I decided to adjust the plan to make the layout independent when required, but with the option to connect to other layouts. Also The under level can be used to add time to a rail journeys. Unfortunately this addition meant that the width and length had to be increased to a total of 780 mm x 3100 mm.
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| Ground level |
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| Under level |
A double track spiral will be used to connect both levels. The plan is nearly there, I just need to make adjustments, the current under level version was to get track out without thought.
Advantages:
- Lower level can be used as test track, as it has the loop implemented.
- Layout can operate on it's own
- Layout can operate with other layouts
- Storage cassette loading/unloading of locomotives and rolling stock
- Full size HST (rake of seven coaches and the two power cars) will fit on the stations main platform. (Based on estimated lengths).
- Only one double slip used on ground level, due to space restrictions. (might be able to remove it)
Disadvantages:
- Complexity - needs to be gone over to adjust track work
- Spiral - will my locomotives be able to handle it under load.
- Increased layout board size -
- width increased by 430 mm
- length increased by 600 mm
- Electrical complexity
- Wye
- Reversing loops
- Building the storage cassettes
- Cost of points and double slips.
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