Most interesting!
Re: "Guba" - My boss 1978-1980 was Ronald G. Carter, a British expat who had been FE on several BOAC types before emigrating. Among the ships he crewed was Guba.
And I believe Guba was unique in that it had Wright Cyclone 9s (R-1820) as opposed to P&W's on all other Cats.
EDIT: Well, not so unique after all. The Cats sold to (& assembled in) Russia had M-62 engines - license-built Wrights.
Last edited by barit1; 10th Apr 2012 at 01:48.