| B1M | |
|---|---|
 | |
| General information | |
| Type | Torpedo bomber |
| Manufacturer | Mitsubishi |
| Primary user | Imperial Japanese Navy |
| Number built | 443 |
| History | |
| Introduction date | 1924 |
| First flight | 1923 |
| Variants | Mitsubishi 2MB1 |
The Mitsubishi B1M was a Japanese torpedo bomber of the 1920s, also known as the Navy Type 13 Carrier-Borne Attack Aircraft. It was designed and built by Mitsubishi and used in combat against China. The aircraft was used by the air services of the Imperial Japanese Navy and Imperial Japanese Army.