Someone (Chris?) asked for a program like this last week, it just came out today.
File Description:
These FX files allow you to drop a number of palletized cargo loads from the C-130. Editing the included text insert (door location) for the aircraft.cfg file will allow them to be dropped from any other plane of your choosing as well. I no longer have FS2002 so was unable to test this with that FS version. I wish to thank Mr. Pierino Primavesi for his kind permission in allowing me to modify the FX files he made for his Luftwaffe version of the JU-52. Visit his site at: http://www.ju52-3m.ch/ for more of the latest updates for the Junkers JU-52. Payware quality for free. You can't go wrong. Enjoy! Heather
fxad-01.zip
https://flyawaysimulation.com/downloads/files/3290/c-130-cargo-air-drop-fx/

Chief Captain