John Deere R vs SOMECA SOM-50
10 material differences · fewer than 12
Which should you choose?
We will not advise between these two machines, because their unladen weight differs by more than 25% (46%); they were not built in overlapping years (1949–1954; 1961–1963). The figures below are side by side so you can judge them yourself; each says whether it was measured, claimed or declared by its source.
Field by field
10 material differences · 2 fields identical or within 5%, which is not counted as material
| Field | R | SOM-50 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 48.7 hp | 49.3 hp | — |
| Engine declared | John Deere R-1358 | O.M.-FIAT CO 1D/50 | differs |
| Displacement declared | 6.81 L | 4.16 L | +64% R |
| Maximum torque declared | — | 177 lb·ft · 240 N·m | — |
| Transmission | |||
| Top speed declared | 11.2 mph · 18 km/h | 14.3 mph · 23 km/h | +28% SOM-50 |
| Clutch declared | Hand lever operated dry JOHN DEERE double plate clutch | Pedal operated two stage dry FERODO double clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | — | 5.3 gpm · 20.0 L/min | — |
| Three-point lift at ends declared | — | 2,094 lb · 950 kg | — |
| Rear PTO speeds declared | 536 rpm | 540 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 7,401 lb · 3,357 kg | 5,071 lb · 2,300 kg | +46% R |
| Wheelbase declared | 85.1 in · 2,162 mm | 74.8 in · 1,900 mm | +14% R |
| Length declared | 147.0 in · 3,734 mm | 125.2 in · 3,180 mm | +17% R |
| Width declared | 79.5 in · 2,019 mm | 60.4 in · 1,535 mm | +32% R |
| Height declared | 78.1 in · 1,984 mm | 74.6 in · 1,895 mm | — |
| Ground clearance declared | — | 23.1 in · 587 mm | — |
| Turning radius, braked declared | — | 10.8 ft · 3.30 m | — |
| Fuel tank declared | 88.0 qt · 83.3 L | 53.9 qt · 51.0 L | +63% R |
John Deere R sources
Source
- Source: Traktorenlexikon, “John Deere Modell R”
SOMECA SOM-50 sources
Source
- Source: Traktorenlexikon, “Someca SOM 50”