| |
| | Nakajima B5N |
 | | One Nakajima Hikari 2 nine-cylinder air-cooled radial rated at 700 hp for take-off, and 800 hp at 3,500 m, driving a three-blade variable-pitch propeller (first prototype). |
 | | One Nakajima Hikari 3 nine-cylinder air-cooled radial rated at 770 hp for take-off, and 840 hp at 3,000 m, driving a three-blade constant-speed metal propeller (B5N1). |
 | | One Nakajima NK1B Sakae 11 fourteen-cylinder air-cooled radial rated at 1,000 hp for take-off, and 970 hp at 3,000 m, driving a three-blade constant-speed metal propeller (B5N2). |
| www.combinedfleet.com /ijna/b5n.htm (186 words) |
|