This has happened to trikers too. The prop is nearly invisible. I believe it happened to the Flying Gringo once. What is amazing is the man in the above video should have clearly known the motor was running--- so don't take any person's actions...
Well it's almost summer here in the great Queensland of Australia. Flying opportunities have been reduced to a minimum unless you fancy getting out of bed at 430am. There is the odd day where mother nature relaxes and lets the birds...