Originally Posted by
SeenItAll
Further, there is now less diversification of supply. Back 20-30 years ago, each plane model could be fitted with engines from 2 or 3 suppliers (RR, GE, P&W). But now, we see 2 alternatives for a particular frame at the most, and many with just 1. This means that a single supplier's problems now have proportionately larger effects on the plane's program.
Indeed.
Rolls like so many other manufacturers operate with very little inventory. When things are going well there are few problems but it doesn't take much for things to go wrong.
Just look at the potential chaos the motor manufacturers are having to deal with as a result of the dreaded B word.