The first prototype of LuRoCa is ready for a test drive with ignition controller. If any media (print press or TV) is interested to join the test, please feel free to contact us (team@seleneteam.com). Test will be probably done in Shanghai, Minhang District, Yindu Rd., nearby the subway station (Line 5) on a soccer field:
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Rocket car fitted with ignition controller and battery compartment
Igniter wiring
A video of the first test run you can find here
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Rocket engines in the back and nose cone
Stockpotato,
You could post a sketch of your design first. It is adequate for a discussion and calculations.
P.S. We need the nose cone. There will be some measuring instruments placed in it. If LuRoCa is launched as a surface to surface missile, the cone should hit the lunar surface like a penetrator. The cone also avoids that the rocket car stops immediately if it crashes in smaller obstacles (f. e. in a regolith hump).
Team Selene
www.seleneteam.com
Will I stand corrected?
I've ordered the stuff to show you. You will not need all those engines because in all the videos I've seen, and as I predicted, your rocket car cannot go more than 10 meters straight. Instead, it veers off, because you put your engines in the back, not the front. But I know we disagree on this. So I ordered the parts to build one and show you. Of course, if your LuRoCa does make it through all the engines in sequence without veering off to the side, or even some of them, then I will stand corrected. But I also want to say that I am becoming a fan of your team. It is nice to see someone "lighting things off" around here! Keep up the good work.
P.S. You don't need the nose cone on the moon because there are no aerodynamics (no air).