Tractor Configuration - Early Usage of Term

Early Usage of Term

In the early days of flying, a distinction was made between a propeller ("pushes the machine") and a tractor-screw ("pulls the machine through the air")

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Famous quotes containing the words early, usage and/or term:

    Our bad neighbor makes us early stirrers,
    Which is both healthful and good husbandry.
    William Shakespeare (1564–1616)

    Girls who put out are tramps. Girls who don’t are ladies. This is, however, a rather archaic usage of the word. Should one of you boys happen upon a girl who doesn’t put out, do not jump to the conclusion that you have found a lady. What you have probably found is a lesbian.
    Fran Lebowitz (b. 1951)

    The term preschooler signals another change in our expectations of children. While toddler refers to physical development, preschooler refers to a social and intellectual activity: going to school. That shift in emphasis is tremendously important, for it is at this age that we think of children as social creatures who can begin to solve problems.
    Lawrence Kutner (20th century)