New Hampshire packs a useful airport network into a small flying area. The state has 25 public-use airports, but only 4 are towered. That means a pilot can move from towered IFR operations at KPSM to non-towered procedure work at KEEN in a short trip. The runway spread is the first planning item. KPSM at Portsmouth has the state’s longest runway at 11,322 ft and sits at 100 ft elevation. KMHT at Manchester brings a 9,250 ft runway and towered ILS access. KASH at Nashua is another towered ILS field with 6,000 ft available. Northern New Hampshire changes the picture. KBML at Berlin sits at 1,161 ft with 5,200 ft of runway. KHIE at Whitefield is 1,072 ft with 4,001 ft. KERR at Errol is 1,248 ft with 3,600 ft. These fields are not high-altitude western airports, but runway length, elevation. weather margins deserve real attention.