Duet

Duet is a simple, cost-effective hybrid rocket motor designed to operate in static test-stand configuration at sea-level conditions. Duet was designed, manufactured, and tested over a span of 5-months with a fully remote team and met the desired performance goals.

System Specifications

PROPULSION:

  • Fuel: 3D-printed ABS

  • Oxidizer: Liquid Nitrous Oxide (N2O)

  • Target Performance: 100lbf, 190s SL

  • Design: 6061-T6 casing, injector, & nozzle retainer with a phenolic resin chamber liner and nozzle

FLUID SYSTEM:

MANUFACTURING:

  • The outer casing, bulkheads, retaining rings, and injector are all made of 6061 - T6 aluminum and were all machined in-house

  • The test stand was configured from 80/20 T-Slot Framing and 3D printed linear bearings and interfaces.

SOFTWARE & CONTROLS:

  • Raspberry Pi and Load Cell bridge program to obtain thrust measurements

  • Remote visual monitoring system for pressure gauges

Hot Fire Test Data

Data from our second hot fire was collected via a load cell in-line with the thrust assembly. Duet achieved a peak thrust of 48 kgf or approximately 108 lbf.

Further tests and analysis will be conducted to determine other important parameters.