I'd love to see a field in Central Park. I live right nearby. My first suggestion is Sheep Meadow, a very large open area in the 60's. They CLOSE THE AREA OFF during the fall to allow the grass to regrow. Why not try a seasonal winter permit first -- a handful of modelers won't ruin the grass, and having signs posted that only modelers can use the field should keep others out. (The fences can be hopped, so they really don't keep everyone out. Alternatively, the Hecksher Ballfields near the bottom of the park also get fenced off after the summer and, though smaller, would probably be adequate. I'd also suggest the North Meadow in the 90's and 100's. It's a great open space with ballfields and soccer fields that go unused during the winter (and during the week at certain hours). Plenty of room to set up a safe protocol with a flight line, spectator area, etc.