Well, Skyline spammed out a high quality B727-200 mesh for a request, and i decided to try to help prep it for animation and stuff. After spending a lot of time working on Takety's 737s, I've gotten some idea for how to set up the parents and such, and have had some modest success with the inboard front flap system. The landing gear, from all the references that I can find, doesn't have to extend or shorten like the 737 landing gear during extension or retraction.
It should be noted that this is only in blender, and I haven't exported it. For the most part I've been naming the different parts so they be easily identified and adding the appropriate empties.
I got most of this done in the 2 hours of free time
Here's a shot with the back steps down.
