If I remember correctly, as part of the ongoing development of autoland the BEA/BA TriStars were delivered with Cat 3B capability straight from the factory.
As I recall, you remember correctly.
Designed in Burbank, built at Palmdale...TriStar, in a class of its own...yes (at the time).
I must admit...the Rollers were great engines, too.
And...they still are.
Full marks for RollsRoyce.
In thirty years (going on...thirty one) of flying the beast, not one engine failed...only three were shut down, as a precaution.
Three shafts...work good
Quiet, too.