Hi 
Except for exotic one-offs, twin-engined commercially produced 4-wheel tractors are rare. As high-power tractors are available from most of the well-known manufacturers today, there is probably no need for them now. In the 1950s and 1960s, things were different, and this led companies like Ernest Doe & Sons in the United Kingdom to link two tractors together, and thereby create a twin-engined, articulated and 4-wheel-driven tractor with twice the power of the traditional tractors on the market at that time.
I have never seen a commercially produced twin-engined 2-wheel tractor, but one is coming close:
In the alpine regions of central Europe, a handful of companies are producing 2-wheel tractors for professional users like farmers and public authorities. One of these - Brielmaier - offers the possibility to attach two 2-wheel tractors to the same implement! A number of videos on YouTube shows this impressive setup:
https://www.youtube.com/watch?v=A5WBVOzKoIw
The video above shows the tractor(s) mowing on a slope with a gradient up to 112% (48 degrees) with a 6 m (20 feet) wide sickle mower. One of the tractors are the "master" and the other one follows commands through a simple electrically connection. The tractors can be operated normally via the controls of the master, or remotely via a small remote control. Depending on the nature and size of the field, using the remote control can reduce the walking distance to less than half of normal.
Another video - made by an independent agricultural magazine - shows a comparison with the 100 hp conventional tractor that the farmer normally uses on his field:
https://www.youtube.com/watch?v=LzJsOKQAWdA
The farmer in this case, uses a 3 m (10 feet) mower, as experience has shown him that a heavier one cannot cope with the slope. The speaker tells that the 2-wheel tractor can mow almost twice as fast as the normal tractor, for less than half the fuel.
Another test shows, that it is possible to mow up to 3-4 ha/hour (7.5-10 acre/hour) with a gasoline/petrol consumption of 1.6 l/ha (0.17 US gallon/acre).
An interesting use of 2-wheel tractors, that as an extra bonus, keeps the operator fit
Best regards
Jens
Except for exotic one-offs, twin-engined commercially produced 4-wheel tractors are rare. As high-power tractors are available from most of the well-known manufacturers today, there is probably no need for them now. In the 1950s and 1960s, things were different, and this led companies like Ernest Doe & Sons in the United Kingdom to link two tractors together, and thereby create a twin-engined, articulated and 4-wheel-driven tractor with twice the power of the traditional tractors on the market at that time.
I have never seen a commercially produced twin-engined 2-wheel tractor, but one is coming close:
In the alpine regions of central Europe, a handful of companies are producing 2-wheel tractors for professional users like farmers and public authorities. One of these - Brielmaier - offers the possibility to attach two 2-wheel tractors to the same implement! A number of videos on YouTube shows this impressive setup:
https://www.youtube.com/watch?v=A5WBVOzKoIw
The video above shows the tractor(s) mowing on a slope with a gradient up to 112% (48 degrees) with a 6 m (20 feet) wide sickle mower. One of the tractors are the "master" and the other one follows commands through a simple electrically connection. The tractors can be operated normally via the controls of the master, or remotely via a small remote control. Depending on the nature and size of the field, using the remote control can reduce the walking distance to less than half of normal.
Another video - made by an independent agricultural magazine - shows a comparison with the 100 hp conventional tractor that the farmer normally uses on his field:
https://www.youtube.com/watch?v=LzJsOKQAWdA
The farmer in this case, uses a 3 m (10 feet) mower, as experience has shown him that a heavier one cannot cope with the slope. The speaker tells that the 2-wheel tractor can mow almost twice as fast as the normal tractor, for less than half the fuel.
Another test shows, that it is possible to mow up to 3-4 ha/hour (7.5-10 acre/hour) with a gasoline/petrol consumption of 1.6 l/ha (0.17 US gallon/acre).
An interesting use of 2-wheel tractors, that as an extra bonus, keeps the operator fit
Best regards
Jens
