# Model Rocket Fin Size Calculator

This is the online aeronautical calculator to know the fin area size of a rocket. The model rocket fin size calculator is a useful one to determine the size of the fin of a rocket, which controls rocket's stability and to maintain its orientation and intended flight path. Calculating the fin area on a rocket, depends upon the body tube diameter in inches and Body tube length in inches. The rocket fin size should be as small as feasible for tropospheric launch.

This is the online aeronautical calculator to know the fin area size of a rocket. The model rocket fin size calculator is a useful one to determine the size of the fin of a rocket, which controls rocket's stability and to maintain its orientation and intended flight path. Calculating the fin area on a rocket, depends upon the body tube diameter in inches and Body tube length in inches. The rocket fin size should be as small as feasible for tropospheric launch.

Code to add this calci to your website  #### Formula:

Fin Area ( fA ) = ( ( d + 0.5 ) × L ) / 6 Where, d = Body Tube Diameter (Inches) L = Body Tube Length (Inches)

### Example:

Calculate model rocket fin size if the body tube diameter is 25 inches and tube length is 35 inches?

#### Solution:

Fin Area ( fA ) = ( ( 25 + 0.5 ) × 35 ) / 6
= 148.75 Inches
Therefore the Model rocket fin size is 148.75 Inches