Written by Don DeLoach
Free Flight Sport
As seen in the December 2020 issue of Model Aviation.
Excessive spiral stability in a FF model occurs when the vertical stabilizer is too small. This is a sketch from Bill McCombs’ book Making Scale Model Airplanes Fly.
"HOW CAN YOU make a model fly by itself?" That’s the question I most often hear about Free Flight (FF) from non-FF fliers. Indeed, it does seem miraculous that we can get our models to fly at all, let alone fly for long periods.
Remember, though, that rubber-powered FF aircraft preceded…