So the "main attraction" for my business trip to the Arctic Circle were the planned launches of the sounding rockets TEXUS 50 and 51. TEXUS 50 was successfully launched on april 12, 2013, but TEXUS 51 unfortunately had to be postponed. So there was only a TEXUS 50 sponge roulade ;-)
Initially I had planned to bake a single roulade, but it soon became clear that this would grotesquely distort the proportions - after all, the rocket, a VSB-30, about 12 meters long with a diameter of less than half a meter!
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Image: Rainer Kirchhartz, DLR
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My solution to bake four biscuit roulades and arrange them side by side came already closer to the original, but still was not really to scale. Anyway, all the project participants were able have some of it and 8 sponge roulades instead of 4 would have been just a little extreme... ;-)
The payload was painted in pretty white lettering with a golden 50.
The next picture shows the respective first and second stage for TEXUS 50 and 51. Note the differently colored fins!
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| Foto: Klaus Lohn, DLR |
Here, the two stages already wear their "war paint" - which I didn't manage to copy on my cake due to time restrictions ;-)
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| Foto: Nadine Perera, DLR |
That's how it looks when the two stages are already in the launcher and the payload is lifted on top of them. As with my cake, it is not easy to get the original rocket in one picture in full length!
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| Foto: Klaus Lohn, DLR |
The fact that the payload (the red part) is thinner than the stages (the two orange parts with the fins), I solved, as I think, very practically by rolling up one roulade from the long side of the baking tray, resulting in a long, narrow roll, by rolling up two sponge roulades from the short side of the tray, which resulted in two shorter, thicker roulades.
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| Image: Rainer Kirchhartz, DLR |
Just as with the real rocket, I needed an engine adapter which connects the two parts, which I made by rolling up a part of the fourth roulade diagonally. The other part of the fourth roulade, I rolled and cut diagonally to form the top. The fins, the nozzle and tip are molded from marzipan.
Zuerst die Finnen, Düse und Spitze aus Marzipan herstellen, damit diese über Nacht trocknen können.
Bei
diesen kleinen Teilen funktionierte die Weinflasche als Wellholz noch
ganz gut, für die große Fläche später hat eine (verschlossene) Bierdose
noch besser funktioniert. Die Finnen aus dünn ausgerollten Marzipan
ausschneiden, einen dünnen Streifen als Finnschuhe um die untere Kante
biegen, über Nacht trocknen lassen. Die Düse und die Spitze habe ich
erst am nächsten Tag geformt, die wurden auch noch einigermaßen
formstabil!