Al-Bert: I hear you regarding kit complexity vs capability, but I also know that you have not operated a modern SAR aircraft with all that 'complexity' to be able to make a fair comparison. What it normally provides is, ironically for this scenario, far greater situational awareness, especially for the pilots whose quality of SA is no longer solely reliant on the quality of a dedicated radar operator's 'mouth music'...but ex-S61 crews will know that! In that respect operating a modern aircraft normally (!) takes up less mental capacity, not more. For this reason, I wonder if there was a degree of cognitive bias at work here: the Irish crew were expecting very low-lying rocks rather than a big island, so that's how they interpreted their displays.