8 material differences · fewer than 12
Tractor oneALLIS-CHALMERS Modell-WF1937–1951No measured PTO figureTractor twoHermann Lanz L 25 a1942–1944No measured PTO figure
Which should you choose?
We will not advise between these two machines, because their unladen weight differs by more than 25% (39%). 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 · 2 fields identical or within 5%, which is not counted as material
| Field | Modell-WF | L 25 a | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 24 hp | 24.4 hp | — |
| Engine declared | ALLIS-CHALMERS W-110 | Deutz GF2M 115 or wahlweise | differs |
| Displacement declared | 3.30 L | 3.98 L | +21% L 25 a |
| Transmission | |||
| Top speed declared | 9.9 mph · 16 km/h | 12.1 mph · 19.4 km/h | +21% L 25 a |
| Clutch declared | Foot-operated spring-loaded dry Rockford single-plate clutch | single-plate dry clutch from Fichtel & Sachs | differs |
| Hydraulics & hitch | |||
| Rear PTO speeds declared | 535 rpm | 540 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 3,490 lb · 1,583 kg | 4,850 lb · 2,200 kg | +39% L 25 a |
| Wheelbase declared | 70.0 in · 1,778 mm | 80.7 in · 2,050 mm | +15% L 25 a |
| Length declared | 122.0 in · 3,099 mm | 112.6 in · 2,860 mm | +8% Modell-WF |
| Width declared | 57.5 in · 1,461 mm | 59.1 in · 1,500 mm | — |
| Ground clearance declared | — | 11.8 in · 300 mm | — |
| Fuel tank declared | 59.9 qt · 56.7 L | — | — |
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 Modell-WF sources
- Source: Traktorenlexikon, “Allis-Chalmers WF”
- Source: Traktorenlexikon, “Allis-Chalmers WC”
Hermann Lanz L 25 a sources
- Source: Traktorenlexikon, “HELA L 25 a Holzgas”