Which of the following speed definitions applies to the Green Dot on the Embraer Regional Jet?

The Green Dot on the Embraer Regional Jet represents the ideal flap extension speed, which is crucial for understanding how the aircraft should be configured and operated during various phases of flight. This speed is determined based on optimal performance for extending flaps and achieving the best lift-to-drag ratio, ensuring a safe and efficient flight maneuver when transitioning to lower speeds, especially during approach and landing phases.

In this context, selecting the ideal flap extension speed helps pilots maintain control of the aircraft while optimizing lift and minimizing drag, leading to better handling characteristics and overall performance. It's specifically designed to aid pilots in making informed decisions about flap settings relative to the current airspeed, enhancing safety and effectiveness when preparing for landing or approach.

Other options, while related to flight dynamics, do not apply to the Green Dot. For instance, rotation speed during takeoff is critical but marked differently, and single engine climb speed refers to a specific operational scenario after an engine failure. Maximum landing speed, while an important speed for safety during landings, also does not align with the purpose of the Green Dot, which specifically relates to flap operations.