Manshu Hikouki(Manpi) Ki-98

blackkite

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As Justo already posted, Manshu Hikouki(Manpi、満州飛行機) Ki-98 was finally planned to have turbo charger.
Turbo charger was located at after part of the fuselage bottom.
排気タービン過給器 : turbo charger, 中間冷却器 : inter cooler

http://digitalaviationart.com/skyraider3d/slice_and_dice_2.htm

In January 1943, after the cancellation of Ki-65 heavy fighter, the IJA ordered the Manshu aircraft to develop experimental pusher type Ki-98 fighter/attack aircraft which use HA-211 engine. The manshu aircraft began basic design from July 1943, the No.1 aircraft completion target was spring or early summer of 1945.

The first full scale mock up inspection by the IJA was held in December 1943 at Hoten(shenyang) factory of the Manshu aircraft, then Ki-98 was changed as the high altitude interceptor with turbo charger.
In 1944, partial wind tunnel test were finished, prototype fabrication began. In October 1943, after the second mock up inspection particularly engine and it's equipments by the IJA, the IJA cleared up their experimental programs, then terminated Ki-98 project.[/SIZE]

BTW the Manshu aircraft kept fabrication of Ki-98 No.1 aircraft. When the end of the war, wing and stabilizers were almost completed, fuselage was under fabrication. All of the aircraft parts and design documents were burned out by the Manshu aircraft to avoid Soviet union got them.
 

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Ki-98 specification

Engine : Turbo charged HA211Ru air cooling double radial 18 cylinders, 2200hp/take off, 2070hp/1000m, 1720hp/9500m,
Wing span : 11.26m, Length : 11.4m, Height : 4.3m, Wing area : 24square meter,
Empty weight : 3500kg, Gross weight : 4500kg, Wing loading : 187kg/square meter, Power loading : 2.72kg.hp,
Maximum speed : 730km/h(10000m), Time to reach 5000m : 5'30”, Service ceiling : 12000m, Endurance : 2.5h(500km/h),
Armaments : 37mm cannon×1, 20mm cannon×2, Crew : 1.
 

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Hi,


here is an artist drawing to Manshu Ki-98.
 

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hesham said:
Hi,


here is an artist drawing to Manshu Ki-98.

Hi there! May i use the image in an article that i am working on? Cheers

Cherry
 
CherryBlossom said:
hesham said:
Hi,


here is an artist drawing to Manshu Ki-98.

Hi there! May i use the image in an article that i am working on? Cheers

Cherry


It's from my pleasure Cherry,


you're welcome.
 
Hi!
Source : internet
 

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Hi! 1/72 scale model.
 

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We discussed similar twin-boom pushers over on the Mitsubishi J4M Senden "Luke" thread.
 
Thanks for sharing excellent drawings as usual, my brilliant Justo-san.:)
 
I'm still curious if in some archive somewhere, some photos of the prototype and/or mock-up exist. While the original material at the main plant was undoubtedly completely destroyed, I wonder about reports (such as proposals, progress updates, or authorization requests) that may have been sent to Japan when the project was still on-going that would likely include photos. Even the aircraft carrier 'Shinano', the only capital ship of WW2 to have never been officially photographed because of the secrecy of the project, still has at least two pictures taken of it. Seems out of place that a somewhat lesser project has no known photos attached to any part of its history, only drawings and a general narrative of its history. It's a big bone in my throat to not be able to see just how far the design got.
 
I'm still curious if in some archive somewhere, some photos of the prototype and/or mock-up exist. While the original material at the main plant was undoubtedly completely destroyed, I wonder about reports (such as proposals, progress updates, or authorization requests) that may have been sent to Japan when the project was still on-going that would likely include photos. Even the aircraft carrier 'Shinano', the only capital ship of WW2 to have never been officially photographed because of the secrecy of the project, still has at least two pictures taken of it. Seems out of place that a somewhat lesser project has no known photos attached to any part of its history, only drawings and a general narrative of its history. It's a big bone in my throat to not be able to see just how far the design got.

Welcome aboard Wowness,

the mock up and prototype were unfinished.
 
Hi!


 

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- Manshu Ki.65 and Ki.98


In February 1940 the IJA Aero-Technical Research Institute (Rikugun) requested several Japanese aircraft manufacturers to develop a high-performance interceptor to replace the Ki.44.



Kawasaki received orders to develop the Ki.60 and the Ki.61 fighters powered by one 1,100 hp Ha-40 inline, liquid cooled engine. Nakajima developed the Ki.62 powered by one Ha-40 and the Ki.64 powered by one 1,050 hp Ha-102 radial, air-cooled engine. Mitsubishi proposed to modify the J2M Raiden to suit the needs of the IJA.



The new aircraft, named Ki.65, should be powered by a 1,080 hp Ha-102 Zuisei or a 1,850 hp Ha-101 Kasei radial engines. Mitsubishi hoped to have its first prototype completed in March 1942, but the firm was so overworked getting ready for the war that the IA decided to transfer the project to Manshu Hikoki Seizo K.K. in the spring of 1941.

The Koku Hombu suggested using a 1,850 hp Ha-111 engine for the prototype and a 2,200 Ha-43/Ha-211 18-cylinder double-star radial engine for the production version. The diameter of the Ha-211 was 11 cm shorter than that of the Ha-101 used by the Raiden, allowing Manshu designers to use a reduced front section fuselage, shortening the shaft extension. Increased engine power allowed a new wing with increased span and surface to improve high-altitude manoeuvrability.



Late in 1942 the Koku Hombu issued a heavy fighter specification, calling for one high-altitude interceptor that could be modified for use in ground close-support and anti-landing ships duties. The armour required for this type of attacks and the weight of the armament required the use of very powerful engines, so most of the projects presented (Kawasaki Ki.102, Mitsubishi Ki.83 and Rikugun Ki.93) were twin engine airplanes.



The firm Manshu Hikoki Seizo K.K. decided to adopt the aerodynamic solutions of the Focke-Wulf with BMW 803A for its single engine project Ki.98, which could meet the specification with half the power of the Ki.83. By 1941, the German firm BMW had developed a 4,500 hp, 28 cylinder, 4-row radial, liquid-cooled monster engine called BMW 803.



Following the cancellation of the Focke-Wulf 238 bomber project, Kurt Tank's team designed a 9,000 kg high-altitude interceptor powered by one BMW 803A with two-stage, four-speed supercharger. The twin boom configuration allowed the installation of a heavy engine in the centre of gravity of the aircraft, which improved manoeuvrability and allowed to build smaller airframes, with material and weight savings. The forward section of the fuselage allowed the installation of heavy non-synchronized cannons with dual use, anti-tank and anti-bomber.

The main drawback of this configuration was the cooling of the engine; therefore, it was necessary to design a new tricycle landing gear and a bail-out system for the pilot. In July 1943, the IJA authorized the construction of a prototype, powered by one 2,200 hp Ha-211-III air-cooled radial engine and armed with one 37 mm Ho-204 and two 20 mm Ho-5 cannons. In the spring of 1944, the Koku Hombu was informed of the operational characteristics of the new Ru-303 turbo-supercharger, which Mitsubishi would begin producing in 1945.



The IJA decided to prioritize the construction of the high-altitude version of the 1942 specification and instructed Manshu that the Ki.98 should be for modified B-29s interception duties, powered by one Ha-211 Ru turbocharged engine. Manshu expected to have the prototype finished by mid1945, but when the Red Army began the invasion of Manchuria in August, the plane was destroyed, along with all project documentation to avoid capture by the Soviets.



Mitsubishi Ki.65 technical data

Wingspan: 10.8 m, length: 9.5 m, height: 3.81 m, wing area: 20 sq.m, max speed: 620 kph, max weight: 2,720 kg, ceiling: 10,000 m, endurance: 7.5 hr with drop tank, engine: one 1,530 hp Mitsubishi Ha-101 Kasei radial, armament: 2 x 20 mm Ho-5 cannons in the wings and two 7.7 mm Type 97 light machine guns in the nose.



Manshu Ki.65 technical data

Wingspan: 12.5 m, length: 9.7 m, height: 2.97 m, wing area: 24 sq.m, max speed: 680 kph, max weight: 4,160 kg, engine: one 2,200 hp Mitsubishi Ha-211 radial, armament: 2 x 20 mm Ho-5 cannons in the wings and two 12.7 mm Ho-103 heavy machine guns in the nose.

Manshu Ki.98 technical data

Wingspan: 11.26 m, length: 11.40 m, height: 4.30 m, wing area: 24 sq.m, max speed: 731 kph, max weight: 4,500 kg, ceiling: 10,000 m, range: 1,250 km.
 

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Welcome aboard Wowness,

the mock up and prototype were unfinished.
I'm aware neither were finished. That wasn't my inquiry.
It was whether or not they were photographed and if so, where those photos might be. They don't have the be completed to have their pictures taken.
 

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