I can comment on a couple of these (edits made to thin out the list)
ORIGINAL: 50%plane
#2 It depended on how hard I crashed. I was trying to do the Bill Hempel flight with the Edge, and I was trying to rip the wing off on the runway. So I was in knife edge flight. Sometimes it would break, sometimes it wouldn't.
#7 The "Z" CG was off on the Edge. When I do flight models for G3, that's the key issue that I look at. When I put together a real model airplane, that's what I ajust the most. It will improve the flight characteristics of the plane. Unfortunately, I don't see that happening that much. As far as the 3D moves go, I wasn't able to see the plane well enough from my vantage point. If I was able to see the ground in the sim, that might have helped, but I was also not standing near the screen when I was flying. As far as what I tried, it seemed ok. Just not my setup. The biggest problem for me was the expo. I personally can't handle any. There must have been like 60-80% in the setup.(20% is almost unfliable for me. I like to "feel" the plane)
#7 Here's some info on the airplane editor. Others might find this handy too. In the aircraft selection window, pick an airplane and click "Copy" to make a copy of the airplane. At this point click "Edit" and this will put you into the Aircraft Editor window. You can do a lot here, but I'll fast forward to the Scaling Wizard - the two last items on the page. The two pages look like the first two below.
In this setup you can take a baseline airplane and scale it to any size, say, 120% of the original. Then there are options for the weight, motor and propeller. Auto-scaling can be used and the sim will figure out the new weight, motor, and propeller.
Alternatively, a new wingspan can be given and the weight can be given (not using the auto-scaling on weight). I mention this because people are used to their own airplanes and the main drivers are wing span and weight (or better wing loading that can be given instead of the weight).
At that point click back, and fly. The new plane will be scaled up or down per specs and the physics will be scaled accordingly.
Beyond this quick approach, things can be customized a lot.
The sim includes about 30 baseline airplanes, and from these originals about 70 more airplanes have been created in the Scaling Wizard (as described above). Any of these scaled/resized airplanes can be copied and viewed in the editor to see how things were setup for each. These ~70 scaled airplanes are included in the category: "Scaled: All Airplanes" (see 3rd image below). Based on the forums posts so far, I'm not sure if people have discovered this group.
#2 We have included an airplane like Bill Hempel's Edge. It's in the airplane selection category "Special Interest". We've made one wing pretty weak, so it breaks off in a hurry and then it's fun trying to fly like Bill Hempel did w/ his, all say, famous broken wing landing! (The breakage loads can be changed to stiffen up the wing.)
Michael