What is the critical engine-out minimum control speed (Vmc) on a dry runway for the ERJ 170/175?

The critical engine-out minimum control speed (Vmc) is a vital performance parameter for twin-engine aircraft, including the ERJ 170/175. It represents the minimum speed at which the aircraft can maintain controlled flight while one engine is inoperative. For the ERJ 170/175, this speed on a dry runway is correctly identified as 104 KIAS.

Vmc is determined by several factors including the aircraft's design, weight, and configuration, as well as the effects of yawing moments and thrust from the operating engine. The aircraft must be able to counteract the yaw induced by the lack of thrust from the inoperative engine at this critical speed, ensuring a safe flight profile during a failure scenario.

Understanding the correct Vmc is essential for safe operations, particularly during takeoff and climb phases when an engine failure is most critical. It allows pilots to maintain control and avoid situations that may lead to uncontrolled yaw or roll, ensuring that they are aware of the minimum speed at which they can safely handle an engine failure situation.