DARE DHX-400 ‘Nimbus’ Test

Updated 21/6/2017: At posting the team uploaded a video of their 4th test of the engine, which judging from the team’s reaction was a success!

Video Caption: The Stratos III propulsion team was facing some issues when the engine got a burn through after the first two tests. Check out this third engine test video and see for yourself with what engine we want to take back the altitude record!

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DARE Phoenix Engine Tests

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In this video summary, you can see the three tests performed by Project Phoenix: The hybrid engine team within DARE. The engine fired in test 1 shows a thermal failure at 5.6 seconds. Engines fired in test 2 and 3 show a successful burn.

DARE Unveil Stratos III Rocket

This was live streamed, my apologies for not getting that link up in time.
Presentation starts at 7:00min in.

Key points

  • To break the European student altitude record for rocketry before Fall 2017
  • 63 students involved, international and domestic
  • 12 core team positions
  • Goal was to design and build a rocket in 1 year and to fly higher than before
  • Powered by a 15kN hybrid rocket engine, burning Nitrous Oxide and sorbital/paraffin/aluminum fuel for 28 seconds
  • 3D printed titanium nozzle
  • Carbon fibre composite combustion chamber
  • 262lt, 36kg carbon composite Nitrous Oxide tank
  • Space for scientific payloads in nose cone
  • Have capability to Livestream from onboard camera’s
  • ~8m in length and 0.28m diameter
  • 329.4kg MLOW, 104kg empty
  • Will reach Mach 4.5 and an altitude of 80km (although could be between 60-100km)
  • Nose cone will be recovered from ocean

DARE Drogue Deployment Testing

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In this video, you can see the Drogue Deployment Test of the Stratos III recovery team.

Stratos III Engine Testing

As reported earlier, DARE have begun testing of their hybrid rocket engine for their Stratos III rocket.
The engine burns an 80/10/10 Sorbitol-Paraffin-Aluminium fuel mix with nitrous oxide as the oxidiser.

Here is the video of that test.

Stratos III Engine Testing Begins

Missed this the other day, great to see engine testing has begun, the engine is expected to provide an average 14.6kN of thrust for 25sec. Look forward to seeing the results of testing!!

Aether Rocket Rollout

Delft Aerospace Rocket Engineering students recently rolled out their new rocket, Aether. Designed to be actively stabilised during supersonic flight, the rocket represents a great leap forward for the team and their active control quest.

Aether Roll Out (Credit: DARE)

Not specifically designed for altitude but for control ability through different flight regimes, Aether sports the teams Asimov solid rocket motor. Developing an average thrust of 6464N for 6 seconds, the motor makes up 1.5m of the airframe and uses 35kg of propellant.
Control comes from 4 forward mounted canards, with control output coming from the onboard XSENS IMU. Instead of a typical blow the nose cone of recovery, the recovery of Aether will involve the deployment of the drogue and main chute from a hatch in the side of the rocket, providing a reliable means for recovery at the velocities and dynamic pressures encountered.

I could keep going on, so instead, head over and check out the team’s technical page and you can read the full roll out update here.

The launch is currently planned for the 29th of April.