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Kawanishi K-200

Imperial Japan (1946)

Detailing the development and operational history of the Kawanishi K-200 Long-Range Jet-Powered Flying Boat Aircraft Proposal.

 Entry last updated on 5/22/2016; Authored by Staff Writer; Content ©

  Kawanishi K-200  
Picture of Kawanishi K-200 Long-Range Jet-Powered Flying Boat Aircraft Proposal

The Kawanishi K-200 jet-powered flying boat never materialized beyond the planning stage - the end of the war ended any design hopes for Japan.

The Japanese concern of Kawanishi made a name for itself in service to the Empire by delivering a healthy stable of serviceable floatplane and flying boat aircraft. Before the end of the war in August of 1945, and amidst Japan's worsening war situation, many desperate projects were undertaken by local firms in an effort to meet military requirements put forth. Kawanishi, either through a private initiative or at the behest of the Imperial Japanese Navy (IJN), began work on a new long-range flying boat design before the cessation of hostilities and this became the "K-200" which ultimately saw no prototypes completed, the project terminated with the end of the war.

Kawanishi found success with their conventionally-powered, four-engined H8K flying boat during the war and these served the IJN with distinction from January 1942 onward. With this big aircraft experience, the K-200 took shape as a high-winged development with outboard floats, a boat-like lower hull and traditional, single-finned tail unit. Instead of engines driving propeller blades as in the H8K, six turbojets were projected for power and arranged in two sets of three engine nacelles to be fitted over the wing mainplanes. The cockpit, heavily glazed, was fitted forward of the wings and aft of a nose cone assembly. The standard crew would most likely range between six and eight persons.

Since the K-200 only ever entered the planning stages very little concrete information went on to be finalized before the end. Its usefulness in service would have been limited - early-form Japanese turbojets were thirty devices and short on range though offering the necessary performance. Armament may have followed the established H8K arrangement being a mix of cannon and machine guns for both offensive- and defensive-minded actions - a dorsal turret and tail turret among key features most likely included. The aircraft's war load would have supported torpedoes, depth charges, mines and conventional drop bombs.

The illustration provided is a concept approach to the K-200 utilizing what was known of the design and elements seen in Kawanishi's past maritime products. Presented performance figures are pure estimates.
Any available statistics for the Kawanishi K-200 Long-Range Jet-Powered Flying Boat Aircraft Proposal are showcased in the areas immediately below. Categories include basic specifications covering country-of-origin, operational status, manufacture(s) and total quantitative production. Other qualities showcased are related to structural values (namely dimensions), installed power and standard day performance figures, installed or proposed armament and mission equipment (if any), global users (from A-to-Z) and series model variants (if any).
Kawanishi K-200 Specifications
National Flag Graphic
Imperial Japan
Year: 1946
Type: Long-Range Jet-Powered Flying Boat Aircraft Proposal
Manufacturer(s): Kawanishi - Imperial Japan
Production: 0
Supported Mission Types
Ground Attack
Close-Air Support
Airborne Early Warning
Electronic Warfare
Aerial Tanker
Passenger Industry
VIP Travel
Business Travel
Special Forces
Crew: 3
Length: 98.43 ft (30 m)
Width: 131.23 ft (40.00 m)
Height: 30.35 ft (9.25 m)
Empty Weight: 44,974 lb (20,400 kg)
MTOW: 9,259 lb (4,200 kg)

Installed Power
6 x Ne-330 turbojet engines developing 2,865 thrust each (estimated).

Standard Day Performance
Maximum Speed: 360 mph (580 kph; 313 kts)
Maximum Range: 1,389 mi (2,235 km; 1,207 nm)
Service Ceiling: 32,005 ft (9,755 m; 6.06 mi)

1 x 20mm Type 99 cannon in nose
2 x 7.7mm Type 99 / Type 92 machine guns at waist / beam positions (one gun per position).
1 x 20mm Type 99 cannon in tail turret

Unknown stores weight limit consisting of torpedoes, depth charges and conventional drop bombs.

Operators List
Imperial Japan (proposed)

Series Model Variants
• K-200 - Project Designation

Supported Weapon Systems
Graphical image of an aircraft medium machine gun
Graphical image of an aircrat automatic cannon
Graphical image of an aircraft aerial torpedo
Graphical image of an aircraft conventional drop bomb munition