Final answer:
The range of spoiler deflection when the control wheel is turned can vary by aircraft and is dictated by the flight control system's design; the exact value should be found in the aircraft's flight manual or POH.
Step-by-step explanation:
When the control wheel is turned in an aircraft, the spoilers will move up or down to assist with the roll of the aircraft. The exact value of the deflection from the speedbrake setting can vary depending on the specific aircraft design and its flight control system. In general, spoilers can deploy to a certain degree to supplement the ailerons during turns or when roll control is needed, and this is typically limited to ensure aerodynamic efficiency and to prevent excessive stress on the airframe.
Without specific aircraft data, it is impossible to provide an exact number, as the maximum value of spoiler deflection is determined by the aircraft manufacturer and is outlined in the aircraft's operating manual. This detail should be referenced in the plane's flight manual or pilot operating handbook (POH) for precise operation parameters.