Nakajima Ha219
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 (IJAAF) 2,461 hp (1,835 kW) 18-cylinder air-cooled radial engine, used on the Tachikawa Ki-94-II, Nakajima Ki-84-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 alternative designation for the Ha-44 model 12 Ha-44 Unified (IJAAF & IJNAS) designation system Ha-44 model 11 A prototype turbocharged 2,400 hp (1,800 kW) engine for the Ki-87.