The Hiro H4H (or Hiro Navy Type 91 Flying Boat) was a 1930s Japanese bomber or reconnaissance monoplane flying boat designed and built by the Hiro Naval...

H4H may refer to: Habitat for Humanity, an international housing charity Help for Heroes, a British veteran's organization Hiro H4H, a Japanese interwar...

Navy flying boat maritime reconnaissance Hiro H3H 1 1931 Navy flying boat maritime reconnaissance Hiro H4H 47 1933 Navy flying boat maritime reconnaissance...

powerful engine, the Hiro Type 90 600 hp water-cooled W-12 had also been developed, producing 600 hp. Aichi E10A Aichi E11A Hiro H4H Kawanishi E7K Mitsubishi...

Navy Hiro G2H land-based bomber in 1933. The Type 94 engine was the eighteen-cylinder version of the Hiro Type 90 600 hp water-cooled W-12/Hiro Type 91...

Monoplane (Hiro Kaigun Kosho - Hiro Naval Arsenal) Hiro G2H Hiro H1H Hiro H2H Hiro H3H Hiro H4H Hiro H10H Hiro Navy Experimental 7-Shi Attack Bomber Hiro Navy...

reconnaissance seaplane Hiro H1H maritime reconnaissance bomber flying boat Hiro H2H maritime reconnaissance bomber flying boat Hiro H4H maritime reconnaissance...

Type 91 may refer to: Hiro Navy Type 91 flying boat, or Hiro H4H, a 1930s Japanese bomber or reconnaissance monoplane flying boat Nakajima Army Type 91...

submarine based floatplane Kawanishi E7K Alf 1933 reconnaissance seaplane Hiro H4H 1933 flying boat Nakajima E8N Dave 1934 reconnaissance seaplane Kawanishi...

The Hiro G2H (or Hiro Navy Type 95 Twin-engined Land-based Attacker) was a 1930s Japanese bomber or reconnaissance monoplane designed and built by the...