In this paper is presented a report of the status of the sensors after the stress test measurements carried out on a propeller of an outboard engine, preceded by the installation ehase for the most correct understanding of the anomalies and malfunctions occurred in the experimental phase, within the CSP Fluid-Techno project.

In this report the data of the high-speed ditching tests performed at the CNR-INM (Institute of Marine Engineering) former CNR-INSEAN, on single curvature, deformable specimens are presented. The report provides details on the specimen shapes and internal structure, the design and the instrumentation. The specimen designed was agreed with Airbus Defence and Space and mimics the internal structure of the aircraft. A total of four specimen were built and tested, two of them with a skin of uniform thickness of 1.6 mm and two with the skin thickness reduced by milling to 1.2 mm in the empty spaces between stringers and frames. The specimens with skin of uniform thickness were tested at 6 degrees pitch, V/U=0.0333, at a horizontal velocity U?48 m/s displaying a satisfactory repeatability of the data. Hence, the first specimen with the milled skin was tested still at 6 degrees pitch whereas the second specimen was tested at 10 degrees. In the latter case a large crack occurred on the skin soon after the impact and the large water ingress broke the cables and only a limited number of channel data is available. The purpose of the high-speed ditching tests on the single curvature deformable specimens is to provide a quite realistic dataset which can be used for the validation and development of the computational methods and to assess their ability to reproduce the correct fluid-structure interaction phenomena during ditching.

The setup and the acquisition system for acceleration and pressure sensors, for the motion position triggering of a cone-shaped module and tha acquisition of data and communication towards external part of a deprussurized metal chamber performed at CNR-INSEAN, (now CNR-INM)are presented. The whole set-up is placed inside a steel structure whit a cylindrical symmetry with the cone-shaped bottom (CONE), in order to simulate in scale a life boat. The CONE is free to fall vertically towars a free-surface water in a deprussurized chamber in order to take into account Euler number, i.e. the ratio between the ullage pressure and a typical dynamic pressure of the flow, for a proper scaling of the hydrodynamic loads on a structure when air-cavity phenomena occur.

In the present report the preparation and the instrumentation of the model are discussed. In particular, installation and positioning of the Inertial Measurement Unit (IMU), of the accelerometers and of the pressure probes are illustrated, together with their calibration and verification. Hence, some details concerning with the on-board acquisition system are provided. A separate section is devoted to the instrumentation and calibration of the body flaps. The final setting of the mass, the positioning of the COG and the procedures adopted to reproduce the moments of inertia are discussed as well.