A sensor system, comprising: a gimbal (114, 116) supported for rotation about an axis relative to a static structure; a mechanical hard stop comprising: a base configured for fixation to a gimbal or static structure; a movable stop member configured for engagement with a fixed stop member, the movable stop member having a disengaged position, proximate the base, and an engaged position, spaced apart from the base; and an actuator operably connected to the movable stop member and configured to displace the movable stop member between the disengaged position and the engaged position according to a sensor selection received by the sensor system wherein the base of the hard stop is fixed to the static structure, wherein the movable stop member limits rotation of the gimbal in the engaged position, wherein the movable stop member does not limit rotation of the gimbal in the disengaged position a first sensor carried by the gimbal, wherein a field of view of the first sensor is orthogonal relative to the axis; and characterised in that the sensor system further comprises a second sensor, wherein the second sensor is carried by the gimbal, wherein the second sensor is arranged on a side of the axis opposite the first sensor; and wherein the first and second sensors (130, 132) are carried by the gimbal, the first sensor having a field of view that is larger than a field of view of the second sensor; and a controller operatively connected to the actuator and disposed in communication with a memory having instructions recorded on it that cause the controller to: receive a sensor selection; displace the movable stop member to the engaged position using the actuator when the first sensor is selected; and displace the movable stop member to the disengaged position using the actuator when the second sensor is selected. a gimbal (114, 116) supported for rotation about an axis relative to a static structure; a mechanical hard stop comprising: a base configured for fixation to a gimbal or static structure; a movable stop member configured for engagement with a fixed stop member, the movable stop member having a disengaged position, proximate the base, and an engaged position, spaced apart from the base; and an actuator operably connected to the movable stop member and configured to displace the movable stop member between the disengaged position and the engaged position according to a sensor selection received by the sensor system wherein the base of the hard stop is fixed to the static structure, wherein the movable stop member limits rotation of the gimbal in the engaged position, wherein the movable stop member does not limit rotation of the gimbal in the disengaged position a base configured for fixation to a gimbal or static structure; a movable stop member configured for engagement with a fixed stop member, the movable stop member having a disengaged position, proximate the base, and an engaged position, spaced apart from the base; and an actuator operably connected to the movable stop member and configured to displace the movable stop member between the disengaged position and the engaged position according to a sensor selection received by the sensor system wherein the base of the hard stop is fixed to the static structure, wherein the movable stop member limits rotation of the gimbal in the engaged position, wherein the movable stop member does not limit rotation of the gimbal in the disengaged position a first sensor carried by the gimbal, wherein a field of view of the first sensor is orthogonal relative to the axis; and characterised in that the sensor system further comprises a second sensor, wherein the second sensor is carried by the gimbal, wherein the second sensor is arranged on a side of the axis opposite the first sensor; and wherein the first and second sensors (130, 132) are carried by the gimbal, the first sensor having a field of view that is larger than a field of view of the second sensor; and a controller operatively connected to the actuator and disposed in communication with a memory having instructions recorded on it that cause the controller to: receive a sensor selection; displace the movable stop member to the engaged position using the actuator when the first sensor is selected; and displace the movable stop member to the disengaged position using the actuator when the second sensor is selected. receive a sensor selection; displace the movable stop member to the engaged position using the actuator when the first sensor is selected; and displace the movable stop member to the disengaged position using the actuator when the second sensor is selected.