- Yes
- No
Hiro H4H1 ( 九一式飛行艇)
The Hiro H4H1 (Hiro Navy Type 91 Flying Boat Model 1) is a Japanese flying boat created in 1932 as a successor to the Hiro H1H and Hiro H2H flying boats. The Hiro H4H1 was introduced to the service in 1933 and was decommissioned by 1941. During production between 1931 and 1937, about 47 Hiro H4H aircraft (H4H1 and H4H2) were produced.
History
In 1931, the Hiro plant began designing a successor to the Hiro H1H and H2H flying boats. The new flying boat was to be medium-sized, and Major Junzo Okamura was responsible for the project. Design work lasted until the end of 1931, and the construction of the prototype began in 1932. During the testing phase of the new flying boat, some design changes were made to it (for example, replacing the two-bladed propeller with a four-bladed one). The first prototype in 1933 was joined by two more prototypes. In the same year, it was decided that the version with the Hirohiro “Type 91 Type 2” W-type engine would go into production and the aircraft was accepted for service as the Hiro H4H1 (Hiro Navy Type 91 Model 1). The aircraft was produced at the Hiro and Kawanishi plants. These aircraft were used by maritime patrol and reconnaissance units. Shortly after the development of the Hiro H4H1, an improved version was created, designated H4H2. It is not known for sure how many of the 47 Hiro H4H aircraft were the H4H1 version, but from the photo material it appears that there were more of them (there are many more photos of the Hiro H4H1 than the H4H2). H4H aircraft were produced until 1937, when they were considered obsolete. In the years 1937-41(?) Hiro H4H aircraft took an active part in the Second Sino-Japanese War, patrolling the sea, guiding ship artillery to targets, conducting reconnaissance, and were also used as transport and mail aircraft.
Construction description
Hiro H4H1 is a medium-sized all-metal flying boat in a high-wing configuration. On the wing of the aircraft were mounted two Hirohiro “Type 91 Type 2” W-type engines with a take-off power of 600 HP (441 kW) each, which drove four-bladed wooden propellers with a diameter of 3,600 mm.The defensive armament of the Hiro H4H1 aircraft was a single 7.7 mm Lewis machine gun in the nose and a twin-coupled 7.7 mm Lewis machine gun located in the rear mount. The bomb load is two 250 kg bombs under the wings.
Technical sketches
General characteristics
- Crew: 6
- Length: 16,67 m
- Wingspan: 23,55 m
- Height: 5,81 m
- Wing area: 82.70 m2
- Empty weight: 4304 kg
- Take-off Weight: 7500 kg
- Maximum Take-off Weight: 8020 kg
- Powerplant: 2 x Hirohiro “Type 91 Typ 2” Type W ,liquid-cooled twelve-cylinder engines with a take-off power of 600 HP (441 kW) each
- Propellers: four-bladed wooden propellers with a diameter of 3,600 mm
Performance
- Maximum speed: 208 km/h or 222 km/h
- Cruise Speed: 158 km/h
- Range: 2000 km
- Maximum Range: ?
- Service ceiling: 4970 m
- Time to Climb to: 18,0 min to 3000 m
- Climb Rate: ?
Armament
- Guns:
- 1 x 7.7mm Movable Lewis Machine Gun in the Nose of the Aircraft
- 2 x 7.7mm Movable Coupled Lewis Machine Gun in the Rear Mount of the Aircraft
- Bombs:
- 2 x 250 kg bomb (under the wings)
Special thanks
Summary
The Hiro H4H1 is an interesting aircraft for Japan in War Thunder. This plane, although slow, would still have a use in the game. It is an interesting piece of Japanese flying boat development, so it would be a great premium addition or event. Of course, if there was a large decompression, it would also be suitable as a naval launch bomber for Japan. I encourage you to discuss in the comments and to share your own knowledge on this subject.
Finally, I apologize for the linguistic and logical errors because unfortunately English is not my main language and I had to use google translator.
Internet sources
九一式飛行艇 - Wikipedia
Hiro H4H - Wikipedia
Japanese Aircraft of WWII: Navy Type 91 Flying-boat (H4H1 and 2)
Hiro H4H1 : Hiro
Hiro Kosho H1H, H2H, H3H and H4H flying boats | Secret Projects Forum
The FriedrichFiles - Hiro/Hirosho H4H
Уголок неба ¦ Hiro H4H
Aéronavale japonaise
Book sources
- Mikesh, Robert C.; Abe, Shorzoe (1990).Japanese Aircraft, 1910-1941 page 98-99
Additional sources
Thank you for reading the suggestion, see you in the next one. Good luck pilots
