Author Topic: Delft Aerospace Rocket Engineeing (DARE)  (Read 10118 times)

Offline Rik ISS-fan

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #40 on: 09/10/2018 07:30 pm »
Apperently the video posted by catdlr shouldn't have been made public. It showed a small KNDX rocket motor test.
Also the Stratos advanture continues with Stratos IV, planned for launch in 2019.

Yep, post deleted.
That video isn't available any more. But a new one is on twitter.

Online catdlr

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #41 on: 10/28/2018 07:45 pm »
Spark Torch Rocket Igniter Test


Delft Aerospace Rocket Engineering
Published on Oct 28, 2018

Test of the spark torch igniter performed by the Cryogenic Propulsion Team on October 16, 2018. The igniter uses gaseous hydrogen and oxygen to produce a hot flame to igniter the ethanol-liquid engine. Note that due to the extremely high temperature of the hydrogen-oxygen reactants, (almost) no flame is visible.

Delft Aerospace Rocket Engineering is a team from Delft University of Technology and one of the leading student rocketry teams in the world. Follow us on social media to stay up-to-date!

https://www.youtube.com/watch?v=IZWJ1uzVeKg?t=001

Tony De La Rosa

Online catdlr

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #42 on: 12/24/2018 10:08 am »
DHX-400 'Nimbus' Hybrid Rocket Engine Test 17


Delft Aerospace Rocket Engineering
Published on Dec 24, 2018

Test 16 of the DHX-400 'Nimbus' hybrid rocket motor for the Stratos IV student built sounding rocket.

Delft Aerospace Rocket Engineering is a student-team of Delft University of Technology and one of the largest and most advanced student rocketry teams in the world.

https://www.youtube.com/watch?v=9rQRSheZFBY?t=001

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Offline dare

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #43 on: 02/15/2019 04:43 pm »
In the Netherlands, there is a student rocket program named Stratos IV, which is aiming to shoot for space in the summer of 2019. Stratos IV is a hybrid rocket developed by Delft Aerospace Rocket Engineering (DARE), an 18 year old student rocketry team of members of the TU Delft. DARE designs, develops and tests experimental rockets for scientific purposes.

In the past DARE already made significant progress on its way to space, with Stratos II+ reaching 21.5 km in 2015. Its successor, Stratos III was launched in the summer of 2018 with the goal to get even closer to space. Unfortunately, due to an anomaly, the 8.2-meter tall vehicle disintegrated at roughly 10 km altitude.

Based on the capabilities and potential of the Stratos III design, Stratos IV was developed and builts on DARE's hybrid rocket technology. The vehicle features active roll stabilization and the most powerful student-built hybrid engine in the world, we a peak thrust of 25 kN. The design is recently revealed, and the vehicle is currently under construction for its space shot in August 2019.

Find their new design in the video below!
https://www.youtube.com/watch?time_continue=3&v=H5lGYTb1jOw
« Last Edit: 02/15/2019 04:44 pm by dare »

Offline Rik ISS-fan

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #44 on: 02/15/2019 06:46 pm »
dare welcome on NSF. Are you related to the DARE society?

I found this Delta (TU Delft) Article: https://www.delta.tudelft.nl/article/dare-rocket-team-shoots-space
Launch from the Denel Overberg test rangein South Africa.
AFAIK Dare is building two rockets for their Stratos IV launch mission. They are developed from Stratos III, the titanium nozzle was already developed for Stratos III but it wasn't ready in time. Dare will use it on Stratos IV.

Are you taking the NLR flight computer as payload again?
« Last Edit: 02/15/2019 07:01 pm by Rik ISS-fan »

Offline Steven Pietrobon

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #45 on: 02/16/2019 03:20 am »
Based on the capabilities and potential of the Stratos III design, Stratos IV was developed and builts on DARE's hybrid rocket technology. The vehicle features active roll stabilization and the most powerful student-built hybrid engine in the world, we a peak thrust of 25 kN. The design is recently revealed, and the vehicle is currently under construction for its space shot in August 2019.

Thanks for the update and best of luck on the launch. Can you tell us where Stratos IV is launching from?
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline dare

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #46 on: 02/16/2019 08:21 am »
dare welcome on NSF. Are you related to the DARE society?

I found this Delta (TU Delft) Article: https://www.delta.tudelft.nl/article/dare-rocket-team-shoots-space
Launch from the Denel Overberg test rangein South Africa.
AFAIK Dare is building two rockets for their Stratos IV launch mission. They are developed from Stratos III, the titanium nozzle was already developed for Stratos III but it wasn't ready in time. Dare will use it on Stratos IV.

Are you taking the NLR flight computer as payload again?

Indeed the titanium nozzle was already developed for Stratos III, however, some slight modification will be made for Stratos IV. In addition, the team is also eliminating the heavy aluminum combustion chamber, and replacing this by a fully composite chamber.

As you can read in the article of DELTA, the current plan is indeed to launch from the Denel Overberg Test Range. With regards to the payload, Stratos IV will again fly one (or multiple) scientific payloads on its journey to the Karman line. We will soon share more details about the exact payloads that Stratos IV will fly!

Offline Rik ISS-fan

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #47 on: 02/16/2019 05:16 pm »
Very good job by also replacing the aluminium combustion chamber by a composite one.
I've four questions concerning the composite combustion chamber:
1) Are you using carbon-fiber or glas-fiber for the chamber.
2) DARE has experience with glass-fiber, do you also have experience with carbon fiber casings?
3) Is the solid six (or alumini) involved with the composite casing development or is it part of StratosIV.
Lastly 4) are further static tests planned to prove the composite casing together with the titanium nozzle?

Another question came to mind: are you using the same oxidizer injection system as on stratos III?Or did you have to change it for the composite combustion chamber.

Thanks for the info. I'll anxiously wait for more detail about the payload.
Is there another croudfunding planned?
« Last Edit: 02/16/2019 05:21 pm by Rik ISS-fan »

Offline Rik ISS-fan

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #48 on: 02/22/2019 03:29 pm »
Thanks DARE for the nice January & February news letter. DARE Newsletters

Offline dare

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #49 on: 02/22/2019 04:20 pm »
Very good job by also replacing the aluminium combustion chamber by a composite one.
I've four questions concerning the composite combustion chamber:
1) Are you using carbon-fiber or glas-fiber for the chamber.
2) DARE has experience with glass-fiber, do you also have experience with carbon fiber casings?
3) Is the solid six (or alumini) involved with the composite casing development or is it part of StratosIV.
Lastly 4) are further static tests planned to prove the composite casing together with the titanium nozzle?

Another question came to mind: are you using the same oxidizer injection system as on stratos III?Or did you have to change it for the composite combustion chamber.

Thanks for the info. I'll anxiously wait for more detail about the payload.
Is there another croudfunding planned?

The combustion chamber for Stratos IV will be designed out of a carbon fiber structure. In the past we used glass fiber for Aether, however this will also be replaced with carbon fiber. For Stratos III already a lot of parts were manufactured out of carbon fiber (eg. tank with cf overwrap). The solids team is also considering the use of a carbon combustion chamber for the Aether mission and their Icarus motor. Within the next 2 months, we will conduct multiple tests of the DHX-400 Nimbus. Of course, the whole system will also be tested with carbon combustion chamber and titanium nozzle. The oxidizer system remains the same.

We will indeed also do a crowdfunding this year. This will likely start within a month from now and announced via our usual social media channels.

DARE

Online catdlr

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #50 on: 03/01/2019 03:58 am »
Stratos III Student Rocket - Aftermovie 2


Delft Aerospace Rocket Engineering
Published on Feb 28, 2019

Second after movie of the Stratos III launch campaign.

Delft Aerospace Rocket Engineering is a student-team of Delft University of Technology and one of the largest and most advanced student rocketry teams in the world.

https://www.youtube.com/watch?v=hp9fiRV_Nl0?t=001



Tony De La Rosa

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #51 on: 03/01/2019 09:34 am »
Stratos IV Rocket - Design Presentation

Delft Aerospace Rocket Engineering
Published on Mar 1, 2019

A re-recording of the Stratos IV design reveal presentation, the rocket aiming for space in August 2019.

https://www.youtube.com/watch?v=Lbb3Jzsv0O8?t=001

Tony De La Rosa

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #52 on: 03/12/2019 03:01 am »
Composite Overwrap Stratos IV Rocket Oxidizer Tank


Delft Aerospace Rocket Engineering
Published on Mar 11, 2019

Timelapse of the composite overwrap of the Stratos IV rocket flight tanks. This is done using the filament winding technique. The tanks are flight hardware and stores a total of 174 kg of nitrous oxide oxidizer at a pressure of 60 bar.

Delft Aerospace Rocket Engineering is one of the largest and most advanced student rocketry teams of the world. With over 18 years of experience in high-power rocketry, our goal is to reach space with a fully student-built rocket. As a Dreamteam of Delft University of Technology, we aim at providing students with a hands-on experience that is unique in this world. Next, to our Stratos and Aether flagship projects, the society also conducts fundamental research in all fields of sounding rocketry, such as propulsion, recovery, control, structural design and recovery.

https://www.youtube.com/watch?v=g9vLLQrF7mY?t=001

Tony De La Rosa

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