The Nakajima Ha219, (also known as the Ha-44 under the unified designation system, BH by the company and NK11A by the Imperial Japanese Navy Air Service (IJNAS)), was a late war

Imperial Japanese Army Air Force The Imperial Japanese Army Air Service (IJAAS) or Imperial Japanese Army Air Force (IJAAF; ja, 大日本帝國陸軍航空部隊, Dainippon Teikoku Rikugun Kōkūbutai, lit=Greater Japan Empire Army Air Corps) was the aviation force of the Im ...

(IJAAF) 18-cylinder air-cooled radial engine, used on the Tachikawa Ki-94-II,

Nakajima Ki-84 The is a single-seat fighter flown by the Imperial Japanese Army Air Service in the last two years of World War II. The Allied reporting name was "Frank"; the Japanese Army designation was . The Ki-84 is generally considered the best Japanese ...

-N and Nakajima Ki-87.

Variants and designations

''Data from:'' Japanese Aero-Engines 1910-1945 ;BH: Company designation ;Ha219: IJAAF Hatsudoki designation ::Ha219Ru fitted with a large

turbo-charger In an internal combustion engine, a turbocharger (often called a turbo) is a forced induction device that is powered by the flow of exhaust gases. It uses this energy to compress the intake gas, forcing more air into the engine in order to pro ...

alternative designation for the Ha-44 model 12 ;Ha-44: Unified (IJAAF & IJNAS) designation system ::Ha-44 model 11 A prototype turbocharged engine for the Ki-87. ::Ha-44 model 12 Similar to the Model 11 and probably sporting a 16-bladed cooling fan in the cowling intake. ::Ha-44 model 13 A planned variant to power the Navy 20-shi A Carrier Fighter ;NK11A: Planned engines for a scaled down Nakajima G10N1 (Navy Experimental Heavy Bomber ''Fugaku'') (''Fugaku'' - Mount Fuji)

Applications

A total of around 10 engines were built, but the engine suffered from over-heating at low speeds and required large amounts of maintenance. Around 7 were issued to the Kitai squadron in late 1945 and used on the new Ki-84-N, lacking the supercharger installed on the Ki-94-2 and Ki-87. most are believed to have been scrapped or destroyed after the war along with documentation. * Nakajima Ki-87 * Nakajima G10N1 (Navy Experimental Heavy Bomber ''Fugaku'') *

-N * Tachikawa Ki-94-2

Specifications (Ha219 / BH / NK11A / Ha-44)

References

{{Imperial Japanese Navy aero engines Aircraft air-cooled radial piston engines 1940s aircraft piston engines Nakajima aircraft engines