🚀 Firehorn’s Recovery System Update💥 The Firehorn team has completed another development test on the Recovery sub-system, this time focusing on the line cutter. In this test, the cutter successfully sliced through a Dyneema rope—much stronger than what we plan to use—using just 0.5g of black powder. The line cutter is a critical component in the parachute’s two-stage deployment system. Initially, the parachute opens partially, held in place by a reefing line. Once the cutter severs the line, the parachute expands to its full size, enabling a controlled descent. This test, although not involving the final design or flight hardware, demonstrates the team’s ability to experiment with various ideas during the development phase. By working with robust materials like Dyneema, we can assess whether our designs are on the right track before moving forward with a finalized version. As always, safety protocols were followed closely throughout the test. We'll continue refining this and other subsystems in the coming months, stay tuned!🚀✨ Main Sponsors: APCO Technologies SA | EPFL | Constellium Gold Sponsors: Kistler Group | maxon | 3D PRECISION SA | Schoeller-Bleckmann Oilfield Technology (SBOT) | Swagelok Switzerland | ARBOR Fluidtec AG #RocketDevelopment #LineCutterTest #EngineeringProcess #FirehornRocket #RecoverySystem #SubsystemTesting #SpaceTech #EPFLRocketTeam
Dom Buta
3w
Congrats! What was the diameter of the dyneema rope? Our rope cutter uses 0.2g to cut 4mm dyneema. ;)
In Thrust we trust. Founder and CEO of IBB.ch and Swiss Propulsion Lab SPL.. Advisor for Hephaestus/Perseus at #ARIS supported by ETH and Inspire
1moI guess you are aware that black powder is very hard to ignite in near vacuum conditions. Many rockets have been lost because of that. I just read that you aim for 30km... Near vacuum...