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| With interest shown by Japan Air Lines for a civil version of the Mitsubishi Ki-21 bomber, the company built a Mitsubishi Ki-57 prototype, which was flown in August 1940; it differed from the Ki-21 by having low-set monoplane wings and a new fuselage to seat up to 11 passengers. Following satisfactory testing the type was ordered into production for civil and military use under the designations MC-20-1 and Army Type 100 Transport Model 1 respectively (Mitsubishi Ki-57-I), 100 series aircraft being built. The Ki-57-I was superseded from early 1942 by the improved Ki-57-ll, which introduced more powerful Mitsubishi Ha-T02 engines and a number of refinements. This had the civil and military designations MC-20-II and Army Type 100 Transport Model 2
respectively, production totalling 406. A small number of Ki-57-ls transferred for use by the Japanese navy were rede-signated L4M1, and all of these versions had the Allied codename 'Topsy'.
| MODEL | Ki-57-II |
| CREW | 2 |
| PASSENGERS | 15 |
| ENGINE | 2 x Army Type 100, 810kW |
| WEIGHTS |
| Take-off weight | 8173-9120 kg | 18018 - 20106 lb |
| Empty weight | 5585 kg | 12313 lb |
| DIMENSIONS |
| Wingspan | 22.6 m | 74 ft 2 in |
| Length | 16.1 m | 53 ft 10 in |
| Height | 4.77 m | 16 ft 8 in |
| Wing area | 70.08 m2 | 754.33 sq ft |
| PERFORMANCE |
| Max. speed | 470 km/h | 292 mph |
| Ceiling | 8000 m | 26250 ft |
| Range w/max.fuel | 3000 km | 1864 miles |
| Range w/max payload | 1500 km | 932 miles |
 | A three-view drawing (752 x 908) |
| ubaTaeCJ, e-mail, 21.02.2025 21:25 20 reply | | lxbfYeaa, e-mail, 14.03.2024 06:27 20 reply | | alan, e-mail, 08.05.2009 16:05 i think it s abad plane for ijn. reply | | Sgt.KAR98, 03.01.2009 17:17 Is this one that is showed landing in Letters for Iwo Jima? reply |
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