Well worth watching if you're interested in that sort of thing.
Second step was choosing and learning to use a 3D modeling tool to develop something to import into PhoenixBuilder.
Decided to use Blender as I saw it mentioned somewhere and one of my sons is looking at it as well.
Still working through those, but encountered a potentially show-stopping issue when I tried to import any Blender .obj file into PhoenixBuilder.
Luckily, fazerpileit over in the RCUniverse.com forums had discovered the secret - you need to check the "write Normals" box in in the obj export options.
From this point, my basic approach will be to build a relative simple profile version of the F7F in Blender and get it to work in PhoenixBuilder.
Presuming that gets done, I'll then attempt to build a complete 3D model in Phoenix (or find an existing one if I'm lucky).
Then I'll import that into PhoenixBuilder and turn it into a flying model.
Thinking that this will keep me busy for a while.