Back in 1912, Svenska Aktiebolaget Logg was among the first to launch a mechanical speed log, SAL 12. It measured speed through water, based on the Pitot tube principle. It was first installed on the merchant ship S/S Hyperion and was quickly proven to give reliable results and was immediately demonstrated for the Royal Swedish Navy. Two years later the first SAL log was delivered to the Royal Swedish Navy.
Over the years, Consilium has presented new types of speed logs and developed the existing ones, and along the line we have presented new features. In 1972, their first generation of acoustic speed log was launched and the speed logs that we market today are based on the same principle, which has proven to be a reliable solution for vessels of various sizes.
Earlier this year, we presented our latest innovation, SAL R1a Easy Tank, the easiest speed log to install. It is the fourth generation acoustic correlation speed log, measuring relative speed – speed through water. The transducer mounting is a closed ended installation – no need for water tight compartment or piping above sea line.
Contact your local office today to learn more about our wide range of navigation products for your needs and requirements.