I have been trying to calculate the Center of Pressure of a model rocket with and without fins using open rocket. However, whenever I take away the fins the center of pressure seems way too low. I calculated the CP to be 9.22 inches by hand (by using the areas and distances of a 2D cross section), however open rocket has been telling me its 2.09 inches, which doesn't seem right. I'm brand new to this software so is there something I am doing wrong?
Thanks,
Chase
Thanks,
Chase