Selection criteria for parachutes of student-built sounding rockets
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Various parachute-type decelerators can be considered in the design of a sounding rocket recovery system. During the development of various flagship missions of Delft Aerospace Rocket Engineering (DARE), the Parachute Research Group of DARE has developed several methods and criteria to select the right parachutes for a given mission. This paper presents and discusses the operational envelopes, advantages, and disadvantages of different parachute types. The parachutes described in the paper are variations of cross parachutes, disk-gap-bands, ringsails, conical ribbon parachutes, and hemisflo ribbon parachutes. Variants of these parachute types have previously been developed in-house and flown, allowing for acquaintance with their design, manufacturing and performance. Apart from the more traditional parachutes used for student-built sounding rockets, this paper will also cover the opportunities and challenges that are associated with the use of less conventional parachutes, such as ringsails, ringslots, and parafoils. Each parachute is described in detail after which all are compared to one another based on several sets of typical requirements. Factors that influence the parachute selection process are, for example, the parachute flight envelope, stability behaviour, and manufacturing complexity.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it