| It is difficult to distinguish between these designs, except if the coach has 6 wheels. The only difference between S7 and S9 is the number of wheels. S9 is by far the most common design; so much so that it is unlikely that you'll see one of the others in a photo. | ||
| Third class diagram S7 | 28' long 6 wheel 19' wheelbase |
The axle box of the middle axle is just visible above the middle of the lower footboard.
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| Third class diagram S9 | 28' long 4 wheel 19' wheelbase |
This S9 is now in use by the Loco, Carriage & Wagon Dept, Yeovil and has had a pair of windows added into the end.
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| Third class diagram S11 | 30' long 4 wheel 19' wheelbase |
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| Third class diagram S12 | 30'1" long 6 wheel 19' wheelbase |
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| Third class diagram S13 | 31' long 6 wheel 19' wheelbase |
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