FS2004 Westland Welkin MK1 flight2000it 15 years ago FS2004 Westland Welkin MK1. Westland twin-engine high-altitude interceptor. By J.R. Lucariny. 2 Mb – FS2002/FS2004 Westland Whirlwind Mk I– FS2004 Royal Navy Westland WessexFSX – British Heavy Fighter Westland Whirlwind Updated