Stratos III Tank Work

DARE have recently been posting about the construction of the Stratos III rocket nitrous tank. The tank is aluminium lined carbon fibre over wrapped, 0.28m in dia and 4.7m long, making it a pretty epic structure!
You can read more about Stratos III here.

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Instagram Pic of the Week

DARE – Spark Torch Igniter Testing

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!

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DARE | DHX-400 ‘Nimbus’ Hybrid Rocket Test 9

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.

DARE Nimbus Hybrid Rocket Test #8

Video Caption: A student society that builds a record-breaking hybrid rocket engine powerful enough to lift an SUV? Check out the eight engine test video where we successfully tested a titanium nozzle insert!

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DHX-400 ‘Nimbus’ Hybrid Rocket Motor Test #7

Video Caption: A student society that builds a record-breaking engine powerful enough to lift an SUV? Check out the seventh engine test video where we successfully tested a 3D printed titanium nozzle!

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DHX-400 ‘Nimbus’ Hybrid Rocket Motor Test #5

The students of Delft Aerospace Rocket Engineering have been hard at it, having completed this recent test. The motor is designed to produce a nominal thrust of 15kN and burn for 28sec.

Video Caption: A student society that builds a record-breaking engine powerful enough to lift an SUV? Check out the fifth engine test video and see for yourself the reaction when it fired successfully!

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