| 词条 | Junkers Ju 352 | ||||||||||||||||||
| 释义 |
The Junkers Ju 352 Herkules ("Hercules" in German) was a German World War II transport aircraft that was developed from the Junkers Ju 252.[1] Design and developmentDuring the late spring of 1942, the Junkers-Dessau project office was instructed by the Reich Air Ministry (RLM) to investigate the possibility of redesigning the structure of the Junkers Ju 252 transport to make maximum use of non-strategic materials,[2] replacing the Junkers Jumo 211F engines of the Ju 252 with Bramo 323R radial engines.[2] The result followed closely the aerodynamic design of the Ju 252 but was an entirely new aircraft. The wing of the Ju 352 was similar in outline to that of the Ju 252 but, mounted further aft on the fuselage, was entirely of wooden construction. The Ju 352 also had a similar Trapoklappe ("Transportklappe", rear loading ramp) to that of the Ju 252. The ramp allowed the loading of vehicles or freight into the cargo hold while holding the fuselage level.[1] In general, the Ju 352 was considered a major improvement over the original Junkers Ju 52 but noticeably inferior to the Junkers Ju 252.[3] Deliveries of the Ju 352 had only just begun to get into their stride when, during the summer of 1944, the worsening war situation resulted in the decision to abandon further production of transport aircraft. In September the last two Ju 352As rolled off the assembly line, 10 pre-production Ju 352s and 33 production Ju 352s having been manufactured.[3] Several developments of the basic design were proposed before production was halted, these including the Ju 352B with more powerful engines and increased defensive armament. Operators
Specifications (Ju 352A){{Aircraft specifications|plane or copter?=plane |jet or prop?=prop |ref=[2] |crew=3–4 |capacity= |payload main= |payload alt= |length main=24.60 m |length alt=80 ft 8½ in |span main=34.20 m |span alt=112 ft 2¾ in |height main=5.74 m |height alt=18 ft 10¼ in |area main=128.20 m² |area alt=1,379.90 ft² |airfoil= |empty weight main=12,500 kg |empty weight alt=27,561 lb |loaded weight main= |loaded weight alt= |useful load main= |useful load alt= |max takeoff weight main=19,600 kg |max takeoff weight alt=43,216 lb |more general= |engine (prop)=BMW Bramo 323 R-2 Fafnir |type of prop=9-cylinder radial engine |number of props=3 |power main=735.5 kW, |power alt=986 hp, |power original=1,000 PS |power more= 883 kW (1,200 PS, 1,184 hp) with MW-50 |max speed main=370 km/h |max speed alt=230 mph |max speed more=at 5,050 m (16,565 ft) |cruise speed main=241 km/h |cruise speed alt=150 mph |stall speed main= |stall speed alt= |never exceed speed main= |never exceed speed alt= |range main=1,800 km |range alt=1,120 miles |ceiling main=6,000 m |ceiling alt=19,685 ft |climb rate main= |climb rate alt= |loading main= |loading alt= |thrust/weight= |power/mass main= |power/mass alt= |more performance= |guns=
|avionics= }} See also{{Aircontent||related=
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|see also= }} References{{commons category|Junkers}}1. ^1 Kay, Antony L. & J.R. Smith. German Aircraft of the Second World War. London: Putnam, 2002. 220. {{Junkers aircraft}}{{RLM aircraft designations}}2. ^1 2 Kay, Antonty L. & Paul Couper. Junkers Aircraft and Engines, 1913–1945. London: Putnam, 2004. 229. 3. ^1 LePage, Jean-Denis G.G. Aircraft of the Luftwaffe 1935–1945: An Illustrated History. Jefferson, NC: McFarland & Co., 2009. 341. 6 : German military transport aircraft 1940–1949|World War II transport aircraft of Germany|Junkers aircraft|Trimotors|Low-wing aircraft|Aircraft first flown in 1943 |
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