For some odd reason, I can't find anywhere in any of the Traveller rules sets I own (CT, MT, TNE, T4, and recently, MGT) indicating that when a ship takes a given amount of hull damage, the ship has an increased chance of mis-jumping. I don't see anything on the surface table damage for HG for instance, that reads "Hull grid damaged, +1 to Mis-jump roll" or words to those effects. Jump drive damage, yes, Hull grid damage, No. If you want, you can rationalize the idea that damage to the Jump drive itself represents jump grid damage but for one minor little problem...
Why then, is it not possible to have a Jump-4 starshp in its pristine state, suffer a Jump-1 result, and have it such that the ship can still jump 4 parsecs, but have a +1 or +2 roll on the mis-jump table? Come to think of it? One could suffer a Jump-1 drive damage result in combat, and then temporarily fix the issue, only to need a roll of (iirc) 8+ for the system to work later on after the temporary fix.
What is perhaps even more interesting, is the concept of a jump-net. It grants the ability to emplace a grid system outside of an object, and then project a jump field around the grid of the net itself. While I've not bothered to point this out, in previous discussions, I'm wondering if anyone else has bothered to point out that a ship with spare engineroom hull space, can be easily converted from a non-starship into a starship with the simple expediency of wrapping the hull with the jump netting, and attaching it to the internal jump drive recently installed in the new ship.
Which brings me to another point <g>.
Why aren't the hulls specialized between "Jump capable" and "Non-jump capable"? One would think that a non-jump capable hull for a 1,000 dton ship would be cheaper to manufacture than one with the jump grid embedded within it. CT never did this, nor to my knowledge, has any other game system. Just little niggling details that crop up from time to time
