The rhombohedral hydrofoil (20) for a craft travelling parallel to an axis (46) has a plane of symmetry and comprises front wings (21, 22) that are connected to one another and rear wings (25, 26) that are connected to one another. The end of each front wing that is furthest from the junction of the front wings with one another is connected to one end of a rear wing which is the end furthest from the junction of the rear wings with one another. This assembly of wings has a first orthogonal projection onto a plane referred to as “vertical” perpendicular to the axis of travel, this projection having the shape of a quadrilateral having an obtuse angle at the junction of the front wings with one another, an obtuse angle at the junction of the rear wings with one another, and two acute angles at the junction of a front wing with a rear wing. This assembly of wings has a second orthogonal projection onto a plane referred to as “horizontal” orthogonal to the plane of symmetry and having an axis parallel to the axis of travel, this projection having the shape of a quadrilateral having only angles with magnitudes smaller than 180 degrees.
B63B 1/24 - Caractéristiques hydrodynamiques ou hydrostatiques des coques ou des ailes portantes tirant une portance supplémentaire des forces hydrodynamiques du type ailes portantes
B63B 1/28 - Caractéristiques hydrodynamiques ou hydrostatiques des coques ou des ailes portantes tirant une portance supplémentaire des forces hydrodynamiques du type ailes portantes à ailes portantes réglables
The drone (18) comprises a fuselage (21) which comprises: - rotation means (40, 60) for rotating two half-wings (22, 23, 24, 25) about two axes of rotation, on each side of the fuselage, the rotation means being configured so that, during the deployment of the wing assembly (20) consisting of the four half-wings on either side of the fuselage, the rotations of these half-wings on the same side of the fuselage are performed in opposite directions until these half-wings come into contact, and - means (29, 30) for coupling together the half-wings on the same side of the fuselage when in contact. In some embodiments, the rotation means (40, 60) are configured, together with the lengths of the half-wings (22, 23, 24, 25) on the same side of the fuselage (21), so that the contact between these half-wings is made at the free end of these half-wings.
The rhombohedral hydrofoil (20) for a craft travelling parallel to an axis (46) has a plane of symmetry and comprises front wings (21, 22) that are connected to one another and rear wings (25, 26) that are connected to one another. The end of each front wing that is furthest from the junction of the front wings with one another is connected to one end of a rear wing which is the end furthest from the junction of the rear wings with one another. This assembly of wings has a first orthogonal projection onto a plane referred to as "vertical" perpendicular to the axis of travel, this projection having the shape of a quadrilateral having an obtuse angle at the junction of the front wings with one another, an obtuse angle at the junction of the rear wings with one another, and two acute angles at the junction of a front wing with a rear wing. This assembly of wings has a second orthogonal projection onto a plane referred to as "horizontal" orthogonal to the plane of symmetry and having an axis parallel to the axis of travel, this projection having the shape of a quadrilateral having only angles with magnitudes smaller than 180 degrees.
B63B 1/24 - Caractéristiques hydrodynamiques ou hydrostatiques des coques ou des ailes portantes tirant une portance supplémentaire des forces hydrodynamiques du type ailes portantes
B63B 1/28 - Caractéristiques hydrodynamiques ou hydrostatiques des coques ou des ailes portantes tirant une portance supplémentaire des forces hydrodynamiques du type ailes portantes à ailes portantes réglables
B63B 1/30 - Caractéristiques hydrodynamiques ou hydrostatiques des coques ou des ailes portantes tirant une portance supplémentaire des forces hydrodynamiques du type ailes portantes à ailes portantes réglables escamotables ou repliables
B63B 32/64 - Appendices de planches, p. ex. ailerons, ailes portantes ou dérives centrales réglables, p. ex. en ajoutant des parties, en enlevant des parties ou en modifiant l’orientation ou le profil
B63B 32/60 - Appendices de planches, p. ex. ailerons, ailes portantes ou dérives centrales
B63B 32/62 - Appendices de planches, p. ex. ailerons, ailes portantes ou dérives centrales caractérisés par les matériaux, p. ex. matériaux stratifiésAppendices de planches, p. ex. ailerons, ailes portantes ou dérives centrales caractérisés par leur processus de fabrication
The aircraft (10) comprises a fuselage (11) and a rhombohedral wing structure (12) comprising front wings (13, 14) mounted on a front wing-root support (17) and rear wings (15, 16) mounted on a rear wing-root support (18).
At least two wings (13, 14) support an engine (24, 26) provided with a propeller (25, 27).
The rear end of the fuselage supports an engine (21) provided with a propeller (22).
The aircraft comprises means (28 to 35) for tilting said engines, the rotary shaft of each of the propellers being tilted between an orientation parallel to the main axis of the fuselage and an orientation perpendicular to the main axis of the fuselage and to an axis extending through the ends of the front wings.
B64C 27/28 - Giravions complexes, c.-à-d. aéronefs utilisant en vol à la fois les caractéristiques de l'avion et celles du giravion avec hélices propulsives de déplacement pouvant pivoter pour agir comme rotors de sustentation
B64C 39/06 - Aéronefs non prévus ailleurs à ailes en forme de disque ou d'anneau
The aircraft (10) comprises a fuselage (11) and a rhombohedral wing structure (12) comprising front wings (13, 14) mounted on a front wing-root support (17) and rear wings (15, 16) mounted on a rear wing-root support (18). One end of each front wing is articulated to one end of a rear wing and at least one of the wing-root supports is able to move along the fuselage. The wing-root supports (17, 18) are positioned respectively underneath and on top of the fuselage (11).
The length (41) of the rear wings (15, 16) is strictly less than the length (48) of the front wings (13, 14).
The aircraft (10) comprises an adaptor for adapting the position of each wing root (17, 18) to suit the flight conditions.
The aircraft (10) comprises a fuselage (11) and a rhombohedral wing structure (12) comprising front wings (13, 14) mounted on a front wing-root support (17) and rear wings (15, 16) mounted on a rear wing-root support (18). At least two wings (13, 14) support an engine (24, 26) provided with a propeller (25, 27). The rear end of the fuselage supports an engine (21) provided with a propeller (22). The aircraft comprises means (28 to 35) for tilting said engines, the rotary shaft of each of the propellers being tilted between an orientation parallel to the main axis of the fuselage and an orientation perpendicular to the main axis of the fuselage and to an axis extending through the ends of the front wings.
The aircraft (10) comprises a fuselage (11) and a rhombohedral wing structure (12) comprising front wings (13, 14) mounted on a front wing-root support (17) and rear wings (15, 16) mounted on a rear wing-root support (18). One end of each front wing is articulated to one end of a rear wing and at least one of the wing-root supports is able to move along the fuselage. The wing-root supports (17, 18) are positioned respectively underneath and on top of the fuselage (11). In some embodiments, the length (41) of the rear wings (15, 16) is strictly less than the length (48) of the front wings (13, 14), the angle (42) formed between the main longitudinal axis (44) of the fuselage (11) and the main axis (43) of the rear wings therefore being, in all flight configurations, more obtuse than the angle (46) formed between the main longitudinal axis of the fuselage and the main axis (45) of the front wings. In some embodiments, the aircraft (10) comprises a means for adapting the position of each wing root (17, 18) to suit the flight conditions.
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