9 material differences · fewer than 12
Tractor oneAllgaier R181946–1952No measured PTO figureTractor twoALLIS-CHALMERS Modell-C1940–1950No measured PTO figure
Which should you choose?
Read our verdict on the R18 and the Modell-C → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
9 material differences · 1 fields identical or within 5%, which is not counted as material
| Field | R18 | Modell-C | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 17.7 hp | 18.2 hp | — |
| Transmission | |||
| Top speed declared | 11.8 mph · 19 km/h | 7.5 mph · 12 km/h | +58% R18 |
| Clutch declared | Single dry clutch | Foot-operated spring-loaded dry Rockford single-plate clutch | differs |
| Hydraulics & hitch | |||
| Rear PTO speeds declared | 540 rpm | 560 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 3,527 lb · 1,600 kg | 2,200 lb · 998 kg | +60% R18 |
| Wheelbase declared | 59.1 in · 1,500 mm | 77.0 in · 1,956 mm | +30% Modell-C |
| Length declared | 102.4 in · 2,600 mm | 110.2 in · 2,800 mm | +8% Modell-C |
| Width declared | 58.3 in · 1,480 mm | 68.5 in · 1,740 mm | +18% Modell-C |
| Ground clearance declared | 13.8 in · 350 mm | 23.0 in · 584 mm | +67% Modell-C |
| Turning radius, braked declared | 8.2 ft · 2.50 m | — | — |
| Fuel tank declared | 29.6 qt · 28 L | 57.7 qt · 54.6 L | +95% Modell-C |
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.
Allgaier R18 sources
- Source: Traktorenlexikon, “Allgaier R18”
ALLIS-CHALMERS Modell-C sources
- Source: Traktorenlexikon, “Allis-Chalmers Modell C”