How high is the production bonus of a great engineer in Civ5?

To quote the manual:

Special Ability: Hurry Production

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  • You can expend a Great Engineer to create
    a sudden burst of production in a
    city. The production is immediately
    applied to whatever is presently being
    built in the city – unit, building or
    Wonder. This will usually be enough
    production to immediately finish all
    but the most massive Wonders, and it
    will drastically shorten their
    production time.

    I had a great engineer during modern times, and using it to help produce the Statue of Liberty (1200 prod needed) yielded 750 production. Letting it help along for a Stock Exchange immediately finished this building (650 prod cost).

    I assume that the amount of prod. generated is somehow game-stage related? Are there any known specific rules?

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  • One Solution collect form web for “How high is the production bonus of a great engineer in Civ5?”

    The amount of production of a great engineer on normal speed is calculated using the formula

    300 + 30 * city population

    So in a city with a population of 1 the engineer only results in 330 production, in a size 15 it results in 750 production.

    For quick speed the formula is:

    200 + 20 * city population

    For epic speed it is:

    450 + 45 * city population

    and for marathon it is:

    900 + 90 * city population

    The amount of hammers does not seem to be influenced by era, map size or difficulty level.

    If you want to hurry late game wonders, build it in a city with a large population.

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