Hiro H1H

H1H
Late production H1H1 on a launching trolly.
General information
TypePatrol flying boat
National originJapan
ManufacturerHiro Naval Arsenal
Primary userIJN Air Service
Number built65
History
Manufactured1927–1934
First flight1925
Retired1938
Developed fromFelixstowe F.5

The Hiro H1H (or Navy Type 15) was a 1920s Japanese bomber or reconnaissance biplane flying boat developed from the Felixstowe F.5 by the Hiro Naval Arsenal for the Imperial Japanese Navy. The aircraft were built by Hiro, the Yokosuka Naval Arsenal and Aichi.