Experimental Aerodynamics validation of a Tiltrotor platform within Next Generation Tiltrotor Technology Demonstrator project
Bibliographic record
Abstract
This paper aims to present the evolution of a comprehensive and lean approach used to validate an aircraft design against given aerodynamics requirements. The architecture is a tiltrotor developed under Clean Sky 2 JU FRC (CS2 FRC) program by Leonardo Helicopters Division (LHD): Next Generation Civil Tiltrotor Technology Demonstrator (NGCTR-TD). Against previous tiltrotors, this configuration encompasses some key aerodynamics differences: a v-shaped tail, partially movable nacelle with fixed engine and an efficient wing with the ability to carry a significant fuel fraction. Undergoing significant modifications, a validation of the aerodynamics phenomena typical of a tiltrotor is necessary. At first, a deep explanation of the phenomena and their 3D interactions is given, then the corresponding experimental campaigns are explained in terms of the critical decisions toward a lean approach and finally the key results are presented together with a global review of the entire campaigns and the value of the validation against reliable experiments.
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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 | 0.001 | 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 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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".