This work done in UNISC by Kamikase AeroDesign Team at 2008, concerns about an important issue in aircraft design: the loads prediction. The aircraft, referred here, aims the competition SAE Brasil AeroDesign, where the maximum payload and the minimun weight are crucial for success. FAR statements and concepts that the team developed by himself were employed. The methodology focuses in a less conservative loads analysis as long the weight must be minimized. The results point to a method adequate for the desired goal, joining an acceptable accuracy level and a reduction in the load factors of the FAR rules.