page_title: Yokosuka D4Y
section_title: Specifications (D4Y2)
hierarchical_section_title: Yokosuka D4Y / Specifications (D4Y2)
caption_attribution_description: Instrument panel of a Yokosuka D4Y4 "Suisei". www.pacific-storm.net
context_page_description: The Yokosuka D4Y Suisei is a two-seat carrier-based dive bomber developed by the Yokosuka Naval Air Technical Arsenal and operated by the Imperial Japanese Navy from 1942 to 1945 during World War II. Development of the aircraft began in 1938. The first D4Y1 was complete in November 1940 and made its maiden flight at Yokosuka the following month.
  While the aircraft was originally conceived as a dive bomber, the D4Y was used in other roles including reconnaissance, night fighter and special attack. It made its combat debut as a reconnaissance aircraft when two pre-production D4Y1-Cs embarked aboard the Sōryū to take part in the Battle of Midway in 1942. It was not until March 1943 that it was accepted for use as a dive bomber. The early D4Y1 and D4Y2 featured the liquid-cooled Aichi Atsuta engine, a licensed version of the German Daimler-Benz DB 601, while the later D4Y3 and D4Y4 featured the Mitsubishi MK8P Kinsei radial engine.
  Like many other Japanese aircraft of the time, the D4Y lacked armor and self-sealing fuel tanks and it was not until the final variant, the D4Y4, that the aircraft was given bulletproof glass and armor protection for the crew and fuel tanks.
context_section_description: Data from The Encyclopedia of World Aircraft
  General characteristics
  Crew: 2
  Length: 10.22 m (33 ft 6 in)
  Wingspan: 11.5 m (37 ft 9 in)
  Height: 3.74 m (12 ft 3 in)
  Wing area: 23.6 m² (254 sq ft)
  Empty weight: 2,440 kg (5,379 lb)
  Gross weight: 4,250 kg (9,370 lb)
  Powerplant: 1 × Aichi Atsuta AE1P 32  V-12 inverted liquid-cooled piston engine, 1,000 kW (1,400 hp)
  Performance
  Maximum speed: 550 km/h (340 mph, 300 kn)
  Range: 1,465 km (910 mi, 791 nmi)
  Service ceiling: 10,700 m (35,100 ft)
  Rate of climb: 14 m/s (2,800 ft/min)
  Wing loading: 180 kg/m² (37 lb/sq ft)
  Power/mass: 025 kW/kg (15 hp/lb)
  Armament
  Guns: 
  2× forward-firing 7.7 mm Type 97 aircraft machine guns
  1× rearward-firing 7.92 mm Type 1 machine gun
  Bombs: 
  500 kg (1,100 lb) of bombs (design)
  800 kg (1,800 lb) of bombs (suicide attacker)
caption: Instrument panel of a Yokosuka D4Y4
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