5 material differences · fewer than 12
Tractor oneHermann Lanz D 301956–1960No measured PTO figureTractor twoHürlimann D-501948–1952No measured PTO figure
Which should you choose?
We will not advise between these two machines, because they were not built in overlapping years (1956–1960; 1948–1952). 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
5 material differences · 4 fields identical or within 5%, which is not counted as material
| Field | D 30 | D-50 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 27.5 hp | 27.6 hp | — |
| Engine declared | Hela AZ 1 | Hürlimann D-50 | differs |
| Displacement declared | — | 2.55 L | — |
| Maximum torque declared | — | 85 lb·ft · 116 N·m | — |
| Transmission | |||
| Top speed declared | 12.3 mph · 19.8 km/h | 12.4 mph · 20 km/h | — |
| Clutch declared | single-plate dry clutch | Pedal operated dry single plate clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 9.0 gpm · 34.0 L/min | — | — |
| Rear PTO speeds declared | 572 rpm | 540 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 3,671 lb · 1,665 kg | 3,825 lb · 1,735 kg | — |
| Wheelbase declared | 74.8 in · 1,900 mm | — | — |
| Length declared | 122.0 in · 3,100 mm | 94.5 in · 2,400 mm | +29% D 30 |
| Width declared | 61.0 in · 1,550 mm | 59.1 in · 1,500 mm | — |
| Ground clearance declared | 12.6 in · 320 mm | — | — |
| Turning radius, braked declared | 9.8 ft · 3.00 m | 8.2 ft · 2.50 m | +20% D 30 |
| Fuel tank declared | 52.8 qt · 50 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.
Hermann Lanz D 30 sources
- Source: Traktorenlexikon, “HELA D30”
Hürlimann D-50 sources
- Source: Traktorenlexikon, “Hürlimann D 50”