Crab. I was only stating that SAS have done the night inter Hosp stuff for a while now. Sas are Scot Gov funded for 2x ec135 along with 2 fixed wing King Air. As far as I am concerned this is as far as any Ambulance service should go at present. NVG training and its currency upkeep would require a lot of initial training and flying hours, most likely coming out of a charity budget. It would also require either a spare aircraft or for one to do training on shift for this.