30 years of the USS Blueback docking at OMSI, and did you know just how much sub was submerged in the Willamette? 🤯 The Blueback was built by the Ingalls Shipbuilding Corp. in Pascagoula, MS. Using a revolutionary teardrop hull design and utilizing high tensile HY-80 steel alloy, the Blueback, when launched, could dive deeper & was more maneuverable than other subs of the world at that time. As the last of the diesel subs, it was also quieter & more mechanically reliable than the larger nuclear