Author Topic: Delft Aerospace Rocket Engineeing (DARE)  (Read 6406 times)

Offline Steven Pietrobon

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Delft Aerospace Rocket Engineeing (DARE)
« on: 12/24/2015 04:06 AM »
Here's an amateur group from The Netherlands that has the European amateur rocket altitude record of 21.5 km with their Stratos II+ rocket on 16 October 2015 from the El Arenosillo base in Southern Spain. They were going for 50 km. There's a cool video. They are using a hybrid engine with nitrous oxide oxidiser and a mixture of sorbitol, paraffin and aluminium powder fuel.

http://dare.tudelft.nl/

Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #1 on: 12/24/2015 04:13 AM »
Launch of Stratos I from Sweden on 17 March 2009 to an altitude of 12.5 km.

« Last Edit: 12/24/2015 04:16 AM by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #2 on: 12/24/2015 04:22 AM »
Stratos II misfire on 15 October 2014, also from Spain.

Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Rik ISS-fan

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #3 on: 01/25/2016 12:49 PM »
DARE has updated their site a bit lately. But first some things that have been known for some while.

First I will point to the Dare intrest drink presentation from last September. link (direct download)
Lots of information about current projects at DARE are in this presentation.

Last year in November there should have been a launch opportunity at 't harde (SLD 2015-3), but because nothing was reported about the event, most likely it was canceled because of bad weather. At least two events would have been executed by Dare in november. An liquid engine test, and the launch of the active controlled CSL v7s for the ACT team. Also a Transonic Reasearch Vehicle TRV-1 was planned but I'm not sure if it was build, and what the status is right now. The engine for this vehicle LEONIDAS 5 (or6) was the topic of the master thesis from Olga O. Motsyk. (it can be found online).

For this year there are three launch oportunities at 't Harde: SLD 2016-1 19&20 May, SLD 2016-2 27&28 may and SLD 2016-3 22&23 sept. At least three launches are planned (besided the Egg challange SRP). The CSL v7s from the Active Control Team, DRAD with the deimos F engine from the Deimos liquid engine team. And one more I will write about later.

Each year a minor is organised by dare for bachelor students. The engine test stand, that was used to test the DHX-200 Aurora, the hybrid engine that propelled Stratos II+ was developed during a previous minor. Two years ago the minor was about an active controlled rocket, the Active Control Team (ACT) developed from this.
The purpose of this years minor is to design a test-bench for a 10kN cryogenic engine.

Along with this minor a new team has been formed the Cryogenic team. Their goal is to develop a 10kN LOx-LCH4 (methane) engine. This engine will be tested on test-bench build during the minor at DLR Trauen. The engine is developed with cooperation of (Italian) CIRA.

Than the latest change: a new Project AETHER.
This is a shared project between Solid Six, Capsule Team and Advanced Control Team. The purpose of the project is to test new technologies that will be used in Stratos III. The ACT is going to test their Stability Augmentation System at supersonic speeds during this launch. And the Capsule and Recovery team is developing a new recovery system that can operate at more conditions.
The rocket will fly be four meters tall (~157,5") is aimed to reach 6km altitude (half the altitude of Stratos I) and will be powered by the solid engine Leonidas 5 or 6 with 38kg (~85,4lb) of Kalinidex (>30kNs, 6,5kN O-class). It is planned to be launched November 2016 from the Netherlands, but I couldn't find a launch window during this period. That was all I had about DARE

Offline Rik ISS-fan

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #4 on: 01/25/2016 12:55 PM »
Here also a link to DARE's facebook page and the

Offline Rik ISS-fan

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #5 on: 03/21/2016 03:36 PM »
Dare has updated their website, with more info about AETHER

Offline Rik ISS-fan

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #6 on: 10/26/2017 02:19 PM »
DARE made a image with most of the rockets DARE has developed.
DARE Tweet; DARE Facebook; Instagram

I forgot to add this:
« Last Edit: 10/26/2017 02:21 PM by Rik ISS-fan »

Offline catdlr

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #7 on: 12/03/2017 07:41 PM »
DARE | DHX-400 'Nimbus' Hybrid Rocket Test 9


Delft Aerospace Rocket Engineering
Published on Dec 3, 2017


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 hypothesized 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 was here harmed, however, one pumpkin was never seen again.

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

Tony De La Rosa

Offline Rik ISS-fan

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #8 on: 12/03/2017 10:31 PM »
The DARE STRATOS III team also saw pressure oscilation during the 8th Nimbus 400 (kNs) engine test. The video is on youtube.
The STRATOS team also went to Germany to visit WARR and sponsors MT Aerospace and Winkelmann.
Thanks to those two companies, GKN Fokker and Airbore; DARE can use a COPV N2O tank on Stratos III.
Tweet with test tank production.
« Last Edit: 12/03/2017 10:32 PM by Rik ISS-fan »

Offline Rik ISS-fan

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #9 on: 12/08/2017 07:37 PM »
Dare updated their website with the Stratos III Technical Overview.
Let's also add this facebook burst test video
« Last Edit: 12/08/2017 07:38 PM by Rik ISS-fan »

Offline catdlr

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #10 on: 12/13/2017 04:31 PM »
DARE | Cryogenic Engine Igniter Test

Delft Aerospace Rocket Engineering
Published on Dec 13, 2017

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!

https://www.youtube.com/watch?v=dMfXxhnp1_Q?t=001

Tony De La Rosa

Offline Rik ISS-fan

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #11 on: 02/23/2018 02:05 PM »
Some news on StratosIII:

Launch site will be at INTA Spain ; tweet
DARE article about the recovery system

video from DHX-400 Nimbus engine test 11, the full duration burn of this ~400kN.s N2O Sorbitol-Parafin-Aluminium hybrid engine.


edited to add: oerlikon Article
« Last Edit: 02/23/2018 02:10 PM by Rik ISS-fan »

Offline FutureSpaceTourist

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #12 on: 06/07/2018 12:45 PM »
Quote
This launch tower will be raised in only 40 days! Don't miss the rocket launch on 16th of July 🚀

https://twitter.com/DARE_TUDelft/status/1004700478012297217

Offline catdlr

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #13 on: 07/13/2018 08:33 PM »
Stratos III rocket ready to launch

Delft Aerospace Rocket Engineering
Published on Jul 13, 2018

The Stratos III launch campaign has started! Our first launch attempt is on July 18, 2018, at 9.35 PM CEST. The live stream will be available at http://dare.tudelft.nl/live-stream/ and on this channel!

https://www.youtube.com/watch?v=odO-sIocnlM?t=001



Tony De La Rosa

Offline Rik ISS-fan

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #14 on: 07/13/2018 11:39 PM »
I think a fitting motto for the Stratos III launch operation is:
'Students testing the path for the professionals!' 😀
The best of luck DARE.

Offline Rik ISS-fan

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #15 on: 07/15/2018 10:18 AM »
Tweet from DARE:
The first launch attempt of Stratos III has been rescheduled to the 20th of July at 20:00 CEST. The Flight Termination System, a crucial component of the rocket, is currently stuck at customs in the U.S. which forced us to postpone the launch.

Darn ITAR. Wasn't there a European alternative?
20:00 CEST = 18:00 UTC.
« Last Edit: 07/15/2018 10:22 AM by Rik ISS-fan »

Offline Rik ISS-fan

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #16 on: 07/18/2018 04:47 PM »
Delay #3 tweet:
The launch of #StratosIII has been rescheduled to Tuesday July 24 at 20:00 CEST, due to a significant delay in shipping the Flight Termination System, which is currently stuck at customs in the US. As safety has our highest priority, a rescheduling of the launch was inevitable.

 >:( :( :-X

Offline catdlr

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #17 on: 07/24/2018 04:13 PM »
live video.

Stratos III: Rocket Launch
Delft Aerospace Rocket Engineering
Started streaming 3 hours ago

We're launching the biggest rocket in the history of DARE - Stratos III. Our goal - break the European student altitude record! Don't miss the rocket lift-off at 9 PM CEST.

https://www.youtube.com/watch?v=VEcNf0Xqf_I?t=001

Tony De La Rosa

Offline Olaf

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #18 on: 07/24/2018 06:26 PM »
Launch has been cancelled for today.
Winds are not favourable.
« Last Edit: 07/24/2018 06:26 PM by Olaf »

Offline FutureSpaceTourist

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Re: Delft Aerospace Rocket Engineeing (DARE)
« Reply #19 on: 07/25/2018 06:08 AM »
Quote
☀ Good morning fellow rocket enthusiasts! Another day, another launch attempt. Let's hope the weather is in our favor today 🙏 #StratosIII

https://twitter.com/dare_tudelft/status/1021991003182559233

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