thrust line

thrust line

In an arched structure, the line of action of the resultant compressive force.

thrust line

thrust lineclick for a larger image
An imaginary line through which the resultant thrust acts. The line may refer to the thrust axis of one engine or of the whole aircraft.
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The northeastern limb of thrusted Abbottabad anticline is relatively normal and less faulted while the southwestern limb is overturned and shows active thrust line.
Because of the clearance required between the pusher propeller and the ground, the pilot or passenger used to be seated quite low to the ground, which by default meant that the thrust line was much higher than is safe or practical.
Referring to Figure 2, also on the opposite page, the larger the arm "a" of the asymmetric thrust line, the larger the zero-sideslip bank angles must be.