Ryan Mackay Email & Phone Number

Lead High Pressure Air System Engineer, Engineer II June 2014-Present Developed and maintained the OHIO Replacement Class Submarine high-pressure air system diagram, 3D system arrangements, detailed construction drawings, test procedures, and operating instructions. o Maintained system technical/operational/safety/sustainment requirements through a system diagram from early concept development through detailed construction drawings. o Developed and maintained 3D CAD piping arrangements for a large distributed system integrated throughout entire submarine 3D model to meet system and crew operation requirements. o Analyzed system component design (pipes, fittings, valves, flasks, regulators, etc.) to strict naval submarine piping requirements including pressure ratings, material standards, and welding NDT requirements. o Developed detailed construction drawings outlining acceptable part numbers, construction NDT (PT, MT, RT, VT) requirements for welding as well as system hydrostatic and leakage testing. o Maintained interfacing system pressure and flow rate requirements using detailed compressible flow calculations throughout product design.  One month rotation as Electric Boat liaison to BAE Systems in the United Kingdom. o Lead integration and knowledge transfer of US HP air system design into the UK submarine platform.

Lawrence, Ma

• Designed, built and programmed a prototype electromechanical system to completely automate Pick and Place tongue label attachment on multiple styles and sizes. o Redesigned and integrated an existing conveyor belto Programmed a PLC using ladder logic to control both electromechanical and pneumatic systems. o Collaborated with other engineers to implement safety and reliability into the design.• Worked with the factory to finalize shoe making processes and tooling for domestic manufacturingo Used Six Sigma and Design of Experiments to roll out ideal settings for factory production for No-Sew Fusing, RF Welding and Pad-Printing

• Tutored students in various classes including Calculus I, II, III Physics I, III Statics, Dynamics, Strength of Materials, Fluid Mechanics, Dynamic Systems, Convective Processes, Heat Transfer, MatLab, SolidWorks, and FEMAP• Effectively communicate and taught important principles• Teacher Assistant for undergraduate Fluid Mechanics; graded and assisted with all 150+ students enrolled

Woburn Ma

• Completed a summer project reducing part variability and reject rates of an automated sonic welding assembly.o Tracked reject rates and variability using control charts/Six Sigma analysis and Minitab.o Performed Design of Experiments to find optimal settingso Designed and implemented changes in both operation and hardware to reduce variability o Reduced reject rate by 6% saving the company 60,000 parts per year• Worked with engineers to find defects in injection molding process, including:o Development of camera system to detect part integrity and micro crackso Performed quality checks such as burn tests and Water Entry Pressure Testso Monitored and cataloged defects in final product