Nakajima G8N Renzan “Rita” manuals
A historical reference collection on the Nakajima G8N Renzan heavy bomber, known by the Allied reporting name “Rita”. This digital collection contains two unique manuals, including a Japanese prototype ground-vibration test report and an English photographic collection, supported by a supplied technical profile.
Collection contents
- G8N1 Renzan Prototype No. 1 Ground Vibration Test Report, 試製連山 第1號機 地上振動試驗, Japanese
- G8N Photographic Collection, English
Technical reference
The supplied profile describes an all-metal mid-wing airframe with a high-aspect-ratio wing, laminar-flow design priorities and a single-fin tail. It identifies four Nakajima NK9K-L Homare 24 18-cylinder radial engines with a reported 2,000 hp takeoff rating and Hitachi Type 92 turbosupercharger systems, while also discussing the cooling and thermal-management challenges attributed to the tight cowl installation.
Reference figures supplied in the report include a maximum speed of 592 km/h at 8,000 m, cruising speed of 360–390 km/h, service ceiling of 10,200 m, ferry range of 7,464 km, combat radius of 3,700 km, empty weight of 17,400 kg and maximum takeoff weight of 32,150 kg.
Additional sections summarize the aircraft’s powered defensive-turret layout, post-war Allied technical evaluation of prototype FE-2210 / T2-2210, and a comparative discussion of the G8N and Boeing B-29 in areas including pressurization, turret control, wing architecture, bomb load and structural weight.
Historical reference notice
This collection is intended for aviation history, research, restoration and archival study. It is not current approved airworthiness data, operating approval, maintenance authorization or weapons guidance. The technical figures, defensive-layout descriptions and Allied-evaluation claims are reproduced as supplied archival research and have not been independently verified here. Users must verify provenance, rights, export requirements and applicability before relying on any document or report, particularly material identified as confidential or military archival material.