On 7 July 1974 at
New River, Arizona the prototype, N9413, was involved in an accident and substantially damaged. The aircraft was on a soaring flight, ran out of lift, made an attempted landing on a road in a crosswind and struck a tree. The 24-year-old pilot, who had 32 hours of flying time total, including 11 hours on type, was not injured. The aircraft has since been re-registered as N53MB. ==Specifications (GA-II) ==