RAF Halton plastic Jag that was not a Jag, but an engine ground running trainer that sported a simulated Adour mounted and a plastic Jaguar, but not a Jaguar fuselage, complete with a working Jaguar but not a Jaguar cockpit.
Engine run ongoing, student in cockpit going through the runs canopy shut, all of the studes on headsets where the engine noise and comms is being played and a display board off to one side is showing a simulation of what is happening engine wise... Quite impressive, the stude in the cockpit has a motor mounted under his seat to simulate the rumble and as it starts to fail the cockpit is slowly filling up with smoke, still determined the said stude is trying to waft it away to read the instruments... coughing heard and everyone looks at the smoke filled cockpit,
Exercise over and a dead not a Jag, but a Jag trainer. They kept drilling it into us all, even us ex Jaguar Engineers that this is NOT a Jaguar.