Got a plane or helicopter? Then you may be in the market for a private, licensed airstrip, approved for both machines, on 121 acres in Bethlehem. Called Irish Hills Farm, the property includes a 4,500-square-foot contemporary home designed by Jack Miller, famed for his rustic ski homes in Aspen. But the best news for would-be second-home owners who are both time-pressed and high fliers? The trip to and from Manhattan takes about 30 minutes. It lists with Peter Klemm of Klemm Real Estate in Washington Depot for $3.5 million. 917-864-4940.