A winglet radome apparatus, comprising: a winglet body configured to securely mate to a distal end of a wing of an aircraft, wherein the winglet body comprises a leading edge, a trailing edge, a lower skin that extends between the leading edge and the trailing edge and defines a bottom outer shape of the winglet body, and an upper skin that extends between the leading edge and the trailing edge and defines an upper outer shape of the winglet body, and wherein the winglet body is made out of a material that allows uninterrupted transmission of wireless signals through the material; and an antenna assembly enclosed within the winglet body and configured to send or receive wireless signals from at least one location outside the winglet body, the antenna assembly including a grounding element that enables the antenna assembly to ground to at least a wing of an aircraft and a printed circuit board, wherein the printed circuit board includes one or more mounting features to assist in securing the position of at least a part of the antenna assembly relative to an inside of the winglet body, and wherein at least the winglet body forms an extension to the wing of the aircraft when the winglet body is securely mounted to the distal end of the wing, the winglet body being securely mounted by virtue of one or more securing and/or mounting features that allow the winglet body to be securely adapted to the distal end of the wing of the aircraft, and further wherein at least a part of the winglet body extends along at least a part of a longitudinal axis of the wing and a distal end of the winglet body deflects away from the longitudinal axis of the wing, forming an upturned wingtip, when the winglet body is so mounted. a winglet body configured to securely mate to a distal end of a wing of an aircraft, wherein the winglet body comprises a leading edge, a trailing edge, a lower skin that extends between the leading edge and the trailing edge and defines a bottom outer shape of the winglet body, and an upper skin that extends between the leading edge and the trailing edge and defines an upper outer shape of the winglet body, and wherein the winglet body is made out of a material that allows uninterrupted transmission of wireless signals through the material; and an antenna assembly enclosed within the winglet body and configured to send or receive wireless signals from at least one location outside the winglet body, the antenna assembly including a grounding element that enables the antenna assembly to ground to at least a wing of an aircraft and a printed circuit board, wherein the printed circuit board includes one or more mounting features to assist in securing the position of at least a part of the antenna assembly relative to an inside of the winglet body, and wherein at least the winglet body forms an extension to the wing of the aircraft when the winglet body is securely mounted to the distal end of the wing, the winglet body being securely mounted by virtue of one or more securing and/or mounting features that allow the winglet body to be securely adapted to the distal end of the wing of the aircraft, and further wherein at least a part of the winglet body extends along at least a part of a longitudinal axis of the wing and a distal end of the winglet body deflects away from the longitudinal axis of the wing, forming an upturned wingtip, when the winglet body is so mounted.