Unconnected with the accident but curious nonetheless. Do crew and passengers travelling in a private helicopter across the Irish Sea have to wear immersion suits? I can't imagine corporate clients routinely going via Campbelltown so the shortest crossing of what is a very cold sea looks to be over 20 miles. Neither can I imagine ultra-wealthy passengers such as the ones on this aircraft or the one that crashed in the Mournes being over the moon about donning an immersion suit. Military crews would ordinarily wear a suit when there is any risk of ditching. Why not corporate? Or have I got it wrong and they'd all be suitably dressed for a lengthy over sea crossing?