Installation:

	1. Create a directory of your choice and copy the following files 
	   into that directory.
	
		wnkite20.exe
		readme.txt
	
	
	2. Copy the following files into your /windows/system directory.
	
		ezprint.dll
		threed.vbx
		grid.vbx
	
	3. Run wnkite20.exe.


Note:  This program requires VBRUN300.DLL which can be obtained separately 
       at several sites around the network.

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Notes on how to use this design aid (from David Lord):  

     The kites described but this program are symmetrical about the 
vertical axis.  Therefore the required inputs and calculated dimensions 
are for one half the kite.  Exceptions are the spine and upper spreader.

     To use this program select from the menu a kite type.  You will be 
asked to select the leading edge spar length (this determines the kites 
size).  You will then be asked to input the nose half angle (this 
determines the aspect ratio and the area for the kite).

Kite Size - Selecting a depends on many factors.  Some of these factors
	are spar availability, wind speed range desired, uniqueness (smaller
	of larger than is common, strength required for the flyer, etc.

Spar Availability - A good selection of fiberglass/epoxy tubular spars
	exist and graphite spar are becoming increasingly available (see
	table contained in program).  I find it best to size the leading
	edge a multiple of 1.5, 2.0, or 3.0 times a stadard spar length.
	Most spars are 30 to 33 inches.

Wind Speed - The minimun wind speed for a kite is primarily determined by
	wing loading.  This program calculates wing loading in oz. per square
	foot.  For a reference point consider a standard Spin-Off.  It has a 
	wing loading factor of 1.5 oz. per square foot and will fly in winds 
	from 6 mph to 30 mph.  A kite with a wing loading of 1.0 or less 
	will fly in winds of 4 mph or less.

Kite Pull - For a given wind speed kite pull will be directly
	proportional to the wing area.  This parameter is calculated by this
	program.  A kite with 20 squares feet area will pull approximately 
	twice as hard as a kite with 10 square feet area. 

Sail Billow - Refers to how tightly the sail is fitted to the frame of
	the kite.  It has been my limited experience that a tight sail 
	results in less drag and in less stability.  Most kites have medium 
	billow.  I have not yet built a kite with a large billow but plan to 
	in the future.

Spar Stiffness - The spar stiffness module of this program allow you to 
	compare the stiffness of your candidate spar with a spar proven 
	adequate in a previous kite design.

*----------------------------------------------------------------------*


David O. Lord
15426 73rd St. Ct. East
Sumner, WA  98390
lord@eskinews.eskimo.com

Mark Descalzo
6621 E. Willow Ave.
Nampa, ID  83687
descalzo@flop.engr.orst.edu

