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- Otto Engine, circa 1883 - Nikolaus Otto's engines -- originally using coal gas, not gasoline -- were the first internal combustion engines to challenge the supremacy of the steam engine. They were hugely successful, needing neither boiler (cheaper initial investment and greater safety) nor licensed operators (lower operating expenses); plus they offered greater readiness -- they could simply be started, there was no waiting period to raise steam.

- circa 1883
- Collections - Artifact
Otto Engine, circa 1883
Nikolaus Otto's engines -- originally using coal gas, not gasoline -- were the first internal combustion engines to challenge the supremacy of the steam engine. They were hugely successful, needing neither boiler (cheaper initial investment and greater safety) nor licensed operators (lower operating expenses); plus they offered greater readiness -- they could simply be started, there was no waiting period to raise steam.