An online class to help sailors prepare to take the on-the-water course in Spring 2024

2 x 90-Minute Live Sessions English Unlimited Access

For the last 40 years, there has been a curious hole in the ASA curriculum, with ASA 101 leading directly into ASA 103. This spring, our schools will start teaching our exciting new course, ASA 102: Keelboat 2. This course is for any sailor interested in building their core sailing skills. This includes becoming more proficient at sail trim and close-quarter maneuvering. It also includes improving your crew skills and working together as a team to make your vessel move more efficiently through the water. This live online course will help you prepare for the ASA 102 certification at an American Sailing School near you.

American Sailing Members - Save $20


“The ASA 102 certification will allow all sailors to receive structured time on the water to develop sailing skills that will make them more confident, and capable. I encourage all levels of sailors (even ASA 106 grads) to take ASA 102: Keelboat 2 at an ASA school. There are parts of this course that will help even advanced sailors improve their sail trim and handling. The ASA 102 Online Class will prepare students to take ASA 102 and hit the ground (water?) running.”

- Jonathan Payne, Executive Director, American Sailing


This 2-session online class will prepare sailors to take the ASA 102: Keelboat 2 certification course at an ASA school. The online class will dive deep into sail trim and handling using animations and video to teach the principles of the class.

In this class, you'll gain essential knowledge and skills for sailing effectively and safely, including specific roles on a boat, such as the skipper and crew. The class will also cover the detailed procedures for communication and coordination during critical maneuvers. Learn the responsibilities of being a skipper, how to maintain clear communication on board, and what it takes to be fully prepared for a day of sailing.

You will receive an in-depth look at boat handling, teaching you the steps for proper course and actions during different sailing maneuvers, the implications of weather helm, and the nuances of steering with a tiller extension. You will also explore sail trim concepts, learning how to manage sail shape and power through adjustments in angle of attack, depth, and twist. The practical skills section of the class will have you applying your knowledge hands-on, with demonstrations on safe seamanship practices, recovery techniques, rigging, sail control, and much more. By the end of this online class, you'll be equipped with the necessary knowledge and understanding to take the ASA 102: Keelboat 2 course at a school near you!


  • ANY sailor is looking to improve their sailing fundamentals.
  • Students preparing to take ASA 102 in Spring 2024.
  • ASA 101/103/104/ graduates seeking more experience with sail trim, boat handling, boat speed, and crew roles.
  • Sailors interested in exploring racing (while this isn’t a racing class, this class will provide a good foundation for your racing journey).
  • Students interested in taking North U performance classes at ASA Schools in the future.


  • ASA 101 Review
  • Safety, Planning, Preparation
  • Boat Handling
  • Tacking
  • Jibing
  • Ducking
  • Slow & Go
  • Mooring
  • Heaving-To
  • Crew Overboard
  • Sailing Rudderless
  • Sailing Backwards


  • Sails & Sail Trim
  • Trim Concepts
  • Sail Shape & Sail Power
  • Balance & Control
  • Sail Controls
  • Upwind Trim
  • Moderate Air Trim
  • Light Air Trim
  • Heavy Air Trim
  • Reefing
  • Reaching Trim
  • Reaching Trim vs Close-Hauled Trim
  • Reaching Trim, Course, and Power
  • Running Trim
  • Deep Broad Reach Trim
  • Wing & Wing Trim

Your Host


Bill Gladstone is the Director of the North U Performance Division of American Sailing. He is the author and creator of North U Performance Racing Trim and North U Performance Racing Tactics books, seminars, online classes, and Performance Race Week clinics. Bill is also the author of American Sailing's Advanced Cruising and Seamanship textbook and regularly presents online classes on seamanship.

Bill’s racing experience covers the spectrum, including everything from dinghies to maxis, ponds to oceans, and foredeck to helm. Bill has taught sailing and racing for over forty years throughout North America, Europe, and Asia. His books and programs have been translated into eleven languages. Graduates of his seminars and clinics number in the tens of thousands. They are winning races and cruising with confidence the world over.