Drawings of failed attempts to raise the Titanic structure

As it was such a complex feat of engineering, raising the ship structure out of the water required numerous attempts. These drawings show “some notable failures” which were encountered within the process. 

Hand drawn diagrams about raising a boat structure from underwater
Original artwork for Raising the Titanic, page 1, Tim Hunkin, 1983, WSI/5/3/47/1/5 
Hand drawn diagrams of experiments with oil drums
Original artwork for Raising the Titanic, page 2, Tim Hunkin, 1983, WSI/5/3/47/1/5