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The Aichi E3A was a reconnaissance seaplane developed in Germany as the Heinkel HD 56 to operate from warships of the Imperial Japanese Navy, which designated it the Type 90-1 Reconnaissance Seaplane. It was a conventional single-bay biplane with staggered wings braced by N-type interplane struts. The pilot and gunner sat in tandem, open cockpits.

E3A (HD 56)
Role Reconnaissance seaplane
National origin Germany/Japan
Manufacturer Aichi Kokuki
Design group Heinkel
First flight 1929
Primary user Imperial Japanese Navy
Number built 12

Design and development


Aichi Tokei Denki requested a design for a reconnaissance seaplane from Heinkel to enter in an IJN competition. Heinkel built a single HD 56 prototype that was evaluated against the Nakajima E4N and the Kawanishi E5K. The Heinkel design was announced the winner in 1931, on the condition that Aichi would address some shortcomings, particularly a lack of range. Refined versions of the "losing" Nakajima and Kawanishi designs would eventually see production, with the Nakajima design being built in far greater numbers.

Modifications to the HD 56 by Aichi included reductions in length and span, the replacement of the prototype's Wright Whirlwind with a locally-built Hitachi Tempu, and numerous detail changes. Flight tests were carried out at Nagoya in August 1931, and the type was accepted into service the following year. E3As were still in service aboard Sendai class cruisers at the beginning of the Second Sino-Japanese War.


Specifications (E3A1)


Data from Japanese Aircraft 1910-1941 [1]

General characteristics

Performance

Armament


Notes


  1. Mikesh and Abe 1990, p.68.

References



На других языках


[de] Aichi E3A

Die Aichi E3A war ein katapultierfähiges Schwimmerflugzeug, welches von den Ernst Heinkel Flugzeugwerken als Heinkel HD 56 konstruiert wurde.
- [en] Aichi E3A

[it] Aichi E3A

L' Aichi E3A (九〇式一号水上偵察機 Kyū rei-shiki ichi-gō suijō teisatsu-ki?, Idrovolante da osservazione tipo 90-1) era un idroricognitore marittimo imbarcato prodotto dall'azienda giapponese Aichi Tokei Denki KK negli anni trenta.

[ru] Aichi E3A

Aichi E3A — японский самолёт-разведчик[1], разработанный немецкой компанией Heinkel под наименованием Heinkel HD 56.



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