From what I've gathered in my research, it seems as if the only disadvantage is the inability to be used on sloped surfaces due to the fact that the mast is plumbed to 1:500. This means that the mast can only deviate horizontally 1 inch for every 500 inches vertically. And so work needs to be undertaken on the foundation to ensure exact horizontal levelling for tower cranes.
Hope that helps you... ^.^
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my crane lisence has CALM on it what does this cover
Crane Brinton was born in 1898.
The cost for renting a crane at crane hire is the range of 4500-9000 dollars. Crane hire seems to have reasonable prices away from other competitors yet seem to gain the trust of the customer.
Robert Scott Crane was born on June 4, 1971.
Thomas Frederick Crane died in 1927.