Mal wieder ein neues Startup,
Ursa Major Technologies, das sich aus diversen Ex-Blue Origin BE-3 Mitarbeitern und Ex-SpaceX M1D Mitarbeitern zusammensetzt. Man arbeitet an zwei Triebwerken, die beiden auf einem hohen Anteil an 3D-Druckteilen basieren. Verkauft werden sollen diese dann an diverse Anbieter von "Venture-Class" Nano-/Micro-/Smallsat-Trägerraketen. Weitere Informationen soll es wohl nach den ersten Testzündungen geben. Mir stellt sich nur die Frage, wieviele Firmen tatsächlich Interesse daran haben, eine Trägerrakete zu entwickeln, ohne an eigenen Triebwerken zu arbeiten.
Ursa Major Hadley- Oxidator/Treibstoff: LOX/RP1
- Schub: 22 kN
- Einsatzzweck: Cluster Erststufentriebwerk/Einzelnes Oberstufentriebwerk
The Ursa Major Hadley is a 5,000 lbf sea level thrust, liquid oxygen and RP-1 engine. Designed for full-envelope service and simple integration, the Hadley is a reliable engine solution for a wide range of vehicles in the orbital and suborbital launch regimes. Integrated fluid controls and electronic subsystems accompany this turnkey propulsion package for rapid customer utilization.
Ursa Major Ripley- Oxidator/Treibstoff: LOX/H2 (laut Homepage) bzw. LOX/RP1 o. LOX/CH4 (laut Jon Goff - siehe unten)
- Schub: 156 kN
- Einsatzzweck: Erststufentriebwerk für Trägerraketen mit 150kg Nutzlast LEO
An evolution of the Hadley architecture, the Ursa Major Ripley engine is a 35,000 lbf class, liquid oxygen and hydrocarbon engine. Leveraging the manufacturing and design methodologies of the Hadley, Ripley is a competitive boost propulsion solution for a variety of "Venture class" vehicles, namely those sized to deploy approximately 150kg payloads to low earth orbit.
Jonathan Goff, seinerseits Gründer von Altius Space Machines (und ehemals Masten Space Systems), hat eine Tour vor Ort bekommen und war recht angetan:
You beat me to the punch on starting a thread about Ursa Major. I had intended to start one a week ago, but wanted to check with them first to see if they wanted the attention. Apparently they're not planning on saying much in public until they have their engine firing, but were happy to have a NSF thread started for them.
Key publicly-available info worth mentioning:
1- They're working on a 5klbf LOX/Kero staged combustion engine that is made from predominately 3D printed parts. This engine could be used in clusters for a booster engine, or more likely as an upper stage engine.
2- They're then planning to do a ~35klbf LOX/Kero or LOX/Methane engine, also leveraging 3D printing and staged combustion.
3- They just moved into a facility in Berthoud, Colorado that includes both design/fabrication, and colocated testing facilities. I got a tour about a week ago, and it's the kind of site I would've loved to have found back when I was thinking Altius was a rocket company.
4- Their team is primarily ex-Blue Origin engineers (a lot of core members of the BE-3 team), with several having worked at SpaceX on Merlin 1D before that. This team is sharp, and really seem to know what they're doing. Though the proof in that pudding will be in the testing...
Quelle:
http://forum.nasaspaceflight.com/index.php?topic=41331.0Ein paar Bilder von tatsächlicher Hardware gibt es auf Instagram:
https://www.instagram.com/ursamajortechnologies/