The question is for a 30 year old model that didn't have any servo recommendations then and would be highly outdated now (it is only designed for one channel and I am converting into a four channel). I'm also asking for a plane I am designing. I guess I'm just kid of hosed till I go buy servos.

I am well aquatinted with the basics of how servo throw works, I'm just trying to get an idea of how much throw I will have so I can align that with the horns I have to custom make for the flaps.