What occurs if a failure happens at or after V1 during take-off on a 737-800?

In the context of a take-off scenario involving a 737-800, V1 is a critical speed during the departure phase. If a failure occurs at or after V1, it is a point of no return, meaning the aircraft has reached a speed sufficient for take-off, and the crew must continue with the departure.

During this phase, the aircraft has gained enough momentum to safely lift off, and aborting the take-off would involve substantial risk due to the limited stopping distance available and the potential for loss of control on the runway. Therefore, the appropriate procedure is for the crew to manage any issues while airborne.

This involves handling the situation, whether it’s an engine failure or another malfunction, while the aircraft continues to climb. The flight crew is trained to follow specific emergency protocols when issues arise after V1, ensuring that safety remains the priority as they ascend to a manageable altitude where they can assess the issue and determine the next steps.

Returning to the departure airport or declaring an emergency landing may be among the options to consider afterward, but the immediate action taken post-V1 is to continue flying and handle the adversity in the air.