> For the complete documentation index, see [llms.txt](https://rocketry.gitbook.io/public/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://rocketry.gitbook.io/public/previous-projects/pinkbeary/airframe-diameter.md).

# Airframe Diameter

| Item                           | Unit Cost | Quantity | Total Cost |
| ------------------------------ | --------- | -------- | ---------- |
| 5.5" 4:1 Ogive Nosecone        | $37.95    | 1        | $37.95     |
| 5.5" x 48" Blue Tube           | $56.95    | 3        | $170.85    |
| 5.5" x 48" Full Length Coupler | $55.95    | 2        | $111.90    |
| 75mm x 34" Motor Mount Tube    | $16       | 1        | $16        |
| 54mm x 34" Motor Mount Tube    | $9.78     | 1        | $9.78      |
| Aero Pack 75mm Motor Retainer  | $56.67    | 1        | $56.67     |
| Aero Pack 54mm Motor Retainer  | $34.44    | 1        | $34.44     |
| J315R Motor                    | $84.99    | 1        | $84.99     |
| K1000T Motor                   | $157.99   | 1        | $157.99    |

The total cost for a 5.5 inch diameter rocket is $680.57.

## 6 Inch Diameter

| Item                          | Unit Cost | Quantity | Total Cost |
| ----------------------------- | --------- | -------- | ---------- |
| 6" 5:1 Ogive Nosecone         | $94.95    | 1        | $94.95     |
| 6" x 48" Blue Tube            | $66.96    | 3        | $200.88    |
| 6" x 48" Full Length Coupler  | $66.95    | 2        | $133.90    |
| 75mm x 34" Motor Mount Tube   | $16       | 1        | $16        |
| Aero Pack 75mm Motor Retainer | $56.67    | 2        | $113.34    |
| K535W Motor                   | $149.99   | 1        | $149.99    |
| K1000T Motor                  | $157.99   | 1        | $157.99    |

The total cost for a 6 inch diameter rocket is $867.05.

## Conclusion

We decided that a 5.5 inch diameter rocket would be most beneficial. While this option is not the least expensive, it does allow for future growth. Although a 5.5 inch diameter rocket reaches a lower apogee than a 6 inch rocket and can carry less payload, we decided it is more beneficial for us as a club to understand the process of building and launching a dual stage rocket than it is to overdo our first attempt. A 5.5 inch stage separation rocket is not too risky, but will also allow us to use larger motors and reach higher altitudes in future launches. This rocket will help us gain experience in designing, manufacturing, and launching a dual stage rocket. This will be beneficial overall for the club and our long term goal of achieving a space shot.

See these two documents for our original data and cost comparisons, plus sources and links to purchase the parts.

{% embed url="<https://docs.google.com/document/d/1VKeRP2-5GShqBxyASjPzUcPbEIurRWSnqRpGoGQchL8/edit>" %}
Cost Comparison
{% endembed %}

{% embed url="<https://docs.google.com/spreadsheets/d/1EWFsNJL6sSw1E_PpVLFtx3_OO1-quiyKuyL3FM90DyU/edit#gid=1795980575>" %}
Cost Comparison Spreadsheet
{% endembed %}


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://rocketry.gitbook.io/public/previous-projects/pinkbeary/airframe-diameter.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.