According to the CRRCSIM Wiki page, originally hosted at crrcsim.berlios.de:

"Crrcsim is a model-airplane flight simulation program. Using it, you can learn how to fly model aircraft, test new aircraft designs, and improve your skills by practicing on your computer.

It rules! The flight model is very realistic. The flight model parameters are calculated based on a 3D representation of the aircraft. Stalls are properly modelled as well. Model control is possible with your own rc transmitter, or any input device such as joystick, mouse, keyboard ..."

http://crrcsim.berlios.de*     (This site now asks for a password,  possibly access rights or content has changed.  See archived versions below)

MORE INFORMATION

Download CRRCSIM from Sourceforge

Download new models created for CRRCSIM

Connect your USB  transmitter - here's how.

How do you create model for CRRCSIM?  The instructions are here:" Creating a model for CRRCSIM" 

*Archived CRRCSIM page:  https://web.archive.org/web/20100418005925/http://crrcsim.berlios.de:80/wiki/

  ---- About 20 models to choose from ----- Includes a helicopter and quadcopter ----- Additional scenery available ---