RE: contrarotating props
never too young to try new things!! imagine if einstien's dad told him to for get science!! or bell's dad told him to forget electronics!!!
i do understand that dad prolly doesn't want to finance this but don't they have metal shop where you go to school? would make a great project and i bet it would get an "a" too!!
no metal shop? how about at the local community college? they usually have metal classes and you could take a course over the summer and build it there!
just a thought...
john