Pilots generally land with one hand on the control yoke (or sidestick) and the other hand on the throttles (thrust levers). This is a critical safety protocol called "Standard Operating Procedure" (SOP). During the final approach and landing, the pilot must constantly adjust engine power to maintain the correct glide path and airspeed. Keeping a hand on the throttles ensures they can instantly add power for a "Go-Around" if an obstacle appears on the runway or if the landing becomes unstable. For pilots of aircraft with a central yoke (like Boeing), using two hands on the wheel would leave the throttles unattended during the most volatile phase of flight. In modern Airbus aircraft, the pilot uses a sidestick with one hand, naturally leaving the other free for power management. Using only one hand on the controls is sufficient for the "fine-tuning" required during a normal landing; two hands are typically only used for maneuvers requiring extreme physical force, such as a flight control failure.