-
#180
by
Prober
on 09 Sep, 2015 15:43
-
-
#181
by
Prober
on 17 Sep, 2015 14:19
-
Launch Update:
Nexø I launch attempt postponed to September 26th - 27th.
Even through the weather is getting better at Spaceport Nexø there will not be a launch this weekend. We have had a visit from good old Murphy. Some of the checkout tests needed before the rocket can be flight qualified has taken longer than expected.
This weekend we will perform the final tests and after that the engine section will be disassembled for LOX cleaning, reassembled and final checkout procedures performed. We aim for launch the weekend 26th -27th of September. The long term weather prognoses look promising!
-
#182
by
Prober
on 17 Sep, 2015 14:24
-
Progress report on the rocket: "Below you can see some images from the workshop this week. The team is working around the clock to get the first Nexø class rocket ready for flight. Hopefully we can present you with images of the rocket fully assembled in a few days!"
2nd pic.
Nosecone separation test. A parachute compartment identical to the flight version was fitted with a parachute dummy to test the gas generators used for nose cone separation. This weekend the same test will be performed in our vacuum chamber to make sure the gas generators perform as expected at low pressure.
-
#183
by
Prober
on 17 Sep, 2015 14:26
-
Greeting from space: This week we received an awesome greeting from our friend Andreas Mogensen onboard ISS.
For those that doesn't read danish it says: "Good luck to @Copsub in their attempt to reach space. Personal experience says it's worth the hard work."
-
#184
by
Prober
on 24 Sep, 2015 12:23
-
Nexø I mission is postponed
Unfortunately, we'll have to postpone the launch. The last week has revealed minor, but numerous, problems with the rocket's system. We're extremely close to being able to fly, but right now we have no other choice but to wait. Launching at sea means that the weather is a decisive parameter, not least due to water temperature. This is a very tough call, since the team has literally worked day and nights, nights and more nights. But safety first.
We will present more information, and not least a new timeframe for the mission, as soon as possible.
To you, loyal supporters: This is all possible because YOU believe it's possible. Without the support from around this planet, we'd be nowhere.
Please go to our Nexø I mission page for the full press release: copsub.com/nexo
-
#185
by
Prober
on 24 Sep, 2015 20:43
-
CS is great with the tease
New video to keep us interested.
-
#186
by
Prober
on 07 Nov, 2015 20:44
-
First new update in awhile
Status Nexø I Nov 2015
-
#187
by
Prober
on 17 Dec, 2015 14:30
-
New video
Published on Dec 10, 2015
Milling jet vanes in graphite and jet vane bearing houses in aluminum.
-
#188
by
Prober
on 31 Dec, 2015 12:43
-
Published on Dec 30, 2015
Decembers activities in Copenhagen Suborbitals.
-
#189
by
Mark McCombs
on 31 Dec, 2015 18:23
-
I agree with the poster on YouTube that there might be an embrittlement issue with the glass/resin insulation ring/gasket. I wonder if they can maintain a metal/metal seat (thus maintaining structural integrity) at the flange while still employing the insulator over most of the mating surface reducing the heat energy transfer from the engine compartment.
Also mentioned "icing" in the engine compartment. A small amount of GN2 (pad resource) might displace any water vapour present in that area to help prevent condensation and ice formation.
Then again, if the insulator works well, that might take care of the icing problem.
-
#190
by
Prober
on 11 Feb, 2016 13:44
-
CS released an update with a couple of videos
Copenhagen Suborbitals have begun pressure forming of standard sized tubes in 6 m length to use with the BPM-5 rocket engine. The BPM-5 was not designed to use standard sized piping. In hindsight this was a mistake, since welding these specialized tubes for the BPM-5 by our supplier is quite cumbersome and time consuming. We therefore decided to try hydro forming standard sized piping instead so it can be used for the BPM-5. We are using about 85 bars of water pressure to go from the standard size of 108 mm (outer tube) to 112,3 mm and 101,6 to a 104,5 mm (inner tube). So far it has been a great success. The hydro forming extended the size and the deformation hardened the tubing. The average size increased within 0,5 mm over 6 mm length.
Now the tubes have been cut to length and are ready to go to metal forming.
Also trying a video blog
The story of the tiny BPM-2 rocket engine.
-
#191
by
QuantumG
on 11 Feb, 2016 22:03
-
This is probably the first time I've seen hydroforming for rocket engine manufacture that didn't create cooling channels.
-
#192
by
Prober
on 12 Feb, 2016 02:10
-
This is probably the first time I've seen hydroforming for rocket engine manufacture that didn't create cooling channels.
and what are they doing with all those engines anyhow?
-
#193
by
QuantumG
on 12 Feb, 2016 02:17
-
and what are they doing with all those engines anyhow?
Well, I saw a lot of pipe, not a lot of engines. My guess is that they expect to burn through a lot of material making a few engines and burn through a number of engines testing them. That said, it's been a while since I heard what the plans are for this engine.
-
#194
by
Prober
on 12 Feb, 2016 02:21
-
and what are they doing with all those engines anyhow?
Well, I saw a lot of pipe, not a lot of engines. My guess is that they expect to burn through a lot of material making a few engines and burn through a number of engines testing them. That said, it's been a while since I heard what the plans are for this engine.
They talked about 15 engines from that pipe. Some of these guys must be "Makers", and just enjoy designing and building the things. Know they will do a launch, in the future.
-
#195
by
ethan829
on 13 Feb, 2016 13:33
-
and what are they doing with all those engines anyhow?
Lots of testing with different TEOS/ethanol mixtures, or at least that's the impression I got from the video blog.
-
#196
by
Morten C.
on 15 Feb, 2016 20:37
-
and what are they doing with all those engines anyhow?
Well, I saw a lot of pipe, not a lot of engines. My guess is that they expect to burn through a lot of material making a few engines and burn through a number of engines testing them. That said, it's been a while since I heard what the plans are for this engine.
They talked about 15 engines from that pipe. Some of these guys must be "Makers", and just enjoy designing and building the things. Know they will do a launch, in the future.
The Nexø 1 and 2 rocket will use the BPM 5 engine. As I remember the plan have always been to build a high number of BPM 5 engines, and test them. There have been a few production issues with the first 3 engines, that is taken care of with this new batch. This might also bring the build time down for an engine.
The DPR system have not been tested with the BPM 5 engine and then you have all the TEOS/ethanol testing.
Reards
-
#197
by
catdlr
on 12 Jun, 2016 22:24
-
Parachute System
Copenhagen Suborbital
-
#198
by
catdlr
on 13 Jun, 2016 23:17
-
Second Cold Flow test on Nexø1 (in 2016)
Copenhagen Suborbitals
Published on Jun 13, 2016
This video is from the second cold flow test done on the 11 of June 2016 in front of the workshop. A second test was needed to test the repairs and small changes made based on what we discovered during the first test. Several valves and seals were changed, and most was fixed. A couple of minor things still need adjusting before launch.
The cold flow test is done with liquid nitrogen instead of the LOX. Nitrogen being inert is the perfect replacement and makes it save to troubleshoot while being close to the rocket.
Copenhagen Suborbitals is the world's only manned, amateur space program, all 100% crowdfunded and nonprofit. In the future, one of us will fly to space on a homebuilt rocket.
-
#199
by
russianhalo117
on 13 Jun, 2016 23:18
-
Second Cold Flow test on Nexø1 (in 2016)
Copenhagen Suborbitals
Published on Jun 13, 2016
This video is from the second cold flow test done on the 11 of June 2016 in front of the workshop. A second test was needed to test the repairs and small changes made based on what we discovered during the first test. Several valves and seals were changed, and most was fixed. A couple of minor things still need adjusting before launch.
The cold flow test is done with liquid nitrogen instead of the LOX. Nitrogen being inert is the perfect replacement and makes it save to troubleshoot while being close to the rocket.
Copenhagen Suborbitals is the world's only manned, amateur space program, all 100% crowdfunded and nonprofit. In the future, one of us will fly to space on a homebuilt rocket.
https://www.youtube.com/watch?v=GGTKSwOJiS4?t=1s
I give up. You beat me to it on posting again.
