Extending Application of the Artillery Computer Meteorological Message.
ARMY ELECTRONICS RESEARCH AND DEVELOPMENT COMMAND WSMR NM ATMOSPHERIC SCIENCES LAB
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Preliminary results derived from a mathematical algorithm for calculating impact dispersion due to meteorological factors are presented. The report presents a comparison of three techniques for extending the maximum ordinate of the Artillery Computer Meteorological Message from 20 to 23 km, for application to projectiles traversing higher altitudes. The three techniques, called the default, the extrapolation, and the modified extrapolation or climatological, are analyzed against data from 69 rocketsonde flights that were conducted over White Sands Missile Range, New Mexico, during 1979. The measured and estimated data are used to ballistically simulate 552 impact displacements for a trajectory of a proposed rocket system. The findings show that the extrapolated meteorological correction yields a significant improvement over the current default method of using a standard meteorological message. Impact dispersion error analyses illustrate that a software addition to the current meteorological message procedure predicts all impacts within the current one probable error when the meteorological message is extended 3 km in altitude. Author
- Ammunition and Explosives
- Fire Control and Bombing Systems