Accession Number : ADA118127

Title :   The Use of the Fallout Meteorological Message for High Altitude Ballistic Trajectories.

Descriptive Note : Final rept.,


Personal Author(s) : Bander,T J ; Davis,W E

PDF Url : ADA118127

Report Date : Jun 1982

Pagination or Media Count : 29

Abstract : As projectiles of new weapons systems traverse altitude ranges of 20 to 30 km, where no meteorological information exists for ballistics, meteorological information is necessary in this range to assist in targeting the weapon. An algorithm has been developed and tested using the information available about the windspeed and direction from the fallout meterological message as input into ballistic equations. As a result of using this information, the comparisons with the current default techniques shows an increased accuracy or = 25 percent. When climatological values of temperature and density are used with the winds from the fallout meteorological message, an increased accuracy of or = 30 percent over default is obtained. Another technique using extrapolation of meteorological data with the fallout met message winds realized a 90 percent improvement over default. (Author)

Descriptors :   *Ballistic trajectories, *Artillery ammunition, *Meteorological data, High altitude, Atmospheric density, Wind direction, Wind velocity, Collecting methods, Algorithms, Computer programming, Errors, Projectile trajectories

Subject Categories : Meteorology
      Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE