I'm building a plane from scratch, and the question I have is on what engine to use. It will be electrically powered either way I go- prop or ducted fan. This is my first build, and I'm wondering if anyone can tell me which one produces more thrust per unit of power.

Thanks!

I'm not sure but you can call Kirk Massey at New Creations RC and get anything you need in the electrical end. They specialize in RC electrics.
The number is 936-856-4630
newcreations-rc.com

What is it you are building Silverback? (just curious cuz of the DF question)