Each of the two craft in service received deep maintenance every other night, which included the engines, auxiliary power units and especially the skirt. The whole affair required the craft to be raised about four meters from the ground by means of hydraulic jacks. It was a precise, heavy and intense business, but it was one the Hoverspeed team seemed to have mastered as though it was nothing more than changing a tyre on a car. Please like and subscribe if you enjoyed it. Thank you.