| 摘要 |
This invention pertains to a velocity monitor for an aircraft wherein a signal is given if, during the ground-roll of a take-off, the actual velocity falls below that necessary for successful take-off. To this end there is provided in series connection an accelerometer, a first and a second integrator, a function generator and a comparator for the first integral being a signal of actual velocity and the output of the function generator being a signal of desired velocity. The output of the comparator shows whether actual velocity is above or below the desired velocity.
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