| 词条 | Bloch MB.210 | |||||||||||||||
| 释义 |
The MB.210 and MB.211 were the successors of the French Bloch MB.200 bomber built by Societé des Avions Marcel Bloch in the 1930s and differed primarily in being low wing monoplanes rather than high wing monoplanes. DevelopmentThe MB.210 derived from the MB.200 and differs in particular by having its cantilever wing set at the bottom of the fuselage, and in having a retractable undercarriage. Developed as a private venture, the prototype MB.210 accomplished its first flight on 23 November 1934, powered by two 596 kW (800 hp) Gnome-Rhône 14Kdrs / Gnome-Rhône 14Kgrs air-cooled radial engines and having a fixed undercarriage.[1] This was followed by a second prototype, the MB.211 Verdun, powered by 641 kW (860 hp) Hispano-Suiza 12Y V-12 liquid-cooled inlines and fitted with a retractable undercarriage, this flying on 29 August 1935.[2] Initial flight testing of this version was somewhat disappointing, so no further examples were built. Further progress with the MB.210, however, convinced the Armée de l'Air to order series production, the first example of which flew on 12 December 1936.[3] The satisfaction did not last very long, however, since it was underpowered and the engines of production aircraft were inclined to overheating. The type was grounded until its engines could be replaced by the more powerful and reliable Gnome-Rhône 14N, these engines first being tested in summer 1937 and had to be replaced.[4] Altogether, 257 units were manufactured amongst companies as diverse as Les Mureaux over Potez-CAMS, Breguet, Hanriot, and Renault. Operational historyIn September 1939, the Bloch MB.210 equipped 12 bomber units of the Armée de l'Air. At the time of Nazi Germany's attack on France in spring 1940, these squadrons were in the middle of a restructuring aimed at removing outdated aircraft from the front line. Up to the armistice on 25 June of the same year, the MB.210 was used still for nighttime bombing missions and shifted then to North Africa. Variants
First prototype, powered by 2x 596 kW (800 hp) Gnome-Rhône 14Kdrs / Gnome-Rhône 14Kgrs air-cooled radial engines.
Initial production version, powered by 2x Gnome-Rhône 14N-10 / Gnome-Rhône 14N-11 radial engines.
Hanriot-built variant with extra crew member.
Floatplane version powered by 2x Gnome-Rhône 14Kirs engines
Prototype equipped with two 641 kW (860 hp) Hispano-Suiza 12Y inline engines.
project[5]
project[5] Operators
Specifications (MB.210Bn.5){{Aircraft specifications|plane or copter?=plane |jet or prop?=prop |ref=War Planes of the Second World War: Volume Seven [8] |crew=Five |capacity= |length main= 18.83 m |length alt= 61 ft 9 in |span main= 22.82 m |span alt= 74 ft 10 in |height main= 6.70 m |height alt= 21 ft {{frac|11|3|4}} in |area main= 62.5 m2 |area alt= 673 ft2 |airfoil= |empty weight main= 6,413 kg |empty weight alt= 14,109 lb |loaded weight main= 9,720 kg |loaded weight alt= 21,385 lb |useful load main= |useful load alt= |max takeoff weight main= 10,221 kg |max takeoff weight alt= 22,487 lb |more general= |engine (prop)=Gnome-Rhône 14N-10 / Gnome-Rhône 14N-11 |type of prop=14-cylinder air-cooled radial engine |number of props=2 |power main= 709 kW |power alt= 950 hp |power original= |max speed main= 322 km/h |max speed alt= 174 kn, 200 mph |max speed more= at 3,500 m (11,480 ft) |cruise speed main= 240 km/h |cruise speed alt= 130 kn, 149 mph |cruise speed more=(econ cruise) at 3,500 m (11,480 ft) |stall speed main= |stall speed alt= |never exceed speed main= |never exceed speed alt= |range main= 1,700 km |range alt= 918 nmi, 1,056 mi |ceiling main= 9,900 m |ceiling alt= 32,480 ft |climb rate main= |climb rate alt= |loading main= 156 kg/m2 |loading alt= 31.8 lb/ft2 |thrust/weight= |power/mass main= 0.15 kW/kg |power/mass alt= 0.089 hp/lb |more performance=*Climb to 4,000 m (13,120 ft): 12 min |guns=3 × 7.5 mm (.295 in) MAC 1934 machine guns (one in nose, dorsal and ventral turrets) |bombs=1,600 kg (3,520 lb) of bombs |avionics= }} See also{{Portal|Aviation}}{{Aircontent|see also= |related=
|similar aircraft= |lists=
}} References
1. ^Green 1967, p.124. 2. ^Green 1967, p. 125. 3. ^Green 1967, p.126. 4. ^Green 1967, p.127. 5. ^1 2 3 "Bloch MB 210–211." dassault-aviation.com. Retrieved: 2 November 2011. 6. ^BLOCH 200/210 {{webarchive |url=https://web.archive.org/web/20120319161616/http://members.fortunecity.es/potez/bloch.htm |date=March 19, 2012 }} 7. ^MB 210-211. Dassault Aviation. Retrieved 17 August 2008. 8. ^Green 1967, p. 128.
External links{{commons category|Bloch aircraft}}
5 : Bloch aircraft|French bomber aircraft 1930–1939|Low-wing aircraft|Aircraft first flown in 1934|Twin piston-engined tractor aircraft |
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