Big ups to the MIT Rocket Team team for posting this and sharing their experience. We can all learn from this, but most importantly no one was hurt or injured. A testament to having good safety protocols in place.
Looking forward to seeing the issues resolved, and future testing carried out.
Video Caption: At T+ 2.9s a combination of insufficient grease, poor polyurethane application, and inconsistent assembly technique lead to a catastrophic burn through of the thermal liner in the middle of grain 4.
The motor self extinguished at the catastrophic loss of pressure, but the propellant which remained in the motor reignited several seconds later due to residual heat.
This test did not endanger any people. Always use care when testing rockets.
Something different, a recent video from Interstellar Technologies Inc, shows one of their liquid fuelled rocket engines having a hard start. Try and spot the chamber exiting!
A hard start refers to the tendency in liquid bipropellant engines to get very high pressure spikes during ignition. From Space Propulsion Analysis and Design.
Copenhagen Suborbitals recently launch their Nexo I rocket as they carry on down the path towards a manned space flight.
The rocket launched from the group’s mobile launch platform, Sputnik, in the Baltic Sea, of the island of Bornholm.
Unfortunately, the rocket suffered an anomaly and never reached its performance goals, plummeting nose-first into the sea as seen in the above video. The camera work was not the best so hopefully, another video or even onboard video comes to light soon. Continue reading “Launch of Nexo I”
The Delft Aerospace Rocket Engineering group recently had a failure of their DHX-200 Aurora hybrid rocket engine during a static test, this engine powers the Srtatos II rocket and was getting a shakedown, with improvements before the next Stratos II launch campaign. Below is a little more information, waiting on a further report and pictures.