Abstract: An aircraft includes wings having integrated ducted fans. The integrated ducted fans each have a duct with a stiffness ring. Each stiffness ring is made up of stiffness boxes and circular-arc-shaped ring segments. The stiffness boxes can include first stiffness boxes and second stiffness boxes, and the first stiffness boxes and second stiffness boxes differ in terms of height.

Abstract: A ducted fan for an aircraft includes a rotor-side fan and a stator-side duct that surrounds the rotor-side fan. The stator-side duct includes an inner wall facing the rotor-side fan and an outer wall averted from the fan. The ducted fan further includes a fastening device configured to support mounting of the ducted fan on a structural component of the aircraft. The fastening device includes a pin and a guide body. The guide body is configured to receive and guide the pin, the pin is insertable proceeding from the inner wall into a recess of the guide body, a first end of the pin protrudes relative to the outer wall, and the pin is configured to be mounted, via the first end, on a bearing of the structural component of the aircraft.

Abstract: A ducted fan for an aircraft includes a rotor-side fan and a stator-side duct that surrounds the rotor-side fan. The stator-side duct includes an inner wall facing the rotor-side fan and an outer wall averted from the fan. The ducted fan further includes a fastening device configured to support mounting of the ducted fan on a structural component of the aircraft. The fastening device includes a pin and a guide body. The guide body is configured to receive and guide the pin, the pin is insertable proceeding from the inner wall into a recess of the guide body, a first end of the pin protrudes relative to the outer wall, and the pin is configured to be mounted, via the first end, on a bearing of the structural component of the aircraft.

Abstract: A ducted fan for an aircraft includes a rotor-side fan and a stator-side duct that surrounds the rotor-side fan. The stator-side duct includes an inner wall facing the rotor-side fan and an outer wall averted from the fan. The inner wall and outer wall each includes at least one layer composed of fiber-reinforced plastic. At least two honeycomb cores are arranged between the inner wall and the outer wall, the at least two honeycomb cores abutting against one another in an axial direction of the ducted fan. The honeycombs of the at least two honeycomb cores extend at least substantially in a radial direction of the ducted fan. A first of the at least two honeycomb cores is, at least in a region of an abutting surface that adjoins another of the at least two honeycomb cores, enwound or encased by at least one layer composed of fiber-reinforced plastic.

Abstract: An aircraft includes wings with integrated ducted fans. The ducted fans each have a duct with cutouts and a guide grille fitted into the cutouts. The guide grilles can be adhesively bonded into the cutouts. The ducted fans can have different construction variants of the duct, wherein the cutouts have a corresponding shape across all construction variants.

Abstract: An aircraft includes wings having integrated ducted fans. The integrated ducted fans each have a duct with a stiffness ring. Each stiffness ring is made up of stiffness boxes and circular-arc-shaped ring segments. The stiffness boxes can include first stiffness boxes and second stiffness boxes, and the first stiffness boxes and second stiffness boxes differ in terms of height.

Abstract: An aircraft includes wings with integrated ducted fans. The ducted fans each have a duct, and each respective duct is made up of inlet regions and outlet regions. Different ducts of different ducted fans can have different construction variants, but the outlet regions of respective ducts can be of identical or mirror-symmetrical shape with respect to one another in all construction variants.

Abstract: An adhesive bolt for forming a fastening point to a workpiece has a head and a shank connected to the head. The shank is set up to be introduced into a cutout on the workpiece. An adhesive is situated in the region of the shank and the workpiece. The shank is configured to enter into a non-positive preliminary connection with a bounding face of the cutout until the adhesive has hardened.

Abstract: An adhesive bolt for forming a fastening point to a workpiece has a head and a shank connected to the head. The shank is set up to be introduced into a cutout on the workpiece. An adhesive is situated in the region of the shank and the workpiece. The shank is configured to enter into a non-positive preliminary connection with a bounding face of the cutout until the adhesive has hardened.