The Walter HWK 109-509 powered the first piloted aircraft of any type to exceed how many MPH in level flight?
Walter HWK 509 The Walter HWK 109-509 was a German liquid-fuel bipropellant rocket engine that powered the Messerschmitt Me 163 Komet and Bachem Ba 349 aircraft. It was produced by Hellmuth Walter Kommanditgesellschaft (HWK) commencing in 1943.
Dick Merrill Henry Tyndall "Dick" Merrill (February 1, 1894 – October 31, 1982) was an early aviation pioneer. Among his feats he was the highest paid air mail pilot, flew the first round-trip transatlantic flight in 1936, was Dwight D. Eisenhower's personal pilot during the 1952 presidential elections, set several speed records, and would go on to be Eastern Air Lines' most experienced pilot with over 36,000 hours until his retirement in 1961. In total, Merrill flew over 45,000 hours as pilot in command, covering over eight million miles.