FSX. This is one aircraft I have been really been wanting to get but just haven't haven't gotten around to yet. CaptainSim has just released service pack 1.2 which encompasses so many fixes and added features it's simply too much to list here. Moreover, this is a completely new rebuild so you will need to uninstall your current build before installing the SP. For those of you who do have it, is it good? Hopefully a new system will finally allow me to finally start examining these larger aircraft inside and out. The discount should get some of you off the fence about buying it too!