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Nakajima G5N

nakag5n


The first application of the Nakajima Mamoru engines was on the first prototype of the G5N1 Genzan, first flying on April 10, 1941. The G5N1 had been designed on the basis of the Douglas DC-4E as Japan's first four-engine bomber, and proved to be a disappointment. These problems were compounded by the unreliability of the early Mamoru engines, which had to be de-tuned and left the G5N1 underpowered. The G5N1's maiden flight was on 10 April 1941, and a further four prototypes were built with the Mamoru. In an attempt to salvage the project, two additional airframes were fitted with 1,530 hp Mitsubishi MK4B 12 "Kasei" engines and redesignated G5N2s. Although the Mitsubishi engines were more reliable than the original Mamoru 11s, further development was halted. Of the six completed Shinzans, four of them (two G5N2s and two G5N1s re-engined with the Kasei 12) were relegated for use as long-range Navy transports under the designation Shinzan-Kai Model 12 Transport G5N2-L.


G5N1
Engine: 4 x Nakajima NK7A Mamoru-11, 1400kW
Max take-off weight: 28150-32000 kg / 62060 - 70548 lb
Empty weight: 20100 kg / 44313 lb
Wingspan: 42.12 m / 138 ft 2 in
Length: 31.02 m / 101 ft 9 in
Wing area: 201.8 sq.m / 2172.16 sq ft
Max. speed: 420 km/h / 261 mph
Cruise speed: 370 km/h / 230 mph
Ceiling: 7450 m / 24450 ft
Range: 4260 km / 2647 miles
Crew: 7
Armament: 2 x 20mm cannons, 4 x 7.7mm machine-guns
Bombload: 2000-4000kg


G5N2
Engines: 4 x 1,530 hp Mitsubishi MK4B 12 Kasei
Wingspan: 42.12 m / 138 ft 2 in
Length: 31.02 m / 101 ft 9 in
Wing area: 201.8 sq.m / 2172.16 sq ft

 

G5N2-L Shinzan-Kai Model 12
Engines: 4 x 1,530 hp Mitsubishi MK4B 12 Kasei
Wingspan: 42.12 m / 138 ft 2 in
Length: 31.02 m / 101 ft 9 in
Wing area: 201.8 sq.m / 2172.16 sq ft

 

Nakajima G5N Shinzan / LIZ
naka-g5n-ld

 

 

 

 


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