Aichi M6A Seiran
The Aichi M6A-1 Seiran attack floatplane was to be housed in water-tight containers and released from Japanese Navy I-400 class submarines. The wings rotated back and folded flat against the fuselage. Part of the horizontal and vertical stabiliser also folded.
The first prototype flew in November 1943 and a total of 28 were built. The design was in full production in 1945, with the aircraft and its submarine counterparts being readied for an attack on the Panama Canal when the war ended.
The Aichi M6A Seiran (translated as "Mountain Haze") was a single engine design, powered by a Atsuta 32 inline piston engine of 1,400 horsepower driving a three-blade propeller. Crew accommodations amounted to one personnel and standard armament is known to consist of a single 500lb bomb, mounted under the fuselage presumably. Design of the aircraft consisted of a low-monoplane type with a single rudder aft. The cockpit was situated at center above the wing roots.
A land-based derivative known as the M6A1K "Seiran Kai" was utilized for pilot training purposes. Landing gear was of the standard two-front with a tail wheel at rear for this land-based variant.
Engine: 1 x Aichi Atsuta Type 32 inline radial, 1,400hp.
Wingspan: 12.26 m / 40 ft 3 in
Length: 11.64 m / 38 ft 2 in
Height: 4.58 m / 15 ft 0 in
Wing Area: 27.0 sq.m / 290.63 sq ft
Take-Off Weight: 4040-4445 kg / 8907 - 9800 lb
Empty Weight: 3300 kg / 7275 lb
Maximum Speed: 295mph (474kmh; 256kts)
Cruise Speed: 300 km/h / 186 mph
Maximum Range: 1,243miles (2,000km)
Service Ceiling: 32,480ft (9,900m)
Armament: 1 x 13mm machine-gun, 850-kg torpedo or 1 x 800-kg bomb or 2 x 250-kg bombs