This was an experiment with one of Blender's "quick effects" - Quick Explode
this can be found under Object/Quick Effects/Quick Explode.
It works out of the box.. you may just need to set the start and end times to integrate with your animation. here i've also modified the brownian motion value, and gravity. tweaking more of the random features would have reduced the number of parallel moving particles.. and made it more realistic .
I also left the propeller pods intact and just manually animated them spiralling away from the exploding mass. One can then make them explode separately at will
the aircraft is my own quick design.. click the image below to see it
and here's a variation on that aircraft ..click the image below to see it
via Inaccessible is Accessible http://my.opera.com/chaitanyak/blog/show.dml/86523372