Mileposts and distances
NW Mailing List
nw-mailing-list at nwhs.org
Tue Nov 22 22:06:44 EST 2016
On 11/22/2016 7:18 PM, NW Mailing List wrote:
> Jimmy Lisle and others in the operating or formerly so, department,
> care to toss in your thoughts and judgments here?
Yes Bob, I would!
/*"*//*To change well-known meeting points with new MP's would have
really messed up the old heads on the RR who were used to meeting at a
specific spot, or knew their grades were in a specific spot for either
accelerating or braking."
*/...may only be true only if you happen to believe the old story about
the engineer using a cow for a mark when returning to couple to his
train and the cow had moved, thus causing him to run into his own train.
*/Changes such as realignments develop slowly over the time of
construction. So, it is not like the earth suddenly changed overnight.
The men could see what was going on and would be prepared for slight
changes in alignment and just because a milepost is moved a few feet
wouldn't really matter. Not all trains handle the same, so, braking and
accelerating points change with each train. An engineer would use the
general area's landmarks to help decide when to brake or accelerate and
those points might change by only a few car lengths depending on how
that particular train handled.
You are correct about the distance between mileposts not being
exactly a 5280' in length. I have gone over the track chart for the
Roanoke District and found that most miles were either a few feet over
or under, but, nothing way off. Does this matter? In the grand scheme of
things, not really. However, if you happen to have not been able to
check your speedometer through the test mile, it makes it hard to check
with accuracy on a short or long mile.
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