[steam_tech] DPM convincing?

[NW Mailing List]

In a message dated 4/29/2008 8:20:20 A.M. Eastern Daylight Time,  
nw-mailing-list at nwhs.org writes:

What  happened to N&W fast freights after  dieselization?



Dave:
On the Atlantic Region, the time freights were usually assigned
sufficient power.  Norfolk Terminal always kept an eye on No.  86--
it had the Ford parts.  As a rule of thumb, one could figure 45  mins.
after it passed the hot box detector at Dwight, it would be
arriving at Portlock.  In timetables,  there were special  instructions
limiting the tonnage no. 77 could haul.
 
The Lake Region - well power for the time freights was something
else.  The overseers in the Terminal Tower in Cleveland would  raise
holy hades if TC-3 left Bellevue late.  There's some formula  engineering
types know as "balancing speed".  On TC-3 to Fort Wayne,  there
were three 4-axle units, including an ex-Wabash geep.  There
we were on the sixty-mile tangent between Arcadia and Fort Wayne
and TC-3 "balanced" at 21 MPH. 
 
On January 26, 1978, engs 2907 and 1331 left Lima with jam-up 
tonnage.  N&W tonnage ratings factored in cold weather --  the
colder the weather, the less tonnage could be hauled.  Well
the cold weather factor went unfactored that night.  Top speed ?
18 MPH downhill from Fort Recovery to the Wabash River.  Ball
State University recorded a temperature of 9 degrees (F) about
the time the train arrived in Muncie.
                                                    Harry Bundy



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