Kawanishi H6K

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Kawanishi H6K

Kawanishi H6K

Allied Code Name: "Mavis"

Kawanishi H6K

(Scanned from René J. Francillion "Japanese Aircraft of the Pacific War" - Putnam - 1979)

UNITS ALLOCATED

8th, 14th, 801st, Toko and Yokohama Kokutais.

H6K Lateral View

(Scanned from Barrie Pitt "The Illustrated History of World War II" - Temple Press Aerospace - 1986)

H6K Lateral View

(Scanned from "Aviões da Segunda Guerra Mundial" - Abril Cultural S.A. - 1975)

TECHNICAL DATA

Description: Four-engined long-range maritime reconnaissance flying-boat (H6K1, H6K2, H6K4 and H6K5) and transport flying-boat (H6K2-L, H6K3 and H6K4-L).All-metal construction with fabric-covered control surfaces.

Accommodation: Normal crew of nine (H6K1, H6K2, H6K4 and H6K5). Crew of eight and 10-18 passengers (H6K2-L, H6K3 and H6K4-L).

Powerplant:

Four Nakajima Hikari 2 nine-cylinder air-cooled radials, rated at 840 hp for take-off and 700 hp at 1,200 m, driving three-blade metal propellers (H6K1 prototypes).
Four Mitsubishi Kinsei 43 fourteen-cylinder air-cooled radials, rated at 1,000 hp for take-off and 990 hp at 2,800 m, driving three-blade metal propellers (H6K1 Model 1, H6K2, H6K2-L, H6K3 and H6K4 Model 2-2).
Four Mitsubishi Kinsei 46 fourteen-cylinder air-cooled radials, rated at 930 hp for take-off and 1,070 hp at 4,200 m, driving three-blade metal propellers (H6K4 Model 2-3 and H6K4-L).
Four Mitsubishi Kinsei 51 or Kinsei 53 fourteen-cylinder radials, rated at 1,300 hp for take-off, 1,200 hp at 3,000 m and 1,100 hp at 6,200 m, driving three-blade metal propellers (H6K5).

Armament:

One flexible 7.7 mm Type 92 machine-gun in an open bow position, one flexible 7.7 mm Type 92 machine-gun in a power-operated dorsal turret and one hand-held 7.7 mm Type 92 machine-gun in a tail turret (H6K1 and H6K2).
One flexible 7.7 mm Type 92 machine-gun in an open bow position (H6K4) or forward turret (H6K5), one 7.7 mm Type 92 machine-gun in an open dorsal position, one 7.7 mm Type 92 machine-gun in each beam blister and one flexible 20 mm Type 99 Model 1 cannon in a tail turret (H6K4 and H6K5).
Bomb-load: two 800 kg torpedoes, or up to 1,000 kg of bombs (H6K1, H6K2, H6K4 and H6K5).

	H6K2	H6K2-L	H6K4	H6K5
Dimensions:
Span	40.00 m	40.00 m	40.00 m	40.00 m
Length	25.63 m	24.90 m	25.63 m	25.63 m
Height	6.27 m	6.27 m	6.27 m	6.27 m
Wing area	170.0 m²	170.0 m²	170.0 m²	170.0 m²
Weights:
Empty	10,340 kg	12,025 kg	11,707 kg	12,380 kg
Loaded	16,000 kg	17,100 kg	17,000 kg	17,500 kg
Maximum	-	23,000 kg	21,500 kg	23,000 kg
Wing loading	94.1 kg/m²	100.6 kg/m²	100.0 kg/m²	102.9 kg/m²
Power loading	4.0 kg/hp	4.3 kg/hp	4.3 kg/hp	3.4 kg/hp
Performance:
Maximum speed	179 kt at 2,100 m	180 kt at 2,610 m	184 kt at 4,000 m	208 kt at 6,000 m
Cruising speed	-	130 kt at 1,000 m	120 kt at 4,000 m	140 kt at 4,000 m
Climb to	5,000 m	-	5,000 m	5,000 m
in	13 min 58 sec	-	13 min 31 sec	13 min 23 sec
Service ceiling	7,600 m	-	9,610 m	9,560 m
Normal range	2,230 naut miles	2,337 naut miles	2,590 naut miles	2,667 naut miles
Maximum range	-	-	3,283 naut miles	3,656 naut miles

Production: A total of 215 H6Ks were built by Kawanishi K.K. in their Naruo plant as follows:

4 H6K1 prototypes (1936-38)
(3) H6K1 Model 1 modified from prototypes (1938)
10 H6K2 Model 11 (1938-39)
(2) H6K2 modified as experimental transports (1939)
2 H6K3 (1939)
127 H6K4 Model 22 (1939-42)
36 H6K5 Model 23 (1942)
16 H6K2-L (1940-42)
20 H6K4-L (1942-43)
(2) H6K4-L modified from H6K4 airframes (1942)

H6K5 Three-view drawing

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