Airflow-dependent deployable fences for aircraft wings are described. An example apparatus includes a fence of a wing of an aircraft. The fence includes a base that is coupled to the wing and a panel that is movable relative to the base and the wing between a stowed position in which the panel extends along a skin of the wing, and a deployed position in which the panel extends at an upward angle away from the skin. The panel is configured to impede a spanwise airflow along the wing when the panel is in the deployed position. The panel is configured to move from the deployed position to the stowed position in response to an aerodynamic force exerted on the panel.

Neutral Axis Duct with Tandem Telescopic Thrust Vectoring Leading and Trailing Edge Propellers for Multi-Mode Spatial Vehicle [NADTVPMSV] is a single monocoque chassis frame for a multi-mode vehicle that can travel in all land, air, over water and under water as a perfect road vehicle, perfect flying machine, perfect speed boat and perfect submarine. NADTVPMSV comprising of a longitudinal and transverse ducts with tandem thrust vectoring leading and trailing edge propellers integrated with at least one concealed or non-concealed leading and trailing bidirectional edge thrust vectoring propeller propellers connected with shaft and power source like motor or engine for providing vertical, horizontal and angular thrust to monocoque chassis frame; retractable under chassis wings with single to multi directional fluid flow design, opening and closing mechanism to control the flight as well as to adapt according to mode of the vehicle; one or more wheel tires and suspension components for the vehicle with at least one steerable wheel to travel on surface; at least one ballast tank to submerge and manoeuvre the vehicle under water.

Neutral Axis Duct with Tandem Telescopic Thrust Vectoring Leading and Trailing Edge Propellers for Multi-Mode Spatial Vehicle [NADTVPMSV] is a single monocoque chassis frame for a multi-mode vehicle that can travel in all land, air, over water and under water as a perfect road vehicle, perfect flying machine, perfect speed boat and perfect submarine. NADTVPMSV comprising of a longitudinal and transverse ducts with tandem thrust vectoring leading and trailing edge propellers integrated with at least one concealed or non-concealed leading and trailing bidirectional edge thrust vectoring propeller propellers connected with shaft and power source like motor or engine for providing vertical, horizontal and angular thrust to monocoque chassis frame; retractable under chassis wings with single to multi directional fluid flow design, opening and closing mechanism to control the flight as well as to adapt according to mode of the vehicle; one or more wheel tires and suspension components for the vehicle with at least one steerable wheel to travel on surface; at least one ballast tank to submerge and manoeuvre the vehicle under water.

Integrated slat chine apparatus and methods are described. An example apparatus includes a chine and a slat. The chine is coupled to an airfoil. The chine includes a lateral surface. The slat is located adjacent the lateral surface of the chine and coupled to the airfoil. The slat is movable relative to the airfoil between a stowed position and a deployed position. The slat is to expose the lateral surface of the chine when the slat is in the deployed position and to cover the lateral surface of the chine when the slat is in the stowed position.

Integrated slat chine apparatus and methods are described. An example apparatus includes a chine and a slat. The chine is coupled to an airfoil. The chine includes a lateral surface. The slat is located adjacent the lateral surface of the chine and coupled to the airfoil. The slat is movable relative to the airfoil between a stowed position and a deployed position. The slat is to expose the lateral surface of the chine when the slat is in the deployed position and to cover the lateral surface of the chine when the slat is in the stowed position.

A method of configuring a wing tip device (7) on an aircraft (1), including: undertaking ground-based operations at an airport with the wing tip device (7) in a ground configuration, in which the span of the aircraft is within an airport compatibility limit, moving the wing tip device (7) to a take-off configuration in which the wing tip device (7) is moved away from the ground configuration such that the span of the aircraft is increased and such that the wing tip device (7) has a first lift coefficient; taking-off with the wing tip device (7) in the take-off configuration; moving the wing tip device from the take-off configuration to a flight configuration, in which the wing tip device has a second lift coefficient, the second lift coefficient being lower than the first lift coefficient. The lift coefficient may be changed by adjusting the sweep of the wing tip device (7).

A method of configuring a wing tip device (7) on an aircraft (1), including: undertaking ground-based operations at an airport with the wing tip device (7) in a ground configuration, in which the span of the aircraft is within an airport compatibility limit, moving the wing tip device (7) to a take-off configuration in which the wing tip device (7) is moved away from the ground configuration such that the span of the aircraft is increased and such that the wing tip device (7) has a first lift coefficient; taking-off with the wing tip device (7) in the take-off configuration; moving the wing tip device from the take-off configuration to a flight configuration, in which the wing tip device has a second lift coefficient, the second lift coefficient being lower than the first lift coefficient. The lift coefficient may be changed by adjusting the sweep of the wing tip device (7).

A winglet for attachment to a wing portion of an aircraft including a winglet root. The winglet root defines a recess for receiving a connector of the wing portion in use and includes at least one protrusion for receipt into at least one corresponding hole of the wing portion in use. A portion of the winglet root that at least partially defines an upper or a lower side of the recess has at least one hole extending therethrough for receiving a fastener for fastening the winglet to the connector when the connector is located in the recess.

A winglet for attachment to a wing portion of an aircraft including a winglet root. The winglet root defines a recess for receiving a connector of the wing portion in use and includes at least one protrusion for receipt into at least one corresponding hole of the wing portion in use. A portion of the winglet root that at least partially defines an upper or a lower side of the recess has at least one hole extending therethrough for receiving a fastener for fastening the winglet to the connector when the connector is located in the recess.

An aircraft wing comprises a fixed wing, and a wing tip device at the tip thereof. The wing tip device is configurable between (i) a flight configuration for use during flight, and (ii) a ground configuration for use during ground based operations. In the ground configuration with span of the wing is reduced. The wing further comprises a locking mechanism including a locking pin with a longitudinal axis, the locking pin associated with one of the fixed wing and the wing tip device, and a bush associated with the other of the fixed wing and wing tip device, the bush configured to receive the locking pin. The bush is located within a bush housing arranged to allow relative movement of the bush in the direction of the longitudinal axis of the locking pin when the locking pin is received within the bush.