Home work #2
solution
Equations, and sections, used from text (you should know the development of these):
Section 5.3.1, example 5.1 in particular, for Drag (=Thrust_required) .vs. Velocity plot.
Equation 5.22 for analytical computation of the Drag_minimum velocity. Notice from
this equation that this velocity is inversely proportional to sqrt(density), showing that the
velocity increases with altitude, for fixed weight and a given aircraft.
Section 5.6, example 5.7 in particular, for Power (=V*T) .vs. Velocity plot.
Equation 5.41 for analytical computation of the Power_minimum velocity. Notice from
this equation that this velocity also is inversely proportional to sqrt(density), showing that
the velocity increases with altitude, for fixed weight and a given aircraft.
=======================================================
Matlab code:
% P_comp
clear density
weight = 2950;
% weight in lbs
area = 174;
% wing area ft^2
span
=
35.8;
% wing span ft
O_eff =
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
This is the end of the preview.
Sign up
to
access the rest of the document.
 Spring '08
 Yousuff
 Mass, Aerodynamics, Velocity, velocity velocity velocity

Click to edit the document details