Massey-Harris 44 Special

Last Updated: July 2024

Overview

The Massey-Harris 44 Special is a row-crop tractor designed for farm duties requiring a certain degree of maneuverability and versatility. As a 2WD tractor manufactured by Massey-Harris between 1953 and 1955, it came equipped with several engine variants, providing users with the flexibility to choose based on their preferred fuel type — gasoline, diesel, tractor fuel, or LP-gas. The tractor's core features included an unsynchronized gear transmission with five forward and one reverse gears, manual steering, and differential mechanical drum brakes. It utilized a straightforward liquid-cooling system to maintain engine operation efficiency and featured a robust 4-cylinder engine. This particular model was known for its capability and straightforward operation, serving as a reliable tool for a variety of farm tasks. Based on independent test results, the engine power output has been updated to 41.67 HP, and additional performance details have been added to the specifications.
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Key Specifications

Category: Row Crop

Power Output: 41.67

Transmission: Unsynchronized gear

Drive Type: 2WD

Fuel Type: Gasoline, Diesel, Tractor fuel/LP-gas

Massey-Harris 44 Special vs. Similar Tractors

Power Output
Poor
Greater than 3% of similar tractors.

Technical Specifications

Engine

Manufacturer
Massey-Harris, Continental (Diesel Variant)
Model
-
Cooling Type
Liquid-cooled
Cylinder Orientation
Inline
Valve Configuration
-
Fuel Type
Gasoline, Diesel, Tractor fuel/LP-gas
Induction Type
Naturally aspirated
Cylinders
4
Displacement (ci)
277 (Gasoline), 259.4 (Diesel and LP-gas/Tractor fuel)
Bore (in)
Gasoline: 4.02, Diesel and LP-gas/Tractor fuel: 3.86
Stroke (in)
5.51
Rated RPM
Gasoline: 1350, Diesel: 1500
Power Output (hp)
41.67

Transmission

Type
Unsynchronized gear
Forward Gears
5
Reverse Gears
1
Total Gears
-

Dimensions

Length (in)
135
Width (in)
78.7
Height (in)
79.9
Operating Weight (lb)
-

Power Take-Off (PTO)

PTO Type
Live
PTO Speed 1 (rpm)
534
PTO Speed 2 (rpm)
-
PTO Speed 3 (rpm)
-

Miscellaneous

Chassis
4x2 2WD
Drive Type
2WD
Steering Type
Manual worm-and-sector
Coolant Capacity (qts)
22
Front Tire Diameter (in)
-
Front Tire Width (in)
6.5
Rear Tire Diameter (in)
-
Rear Tire Width (in)
11-38, 12-38, 13-38
Front/Rear Rim Diameter (in)
-
Tire Type
Agricultural
Manufacture - End Year
1955
Hitch Type
Massey Hitch-All
Hitch Category
-
Hitch Position
-
Hitch Capacity (lb)
-
Operator Station Type
Open
Starter Type
Electric
Brake Type
Differential mechanical drum
Hydraulic System Type
-

Test Results

Nebraska Tractor Test Laboratory - Test Date: October 9, 1953

Maximum Power and Fuel Consumption

  • Maximum Power: 41.67 HP (31.06 kW) at 1500 rpm
  • Fuel Consumption at Maximum Power: 3.42 Gal/hr (12.95 l/h) with a fuel efficiency of 0.506 lb/hp.hr (0.307 kg/kW.h)

Drawbar Performance

  • Power at Rated Engine Speed: 36.56 HP (27.26 kW) with a drawbar pull of 4991 lbs (22.2 kN) and a speed of 3.34 mph (5.37 km/h)
  • Fuel Consumption at Rated Speed: 0.661 lb/hp.hr (0.402 kg/kW.h) with a fuel efficiency of 7.16 Hp.hr/gal (1.41 kW.h/l)

Torque and Engine Performance

  • Maximum Torque: Not specified
  • Torque Rise: Not specified

Hydraulic Performance

  • Maximum Force Exerted: Not specified
  • Pump Delivery Rate: Not specified
  • Hydraulic Power: Not specified

Overall Efficiency

  • Fuel Efficiency at Standard PTO Speed: Not specified
  • Fuel Consumption: Not specified



NTTL.(1953). Nebraska Tractor test 510 for Massey-Harris 44 Special. Lincoln, NE: Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/1016

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