10 material differences · fewer than 12
Tractor oneALLIS-CHALMERS FD-51963–1965No measured PTO figureTractor twoSOMECA SOM-501961–1963No measured PTO figure
Which should you choose?
Read our verdict on the FD-5 and the SOM-50 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
10 material differences · 2 fields identical or within 5%, which is not counted as material
| Field | FD-5 | SOM-50 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 49.3 hp | 49.3 hp | — |
| Engine declared | VENDEUVRE 66 | O.M.-FIAT CO 1D/50 | differs |
| Displacement declared | — | 4.16 L | — |
| Maximum torque declared | 156 lb·ft · 212 N·m | 177 lb·ft · 240 N·m | +13% SOM-50 |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 14.3 mph · 23 km/h | +9% FD-5 |
| Clutch declared | Pedal-operated dry two-stage double clutch | Pedal operated two stage dry FERODO double clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | — | 5.3 gpm · 20.0 L/min | — |
| Rear PTO speeds declared | 540/1000 rpm | 540 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 5,412 lb · 2,455 kg | 5,071 lb · 2,300 kg | +7% FD-5 |
| Wheelbase declared | 89.8 in · 2,281 mm | 74.8 in · 1,900 mm | +20% FD-5 |
| Length declared | 129.9 in · 3,300 mm | 125.2 in · 3,180 mm | — |
| Width declared | 68.9 in · 1,750 mm | 60.4–91.9 in · 1,535–2,335 mm | differs |
| Ground clearance declared | 19.3 in · 490 mm | 23.1 in · 587 mm | +20% SOM-50 |
| Turning radius, braked declared | — | 10.8 ft · 3.30 m | — |
| Fuel tank declared | 74.0 qt · 70.0 L | 53.9 qt · 51.0 L | +37% FD-5 |
Height is not in this table. It is not one measurement: the sources measure it to different points — over the cab on some machines, over the steering wheel or the exhaust on others — and the same tractor measured two ways can differ by most of a metre. It appears here only when both machines' figures carry the point they were measured to and it is the same point, which is not the case for these two. Each machine's own page prints its height as its source gives it.
ALLIS-CHALMERS FD-5 sources
- Source: Traktorenlexikon, “Allis-Chalmers FD 5”
SOMECA SOM-50 sources
- Source: Traktorenlexikon, “Someca SOM 50”