Introduction
Hart-Parr 30 agricultural tractor
The Hart-Parr 30 is a standard-tread tractor produced between 1919 and 1924 in Charles City, Iowa, USA. As a representative model of early 20th-century agricultural mechanization, it was designed to provide reliable draft power for farming operations.
Engine and Performance
The tractor is powered by a liquid-cooled, two-cylinder gasoline engine with a displacement of 464.6 cubic inches (7.6 liters). It operates at a rated speed of 750 RPM, featuring a bore and stroke of 6.50 by 7.00 inches (165 by 178 mm). This configuration generates 33 horsepower, which was intended to meet the traction requirements of contemporary agricultural implements.
Transmission and Mechanical Systems
The powertrain utilizes a gear-type transmission providing two forward speeds and one reverse gear. Power is delivered to the wheels through bull gear final drives. The machine operates with a two-wheel drive configuration and relies on a manual steering system, requiring physical input from the operator to navigate the field.
Dimensions and Construction
The Hart-Parr 30 features an open operator station design. It measures 141 inches (358 cm) in length, 76 inches (193 cm) in width, and 61 inches (154 cm) in height. The operating weight is 5,450 lbs (2,472 kg). It is equipped with steel wheels, specifically 28x5 in the front and 52x10 in the rear, reflecting the standard wheel equipment for tractors of that era.
Conclusion
The Hart-Parr 30 stands as a significant example of post-WWI agricultural engineering. With its 33-horsepower engine and straightforward mechanical design, it served as a primary workhorse for farms requiring robust and serviceable machinery during the early 1920s.
Production Information of Hart-Parr, 30
- Original price was $1,395 in 1924
- Standard-tread tractor
- Built in Charles City, Iowa, USA
| Manufacturer | Hart-Parr |
|---|
Dimension and Tires Information of Hart-Parr, 30
| Length | 141 inches [358 cm] |
|---|---|
| Operating weight | 5450 lbs [2472 kg] |
| Width | 76 inches [193 cm] |
| Height | 61 inches [154 cm] |
| Ag front | 28x5 (steel) |
|---|---|
| Ag rear | 52x10 (steel) |
Engine Specifications of Hart-Parr, 30
- Hart-Parr
- Liquid-cooled
- Gasoline
- 2-cylinder
| Rated RPM | 750 |
|---|---|
| Displacement | 464.6 ci [7.6 L] |
| Bore/Stroke | 6.50x7.00 inches [165 x 178 mm] |
Transmission Information of Hart-Parr, 30
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 2 forward and 1 reverse |
Mechanical Specs of Hart-Parr, 30
- Two-wheel drive
- Open operator station.
- Manual steering
| Final drives | Bull gear |
|---|
Power Information of Hart-Parr, 30
- Https://www.tractordata.com/farm-tractors/002/9/4/2949-hart-parr-30-tests.html
Where it sits
Its power puts it in the 66th percentile of 1910s models in our database (158 machines).
Frequently asked questions
How much horsepower does the Hart-Parr 30 have?
The Hart-Parr 30 delivers 33 hp[B] HP.
What years was the Hart-Parr 30 produced?
The Hart-Parr 30 was produced in 1919-1924.
What engine does the Hart-Parr 30 have?
The Hart-Parr 30 is powered by a Gasoline, 2-cylinder engine.
What transmission does the Hart-Parr 30 use?
The Hart-Parr 30 uses a Gear transmission.
How much does the Hart-Parr 30 weigh?
The Hart-Parr 30 weighs 5450 lbs [2472 kg].
Is the Hart-Parr 30 4WD?
The Hart-Parr 30 is available in 2WD.