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Allis ChalmersModel A
Allis Chalmers UC
Row Crop
- power
- 30.9 hp
- displacement
- 302 ci
- Cylinders
- 4
- Forward gears
- 4
Head to head · Row Crop
Allis Chalmers UC vs John Deere A (1939-1947)
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John DeereModel B
John Deere A (1939-1947)
Row Crop
- power
- 18 hp
- displacement
- 309 ci
- Cylinders
- 2
- Forward gears
- 6
Allis ChalmersAllis Chalmers UC
vs
John DeereJohn Deere A (1939-1947)
How they compare
Headline specs vs. the whole Row Crop
Engine Power
▲ UC higher · +12.9 hp (+72%)UC30.9 hp
A (1939-1947)18 hp
Median Row Crop Tractor138 hp
UC is in the 3rd percentile; A (1939-1947) is in the 1st · 1,206 models
Engine Displacement
▲ A (1939-1947) higher · +7 ci (+2%)UC302 ci
A (1939-1947)309 ci
Median Row Crop Tractor391 ci
UC is in the 33rd percentile; A (1939-1947) is in the 33rd · 1,409 models
Cylinders
▲ UC higher · +2 (+100%)UC4
A (1939-1947)2
Median Row Crop Tractor6
UC is in the 17th percentile; A (1939-1947) is in the 1st · 1,417 models
Forward Gears
▲ A (1939-1947) higher · +2 (+50%)UC4
A (1939-1947)6
Median Row Crop Tractor16
UC is in the 4th percentile; A (1939-1947) is in the 11th · 1,200 models
UC (A)A (1939-1947) (B)Median Row Crop Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers UC | John Deere A (1939-1947) | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | John Deere | — |
| Model | UC | A (1939-1947) | — |
| Category | Row Crop | Row Crop | Same |
Engine
| Spec | Allis Chalmers UC | John Deere A (1939-1947) | Difference |
|---|---|---|---|
| Manufacturer | Allis-Chalmers | John Deere | — |
| Model | Not recorded | John Deere | — |
| Power Output | 30.9hp | 18hp | ▲ UC+12.9 hp · +72% |
| Rated RPM | 1,200RPM | 975RPM | ▲ UC+225 RPM · +23% |
| Cylinders | 4 | 2 | ▲ UC+2 · +100% |
| Displacement | 302ci | 309ci | ▲ A (1939-1947)+7 ci · +2% |
| Bore | 4.4in | 5.5in | ▲ A (1939-1947)+1.1 in · +25% |
| Stroke | 5in | 6.5in | ▲ A (1939-1947)+1.5 in · +30% |
Transmission
| Spec | Allis Chalmers UC | John Deere A (1939-1947) | Difference |
|---|---|---|---|
| Type | Non-synchronized gear | Unsynchronized gear | — |
Dimensions & Weight
| Spec | Allis Chalmers UC | John Deere A (1939-1947) | Difference |
|---|---|---|---|
| Length | 145in | 134in | ▲ UC+11 in · +8% |
| Width | 81in | 86.2in | ▲ A (1939-1947)+5.2 in · +6% |
| Height | 69.5in | 63.8in | ▲ UC+5.7 in · +9% |
| Operating Weight | 5,710lb | 4,597lb | ▲ UC+1,113 lb · +24% |
Hydraulics
| Spec | Allis Chalmers UC | John Deere A (1939-1947) | Difference |
|---|---|---|---|
| Steering Type | Not recorded | Manual | — |
Power Take-off (PTO)
| Spec | Allis Chalmers UC | John Deere A (1939-1947) | Difference |
|---|---|---|---|
| Type | Not recorded | Transmission PTO | — |
| Speed 1 | Not recorded | 540rpm | — |
Chassis & Drive
| Spec | Allis Chalmers UC | John Deere A (1939-1947) | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | 4x2 | — |
| Drive Type | 2WD | 2WD | Same |
| Steering Type | Not recorded | Manual | — |
| Brake Type | Not recorded | Differential mechanical expanding shoe | — |
Electrical
| Spec | Allis Chalmers UC | John Deere A (1939-1947) | Difference |
|---|---|---|---|
| Starter Type | Not recorded | Manual | — |
Capacities
| Spec | Allis Chalmers UC | John Deere A (1939-1947) | Difference |
|---|---|---|---|
| Coolant | 6gal | 9.5gal | ▲ A (1939-1947)+3.5 gal · +58% |
Operator Station
| Spec | Allis Chalmers UC | John Deere A (1939-1947) | Difference |
|---|---|---|---|
| Type | Not recorded | Open | — |
Category context
Both models against the field
Engine Power
median 138 hpA · 3rd percentile (30.9 hp)B · 1st percentile (18 hp)
Engine Displacement
median 391 ciA · 33rd percentile (302 ci)B · 33rd percentile (309 ci)
Cylinders
median 6A · 17th percentile (4)B · 1st percentile (2)
Forward Gears
median 16A · 4th percentile (4)B · 11th percentile (6)
Operating Weight
median 12,307 lbA · 11th percentile (5,710 lb)B · 7th percentile (4,597 lb)
A · UCB · A (1939-1947)Median Row Crop Tractor