What does FAR do?

[KerbMav]

I understand it makes it easier for slim rockets to gain altitude and speed, but cancels the advantage of the wide asparagus designs?

Is it only a plugin changing calculations of drag, lift etc. or does it come with new parts?

Does it work with any part mods?

[Motokid600]

No new parts I believe. It simply incorporates a more realistic drag model. The shape of your rocket will factor in to the drag model with FAR. I've yet to try it. I hear its a bit hit and miss.

[Tyren]

As fir that what Motokid said. It adds a more realistic lift/drag model to the atmospheres of the planets. Imho it is way more difficult to get aerodynamic Frames working there, but it feels quite more realistic compared to vanilla System.

And yeah, the bulkier your ship, the more it is affected by heavy drag influence. Asparagus designs still work fine, just dont use full throttle if not necessary, the key word is "terminal Speed".

Edit: the kraken eaten some of mah letters.