NW Mailing List nw-mailing-list at
Sun Aug 28 12:30:18 EDT 2011

I should know better than to venture an answer relating to steam, but
here goes. Maybe the throttle was cracked open, and the engine brakes
not firmly set, so that eventually enough pressure built up the
pistons to overcome the brakes just for a moment? Just enough for a
sudden partial rotation of the drivers?

OK, old heads, feel free to pile on now.

- Marty Swartz

What gets us into trouble is not what we don't know. It's what we know
for sure,… that just ain't so.   - Mark Twain

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