Discussions

I wanted to start gathering parts for my Zepher flying wing, so I grabbed my computer to do some motor calculations but I am not sure where to start, what Kv.  It seems to me there was a weight or size conversion when calculating motor size but my old links to that information are either lost or broken.  Any ideas or rules of thumb?  

Also; does anyone know of an updated version of electricalc that will work with the newer operating systems?