On February 13, 2004, at 1715 eastern standard time, a homebuilt Corben Jr. Ace, N823DP, was substantially damaged while landing at the Alliance Airport (23NJ), Pittsgrove, New Jersey. The certificated recreational pilot was not injured. Visual meteorological conditions prevailed, and no flight plan was filed, for the personal flight which originated at the Kroelinger Airport (29N), Vineland, New Jersey. According to the pilot, he departed 29N, for a local flight to his private airstrip in Pittsgrove, New Jersey. He performed one uneventful landing and takeoff to runway 10 at Pittsgrove, a 860-foot long, and 130 foot-wide turf runway. He then decided to perform one additional landing, and as he was approximately 10 feet from the approach end of the runway, and 3 feet above the ground, the pilot "stalled the airplane." The airplane touched down in a 3-point landing attitude, the landing gear sank in the soft turf, and the airplane nosed over.