At what speed do you call for speed mode after takeoff?

The call for speed mode after takeoff typically occurs at V2+10 to 15 knots. This range provides a safety buffer above the minimum operational speed (V2) required for takeoff, accounting for various performance factors such as aircraft weight, environmental conditions, and operational margins. V2 is the minimum speed at which the aircraft can safely climb with one engine inoperative, so transitioning to speed mode slightly above this ensures that the aircraft is well within a safe operating envelope, allowing for effective control and performance during the critical phase of initial climb. This practice helps pilots manage the aircraft's speed while ensuring they have adequate handling and safety margins as they gain altitude.