No, the "maximum endurance speed" and the "green dot speed" are not the same for Airbus aircraft.
The "green dot speed" is a term specific to Airbus aircraft and refers to the speed at which the aircraft achieves its best lift-to-drag ratio (L/D). It is indicated on the airspeed indicator by a green dot symbol. Flying at or near the green dot speed allows the aircraft to achieve the maximum range for a given amount of fuel, hence optimizing fuel efficiency. It is commonly used during the climb and descent phases of flight.
On the other hand, the "maximum endurance speed" is the airspeed at which an aircraft achieves the longest possible endurance, meaning it can remain airborne for the maximum amount of time. This speed is typically lower than the green dot speed and allows the aircraft to fly at its lowest fuel consumption rate. Maximum endurance speed is often used in scenarios where maximizing time aloft is the priority, such as in loitering or holding patterns.
While both speeds are related to optimizing efficiency and fuel consumption, they represent different concepts and have distinct values. The green dot speed is associated with the best L/D ratio, while the maximum endurance speed is focused on maximizing the aircraft's endurance or time aloft.