Isomat makes 2 different kinds of Spinnaker Cars to fit this track.
Cars slide freely and are positioned on the track with the use of a line control system.
If this cutout is not there you will have to cut it, or unstep the mast to install these Spinnaker Cars. NG-105 Mast Sections are shipped with both sets of liners, credit will be issued for one set of liners upon return. Heavy-duty Ring Car for use with spinnaker poles having standard piston or trigger, plunger ends. See NG-105 notes , above. Car accommodates a variety of toggles from others, for use with various pin and bell-type inboard pole ends.