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Propulsion / Research · 2023 — 2025

Axial Turbojet

Led the design, manufacturing, and testing of Penn's first undergraduate axial turbojet — owning aerodynamic profiling, structural integrity, and component optimization toward an 80,000 RPM, 35 lbf engine.

Target thrust35 lbf
Spool speed80,000 RPM
ArchitectureAxial
OrgPenn Jet Propulsion
Axial Turbojet
The assembled axial turbojet

Overview

Most student-built jet engines are centrifugal — simpler aerodynamics, more forgiving tolerances. We chose the axial route deliberately: it's the architecture real propulsion engines use, and it forces every hard problem at once — blade aerodynamic profiling, rotordynamics at 80,000 RPM, thermal management around the combustor, and tolerances tight enough for stable operation at full speed.

Engineering

I led the propulsion team through the full cycle: thermodynamic cycle analysis to size the engine, aerodynamic design of compressor and turbine stages, structural verification of rotating components, and combustion design targeting stable operation across the throttle range. Performance analysis and simulation — thermodynamics, fluid mechanics, and combustion — drove iteration on efficiency, thrust, and thermal margins.

Manufacturing

I also managed manufacturing planning and execution. The engine combines milled, turned, and additively manufactured components, all dimensioned with rigorous GD&T so that parts built by different students on different machines actually assemble into a balanced rotating machine.