This paper presents a method for achieving realism required by recent DoD tailoring documents. Use of this approach can be cost-effective for modeling realistic external-store environmental vibration stresses, where no measured data is available. The emphasis presented herein is in tailoring vibration levels to actual mission-defined captive and free-flight profiles. This approach uses a "maximum predicted environment" derived from the statistical analyses of 1839 random vibration flight data measurements made on six different external stores. The basic vibration data used in these analyses were measured on six different host aircraft under a wide variety of captive flight conditions. In comparison, the MIL-STD-810D calculated qualification test requirement for an aft-half, MER cluster, air-to-air missile, produced a required testing level greater than twice the maximum predicted environment (overall grms level) for an equivalent missile.
Tetroon Drag Coefficients from Experimental Free-Flight Data
