RE: Software for aerobatics
I'd probably do it in AutoCAD 2005 but any of the cheeper versions would do, it depends how carried away you want to get. I design highways for a living so I am used to modelling things in 3D but you could spend hours, even days modelling an aerobatic schedule. sure would look nice all shaded tho!
It would be quite straight foward to do in 2D using AutoCAD LT or similar, even Corel Draw would make a nice job of it.
Send me your schedule and I might have a play if I have some spare time.
Cheers,
Patrick Murray
New Zealand