clipped from: i.gizmodo.com

Swedish Visby-Class Corvette Is First Operational Stealth Ship in the World

According to the experts, the corvettes are "electronically undetectable at more than 8 miles in rough seas and at more than 13.5 miles in calm seas". Their creation was an answer to the incursion of foreign submarines in Swedish waters in the mid-eighties.

The future is here: This water-based Imperial Star Destroyer is really the spectacular Swedish Visby-Class corvette, the first operational stealth ship in the world, powered with silent waterjets and made with non-magnetic composite materials.