| Manufacturer |
Avery |
| Price |
- |
| Model |
40-80 |
| Equipment Type |
- |
| Factory |
Peoria, Illinois |
NEBRASKA TRACTOR TEST 44
| Description |
Kerosene 2-speed 2WD July 26 - August 3, 1920 Link: Nebraska Tractor Test 44 file Drawbar performance Gear 1 used for power test Gear 1 used for pull test |
| Belt power (max) |
69.23 hp / 51.6 kW |
| Belt fuel use (max) |
8.4 gal/hour / 31.8l/hour |
| Max power |
49.97hp / 37.3kW |
| Max pull |
8475lbs / 3844kg |
AVERY 40-80 POWER
| Drawbar (claimed) |
40hp / 29.8kW |
| Belt (claimed) |
80hp / 59.7kW |
| Drawbar (tested) |
49.97hp / 37.3kW |
| Belt (tested) |
69.23hp / 51.6kW |
ENGINE DETAIL
The Avery 40-80 tractor features a robust 4-cylinder kerosene engine with a significant displacement of 1509.5 cubic inches (24.7 liters), which enhances torque production for heavy-duty applications. Its bore and stroke of 7.75x8.00 inches (197 x 203 mm) indicate a design favoring low RPM performance, with a rated speed of only 500 RPM, making it ideal for tasks that require sustained power rather than rapid acceleration. However, the substantial coolant capacity of 360 quarts (340.7 liters) can be both an advantage for thermal regulation in demanding conditions and a challenge in terms of maintenance and weight management.
| Description |
Avery kerosene 4-cylinder liquid-cooled opposed horizontal |
| Displacement |
1509.5ci / 24.7L |
| Bore/Stroke |
7.75x8.00inches / 197 x 203mm |
| Rated RPM |
500 |
| Coolant capacity |
360qts / 340.7L |
AVERY 40-80 ENGINE
The Avery 40-80 tractor, powered by a 24.7L 4-cylinder kerosene engine, offers robust performance suited for heavy-duty applications. The main fuel tank capacity of 44 gallons (166.5L) enables extended operation without frequent refueling, while the auxiliary fuel tank of 6.75 gallons (25.5L) provides additional flexibility for longer tasks. Challenges may include the availability of kerosene fuel in certain regions and potential maintenance complexity due to the engine's size, making it crucial to assess usage scenarios and fuel logistics.
| Description |
Avery 24.7L 4-cyl kerosene |
| Fuel tank |
44gal / 166.5L |
| Aux. fuel |
6.75gal / 25.5L |
TRANSMISSION
The Avery 40-80 tractor features a simple transmission with two forward gears and one reverse gear, optimizing it for basic agricultural tasks and maneuverability in tight spaces. Its [-|-] gear type may provide straightforward operation but could limit power transfer efficiency compared to more advanced gear systems. Ideal for small farms or vintage machinery enthusiasts, its simplicity may also pose challenges in performance on larger, more demanding tasks.
| Type |
gear |
| Gears |
2 forward and 1 reverse |
MECHANICAL
The Avery 40-80 tractor features manual steering, which enhances operator feedback but can result in increased physical effort, particularly in tight maneuvers. The steel cab offers durability and protection from environmental elements, though it may add weight impacting overall maneuverability. The 2-speed gear transmission provides versatility in operational speed, ideal for varied tasks but may limit performance at extreme gradients or heavy-load scenarios compared to more advanced transmission systems.
| Steering |
manual |
| Cab |
Steel cab |
| Transmission |
2-speed gear |
AVERY 40-80 TIRES
The Avery 40-80 tractor features heavy-duty steel agricultural wheels, with a front size of 42x16 inches and rear size of 87.5x24 inches, providing enhanced stability and traction in varied field conditions. The larger rear tires increase weight distribution and reduce soil compaction, which is beneficial for crop health. However, the overall weight and size could pose challenges in maneuverability in tight spaces or when working on uneven terrain.
| Ag front |
42x16 steel |
| Ag rear |
87.5x24 steel |
DIMENSIONS
| Length |
215inches / 546cm |
| Width |
111.5inches / 283cm |
| Height |
121inches / 307cm |
| Weight |
22000lbs / 9979kg |
DIMENSIONS & TIRES
The Avery 40-80 tractor, weighing 22,000 lbs (9,979 kg), combines significant power with robust stability, ideal for heavy-duty applications in agriculture. The large rear tires (87.5x24) enhance traction and reduce soil compaction, which is advantageous for field work but may pose challenges in maneuverability on uneven terrain. The front tires (42x16) provide good steering control; however, their smaller size compared to the rear may lead to a slight imbalance when loaded heavily at the rear, necessitating careful weight distribution during operation.
| Weight |
22000lbs / 9979kg |
| Front tire |
42x16 |
| Rear tire |
87.5x24 |
40-80 SERIAL NUMBERS
