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--- course_planning:184_projects:f17_project_8 [2017/10/17 16:32] – dmcpadden
+++ course_planning:184_projects:f17_project_8 [2017/10/19 16:24] (current) – nathawk
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 ===== Project 8 - Artemis 13 =====
-{{artemis13.jpg}}
+{{183_notes:artemis13.jpg}}
 After the incident with Spurgeon Tanner's heart attack, you and the rest of the team of the Artemis 13 continue with your testing missions. Your pilot, Pete "Maverick" Mitchell, has been performing some upper atmosphere maneuvers while you and the crew have been testing the systems and equipment on board. The final test was a short "jump" to the moon and back. A jump occurs when a large energy flux accelerates the ship to 11 km/s in a short time frame. The inertial dampeners prevent the crew members from any adverse affects of rapid acceleration. The purpose of this system is for what JPL is labeling Fast Action Maneuvering (FAM).
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 You should provide a circuit diagram of your design that helps you explain to your crew that the current in the circuit is safe and that you are going to be able to supply the needed power to the systems when the time comes. As a check for yourself, you should make sure that the voltage in the circuit adds up to the correct amount as to not suffer any voltage shortages.
+=== Project 8B: Power Is Everything ===
+There have been enough disasters for the Artemis 13. Mission Control has decided to abort the mission and are now working on trying to get the crew home. Since they have quickly been draining their batteries, they have cut the power to the remainder of the ship, but to get back to Earth they MUST turn on the guidance computer system (GCS), Environmental Control Systems (ECS), Communications Relay (CR), the warm-up control for the primers for the parachutes (PP), and the Command Control Module (CCM), as well as two floodlights (FL) in the cockpit.
+Your team has been working in a simulator to figure out how to turn on each of the systems in various orders, but keeps running into problems. If the total current from the 230 V battery on board exceeds 0.35 A, the battery will die and the Artemis will lose power before it can return safely to Earth. Your flight expert has sent over the most recent steps he has tried and the data they collected for each step.
+  - Turn on only the CR, which seems to work properly and only draws 0.242 A from the battery.
+  - Then turn on the PP, which decreases the current from the battery. The CR seems to barely be functioning so you conclude that it is running at it's minimum power of 18.35 W.
+  - Next they turned everything off, and switched on only the PP and the two FL. Immediately the warning light goes off in the simulator because the current from the battery is way too high at 1.48 A and the flood lights have burnt out because the power in each of the bulbs was 132.3 W (exceeding their maximum power rating of 60 W).
+  - You decide to start over and turn everything off again. You turn on the CS, ECS, and CCM - which seems to be perfectly alright. The current from the battery is maintaining at a nice and safe 0.188 A. Since this combination works well, you grab the hand-dandy multimeter and find that the CS, ECS, and CCM have the same current but that the CS is using the most power (17.7 W) and the ECS is using the least (10.6 W).
+  - Just to try one more thing, they turn everything off and then turn on only the PP and the CS. You find that even though they have the same voltage the current going through these elements are different.
+Mission Controls wants to try to turn everything on at once as it is currently configured. They are running out of time and need to get something to the Artemis. Will the current configuration of these elements in a circuit allow the Artemis 13 to get home safely??