The primary purpose for development of this project is to overcome the issue of the heavy weight and higher maintainability of the existing steel Water tight/ Gas tight Doors and Hatches. The use of Composite material for development of Water Tight/ Gas tight Doors and hatches significantly reduces the weight of the doors, which makes them easier to handle. The composite material reduces the weight and does not corrode. The method of construction is preferably Grid stiffened Sandwich Structure for lowering the weight and increasing stiffness to limit the deflection.
