UK_John: What is going on that my Thruster can be 43% full with plutonium and yet it will say "not enough fuel to take off". Is there a minimum the Thruster needs or is it a bug? It's left me on top of a 100 foot pillar with a Gek Monolith! Doubt my starter jeypack would get me up or down!
Every time I take off, I lose 25% fuel. When my thrusters are fully fueled, I can take off 4 times before refueling. 43% should be enough for 1 takeoff.
Your jetpack can probably get you down. You only need to activate it before impact. Getting back up might be a problem, though. If you doubt you can get up, I wouldn't try getting down either.