Hello,
First post, sorry if this is a stupid question or has already been covered.

I'm interested in building the Preceptor N3 Pup as an ultralight, the Preceptor website specs that it is designed for a 35 HP engine for it but I think it might be weak. They do state that you can run a 45 HP engine which might work but might be too heavy to stay in the UL catagory. My main concern is that I live in Utah at around 4500 ft and in the summer DA can get up in the 9000 ft range and performance could suffer. Can anybody weigh in on if I could safely operate this UL here in Utah. Oh, by the way, I will not be doing any mountain flying. I live in Norther Utah near the West desert.

http://www.preceptorair.com/about_us.html