I have been trying to find an article or something with formulas for determining the lift capability of rocket engines. In other words, how much will engine "x" lift in terms of weight? Any related information such as predicting velocity and rocket altitude would also be appreciated. I have only a very basic understanding of engine nomenclature but never really understood or learned all the details re impulse, thrust, newtons, etc. Anyone who can direct me to an easy to understand explanation of this info would also be very much appreciated. Yes, I have searched many of the educational sites but I just don't get it. Certainly I am the only person with this problem. I can only get better and feel more comfortable with rocketry if I know these things. Thanks!