Introduction
Hart-Parr 28-50 Standard-Tread Tractor
The Hart-Parr 28-50 is a standard-tread agricultural tractor manufactured between 1927 and 1930 in Charles City, Iowa, USA. Recognized as a significant machine of its era, it was designed for heavy-duty field performance and represents a notable chapter in American agricultural engineering.
Engine and Performance
The tractor is powered by a 4-cylinder, liquid-cooled gasoline engine. With a displacement of 675.1 cubic inches (11.1 liters) and a bore/stroke of 146 x 165 mm, the engine produces 55 horsepower at a rated speed of 850 RPM. The intake system utilizes a dry-type air cleaner to maintain engine efficiency.
Transmission and Drivetrain
The power is delivered through a gear-type transmission offering two forward speeds and one reverse speed. It features a mechanical dry disc clutch for engagement, providing the operator with direct control over the power delivery during field operations.
Mechanical Configuration and Dimensions
The Hart-Parr 28-50 is a two-wheel-drive machine featuring manual steering and an open operator station. The tractor weighs approximately 8,600 lbs (3,900 kg). It is equipped with steel agricultural wheels, featuring 28x7 dimensions on the front and 51x14 dimensions on the rear, ensuring traction and stability for its intended agricultural applications.
Conclusion
The Hart-Parr 28-50 serves as a robust example of late 1920s tractor design. With its substantial displacement and steel-wheel configuration, it was engineered for durability and consistent performance, making it a valuable subject for agricultural history enthusiasts and machinery collectors.
Production Information of Hart-Parr, 28-50
- Original price was $2,085 in 1930
- Standard-tread tractor
- Built in Charles City, Iowa, USA
| Manufacturer | Hart-Parr |
|---|
Dimension and Tires Information of Hart-Parr, 28-50
| Weight | 8600 lbs [3900 kg] |
|---|
| Ag front | 28x7 steel |
|---|---|
| Ag rear | 51x14 steel |
Engine Specifications of Hart-Parr, 28-50
- Hart-Parr
- Liquid-cooled
- Gasoline
- 4-cylinder
| Air cleaner | Dry |
|---|---|
| Displacement | 675.1 ci [11.1 L] |
| Rated RPM | 850 |
| Bore/Stroke | 5.75x6.50 inches [146 x 165 mm] |
Transmission Information of Hart-Parr, 28-50
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 2 forward and 1 reverse |
| Clutch | Mechanical dry disc |
Mechanical Specs of Hart-Parr, 28-50
- Two-wheel drive
- Manual steering
- Open operator station.
Power Information of Hart-Parr, 28-50
- Https://www.tractordata.com/farm-tractors/002/9/5/2955-hart-parr-28-50-tests.html
Where it sits
With 55 hp[B] HP, the Hart-Parr 28-50 sits between 22-45 (50 HP) and Old Reliable 30-60 (66 HP) in Hart-Parr's range. Its power puts it in the 90th percentile of 1920s models in our database (181 machines).
Frequently asked questions
How much horsepower does the Hart-Parr 28-50 have?
The Hart-Parr 28-50 delivers 55 hp[B] HP.
What years was the Hart-Parr 28-50 produced?
The Hart-Parr 28-50 was produced in 1927-1930.
What engine does the Hart-Parr 28-50 have?
The Hart-Parr 28-50 is powered by a Gasoline, 4-cylinder engine.
What transmission does the Hart-Parr 28-50 use?
The Hart-Parr 28-50 uses a Gear transmission.
How much does the Hart-Parr 28-50 weigh?
The Hart-Parr 28-50 weighs 8600 lbs [3900 kg].
Is the Hart-Parr 28-50 4WD?
The Hart-Parr 28-50 is available in 2WD.