The crane was assembled at Lloyd Werft in Bremerhaven, Germany. Four 87m long steel platform legs each weighing 920t already settled into their jacking position on the 139m long and 38m wide vessel.
For the job Mammoet designed, fabricated and delivered tailor-made top lifting tools and a tailing frame to ensure that the legs, that have no lifting points could be hoisted securely.
In addition to the platform legs, Mammoet also installed four spudcans, using a special engineering method. The method involved placing the partly rigged spudcans on the seabed, moving the Aeolus over it and connecting the spudcan with the leg with the use of cranes and divers.