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class8mikado's Recent Activity
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class8mikado replied to the thread The 10A Allocation.
Its a bit of a daft system - neither example is mainline approved or likely to be - but a 9f would be limited to 50, A Beattie well tank or Dukedog good for 60....
Jun 11, 2026 at 1:46 PM -
class8mikado liked 26D_M's post in the thread The 10A Allocation.
Yes I know, I was simply pointing out John that there was no difference in max speed using 2 otherwise very similar designs, dimensionally where one has rollers and the other does not. The analogy being that black 5s are all 60mph so the addition...
Jun 11, 2026 at 1:40 PM -
class8mikado replied to the thread The 10A Allocation.
Cant think that the use of roller bearings has ever been a factor in setting mainline loco speed limits. Some dispensation would need to be sought for a Black 5 to run at 75mph, but perhaps because of a proposed alteration to balancing or perhaps...
Jun 11, 2026 at 9:51 AM
