Big Machines

[Western SMT]

Is this the biggest bulldozer?

http://www.vincelewis.net/acco.html

Largest tracked, which they say is bigger than the NASA crawler

http://www.darkroastedblend.com/2006/11/biggest-and-hungriest-machines.html

NASA crawler

http://science.ksc.nasa.gov/facilities/crawler.html

[G-CPTN]

The Acco was initially built to be exported over to Libya, North Africa in the early 1980's, to help in land development, but as the President of Libya, Col Gaddafi was allegedly involved with International Terrorism at that time, the United Nations endorsed and sanctioned huge trading embargo's on that Country.
As a direct consequence of these trading restrictions the completed Acco Dozer was never shipped to its intended destination, but remained redundant in Italy where it was built.
In the late 1980s I was involved with the construction of vehicles which were destined for Libya. The 'customer' was the UK subsidiary of a multinational oil-exploration company. No American components were allowed to be used.