8 material differences · fewer than 12
Tractor oneInternational Harvester F-301931–1940No measured PTO figureTractor twoInternational Harvester 15-301921–1929No measured PTO figure
Which should you choose?
We will not advise between these two machines, because they were not built in overlapping years (1931–1940; 1921–1929). 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 | F-30 | 15-30 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 30.6 hp | 29.6 hp | — |
| Engine declared | INTERNATIONAL HARVESTER 284 | INTERNATIONAL HARVESTER 381 | differs |
| Displacement declared | 4.65 L | 6.26 L | +35% 15-30 |
| Transmission | |||
| Top speed declared | 3.7 mph · 6.0 km/h | 4.3 mph · 7.0 km/h | +17% 15-30 |
| Clutch declared | — | Pedal operated multi-disc clutch | — |
| Hydraulics & hitch | |||
| Rear PTO speeds declared | 534 rpm | 661 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 5,300 lb · 2,404 kg | 5,800 lb · 2,631 kg | +9% 15-30 |
| Wheelbase declared | 94.0 in · 2,388 mm | 85.0 in · 2,159 mm | +11% F-30 |
| Length declared | 147.0 in · 3,734 mm | 137.0 in · 3,480 mm | +7% F-30 |
| Width declared | 89.3–97.0 in · 2,267–2,464 mm | 65.0 in · 1,651 mm | differs |
| Turning radius, braked declared | 8.5 ft · 2.59 m | 8.2 ft · 2.51 m | — |
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.
International Harvester F-30 sources
- Source: Traktorenlexikon, “IHC F-30”
- Source: Traktorenlexikon, “McCormick 10-20”
International Harvester 15-30 sources
- Source: Traktorenlexikon, “McCormick 15-30”
- Source: Traktorenlexikon, “IHC 15-30”