An apparatus is provided comprising a shaft having an axis and mounted to a boom structure, a support structure configured to be coupled to the shaft, wherein the support structure is configured to rotate about the axis. In addition, a method is provided comprising translating a cradle along a vertical axis, and rotating, in response to the translating, a support structure about a shaft, wherein the cradle is supported by the support structure, wherein the cradle remains stationary with regard to pitch rotation during the translating.