Louis Wellington 'Lou' Schalk, Jr (29 May 1926 – 16 August 2002) was an American aviator. As chief test pilot for the Lockheed Corporation's Skunk Works, he was first to fly the Lockheed A-12. A native of Alden, Iowa, Schalk started at West Point in 1944, graduated in 1948, then trained and received his pilot's wings at Nellis Air Force Base. He served with the 86th Fighter-Bomber Wing in Germany. Schalk completed flight instructor school at Craig AFB and taught at Laredo Air Force Base in Texas.