Investigation of Aircrew Noise Exposure Onboard the NRC Dassault Falcon Aircraft Through Flight Testing
Bibliographic record
Abstract
The NRC Dassault Falcon 20 is a small business jet operated by the NRC Flight Research Laboratory as a customizable research and experimental facility. As such, the NRC Falcon flies in a variety of cabin configurations and flight conditions including parabolas for microgravity. In-flight cabin noise measurements were performed on the NRC Falcon throughout a number of representative flight conditions. The data was analyzed in 1/3rd octave bands in accordance with ISO 5129 and evaluated in accordance with the Canadian Aviation Occupational Health and Safety Regulations. It was determined that all aircrew equipped with properly fitted hearing protection will not be overexposed to noise while onboard the NRC Falcon. The most severe noise exposure was experienced at the rear of the cabin near the engines during level flight while accelerating to 300 KIAS. While not equipped with properly fitted hearing protection, an occupant will reach the maximum allowed noise dose in a cumulated 9 minutes and 36 seconds under these conditions.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 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) | 0.002 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".