Ullage Motor

Ullage Motor

Ullage motors (also known as ullage engines or ullage rockets) are relatively small, independently-fueled rocket engines that may be fired to accelerate the rocket prior to main engine ignition, when the vehicle is in a zero-g situation.

Read more about Ullage Motor:  Description

Famous quotes containing the word motor:

    The motor idles.
    Over the immense upland
    the pulse of their blossoming
    thunders through us.
    Denise Levertov (b. 1923)