It all boils down to probabilty of occurence I suppose. If I have the choice between an engine failure on takeoff every couple of thousand hours or a catastrophic fuel leak / fire once every 50 lifetimes I might go for the latter.
Yes, but if you are talking about an engine failure because of the no-pump system , you must acept that it will happen only once every 50 lifetimes
Helicomparator: you are very right about the cat A stuff , but let's assume it's the case.
Anyway because the fuel leak,(boost pump or not) it's so improbable, and the crashs (whatever the cause) happens you agree that a no-boost-pump system it's evolution, no?
Regards.
Aser