8411.21.80.00 - Other

This HTS category, 8411.21.80.00, encompasses "Other" turbopropellers with a power output not exceeding 1,100 kW. This residual category is designed to capture turbopropellers that do not fit into more specific sub-classifications within this power range. It is crucial to examine the specific characteristics and intended use of the turbopropeller to determine if it qualifies for this residual classification, especially when other more precise descriptions are not immediately applicable.

Distinguishing this category from its sibling, 8411.21.40.00 (Aircraft turbines), is fundamental. While both fall under turbopropellers of a power not exceeding 1,100 kW, the sibling specifically addresses the turbines themselves that power aircraft. This category, 8411.21.80.00, is for the propeller component when it is not classified as part of an aircraft turbine or when it is a distinct turbopropeller unit not specifically enumerated elsewhere. The key distinction lies in whether the item is the complete engine assembly (turbine) or the propeller driven by that turbine.

As this is a leaf node within the HTS classification system, there are no further subcategories to introduce. Therefore, accurate classification into 8411.21.80.00 relies on a thorough understanding of the definition of turbopropellers and their power limitations, ensuring that the item in question does not meet the criteria for any other HTS subheading. This includes verifying that the power output is indeed at or below 1,100 kW and that the item is a turbopropeller unit that is not otherwise specifically classified.