1. Pedestal BaseTiller Strut Track Platform ACKNOWLEDGMENTS Final Achievements Project Overview The goal of this project is to re-design, build, and test a portable, detachable seating system that will allow disabled users to participate in competitive sailing. The system must utilize the user’s rotational arm motion to steer the boat’s rudder and allow adjustment of the user’s position by rotating along a bearing mounted track for leverage and view during sailing scenarios. Safe operational use for at least 4 years System controls boat rudder and shifts weight Designed to fit specifically in Sonar Keelboat Portable & non-permanent installation into boat 25% weight reduction of system Increased functionality of the system Reduction of lines tangling during operation Improved comfort and custom fit for user Aleef Mahmud Mitch Rankie Steven Gajewski Christopher Sullivan Edward Hanzlik Kate Leipold Richard Ramos Keith Burhans Passenger Interface - Holds the passenger safely and securely, travels along the bearing mounted track to provide weight transfer to each side of the boat, and includes hand crank attached to lines that control the tiller arm Track Platform - Secures the track which the passenger interface travels along Pedestal base – Secures the point upon which the passenger interface pivots around its arch of travel Tiller Strut – Guides lines to control the tiller arm Tiller arm – Attached to the boat’s rudder which controls the steering Team Members: Faculty Guide: Technical Guide: Customers: Customer Needs System Overview Functional Decomposition New Features Restraints – Wheelchair butterfly harness and impact racing seat for improved restraint, increased comfort, and greater safety in case of collisions Seat Tilt – Permanent tilt of 10 degrees designed into the seat frame Quick release hand grips – Improved attachment location and faster attachment/detachment time Crank System – Fully adjustable crank system that also rotates out of the way for entry and exit Hand Hold Brackets – Secure track platform and allow rerouting of tangle prone lines Passenger Interface Utilize user’s rotational arm motion to control the boat’s rudder Complete motion around arched track while safely securing user Fits into Sonar keelboat without modifications to the boat Custom fit for user through use of adjustment points Weight of system reduced by 18 lb or the equivalent of 17% 20 lb user force input amplified to 128 lb by the system Entry time reduced to 11 min from original 30 min Detachment time reduced to 25 seconds from original 5 min Reduction of lines tangling during operations Wider angle of view for user when rotating around track Mechanical Engineering Richard Ramos for serving as the customer representative Keith Burhans for lending the team a Sonar Keelboat Professor Hanzlik and Professor Leipold for serving as project guides to assist the team Robert Kraynik for consulting during manufacturing phase Project is funded by the RIT Senior Design Center and National Science Foundation Award No. BES-052735 Recommendations Continue to safely reduce weight Powder coat for greater corrosion resistance Improve adjustability of system for use by a variety of users and boats Implement DFA methodology Begin implementation of electronic parts Insert Pedestal Base Attach Seat to Plate Mount to Track Platform Mount Passenger Interface on to Track Brace into boat hand holds Rest on top of Benches Mount Passenger Interface Rest on top of Deck Attach next to back of Boat and route lines Passenger Interface Track Platform Pedestal Base Tiller Strut Passenger Interface Pedestal Base