Vetted SpecialistsExample profilePriya K.Propulsion Engineer, Liquid Engine Injector and CombustionResponsible engineer for the main injector of a 200 klbf-class LOX/methane gas-generator engine — element design, manifold hydraulics and face cooling through CDR, 3 build iterations and 85 hot firesResolved a 1,100 Hz chug instability at low-throttle by re-tuning injector pressure drop and adding acoustic cavities, verified stable across 40–110% throttle in 12 dedicated stability testsOwned CEA and in-house cycle balance updates that closed the engine on Isp and mass targets after a 6% turbine-inlet-temperature reduction driven by materialsInjector designCombustion stabilityCycle analysis
Vetted SpecialistsExample profileDarnell W.Senior Propulsion Engineer, Solid Rocket MotorsDesigned grain geometry and ballistics for a tactical boost motor to a 15-second thrust-time trace within 3% of prediction on first static fire, including insulation and liner thickness marginsOwned nozzle and igniter design for a two-pulse strategic motor through qualification — 14 static fires, thermal-structural analysis of the throat and exit cone, MIL-STD-1901 igniter safety reviewLed root cause on a case-bond anomaly found in CT inspection, changing the cure profile and liner process and retiring the finding across 3 motor lotsGrain design and ballisticsNozzle and igniterQualification test
Vetted SpecialistsExample profileOmar Z.Lead Propulsion Engineer, In-Space Propulsion and Feed SystemsOwned the bipropellant propulsion subsystem for a GEO satellite bus — 22 N and 450 N thrusters, feed and pressurization schematics, valve and regulator specs, 8 pressure-drop and priming-transient models delivered to PDR and CDRQualified a green-monopropellant thruster from engineering model through 60,000-second life test, owning catalyst bed thermal design and the hot-fire test plan and redlinesCut propellant-loading and leak-check time 30% by redesigning fill-and-drain valve layout and P&ID for a 6-satellite-per-month production lineFeed and pressurizationThruster qualificationSpacecraft propulsion
