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Maeda Ku 6

Maeda Ku-6

ク6 前田

Maeda Ku-6 Kuro-Sha
Originální název:
Original Name:
前田 Ku-6
experimentální letoun
DD.MM.1945-DD.MM.1945 Maeda Iron Works, Sakai /
Období výroby:
Production Period:
Vyrobeno kusů:
Number of Produced:
1 nedokončen
První vzlet:
Maiden Flight:
Základní charakteristika:
Basic Characteristics:
Vzlet a přistání:
Take-off and Landing:
Uspořádání křídla:
Arrangement of Wing:
Uspořádání letounu:
Aircraft Concept:
Přistávací zařízení:
Landing Gear:
Technické údaje:
Technical Data:
Hmotnost prázdného letounu:
Empty Weight:
700 kg
Vzletová hmotnost:
Take-off Weight:
3500 kg
Maximální vzletová hmotnost:
Maximum Take-off Weight:
? kg
21,940 m
? m
? m
Plocha křídla:
Wing Area:
60,32 m2
Plošné zatížení:
Wing Loading:
58,02 kg/m2
Počet motorů:
Number of Engines:
Objem palivových nádrží:
Fuel Tank Capacity:
Maximální rychlost:
Maximum Speed:
140 km/h v ? m
Cestovní rychlost:
Cruise Speed:
120 km/h v ? m
Rychlost stoupání:
Climb Rate:
? m/s
Čas výstupu na výšku:
Time to Climb to:
? min do ? m
Operační dostup:
Service Ceiling:
? m
? km
Maximální dolet:
Maximum Range:
? km
Uživatelské státy:
User States:
Experimentální jednoplošný nákladní kluzák pro přepravu tanku Micubiši Ku-Ro
Edwin M. Dyer, Japanese Secret Projects: Experimental Aircraft of the IJA and IJN 1939-1945, Midland Pub Ltd., ISBN-13: 978-1857803174
Skrzypacz, Marcin (2005). "Maeda Ku-6 "Sora-Sha"". ENCYKLOPEDIA UZBROJENIA. Retrieved 2007-04-30.
archiv autora
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[nadpis]the Project of a winged tank, the Kuro - Sha[/heading]

Interest in airborne forces can be traced at least since 1917. Formations of the airborne troops, dropped on parachutes, they could be planted even in areas difficult to reach common ground troops and also bypassing the fortifications, the implementation of the survey or fending off an attack from in time of the identified access roads. In addition, the potential withdrawal of paratroopers anywhere on the battlefield compels the enemy to allocate forces to defend against a possible landing party, and so to weaken the troops. However, for such benefits is obliged to pay the firepower, which is much smaller compared to the army, and an extreme dependence on supply from the outside and, as a result, inability to support their own combat readiness.

In the years of the second world war with airborne troops apply for all its major participants, and in an effort to provide these components of a lot of firepower to create special equipment and armament.

In the years of the second world war with airborne troops apply for all its major participants, and in an effort to provide these components of a lot of firepower to create special equipment and armament. For example, as the artillery use of artillery systems, adapted for dropping from aircraft on parachutes: in the US it was the 75-mm towed howitzer M1A1, and in Germany 75-mm reliable gun 7.5 cm LG 40.

Paratroopers but they used modified or specially developed models of firearms. So with the Americans in the armament was a 7.62-mm carbine M1A1, and for the Japanese parachute folding military rifle type 2. Apart from the equipment manually and artillery armament of airborne troops felt a serious lack in the equipment of the armoured technique. Therefore, in each of these countries there were projects of a tank for paratroopers. The main problem was in the common transport tanks and troops on the battlefield. We can therefore see almost a parallel development with very similar results - the Antonov A-40 (KT, Wing tank) (USSR), Raul Hefner Rolabuggy and Rotatank (United Kingdom), Baynes Bat (Great Britain), John Walter Christi M1932 (USA)

The requirements to develop a tank for airborne troops appeared, even for the Japanese. In the years of the second world war in Japan commanders were as in the imperial army army - tejsin sjudan ((挺進集団)), and in the imperial fleet - kajgun kutej (海軍空挺). For the first time were the army and naval sections planted in 1942 during the fighting in the Dutch East-India. Unlike Germans, Britons and Americans, however the Japanese nevybavovali their paratroops značnějším amount of specialized heavy weaponry. It is possible that it was triggered by the japanese paratroopers were rarely deployed according to your destination. Instead, they were mostly used in the role of light infantry, such as, for example, the German "padákoví hunters". However, in the imperial army and the imperial fleet were being considered by the way to increase the combat power of the airborne troops and one of these projects was the project of the tank, which could alone bring to the battlefield on the wings.

In 1943, he was the department of aviation research firm Maeda specified task to produce wings that would have formed the kluzákovou part of the weapon. Future glider staff of the air force of the imperial army assigned the designation Ku-6. The Tank was designed and manufactured by Mitsubishi and was given the designation of So-Ra (or Sora-Sha [空戦車] - Heavenly tank). Due to the risk of possible chaos in the labeling of staff of the air force of the imperial army used a combination of the Kuro-Sha, where "Ku" marked glider Ku-6, "ro" - 6 and "Sha" - tank.

Tank So-Ra company Mitsubishi was, in essence, little tank, the weight of which, even with a crew of two persons (the mechanic-the driver/pilot and the commander/gunner) amounted to 2812 kg. The tower was located behind the mechanic-the driver/pilot whose cabin was fitted with three large holes, with lifting door, ensuring to some extent the view when landing. Information about armoring are not available, estimates are based on analogy with similar japanese light tanks. Pancéř likely to exceed the 6-12-mm thickness of the armour of the light tank type 95 Ha-Go, which later was used by the japanese airborne troops.

For a tank So-Ra were designed three variants of equipment:
• - The 37-mm cannon (for example, 37-mm gun type 94 used on the tank Ha-Go)
• the - machine-gun armament (either a light weight of 7.7-mm machine gun, or some harder),
• - the flamethrower.
The power unit should be formed by the air-cooled engine with a power of 50 pcs, which according to calculations should allow for the tank So-Ra to develop the maximum speed on highway 42 km/h.

Kluzáková part - Maeda Ku-6 - is interpreted at least two ways, since the original project is not yet known - project documentation either not survived the war, or has not yet been found.

The first (probably older) version presents the idea of the beam tail surfaces, mounted to the rear of the tank and the wings, fastened to the hull So - Ra on both sides of the tower. In this version have GTC installed on the top part of the SOP. The mechanic-the driver/pilot handled the control surfaces with the help of ropes, the stretching of the tank. In the frontal part of the hull of the tank was placed eye fastening of the towing rope.
The second version of the So-Ra was equipped with stands, located on both sides of the torso. To the upper parts of the uprights was attached to the wing, with which were also connected by two beams. The rear parts of the beams were equipped with a vertical tail surfaces and connected to each other low stored horizontal tail surfaces. Basically in this option, So-Ra had to be placed under the wing.

When landing, the tank had to drop the wings and do it together with the paratroopers.

In rokce 1945 was Ku - 6 is completed, and the company Mitsubishi has produced the model So –Ra in 1 : 1 scale. In the course of a short time have been carried out flight tests, during which, as expected, it was used mock-up, loaded to the weight 2812 kg, so that mimicked the weight of the actual tank So-Ra. As the towing machine was used bomber Mitsubishi Ki-21. Tests soon showed the problems of the concept: in the Kuro-Sha were serious problems with the ovládatelností in-flight, the mechanic-the driver/pilot had insufficient views, and the landing was extremely hard.

Another problem was that So-Ra couldn't resist the heavier and stronger tanks. Any potential benefit Ku-6 decreased to a minimum with the advent of the glider Kokusai Ku-7 Manazuru (真鶴 - Crane, allied codename "Buzzard"), whose construction was started in the year 1942, and whose first flight took place in August 1944. The load capacity of the glider Ku-7 was 7257 kg and the dimensions of the fuselage to allow placed inside a light tank Ha-Go, the weight of which amounted to 6713 kg. In connection with obvious problems Kuro-Sha was the directive of the imperial army approved the decision to stop work on this proposal and focus on Ku-7.

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Předpokláaný vzhled první verze stroje
Maeda Ku 6 - Kluzák Maeda Ku - 6 s tankem SO - Ra Pramen

Kluzák Maeda Ku - 6 s tankem SO - Ra Pramen
Maeda Ku 6 - Pramen


Maeda Ku 6 - Pramen


Maeda Ku 6 - Druhá verze stroje


Druhá verze stroje


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This post has not been translated to English yet. Please use the TRANSLATE button above to see machine translation of this post.

Stručný popis:
Japonská armáda se v době, kdy se připravovala na další expanzi v Číně a později také v Tichomoří, zcela vážně zabývala ideou létajícího tanku nebo kluzáku, schopného přepravit takový tank.
Podobnou úlohu řešili např. konstruktéři v SSSR, kteří pracovali na obdobném projektu AT-40 KT.

Továrna Mitsubishi navrhla a záhy vyrobila pro tento účel lehký tančík Ku-Ro, tančík byl aerodynamicky tvarovaný a měl závěsy, do kterých se dala upevnit křídla a ocasní plochy. Výzkum probíhal od roku 1939 a trval přes celou válku, až byl nakonec celý projekt ukončen, protože Císařská armáda podobný stroj již nepotřebovala. Zřejmě byl postaven pouze jeden prototyp, ale nedokázal jsem zjistit zda byl proveden nějaký vzlet.
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