A nock body may include a first end and an opposing second end. A nock housing may include a proximal end that engages the first end of the nock body and a distal end opposite the proximal end. A slot may be defined in the nock housing beginning at the distal end that extends in a direction of the proximal end. An LED/battery assembly may be disposed at least partially inside of the nock housing. A fastener may be secured to the nock housing in a location that causes a width of the slot to narrow and secure the LED/battery assembly. A groove may be defined in the nock body beginning at the first end that extends towards the second end. A nock activation lockout can be provided to block an LED activation gap from closing so that the LED does not unintentionally turn on.

A vane wrap for a projectile is provided where the wrap includes a base configured to wrap entirely around a circumference of a projectile, such as an arrow, and adhere to the arrow. The base includes an outward facing surface having a set of adhesive strips which are placed in predetermined locations and equally spaced about the circumference when the base is applied to the arrow. Each adhesive strip can include an individual corresponding release liner removable from the strip to expose the respective adhesive for application of a vane thereto, and to the arrow in predetermined locations about a circumference of the arrow. A related method of use also is provided.

A vane wrap for a projectile is provided where the wrap includes a base configured to wrap entirely around a circumference of a projectile, such as an arrow, and adhere to the arrow. The base includes an outward facing surface having a set of adhesive strips which are placed in predetermined locations and equally spaced about the circumference when the base is applied to the arrow. Each adhesive strip can include an individual corresponding release liner removable from the strip to expose the respective adhesive for application of a vane thereto, and to the arrow in predetermined locations about a circumference of the arrow. A related method of use also is provided.

In one aspect, an example system includes an arrow nock configured to couple to an arrow, a transmitter coupled to the arrow nock, and a controller. The controller is configured to (i) determine that the arrow has been shot from a bow and (ii) responsive to determining that the arrow has been shot from the bow, cause the transmitter to transmit a beacon signal at a variable rate that varies based on an amount of time elapsed since determining that the arrow has been shot from the bow.

In one aspect, an example system includes an arrow nock configured to couple to an arrow, a transmitter coupled to the arrow nock, and a controller. The controller is configured to (i) determine that the arrow has been shot from a bow and (ii) responsive to determining that the arrow has been shot from the bow, cause the transmitter to transmit a beacon signal at a variable rate that varies based on an amount of time elapsed since determining that the arrow has been shot from the bow.

An aerodynamic element (often referred to as a vane or fletching) that is operatively coupled to the nock end (the back) of an arrow that adds significant stability associated with vanes of similar height (referred to as “high profile” in the archery community) without the noise (amplitude and frequency) commonly associated with such vanes while also providing low drag characteristics. The vane has an initial front or leading edge at a shallow initial angle relative to the axis of the arrow. When the vane is mounted at an angle (known as offset or helical) to the axis of the arrow, this front shallow initial angle (and area under it) is utilized as a vortex generator. This vortex mixes and therefore helps balance velocities in the lower pressure, large aft area which is initiated at a point along the leading edge that increases to a steeper angle relative to the initial angle. The top of the vane is parallel to the axis of the arrow for stability as well as sound advantages. The back edge of the vane then angles down at a steep angle in a straight line to help with noise as well as control airflow.

An aerodynamic element (often referred to as a vane or fletching) that is operatively coupled to the nock end (the back) of an arrow that adds significant stability associated with vanes of similar height (referred to as “high profile” in the archery community) without the noise (amplitude and frequency) commonly associated with such vanes while also providing low drag characteristics. The vane has an initial front or leading edge at a shallow initial angle relative to the axis of the arrow. When the vane is mounted at an angle (known as offset or helical) to the axis of the arrow, this front shallow initial angle (and area under it) is utilized as a vortex generator. This vortex mixes and therefore helps balance velocities in the lower pressure, large aft area which is initiated at a point along the leading edge that increases to a steeper angle relative to the initial angle. The top of the vane is parallel to the axis of the arrow for stability as well as sound advantages. The back edge of the vane then angles down at a steep angle in a straight line to help with noise as well as control airflow.

A high impact strength lighted nock assembly for an arrow that is activated when the arrow is fired with a bowstring. The lighted nock assembly includes a nock molded from a high impact strength, transparent polymeric material containing at least 10% by weight reinforcing fibers. The nock includes a head configured to engage with the bowstring and a shank configured to couple with a rear end of the arrow. The shank includes a recess extending in a distal end of the shank toward the head. A light assembly including a light emitting device is located in the recess in the shank that is electrically coupled to a battery. A switch is electrically coupled to the light emitting device and the battery that is triggered when the arrow is tired to activate the light emitting device.

A high impact strength lighted nock assembly for an arrow that is activated when the arrow is fired with a bowstring. The lighted nock assembly includes a nock molded from a high impact strength, transparent polymeric material containing at least 10% by weight reinforcing fibers. The nock includes a head configured to engage with the bowstring and a shank configured to couple with a rear end of the arrow. The shank includes a recess extending in a distal end of the shank toward the head. A light assembly including a light emitting device is located in the recess in the shank that is electrically coupled to a battery. A switch is electrically coupled to the light emitting device and the battery that is triggered when the arrow is tired to activate the light emitting device.

In some embodiments, an arrow comprises a shaft, a nock and a deflector. The shaft comprises a cavity and the nock comprises a boss. The deflector surrounds the shaft and comprises a deflecting surface oriented at an angle to a surface of the shaft. The boss is positioned within the cavity and the deflector overlaps the boss.