Leadership Team

Meet Our Highly Skilled and Experienced Team

Your Project Is in Good Hands

ATA’s senior management team have worked together for many years. They are widely known in the structural dynamics field as industry leaders in the application of test and analysis to develop successful designs for aerospace and other highly engineered structures.

Joshua Davis


Mr. Davis has been with ATA for nearly two decades. He has held roles in many of the company’s technical groups and has used that experience to investigate and apply multidisciplinary solutions for the design, analysis, and testing of complex products across a multitude of industries.


Eric Blades, Ph.D.

Vice President & Technical Fellow

Dr. Blades has over 25 years of experience in engineering consulting and methods development. His technical expertise is in fluid and structural dynamics, with a focus on fluid-structure interaction (FSI) problems. He leads advanced research and development efforts at ATA, including new multiphysics methods development in these disciplines.


Paul A. Blelloch, Ph.D.

Vice President, Aerospace Analysis

Dr. Blelloch’s technical expertise is in the analysis of complex dynamic systems, particularly in the areas of control-structure interaction, optimization, model reduction, dynamic loads, model updating, and vibroacoustics. He has written over fifty technical papers.



Ralph D. Brillhart

Vice President, Test

Mr. Brillhart brings over 30 years of testing experience to ATA. His previous experience with SDRC includes project management in Testing Services, performing a wide variety of dynamic and static durability and qualification testing of structures.



William Cherom

Treasurer & Chief Financial Officer

Mr. Cherom has nearly four decades of diverse experience in budgeting, accounting, systems, databases, organizational communications, and technical marketing. He began his career at Hewlett Packard in Palo Alto where he worked in the Corporate Offices as well as Manufacturing Division and General Systems Division as a contributing manager in accounting and systems groups.



Tom Deiters, P.E.

Vice President & General Manager

Mr. Deiters has over 25 years of consulting experience in applying computer-aided engineering techniques and structural testing to develop and enhance designs in many different industries. Mr. Deiters has had broad exposure to all of ATA’s primary capabilities, including structural design, testing, and analysis. He spent ten years in ATA’s testing group acquiring key knowledge related to modal and strain testing for complex structures.



Tricia Sur, Ph.D.

Vice President & Senior Director, Business Development

Dr. Sur brings more than 20 years of engineering consulting experience to the ATA team. Her technical expertise is in fluid mechanics and she is experienced with numerical, analytical, and experimental work in the laboratory, towing tank, and at sea.



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