FSX – Boeing 737-800 Navy P8 Poseidon flight2000it 5 years ago FSX – Boeing 737-800 Navy P8 Poseidon. This is a paint for the FSX default Boeing B737-800. The P-8 Poseidon which is a military aircraft developed and produced by Boeing Defense. By David Robles 8 MB FSX/FS2004 – USA NAVY Boeing 737 P8-A PoseidonFSX USN Boeing P-8 PoseidonFSX Boeing P-8 Poseidon Low Vis