A10,

Great video...I came across one or two similar in my initial hunt for info...including one that appeared to be "slingshot" launched with no gear, similar to some of the delta configs in your video.

The plane I watched yesterday didn't have the exhaust note of any of those, rather it sounded exactly like the last plane in your video, much more the note I think of when I think "jet".

Which are the turbines and which are the ducted fans, I assume the different sound denotes which is which?

Thanks again,

Joe