Which document is typically used to determine the maximum weight and CG limits for a specific aircraft?

Which document is typically used to determine the maximum weight and CG limits for a specific aircraft?

• A. Flight Manual
• B. Aircraft Specification or TCDS
• C. Maintenance Manual
• D. Airworthiness Directive

Answer: (B)

The official limits for weight and center of gravity come from the aircraft’s certification data, specifically the Aircraft Specification, also published as the Type Certificate Data Sheet. This document lists the approved maximums (like takeoff and landing weights) and the allowable CG range for that particular aircraft. While the Flight Manual may reference or restate these limits for pilot use, the TCDS is the authoritative source that defines them. The Maintenance Manual focuses on upkeep procedures, and an Airworthiness Directive is a regulatory notice about required actions for safety—neither establishes the weight and balance limits.

The official limits for weight and center of gravity come from the aircraft’s certification data, specifically the Aircraft Specification, also published as the Type Certificate Data Sheet. This document lists the approved maximums (like takeoff and landing weights) and the allowable CG range for that particular aircraft. While the Flight Manual may reference or restate these limits for pilot use, the TCDS is the authoritative source that defines them. The Maintenance Manual focuses on upkeep procedures, and an Airworthiness Directive is a regulatory notice about required actions for safety—neither establishes the weight and balance limits.