Ok guys I know the prop is on backwards it is no even tighten down just on there for the pic. Won't fit in the garage with the prop on because of the bikes but saw no reason to tell the boy to turn it around. He did not understand leading edge first or that he could have pulled the cord a bit to find out which way the engine turns. But was ok for the pic.
Dan, sorry if I offended you, I wasn't trying to be a smartass, but, like Chuck said above, it happen! Here's a true story:
A few years back a friend of mine built a very nice SeaRay amphibian. He had flown it quite some time when he decided do some engine mantainance. In the process he removed the prop and ... late at night, ... put it back on backwards!
The following day he tried to fly the airplane and it wouldn't reach takeoff speed. He called me highly fustrated and totally bewildered. The engine ran fine, turned up static RPM like it was supposed to, but wouldn't reach take off speed. He asured me he had not changed the pitch, it was exactly as before. He said it sounded different. I ask him if he was sure he didn't put the prop on backwards, after all, it WAS late at night. Now here's the funny part; He laughed at me and called me silly! He said " If it was backward, it would push backward, it pushes forward, but just doesn't seem to push enough!"
There comes atime when one realizes that argument is pointless, I told him just go look at the F#*&%! prop and assure the leading edge is in the direction of rotation. He called back later with an embarassed laugh and confessed, yeah, that was the problem.