– FS2004 Douglas DC-6 Sound Package flight2000it 21 years ago FS2004 Douglas DC-6 Sound Package. Reworked sounds to accurately represent the four 1800 hp Pratt & Whitney Double Wasp 18 cylinder engines. Gear sounds by Reinhard Herrmann. Remainder by Peter Spanakos. 14 Mb FS2004 – Douglas DC-7C Panair Do Brasil 1959FSX/FS2004 – Douglas DC-7C CaledonianFS2004 – Mcdonnell Douglas DC-9-31 Valujet