- Development Kawanishi E5K
- Operational history
- Variants
- Specifications (Type 90-3 / E5Y1 / E5K1)
- References
- Further reading
- External links
{{Use dmy dates|date=May 2011}}| name=Yokosuka E5Y | image= | caption= }}{{Infobox Aircraft Type | type=reconnaissance seaplane | national origin=Japan | manufacturer=Yokosuka Naval Air Technical Arsenal | designer= | first flight= | introduced=1930 | retired= | status= | primary user= | more users= | produced= | number built=20 | program cost= | unit cost= | developed from= | variants with their own articles=
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The Yokosuka E5Y (long designation: Yokosuka Navy Type 90-3 Reconnaissance Seaplane) was a single-engine Japanese seaplane used for reconnaissance. The E5Y was also built by Kawanishi as the E5K (long designation: Kawanishi Navy Type 90-3 Reconnaissance Seaplane) DevelopmentThe Yokosuka Type 90-3 (E5Y1) was a second-generation seaplane with a {{convert|450|hp|abbr=on}} engine based on an updated Yokosuka E1Y, developed at the Yokosuka Naval Arsenal in Kanagawa Prefecture, featuring two externally mounted floats. The Japanese Navy initially designated it as the Yokosuka Navy Type 14-2 Kai-1 Reconnaissance Seaplane, but production was undertaken by Kawanishi as the Kawanishi Navy Type 90-3 Reconnaissance Seaplane.[1] [2] By 1932, the Aichi AB-6 was under development to replace the E5Y / E5K seaplanes. Kawanishi E5KThe Kawanishi E5K1 or Kawanishi Type G was a large 1930s Japanese three-seat reconnaissance floatplane. The E5K1 was a production version with a {{convert|450|hp|kW|abbr=on}} Bristol Jupiter radial engine; 20 production aircraft were built. Two pre-production Type-14-2 Kai-1-Ds, powered by the Bristol Jupiter were built by Kawanishi under the company name Kawanishi Type G. Seventeen production aircraft were built as the Kawanishi Navy Type 90-3 Reconnaissance Seaplane (E5K1). Operational historyOn 25 May 1932 the IJN Seaplane Tender-Oiler NOTORO re-equipped with Kawanishi Navy Type 90-3 Reconnaissance Seaplanes as well as other tenders and battleships of the IJN. The E5K saw action during the Shanghai Incident from 28 January – 3 March 1932.[4] The Japanese seaplane tender Kamoi carried a complement of 12 E5Y aircraft. Variants- Yokosuka Navy Type 14-2 Reconnaissance Seaplane Kai-1
Prototype of the later Type-14-2 and Type 90-3 production aircraft, powered by a {{convert|450|hp|abbr=on}} Bristol Jupiter VIII radial engine. - Yokosuka Navy Type 14-2 Reconnaissance Seaplane Kai-1-C
Initial production aircraft powered by {{convert|450|hp|abbr=on}} Lorraine 12E Courlis W-12 water-cooled engines. - Yokosuka Navy Type 14-2 Reconnaissance Seaplane Kai-1-D
Later prototype aircraft with Jupiter engines in a lengthened nose. - Yokosuka Type 90-3 Reconnaissance Seaplane
Designation of production aircraft to have been built by the Yokosuka Naval Arsenal (Yokosho) - Kawanishi Type G
Company designation for two pre-production Type 14-2 Kai-1-Ds - Kawanishi Type 90-3 Reconnaissance Seaplane
Seventeen production aircraft, initially powered by Jupiter engines, with some later being re-engined with Hiro Type 91 520 hp water-cooled W-12 engines - Yokosuka E5Y1
Short designation of aircraft built at the Yokosuka Naval Arsenal, (a.k.a. Yokosho E5Y1) - Kawanishi E5K1
Short designation for the production aircraft built by Kawanishi Specifications (Type 90-3 / E5Y1 / E5K1){{Aircraft specs
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|height m=4.74
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|wing area sqm=55
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|empty weight kg=1850
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|gross weight kg=3000
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|lift kg=
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|more general=
|eng1 number=1
|eng1 name=Bristol Jupiter VIII
|eng1 type=9-cyl. Air-cooled radial piston engine
|eng1 kw=
|eng1 hp=450
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|prop blade number=2
|prop name=wooden fixed pitch propeller
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|max speed kmh=178
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|cruise speed kmh=130
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|endurance=6.5 hours
|ceiling m=4050
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|time to altitude={{convert|3000|m|abbr=on}} in 33 minutes 20 seconds
|sink rate ms=
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|lift to drag=
|wing loading kg/m2=54.5
|wing loading lb/sqft=
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|power/mass=0.112 kW/kg (0.068 hp/lb)
|thrust/weight=
|more performance=
|guns= 2 x {{convert|7.77|mm|abbr=on|3}} fixed Type 89 machine-guns and 2 x {{convert|7.77|mm|abbr=on|3}} flexible Type 89 machine-guns
|bombs= max{{convert|250|kg|abbr=on|3}}
- 2 x {{convert|125|kg|abbr=on|3}}
- or 3 x {{convert|60|kg|abbr=on|3}}
- or 3 x {{convert|30|kg|abbr=on|3}}
|rockets=
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|lists=- List of military aircraft of Japan
- List of seaplanes and amphibious aircraft
|see also=
}}References1. ^{{cite web|url=http://www.j-aircraft.com/main/newkits/ijn.htm |title=Imperial Japanese Navy Aircraft |publisher=J-aircraft.com |accessdate=18 May 2011}}
2. ^1 {{cite book |last=Mikesh |first=Robert |title=Japanese Aircraft 1910–1941 |year=1990 |publisher=Putnam |location=London |isbn=978-0-85177-840-2 |author2=Shorzoe Abe|pages=278–279}}
3. ^{{cite book |title=The Illustrated Encyclopaedia of Aircraft |publisher=Orbis Publications|page=2234 |location=London}}
4. ^{{cite web|url=http://www.combinedfleet.com/Notoro_t.htm |title=Japanese Auxiliary Seaplane Tenders |publisher=Combinedfleet.com |accessdate=18 May 2011}}
Further reading- Crosby, Francis. The World Encyclopedia of Fighters & Bombers: An Illustrated History of the World's Greatest Military Aircraft, from the Pioneering Days of Air Fighting in World War I Through to the Jet Fighters and Stealth Bombers of the Present Day. London: Southwater, 2009. {{OCLC|809395697}}
External links{{commons category|Yokosuka aircraft}}- [https://web.archive.org/web/20110610130717/http://www.worldairforces.com/Countries/japan/JPNSampleUnknownPOPixs.pdf world air forces website]
{{Yokosuka aircraft}}{{Kawanishi aircraft}}{{Japanese Navy Reconnaissance seaplanes}}- List of seaplanes and amphibious aircraft
- List of military aircraft of Japan
7 : Floatplanes|World War II Japanese patrol aircraft|Yokosuka aircraft|Kawanishi aircraft|Biplanes|Japanese military reconnaissance aircraft 1930–1939|Single-engined tractor aircraft |