You can get a really good idea of your flame pattern if you start your Turbine up in the late evening/night time, Pulsar.
Here's a vid we made a while back of a night-burn:
http://www.youtube.com/watch?v=Nh0xpEQlAK4
It's not the best quality vid, as the only Cam I had available was my little Samsung ES15 stills camera, but you get the general idea.
BJ
PS - make sure that you're in really good with your neighbours before you try something like this - chances are you won't be after you do. LoL. And they're even LOUDER at night...