Abstract: A tubular hand grip fits on and over the end of the cycle handle. It has a peripheral outer surface that is grasped by the hand. An external flange is located adjacent to an end of the grip to limit the axial movement of the hand. A blade projects from the outer surface, and extends as a fragment of a helix toward the flange, increasing in lateral dimension as it goes. It preferably terminates at a gap in the flange. The thumb can be laid against the blade in a comfortable position to be stabilized and located there. The grip is preferably so proportioned that the first finger of the hand can be brought against the other side of the blade so the thumb and first finger exert an efficient gripping action that requires only minimal physical effort.

Abstract: A horn for attachment to a control surface of a model aircraft. The horn includes a spine to pass through the structure, a shoulder to bear against one face of the structure, and a unidirectional abutment body applicable to the spine to bear against the other side of the control surface. A horn projection extends from the spine to receive a push-pull actuator to establish the position of the control surface.