On request from many users I have put together a stripped-down AI (non-flyable) version of Draken for FSX. It contains five LODs with about 30k polys in the highest LOD (compared to 75k in the full model) and – of course – no interior model. You can find it on the Download page (registered users only).
The AI version links to the sound folder in Draken 4.1, so you need to install the full model first if you want the original sounds.