What entry establishes the speed range for the Medium Speed and Heading Track Vector that protrudes from each track?

• A. Heading Track Limits
• B. Speed Range Protocol
• C. Track Vector Limits
• D. Medium Speed Category Limits

Answer: (D)

The speed range for the Medium Speed category is defined by the Medium Speed Category Limits entry. In this system, track vectors representing speed are organized into categories with specific bounds, and this entry sets the minimum and maximum speed that the Medium Speed category can use. That directly determines the range shown by the Medium Speed Heading Track Vector protruding from each track, ensuring consistent interpretation across the tracks.

Other entries focus on different aspects: Heading Track Limits governs the directions of heading, not the speed bounds; Speed Range Protocol sounds like a procedural rule rather than a data entry; Track Vector Limits would constrain the vector itself rather than tying to a specific speed category's limits. The explicit designation of the Medium Speed Category Limits makes it the correct source for the speed range.