Howdy James Catchpole,

My understanding agrees that a J4 drive designed for a 400 ton hull will not allow a 300 ton hull to do one five parsec jump.

The drive is not stripped out of a 400 ton hull and put into a 300 ton hull and your comment about drop tanks is how a J4 drive is part of a 300 ton hull.

The only way I can see the J4 drive 400 ton hull allowing the 300 ton hull to make a five parsec jump is by completing a four parsec jump followed by a one parsec jump. I have not checked to see how much fuel would be used by to make both jumps.

Thank you for your help.

Tom Rux
On October 6, 2019 at 11:37 AM "James Catchpole (via tml list)" <xxxxxx@simplelists.com> wrote:

Hi Tom,

I would have to say no, that isn't the case.

In Book 2 of the LBB all the drives are standard and the performance depends on the hull size they are fitted into. The implication is that stripping such a drive from one hull and fitting it into a different size hull will give a different performance. 

Also, the performance rating of the LBB designs with drop tanks indicates that the same drive will give different performance depending on the current volume it has to jump.

Hope that helps.

Cheers,
Jim 

On Sun, 6 Oct 2019 19:15 Thomas RUX, < xxxxxx@comcast.net> wrote:

Hello all,


Back in when I picked up Traveller my impression, which was reinforced by the GM, has been that a J4 drive has a maximum range of four parsecs regardless of the hull size that it is installed in.


Can a J4 drive built for a 400 ton hull allow a 300 ton hull to make a five parsec jump?


Tom Rux

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