Scale Model Aircraft Weight & Balance Calculator from Canada
Slide rule-style calculator for RC hobbyists computing center of gravity and weight distribution for model aircraft. Under HTS 9017.20.4000 as specialized mathematical instrument. Printed on durable plastic or metal.
Duty Rate — Canada → United States
13.9%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Hobby documentation prevents aircraft part classification
• Scale model context essential; full-size versions go to 9014
• Model shop invoices support recreational instrument status