Turbine loading and performance data for three Supergen UKCMER Tidal Turbines in a closely spaced staggered array at FloWave. Source data (external link): https://datashare.ed.ac.uk/handle/10283/3563 This dataset presents a set of turbine loading and performance measurements carried out at the FloWave Ocean Energy Research Facility, around a closely spaced staggered array of three nominally 1:15 scale tidal turbines, with a 1.2m rotor diameter. Measurements were made at different rotation speeds, with the three turbine array compared to just the single rear turbine, logging: streamwise root bending moment in each blade, drive shaft torque, thrust on the rotor, and angular velocity of the rotor.Type of data:Tank testProject(s):SuperGen UKCMERFacility:FloWave (University of Edinburgh)Licencing restrictions:Creative Commons Attribution 4.0DOI:https://doi.org/10.7488/ds/2761 This article was published on 2026-10-14