Abstract: To improve upon a fan blade (6) with regard to the use of materials and the weight, in particular a fan blade for smoke venting fans, having fastening means (5) for fastening the fan blade (6) onto a fan hub as well as having a blade section (7), it is proposed that the blade section (7) shall have an outer jacket (8) enclosing a cavity.

Abstract: A system and method are disclosed to attach a blade section (2) of a fan blade (1), in particular of a smoke extractor fan, to a fan hub, as well as a fan blade (1), which provides a high tensile strength even at high temperatures. The attaching part and fan blades (1) are to be produced so as to save as much weight as possible. The attaching part has a connecting section (5) embodied to produce a high-tensile connection to a blade section (2) of a fan blade (1). The connecting section can be arranged essentially in the interior of the blade section (2).