8 material differences · fewer than 12
Tractor oneFiat 45-Rfrom 1952No measured PTO figureTractor twoURSUS C-451947–1959No measured PTO figure
Which should you choose?
We will not advise between these two machines, because their unladen weight differs by more than 25% (63%). 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
8 material differences · 1 fields identical or within 5%, which is not counted as material
| Field | 45-R | C-45 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 44.4 hp | 44 hp | — |
| Engine declared | O.M.-FIAT CO 1D-45/Var. 10 | — | — |
| Displacement declared | 4.16 L | — | — |
| Maximum torque declared | 167 lb·ft · 226 N·m | — | — |
| Transmission | |||
| Top speed declared | 9.9 mph · 16 km/h | 3.9–10.4 mph · 6.2–16.7 km/h | differs |
| Clutch declared | Pedal-operated dry single-plate clutch | Mechanically-operated dry double-plate clutch, mounted on the right journal of the crankshaft | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 5.3 gpm · 20.0 L/min | — | — |
| Rear PTO speeds declared | 540 rpm | 630 | differs |
| Weight & dimensions | |||
| Unladen weight declared | 5,071 lb · 2,300 kg | 8,267–8,433 lb · 3,750–3,825 kg | differs |
| Wheelbase declared | 74.8 in · 1,900 mm | 80.1 in · 2,035 mm | +7% C-45 |
| Length declared | 116.3 in · 2,955 mm | — | — |
| Width declared | 60.4–91.9 in · 1,535–2,335 mm | 70.9 in · 1,800 mm | differs |
| Ground clearance declared | 15.7 in · 400 mm | 8.7 in · 220 mm | +82% 45-R |
| Turning radius, braked declared | 10.8 ft · 3.30 m | — | — |
| Fuel tank declared | 53.9 qt · 51.0 L | 100.4 qt · 95.0 L | +86% C-45 |
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.
Fiat 45-R sources
- Source: Traktorenlexikon, “Fiat 45 R”
URSUS C-45 sources
- Source: Wikipedia (pl): Ursus C-45 (open data)
- Source: Traktorenlexikon, “Ursus C-45”