XROTOR Download Page

XROTOR is an interactive program for the design and analysis of ducted and free-tip propellers and windmills.
It consists of a collection of menu-driven routines which perform various useful functions such as:

See also the QPROP web page.
QPROP/QMIL are alternative programs, which are more geared for doing parameter sweeps and coupling to motors or generators.
QPROP/QMIL have almost the same theoretical formulation as XROTOR, and they are also extensively documented, so their documentation can be used as the basic documentation for XROTOR.

Release Conditions

The most important conditions are:


Note: The source code for XROTOR itself is the same for Unix and Win32. The plot library directory (plotlib) has a separate win32 subdirectory. See all the README files for more info. Win32 Notes: Interaction with Win32 XROTOR is through a DOS-type text console window. Some of Microsoft's Win32 OS'es (Win95/98/ME) have limitations on # of lines in a console window and cannot fully display XROTOR menus or output. Win95/98/ME also have other shortcomings with regard to resource usage and stability although XROTOR runs under these OS'es. Windows NT, Win2000 and Windows XP are the recommended Win32 platforms.


- Mark Drela drela (AT) mit (DOT) edu, (also Harold Youngren guppy (AT) maine (DOT) rr (DOT) com)



----------------Page Revisions

10 Feb, 2011
- Page created
- XROTOR 7.54 (Unix)

24 Mar, 2011
- XROTOR 7.55 (Unix)

1 Feb, 2022
- XROTOR 7.69 (Windows)