rockets

Ember

2026 9km Liquid Bipropellant Rocket

Ember is ICLR’s liquid bipropellant entry for the L9 category at EuRoC 2026. Its pressure-fed propulsion system uses isopropyl alcohol fuel and nitrous oxide oxidiser, and the vehicle carries a custom grid-fin module and a recoverable experimental payload.

Length
5.724 m
Diameter
205 mm
Wet mass
87.9 kg
Dry mass
61.0 kg
Propellants
Isopropyl alcohol / nitrous oxide
Total impulse
40,960 Ns
Tested maximum thrust
7,000 N

Technical Report

Ember vehicle render showing its major sections