A total of 16 L-1011's were converted to freighters.
There was one (1) L-1011-1, eleven (11) -200's and four (4) -500's for the RAF.
The L-1011-1 was the first freighter the conversion was none without any Lockheed input. The conversion was started in Miami and completed Alabama. The remainder were accomplished by Marshall with full coperation of Lockheed.