I reckon the NY does not stand for New York? Crossing the big pond with your humble S6
?
If it stands for North Yorkshire, as I think may be assumed, then here's a few I found:
*/ ex RAF base at Wombleton, doubtlessly known to you - for me a fond memory from the time it was the Europa "factory airfield"
*/ airstrip at Newton-on-Ratcliffe:
https://www.openstreetmap.org/node/7342516666
*/ decent looking farm strip "Ings Farm":
https://www.openstreetmap.org/node/7213986348
But where exactly is/was this Saltersgate field? No such name in my records, as yet..?