Hello there! Quick answer : 302 between perpendiculars. They were numbered from the mid-ship line as follows: 1 to 148 aft and 1 to 154 at the bow. Frame spacing reduces from 3 feet mid-ship to 27 inches at the stern and to 24 inches at the bow. For more details click on "Deck Plans" at the opening page of this site. Click on "profile" then page down to the bottom.