Tractor · 1927Unverified
Rock Island F 18-35
Rock Island F 18-35 — Standard-tread tractor · 18 hp. Reference specifications; pending source verification.
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
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.