Spiderthresher farming drone

Designed as a fairly rugged, but cheap farming drone, the Spiderthresher requires a minimum of NAS supervision. Shaped like a large, articulated box with spindly, spider-like legs, it is uncannily like an enormous spider. Couple that with the roving spot lights designed to aid and augment the visual sensors, and the roaring methane internal combustion engine, and it looks like a nightmare come to life. All coincidentally, of course.