An 11 second loop. Four links of the propulsion chain appear in a row: battery, ESC, motor and propeller. Energy pulses flow along the chain and a thrust arrow rises from the propeller. Then one fault is introduced. A damaged propeller vibrates and gives a wobbling, reduced thrust arrow; a hot motor shows heat waves; a sagging battery drains and weakens everything downstream. A telemetry pulse runs from the faulty link to the remote pilot's controller screen, which shows a warning symbol, and the decision Land, inspect appears. With no fault selected the controller shows a green tick and thrust stays steady. The still frame shows the damaged-propeller case after the warning.
