East Troy, Wisconsin: Two men in private plane see silver object cross 17 miles in 20 s

At 2:30 p.m. Capt. Robert J. Southey and Clem Hackworthy were flying a private aircraft near East Troy, Wisconsin, when they saw a fast-moving silver object flying southeast from Eagle to Muskego. It covered 17 miles in 20 seconds, roughly 3,060 mph. The two tried to photograph it, but it quickly disappeared and then suddenly reappeared about 10 miles away. The Burlington (Wis.) Free Press reported the sighting on July 10, 1947; Eberhart also cites Sparks, Bloecher, Gross and two pages of the PURSUE release. The account follows the entry in George M. Eberhart's chronology UFOs and Intelligence (CUFOS) and the sources cited there; it is not an independent determination by From Beyond Space.