Exactly Crab, all far too slow.
But although all the chat about NVGs, IR and radar is certainly interesting, it just need not have been a critical issue, because the aircraft should never have been where it was – 10 miles from (and beyond) the destination at 200ft on a misty, low cloud night. And to have intended to transit like this for 10 miles was just so unnecessary. Why on earth did this crew not just do a let down from the north east to a point say 2nm north east of Blacksod, in the middle of a 4nm wide and 5 nm long bay – and one surrounded by low elevation terrain? They would have been nicely into wind with a ground speed of 60 knots or so and would have got visual with the Blacksod lighthouse and even scattered housing by 300ft I’m pretty sure. And by all means use the radar and IR to verify their position, but with it only being important for a mile or two - not 10.
Again, can anyone say how the sister S92 R118 from Sligo got into Blacksod to refuel? Many must know. But I can’t believe it was the way R116 tried to.