ORIGINAL: ATVAlliance

Not to sound like a ''know it all'' (I far from do!). But I wouldnt take the advise from whoever above said you can hold a 450 heli in hand to check blade tracking. While its possible...I advise against it. Its much safter to tie it/tape it down(I use metal duct tape and tape it down by the skids to my garage floor).

Check out this thread at helifreakand decide for yourself (you will need to register there to see pics I think)...

http://www.helifreak.com/showthread.php?t=34727