Thanks CD for the links for the SAE standards. Does it include ATLAS and KSSU standards?
Pilot Mike, if you do write a journal article that would be brilliant! 
So basically the main problem is the weight issue as well as the wheels?
I have looked at the old thread as posted by dubh and I felt it didn’t really cover much of what I wanted to know for my project but thank you for finding it.
[FONT='Arial','sans-serif']
I was also wondering which standards are used more in commericial airlines? ATLAS or KSSU?[/FONT]