Markoz wrote on May 13^th, 2016 at 1:03am:

Quote: Could you explain a bit more? The Base Pack for aircraft for P3D are the full price, regardless of whether you own the FSX Base Pack. However, the Expansion Models are suitable for FSX, and P3D. This is how it currently works using the 727 as an example: You already bought the 727-100 Base Pack, the 727-200 Expansion Model, and the 727 Freighter Model for FSX. Now you want to switch to P3D. You will have to buy the 727-100 Base Pack P3D version, but not the Expansion Models. With the latest updates, the Expansion Models can be installed in FSX, FSX-SE, and P3D. [quote]I own the 767 Base & K-767 Tanker exp., C-130 Pro, B-52...are the additional 767 expansions free?

NO! You still need to buy any Expansion Models that you don't already own. [/quote]
What I own are the FSX versions (FSX Acceleration) are the expansions free?

Currently own:
767 Base
K-767 Tanker expansion
C-130 Pro
B-52