Propellor Thrust Calculations for P-51 Mustang Simulation

[Cyrus]

Thanks alor Mr Reid. My calculations are done. I plotted the efficiency and set it with the advance ratio in my program and now thrust is fine.
This doesn't fit in with the name anymore, but could anyone help me with the roll, pitch and yaw physics now?
And how do the leaving the undercarriage and flaps affect drag? I need this for my equation as well.

I'm currently making a flight dynamics model for two aircraft. In a nutshell, you're way over your head.