this in a 1957 issue of Spirou Magazine, they had pages these days about latest tech and planes...



Here the main text (goooogle) translated :
It had been talked about for years: many inventors had submitted plans to patent offices around the world. And everywhere, the plans had been rejected. The idea was not practicable. The flying submarine was only a smoking chimera, good to throw away. To hold in the air, the plane must be as light as possible. Only the least dense alloys are used in its construction, and the construction techniques themselves seek to combine strength and low weight.
To move underwater, a submarine must be solid. Its hull is under enormous pressure, and a jumping rivet can cause a catastrophe. By cons, the weight is relatively unimportant: the water supports the vessel ...
That's what we said a few years ago. But supersonic flight has changed everything.
When an airplane moves faster than the sound. He compresses the air before him with such force that this pressure is equivalent to that of great depths. Of course, modern aircraft are pressurized to reach high altitudes ... In other words, they are tightly closed! ... In addition, today's alloys, although extremely light, are very resistant.
And here are all the objections removed. The submarine plane leaves the domain of utopia. It has even become a reality such a point as the patent taken in the US by Don B. Doolittle,
Vice President of the All American Engineering Co, was immediately adopted by the US Navy Department, and only recently has the plan gone out of the "Secret" file.
Based on the seaplane YF2Y1 Sea Dart, for the shape of the cabin at least, the underwater plane is a delta wing aircraft, apparently propelled by atomic energy.
In the air, it is a jet plane: under water, propellers push it. An airlock is arranged at the front, allowing possible frogmen to go out to do some work; the nose of the camera encloses an underwater TV camera allowing the pilot to navigate with precision. The tail carries at the top a periscope, retracted in flight, as well as a snorkel allowing the submerged men to breathe the air of the surface. According to Don Doolittle's plans, this device would carry fifty-two to sixty men. The day is not far when we will see planes coming out of the water!

 

[hesham]

Oh my God,you made my day Galgot,

it was from All American Engineering,which I spoke about its activities here,but that's a new design (lower one),

All American Company Aircraft Projects

Hi, the All American Engineering Company seemed to be invention many aircraft Projects,in the Submersible Aircraft topic and in reply # 152,I displayed an article about flying submarine jet fighter Project for this firm; http://www.secretprojects.co.uk/forum/index.php/topic,703.150.html In...

www.secretprojects.co.uk

 

[galgot]

Ah yes, same one .
That Delta one seems much bigger... and atomic !

 

[Foo Fighter]

A less useful project I cannot think of right now, apart from papier mache tanks or rifles made out of egg containers.....

 

[hesham]

From L+K 22/1965.

 

[executioners]

"But it is a nice fake....." not so "nice"

"....how do you prevent the pilot from drowning...." with an oxygen mask

 

[hesham]

Hi,

http://aeroclub.saverne.pagesperso-orange.fr/Zfichiers/AeroJack/AeroJack48.pdf

 

[riggerrob]

Amazing how only one amateur has succeeded where military-industrial complexes have wasted multi-million dollars!
Has anyone considered a “wet” airframe containing an inflatable pressure chamber ... similar to soft, portable decompression chambers used for diving emergencies and medical, oxygen-rich hyperbaric therapy?
If properly designed, fleeing combat swimmers could even roll their soft pressure chamber into an airplane and fly away. No need to worry about decompression sickness as long as they keep internal pressures high enough.
I suggest soft, inflatable capsules to reduce weight.

 

[Dilandu]

Amazing how only one amateur has succeeded where military-industrial complexes have wasted multi-million dollars!

Generally because military-industrial complex was trying to build something that have practical use, while amateur build basically a proof that you could combine a very bad airplane with a very bad submarine.

Do not get me wrong, I fully agree that his design was ingeniuos and served as a proof of concept. But it have literally zero potential for developement: engineering dead end. With a lot of efforts it could PROBABLY be turned into something like special-operation equipment, but it have no general military value.

 

[Grey Havoc]

Convair Submersible Nuclear Ramjet - Shipbucket

 

[uk 75]

I reckon every Brit's dream fighter would have made a great submersible fighter. Just look at it

HAWKER SIDDELEY P1121

https://www.cgtrader.com/3d-models/aircraft/military/hawker-siddeley-p1121 model created in sketchup render KeyShot edges 36066 faces 16811 component instances 117 grups 48 component definitions 12 layers 1 materials 18

chtazinazka.artstation.com

Gentlemen, anything can happen in the next half hour.
Troy Tempest and the Hawker P1121 Stingray.