Short and sweet:

I would really appreciate if some one could have a quick look at this animation test I have and let me know why the (crappy) plane seems to travel so slowly when its at the bottom of its 'dive'?

I'll post the maya file for now, but I could post pics and vid is necessary.

(I have searched around and didnt really find what I was looking for. The reason the scene is sooooo simple is the fact that I only started looking/trying/messing with animation and motion paths today, and i'm going for the easiest possible scene to start, then build upon it when I know more!)

Cheers guys!