Da dadada da daaaaa............it's me - Hurrah
Apologies to Blackadder.
The phrase 'no lesser capability' is the one that is supposed to ensure that whatever platform is chosen will be at least as good as what it replaces.
Sadly, this now seems open to interpretation and debate so we will end up with a newer helicopter than the SeaKing (not difficult) which will probably have better range, speed and payload; probably better OEI performance as well.
But will it actually have the same or better SAR capability than the 3A (currently the most advanced Sea King in this role)? That will depend on whether or not those making the final decisions actually understand what the current capability is and not what they have heard or what they remember from 10 years ago or what industry tells them we can do.