marker_beacon.cxx marker_beacon.hxx \
mrg.cxx mrg.hxx\
navradio.cxx navradio.hxx \
+ newnavradio.cxx newnavradio.hxx \
+ commradio.cxx commradio.hxx \
slip_skid_ball.cxx slip_skid_ball.hxx \
transponder.cxx transponder.hxx \
turn_indicator.cxx turn_indicator.hxx \