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In article <C0Hsnv.Cz9@cen.ex.ac.uk> RJSulliv@cen.ex.ac.uk (R.J.Sullivan) writes:
>I would be very grateful for any recommendations of textbooks which
>discuss the aspects of aerodynamics which are pertinent to helicopters.

"Rotary-Wing Aerodynamics," by W. Z. Stepniewski and C. N. Keys, Dover, 1984.

This book contains the following two volumes bound as one:

Volume 1: Basic Theory of Rotor Dynamics (With Application to Helicopters),
          by W. Z. Stepniewski, 1979.

Volume 2: Performance Predictions of Helicopters,
          by C. N. Keys, edited by W. Z. Stepniewski, 1979, 1981.

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Mike Elgersma
elgersma@src.honeywell.com
----------------------------------------------------

Greetings from down-under,

I am an engineer working in communications/software engineering with
a love of sailing. I have been teaching myself aerodynamics relevant to
sailing for my own interest/hobby/pastime etc..

In article Cz9@cen.ex.ac.uk, RJSulliv@cen.ex.ac.uk (R.J.Sullivan) writes:
[...]
>helicopters. I am looking for something along the lines of John
>Anderson's excellent series in general aerodynamic theory but specific
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
I agree, I have been working through John Andersons ' Intro to Aero'
book (I forget the exact title) and have found it to be superbly written.
However, the library I have access to doesn't seem to have any other texts
by JDA so that I was unaware of other texts that go into more detail (by him).

Specifically, I'm interested in subsonic, finite wing, thin foil analysis
in order to optimise my yacht performance subject to class constraints 
(this is a long term goal).  

Do the other texts in John Anderson's series cover detail on such aspects,
particularly numerical techniques on finite wing panel/vortex lattice...
methods for Navier-Stokes and/or Euler-Lagrange problems? Are there other
methods I should consider? 

Are there any aero experts who wont be too bored by sub-sonic flow stuff
to steer me in the right direction? Indeed, is there anyone who shares 
similar sailing theory interest and has already done all this?

Then there's the hydrodynamics stuff.. Anyone know about wave-making drag
on hulls! 

Thanks in advance,
regards
Roger.


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Roger,

Have I a book for you.  Unfortunately, its at home.
The title is Sailing Aerodynamics and Hydrodynamics.
Don't have the author or publishers.  It seems fairly
new, costs 59.95 and is quite good (well, I just got
it at bookstore in Boston over X-mas and have only
perused it so far, but it seems quite good :-)).
I'll try to write down the info. and bring it in Monday.
If you want the rest of the info. write back, because I'll
probably forget to send it if you don't remind me.
Terry Ghee

From Dan Sharpes who could not post this:

  Just to close the loop on this continent, I've attached the response I
sent Roger on Saturday:

  While Anderson's text (I'm not familiar with his series) is a good
introduction to the subject, I believe it is not at all helpful in
creating an algorithm to do the analyses you desire.  I used Bertin &
Smith's "Aerodynamics for Engineers" (1979, Prentice Hall, Englewood
Cliffs, New Jersey) as a starting point for my Master's thesis on v-tail
aircraft aerodynamics.

  Bertin & Smith pick up where Anderson leaves off on page 267 (1984
printing), and expands Anderson's equation 5.76 into a comparitively
easy-to-follow planar wing analysis, complete with a sample problem the
student can work through.  I used this as the starting point for my work
(which involved looking at a wing in three dimensions).  Once I got the
three-dimensional equations right, the rest was comparitively easy.
Similarly, the equations in B&S should be fairly straight forward to
program (I used FORTRAN 77).

  The Navier-Stokes and Euler-Lagrange codes are not only way over my
head, but they could be overkill on the sail design aspect of your
problem.  I believe they would be most appropriate for looking at the
hull design.  The trouble, as I see it, with these codes is the vast
amount of time required to mathematically define the hull.  Also, the
type of workstation required to interpret the results graphically place
it far out of my league.  HOWEVER, I have a friend who may know the
individuals who supported the America's Cup competitor from your part of
the globe a few years back (please pardon my spelling!! the Kokabora II,
was it?)  If you like, I could try to find the names of the individuals
involved.

  Anyway, good luck and all success to your ventures!

Dan Sharpes

Note: Dan asked me to send this to you as his net bounced him.
I found the author of the book I have and it is a guy by the
name of Marchaj.  A previous poster didn't like this reference
much, but I still think its a good text.  The publishing company
is International Marine Press, Camden, Maine, USA.  Good luck.