Heinrich Lanz HN 5
3 models in this series
Heinrich Lanz HN 5 – the single-cylinder Bulldogs D 3500, D 3506 and D 3506 A from Mannheim: 4.8 litres displacement, 760 rpm, multi-fuel operation
The HN 5 belongs to the classic Lanz Bulldog ranges from Mannheim, where Heinrich Lanz built farm machinery from 1859 and, from 1921, the Bulldog with its characteristic single-cylinder two-stroke hot-bulb engine. The types listed here, the D 3500, D 3506 and D 3506 A, share the large horizontal single-cylinder of 4,767 cm³ displacement and the low speed typical of the Bulldog.
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The register lists here 3 versions with 12.4 to 14.6 kW from the uniform single-cylinder of 4,767 cm³ displacement at a uniform rated speed of 760 rpm. Unladen weights range from 1,850 to 2,140 kg, lengths from 2,540 to 2,840 mm, widths from 1,416 to 1,505 mm and heights from 1,950 to 2,055 mm; all versions run on multiple fuels.
The Bulldog's multi-fuel engine could burn crude oil, tar oil and other cheap fuels besides diesel, which made it attractive to farmers in times of scarce and expensive fuel; the HN 5 thus stood in the post-war years for simple, robust drive technology on mid-size farms.
On a used example, the condition of the hot bulb and cylinder liner, tightness of the cooling, condition of the large flywheel and the starting crank, and rust on mudguards and bonnet count; parts for the single-cylinder Bulldog engine are available through specialist Lanz Bulldog mechanics and vintage-machinery dealers.
Sources: SpecCodex register, model data: Heinrich Lanz HN 5
Models compared
3 of 3 models.
| D 35001936–1942 | D 35061936–1952 | D 3506 A1950–1952 | |
|---|---|---|---|
| Power | 12.4 kW | 14.6 kW | 12.4 kW |
| Rated speed | 760 rpm | 760 rpm | 760 rpm |
| Cylinders | 1 | 1 | 1 |
| Displacement | 4,767 cm³ | 4,767 cm³ | 4,767 cm³ |
| Top speed | 6.9 km/h | 18.5 km/h | 20 km/h |
| Wheelbase | 1,680 mm | 1,680 mm | 1,680 mm |
| Length | 2,625 mm | 2,540 mm | 2,840 mm |
| Width | 1,505 mm | 1,425 mm | 1,416 mm |
| Height | 1,960 mm | 1,950 mm | 2,055 mm |
| Unladen weight | 2,000 kg | 2,140 kg | 1,850 kg |
Models
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.
D 3500
The Heinrich Lanz D 3500 belongs to the HN 5 series. Production: 1936–1942. The engine delivers 17 hp (12.4 kW), has...
D 3506
With the D 3506, Heinrich Lanz offers a model from the HN 5 series. Production: 1936–1952. The engine delivers 20 hp...
D 3506 A
The Heinrich Lanz D 3506 A is a model in the HN 5 series. Production: 1950–1952. The engine delivers 17 hp (12.4...
