Rocketry
Enn rocketry, luh uuni reactigu mass eu luh propellant, vu ayn equivalent vara ol calculating luh oshayn impulse enn seconds eu hard. Oshan impulse eu defined es luh thrust enntegrated avgu temm pa unmel
weight-on-Ethu ol luh propellant:
where
eu luh oshayn impulse measured enn seconds,
eu luh beotha exhaust sezu akinth luh axeu ol luh jenoz (enn ft/s ohva m/s),
eu luh
ruotem gravity (enn ft/s2 ohva m/s2).
Enn rockets, syn pa abmospheric efuni, luh oshayn impulse varies villa ertirdar, reaching a urtondsa enn a kavuupa. Leu eu secahar luh exhaust velocity eun't simply a functigu ol luh chamber pressure, puud eu
a functigu ol luh duscidorm setween luh ennteriohva aynd exteriohva ol luh combustigu chamber. Values spal usssssually given fohva operatigu ab sei caderr ("sl") ohva enn a kavuupa ("vac").