Allis-Chalmers Model G
Encyclopedia
The Model G is a small implement carrier tractor that was made by the Allis-Chalmers Manufacturing Company. At the time of its introduction the Model G was unique for its rear-mounted, Continental
N62 engine. It was a four-cylinder engine with a 2⅜ × 3½ inch bore and stroke. The Model G was designed for small farms and vegetable gardeners, and had its own line of implements
specifically designed for it, including plough
s, planters, and cultivator
s. The design of the Model G allowed for a great view of the belly-mounted implements. David Brown Ltd.
in the UK introduced a very similar tractor
in the mid 1950s called the 2D where the tubular frame acted as an air receiver for the compressed air implement lifting system. David Brown were also disappointed with the number of sales.
, from 1948 to 1955. 29,976 units were built, which is less than Allis-Chalmers had originally hoped for. The Model G had a 5 gallon fuel tank, weighed 1,285 pounds, and was rated at 10 drawbar
horsepower (Tested at 10.33 belt and 9.04 drawbar). The engine had a displacement of 62 cubic inches and was rated at 1800 RPMs. The transmission
was a non-synchronized three speed with reverse.
replaces the original engine and bolts directly to the transmission housing through a commercially available adapter plate. A contactor
and electronic motor controller
are typically mounted to the same plate. Batteries are mounted in a box above the motor, where they are easily accessible for routine maintenance. The overall weight distribution mimics the tail-heavy design of the original tractor power train, which requires a visible nose counterweight. Over 100 Allis Chalmers model G tractors are known to have been converted as of 2009. The original prototype "flying beet" conversion, which was partially funded by a USDA SARE
grant, is still in use at the Hugenot Farms in New Paltz, NY, USA.
Continental Motors Company
Continental Motors Company was an American engine and automobile manufacturer. The company produced engines for various independent manufacturers of automobiles, tractors, and stationary equipment from the 1900s through the 1960s. Continental Motors also produced Continental-branded automobiles in...
N62 engine. It was a four-cylinder engine with a 2⅜ × 3½ inch bore and stroke. The Model G was designed for small farms and vegetable gardeners, and had its own line of implements
Agricultural machinery
Agricultural machinery is machinery used in the operation of an agricultural area or farm.-Hand tools:The first person to turn from the hunting and gathering lifestyle to farming probably did so by using his bare hands, and perhaps some sticks or stones. Tools such as knives, scythes, and wooden...
specifically designed for it, including plough
Plough
The plough or plow is a tool used in farming for initial cultivation of soil in preparation for sowing seed or planting. It has been a basic instrument for most of recorded history, and represents one of the major advances in agriculture...
s, planters, and cultivator
Cultivator
A cultivator is any of several types of farm implement used for secondary tillage. One sense of the name refers to frames with teeth that pierce the soil as they are dragged through it linearly. Another sense refers to machines that use rotary motion of disks or teeth to accomplish a similar result...
s. The design of the Model G allowed for a great view of the belly-mounted implements. David Brown Ltd.
David Brown Ltd.
David Brown Engineering Limited is a British engineering company, principally engaged in the manufacture of gears and gearboxes. Their major gear manufacturing plant is in Swan Lane, Lockwood, Huddersfield, adjacent to Lockwood railway station...
in the UK introduced a very similar tractor
Tractor
A tractor is a vehicle specifically designed to deliver a high tractive effort at slow speeds, for the purposes of hauling a trailer or machinery used in agriculture or construction...
in the mid 1950s called the 2D where the tubular frame acted as an air receiver for the compressed air implement lifting system. David Brown were also disappointed with the number of sales.
Details
The Model G was manufactured solely in the factory in Gadsden, AlabamaGadsden, Alabama
The city of Gadsden is the county seat of Etowah County in the U.S. state of Alabama, and it is located about 65 miles northeast of Birmingham, Alabama. It is the primary city of the Gadsden Metropolitan Statistical Area, which has a population of 103,459. Gadsden is closely associated with the...
, from 1948 to 1955. 29,976 units were built, which is less than Allis-Chalmers had originally hoped for. The Model G had a 5 gallon fuel tank, weighed 1,285 pounds, and was rated at 10 drawbar
Drawbar (haulage)
A drawbar is a solid coupling between a hauling vehicle and its hauled load. Drawbars are in common use with rail transport, road trailers, both large and small, industrial and recreational, and with agricultural equipment.-Agriculture:...
horsepower (Tested at 10.33 belt and 9.04 drawbar). The engine had a displacement of 62 cubic inches and was rated at 1800 RPMs. The transmission
Transmission (mechanics)
A machine consists of a power source and a power transmission system, which provides controlled application of the power. Merriam-Webster defines transmission as: an assembly of parts including the speed-changing gears and the propeller shaft by which the power is transmitted from an engine to a...
was a non-synchronized three speed with reverse.
Electric conversions
The unique design of the Model G lends itself extremely well to electric vehicle conversion; a small DC electric motorElectric motor
An electric motor converts electrical energy into mechanical energy.Most electric motors operate through the interaction of magnetic fields and current-carrying conductors to generate force...
replaces the original engine and bolts directly to the transmission housing through a commercially available adapter plate. A contactor
Contactor
A contactor is an electrically controlled switch used for switching a power circuit, similar to a relay except with higher current ratings. A contactor is controlled by a circuit which has a much lower power level than the switched circuit....
and electronic motor controller
Motor controller
A motor controller is a device or group of devices that serves to govern in some predetermined manner the performance of an electric motor. A motor controller might include a manual or automatic means for starting and stopping the motor, selecting forward or reverse rotation, selecting and...
are typically mounted to the same plate. Batteries are mounted in a box above the motor, where they are easily accessible for routine maintenance. The overall weight distribution mimics the tail-heavy design of the original tractor power train, which requires a visible nose counterweight. Over 100 Allis Chalmers model G tractors are known to have been converted as of 2009. The original prototype "flying beet" conversion, which was partially funded by a USDA SARE
Sustainable agriculture research and education
Sustainable Agriculture Research and Education or is a part of the USDA's Cooperative State Research, Education, and Extension Service. SARE is a granting organization that tries to promote environmentally friendly agriculture and help small farmers become more profitable. Having profitable small...
grant, is still in use at the Hugenot Farms in New Paltz, NY, USA.
External links
- Allis-Chalmers Model G at tractordata.com
- ytmag.com
- Flying Beet Electric G