6 material differences · fewer than 12

Tractor oneHELA D 391939No measured PTO figureTractor twoJ.I. Case Modell-V1940–1942No measured PTO figure

Which should you choose?

Read our verdict on the D 39 and the Modell-V → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

Field by field

6 material differences · 2 fields identical or within 5%, which is not counted as material

HELA D 39 and J.I. Case Modell-V, field by field
FieldD 39Modell-VGap
Engine
Engine power, claimed claimed21.6 hp22.1 hp—
Engine declaredKHD F2M 414——
Displacement declared2.20 L——
Transmission
Top speed declared12.1 mph · 19.4 km/h9.9 mph · 16 km/h+21% D 39
Clutch declaredSingle-plate dry clutch by Fichtel & SachsPedal operated Atwood single plate clutchdiffers
Hydraulics & hitch
Rear PTO speeds declared540 rpm559 rpmdiffers
Weight & dimensions
Unladen weight declared3,086 lb · 1,400 kg4,299 lb · 1,950 kg+39% Modell-V
Wheelbase declared68.9 in · 1,750 mm72.0 in · 1,829 mm—
Length declared100.8 in · 2,560 mm107.0 in · 2,718 mm+6% Modell-V
Width declared59.1 in · 1,500 mm——
Ground clearance declared10.2 in · 260 mm16.5 in · 419 mm+61% Modell-V
Turning radius, braked declared—9.0 ft · 2.74 m—
Fuel tank declared40.2 qt · 38 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.

HELA D 39 sources

Source
  • Source: Traktorenlexikon, “HELA D39 (1939)”
  • Source: Traktorenlexikon, “Fahr D 22”

J.I. Case Modell-V sources

Source
  • Source: Traktorenlexikon, “Case V”