Introduction
Rock Island G2 15-25: A Standard-Tread Agricultural Tractor
The Rock Island G2 15-25 is a standard-tread tractor produced between 1929 and 1932 in Rock Island, Illinois, USA. As a representative machine of its era, it was designed for general agricultural utility and field work, reflecting the mechanical standards of early 20th-century farm machinery.
Engine and Performance
The tractor is powered by a Waukesha 4-cylinder, liquid-cooled engine designed to operate on kerosene. With a displacement of 326 cubic inches (5.3 liters) and a bore and stroke measurement of 4.25 by 5.75 inches, the engine achieves a rated speed of 1100 RPM. This configuration produces approximately 27 horsepower, providing the necessary torque for traditional farming tasks of the period.
Transmission and Mechanical Layout
The powertrain features an unsynchronized gear transmission system, consisting of 2 forward gears and 1 reverse gear. This manual transmission requires operator skill for gear shifting. The tractor utilizes a two-wheel drive configuration and is controlled via a manual steering system, housed within an open operator station.
Dimensions and Construction
Built with a focus on structural durability, the Rock Island G2 15-25 has a total weight of 4,200 lbs (1,905 kg). As a standard-tread tractor, its design emphasizes stability and traction, characteristic of the utility tractors manufactured by Rock Island during the late 1920s and early 1930s.
Conclusion
The Rock Island G2 15-25 stands as a significant example of American tractor manufacturing from the early 1930s. Its robust mechanical design, centered on a reliable Waukesha engine and a simple manual transmission, makes it a noteworthy subject for historical preservation and agricultural machinery collections.
Production Information of Rock Island, G2 15-25
- Standard-tread tractor
- Built in Rock Island, Illinois, USA
| Manufacturer | Rock Island |
|---|
Dimension and Tires Information of Rock Island, G2 15-25
| Weight | 4,200 lbs [1905 kg] |
|---|
Engine Specifications of Rock Island, G2 15-25
- Waukesha
- Liquid-cooled
- Kerosene
- 4-cylinder
| Rated RPM | 1100 |
|---|---|
| Displacement | 326 ci [5.3 L] |
| Bore/Stroke | 4.25x5.75 inches [108 x 146 mm] |
Transmission Information of Rock Island, G2 15-25
Transmission variants 1
| Type | Unsynchronized gear |
|---|---|
| Gears | 2 forward and 1 reverse |
Mechanical Specs of Rock Island, G2 15-25
- Two-wheel drive
- Open operator station.
| Steering | Manual |
|---|
Power Information of Rock Island, G2 15-25
- Https://www.tractordata.com/farm-tractors/006/9/3/6937-rock-island-g2-15-25-tests.html
Where it sits
Its power puts it in the 34th percentile of 1920s models in our database (181 machines).
Frequently asked questions
How much horsepower does the Rock Island G2 15-25 have?
The Rock Island G2 15-25 delivers 27 hp[B] HP.
What years was the Rock Island G2 15-25 produced?
The Rock Island G2 15-25 was produced in 1929-1932.
What engine does the Rock Island G2 15-25 have?
The Rock Island G2 15-25 is powered by a 4-cylinder engine.
What transmission does the Rock Island G2 15-25 use?
The Rock Island G2 15-25 uses a Unsynchronized gear transmission.
How much does the Rock Island G2 15-25 weigh?
The Rock Island G2 15-25 weighs 4,200 lbs [1905 kg].
Is the Rock Island G2 15-25 4WD?
The Rock Island G2 15-25 is available in 2WD.