The size is the same between the two. What is different is the layout 'base' within the case. The S030 has a preformed base with hill, graded track base and tunnel that allows for the over-under design. The S031 has a flat base that allows for a more freestyle approach. Rokuhan shows the S031 used for a switching layout, but I can envision it being used for a larger oval.
Rokuhan also shows the case connected together with trains going from the over-under to the flat case for switching.
On Aug 30, 2013, at 3:40 PM, greg@... wrote:
> Rob, I notice there are 2 different briefcase "kits", s030 and s031.... can you shed some light on the differences/specs? I made a text listing of Rokuhan, since I recently was "bitten" by some obsolete part numbers and the replacements weren't the same number in the pack. http://elmassian.com/z-scale-trains/z-track/rokuhan-track Greg --- In email@example.com, <ztrack@...> wrote: Rokuhan's briefcase layout kits are now in stock at the Z Scale Track Store. The kits come with a steel side briefcase, formed based, and instructions. The S030 over-under design also include a tunnel, tunnel portals and foam base. The kits do not include track, transformer, or scenery.
> Rokuhan has released separately an over under track set (R021) that is designed for the briefcases, but can just as easily be used stand alone or as a starting point for a larger track plan.
> A double track oval set is available now as well. The set is items R062 and has two loops and a series of turnouts connecting them. The inside loop is 195mm and the outside loop is 220mm.
> Additionally we now have in stock Rokuhan's just released 12' foot containers.
> Check out all of the offerings at
> Rob Kluz
> Ztrack Magazine Ltd.
> Distributor American Z Line
> Authorized MTL, Full Throttle, Rokuhan
> InterMountain and Tenshodo dealer
> 6142 Northcliff Blvd
> Dublin OH 43016
> (614) 764-1703
> [Non-text portions of this message have been removed]
> Z-scale: minimum siZe, MAXIMUM enjoyment!
> Yahoo! Groups Links
Ztrack Magazine Ltd.
Distributor American Z Line
Authorized MTL, Full Throttle, Rokuhan
InterMountain and Tenshodo dealer
6142 Northcliff Blvd
Dublin OH 43016
[Non-text portions of this message have been removed]