A few updates from Boston University Rocket Propulsion Group as they work on their newest rocket, LAD.
Riley Meik and Alex Laraway of the BYU Rocketry High Altitude Team static-fired their new O5900, carbon fiber filament-wound rocket motor. The motor burned for 5 seconds, producing a max thrust of 1850 lbs-force! This motor will be used in June on a high altitude demonstration rocket that will launch at Spaceport America, NM.
Video Caption: On March 3rd, 2018, the SDSU Rocket Project had their second static hot fire of a LOX/LCH4 Engine designed towards the FAR/Mars Launch Contest. This upload contains the compiled footage of all engine burn videos during Static Hot Fire B.
… This test produced 65,077 Ns at a peak pressure of 1440 psi and 22,970 N of thrust.
For all my imperial unit readers, that is 5163lbf of thrust, but the test did not go entirely to plan with the motor ejecting several thermal liners during the burn.
The team states,
…As the design pressure and thrust of this motor were greatly exceeded, we think it likely that aluminum combustion (triggered by the increased residency time in a longer motor) lead to the unplanned increase in burn rate, the increase in combustion pressure, and then triggered the cascade of failures.
The motor did well to hold up, of which I look forward to the next test. This size motor will propel the teams Hermes rocket to 80,000ft in June at Spaceport America.
From the team’s website,
Launch planned for APRIL 2018
TRAVELER III will be USCRPL’s third attempt to launch a rocket to space. The rocket has a nominal predicted altitude of 415,000 ft, which will exceed the Karman Line, making USCRPL the first student group to launch a student built and designed rocket to SPACE!
This, of course, follows on from the recent successful static fire of the Graveler II engine.
Fingers crossed the third time is a charm!
I'm very proud of all of the students of @rocketprojectatucla who worked tirelessly to pull off a successful test launch of a liquid oxygen/ethanol propellant rocket to ~12.5 k feet. The paint job was half-finished and some of our last-minute mechanical solutions to problems were scrappy, but they've come a long way as a team since I first joined @ucla_engineering. I've learned a lot from them and I can only hope my mentorship will inspire them to keep doing their best in their careers after college to change the future of aerospace for the better.
More info as it comes in.