FSX/FS2004 - Lockheed L-1249A Turboprop. The L-1249A was the turboprop version of the Lockheed Super Constellation and 4 were built for the USAF (YC-121F) and USN.

Lockheed Constellations The Lockheed Constellation TWA in 1939 was having trouble funding the Boeing Stratoliner purchase, and in fact at one point Boeing stopped work because of lack of progress payments. At this point Jack Frye, president of TWA, convinced Howard Hughes to invest in the airline, and Hughes eventually had enough board members to take effective control. Hughes wanted TWA to have the best airliner possible, one that would make TWA a clear leader in aviation. TWA had participated in the original DC-4 (later DC-4E) project, but it was too large and appeared to be uneconomical. While the other participants (United, Eastern, and American) went back to Douglas for a new DC-4, Hughes decided that TWA could do better (and wanted an aircraft exclusive to TWA).

Example Of Cracking In Chemistry Grupa Zana Diskografija. on this page. Thus in 1939 he called Frye to discuss such a project. By the time the call was over, they had agreed on the plane's conceptual mission and a list of design objectives.