slip_skid_ball.cxx slip_skid_ball.hxx \
heading_indicator.cxx heading_indicator.hxx \
vertical_speed_indicator.cxx vertical_speed_indicator.hxx \
slip_skid_ball.cxx slip_skid_ball.hxx \
heading_indicator.cxx heading_indicator.hxx \
vertical_speed_indicator.cxx vertical_speed_indicator.hxx \