I think the failure characteristics are pretty easy to understand.
They'd fall into two categories:
- Sudden loss of power
- Mechanical failure that results in unscheduled disassembly
As these crafts have no aerodynamic surfaces like the 3 other things you compared them to, the first category would result in the rider falling from whatever height. (Minimum altitudes to successfully deploy even a BASE parachute are higher than one might think.)
And well, the second category should be self explanatory. An explosive failure of the stuff strapped to your back would just create extra excitement or death before proceeding reverting to the first failure mode.
They'd fall into two categories:
- Sudden loss of power
- Mechanical failure that results in unscheduled disassembly
As these crafts have no aerodynamic surfaces like the 3 other things you compared them to, the first category would result in the rider falling from whatever height. (Minimum altitudes to successfully deploy even a BASE parachute are higher than one might think.)
And well, the second category should be self explanatory. An explosive failure of the stuff strapped to your back would just create extra excitement or death before proceeding reverting to the first failure mode.