Shown over-nighting in the hangar while stationed at Pitcairn Field (NAS Willow Grove after after 1942) to undergo testing by the manufacturer. During full aft CG spin testing it entered a flat spin. Test pilot William H. Engle reported that he tried to recover for 25 revolutions then released the ant-spin parachute. The fix included enlargement of the vertical stabilizer and this was done prior to engine cooling tests at NACA Langley in November/December 1941. There the project ended due to U.S. entry into World War II. Collection holder William Engle is the son of Fleetwings test pilot William H. Engle.
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