And here we see the advantage of mounting those rear motors so that propellers spin clear of the end of each boom. The carbon-fibre tube, as you may recall, I have included because unlike the wooden skis the uPVC laminates seen here are that bit more flexible... and when this thing flies I want it standing straight to look the world right in the eye.
Ed. Because that's what momma told him, when his drone was about knee-high.
