01-07-2017, 05:03 PM
According to the chart (Starcraft Template Summary) on page 83 (84 in the PDF), this is 19 Slots.
According to the chart (Medium Single-Person Fighter Template) on page 93 (94 in the PDF) and 96 (97 in the PDF), this is 18 Slots.
Errata: The Construction Charts don't match on number of Slots.