This is a S.E. 5A airplane model instruction manual, which introduces the features and characteristics of the model
This manual provides step-by-step instructions for building the Top Flite S.E. 5A, an R/C scale model of a World War I fighter plane. The document emphasizes that while the model is simpler than many comparable kits, it requires some previous modeling experience and careful attention to craftsmanship. It is designed for a 40-.60 engine with a 26 7-1/2 inch wing span.
The manual states that a scale of 2"=1' results in a wing span of 26 7-1/2", which provides an ideal span of a bit over 53".
The text indicates that the wing span is designed to be appropriate for a 40-.60 engine.
Yes, the model is stable enough to be flown successfully using single-channel R/C equipment that controls only the rudder.