Recent content by amirshah

Thanks. At least, I have known the relationship between angle of attack and pitch angle. How's about angle of attack and flight path angle. In the equations of motion especially in flight performance, flight path angle directly affect the performance calculation.

Hello, What is flight path angle and how does it affect an airplane? What is the difference between flight path angle (glide angle or climb angle) and angle of attack? When the flight path angle is changed during flight, does the angle of attack also changed? I found that lift is always rely...

What's about MIT? I thought MIT was very good at Aerospace Enginneering

I would like to say thank you for your help. I really confused about [that the engine wouldn't have power-to-weight higher than 1 kW/kg, but apparently there exist ~5 kW engines with >2 kW/kg PtoW] Yes, I'm refer to eq. 9.12 in Roskam's "Airplane Aerodynamics and Performance". I have...

Thanks my friend for your opinion. Actually, I just want to show the results of calculation using spreadsheet based on roskam method, so my friends in this forum could analyze. Can you explain to me about this statement (a) climbing velocity (rate of climb) cannot be computed by the formula...

Hello my friends, At the moment, I'm doing an estimation and analysis of flight performance for UAV (unmanned aerial vehicle). During climbing flight analysis, I have a problem regarding calculation of rate of climb (vertical velocity), my calculation value of rate of climb seem weird, the...