Abstract: An aircraft with a hybrid power supply, the aircraft comprising: an external structure (12 to 20); electrical equipment (34); internal combustion propulsion means (40); and means for feeding energy to the propulsion means; the aircraft being characterized in that it further comprises: a plurality of converters for directly converting light energy into electrical energy (24), which converters are disposed on at least a fraction of the outside surface of the external structure; means (32) for comparing the electrical energy produced by said converters with the instantaneous consumption of said electrical equipment (34); means (36) for recovering the excess electrical energy, if any; and means (38) for delivering to said propulsion means (40) additional energy taken from said excess electrical energy, if any.