Well, in MgT2, at least, there is a DM for every parsec you are
jumping, so a more skilled navigator/engineer would help avoid that.
However there isn't anything that says you need to be more skilled to
work on a larger jump number ship.

On Tue, Mar 31, 2026 at 3:37 PM Jeff Zeitlin - editor at
freelancetraveller.com (via tml list) <xxxxxx@simplelists.com> wrote:
>
> Is there anything in canon that specifies minimum crew skill levels for
> operating a starship? Specifically, I'm interested in whether you need
> better engineering skill to handle a J3 drive than a J2/J1 drive, or better
> Nav/Astro for taking a ship through J3 instead of J2/J1. And similar
> questions regarding powerplant and/or M-drive.
>
> Reason: I'm providing partial pregens for an adventure I'm writing that
> involves an experimental drive, and if there are minima for standard
> drives, I need to know them so that I can skill the PCs appropriately.
>
>
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