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Tractor · 1927Unverified

Rock Island F 18-35

Name: Rock Island F 18-35
Brand: Rock Island

Rock Island F 18-35 — Standard-tread tractor · 18 hp. Reference specifications; pending source verification.

The Rock Island F 18-35 is a tractor rated at 18 hp — making it one of the more compact options in its class. The F 18-35 was manufactured from 1927 to 1937. It is powered by a 4-cylinder liquid-cooled engine, driving through two-wheel drive with a 2-speed gearbox. It is aimed at jobs of around up to 200 ac. Available dimensions and performance figures follow in both unit systems.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

18 hp

Max power

22.7 kW

Catalogue coverage

Variants represented

Richest spec table

31 rows

Recorded power

18 hp

Transmissions

2-speed unsynchronized gear

Production years

1927-1937

Verified variants

No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.

Hover a source tag to verify

Overview

ManufacturerRock IslandReference

Standard-tread tractorReference

Built in Rock Island, Illinois, USAReference

Two-wheel driveReference

SteeringmanualReference

Open operator station.Reference

Engine

Buda 6.3L 4-cyl keroseneReference

Drawbar (claimed)13.4 kWReference

Belt (claimed)26.1 kWReference

Drawbar (tested)22.7 kWReference

Belt (tested)27.2 kWReference

BudaReference

keroseneReference

4-cylinderReference

liquid-cooled L-headReference

Displacement6.3 LReference

Bore/Stroke114 x 152 mmReference

Rated RPM1100Reference

Belt power (max)27.2 kWReference

Max power22.7 kWReference

Transmission

2-speed unsynchronized gearReference

Typeunsynchronized gearReference

Gears2 forward and 1 reverseReference

Links

Rock Island F: information at the RIPC siteReference

Capacities

Diameter45 cmReference

Width19 cmReference

RPM660Reference

Test results

Kerosene 2-speed 2WDOctober 12 - 19, 1927Link: Nebraska Tractor Test 144 fileReference

Belt fuel use (max)17.8 l/hourReference

Drawbar performanceReference

Max pull1446 kgReference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

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