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California's Railroad to the U.S. 1861 - 1996

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Model Train Help EBook

Southern Pacific
Transportation Company

Western
Region
Timetable

2

Sunday, October 25, 1987


LOS ANGELES DIVISION

MOJAVE SUBDIVISION

AIR BRAKE RULES

FREIGHT TRAINS

     RULE 2. Following is added:
When computing the number of axles of dynamic brake, units
classified GP60, GF439-01 and EF438-01 are to be considered as
having 5 axles of dynamic brake.

     RULE 14. Union Pacific locomotives have been modified so that
if an emergency application of brakes is initiated from any source
other than the engineer's brake valve, there will be a 20-second
delay before power or dynamic brake is cut off. Thery are not to be
used as controlling locomotive on a helper or light engine.

     Between Bakersfield and Bena, the first helper may
be positioned so that placement is correct after picking up second
helper at Bena.

     Between Bakersfield and West Colton eastward trains having
more than one helper will not be required to relocate the through
helper when the swing helper is removed.

     Maximum tonnage to be handled behind engines.

TERRITORY
(on ascending grades)                    Road Engine     Helper Engine
Kern Jct. - Ilmon...........................      5,950                 5,400
Ilmon - Summit Switch..................      3,700                 3,400
Ilmon - Summit Switch (BKDOL)....      4,250                 4,000
Mojave - Summit Switch................      5,100                 4,700
Los Angeles - Vincent...................      4,100                 3,700
Palmdale - Vincent........................      5,200                 4,800
Colton - Hiland..............................      4,500                 4,100
Palmdale - Mojave.........................      7,500                 6,800
Palmdale - Hiland..........................    10,000                 9,100      

     RULE 17. Retaining valves must be used on descending
grades as follows:
     Cameron to Mojave             Searles to MP 412.0
     Tehachapi to Caliente         Creal to Mojave
     Vincent to Long                  Hiland to bottom of both legs of wye,
                                              at West Colton.
                                           This restriction will not apply to locals,
                                              road-switchers and yard engines
                                              operating between MP 486.9 and
                                              bottom of both legs of wye at West
                                              Colton.

WITHOUT DYNAMIC BRAKE IN OPERATION

     One retaining valve for each 80 tons in train. If gross tonnage
exceeds 80 tons per operative brake, retaining valves must be used
on all cars and speed must not exceed 15 MPH.

WITH DYNAMIC BRAKE IN OPERATION

     Permissible Tons Per Axle Without Retaining Valves

Standard RangeExtended Range
          375450          

     If permissible tonnage is exceeded, one retaining valve must
be used for each 150 tons of excess tonnage.

     When dynamic brakes are inoperative, stops must be made
between siding switches Canyon or Dike and at MP 434.6 on
Saugus Line.

     Freight trains may make continuous run Tehachapi to Wood-
ford, where stop of 10 mins. must be made. If stop made at Cable,
Marcel or Walong for 10 mins. succeeding run may be made to
Cliff, where stop of 10 mins. must be made. After 10 mins. stop at
Woodford, Rowen or Cliff succeeding run can be made to Bena.

     Freight trains with dynamic brakes in operation, using retain-
ing valves, need not stop for wheel heat radiation, if in judgement
of conductor and engineer wheels are not overheating.

     Westward trains may turn up retaining valves at west end of
Tehachapi if not required to stop before entering CTC. Retaining
valves may be turned down at Ilmon or Bena instead of Caliente.
If retaining valves are not turned down before leaving Ilmon, speed
must not exceed 25 MPH, Ilmon to Bena.

     RULE 24-E. Will apply when so instructed Bakersfield

     RULE 24-G. Will apply at Bakersfield, Searles and West
Colton.

     RULE 25-B. Will apply to all trains approaching Summit
Switch; eastward trains between MP 455.0 and Hiland and MP
416.0 and Vincent, westward trains between MP 425.0 and
Vincent. Summit brake test made under provisions of Air
Brake Rule 25 will fulfill the above requirement.
     All ATSF trains approaching Summit Switch, engineer must
determine air brake pressure at rear of train. If engineer is unable
to ascertain air brake pressure at rear of train, engineer will com-
ply with ATSF Air Brake Rule 916.

     RULE 33. Grades exceeding 1.8% - Tehachapi to MP
332.6, Cameron MP 371.5 to Mojave, Creal to Mojave, Searles to
MP 412.0, Palmdale to Sylmar and Hiland to bottom of both legs
of wye at West Colton.
     This restriction will not apply to locals, road-switchers and
yard engines operating between MP 486.9 and bottom of both legs
of wye at West Colton.
     Maximum tons per operative brake.............................80 tons
Exceptions:
   Unit oil train, BKDOL, with not more than 400 tons
     per axle of dynamic brake, and not exceeding 25
     MPH........................................................................140 tons
   Trains with not more than 400 tons per axle of dynamic
     brake, and not exceeding 20 MPH..............................125 tons
   Trains with not more than 300 tons per axle of dynamic
     brake, and not exceeding 25 MPH..............................125 tons
   Trains with not more than 300 tons per axle of dynamic
     brake, and not exceeding 20 MPH..............................140 tons
   Trains with not more than 225 tons per axle of dynamic
     brake, and not exceeding 30 MPH..............................140 tons
   Trains with not more than 400 tons per axle of dynamic
     brake, and not exceeding 25 MPH, Searles to MP
     412.0.......................................................................140 tons
   Trains with not more than 550 tons per axle of dynamic
     brake, and not exceeding 10 MPH, Oak Creek
     Branch and Searles to MP
     412.0.......................................................................150 tons
     Insufficient dynamic brake capacity or failure of dynamic
brake which results in exceeding these tonnages per axle, is to be
considered as operating without dynamic brake.
     Should dynamic brake failure occur on one or more locomo-
tives resulting in insufficient dynamic brake capacity, train must
stop and all retaining valves turned up. Train may then proceed
not exceeding 15 MPH if, in the judgement of the conductor and
engineer, it is safe to do so.

     RULE 39. Applies at Vincent and Summit Switch and to
eastward trains at Hiland

     RULE 58. Section L. On both legs of wye at West Colton
dynamic brake must not exceed:
          No. of Axles                    Load Meter Amps     
              20 - 24                                  500
          Less than 20                         Maximum

     RULE 65. Maximum Horsepower Per Ton Ratios:
All Westward Trains.........................................................5.0
Eastward Trains (Bakersfield to Summit Switch).................6.0
Eastward Trains (Summit Switch to Los Angeles)...............5.0*
Eastward Trains (Summit Switch to West Colton)...............4.0*
All Other Eastward Trains.................................................5.0

* Reduce to these HP/Ton ratios at first opportunity after
  reaching Summit Switch.


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Friday, 9 April 2004