I believe if the blades of these trucks which I assume run on hydrolic fluid could be made to completely rest on the ground, the trucks would have a hard time moving without tearing up the street... Any ideas?? This may be a case where the insulation foam could lock up the blade...
I hope more people will join your thread. Meanwhile some ideas were discussed here too that might be helpful. http://iran.whyweprotest.net/news-c...d-anti-riot-vehicles-supplied-iran-china.html