Author Topic: Copenhagen Suborbital - Pad Abort Test - Postponed till Sunday Aug 12  (Read 35125 times)

Offline Morten C.

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Space Capsule Parachute Trouble – and Here We Go Again
T minus 8 days – Things Done, Stuff to Do and Avoiding Panic

For the second time this year Copenhagen Suborbitals will take to the Baltic sea, where they will conduct a pad abort test with the capsule Tycho Deep Space named Beautiful Betty. The test will be conducted in the launch window August 10-12, if the weather will allow it.



TDS will be liftet by a LES engine with the thrust of 80 kN, and take the 500 kg, 200 cm diameter boilerplate capsule to an altitude of 1 km.

This test will examine the the state of some of the subsystems, that have been develop  to be used in a future 160 cm diameter capsule design, that eventually will see suborbital flight.



The major goal for this test is the parachutes system, that consists a drogue, normally used for drag racing, and 3 main cross type DIY parachutes, each with 40 sqm effective drag area.

Another system that is going to be tested is the uprighting system, that will ensure that the capsule will end up in a stable 1 position after splashdown.

Again the Copenhagen Suborbitals Support group will be streaming the event at:
http://www.livestream.com/csscph and
http://www.livestream.com/cssaarhus

More information about TDS can be found here:
http://copenhagensuborbitals.com/tychodeepspace.php

Big LES
http://copenhagensuborbitals.com/bigles.php

Launch campaign 2012
http://copenhagensuborbitals.com/campaign2012.php

Cross my fingers for this one.

Regards
Morten
« Last Edit: 08/10/2012 06:23 pm by Morten C. »

Offline Morten C.

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Re: Copenhagen Suborbital - Pad Abort Test - August 10-12
« Reply #1 on: 08/07/2012 04:12 pm »
DIY Space Capsule GO – T minus 4 Days

Looks like it going to be Saturday, August 11. I will imagine that the time is the same as last. Between 10:00 to 14:00 CET.

Yesterday LES passed hydrostatic pressure test, and hardware is send to Nexoe today.

Local news station have shown interest as well and sending a news helicopter, hope they do a better job than last year.

Regards
Morten

Offline Morten C.

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Re: Copenhagen Suborbital - Pad Abort Test - August 11
« Reply #2 on: 08/09/2012 08:17 pm »
Kristian von Bengtson give a run through at Wired to what to expect this coming Saturday

How the DIY Space Capsule Test Could Fail



Nice looking LES I think, looking forward to see it on top of TDS  :)

Regards
Morten

Offline Morten C.

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Launch postponed till Sunday Aug 12, because waves are expected to be 1-1.5 meters tomorrow. Weather looks good Sunday.

www.copenhagensuborbitals.com

Regards
Morten

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LES/TDS have been stacked today, and ready for tomorrow if the weather will allow it.

CS Gallery



Foto: Thomas Pedersen/CS

More pictures at ing.dk

Gallery 1
Gallery 2


Foto: Thomas Djursing/ing.dk

Livestream start Sunday 12. august 9 AM CET

Enjoy

Regards
Morten


Offline Morten C.

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Gallery got updated with new photos

These 2 I really like  :)


Photo: Thomas Pedersen/CS


Photo: Thomas Pedersen/CS

Article on Wired
Watch Homemade Space Capsule Launch Livestream This Weekend
Although the article stated it was because of the parachutes the launch was moved, and not because of the LES hydrostatic pressure test

Regards
Morten

Offline Morten C.

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MLP Sputnik have left Nexoe and is under way to the shooting range ES D 139

Follow her here:
marinetraffic or
aprs

Livestream with commentary expected to begin 9AM CEST, and not CET as i mistakenly have written before.

Looks like the there all ready is a livestream running now from the mission control ship still in port

More information at the Rocket shop blog at wired
LIVE from Copenhagen Suborbitals: Space Capsule LES Test
« Last Edit: 08/12/2012 05:02 am by Morten C. »

Offline Morten C.

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Mission control ship leaving Nexoe port

Offline Morten C.

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Livestream will come back when MHV 903 Hjortoe is back the in line of fire from the Wifi receiver  in Nexoe

Offline Morten C.

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And back  :D

Offline Morten C.

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Sputnik reported back to Flight, there is no waves and the stack is not moving when sailing.

All good news  :)

Offline Morten C.

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Flight is doing radio check to the involved vessels

All good

Offline Morten C.

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Livestream is back

Offline Morten C.

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Stream from sputnik

Offline Morten C.

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Blue RIP needed a radio and was ask to get to the side of mission control ship to get it

Offline Morten C.

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Range control started, trying to get hold of ship in the ES D 139 area, and ask them to leave the shooting range



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Blue RIB ask to keep distance to Hjortoe

Polish fishing vessel is in the area

Offline Morten C.

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Talking about how to place the ships

Rosenfelt east and Hjortoe west, safety distance 1500 meter to Sputnik

Offline Morten C.

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Sputnik is in launch position

PAX is beginning

Offline Morten C.

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Rosenfelt have a vessel they like to get out of the area

Offline Morten C.

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Flight said Red RIB in the water and they are running PAX 3

Offline spectre9

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Long range shots of the barge/platform whatever it's called being set up now.

Looks like a go  ;D

Good luck everybody.

Offline Morten C.

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Long range shots of the barge/platform whatever it's called being set up now.

Looks like a go  ;D

Good luck everybody.

Called MLP Sputnik

http://copenhagensuborbitals.com/sputnik.php

Think launch 45 min from now, but not sure as it look like all things are running fine  :)

Offline Morten C.

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News helicopter arrived


Offline Morten C.

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Listen the news here in TV... Rocket to space  ??? .... Media is hard, only hear what they want to hear  :-\
« Last Edit: 08/12/2012 06:24 am by Morten C. »

Offline spectre9

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Thanks Morten.

Still people milling around on Sputnik.

Chopper looks like it was too early to see any action.

Offline Morten C.

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Thanks Morten.

Still people milling around on Sputnik.

Chopper looks like it was too early to see any action.

You are welcome

Yes, trying to see if i can find a livestream of the Chopper somewhere

Offline Morten C.

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Flight: Arming the LES system, and said it looks like 30 min +

Offline Morten C.

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Flight ask for a few more updated from MLP Sputnik.

Now more ships are entering the area. Have to get rid of them first

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Camera activated in TDS

Offline Morten C.

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FIDO getting data

Anyone up for some snapshots when the launch is near?

Offline Morten C.

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Flight: all systems are running

Also sound like commentary is starting

Offline Morten C.

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Flight: 20 min to launch

Offline Morten C.

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Safety range is 1500 meter, but the RIB can go closer if they feel like it. Camera people are very happy  :D

Offline Morten C.

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Running some more PAX

Offline Morten C.

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Ships getting into position for launch

Offline Morten C.

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People getting off Sputnik
Air space closed

10 min

Offline Morten C.

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Anyone like to help to get some good screenshot of the launch?

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People leaving Sputnik

Offline Morten C.

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Now it is close  ;D

Offline Morten C.

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T - 1 min

Offline Morten C.

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Got nothing  >:(

Offline Morten C.

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Stable 2

Offline spectre9

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I has the audio off, screen was black and when I tabbed back to it Sputnik was empty.

Looks like the capsule had landed upside down.

Seems like it likes to land like that judging by what I've seen from earlier drop tests.

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Divers in the water

Offline Morten C.

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I has the audio off, screen was black and when I tabbed back to it Sputnik was empty.

Looks like the capsule had landed upside down.

Seems like it likes to land like that judging by what I've seen from earlier drop tests.

Here as well. have to wait to see what video CS got them self

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Just seen on the news... looks like it did not get high enough for the main parachutes to fully unfold

Offline spectre9

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Seems like a little deformation on one of those white panels.

Might have hit the water hard.


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Seems like a little deformation on one of those white panels.

Might have hit the water hard.



It sure did

Offline Morten C.

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LES engine

Offline Morten C.

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Only thing that was missing was the altitude, for the main parachuted to unfold fully

Shame

Offline spectre9

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Tower connection and nozzles lost but the main fuel tank for LES has been recovered  ;D

"Something had been blown to pieces" the commentary jsut translated.

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Inside TDS

Offline Morten C.

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Offline spectre9

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Commentary just added that the main combustion chamber and nitrous tank for LES seem to be intact.

Good news I think.

Well done Copenhagen Suborbitals  ;D

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Recovery of LES

Offline Morten C.

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Just found some other debris flight said

Offline Morten C.

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LES onboard

Offline Morten C.

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Flight want to perform a stable 1 trial on TDS

Offline Morten C.

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20 cm water inside TDS, GO for stable 1 test

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Stable 1 system does not react

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MLP Sputnik asking to return to Nexoe

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No water in TDS.

Good news

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« Last Edit: 08/12/2012 08:12 am by Morten C. »

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Hard hit for sure

Altitude is missing

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Looks like TDS recovery starting

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TDS turned around

Offline Morten C.

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TDS onboard

Offline Morten C.

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Opening the control panel

Offline spectre9

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Trying for launch replay clip right NOW!!

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Offline spectre9

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Looks like they just streamed the clip from that news site.

It looked really good except for the lack of height.

I wouldn't know if it's supposed to be upside down when LES separates.

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Looks like they just streamed the clip from that news site.

It looked really good except for the lack of height.

I wouldn't know if it's supposed to be upside down when LES separates.

Good chance that it is on the SD cards inside TDS  :)

Offline spectre9

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Tycho Deep Space looks really good considering the parachutes didn't really deploy much if at all.

Built tough  8)

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Kristian with a cigar

One of the panels on TDS was not used, so CS packed some cigars inside  :D

Offline Morten C.

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Tycho Deep Space looks really good considering the parachutes didn't really deploy much if at all.

Built tough  8)

8mm construction steel i believe
Can take a punch  :D

Offline Morten C.

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In an interview on the news, Pad leader Niels Foldager says that they are all in all happy with the test and it looks like they got a lot of data. The differences event that was supposed to happen did. All they missed was the altitude for the parachutes.
« Last Edit: 08/12/2012 09:11 am by Morten C. »

Offline Morten C.

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Pictures and video starting to come


Photo: Thomas Pedersen/CS

Photo: Thomas Pedersen/CS

Photo: Thomas Pedersen/CS

Photo: Thomas Pedersen/CS


Photo: Thomas Pedersen/CS


Photo: Thomas Pedersen/CS


Photo: Thomas Pedersen/CS

More photos in the gallery

Videos




Yesterdays stream is in the loop at Copenhagen Suborbitals Support Livestream on http://www.livestream.com/csscph

There have not been any blogs yet, but Niels Foldager did sum it up like this in a post at ing.dk (Google translate)

Quote
Tycho / LES has given us much benefit since this subproject started, both in terms of space capsule and LES 'construction, various drop tests and static tests.

Now we just returned from the mission and obviously can not comment on details yet. But anything we can say:

1. Operational on the lake went perfectly.

2. Preparation is extensive, but went well.

3. Up-link radio went well. We started at T-0 and all acts in flight occurred immediately command was sent.

4. The system ended up tumbling. It was not surprising, but unfortunately ate too much of our parachute altitude.

5. Despite this toddler managed vonB to start various events exactly perfect throughout. It was really well done. There should be 5 correct decisions within a few seconds. (For example. He may not start before the separation LES burn-out.) A sequencer would have created chaos. "Staffing" worked.

6. LES engine started perfectly and performed his work. (It was weakened by approximately 6% in performance, but fuel is prolonged accordingly.)

7. The separation was perfect.

8. Tractor engine started and ran as it should and pulled the rocket well away from the capsule.

9. LES launcher with tower came down in full bearing parachute.

10. Drogue screen came out well and was starting to make up the capsule.
(But had not much time as desired, since the flight so that the height was decreased strongly and the main screens to go out now)

11. The main screens were triggered correctly, but was not enough time.

12. The main screens were properly the cut (under water).

13. The capsule lay with the head downwards, as the course makes in between (see drop-tests). We tried to start the planned balloon-turn test, but the internal damage in the capsule had put the system out of operation.

14. Salvage operation went well.
We salvaged all the parts except for the firebox. Its 100m line was observed, but still perceived as consistent with the parachute. It was not (the parachute gave namely up, down in the water!), And since the line was pulled down by the stream.

The time for the parachutes were not enough of a couple of reasons: flying height was below the desired. Tractor engine came to work on the decline.

That all systems worked, just had to altitude have been a bit higher.

(Another time we will try at ebb :-)

Article at ing.dk (Google translate), about the future for CS

I'll post if I find more information

Enjoy

Regards
Morten



Offline IRobot

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Is it just me or are these guys neglecting the electronics and control part a bit? I guess their background is mechanics and chemistry and they want to stay focused on that, but is that enough?

Offline mrhuggy

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Nice work there Morten and the rest of the team.

Looking at the video the main problem the capsule didn't release on time as a result it rotated too much and ended up much lower and in the wrong postion. As a result the parachutes didn't have time to inflate.

Offline Morten C.

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Is it just me or are these guys neglecting the electronics and control part a bit? I guess their background is mechanics and chemistry and they want to stay focused on that, but is that enough?

They already work on active control. They have just not flown anything yet.

In the fall of 2011 they did some static test to find what material to use for jet vane rudders. They settle with copper vane, after first tried out graphite, that could not cope with the forces.

Photos: Thomas Pedersen/CS

Flemming Nyboe/CS have been working on the software to the guidance system that consists off an IMU from Analog Devices and a ARM7-microprocessor.

This is what going to be the SAPPHIRE rocket. The plan was the fly it this year, but it might be next year, because last weekend was the last launch window and CS have been working hard on the missions they already had. But who knows if they get the energy and a new window to do it this year.

There is a few videos on their site, that show a servo test, and static test with and without highspeed

http://copenhagensuborbitals.com/sapphire.php

There is more photos their gallery

Regards
Morten

Offline Morten C.

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Nice work there Morten and the rest of the team.

Looking at the video the main problem the capsule didn't release on time as a result it rotated too much and ended up much lower and in the wrong postion. As a result the parachutes didn't have time to inflate.


You give me way to much credits. Not a part of CS myself, but I am a member of the support group CSS, so I pay for a little part of the fun  :)

Well as i understand the comments on Arocket, the stack got unstable as the propellant burn it change the CG and move after the CP, and that leads to the loop. Sure other can explain it much better then me.

That is one of the reason that the Apollo LES have a ballast of depleted uranium to move the CG forward.

Been trying to look for information about the Apollo LES, but don't think there is much out there.

Not sure if they separated the LES before the loop it would have gain enough altitude. At that point there 1.5 sec or so left of the burn, that was needed to get the rest of the altitude.

Maybe if they separated just before it it reach the apogee, there would have been altitude enough to get the main parachutes fully unfolded. But that is guessing

Regards
Morten

Offline Morten C.

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Looking at the video the main problem the capsule didn't release on time as a result it rotated too much and ended up much lower and in the wrong postion. As a result the parachutes didn't have time to inflate.


From article on Wired

DIY Space Capsule Test Launch Ends With Crushing Splash

Quote
As their launch escape system tumbled out of control, Copenhagen  Suborbitals didn’t want to remotely trigger the explosive bolts and  separate rocket from capsule. That could have unleashed an  out-of-control rocket toward their observation ships. Instead von  Bengtson waited until the engines had almost stopped burning, then  triggered the separation and the capsule’s parachutes.

Offline savuporo

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4. The system ended up tumbling. It was not surprising, but unfortunately ate too much of our parachute altitude.
I am surprised, but probably out of ignorance. It's not supposed to be passively stable ?
Orion - the first and only manned not-too-deep-space craft

Offline Morten C.

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First thought from Kristian on Wired, and with new pictures

DIY Capsule & Launch Escape System Post Flight Evaluation

Sound like more data will be looked at this weekend

More pictures added to the CS gallery

Like this one showing TDS rebounds after splashdown




Offline Morten C.

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4. The system ended up tumbling. It was not surprising, but unfortunately ate too much of our parachute altitude.
I am surprised, but probably out of ignorance. It's not supposed to be passively stable ?


Not sure what you mean, but if you mean it could be inherited stable, than no.
It is a little counterintuitive, as one would guess that the weight of the capsule would keep the LES pointing up.

Have a look at The Pendulum Rocket Fallacy
http://en.wikipedia.org/wiki/Pendulum_rocket_fallacy or
http://web.archive.org/web/20091018232320/http://geocities.com/jim_bowery/pendrock.html

There is a reason to why rockets have the engine in the bottom and the mass on top.

Even passive stable rocket normally have fins and spin to even out the imperfection of the thrust

Regards
Morten


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