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Driven by interfacing with the rocket and ESRA rules and regulations. Required for a safe and legal flight.
| No. | Requirement | Reference / Reason |
|---|---|---|
| 1 | The payload must conform to the volume and shape of the 3U cubesat standard. | TODO (DTEG reference) Points |
| 2 | The payload must have a mass of at least 4kg (8.8lb) | TODO (DTEG reference) |
| 3 | A maximum of 20% of the payload mass can be non-functional. | TODO (DTEG reference) |
| 4 | The payload must not influence the flight of the rocket in any way. (It should be "replaceable with ballast mass"). | TODO (DTEG / HeroX reference) |
| 5 | The payload must be able to launch in a window of X hours maximum. | Can't reduce pad time requirements of rocket. |
| 6 | TODO all the deployable rules | Stem from Derived Requirements no. 1 |
Objective Requirements
Driven by the primary mission of the payload. Not necessary for a safe/legal flight, but necessary for a nominal experiment.
| No. | Requirement | Reference / Reason |
|---|---|---|
| 1 | The payload must have an airbrake. | |
| 2 | The effectiveness of the airbrake must be evaluated and verified. |
Derived Requirements
Derived from high-level mission and objective requirements.
| No. | Requirement | Reference / Reason |
|---|---|---|
| 1 | The airbrake should integrate easily into a rocket. | Purpose of experiment is to use for a future flight on a rocket. |
| 2 | The airbrake resistance must be actively controlled. | Need active control for use as a control system on a rocket. |
| 3 | The airbrake must be electronically controlled. | Future rocket will be using electronic control. |
| 4 | The position of the airbrake must be measured. | |
| 5 | The impact of the airbrake on the payload body acceleration must be measured. | |
| 6 | Flight conditions must be measured, including:
| |
| 7 | The payload must be deployable. | Need to measure effectiveness of break, but cannot effect flight of rocket (including descent). |
| 8 | The payload should maximize descent velocity. | Higher velocity is a closer simulation of flight on a real rocket. |
| 9 | The payload should remain in a consistent orientation during descent, e.g. no "tumbling". |