Trisha Shetty (Editor)

Hiro H1H

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Top speed
  
170 km/h

Length
  
15 m

Manufacturer
  
Hiro Naval Arsenal

Wingspan
  
23 m

Retired
  
1938

Hiro H1H httpsuploadwikimediaorgwikipediacommonsthu

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.

Contents

Design and development

Following licensed production of the Felixstowe F.5 for the Imperial Japanese Navy the company developed an improved version known as the H1H or Navy Type 15. The aircraft was built with three different engine types fitted, the Navy Type 15-I with a wooden hull had longer span upper wings and the Navy Type 15-II had four-bladed propellers. The H1H remained in front line naval service through the 1930s.

Variants

H1H1
Variant powered by two 450hp (336kW) Lorraine W-12 engines.
H1H2
Variant powered by either two 450hp (336kW) Lorraine W-12 or two 500hp (373kW) BMW VII engines.
H1H3
Variant powered by two 450hp (336kW) Lorraine W-12 engines.

Operators

 Japan
  • Imperial Japanese Navy Air Service

    • Specifications (H1H1)

    Data from Illustrated Encyclopedia of Aircraft

    General characteristics

  • Length: 49 ft 7 in (15.11 m)
  • Wingspan: 75 ft 4½ in (22.97 m)
  • Height: 17 ft 0½ in (5.19 m)
  • Wing area: 1345.53 ft2 (125 m2)
  • Empty weight: 8862 lb (4020 kg)
  • Gross weight: 13448 lb (6100 kg)
  • Powerplant: 2 × Lorraine 12E 12-cylinder piston engine, 450 hp (336 kW) each

    • Performance

  • Maximum speed: 106 mph (170 km/h)
  • Endurance: 14 hours  30 min

    • Armament

  • 2 × 7.7 mm (0.303 in) machine guns (one at bow cockpit and one midships)
  • up to 300 kg (661 lb) of bombs

    • References

    Hiro H1H Wikipedia
    (Text) CC BY-SA