Hi TBM - my knowledge of the RDAF's utilisation of their 604s is not based off an airshow website. Whilst not trying to diminish their capability (or your comment), their primary role (by a HUGE margin) is maritime surveillance, particularly fisheries patrol and pollution monitoring. I'm sure they do a brilliant job of SAR, but it forms a very very small part of their tasking - which is completely different to the AMSA Cobham 604s.