In this paper aimed at the application problem of certain aviation bomb for a certain fighter, a coincidental calculation method of bomb ballistic coefficient is proposed.

In the method particle trajectory model of certain aviation bomb is chosen, drag law by the numerical simulation based on the virtual wind-tunnel is adopted.

On February 21st 1970 Swissair Flight 330 to Tel Aviv crashed after a parcel bomb exploded in its cargo hold; 38 passengers and nine crew died.