Fire Brigade Training Craft
This plane, which can be seen at Heathrow Airport, appears to be a mothballed aircraft from some bygone era. However, it isn’t. It’s simply a training plane for the purpose of simulation. The airport’s fire department uses it to train for the real deal in particular.

That’s why we think it makes sense. Planes are a lot of money, and more importantly, the lives of many individuals are at risk when the fire department is required. As a result, before a genuine emergency arises, you want everyone to know what they’re doing!