THE UNITED STATES POWERBOAT SHOW is scheduled for October 1114 in Annapolis. More than 650 boats, including new and brokerage models, will be there. THE SHOW HAS A DEMO DECK where builders and manufacturers demonstrate new boats, engines and equipment. CRUISERS UNIVERSITY provides tips for living aboard, planning a cruise, maintenance and more. CHILDREN GET IN FREE if they are 6 or younger. ADULT TICKET PRICES are $18 in advance or $20 at the gate. The preview day price is $35. A $48 combination ticket includes the preview day plus one additional day. An adult two-day ticket (not including the preview day) is $31.