The Spacecraft Propulsion Technical Committee is based around detailing and working on the design of the Reference Mission's spacecraft propulsion systems. It was also established to act as a technical advisory group for other teams working on the Artemis Project.
In working on a project such as this, and in doing it in an environment such as the one you are presently within, we need to remember that we are all working together on this project. We all want to get there quickly, safely, and efficiently. Everybody should know that each of these tasks listed below are there to help us reach our goals. If you feel that working as a group on your particular task will help the creative juices start flowing, then by all means let us know who and how many. Don't worry if you only want to work on one part of a subtopic; there is no need to tackle a mammoth task all at once. Keep in mind that even some raw figures and preliminary calculations are very useful for those doing analyses who may derive the rest of the data from the sundry subtopics. Give whatever data you have; don't hold on to it until you're all done with the study.
When you choose a topic, or subtopic, from the task list, please remember to do a couple of things before you get started, and while you are working on the task. Take some time to think about the problem, and how you might try to solve it. I don't expect you to have it all thought through by the end of the day, but when you think you have an idea, please take a moment to outline it. Each outline will be saved in an archive. As you begin to work on the task, I would also like to have each person send in progress reports every two months. It doesn't have to be anything long and detailed; just something to let us know how things are going. So, in the future, if you decide to change tasks, or leave all together, we will have an idea of how you were going to solve the problem; and what you might have accomplished along the way.
So far, nearly everything needs a volunteer to take a crack at the research, calculations, brainstorming, or writing. The slightest amount of help does wonders to a group project, and any help at all gets us one step closer to the Moon.
The task list will be divided up into two major areas: First is an area with tasks that are in need of immediate attention; Secondly, a section, or sections, that list more long-term tasks to be completed. These tasks will usually consist of follow-on to the immediates in the first section. In some cases, the immediates are nothing more than specific sub-sections to the more general tasks. If you, or your group wish to take on different sub-sections, please let us know so we can mark it.
Please remember that we are all working on this together. If you have
any questions about your topic, or need assistance on data or calculations, please
feel free to ask somebody else in the group.
The main propulsion system of the Reference Mission is the focus of the Propulsion Tech Committee. Issues such as the supply, cost, performance, mass of engine and fuels, types of engines used and for what purpose, and requirements of critical components all need to be detailed.
Under overall requirements, we need to characterize each system dependent upon the mission proposed. We also need to think about our options under what will work efficiently coupled with what will help keep our costs from sky-rocketing.
Please keep in mind that all the URLs listed as "Notes:" next to each section are preliminary studies of the design. Certain designs and vehicle requirements are there as references, e.g. the lunar transfer vehicle (LTV) URLs listed below. If you have any improvements that are complete changes, please make them known by the method described above.
Note: George P. Sutton's "Rocket Propulsion Elements"
is a good introduction to the science and engineering behind rocket-powered
spaceflight. Sections on chemical, solid, and ion engines are a
good start to the subject.
Immediate issues that need to be resolved:
Note: Please check these links for introductory fuel specs for the Ascent and Descent stages of the Reference Mission.