The second series of 42 “additional prototypes” was built between March and June 1944. The full-scale production of the Ki-84’s first and basic version Ki-84 Ko was launched in Ota in April 1944 when the production and flight testing of prototype machines was still ongoing. All Ki-84 Ko fighters featured offensive armament consisting of two fuselage-mounted Ho-103 12.7 mm guns and two Ho-5 20 mm cannons installed in the wings. Early-production examples were still powered by the Ha-45-11 engines, but those were soon replaced by the Ha-45-12 engines developing 1825 hp. Later on, a more advanced version of the engine was introduced – Ha-45-21 – which featured a more efficient supercharger and developed 1990 hp.
- 20 pages
- 10 color profiles
- Model drawings in scales: 1:48 & 1:72
- Masking Foil