What environmental factor does not contribute to the onset of LTE?

Low outside temperature does not contribute to the onset of Loss of Tail Rotor Effectiveness (LTE). When temperatures are low, the air density increases, which can actually enhance the rotor performance as the blades generate more lift and thrust. In contrast, factors like high gross weight, high density altitude, and high winds and turbulence create conditions where the effectiveness of the tail rotor can be compromised, leading to potential LTE scenarios.

High gross weight can increase the required power for hover, stressing the helicopter's performance limits and impacting tail rotor effectiveness. High density altitude decreases air density, leading to reduced performance and potential throttle management issues that further affect tail rotor control. High winds and turbulence can disrupt the airflow around the helicopter and the tail rotor, heightening the risk of LTE.