(Er...their not on a ship yet, and if they were, it'd just be a pontoon, essentially two longboats(small ships) Joined together by a platform to increase their load capacity, here's a few examples)<br/><br/>m<a class="postlink" href="https://www.perebo.com/wp-content/uploads/sites/2/2014/09/mobile-floating-platform.jpg">https://www.perebo.com/wp-content/uploa ... atform.jpg</a>m<br/><br/>m<a class="postlink" href="http://dhstateparkmarina.com/assets/images/SouthBay_523CR_14-small.jpg">http://dhstateparkmarina.com/assets/ima ... -small.jpg</a>m