WELL, I have a slight problem that I hope you guys can help me with, i might have been procrastinating too long, but you may possibly be able to help me if anyone checks this post again. So the situation is that i have a science fair project due the 6th, and i dont know what units I should put the thrust in to. I pulled the plane with a fishing scale on the back, and I need to know what units of measure to put it in to, the scale was in pounds. Should i put the readings in to lb/ft sq.? or just simply pounds, i dont know how to do pounds per foot squared if that is in fact what i have to do , but if you can, please respond to this as soon as possible. thank you.