[en] Results from the isothermal and nuclear loss-of-coolant experiments (LOCE) conducted in the Loss-of-Fluid Test (LOFT) facility are presented. The LOFT experiments have furnished thermal-hydraulic data from transients which are similar in nature and duration to those in a large pressurized water reactor (PWR) during a postulated loss-of-coolant accident (LOCA). The results are discussed in the order of system blowdown, core thermal response, and emergency core cooling performance and effectiveness. The timing in the sequence of significant events during blowdown depended principally on the coolant temperature rise in the core. The most dramatic timing differences were between isothermal and nuclear tests. The core experienced an early dryout during the first nuclear test that did not occur during the isothermal test. The core hydraulics caused a full-core rewet at 8 seconds after rupture initiation in the first nuclear experiment. Sufficient stored energy was removed from the core during this rewet so that the response of the core to emergency core coolant was the same in both the isothermal test and this first nuclear test