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      Douglas DC1 DC2 and DC3  
                
            
      
                  
                The DC-3 was to become perhaps the most important 
                airliner in history. It quickly established its reputation with 
                this and other operators, including the military 
      The early 1930s saw a complete 
      transformation of commercial air transport with the introduction of the 
      Boeing Model 247. At last the majestic but lumbering biplane was giving 
      way to the sleek low-wing, all-metal monoplane airliner. However, such was 
      the interest in the 247 that Boeing could guarantee delivery only to 
      United Airlines, who had ordered the first sixty.  
      
        
      Transcontinental and Western Air (TWA) 
      therefore issued a requirement to other manufacturers for a similar 
      airliner a challenge which Douglas accepted. It built the DC-1, in many 
      ways a more refined aircraft, although it flew for the first time on 1 
      July 1933, only four months after the Model 247 entered service. When it 
      was handed over to TWA, it flew in record time between Los Angeles and New 
      York. Impressed, the airline placed an immediate contract for 28 more 
      Douglas airliners, but in an even more refined form.  
      
      
        
      History owes a lot to TWA, for the development of the DC-1 
      History owes a lot to TWA, for the 
      production airliner delivered by Douglas was the DC-2, which began 
      operations in July 1934. At that time it was the best passenger aircraft 
      in the world, and other operators soon began queuing up to place orders. 
      First of the non-US airline customers was KLM, which began flying the type 
      in the autumn of the same year, and the DC-2 seemed set for a long 
      production run.  
      
        
          
        The production airliner delivered by Douglas was the DC-2, which began 
        operations in July 1934.  
      However, even greater acclaim was to 
      come Douglas's way when it attempted to fulfil yet another requirement, 
      this time from American Airlines. This company operated sleeper aircraft 
      on its trans-America flights and, wanting to keep abreast of the latest 
      developments, asked Douglas for a suitable airliner. Their answer was the 
      DC-3, a direct but slightly larger development of the DC-2. The prototype 
      first flew on 17 December 1935, and the design was soon being produced in 
      two versions for American Airlines the 14-passenger DST sleeper and a 
      21-seat 'daytime' airliner. Services with DC-3s started in June of the 
      following year.  
       
      What was to become perhaps the most important airliner in history, quickly 
      established its reputation with this and other operators, including the 
      military. During the Second World War, the DC-3 (named Dakota by Britain) 
      was mass produced as a utility transport in C-47, C-53, and other 
      versions, known also as Skytrains and Skytroopers, and was license-built 
      in large numbers in Russia as the Lisunou Li-2. Used in all imaginable 
      roles, from freight and personnel transport to glider tug and ambulance, 
      the type was active in all theatres of war, notably during the D-Day 
      landings in Normandy and subsequent assaults by Allied airborne forces.
       
       
      After the war the military flying continued, while production of the civil 
      version restarted. DC-3s became the mainstay of worldwide passenger and 
      freight services for many years, although as larger-capacity 
      piston-engined airliners and then jet airliners became available, DC-3s 
      were gradually turned over to smaller operators.  
      
       
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        Specifications: 
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        Douglas DC-3 
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        Dimensions: 
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        Wing span:  | 
        95 
        ft 0 in (28.96 m)  | 
        
       
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        Length:  | 
        64 ft 5 in 
        (19.63 m)  | 
        
       
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        Height:  | 
        16 ft 4 in 
        (4.97 m)  | 
        
       
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        Weight:   | 
        
       
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        Max T/O Gross: 
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        28,000 lbs 
        (12,701 kg)  | 
        
       
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        Performance:   | 
        
       
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        Cruise Speed: 
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        170 mph (274 
        km/h)  | 
        
       
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        Range:  | 
        1,025 miles 
        (1,650 km)  | 
        
       
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        Powerplant: Two 
        Wright Cyclone R-1820, 9 cylinder, radial air-cooled engines, each 
        providing 1,475 hp (1,099 kw) @ takeoff.  | 
        
       
        
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