Rolls-Royce WR-21 Marine Gas Turbine from Canada
The Rolls-Royce WR-21 is an intercooled recuperated gas turbine optimized for high efficiency in naval vessels like destroyers. Classified under HTS 8406.10.90.00 as 'other' turbines for marine propulsion, it uses vapor (gas) expansion distinct from steam turbines. Its design for intermittent high-speed marine use fits this subheading.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Provide detailed performance specs including power output and efficiency ratings; check for dual-use restrictions under Wassenaar Arrangement; label clearly as marine propulsion to avoid reclassification