SCIENTIFICA - Page 21

ail S Science Of The Aboard Crew Adventures Whaleboat! wood Lake The Craig Ryder one day on North 71 spent most of study members Crew 43 During our field The Craig Ryder. rd the 27ft aboard thwood Lake aboa ew set sail on Nor the boat of the cr factors that propel oat to examine the powered by a whaleb s how does a boat d. The question wa orthwood Lake forwar nd? Sailing on N faster than the wi d engineering. sail go r, navigation, an es physics, weathe involv Joshua Ratty provided instruction on the boat. Josh did most of the research on the building of the Craig Ryder and was the principal leader of the Key Foundation in its creation. He is a professional boat builder and engineer and has years of sailing experience. TOP SPEED RECORDED 17.37952 knots Sailing conditions were perfect. Each member of the crew had an opportunity to put his or her hands on the tiller and navigate. The Crew gained speeds of 20mph, (17.37952 knots). This is believed to be a new speed record for the Craig Ryder with a full crew. Crew learned the importance of the centerboard, which is a retractable keel, which pivots out of a slot in the hull of a sailboat. The crew learned you couldn’t sail without it. A centerboard is used to provide lift to counter the lateral force from the sails. This is required for sailboats to move in directions other than downwind, since the force of the sail is never closer than 45 degrees to the apparent wind. Centerboard The Craig Ryder was happy to tow Brian’s motorboat when he got stuck…