Bakkuteh
I'd be careful drawing comparisons with the L1011 & the RB211. Yes the RB211 bankrupted Rolls Royce, and for a while Lockheed were selling gliders. I think that RR were rather optimistic with their research and their plans for carbon fibre blades were ahead of their time. (Parrallels with today?) However the RB211 product delivered to the airlines was a good one and well regarded. Many, many products have teething problems.