What altitude should be selected to avoid Class B airspace on a flight from Northwest Airport to McKinney Airport?

To determine the appropriate altitude to avoid Class B airspace while flying from Northwest Airport to McKinney Airport, it is essential to consider the vertical limits of the Class B airspace in the area you will be traversing. Class B airspace typically extends from the surface up to a designated altitude, which can vary based on location.

By selecting an altitude of 2,500 feet MSL, you are ensuring that you remain safely beneath the lowest altitude of the Class B airspace. This altitude is usually just above the surrounding area while still providing adequate clearance below the Class B airspace ceiling.

Choosing any altitude lower than this, such as 2,000 feet, might still allow for potential conflicts with the Class B airspace, depending on how the airspace is structured. On the other hand, selecting an altitude of 3,000 feet MSL or higher could inadvertently lead you right into Class B airspace if the airspace extends up to that level.

Thus, 2,500 feet MSL is the ideal choice as it provides a safe buffer while complying with the regulatory requirements necessary to avoid entering Class B airspace.