21. A final stop turns off the motor when the sight is fully vertical, if the bomb aimer has forgotten to do so. 22. The bombsight is then set to that angle, and the bomb aimer drops the bombs when the target passes through the sights. 23. Johnson continued on squadron operations as an air gunner until the opportunity came along for him to train as a specialist bomb aimer . 24. The observer's cockpit was behind the pilot, where he could be rear gunner, bomb aimer , photographer or radio operator. 25. The bombs were dropped when the wires of the foresight, backsight and target overlapped as seen from the bomb aimer 's position. 26. OBE ( 28 July 1923 & ndash; 25 February 2015 ) was a Royal Air Force bomb aimer during the Second World War. 27. This, in effect, demanded the use of stabilization in order to allow the bomb aimer to continue making adjustments while the bomber maneuvered. 28. Instead, directional corrections from the bomb aimer were sent to a pilot direction indicator in the cockpit, similar to the original Norden models. 29. It had a crew of two with the pilot in an open cockpit aft of the wing with a gunner / bomb aimer behind him. 30. Once set up, the bomb aimer would watch objects on the ground and compare their path to thin wires on either side of the sight.