|Mitsubishi F1M2 on patrol, c. 1943|
|Role||Reconnaissance float plane|
|First flight||June 1936|
|Primary user||Imperial Japanese Navy|
The Mitsubishi F1M (Allied reporting name "Pete") was a Japanese reconnaissance floatplane of World War II. It was the last biplane type of the Imperial Japanese Navy, with 1,118 built between 1936 and 1944. The Navy designation was "Type Zero Observation Seaplane" (零式水上観測機), not to be confused with the Type Zero Carrier Fighter or the Type Zero Reconnaissance Seaplane.
Design and development
The F1M1 was powered by the Nakajima Hikari MK1 radial engine, delivering 611 kW (820 hp), a maximum speed of 368 km/h (230 mph) and operating range of up to 1,072 km (670 mi) (when overloaded). It provided the Imperial Japanese Navy with a very versatile operations platform.
The F1M was armed with a maximum of three 7.7 mm (.303 in) machine guns (two fixed forward-firing and one flexible rear-firing) with provision for two 60 kg (132 lb) bombs.
The F1M was originally built as a catapult-launched reconnaissance float plane, specializing in gunnery spotting. The "Pete" took on a number of local roles including convoy escort, bomber, anti-submarine, maritime patrol, rescue, transport, and anti-shipping strike; for example sinking Motor Torpedo Boat PT-34 on 9 April 1942. The type was also used as an area-defense fighter and fought dogfights in the Aleutians, the Solomons and several other theaters. In the New Guinea front, it was often used in aerial combat with the Allied bombers and Allied fighters.
- F1M1 : Prototypes. Four built.
- F1M2 : Two-seat reconnaissance floatplane for the Imperial Japanese Navy.
- F1M2-K : Two-seat training version.
Data from Japanese Aircraft of the Pacific War 
- Crew: two, pilot and rear gunner
- Length: 9.5 m (31 ft 2 in)
- Wingspan: 11 m (36 ft 1 in)
- Height: 4 m (13 ft 1½ in)
- Wing area: 29.5 m² (318 ft²)
- Empty weight: 1,928 kg (4,251 lb)
- Loaded weight: 2,550 kg (5,622 lb)
- Max. takeoff weight: 2,856 kg (6,296 lb)
- Powerplant: 1 × Mitsubishi Zuisei 13 14-cylinder two-row radial engine, 653 kW (875 hp)
- Maximum speed: 370 km/h (200 kn, 230 mph) at 3,440 m (11,300 ft)
- Range: 740 km (400 nmi, 460 mi)
- Service ceiling: 9,440 m (30,970 ft)
- Wing loading: 86.3 kg/m² (17.7 lb/ft²)
- Power/mass: 257 W/kg (0.156 hp/lb)
- Climb to 5,000 m (16,404 ft): 9 min 36 sec
- Bombs: 2 × 60 kg (132 lb) bombs
- Aircraft of comparable role, configuration and era
- Related lists
|Wikimedia Commons has media related to Mitsubishi F1M.|
- on YouTube
- Francillon 1970, p.362.
- Green 1962, p.131.