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After the first version of the Stratos III Main Valve proved unsuccessful, the design was entirely redone. Actuated by a powerful motor and gearbox from Faulhaber, this valve will open right at the beginning of the launch to provide the engine with 6 kg of nitrous oxide per second.⠀ It is very important to open the valve fast to reach a high enough velocity so that the rocket is stable when it leaves the tower!⠀ We would like to thank Faulhaber for their support of our project!⠀ ⠀ #dare #delft #tudelft #dreamteam #StratosIII #breakingboundaries #space #rocket #rocketengine #reachingspace
As a member of the team put it,
“Launching a big rocket from Spain in July, get hyped!”
At 8.2m in length, 0.28m in diameter and producing on average 15kN of thrust for 25s, I could not agree more!!
Check out more info on Stratos III here.
The 11th engine test is finally here! After the success of the last test, we are happy to announce that test 11 yielded an even better result! Not only did we manage to reach the full design burn time of the engine, we also even managed to extend the burn time of the engine, improving the total performance of the engine. Are you curious to see what burn time we reached? Then check out this video!
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#EngineTestingWeek #FunFactFriday Do you know that the flame in the Stratos III combustion chamber burns at temperatures of over 2500 °C?⠀ ⠀ That's enough to melt all commonly used metals and it's half the temperature of the Sun's surface!⠀ ⠀ #StratosIII #dare #tudelft #dreamteam #rocket #rocketengine #engine #propulsion #christmas #enginetest #goodvibes #instacool
Seems I have not been the only one burning out spark plugs and having failed ignition! (My last series of testing was a headbanger because of this!)
Video Caption: A student society that builds a record-breaking hybrid rocket engine powerful enough to lift an SUV? The Cryogenic Propulsion Team recently tested their spark torch igniter for the second time. Watch the video to check it out!
Video Caption: A student society that builds a record-breaking hybrid rocket engine powerful enough to lift an SUV? Check out the ninth engine test video. Unfortunately, 12 seconds into the burn an engine failure occurred.
Currently, it is believed the failure was caused due to an injector failure. It is hypothesised that the injector overheated due to an instability causing an increase in Oxidiser mass flow, which led to the chamber wall overheating and finally failing. A low and high-frequency oscillation event has been seen in the data and research to minimise these oscillations is being conducted. Our engineers are working hard on a forensic analysis to discover the cause and find a solution.
Due to our thorough safety procedures, no personnel were here harmed, however, one pumpkin was never seen again.