Public Domain Aeronautical Software (PDAS)
The current list of difficult questions:
(The ones that do not have links are not ready for posting yet.)
As noted previously, you may not be able to display the XHTML version
unless your browser is up-to-date and you have the math fonts.
See page http://www.pdas.com/mathml.htm for help.
- Why doesn't the atmosphere fall to the ground?
XHTML, 6KB
- How thick is the earth's atmosphere?
XHTML, 6KB
- What is geopotential altitude?
XHTML+MathML, 6KB or
PDF, 42KB.
- What are the equations of hydrostatic equilibrium?
XHTML+MathML, 9KB or
PDF, 50KB
- What is the surface area of a Sears-Haack body?
XHTML+MathML, 6KB or
PDF, 46KB
- What is the maximum deflection for an attached oblique
shock at a given Mach number?
XHTML+MathML, 5KB or
PDF, 42KB
- How do you compute the wave angle for a given Mach and
deflection angle in an oblique shock?
XHTML+MathML, 5KB or
PDF, 42 KB
- How do you compute the trajectory of a baseball in air?
XHTML, 8KB
- How do you compute the inverse of the Prandtl-Meyer function?
XHTML+MathML, 5KB or
PDF, 44KB
-
What is the difference between a Sears-Haack body and a
Von Karman Ogive?
-
What is the wave drag coefficient of a body of revolution
defined by the radius at a finite set of points?
-
What is the supersonic area rule?
-
What is the induced drag coefficient of a wing whose local
lift coefficient is known at a finite set of points?
-
How does one compute the shape of a NACA 6-series airfoil?
- How do you compute the wave angle for a given Mach and cone
angle (conical shock wave)?
- What is Shock-Expansion Theory?
- What is Second-Order Shock-Expansion Theory?
Public Domain Aeronautical Software (PDAS)
Order your copy of
Public Domain Computer Programs for the Aeronautical Engineer.
Last updated: 3 March 2005 by
Ralph Carmichael ralph@pdas.com