ow t' track a model rocket t' find out how high it flew. This video will show you how t' optically track a rocket's flight, matey, and how t' figure out from angular measurement t' peak altitude. It is a great activity for school students, as it gives them somethin' t' do while t' other students are flyin' their own model rockets. T' technical name for t' altitude trackin' device is called an inclinometer. Arrr! T' chart we use t' determine t' height from t' angular measurement is called t' altitude nomograph.