I've recently been viewing B747-400F pictures in the database, and noticed that Cargolux has both GE's (CF6-80E, I believe), and RR's (RB211) engines on certain ships. Some (one, I think) is a -428F, ex-Air France. Did they (sub-)lease this from AF, or buy it? And either way, why didn't AF retire a classic freighter instead of selling a newer one?
Also, some of Cargolux's on -47RFs have both GE's and RR's. What is the reasoning behind this? Were they separate orders and just so happened to get one hell of a deal, or do they do it to be certified on lot's of different engines, to win maintenance contracts, like Lufthansa does (ex. the RR's on their A333's, PW's on the A332's)?
Thanks to all that reply !