A target tug is an aircraft which tows an unmanned drone, a fabric drogue or other kind of target, for the purposes of gun or missile target practice. Target tugs are often conversions of transport and utility aircraft, as well as obsolescent combat types. Some, such as the Miles Martinet, were specially designed for the role. It was, and is, a relatively hazardous job, as live fire is typically employed and the people doing the shooting are usually still in training. History World War 2 Prior to and during World War II target tugs were typically operated by the air arms on behalf of which they flew, and were usually conversions of aircraft that had failed in combat or that were otherwise unsuitable or obsolete in their design roles (see Fairey Battle and Short Sturgeon). These aircraft typically trailed a drogue fabric sleeve at the end of a several-thousand metre long cable. Student fighter pilots or air gunners would shoot at the target from other aircraft using painted bullets so that hits could be recorded and later analysed. In the RAF, Miles Master IIs were used for this purpose as part of the Target Towing Flight at the Central Gunnery School whilst the School was based at RAF Sutton Bridge from April 1942 to March 1944. Other aircraft used in this role were the Hawker Henley, the Boulton Paul Defiant and the Westland Lysander, although the RAF was by no means the only air arm to use target tugs. They were used by most air forces. The USAAF used older aircraft such as the TBD Devastator as target tugs. The Luftwaffe and the VVS (Red Army) also used tugs. The chief modifications to the aircraft were a station for the drogue operator and a winch to reel in the cable prior to landing. The winch was typically powered by a small wind turbine on the outside of the aircraft, driven by the airflow and attached to the winch via a clutch. Such devices are still used by some aerial refueling tankers to retract the refueling hose after the operation is completed. The drogue would often be jettisoned at some location convenient for recovery prior to the aircraft's landing. The drogue itself caused a great deal of drag and could be dangerous, particularly to less-powerful aircraft. If the engine failed, the drag from the drogue could be enough to reduce the