Thanks to Arkroyal for the typically British input. Actually Ireland has four dedicated SAR bases... three run by CHC Ireland using S61's and it appears that the Irish Aer Corps are going to lease a fourth (on the civvie register) to replce their Dauphins and crew it themselves. Occassionally the RAF or RN do come over due to their slightly longer range, but only about as often as the Americans do callouts from Mildenhall.