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18 st / September 2015 www.sea-technology.com families, competed in ISR 12, the parents started the 501c3 organization to prepare for participation in this race. The ISR 13 team was composed of children eight to 16 years old, all of whom played a role in building the one-person, non- propeller submarine. The group split into teams based on the different functional components of the submarine and assigned both a child and adult lead to each group. These leads were charged with researching and leading their group as they built the submarine. Laurie Hayes, one of the parents of the team, said that the students (and parents) not only learned a great deal about engineering, but also about proj- ect management. While the experiential STEM learning was the focus of the week, she was most appreciative of the spirit of the races. "The spirit of the races is to keep challenging, moving forward; to keep learning," she said. Furthermore, she was grateful for the supportive environment, mention- ing how the students on the team would visit other teams in the race and gain insight and advice on submarine building. The University of Washington, with their cleverly named "What Sub Dawg?" submarine, was one of the teams that shared information, as well as tools with the Nautilus team. The Huskies, like many other teams, faced both successes and obstacles as the week progressed. The week started a little slowly, but soon the team found its bearings, reaching faster speeds with each run. They encountered a few drive train issues, but continued to tweak and fx the submarine as they chased the world record. When the fnal runs began, the team had yet to reach the record, but was poised to win the speed category for a one-person, propeller submarine. However, as the fnal day progressed, WASUB 5, a team from Delft, Netherlands, and a friendly competitor with the University of Washington, raced into frst place with a new world record of 7.42 kt. for a single-person, propeller sub- marine. World Record All week long, the team from Delft University of Technol- ogy struggled to increase the speed of WASUB 5. They knew that they would need two things to cross the fnish at top speed: for the submarine to go straight and for it to be at full power. After working to fx some of the smaller problems it encountered at the start of the races, the team decided to make some adjustments. "We removed the stability fns and trusted our pilot," said the team leader Ruben de Nie. With the team's hope of victory on his shoulders, the pilot, Robert Braam, sped to frst place—and a new world record of 7.42 kt. De Nie, speaking for the team, said he was so thrilled and excited to achieve a new record. While setting a new world record was the highlight of his week, de Nie also mentioned that it was great meeting so many other enthusiasts, par- ticularly how wonderful it was to be "surrounded by people with the same passion, same fun and same ambition." Awards The week concluded with an awards ceremony, honoring each of the participants and the top teams in different catego- ries. There were also awards for Innovation, Absolute Speed, Best Design Outline, Smooth Operator (for effciency in stag- ing for the race course), and the Best Spirit of the Races. The award for Overall Performance, a $1,500 award sponsored by Booz Allen Hamilton, is determined by 17 P.O. Box 2030, North Kingstown, RI 02852, USA Tel: +1 401 884 8801 Fax: +1 401 884 8868 www.subsalve.com richard@subsalve.com The World's Best Underwater Lift Bags from 25 lbs. to 50 tons, Water Load Test Bags to 50 tons. IMCA Compliant. ABS Approved. MARK V/ORCA RAPID RECOVERY SYSTEMS AIRCRAFT LIFTING BAGS WATER LOAD TEST BAGS VEHICLE RECOVERY SYSTEMS CABLE & PIPELINE FLOATS LIFEBOAT DAVIT TEST KITS FEND D - D - AIR R ® INFLAT T - A - A - TANK PIPE PLUGGERS S ®