SAM 225 CALCULATOR Back to FlyNet top page

A Calculator for a rectangular wing platform to get the maximum engine size using the 225 rule.
ie:- 225 square inches of wing area per 0.1 cubic inch of two stroke engine capacity and 0.06 cubic inch of four stroke engine capacity.
For straight taper wings use the average wing chord measured at the mid point of the half wing.
This is a simple area calculator and does not take into account rounded wing tips ect.