What is the long-range climb speed for the CRJ-550?

What is the long-range climb speed for the CRJ-550?

• A. 250 Knots or .70 Mach, Prohibited above Flight Level 320.
• B. 290 Knots or .74 Mach
• C. 320 Knots or .77 Mach
• D. 270 Knots or .68 Mach

Answer: (A)

Long-range climb speed is the most fuel-efficient speed at which to climb to cruise, balancing a reasonable climb rate with minimal drag. For the CRJ-550, the recommended long-range climb is 250 knots indicated airspeed or Mach .70 up to Flight Level 320, and that speed is not allowed above FL320. This combination keeps the airplane in its most efficient envelope during the climb, helping to conserve fuel while still making steady progress toward cruise altitude. Speeds higher than this would raise drag and fuel burn without a meaningful increase in climb efficiency, while a slower speed would waste time and still use fuel. The upper-altitude restriction simply reflects the published performance data: once you’re above FL320, the long-range climb setting isn’t the intended operating point.

Long-range climb speed is the most fuel-efficient speed at which to climb to cruise, balancing a reasonable climb rate with minimal drag. For the CRJ-550, the recommended long-range climb is 250 knots indicated airspeed or Mach .70 up to Flight Level 320, and that speed is not allowed above FL320. This combination keeps the airplane in its most efficient envelope during the climb, helping to conserve fuel while still making steady progress toward cruise altitude. Speeds higher than this would raise drag and fuel burn without a meaningful increase in climb efficiency, while a slower speed would waste time and still use fuel. The upper-altitude restriction simply reflects the published performance data: once you’re above FL320, the long-range climb setting isn’t the intended operating point.