The ARI.23246/1 Sky Shadow is a radar jamming system (ECM pod), initially developed by GEC-Marconi Defence Systems, formerly operated by the Royal Air Force (RAF).
It was developed by GEC-Marconi Defence Systems, which employed around 48,000 people, in the early 1970s.
The Sky Shadow radar jammer was designed for and carried by the RAF's Tornado GR1 and GR4 (now retired).
[1] The ECM pod weighed around 200 kg, and was around 3 metres long.
[2] The Sky Shadow was hastily fitted to Harrier GR3 aircraft in the Falklands War, on the aircraft's 30mm gun pod.