Original blog in danish by Mads Stenfatt.
A couple of days ago, our chairman very poetically stated:
Thus the seed for the revived work within the space capsule study group has been planted.
As described previously, we are preparing a test investigating the capsule touchdown angle resulting in the softest landing possible.
SCTA01-1 (Scaled Capsule Test Article 01-1)
This obviously demands a scale model of a space capsule in order to test this. We want the scale model to be as large as possible, but this being a preliminary study, it must be cheap as well. To accomplish this, we came up with using a sewer pipe, to which we can add an end cap with the correct shape, and the stabilising fins.
Simple, easy, cheap.
And then again not.
As it turned out, the pipe was a bit too thickwalled for the scale we aimed at. Now what? To remedy this we have come up with a fabulous solution, which again confirms that the main part of our project is more about the infrastructure surrounding the rocket launch, than it is about the rocket itself.
Machine for hollowing out a space capsule.
Below a short picture series showing what it entails to adjust the mass of SCTA01 to fit the chosen scale size.
First off we need to cut the pipe to the correct length.
So now everything was ready for operation « hollow out a space capsule », and this is how it looked when we started the operation on the scale model:
And now the time has come to start fabricating an end cap and a number of stabiliser fins in several shapes and sizes. We are also working on obtaining an agreement with a public swimming pool, to gain access to a facility where we can perform the planned droptests. Expect lots of data and pictures from the droptests.
It would be really swell to be able to have a mini-Randy aboard the scaled test vehicle. Consider this a shout out to anyone having a test dummy, heigth approx 46 cm (18 inches), we’d like to borrow it for the test 🙂
We are working on many different subprojects concurrently. Below is shown our fabrication of more BPM-2 engines, needed for our tests with the TEOS (TetraEthyl OrthoSilicate) fuel additive.
In addition, our « never ending project » of finding the best way to measure LOX (Liquid OXygen) level in our tanks, is still ongoing. Most recently, Emil has developed a capacitive instrument which he is seen testing on the below picture.
And that concludes the bulletin from the CS workshop …