It was still necessary for the observer to be located over the centre of gravity, in front of the pilot, to ensure fore and aft balance when the aircraft was flown "solo". In this awkward position, his view was poor, and the degree to which he could handle a camera (or, later, a gun) was hampered by the struts and wires supporting the centre section of the top wing. In practice, the pilot of a B.E.2 almost always operated the camera, and the observer, when he was armed at all, had a rather poor field of fire to the rear, having, at best, to shoot back over his pilot's head. Whenever bombs were to be carried, or maximum endurance was required, the observer would normally have to be left behind.