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The model archive
General Ordnance
Explore 3 farm tractor models. Follow a model into its engine specifications, transmissions, dimensions, historical photographs, and available test records.
About General Ordnance
General Ordnance adapted its Connecticut munitions business to tractors after purchasing Denning in 1918. It used National and General Ordnance badges before manufacturing ended.
- Beginning
- 1918 tractor acquisition; earlier company founding unverified
- Founder / origin
- General Ordnance acquiring Denning’s tractor business
- Known for
- Denning-derived farm tractors
- Sale / later history
- Production stopped in 1921; bankruptcy in 1922
History and legacy
The manufacturing lineage began with the acquired Iowa design, even though the new owner was based in Derby, Connecticut. The National badge was a transitional identity rather than proof of a separate, unrelated tractor design.
Sources & further reading
History reviewed 2026-10-20.
Showing 3 of 3 models

14-28
↗1919–1920
31 hp
Engine estimate from belt power
2WD Only
Drive

12-22
↗1918
24 hp
Engine estimate from belt power
2WD Only
Drive

9-16
↗1918
17 hp
Engine estimate from belt power
2WD Only
Drive
Index power values can include estimates derived from belt or PTO power. They are identified on each model card and are not interchangeable with a measured engine rating. Model years and missing values follow the source index.