ALLIS-CHALMERS FD-4 or Schlüter S 450 (S 450 V)?
Which should you choose?
The data can’t decide this. Power at the PTO shaft cannot be compared: the FD-4 has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the S 450 (S 450 V) has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft.
- The Schlüter S 450 (S 450 V) suits heavy draft work (ploughing, cultivating) better on this data: 22% (410 kg / 904 lb) heavier and four-wheel drive.
Generated by rule set compare@4 from the figures on the side-by-side table, allowed by route “the same stated configuration”. 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 | FD-4 | S 450 (S 450 V) | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 30.9 kW (41.4 hp)Traktorenlexikon, “Allis-Chalmers FD 4” | 30.8 kW (41.3 hp)Traktorenlexikon, “Schlüter S 450 / 450 V” | Not comparableNot comparable on power at the PTO shaft: the FD-4 has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the S 450 (S 450 V) has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft. |
| 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 FD-4 and the S 450 (S 450 V). |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the FD-4 and the S 450 (S 450 V). |
| Which pumps more oil for implements? | — | — | No figureNo call on hydraulic flow: no figure on record for the FD-4 and the S 450 (S 450 V). |
| Which lifts more on the three-point hitch? | 900 kg (1,984 lb)Traktorenlexikon, “Allis-Chalmers FD 4” | 1,000 kg (2,205 lb)Traktorenlexikon, “Schlüter S 450 / 450 V” | Not comparableNot comparable on three-point lift: the FD-4: lift at the hitch ends, as stated by the source (Traktorenlexikon, “Allis-Chalmers FD 4”); the S 450 (S 450 V): lift at an unstated point, as stated by the source (Traktorenlexikon, “Schlüter S 450 / 450 V”) — not the same quantity, basis and condition. |
| Which is heavier, for traction? | 1,840 kg (4,057 lb)Traktorenlexikon, “Allis-Chalmers FD 4” | 2,250 kg (4,960 lb) to 2,325 kg (5,126 lb)Traktorenlexikon, “Schlüter S 450 / 450 V” | Ahead (a fact, not an advantage)The Schlüter S 450 (S 450 V) is 22% heavier (410 kg / 904 lb) than the ALLIS-CHALMERS FD-4 (both unladen weight, as stated by the source). |
| Which may carry more ballast and load? | — | 2,300 kg (5,071 lb)Traktorenlexikon, “Schlüter S 450 / 450 V” | No figureNo call on maximum permissible mass: no figure on record for the FD-4. |
| Which has the wider choice of gears? | 8Traktorenlexikon, “Allis-Chalmers FD 4” | 8Traktorenlexikon, “Schlüter S 450 / 450 V” | 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? | — | YesTraktorenlexikon, “Schlüter S 450 / 450 V” | No figureNo call on a creeper range: not stated for the FD-4. |
| Which is faster on the road? | 20 km/h (12.4 mph)Traktorenlexikon, “Allis-Chalmers FD 4” | 20 km/h (12.4 mph) to 28 km/h (17.4 mph)Traktorenlexikon, “Schlüter S 450 / 450 V” | EvenEven on top speed (both top speed forward, as stated by the source): the figures vary by configuration and the ranges overlap. |
| Which offers more PTO speeds? | 540/1000 rpmTraktorenlexikon, “Allis-Chalmers FD 4” | 615/1230 rpmTraktorenlexikon, “Schlüter S 450 / 450 V” | No figureNo call on PTO speeds: no standard PTO speed stated for the S 450 (S 450 V). |
| Which PTO runs independently of the ground drive? | — | independentTraktorenlexikon, “Schlüter S 450 / 450 V” | No figureNo call on PTO independence: not stated for the FD-4. |
| Which drives on both axles? | 2WDTraktorenlexikon, “Allis-Chalmers FD 4” | Two-wheel or four-wheel driveTraktorenlexikon, “Schlüter S 450 / 450 V” | AheadThe Schlüter S 450 (S 450 V) is available with four-wheel drive; the ALLIS-CHALMERS FD-4 is two-wheel drive (as stated by the sources). |
| Which is newer, and what about parts? | 1962–1965 | 1962–1966 | 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?
- The Schlüter S 450 (S 450 V) is 22% heavier (410 kg / 904 lb) than the ALLIS-CHALMERS FD-4 (both unladen weight, as stated by the source).
- The Schlüter S 450 (S 450 V) is available with four-wheel drive; the ALLIS-CHALMERS FD-4 is two-wheel drive (as stated by the sources).
- 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 figures vary by configuration and the ranges overlap.
- Same era: production began within 5 years of each other. We hold no parts-availability data, so there is no call on parts.
- Not comparable on power at the PTO shaft: the FD-4 has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the S 450 (S 450 V) has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft.
- Not comparable on three-point lift: the FD-4: lift at the hitch ends, as stated by the source (Traktorenlexikon, “Allis-Chalmers FD 4”); the S 450 (S 450 V): lift at an unstated point, as stated by the source (Traktorenlexikon, “Schlüter S 450 / 450 V”) — not the same quantity, basis and condition.
- No figure on record for every machine, so no call on: fuel efficiency at the shaft, drawbar power, hydraulic flow, maximum permissible mass, a creeper range, PTO speeds and PTO independence.
← Every figure for both machines, side by side, with sources