| 31. | The engine was Briggs & Strattion Model ZZ Gas Engine.
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| 32. | The final engine produced by the British Gas Engine company was the Utilite Engine.
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| 33. | When in use, it was powered by a gas engine.
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| 34. | In 1890 Lanchester patented a self-starting device for gas engines.
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| 35. | Natural-gas engines have " much more complicated spark and ( fuel ) injector systems,"
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| 36. | If so, why not comprimise the power and still use just a gas engine?
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| 37. | The steam engine was eventually replaced by a gas engine.
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| 38. | And at low speeds, when gas engines are inefficient, the battery does the work.
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| 39. | -Under full acceleration, both the electric motor and the gas engine share the load.
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| 40. | The line finally opened in 1891, and was originally powered by a gas engine.
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