True or False: Flaps should be lowered and the before landing checklist performed only once established on downwind.

Lowering flaps and performing the before landing checklist only once established on downwind is considered the appropriate procedure in many flight training protocols. This is because establishing the aircraft's configuration and completing necessary checklists at this point in the traffic pattern helps ensure that pilots are fully prepared for landing.

By waiting until on downwind to lower flaps and complete the checklist, pilots can maintain better situational awareness and manage their workload effectively during critical phases of flight. It ensures that all checks are performed when the aircraft is in a stable flight condition and allows for a more organized approach to landing preparations. The sequence helps in avoiding distractions or unnecessary actions during other phases of the landing approach, permitting the pilot to focus on essential tasks such as maintaining proper airspeed and spacing from other aircraft.

In contrast, different procedures may apply based on specific aircraft types or unique operating conditions. However, the general flight training standard fosters the practice of waiting until established on downwind to manage the landing configuration effectively.