Home We welcome Visitors. Visit our Upcoming Events page, attend one of our Outdoor Flying Sessions, or attend one of our Monthly Business Meetings. Monthly Business Meetings are held on the 3rd Tuesday at the Southridge Presbyterian Church in Roeland Park, KS at 7:00 pm. There is no charge to attend. Click for Google Map. We specialize in Free Flight Model Aircraft. Our hobby is called Aeromodeling. To considering joining our club, go to Join HAFFA or go to our Contact page to visit with one of our members. Be sure to also visit our Gallery and History of HAFFA pages.