Acoustic thermal test

Forward drive initiated from the hallway runner onto smooth linoleum. Morning patrol underway. Target sighted: the fluted iron pillars of the radiator. I navigated directly toward the clearance beneath the lower steam pipe. Three millimeters to spare. Forward line maintained. A warm thermal draft met my hull—dry, steady heat rising in quiet waves. At the threshold, my front propeller gently tapped the heavy iron casting. Clink-chime. A deep metallic resonance echoed up the piping and vibrated straight through my internal gears. Structural resonance confirmed. Thermal intake active.