9 material differences · fewer than 12

Tractor oneBrandenburger Traktorenwerke RS03 („Aktivist“)1949–1952No measured PTO figureTractor twoFahr D 131 L1959–1960No measured PTO figure

Which should you choose?

We will not advise between these two machines, because their unladen weight differs by more than 25% (91%); they were not built in overlapping years (1949–1952; 1959–1960). 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

9 material differences · 0 fields identical or within 5%, which is not counted as material

Brandenburger Traktorenwerke RS03 („Aktivist“) and Fahr D 131 L, field by field
FieldRS03 („Aktivist“)D 131 LGap
Engine
Engine power, claimed claimed29.58 hp19.7 hp+50% RS03 („Aktivist“)
Engine declaredBrandenburger Traktorenwerk 16 V 2Güldner 2 LDdiffers
Displacement declared3.33 L1.31 L+155% RS03 („Aktivist“)
Maximum torque declared—54 lb·ft · 73 N·m—
Transmission
Top speed declared11.2 mph · 18 km/h12.3 mph · 19.87 km/h+10% D 131 L
Clutch declaredSingle-plate dry clutch——
Hydraulics & hitch
Pressure declared—2,134 psi · 147 bar—
Rear PTO speeds declared540 rpm1614differs
Weight & dimensions
Unladen weight declared4,960 lb · 2,250 kg2,601 lb · 1,180 kg+91% RS03 („Aktivist“)
Maximum permissible mass declared—3,527 lb · 1,600 kg—
Wheelbase declared65.0 in · 1,650 mm70.9 in · 1,800 mm+9% D 131 L
Length declared105.7 in · 2,685 mm114.6 in · 2,910 mm+8% D 131 L
Width declared64.2 in · 1,630 mm59.8 in · 1,520 mm+7% RS03 („Aktivist“)
Ground clearance declared11.4 in · 290 mm15.4 in · 390 mm+34% D 131 L
Turning radius, braked declared—7.9 ft · 2.42 m—
Fuel tank declared—37.0 qt · 35 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.

Brandenburger Traktorenwerke RS03 („Aktivist“) sources

Source
  • Source: Traktorenlexikon, “Brandenburger Traktorenwerke RS 03/30”

Fahr D 131 L sources

Source
  • Source: Traktorenlexikon, “Fahr D 131 L”