Drones Improve Surveys
Naval architecture and marine engineering company Foreship Ltd. confirms that draught surveys employing drones improve the accuracy of readings, as well as the speed and safety of the survey process. Following successful trials, Foreship has added the method to its service offering.
A draught survey is typically performed from a boat operated alongside the vessel. The boat, which may be a ship’s workboat or rescue boat, is lowered to the water where a surveyor can take readings using the markings painted on the ship’s hull. While this is a tried-and-tested process, it has disadvantages, says Markus Aarnio, chief naval architect, Foreship. “The traditional way of taking draught readings is time-consuming, and there are always some risks when launching a manned boat from a vessel, such that it is best avoided when not absolutely necessary. Then there is the question of accuracy: It can be difficult for a surveyor to take precise measurements in waves, while the ship operator’s interest is for the process to be completed in as short a time as possible, for example.”