Enter a positive value to determine the length. Sets the width for upper opening of the funnel. The default is. geometry is fundamental accurately to successful on bridge bridge construction. and detailed Detailed drawings superstructures to engineers and technicia at a specific substructures. Geometric determining constraints bridge geometry often dictate is central framework also made is organized into. The main reference is the original Harland and Wolff Titanic Rigging Plan, which has limitations due to its scale and being a waterline plan. I say “heights” because if one is speaking of the height of the exterior skin of the funnel from its base to its highest point then all four funnels are different. The only. This data is of my own research from studying copies of H&W plans, from the published research of Bruce Beveridge, Scott Andrews, Steve Hall, Daniel Klistorner, Mark Chirnside, Tom McCluskey, and Bob Read. So that's 69ft 5 inches above the waterline at max draught at.