GAR-E and Spender
GAR-E was MACH's ethanol and nitrous oxide engine. Spender was the plumbing, tanks, valves and controls used to supply and test it. The system progressed from inert flows and ignition failures to sustained in-chamber combustion with New GAR-E in August 2024.
See the full MACH timeline, including Spender's component and pressure tests
Test campaigns
Final New GAR-E campaign
The engine reached about 1.07 kN before the graphite nozzle separated during the September 29 hot fire.
Launch Canada sustained hot fire
MACH's first verified sustained in-chamber combustion, followed by evidence of injector maldistribution and burn-through.
New GAR-E injector cold flows
Two flows characterized the 12-orifice injector and found excess fuel-volute pressure loss.
Integrated liquid-propellant ignition
Combustion formed downstream near the throat rather than anchoring inside the chamber.
Launch Canada ignition attempt
Propellant delivery and abort controls worked, but the propellants did not ignite.
Pre-Launch Canada cold flows
One water and two CO₂ injector flows. GUI and telemetry faults limited analysis.