I'm sorry about the image, i fixed the problem and thank you for your comment.
And hi Mark,
Thank you also for your comment. I took a look at the website you suggested me and it looks very very cool, but the price is to high, i'm thinking more of a cheap DIY motion platform. I will first build the cockpit and then eventually add a motion platform. Talking about the weight, you are right, but i was also planing to use 2 wiper motors in pair to drive one side, that means 4 wiper motors alltogether.
Here is a picture of what i mean.
And here is a link of the website:http://www.jimspage.co.nz/intro.html
What do you think?
Thanks again to both of you,