# 2.8 Landing Protection Function Model: lite-640t · Manual v1.0.2 Canonical: https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-8-landing-protection-function Source: https://drive.google.com/file/d/1yQTDKasKxbvfVdANOx9bmlPYml-2dkCE/view Updated: 2026-10-17 EVO Lite 640T Enterprise · SE V2 controller When the landing protection function is enabled, the aircraft will check whether the ground conditions are suitable for landing before descending. For more details, please refer to “6.5.2 OA Settings” in Chapter 6. [PDF page 30, block 8](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-8-landing-protection-function#p30-b8) During the auto return home process, when the aircraft reaches above the home point, if the landing protection function is enabled, the aircraft will execute the following strategies: [PDF page 30, block 9](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-8-landing-protection-function#p30-b9) 1. If the landing protection function detects that the ground is suitable for landing, the aircraft will descend directly. [PDF page 30, block 10](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-8-landing-protection-function#p30-b10) 2. If the landing protection function detects that the ground is not suitable for landing (such as uneven terrain or water below), the aircraft will hover, prompt in the flight application for user action, and only start descending when triggering severe low battery landing, which cannot be canceled by the user. [PDF page 30, block 11](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-8-landing-protection-function#p30-b11) 3. If the landing protection function cannot detect the ground conditions, the aircraft will descend to 1.2 meters above the ground and directly enter the assisted landing process. [PDF page 30, block 12](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-8-landing-protection-function#p30-b12) ## Remarks [PDF page 30, block 13](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-8-landing-protection-function#p30-b13) Assisted Landing: During the landing process, when the aircraft reaches a height of 1.2 meters above the ground, it will automatically descend slowly without the need for the user to pull down the throttle stick. [PDF page 30, block 14](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-8-landing-protection-function#p30-b14) Before entering assisted landing, users should ensure that the landing point is suitable for the aircraft to land. [PDF page 30, block 15](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-8-landing-protection-function#p30-b15) ## Landing Protection Function [PDF page 30, block 16](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-8-landing-protection-function#p30-b16) When the landing protection function is enabled, the aircraft will assess whether the ground conditions are suitable for landing before landing. For more information, see “6.5.2 OA Settings” in Chapter 6. [PDF page 30, block 17](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-8-landing-protection-function#p30-b17) During the auto-return process, when the aircraft reaches above the home point and the landing protection function is enabled, the aircraft will execute the following strategies: [PDF page 30, block 18](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-8-landing-protection-function#p30-b18) 1. If the landing protection function detects that the ground is suitable for landing, the aircraft will land directly. [PDF page 31, block 2](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-8-landing-protection-function#p31-b2) 2. If the landing protection function detects that the ground is not suitable for landing (e.g., uneven ground or water below), the aircraft will keep hovering, send a prompt in the flight application, and wait for the user to take action. In this case, the aircraft will start descending only when a critically low battery landing is triggered, and the user cannot cancel this process. [PDF page 31, block 3](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-8-landing-protection-function#p31-b3) 3. If the landing protection function cannot detect ground conditions, the aircraft will descend to an altitude of 1.2 meter above the ground and enter the assisted landing process. [PDF page 31, block 4](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-8-landing-protection-function#p31-b4) ## Note [PDF page 31, block 5](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-8-landing-protection-function#p31-b5) Assisted landing: During the landing process, when the aircraft reaches an altitude of 1.2 meters above the ground, it will automatically descend slowly and the user does not need to pull the throttle stick. [PDF page 31, block 6](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-8-landing-protection-function#p31-b6) Before the aircraft enters the assisted landing process, make sure that the landing point is suitable for the aircraft to land. [PDF page 31, block 7](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-8-landing-protection-function#p31-b7)