Hi Physics Community, I'm working on the design of an aileron less and tail engine small UAV (Wing span 800mm) but I got stuck in Stability and Control. I recall from a teacher that a V-tail design is good for those configurations. However, I cannot find references to calculate/estimate neither its overall size or surface control size and I'm not sure if it could be calculated with volume coefficient method. I'd greatly appreciate any help or guide about this topic. -Freddy.