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    | Stuff
      You Can Buy | 
   
  
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            Pratt & Whitney
      R-1830 Twin Wasp
           | 
         
        
          | The
            Engine | 
           | 
           Specifications | 
         
        
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          In
            1927, Pratt & Whitney began researching twin-row radial
            engines.  One result, the R-1830 Twin Wasp, first flew
            in 1931.  It was one of the most efficient and
      reliable engines of the 1930s. 
      The R-1830 was in production from 1931 through 1951.  Over 173,000
      were produced, more than any other aircraft engine (per Pratt &
      Whitney). 
        
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                | 14 cylinder, air-cooled, two-row radial |  
                | displacement: 1,830 cubic inches (30 liters) |  
                | Bore x stroke: 5.5 x 5.5 inches |  
             
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            | 
          USMC
            Air-Ground Museum 
            Quantico, VA 
            June 2001 | 
         
        
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          |  Models | 
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           Used
            by | 
         
        
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                | R-1830-9: 950 hp (708 kW) |  
                | R-1830-S1B3G: 1,000 hp (745 kW) |  
                | R-1830-S1C3G: 1,200 hp (895 kW) |  
                | R-1830-13: 1,050 hp (783 kW) |  
                | R-1830-24: 1,050 hp (783 kW) |  
                | R-1830-36: 1,200 hp (895 kW) |  
                | R-1830-65: 1,200 hp (895 kW) w/turbocharger |  
                | R-1830-92: 1,200 hp (895 kW) |  
             
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          |  Related
            Pages | 
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             page updated 26 September 2009
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