Hiro H3H1

Hiro H3H1 / 広廠 H3H1・九〇式一号飞行艇
     
Název:
Name:
Hiro H3H1 (Námořní létající člun typu 90-1) Hiro H3H1 (Navy Type 90-1 Flying-Boat)
Originální název:
Original Name:
九〇式一号飞行艇
Kategorie:
Category:
průzkumný/pozorovací letoun reconnaissance/scout aeroplane
Výrobce:
Producer:
DD.MM.1931-DD.MM.1931 Hiro Naval Arsenal, Hiro /
Období výroby:
Production Period:
DD.MM.1931-DD.MM.1931
Vyrobeno kusů:
Number of Produced:
1
První vzlet:
Maiden Flight:
DD.MM.1931
Osádka:
Crew:
9
Základní charakteristika:
Basic Characteristics:
 
Vzlet a přistání:
Take-off and Landing:
CTOL - konvenční vzlet a přistání CTOL - conventional take-off and landing
Uspořádání křídla:
Arrangement of Wing:
jednoplošník monoplane
Uspořádání letounu:
Aircraft Concept:
klasické conventional
Podvozek:
Undercarriage:
pevný fixed
Přistávací zařízení:
Landing Gear:
člunový trup flying boat
Technické údaje:
Technical Data:
 
Hmotnost prázdného letounu:
Empty Weight:
7900 kg 17417 lb
Vzletová hmotnost:
Take-off Weight:
11900 kg 26235 lb
Maximální vzletová hmotnost:
Maximum Take-off Weight:
? kg ? lb
Rozpětí:
Wingspan:
31,047 m 101ft 10,5in
Délka:
Length:
22,705 m 74ft 6in
Výška:
Height:
7,518 m 24ft 8in
Plocha křídla:
Wing Area:
137,00 m2 1474.703 ft2
Plošné zatížení:
Wing Loading:
86,96 kg/m2 17.81 lb/ft2
Pohon:
Propulsion:
 
Kategorie:
Category:
pístový piston
Počet motorů:
Number of Engines:
3
Typ:
Type:
Micubiši Typ Hi, kapalinou chlazený vidlicový dvanáctiválec o vzletovém výkonu 478 kW (650 k) a maximální výkon 581 kW (790 k).
Vrtule čtyřlisté, dřevěné vrtulové listy s pevným úhlem náběhu o průměru 3 660 mm.
Mitsubishi Type Hi twelve-cylinder Vee water-cooled engines rated at 641 hp for take-off and 779 hp maximum power output,
driving a four-blade wooden fixed-pitch propellers of the diameter 12ft.
Objem palivových nádrží:
Fuel Tank Capacity:
7 400 l + 600 l oleje 1,627.8 UK gallons and 132 UK gallons oil
Výkony:
Performance:
 
Maximální rychlost:
Maximum Speed:
228 km/h v 0 m 141.7 mph in 0 ft
Cestovní rychlost:
Cruise Speed:
157 km/h v 1000 m 97.6 mph in 3281 ft
Rychlost stoupání:
Climb Rate:
? m/s ? ft/min
Čas výstupu na výšku:
Time to Climb to:
17,0 min do 3000 m 17,0 min to 9843 ft
Operační dostup:
Service Ceiling:
4500 m 14764 ft
Dolet:
Range:
1500 km 932.1 mi
Maximální dolet:
Maximum Range:
2050 km 1273.8 mi
Výzbroj:
Armament:
8x pohyblivý kulomet Type 89 Model 1 ráže 7,7 mm (zdvojené kulomety)
1x zdvojený v předním střelišti
1x zdvojený v ocasním střelišti a
2x zdvojený ve střelištích po obou bocích
Pumový náklad: do hmotnosti 1 000 kg (2x 500 kg nebo 4x 250 kg).
One twin flexible 0.303 inch Type 89 Model 1 machine-guns in open bow position,
two twin flexible 0.303 inch Type 89 Model 1 machine-guns amidships either side and
one twin flexible 0.303 inch Type 89 Model 1 machine-guns in open tail poisition.
Bomb load: Up to 2,204 lbs of bombs (two 1,102 lb or four 551 lb bombs).
Uživatelské státy:
User States:
Poznámka:
Note:
九〇式一号飞行艇 - Námořní létající člun Type 90-1


Letová vytrvalost: 13,0 h


Námořní letectvo nebylo s tímto typem spokojeno a proto nedošlo k sériové výrobě.
Upřednostněn byl konkurenční Typ 90-2 Kawanishi H3K1 Belle.
九〇式一号飞行艇 - Navy Type 90-1 Flying-Boat


Endurance: 13 hours


The new flying-boat was a cantilever monoplane embodying the proven Wagner box-spar acquired from Rohrbach, and hull features used in the Supermarine Southampton and the previously built Hiro Type 89 Flying-boats. The main requirements of the Kaigun Koku Hombu were that it was to be capable of flying on two engines and that it must have good water-borne characteristics and this flying-boat was the first Japanese Navy aircraft capable of carrying a One tonne bomb load.
The test aircraft was completed at the Hiro Naval Arsenal in 1931 and given the the designation Type 90-1 Flying-boat, short designation (H3H1). (Another aircraft that year, the Type 90-2 Flying-boat - Kawanishi H3K1 Belle). The H3H1, was then flown to Yokosuka where exhaustive flight testing was undertaken by Lieut-Cdr Daizo Nakajima.To improve flying control, auxiliary vertical fins were added to the tailplane, and struts to the horizontal surfaces were relocated so that the angle of incidence could be adjusted.
By 1933, without proving satisfactory, the aircraft was relegated to use as a flying testbed for the 950 hp Mitsubishi Shinten fourteen-cylinder double-row air-cooled engine before it was retired from service.
Zdroje:
Sources:
William Green, Warplanes of the Second World War, Volume Five: Flying Boats, London, Macdonald & Co.(Publishers) Ltd., 1962, Revised and reprinted 1968, pp. 136-137, ISBN 356-01449-5.
Robert C. Mikesh and Shorzoe Abe, Japanese Aircraft 1910-1941, Naval Institute Press Annapolis, Maryland 21402, 1990, ISBN: 1-155750-563-2
Tadeusz Januszewski a Kryzysztof Zalewski, Japońskie samoloty marynarski 1912-1945, tiel 2, Lampart, rok 2000, ISBN 83-86776-00-05
archiv autora
URL : https://www.valka.cz/Hiro-H3H1-t48742#189754 Version : 0
Brief history:

The designers and engineers of the naval arsenal in Hiru (Dai-Juichi Kaigun Kokusho) at the time the largest experience in building flying boats, therefore, in the whole of Japan. These experiences gained in the design and manufacture of licensing the Felixstowe F. 5, an experimental flying boat R-3, and the subsequent production of Type 15 (H1H) and Type-89 H2H.
Therefore, the commander of this device Rear admiral (Kaigun Šošo) Juzuru Hiraga issued in 1930 to their subordinates the instruction to the development and production of třímotorového monoplane. The seaplane should be able to fly on two engines, and as the first japanese naval aircraft should be able to carry a bomb load weighing 1 000 kg and first and foremost should be the first purely japanese aircraft with all-metal structures. All design work and production of prototype drove the Frigate captain (Kaigun Čusa) Misao Wada, the project work was in charge of chief engineer lieutenant commander (Kaigun Šosa) Jun Okamura.

The new flying boat was completed in 1931, but although supposed to be a purely japanese construct, not completely. Metal spar wings have been a proven design element obtained from the Rohrbachu (Wagner's torsion box), the hull is again similar to the british flying boat Southampton. Great emphasis was placed on good nautical qualities of the boat parts of the hull. Navy aircraft allocated the designation of a Naval seaplane of the type 90-1, or the abbreviated designation of the H3H1. Numeral 1 in the model designation distinguished this type from dvouplošné construction company Seibeie Kawanišiho, which was designated as a Naval seaplane type 90-2 or also H3K1.
The only prototype of the H3H1 was flown to the naval base in Jokosuce, where he was very extensively tested, these flight tests led the lieutenant commander (Kaigun Šosa) Daizo Nakajima. During flight tests it was revealed many of the shortcomings that designers tried to remove, so, for example, the fluid cooler has been moved to the back under the engines, tried with different propellers and improve the stability of the flight were installed auxiliary vertical tail surfaces, further changed the location of the struts of the horizontal tail surfaces. Every major change was marked by the addition of further numbers behind the type designation, so the last marking of this seaplane was a Naval seaplane type 90-1-4.

In 1933, after a not very successful end of the tests, was preferred competitive seaplane Kawanishi H3K1, which was adopted into armament (in the end it was made only a few aircraft of this type). Untapped Hiro H3H1 was modified as a flying laboratory for a new čtrnáctiválcové engines Mitsubishi Šinten, after the completion of this task was a seaplane permanently disabled.

We evaluate if this seaplane with the passage of time, so we have to admit, that was marked by a much more modern construction than the preferred biplane Kawanishi H3K1 and its importance consisted in the fact that the designers of this seaplane gained valuable experience for the later all-metal aircraft construction.

sources:
Robert C. Mikesh and Shorzoe Abe, Japanese Aircraft 1910-1941, Naval Institute Press Annapolis, Maryland 21402, 1990, ISBN: 1-155750-563-2
Tadeusz Januszewski and Kryzysztof Zalewski, Japońskie samoloty marynarski 1912-1945, tiel 2, Lampart, 2000, ISBN 83-86776-00-05
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Fotografie Hiro (Hirosho) H3H1 Type 90
Zdroj: archiv autora
Hiro H3H1 -


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