Our two hulls are designed to work together, and the asymmetry goes beyond having one larger starboard hull and one smaller port hull. Each of the hulls is asymmetrical: If you were to draw a longitudinal line down the middle of one of the hulls, the port side of each hull is different than the starboard—they are not mirror images of each other, as is the case on monohulls and most catamarans. The design allows the boats to move forward cutting straight through the water even if the propulsion force is only coming from one side. Aspens also have an advanced design that allows the bridge to cut through waves without pounding and funnels the water swiftly and easily into the tunnel. This gives Aspens a smooth ride and tremendous seakeeping capabilities even in severe conditions while retaining the inherent side to side stability catamarans are known for. Not only is this a safe and efficient design but it maximizes comfort of those aboard, and lends predictability of movement, creating a well-mannered responsive feel at the helm.