This paper describes the activities related to the design. manufacturing and commissioning of an innovative Hardware-In-the-Loop test rig for linear Power Take-Off testing. The rig is characterised by a fully coupled architecture in which three electro-mechanical units integrating a ballscrew and an electrical machine can actuate on a linear axis. either as motor or generator. https://www.roneverhart.com/DPA-d-fine-Slim-Capsule-Headset-Mic-Single-Ear-40mm-Boom-Interchangeable-Black-p7600/