What is the minimum IFR climb gradient calculated for a single-engine CAT B fixed-wing aircraft departing from RWY 29 at Grand Junction?

The minimum IFR climb gradient for a single-engine CAT B fixed-wing aircraft is crucial for ensuring safety during takeoff, particularly when navigating around obstacles and adhering to air traffic control procedures. For such aircraft, the standard minimum climb gradient is typically 200 feet per nautical mile. However, when accounting for safety margins, operational limitations, and possibly unique geographical or airspace considerations at specific airports like Grand Junction, the standard requirement can be adjusted.

In this case, the selected climb gradient of 220 feet per nautical mile reflects an additional safety factor that aligns with regulatory guidelines and operational practice that help to mitigate risks. This gradient ensures that the aircraft can effectively clear obstacles within the designated departure paths without compromising its flight safety during the critical phases of takeoff and climb.

Other option values may not fulfill the necessary safety margin or operational requirements dictated by the airport's specific departure procedure or regulatory standards. Hence, the choice of 220 feet per nautical mile reflects a balance between regulatory compliance and operational safety for a single-engine CAT B aircraft.