AI tells bystanders to approach a helicopter from the front or sides, but the correct approach is from the rear or sides (within pilot's view) depending on terrain
ID: emergency/helicopter-approach-front-sides
Root Cause
The AI incorrectly states that approaching from the front is safe, but helicopter pilots have limited forward visibility due to the nose-down attitude and rotor disc; the safest approach is from the rear (within the pilot's peripheral view) or from the side at a 45-degree angle, while staying clear of the tail rotor.
generic中文
AI错误地声称从前方接近是安全的，但直升机飞行员因机头下沉姿态和旋翼盘而前方视野受限；最安全的接近方式是从后方（在飞行员周边视野内）或从侧面以45度角接近，同时避开尾桨。
Official Documentation
https://www.faa.gov/regulations_policies/handbooks_manuals/aviation/helicopter_flying_handbook/Workarounds
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90% success Approach from the rear (3-5 o'clock position) while maintaining eye contact with the pilot. If the pilot signals, approach at a 45-degree angle from the side. Never walk near the tail rotor, even if it appears stopped. Follow the 'sterile cockpit' rule: no loud noises near the helicopter.
Approach from the rear (3-5 o'clock position) while maintaining eye contact with the pilot. If the pilot signals, approach at a 45-degree angle from the side. Never walk near the tail rotor, even if it appears stopped. Follow the 'sterile cockpit' rule: no loud noises near the helicopter.
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70% success If you must approach from the front, wait for the pilot to signal you and stay low, but this is only recommended on flat terrain with clear visibility. In all cases, keep one hand on your head in case you need to duck.
If you must approach from the front, wait for the pilot to signal you and stay low, but this is only recommended on flat terrain with clear visibility. In all cases, keep one hand on your head in case you need to duck.
中文步骤
Approach from the rear (3-5 o'clock position) while maintaining eye contact with the pilot. If the pilot signals, approach at a 45-degree angle from the side. Never walk near the tail rotor, even if it appears stopped. Follow the 'sterile cockpit' rule: no loud noises near the helicopter.
If you must approach from the front, wait for the pilot to signal you and stay low, but this is only recommended on flat terrain with clear visibility. In all cases, keep one hand on your head in case you need to duck.
Dead Ends
Common approaches that don't work:
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95% fail
Telling people to duck under the rotor disc, but this is extremely dangerous as the main rotor can dip or the pilot may not see you; also tail rotor is invisible from the front.
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85% fail
Instructing bystanders to approach from directly behind the helicopter, which is safe only if the tail rotor is not a threat, but many helicopters have exposed tail rotors that can cause fatal injury.