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Brian Parrelli

Propulsion - Senior Leadership - Relativity Space

Brian Parrelli is an accomplished engineering and manufacturing leader specializing in rocket propulsion and turbomachinery. He has extensive experience in designing and producing turbopump-fed rocket engines and dynamic assemblies for space flight applications.

As of early 2025, Parrelli is no longer with Relativity Space. He spent 18 months working at Blue Origin on the BE-4 engine program, which he described as an experience with "some of the most dedicated and passionate people" he has ever met.3 Prior to that, he worked at Relativity Space for about 1.5 years, calling it "one of the greatest adventures" in his over 40 years in the field.1

Parrelli's expertise includes:

  • Mechanical design
  • Computational analysis
  • Manufacturing
  • Testing
  • Team leadership

He is particularly skilled in the intersection of design, manufacturing, integration, and testing of rocket propulsion systems. Parrelli has been involved in innovative projects, such as the development of additively-manufactured rocket oxygen turbopumps at Relativity Space.4

Throughout his career, Parrelli has demonstrated a passion for challenges and excellence in team-building. He has also shared his knowledge and experiences through presentations at industry events, such as the Joint ARMY-NAVY-NASA-Air Force (JANNAF) Meeting, where he discussed Relativity's additively manufactured turbopump development.2

Highlights

Inszone Team
Dec 12 · barber-nichols.com
Barber-Nichols Presents at JANNAF with Relativity Space
Dec 22 · youtube.com
Mesh Generation and Assigning Boundary Conditions in Ansys CFX
Mesh Generation and Assigning Boundary Conditions in Ansys CFX
Jan 7 · leg.colorado.gov
[PDF] OFFICE OF THE GOVERNOR FY 2014-15 JOINT BUDGET ...

Related Questions

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Brian Parrelli
Brian Parrelli, photo 1
Brian Parrelli, photo 2
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Location

Moorpark, California, United States