International Harvester 10-20 or International Harvester "Regular"?
Which should you choose?
On performance, no comparable figure differs by more than its threshold: on this data the machines are level.
Generated by rule set compare@4 from the figures on the side-by-side table, allowed by route “similar machines”. Measured figures are compared only with measured, claimed only with claimed, at the same test condition; differences within each figure’s tolerance are not called.
What decides it, question by question?
| Question | 10-20 | "Regular" | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 15.0 kW (20.1 hp)Traktorenlexikon, “McCormick 10-20” | 15.0 kW (20.1 hp)Traktorenlexikon, “IHC Farmall Regular” | EvenEven on power at the PTO shaft (both power at the PTO, claimed): the difference is under the 10% threshold for claimed figures, too small to call. |
| Which turns a litre of fuel into more work at the shaft? | — | — | No figureNo call on fuel efficiency at the shaft: no figure on record for the 10-20 and the "Regular". |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the 10-20 and the "Regular". |
| Which pumps more oil for implements? | — | — | No figureNo call on hydraulic flow: no figure on record for the 10-20 and the "Regular". |
| Which lifts more on the three-point hitch? | — | — | No figureNo call on three-point lift: no figure on record for the 10-20 and the "Regular". |
| Which is heavier, for traction? | 1,819 kg (4,010 lb)Traktorenlexikon, “IHC 10-20” | 1,735 kg (3,825 lb)Traktorenlexikon, “IHC Farmall Regular” | EvenEven on weight (both unladen weight, as stated by the source): the difference is under the 10% threshold, too small to call. |
| Which may carry more ballast and load? | — | — | No figureNo call on maximum permissible mass: no figure on record for the 10-20 and the "Regular". |
| Which has the wider choice of gears? | 3Traktorenlexikon, “IHC 10-20” | 3Traktorenlexikon, “Farmall Farmall Regular” | EvenEven on forward gears (both forward gears, as stated by the source): the difference is under the 25% threshold, too small to call. |
| Which offers a creeper range? | — | — | No figureNo call on a creeper range: not stated for the 10-20 and the "Regular". |
| Which is faster on the road? | 7.0 km/h (4.3 mph)Traktorenlexikon, “IHC 10-20” | 6.5 km/h (4.0 mph)Traktorenlexikon, “Farmall Farmall Regular” | EvenEven on top speed (both top speed forward, as stated by the source): the difference is under the 10% threshold, too small to call. |
| Which offers more PTO speeds? | 661 rpmTraktorenlexikon, “IHC 10-20” | 535 rpmTraktorenlexikon, “IHC Farmall Regular” | No figureNo call on PTO speeds: no standard PTO speed stated for the 10-20 and the "Regular". |
| Which PTO runs independently of the ground drive? | — | dependent (stops with the clutch)Traktorenlexikon, “IHC Farmall Regular” | No figureNo call on PTO independence: not stated for the 10-20. |
| Which drives on both axles? | 2WDTraktorenlexikon, “IHC 10-20”; Traktorenlexikon, “McCormick 10-20” | 2WDTraktorenlexikon, “Farmall Farmall Regular”; Traktorenlexikon, “McCormick Farmall Regular”; Traktorenlexikon, “IHC Farmall Regular” | EvenEven on drive: all two-wheel drive. |
| Which is newer, and what about parts? | 1923–1939 | 1924–1932 | EvenSame era: production began within 5 years of each other. We hold no parts-availability data, so there is no call on parts. |
What does this mean in plain words?
- Even on power at the PTO shaft (both power at the PTO, claimed): the difference is under the 10% threshold for claimed figures, too small to call.
- Even on weight (both unladen weight, as stated by the source): the difference is under the 10% threshold, too small to call.
- Even on forward gears (both forward gears, as stated by the source): the difference is under the 25% threshold, too small to call.
- Even on top speed (both top speed forward, as stated by the source): the difference is under the 10% threshold, too small to call.
- Even on drive: all two-wheel drive.
- Same era: production began within 5 years of each other. We hold no parts-availability data, so there is no call on parts.
- No figure on record for every machine, so no call on: fuel efficiency at the shaft, drawbar power, hydraulic flow, three-point lift, maximum permissible mass, a creeper range, PTO speeds and PTO independence.
← Every figure for both machines, side by side, with sources