Yokosuka E14Y

The Yokosuka E14Y (Allied reporting name Glen) was an Imperial Japanese Navy reconnaissance seaplane transported aboard and launched from Japanese submarine aircraft carriers such as the I-25 during World War II. The Japanese Navy designation was "Type 0 Small Reconnaissance Seaplane"

Yokosuka E14Y
Class Aircraft
Type Reconnaissance
Manufacturer Yokosuka Naval Air Technical Arsenal
Origin Japan
Country Name Origin Year
Japan 1939
Country Name Operational Year Retirement Year
Japan 1941 1943 View
ManufacturerName Production From Production To Quantity
Yokosuka Naval Air Technical Arsenal 126 View

The "Glen" was used for several Japanese reconnaissance missions during the Pacific War.

The "Glen" is the only Japanese aircraft to overfly New Zealand during World War II (and only the second enemy aircraft after the German Friedrichshafen FF.33 'Wölfchen' during World War I). On 8 March 1942 Warrant Officer Nobuo Fujita photographed the Allied build up in Wellington harbour in a "Glen" launched from the Japanese submarine I-25. On 13 March he flew over Auckland, before the I-25 proceeded to Australia. On the night of 24/25 May Warrant Officer Susumo Ito flew a "Glen" over Auckland from the Japanese submarine I-21. Type A1 submarine I-9 was caught off the New Zealand coast in early 1943; however, no Japanese aircraft was observed and any records of overflights were lost when the submarine was sunk.

The "Glen" also has the distinction of being the only aircraft to drop bombs on the United States mainland during World War II, in an incident known as The Lookout Air Raid. On 9 September 1942 , Chief Warrant Officer Nobuo Fujita, a pilot in the Japanese Imperial Navy, and his crewman, Petty Officer Shoji Okuda, surfaced in submarine I-25 off the coast of Oregon near Brookings. His tiny seaplane had folding wings and was transported in a small hangar attached to the deck of the submarine. The bombs - 76 kg (168 lb) incendiaries intended to cause forest fires - caused no injuries or real damage.

Role Submarine-based reconnaissance seaplane
National origin Japan
Manufacturer Yokosuka Naval Air Technical Arsenal
First flight 1939
Introduction 1941
Retired 1943
Primary user Imperial Japanese Navy
Number built 126

General characteristics

  • Crew: 2 (pilot and observer)
  • Length: 8.54 m (28 ft)
  • Wingspan: 11 m (36 ft 1 in)
  • Height: 3.82 m (12 ft 6 in)
  • Wing area: 19 m² (204 ft²)
  • Empty weight: 1,119 kg (2,467 lb)
  • Loaded weight: 1,450 kg (3,197 lb)
  • Max. takeoff weight: 1,603 kg (3,533 lb)
  • Powerplant: 1 × Hitachi Tempu 12 nine-cylinder air-cooled radial engine, 254 kW (340 hp)


  • Maximum speed: 246 km/h at sea level (133 kn, 153 mph)
  • Cruise speed: 167 km/h (90 kn, 104 mph)
  • Range: 880 km (475 nmi, 548 mi)
  • Service ceiling: 5,420 m (17,780 ft)
  • Wing loading: 76.3 kg/m² (15.7 lb/ft²)


  • Guns: 1× flexible, rearward-firing 7.7 mm (.303 in) Type 92 machine gun for the observer
  • Bombs: 2× 76 kg (168 lb) incendiary bombs

End notes