Selection and Characterization of Critical Missiles.

DOE-STD-3014-96

missiles (Reference 1). For evaluating SSC functionality

(discussed in detail in Section 6.3.4), in addition to the kinetic

energy of the impacting aircraft, the mass and stiffness

characteristics of the missiles should also be considered

because these are likely to affect the frequency content of the

vibration resulting from the impact.

For evaluating local response, the selection of critical missiles

should be based on the postulated aircraft impact velocity and

the relative sizes and weights of the heaviest rigid-type

components, considering all candidate aircraft subcategories.

Consideration should also be given to the mode of local

damage (see Section 6.3.2). One aircraft component may not

be critical for all modes of local damage. Also, for each mode

of local damage, more than one missile may need to be

selected unless one particular missile's combination of

velocity, size, and weight is clearly more critical than that of

other candidate missiles.

A representative weight and velocity for the aircraft in each

subcategory should be established based on the review of

aircraft subcategory data in the Data Development Technical

site-specific hazard study performed in accordance with the

guidance given in Chapter 5 of this standard. The analyst

should consider the representative aircraft weights and

velocities associated with both takeoff and landing scenarios.

Mass distribution of the aircraft along the length of the

fuselage can be obtained from Reference 2, from the aircraft

manufacturer, or by calculation based on the weights and