Kawanishi E15K Shiun / Norm

The first prototype flew on December 5, 1941.
The central float was jettisonable (in order to increase speed in case of being pursued by fighters), and the wing floats were retractable. In an event of jettisoning the main float, wing floats were to stay retracted during landing on water, and would then keep the plane afloat.
15 were built.

E15K1
Engine: 1 x Mitsubishi MK4S "Kasei-24", 1390kW
Max take-off weight: 4100-4900 kg / 9039 - 10803 lb
Empty weight: 3165 kg / 6978 lb
Wingspan: 14 m / 45 ft 11 in
Length: 11.59 m / 38 ft 0 in
Height: 4.95 m / 16 ft 3 in
Wing area: 30 sq.m / 322.92 sq ft
Max. Speed: 460 km/h / 286 mph
Cruise speed: 290 km/h / 180 mph
Ceiling: 9830 m / 32250 ft
Range: 3320 km / 2063 miles
Crew: 2