A Closer Look at the Problem

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In the diagram above a 25 Newton force is applied to the projectile between the nose cone and the projectile body. The force is applied when the following two conditions are met :

starting 1 second after lauch and continuing for 1 second
when the Euler roll angle of the projectile is between ±15 (-15^o <=f<=+15^o).

Because the body rolls during flight, the injection force periodically turns on and off during the specified time. This force will be modeled in the Flight Control Builder as an injection force (Y_inject).

When the body lateral injection force is on, a yawing moment about the mass center is also induced due to the fact that the applied force is offset from the mass center by the distance DX. This moment will be modeled in the Flight Control Builder as an N_inject Moment.