| E6Y | |
|---|---|
| Role | Submarine-based reconnaissance aircraft |
| National origin | Japan |
| Manufacturer | Yokosuka Naval Air Technical Arsenal |
| First flight | 1929 |
| Introduction | 1933 |
| Retired | 1943 |
| Status | Retired |
| Primary user | Imperial Japanese Navy |
| Number built | 10 |
The Yokosuka E6Y (long designation: Yokosuka Navy Type 91-1 Reconnaissance Seaplane (九一式水上偵察機)) was a Japanese submarine-based reconnaissance seaplane developed at the Yokosuka Naval Air Technical Arsenal for the Imperial Japanese Navy during the 1920s. The prototype first flew as the Yokosho 2-Go (long designation: Yokosuka Arsenal No. 2 Reconnaissance Seaplane (横廠式二号水上偵察機)) in 1929.
The aircraft was a single-seat biplane that could be quickly assembled and disassembled so that it could be stored on board a submarine. Two prototypes were built that differed in power plant and design details. Eight production machines followed with the designation E6Y built by Kawanishi in the 1930s and served with the Japanese submarine aircraft carriers I-5, I-6, I-7 and I-8. They saw limited action during the January 28 incident and the Second Sino-Japanese War, the last example being retired in 1943.