What is the maximum forward speed at touchdown after an engine failure?

• A. 40 KGS
• B. 45 KGS
• C. 50 KGS
• D. 55 KGS

Answer: (C)

The maximum forward speed at touchdown after an engine failure is 50 KGS. This figure is critical for ensuring a controlled landing in the event of a power loss. The value represents the optimum speed that the helicopter can maintain while transitioning from a normal flight profile to a controlled descent, providing the best chance for a safe touchdown without excessive forward momentum that could lead to loss of control.

In this situation, maintaining this specific speed helps to ensure minimal vertical speed and adequate airflow over the rotor blades while maximizing the ability to control the helicopter during the touchdown phases. The selected maximum forward speed aligns with the safety margins established in the NATOPS guidelines, which account for the helicopter's handling characteristics, environmental factors, and performance limitations during an engine-out scenario.

Understanding this concept is crucial for pilots, as it affects landing strategy, approach angles, and control inputs during an emergency situation, thus reinforcing the importance of adherence to these operational limits for safety.