TheYokosuka E5Y (long designation:Yokosuka Navy Type 90-3 Reconnaissance Seaplane) was a single-engine Japanese seaplane used for reconnaissance. The E5Y was also built byKawanishi as the E5K (long designation:Kawanishi Navy Type 90-3 Reconnaissance Seaplane)
The Yokosuka Type 90-3 (E5Y1) was a second-generation seaplane with a 450 hp (340 kW) engine based on an updatedYokosuka E1Y, developed at theYokosuka Naval Arsenal inKanagawa Prefecture, featuring two externally mounted floats. The Japanese Navy initially designated it as theYokosuka Navy Type 14-2 Kai-1 Reconnaissance Seaplane, but production was undertaken by Kawanishi as theKawanishi Navy Type 90-3 Reconnaissance Seaplane.[1][2] By 1932, theAichi AB-6 was under development to replace the E5Y / E5K seaplanes.
TheKawanishi E5K1 orKawanishi Type G was a large 1930sJapanese three-seat reconnaissance floatplane.[3] The E5K1, a radial-engined twin-float seaplane, first flew in October 1931, but due to problems in development only 20 production aircraft were built.[3] The type entered service with theImperial Japanese Navy Air Service in April 1932 as theKawanishi Navy Type 90-3 Reconnaissance Seaplane.[3]
The E5K1 was a production version with a 450 hp (340 kW)Bristol Jupiter radial engine; 20 production aircraft were built.[3]
Two pre-production Type-14-2 Kai-1-Ds, powered by theBristol Jupiter were built by Kawanishi under the company nameKawanishi Type G. Seventeen production aircraft were built as theKawanishi Navy Type 90-3 Reconnaissance Seaplane (E5K1).
On 25 May 1932, the IJN seaplane tender-oilerNotoro was 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 theShanghai Incident from 28 January – 3 March 1932.[4] TheJapanese seaplane tenderKamoi carried a complement of twelve E5Y aircraft.
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 450 hp (340 kW)Bristol Jupiter VIII radial engine.
Yokosuka Navy Type 14-2 Reconnaissance Seaplane Kai-1-C
Initial production aircraft powered by 450 hp (340 kW)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-productionNavy Type 14-2 Reconnaissance Seaplane Kai-1-Ds.
Kawanishi Type 90-3 Reconnaissance Seaplane
Seventeen production aircraft, initially powered by Jupiter engines, with some later being re-engined withHiro 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
Crosby, Francis. (2009).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. Southwater.ISBN978-1-84476-917-9.OCLC809395697.
1 X as second letter is for experimental aircraft or imported technology demonstrators not intended for service,2 Hyphenated trailing letter (-J, -K, -L, -N or -S) denotes design modified for secondary role,3 Possibly incorrect designation, but used in many sources
