http://www.tadroberts.ca/ Access key="1"Tad Robertsyacht design and naval architecture

Transport Canada Passenger Vessel Stability Booklets for the charter sailing vessel Western Grace.

Transport Canada Fishing Vessel and Passenger Vessel Stability Booklets for Commercial Marine Charters, for the 68' commercial vessel Jennifer Gayle.

Stability booklets for the 68' commercial vessel Jennifer Gayle to both fishing vessel and small passenger vessel regulations. Jennifer Gayle is an older boat that has been modified with hull sponsons, thus requiring a new stability booklet. Pictured is the Jennifer Gayle stability model with tanks copied out for volume calculations.

Completed: Consulting, drawings for hull modification, trim and balance,and jet installation for Gray Marine, for their 38' high-speed rescue vessel.

Consulting, drawings for hull modification, trim and balance, and jet installation for Gray Marine, for their high-speed rescue vessel, Vessel Assist Nanaimo.

Transport Canada approval for Passenger Vessel Stability, for Lifetimer Boats and the Government of Quebec

Completed: Transport Canada approval for Passenger Vessel Stability, for Lifetimer Boats and the Government of Quebec

Jet Drive Installation for 32' Crew Boat

Commissioned by Gray Marine to develop drawings and advise on changing the propulsion system of their 32ft aluminum crew boat, Gray Launch. The client wished to change from Arneson surface drives to new composite Whitewater 306 jets. This involved alterations to the engine beds, engine mounts, aft bottom, transom, exhausts, etc. The water jets will provide increased maneuverability and safety when working alongside ships

Stability Study for 70' Wooden Charter Vessel

Every vessel carrying passengers for hire in Canada must meet Transport Canada requirements for Passenger Vessels. Requirements include some form of stability study which may include the preparing of a stability booklet. These vary depending on the vessel size, voyage class, number of passengers carried, and experience of the master and crew. In many cases older vessels are brought into passenger carrying with little or no documentation. I am often requested to facilitate and research these vessels, and prepare the necessary documents. This may involve a simple roll timing experiment, coupled with a 3D computer model to arrive at basic stability characteristics for any vessel. Or it may require extensive measurements of a hull, creation of computer models, and damaged stability studies prior to developing a complete stability booklet as required by TC. Canadian vessels carrying more than 12 passengers will require a damaged stability study and this involves establishing watertight bulkheads to control flooded trim and stability.

TC Approval for Small Passenger Vessel Clearwater

New Construction. TC Approval to ISO 12217-1 and ISO 11812 Canada is in the process of adopting ISO standards for small craft stability, construction, safety, etc.

The Clearwater project involved measuring a hull already under constuction, advising on ISO requirements, creating a 3D hull model, and doing an inclining prior to completing the traditional stability booklet as well as the ISO worksheets required to certify the vessel to carry 10 passengers.