2022-11

Nakuja Project

University-based amateur rocketry programme at JKUAT working toward a liquid-propellant rocket capable of placing nanosatellites in low Earth orbit. Built and launched a series of high-power solid-motor rockets — N-1 through N-4 — and contributed propulsion research published at JKUAT-COETEC.

Overview

The Nakuja Project is a student-led rocketry programme at Jomo Kenyatta University of Agriculture and Technology (JKUAT), Kenya. The goal is to develop a liquid-propellant rocket capable of delivering nanosatellites into low Earth orbit — making Kenya and the broader East African region contributors to the global space economy.

All work is open source, low-cost, and student-operated in partnership with the Kenya Space Agency (KSA).

My Involvement

I joined the propulsion sub-team during the N-2 development cycle and contributed through the N-3 and N-3.5 launches. My work spanned motor design, static fire testing, and data acquisition — and fed directly into two peer-reviewed papers published at JKUAT-COETEC 2024:

  • Development of Solid Propellant Motor for Low Altitude Model Rockets — N-2 motor (35 N avg thrust, 34 m apogee)
  • Development of a Solid Propellant Motor for High-Powered Model Rockets — N-3 motor (151.7 N avg thrust, 280 m apogee)

Propulsion Development

Each rocket in the Nakuja series uses a custom solid propellant motor designed, fabricated, and tested by the team. The propellant is a potassium nitrate / sucrose-dextrose mixture — chosen for availability, cost, and predictable burn characteristics.

The nozzle geometry is convergent-divergent, machined in-house from mild steel. We validated designs using static fire tests on a purpose-built thrust stand instrumented with load cells and a custom data acquisition system that logs thrust, chamber pressure, and burn time.

Key milestones:

| Rocket | Launch | Avg Thrust | Apogee | |--------|--------|-----------|--------| | N-1 | May 2021 | — | ~50 m | | N-2 | November 2022 | 35 N | ~34 m | | N-3 | January 2024 | 151.7 N | ~280 m | | N-3.5 | May 2024 | — | — | | N-4 | November 2024 | — | — |

KSA Partnership & Broglio Visit

The Kenya Space Agency facilitates our launch clearances and has hosted the team at the Broglio Space Center in Malindi — Kenya's historic satellite tracking facility. The visit gave the team hands-on exposure to ground station infrastructure, satellite dish arrays, and orbital mechanics in a professional setting.

Photo Gallery

N-1 and N-2 rocket models

N-1 and N-2 rocket models

N-1 launch prep in the field

N-1 launch prep in the field

Post-fire solid motor casing

Post-fire solid motor casing

Machined convergent-divergent nozzles

Machined convergent-divergent nozzles

JKUAT Innovation Exhibits

JKUAT Innovation Exhibits

Team design session

Team design session

At Broglio Space Center, Malindi

At Broglio Space Center, Malindi

Broglio ground station dishes

Broglio ground station dishes

Broglio satellite tracking array

Broglio satellite tracking array