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kodos

k.u.k. Versuchsgleitboot - first ever build hovercraft

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227.jpg

 

The Versuchsgleitboot (experimental slide boat) was a prototype of a fast and small torpedo boat build in 1916 by Dagobert Müller von Thomamuehl.

Using the hover effect to lift the boat from the surface allowing it to reach 32,6 knots top speed.

 

Unlike modern hovercraft, the Versuchsgleitboot had skirts only at the sides, not at front or back. The engine creating the air cushion was located towards the front of the boat and was capable of lifting the rear section of the boat up to 10 inches off the water's surface. Due to the hull's design, the craft came completely out of the water at speeds higher than 20 knots.

 

The military review board found several problems with the Versuchsgleitboot. The craft was unstable, particularly in high seas. It was also not particularly good at launching torpedoes or depth charges, which limited its effectiveness as a military craft. For these reasons (and the situation of the war), the board did not recommend further development (the concept of using torpedo bombers instead was more promising).

 

Some sources treat this design not as a true hovercraft for several reasons (with the 1959 Saunders-Roe, Nautical 1 as the first one).

Compared with modern hovercraft it was not, but it was for sure the first "water effect" vehicle.

 

 

Versuchsgleitboot.jpeg

Stats:

yard: Seearsenal Pola

Crew: 5
Length: 13m
Beam: 4m
Displacement: 6,5t

 

2 shafts driven by 4 120PS aero engines

1 air compressor driven by a 65PS aero engine with a flow rate of 450 m3/min

 

2 450mm Torpedoes

3-6 anti submarine bombs

1 Schwarzlose machine gun

c786c76fbf712cbb545a9bbfbef3113c7bd4c952

More Pictures:

 

 

There is also a project to rebuild the prototype (approximately finished summer 2015):

http://www.visionaer.info/leadership/nachbau.htm

Edited by kodos
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One of the crazy ideas from the germans in the war

 

Not German but Austria-Hungary.

by the way, other crazy ideas from kuk engineers (in times of peace) were the torpedo and the ship-screw/propeller (like most of the ideas they were more successful outside the monarchy)

 

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Not German but Austria-Hungary.

by the way, other crazy ideas from kuk engineers (in times of peace) were the torpedo and the ship-screw/propeller (like most of the ideas they were more successful outside the monarchy)

 

 

RIGHT ! 

Torpedo was invented by Giovanni Luppis (Austro-Hungarian naval officer) 

The shippropeller was invented by Josef Ressel, Austro-Bohemian

The gyroscope was invented by Ludwig Obry, Austrian

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RIGHT ! 

Torpedo was invented by Giovanni Luppis (Austro-Hungarian naval officer) 

The shippropeller was invented by Josef Ressel, Austro-Bohemian

The gyroscope was invented by Ludwig Obry, Austrian

 

Dont want to spoil the fun but, Robert Whitehead is credited developing the first modern torpedo... :hiding:

 

EDIT: i can see why you wrote Luppis as he basically invented the concept of the torpedo. Whitehead's torpedo is a further development of Luppis idea.

Edited by imply_tha_best

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Your edit tells the truth :great:. Anyway, Robert Whitehead was a british engineer working for the Austrian navy at Fiume (today Rijeka, Croatia)

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These ships are again in development today.

They are called "SES" - Surface effect ships.

It is essentially a catamaran with skirts in front and back of ship, first testings were done in 60's by US navy, but the problem was that at that time there was no material that could be used for longer periods of times for skirts without tearing.

So all ships were transferred to US Coast guard (that used them in San Francisco bay area, (if i recall correctly)) and later "mothballed". One of the ships was later cut in half and extended to double it's lenght for some additional testing.

http://en.wikipedia.org/wiki/Surface_effect_ship

 

Currently the most successful is norwegian "Skjold" project with top speed in excess of 60 knots, (there was a web page with lots of pictures showing the boat, created by its crew but the government made them take it down).

 

From Wiki:

http://en.wikipedia.org/wiki/Skjold-class_corvette

 

Skjold-class corvettes (skjold means "shield" in Norwegian) are a class of six large, superfast, stealth missile craft in service with the Royal Norwegian Navy. The boats were formerly classed as MTBs (motor torpedo boats) but, from 2009, the Royal Norwegian Navy has described them as corvettes (korvett) because their seaworthiness is seen as comparable to corvettes, and because they do not carry torpedoes. They were built at the Umoe Mandal yard.

 

Development and production

The Skjold class vessels began with the development of the Royal Norwegian Navy's "Project SMP 6081", and the first preproduction version was ordered on 30 August 1996. The first ship of its class, P960, was launched on 22 September 1998 and commissioned 17 April 1999. A Norwegian Parliamentary White Paper of 2001 recommended building five additional boats, and this was agreed to in 2002. Six Skjold-Class MTBs have replaced the Royal Norwegian Navy's previous fourteen Hauk class MTBs.

 

P965_KNM_Gnist.jpg

 

Design

 

The Skjold design is a surface effect craft, constructed of glass fibre/carbon composite materials. Buoyancy is augmented underway by a fan-blown skirted compartment between the two rigid catamaran-type hulls. This provides an alternative solution to the planing hull/vee hull compromise: the air cushion reduces wave slam at high speeds while presenting a low-drag flat planing profile at the waterline.

To ensure stealth capabilities, anechoic coatings of radar absorbent materials (RAM) have been used in the load-bearing structures over large areas of the ship. This strategy leads to significant weight saving compared to the conventional construction technique of applying RAM cladding to the external surfaces. The ship's profile has a faceted appearance with no right angle structures and few orientations of reflective panels. Doors and hatches are flush with the surfaces and the windows are flush without visible coaming (edge of window aperture) and are fitted with radar reflective screens. The vessels are additionally protected by the Rheinmetall MASS sensor / decoy system.

 

The final design was changed compared to the prototype Skjold, which itself was rebuilt to the new specifications. Most notably, the vessels use 4 gas turbines, two large ones and two small ones, giving greater power. Two MTU 123 cruise diesel propulsion units used previously at loiter speeds were removed. The foredeck was strengthened to accommodate the addition of a 76 mm Otobreda Super Rapid gun.

 

One of the ships was also leased to US navy and tested together with the M80 Stilleto (http://en.wikipedia.org/wiki/M80_Stiletto).

 

P.S.

Tried to design such boat during my university times and it wasn't easy! :D

But what I can say with all the new tech that came in last 5-10 years (carbon, kevlar....) some old "crazy" designs that were ahead of time are getting tested again using those technologies and they don't seem so crazy anymore.

Edited by zmalamuth
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1916? Bloody hell! So the first true "hovercraft" was designed nearly 100 years ago? Why the hell do we not have flying cars then? Oh technology you dissapoint me at times! :sceptic:

 

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1916? Bloody hell! So the first true "hovercraft" was designed nearly 100 years ago? Why the hell do we not have flying cars then? Oh technology you dissapoint me at times! :sceptic:

 

I would guess it had something to do with a great war and an economical crisis afterwards

 

 

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1916? Bloody hell! So the first true "hovercraft" was designed nearly 100 years ago? Why the hell do we not have flying cars then? Oh technology you dissapoint me at times! :sceptic:

 

We have flying cars. We call them airplanes.:hiding:

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