Chapter 3 - The Structure in Use
The Valhalla can be erected with a twelve man team in three days using only telescopic forklifts when transported by road. All lift motors are built into the king poles and all rigging travels with them. The king poles are laid out and attached to steel base plates, which accept horizontal loads of some 80 kN during initial lift of the king poles and downward pressure of 170 kN under maximum load. In firm soil the standard base plates can accept these loads.
, Vol. 2.1, pp.1481-1500