Yokosuka Type 0 Small Reconnaissance Seaplane / E14Y (Glen)
Technical Information

Background
The Yokosuka Type 0 Small Reconnaissance Seaplane / E14Y (Glen) was a floatplane that could operate off a submarine. This type surveyed the effects of the Pearl Harbor attack ten days later. Another another Glen was launched off the West Coast of the USA that dropped bombs in the forest of Oregon from submarine I-25. In other regions, the Glen flew reconnaissance over Australia, New Zealand, the Aleutians and other locations.

Being very slow it was an easy target for Allied aircraft if spotted. Their reconnaissance flights (normally around 5 hours duration) were usually carried out under the cover of darkness to avoid such an occurrence. The "Glen" was armed with a 7.7 mm machine gun mounted in the rear cockpit. A total of 125 aircraft were built by K. K. Watanabe Tekkosho between 1941 and 1943.

Pearl Harbor Reconnaissance
During January and February 1942, submarine launched Glen seaplanes made flights over Pearl Harbor.

Storage on Submarines
Glens were operated from Japanese submarines I-7 to I-11, and I-15 to I-35. It was stowed in a cylindrical water tight hangar at the front of Japanese "I" type submarines. The "Glen" was able to be broken down into 12 components for storage in the hangar. The "Glen", once assembled on the deck of the submarine, was launched from a 20 meter inclined steel tracked catapult on the forward deck.

Glen Attack on Oregon
Warrant Flying Officer Nobuo Fujita, with his enlisted air crewman, flew the only bombing missions against the continental US. He was conscripted into the Japanese Navy in 1932 and soon took flight instruction. He served in submarines I-23 and I-25 before becoming an instructor during the remainder of the war. In August, 1942, the I-25 arrived in waters off Cape Blanco, Oregon. With Commander Meiji Tagami in command, the large submarine surfaced and crewmen scrambled onto the deck, opened the hangar, and rapidly fitted wings, stabilizers, rudder, and floats to the Yokosuka E14Y Glen reconnaissance aircraft. A pair of special incendiary bombs were attached to wing racks, and Warrant Flying Officer Nobuo Fujita and Petty Officer Shoji Okuda climber into the cockpit and were catapulted into the air. The floatplane flew inland some fifty miles, and the fliers released the two firebombs over the Oregon forests. The plane returned to come down safely on the water alongside the I-25, and was taken back on board the submarine. A second firebombing mission was flown. These were the first air attacks ever made against the continental United States.

Technical Details
Crew  Two (pilot, observer)
Engine  One Hitachi Tempu 12 nine-cylinder air-cooled radial driving wooden two bladed propellers
Span  11 m
Length  38.54 m
Height  3.80 m
Maximum Speed  90 knot at 1,000m
Range  476 nautical miles
Armament  (rear) 1 x 7.7mm machine gun
Bombload   2 x 60 kg bombs