An aerodynamic fishing assistant is disclosed. The fishing assistant comprises a float with an opening. The fishing assistant further comprises a shaft having a first end and a second end, wherein the second end is configured to slidably positioned into the opening of the float from a bottom portion and affixed to a top portion of the float by a fastening assembly comprises a cupped washer, a bead, and an eyelet. The float further comprises a weight member adhesively bonded on the bottom portion of the float. A lead line with a hook securely affixed to the eyelet at the top portion of the float using a swivel and a clip, thereby accurately casting the float and the lead line with the hook out to a target destination into the water for fishing and prevents the lead line from being tangled to a fishing rig by spinning of the float.

The present disclosure discloses an unmanned aerial vehicle (UAV), comprising a housing having a top part and a bottom part, a plurality of arms arranged on the top part, each arm having a motor and an airscrew, a battery unit arranged within the housing, a processor arranged within the housing, a sonar unit having a wire connected thereto, and a positioning unit detachably mounted within a mounting groove recessed from the bottom part, wherein the positioning unit is connected to the wire and configured to retract or release the wire. An UAV readily configured for fishing can be provided by embodiments of the present disclosure.

The present disclosure discloses an unmanned aerial vehicle (UAV), comprising a housing having a top part and a bottom part, a plurality of arms arranged on the top part, each arm having a motor and an airscrew, a battery unit arranged within the housing, a processor arranged within the housing, a sonar unit having a wire connected thereto, and a positioning unit detachably mounted within a mounting groove recessed from the bottom part, wherein the positioning unit is connected to the wire and configured to retract or release the wire. An UAV readily configured for fishing can be provided by embodiments of the present disclosure.

The invention presented is a remote-controlled fishing bobber system. The fishing bobber is made up of a bottom portion being independently rotational from a top portion. The bottom portion of the bobber has a through channel connecting two ports on opposing sides. One or more protective screens protects the two ports. The system includes a propelling system with a pump, a motor, a control circuitry, a battery, and a remote control.

The invention presented is a remote-controlled fishing bobber system. The fishing bobber is made up of a bottom portion being independently rotational from a top portion. The bottom portion of the bobber has a through channel connecting two ports on opposing sides. One or more protective screens protects the two ports. The system includes a propelling system with a pump, a motor, a control circuitry, a battery, and a remote control.

The invention is directed to a method of making a stem of a fishing float. The method includes a first step of using injection molding to form a first stem part, a second step of using injection molding to form a second stem part, and a third step of mounting the first stem part to the second stem part.

A shape-memory alloy (SMA) wire for fishing corks, including an SMA wire body; a first end extending along a first direction of the SMA wire body; and a second end extending along a second direction opposite to the first direction; wherein: the SMA wire forms a first annular part at the first end and a second annular part at the second end; both the first annular part and the second annular part are subject to heat treatment; the first annular part and the second annular part are configured to bear a first tensile force prior to the heat treatment; the first annular part and the second annular part are configured to bear a second tensile force subsequent to the heat treatment; and the second tensile force is at least 100% greater than the first tensile force.

A shape-memory alloy (SMA) wire for fishing corks, including an SMA wire body; a first end extending along a first direction of the SMA wire body; and a second end extending along a second direction opposite to the first direction; wherein: the SMA wire forms a first annular part at the first end and a second annular part at the second end; both the first annular part and the second annular part are subject to heat treatment; the first annular part and the second annular part are configured to bear a first tensile force prior to the heat treatment; the first annular part and the second annular part are configured to bear a second tensile force subsequent to the heat treatment; and the second tensile force is at least 100% greater than the first tensile force.

In a fishing float including a buoyant body and a line-passing ring, the buoyant body constitutes a rotating body that rotates about a central axis as rotation center passing through the buoyant body in an up-down direction, and includes a recess located on a lower side of the buoyant body and formed so as to recede upward. The recess is deepest at the rotation center of the rotating body, and becomes shallower in a direction away from the rotation center of the rotating body. The line-passing ring is supported by the buoyant body, and attached to the buoyant body at a position corresponding to the rotation center of the rotating body, so as to protrude upward from an upper surface of the buoyant body.

In a fishing float including a buoyant body and a line-passing ring, the buoyant body constitutes a rotating body that rotates about a central axis as rotation center passing through the buoyant body in an up-down direction, and includes a recess located on a lower side of the buoyant body and formed so as to recede upward. The recess is deepest at the rotation center of the rotating body, and becomes shallower in a direction away from the rotation center of the rotating body. The line-passing ring is supported by the buoyant body, and attached to the buoyant body at a position corresponding to the rotation center of the rotating body, so as to protrude upward from an upper surface of the buoyant body.