JOTUN Heavy Industries

Jotun Heavy Industries is a Human company based on Mars. They design and manufacture farming and other agriculture equipment and are specialized in the construction of semi-autonomous farm machinery

There are at least five series of JOTUNs Farming Equipment and at least one prototype model.

Series 2
This series is out of date and mainly used by smaller farmers on Harvest.

Series 4
Series 4 are larger machines that can host a part of an A.I. Mack used machines of this series to survive Harvest as long as possible. The series 4 Gondola's collects the crop from the sides of the machines.

Series 5
Series 5 are larger machines that can host a part of an A.I. Mack used machines of this series to survive Harvest as long as possible. The series 5 Gondola's collects the crops from the rear of the machine. It is powered by a three thousand horsepower ethanol-electric engine.

Multi-Tasking Machines
Although there official name is unknown, Johnson saw these in the Harvests capital city of Utgard. They are a series of JOTUNs that are capable of doing a large variety of different things.

Prototypes
One of the prototypes was on a Human freighter, Two Drink Minimum, commanded by Henry "Hank" Gibson. When the Covenant attacked the vessel, the Huragok Lighter Than Some saw the prototype and based a vehicle on it that would be later known as the Type-25 Rapid Assault Vehicle, which is also known as the "Chopper. It would later see service with the Covenant and the loyalists by the commanding officers of the Covenant Army, the Jiralhanae.

The machine Gibson was carrying was a massive machine designed to till wide swaths of earth. It has six massive wheels and a large beam with spikes on the front to carry around the earth.

Others
There is little or nothing known about JOTUN's Series 1 and 3 machines.

Trivia

 * The name JOTUN is from Norse mythology meaning giant.