2 Mission M11 FirstVelocityCosmic M any resources are required to put a spacecraft into the Earth orbit. Lesson materials are attached to this PDF file. In order to get access to the materials, open the lesson in Adobe Acrobat Reader.
takeoff is divided into multiple stages when boosters are detached from the rest of the rocket at different heights as the spacecraft goes up.
Cosmic Velocity
Staging allows us to “push” the spacecraft to the desired height. Otherwise, shuttles would simply fall back onto the ground. In addition, this system saves precious fuel. 1
The successful completion of this mission also requires a huge number of calculations and coordinated work of de sign engineers. Shuttles are launched from special launch pads (Figure
And1).the
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First
Figure
However, before getting at the mission, make sure that the launch pad is assembled correctly. For this, use the as sembly scheme that you will find in the Materials archive folder attached to this lesson. The model launcher must be in the location marked on the map (Figure 3).
The American three-stage rocket Saturn V is a good example of a multistage rocket (Figure 2).
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EV3 base was also tasked with sending a man-rated shuttle to space. The LEGO robot was privileged to start it by pressing the Start button.
Figure 2
To launch the shuttle successfully, the robot must drive to the launch pad and smash the orange button in the bottom part of the construction (Figure
4). Figure 3 Figure 4
5 First Cosmic Velocity
Beforeillustrates.themission begins, equip the robot with a special extension that allows hitting the button with sufficient force (Figure 6).
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First of all, the robot must get to the launch pad. You can use the ultrasonic sensor to make EV3 successfully travel the whole path and stop in front of the object (Figure 7). Figure 6
Now let's analyze a possible variant of solving this problem.
Figure 5
As a result, the shuttle must be at the top of the track as Figure 5
First
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The last action that the EV3 must perform is to abruptly drop the extension thus pressing the button (Figure 10).
After this, the robot can turn 45 degrees and drive forward to stop before the launch button (Figure 8).
Cosmic Velocity
Next, the robot must be face-off to the launch pad (Figure 9).
Figure 7 Figure 8 Figure 9 Figure 10
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The task is completed if after the button is hit, the shuttle goes beyond the Earth orbit. Students can get points as follows: ■ 24 points if the shuttle is successfully launched. The mission is failed if the spacecraft does not manage to go to outer space.
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Figure 11
First Cosmic Velocity
Finally, let's look at several examples of boosters that helped mankind to go to outer space. The first type of boosters is called Centaur. It can be part of heavy and light carrier rockets. This booster was the first to use new types of fuel: liquid oxygen and hydrogen. Also, Centaur can help manage the whole rocket. Due to this, people can save on other units (Figure 11).
The second booster is called Agena. Initially, it was used for the needs of spy satellites, but later it was turned into a training unit for man-controlled docking. This unit can spend a long time in open space. It can also help adjust the satellites' orbits and deliver spacecraft back to Earth (Figure 12).
Figure 12
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