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Nakajima E8N

From Wikipedia, the free encyclopedia
Japanese reconnaissance aircraft
E8N
General information
TypeShip-bornereconnaissanceseaplane
ManufacturerNakajima Aircraft Company
Primary userIJN Air Service
Number built755
History
ManufacturedOctober1935-1940
Introduction date1935
First flightMarch1934

TheNakajima E8N was a Japanese ship-borne,catapult-launched,reconnaissanceseaplane of theSecond Sino-Japanese War. It was a single-engine, two-seatbiplane with a central main-float and underwing outriggers. During thePacific War, it was known to the Allies by thereporting name "Dave". This aircraft was identified by the British as the Nakajima KT-95 Dave.[1]

Design and development

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The E8N was developed as a replacement for the same company'sE4N and was essentially an evolutionary development of the earlierreconnaissance seaplane, with revised wings of lesser area and taller tail surfaces. Sevenprototypes were constructed, under the company designationMS, first flying in March 1934.[2] These were duly engaged in comparative trials against competitors fromAichi andKawanishi, with the E8N being the preferred option due to its superior manoeuvrability and ruggedness.[3]

Operational history

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The MS was ordered into production, designatedNavy Type 95 Reconnaissance Seaplane Model 1 in October 1935.[4] A total of 755 E8Ns were built by Nakajima and Kawanishi, production continuing until 1940.[5] It was subsequently shipped aboard all thecapital ships then in service, 16cruisers and fiveseaplane tenders.[3]

It was used successfully in the Second Sino-Japanese War not only for reconnaissance, but also fordive-bombing andartillery spotting.[5]

One E8N was purchased in early 1941 by the German Naval Attache to Japan, Vice-AdmiralPaul Wenneker, and dispatched on board theKM Münsterland to rendezvous with the German auxiliary cruiserOrion at theMaug Islands in the Marianas.[3] The meeting occurred on 1 February 1941, andOrion thus became the only German naval vessel of the Second World War to employ a Japanese float plane.

TheRoyal Thai Navy placed an order for eighteen E8Ns in 1938.[3] After delivery in 1940, they were reclassified as the BRN-1, but did not see any combat action until 1945, responding to the AlliesOperation Livery.[3] One BRN-1 was totally destroyed and two others were written off. The remaining fifteen served on after the war until lack of spare parts resulted in their decommissioning and scrapping.[3]

Some aircraft remained in service with the fleet at the outbreak of the Pacific War, and one flew reconnaissance from thebattleshipHaruna during theBattle of Midway. In general, though, they were soon replaced by more modern aircraft such as theAichi E13A and theMitsubishi F1M and reassigned to second-line duties, such as a seaplane trainer, communications and liaison work.[5][3]

Variants

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E8N1
Initial production type, powered by 433 kW (580 hp)Nakajima Kotobuki 2 Kai 1radial engine.
E8N2
Improved production type, with more powerful (470 kW/630 hp) Nakajima Kotobuki Kai 2 engine.

Operators

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 Japan
Thailand
Nazi Germany

Specifications (E8N2)

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3-view drawing of the Nakajima E8N

Data from Japanese Aircraft of the Pacific War,[7] www.combinedfleet.com[8]

General characteristics

  • Crew: 2
  • Length: 8.81 m (28 ft 11 in)
  • Wingspan: 10.98 m (36 ft 0 in)
  • Height: 3.84 m (12 ft 7 in)
  • Wing area: 26.5 m2 (285 sq ft)
  • Empty weight: 1,320 kg (2,910 lb)
  • Gross weight: 1,900 kg (4,189 lb)
  • Powerplant: ×Nakajima Kotobuki 2-KAI 2 9-cylinder air-cooled radial piston engine, 470 kW (630 hp) for take-off
343 kW (460 hp) at 3,000 m (9,800 ft)
  • Propellers: 2-bladed fixed-pitch propeller

Performance

  • Maximum speed: 300 km/h (190 mph, 160 kn) at 3,000 m (9,800 ft)
  • Cruise speed: 185 km/h (115 mph, 100 kn)
  • Range: 898 km (558 mi, 485 nmi)
  • Service ceiling: 7,270 m (23,850 ft)
  • Time to altitude: 3,000 m (9,800 ft) in 6 minutes 31 seconds
  • Wing loading: 71.7 kg/m2 (14.7 lb/sq ft)
  • Power/mass: 0.2491 kW/kg (0.1515 hp/lb)

Armament

  • Guns: 1 × fixed, forward-firing 7.7 mmmachine gun and 1 × flexible 7.7 mm machine gun in rear cockpit
  • Bombs: 2 × 30 kg (66 lb) bombs

See also

[edit]

Related development

Aircraft of comparable role, configuration, and era

Related lists

References

[edit]
  1. ^Lawrence 1945, p. 186.
  2. ^Francillon 1970, p.408.
  3. ^abcdefgSmith, Peter (2014).Combat Biplanes of World War II. United Kingdom: Pen & Sword. p. 624.ISBN 978-1783400546.
  4. ^Francillon 1970, p.409.
  5. ^abcFrancillon 1970, p.410.
  6. ^World Air Forces – Historical Listings Thailand (THL), archived fromthe original on 25 January 2012, retrieved30 August 2012
  7. ^Francillon, Rene (1979).Japanese Aircraft of the Pacific War. London: Putnam & Company Limited. pp. 408–410.ISBN 0-370-30251-6.
  8. ^Joao, Matsuura."WWII Imperial Japanese Naval Aviation Page".

Bibliography

[edit]
Wikimedia Commons has media related toNakajima E8N.
  • Francillon, R.J.Japanese Aircraft of the Pacific War. London:Putnam, 1970.ISBN 0-370-00033-1.
  • Lawrence, Joseph (1945).The Observer's Book Of Airplanes. London and New York: Frederick Warne & Co.
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