Since Integration Week in Bremen are elapsed a couple of weeks by now but we haven´t forget you and want to give you an update – better late than never – on how things are going on! 😉
Although it was an exciting week in Bremen we came home with some additional work. During the vibration test our FFUs started moving within the RMU and the hatches were pushed outwards a couple of millimetres. Assuming that we could disturb the flight of rocket by extended hatches we were kindly asked to figure out some improvements.
So back in Stockholm our race against the time has started. The last weeks we modified some important components of the ejection system. But when we were starting to go for a second vibration test, we found out that there exist no adapter plate to combine our experiment with the vibration table we have in Stockholm. So we had to build our own one…
After some very stressful days we finally won the race – thanks to Simon and Rasmus for a great work!
During the second vibration test fortunately no more failures occurred! So we could carry out some final tests, checking on how our FFUs are performing in vacuum and at temperatures between -30 and +60 degrees. But even completely frozen they are still performing very well! 🙂
So since everything is working to our total satisfaction we are ready for the final bench test in Munich this week!
Last week the electronics team set out to do some testing on a very vital part of the experiment – the ignitors.
To ensure safety and success of the experiment, it is important that these components work as expected. The experiments truly put the ignitors to the test, especially since we overlooked the fact that the wire of the ignitors and sand paper did not work very well together. Several ignitors were destroyed, so the team is really lucky to have Alexander who came in on a Sunday to make new ones before the trip to Bremen.
Thank you Alex, you are our angel!
So after some weeks of silence (Yeah we know about that. Sorry, but rocket experiments have a tendency to steal a lot of time :p ) we would just like to give you an update of what is up for the coming weeks, and what has been going on for the previous weeks.
As you probably already know the design is done, and built. Look below for a sight that honestly is most welcome for the SCRAP team. 🙂 We also thought it might be fun for you to see a little comparison with the CADs, just to show you that indeed things turned out as planned.
But I think you’ve seen this before. So what else has been going on? Well, testing, testing and more testing. On Friday we did a spinning ejection test with great success. Earlier we also did a fun experiment. What happens if you put a fully loaded cartridge on a vibration table and shake it as much as the machines allow?
Well not much really…
True, there was some disappointment, but ultimately the fact that absolutely nothing happened during the test is actually the best result we could have gotten (Obviously Jan disagrees somewhat). Next week it’s down to Bremen to do the whole thing over again, and show them ESA folk that the SCRAP experiment is ready to fly!
the SCRAP experiment
Good morning everybody!
As we are posting, three members of the SCRAP team are packing their stuff to go to Tromsø, Norway, were in the next two days they will perform tests and simulation with the EISCAT radar.
We want to recall you that the EISCAT radar, located in a valley close to the city of Tromsø, is the radar that we will use to investigate the interaction between the copper microparticles that our FFUs will release in the upper atmosphere, and the plasma of the environment.
Updates from the test campaign will follow!
Stay tuned 😉
Just as the SCRAP experiment will eject two free flyers ESA’s Rosetta will release its Philae lander (well, kind of similar) today to attemp the first landing on a coment ever! The lander will be released at about 10 o’clock. At about 5 o’clock the ‘YES, I MADE IT’ signal from the Philae lander is expected. Follow live updates on http://www.esa.int/Our_Activities/Operations/Live_updates_Rosetta_mission_comet_landing
This week, the sister programme of REXUS is launching. BEXUS stands for Ballon Experiments for University Students, and they launch their ballons experiments from Esrange space center, the same place as we will launch our rocket from this spring.
The SCRAP team wish all our friends in the BEXUS teams good look with their experiments!
Read more about BEXUS at the REXUS/BEXUS webpage