What is the one-engine holding speed above 15,000 feet up to Flight Level 310?

What is the one-engine holding speed above 15,000 feet up to Flight Level 310?

• A. Two Engines - 225 Knots
• B. One Engine - 220 Knots
• C. Three Engines - 235 Knots
• D. Four Engines - 230 Knots

Answer: (B)

Holding speeds are set to keep the airplane controllable and avoid a stall while holding, and the value you use depends on how many engines are operating. When one engine is inoperative, the published minimum holding speed is used to ensure you still have enough lift and enough control authority to maneuver in the hold with the remaining thrust. In the 15,000 feet up to Flight Level 310 band for the CRJ-550, that OEI holding speed is 220 knots indicated. This keeps you above the stall margin and provides a safe turn performance with limited thrust, which is why it’s higher than a standard all-engine hold but specific to this altitude range. The other numbers correspond to holding speeds for different engine configurations or aircraft, so they aren’t applicable here.

Holding speeds are set to keep the airplane controllable and avoid a stall while holding, and the value you use depends on how many engines are operating. When one engine is inoperative, the published minimum holding speed is used to ensure you still have enough lift and enough control authority to maneuver in the hold with the remaining thrust. In the 15,000 feet up to Flight Level 310 band for the CRJ-550, that OEI holding speed is 220 knots indicated. This keeps you above the stall margin and provides a safe turn performance with limited thrust, which is why it’s higher than a standard all-engine hold but specific to this altitude range. The other numbers correspond to holding speeds for different engine configurations or aircraft, so they aren’t applicable here.