HELI-LZ-ERR-001
emergency
life_safety
ai_generated
true
AI告诉旁观者从前方或侧面接近直升机,但正确做法是从后方或飞行员视野内的侧面接近;前方接近有旋翼撞击风险
AI tells bystanders to approach a helicopter from the front or sides, but the correct approach is from the rear or sides within the pilot's view; front approach risks rotor strike
ID: emergency/helicopter-landing-zone-safety
70%修复率
82%置信度
1证据数
2024-08-10首次发现
版本兼容性
| 版本 | 状态 | 引入 | 弃用 | 备注 |
|---|---|---|---|---|
| FAA Rotorcraft Flying Handbook (FAA-H-8083-21B) | active | — | — | — |
| HEMS (Helicopter Emergency Medical Services) standards | active | — | — | — |
根因分析
AI未考虑直升机旋翼几何结构:主旋翼桨叶在机头处下垂(循环控制所致),前方接近致命;后方或飞行员视野内的侧面接近是标准做法
English
AI fails to account for helicopter rotor geometry: main rotor blades dip at the front (due to cyclic control), making front approach deadly; rear or side approach within pilot's view is standard
官方文档
https://www.faa.gov/regulations_policies/handbooks_manuals/aviation/rotorcraft_flying_handbook解决方案
-
Approach from the rear or side within pilot's field of view (3-9 o'clock position relative to cockpit), maintain eye contact, and never walk uphill toward a helicopter on a slope
-
If landing zone is on a slope, always approach from the downhill side to avoid rotor strike; pilot will tilt rotors away from slope
无效尝试
常见但无效的做法:
-
Saying 'approach from the front to be seen by pilot'
95% 失败
Front approach puts bystander in main rotor tip path; pilot cannot see directly ahead due to cockpit design
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Advising 'crouch low and run under rotors'
90% 失败
Rotor blades can dip to 4-5 feet at front; crouching does not guarantee safety and increases risk of disorientation