In 1930, the Imperial Japanese Navy Air Service's basic seaplane trainer was the Yokosuka K1Y or Type 13 Seaplane Trainer, which had been in use from 1925, and it instructed the First Naval Air Technical Arsenal based at Yokosuka to design a replacement.
Yokosuka | Yokosuka, Kanagawa | Yokosuka Naval District | Yokosuka R2Y | Yokosuka E14Y | United States Fleet Activities Yokosuka | Yokosuka Naval Arsenal | Yokosuka MXY7 Ohka | Yokosuka K5Y | Yokosuka K1Y | Naval Hospital Yokosuka Japan |