After slaughtering, pork carcasses should be cooled down as fast as possible to reach a core temperature of 7°C (current requirement in European regulation) before transport in order to inhibit the growth of spoilage and pathogen microorganisms. To reach this temperature, carcasses are usually loaded into chiller rooms (15-20 hours) where the rate of cooling is controlled. To reduce the logistic time from slaughter house to cutting plant, a solution is proposed by loading the product into a trailer at core temperatures higher than 7°C. However, we have to assess that such a practice will not lead to a sanitary risk when applied to real scenario. In order to answer this issue, the first step will be to study the airflow characteristics within a trailer filled with pre-chilled pork carcasses. The objective of this study is to investigate experimentally the air velocity distribution in a reduced scale trailer filled with reduced scale carcass models under isothermal conditions. The 215 carcass models were made of polyurethane foam using a mold obtained by 3D printing based on X-ray scanner of a real carcass. The Reynold number in the experimental device is the same as in a real trailer (Re ~1.3