Calculate Thrust Force of Aero Modeling

[vijayvelprakash]

thrust calculation...

am doing an analysis with the aero modelling as part of my project...
i need to calculate the thrust force of the aero...i have the propeller diameter and rpm...i need the air velocity that comes out from the propeller to calculate the thrust... but i don't know how to claculate the air velocity... anyone who has a solution please post ur solution quickly as it is really urgent!

 

[FredGarvin]

http://www.grc.nasa.gov/WWW/K-12/airplane/propth.html

Bernoulli is your friend for an idealized rotor disc.