/FixedPositionModel.cpp/1.1.1.1/Sat May 22 17:15:26 2004//
/FixedPositionModel.h/1.1.1.1/Sat May 22 17:15:26 2004//
/BaseModel.cpp/1.3/Thu Jun 17 12:38:24 2004//
/BaseModel.h/1.4/Sun Jun 20 13:30:14 2004//
/ConstantSpeedModel.cpp/1.12/Wed Jul  7 15:19:20 2004//
/ConstantSpeedModel.h/1.7/Wed Jul  7 15:19:20 2004//
D
