How to get Private Jets

For my jobs in cuba I bought all I can, next is to gain a few items out of loots, friends, or chances.

The most important one is this.

Private Jet - 38 Defense - Dropped from jobs and fights

The Private Jet comes from "Make a deal with the Mexican Cartel" job.
If you want more defense, work on replacing your town cars with Private Jets by doing this job over and over again.
They don't drop often, the higher your level is the more change, as Master Boss you have chance on a +10% drop rate