In 1921(10th of the Taisho era), Yokosho began to design the Navy Type 10 Reconnaissance seaplane with British Short design team.
In 1923, 2 aircrafts were completed, but they were too heavy to use. Later modified light weight B type was made and showed enough performance to satisfy the IJN's requirement and re-designed as 14-shiki reconnaissance seaplane.
Maximum speed : 79 to 85kt, Range : 1125n.m, Engine Lorrane-1 liquid coollng V12 400hp