#### Answer

about 5 kg

#### Work Step by Step

Weight of plane
The weight of model plane is 11 pounds which U.S. length unit
We’re changing from a U.S weight unit to a metric weight unit. In the “U.S. to Metric Units” side of the table, you see that 1 pound = 0.45 kilogram. Two unit fractions can be written using that information.(1 pound)/(0.45 kilograms) Or(0.45 kg)/(1 pound).
Multiply by the unit fraction that allows you to divide out pound (that is, pound is in the denominator).
11 lb *(0.45 kg)/(1 pound). = 4.95 kg = about 5 kg