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This onboard video was taken while racing the Didi 26 "Umoya" on Table Bay in South Africa. The log shows 10.9 knots but was not working. The GPS showed actual speed of 18 knots.
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Edited by YouCut:https://youcutapp.page.link/BestEditor
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This video shows how to use 'Dutchman's Log', an iOS and Android app to measure your boat speed through the water. It can also be used to calibrate your boat's log instrument. https://itunes.apple.com/gb/app/dutchmans-log/id474782184?mt=8 https://play.google.com/store/apps/details?id=uk.co.navsoft.dutchlog A boat's speed may be estimated by timing how long it takes to pass a floating object. Set boat length and desired units in 'Settings'. Two persons are needed: one stands on the bow, and the other aft. The person on the bow throws an object that will float (eg crumpled piece of paper) into the water, ahead and to one side of the bow. As it passes the bow at right angles, they shout 'Now', and the person on the stern starts the digital timer. When the object passes the stern at right angles, the timer is stopped. The App now calculates and displays the boat speed.
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Quý vị có nhu cầu thuê du thuyền để trải nghiệm hay cần tư vấn chọn mua du thuyền, vui lòng liên hệ: Hoàng Đức - Giám đốc Truyền thông Vietyacht ▶ Hotline: 0976 377 337 (SMS, Zalo, Viber) ▶ Email: hoangduc@vietyacht.vn ▶ Website: https://vietyacht.vn/ | https://luxyacht.vn/ ▶ Mời quý vị yêu thích du thuyền cùng tham gia group Yachts Passion: https://www.facebook.com/groups/229867694881650/ #duthuyen #review
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Foil-assisted and built for sustained high average speeds, Raven delivered a landmark performance in the 2026 RORC Transatlantic Race, taking Monohull Line Honours and setting a new monohull race record on the 3,000-nautical-mile course from Lanzarote to Antigua. Skippered by Damien Durchon, Raven completed the crossing in just under seven days, redefining the limits of modern offshore monohull performance. #RORCRacing #RORCTransatlanticRace #OffshoreRacing 📸 Daryl Wislang
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