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RFP 4-8-4 #619 - "Automatic Train Control"
Title:  RFP 4-8-4 #619 - "Automatic Train Control"
Description:  Sporting the "Automatic Train Control" sign is this 1944 Baldwin 4-8-4 Northern built as RFP #619. Much like a very early Positive Train Control system of today, Automatic Train Control was a system designed in 1922 by Union Switch & Signal for the PRR who called it Pulse Code Cab Signal. Itvworked by sending metered pulses along an existing AC track circuit operating at a chosen carrier frequency. The pulses were detected via induction by a sensor hanging a few inches above the rail before the leading set of wheels. The codes would be transmitted to the train from the block limit in front of it. This way if the rail was broken or another train entered the block, any codes would not reach the approaching train and the cab signal would again display "Restricting". No date or photographer was listed for this photo.
Photo Date:  6/1/1950  Upload Date: 3/2/2020 6:07:42 AM
Location:  Alexandria, VA
Author:  Gary Everhart
Categories:  Roster,Yard,Steam
Locomotives:  RFP 619(4-8-4)
Views:  178   Comments: 0
RFP 4-8-4 #619 - "Automatic Train Control"
Title:  RFP 4-8-4 #619 - "Automatic Train Control"
Description:  Here is another view of Richmond, Fredericksburg & Potomac 4-8-4 #619 wearing the "Automatic Train Control" sign denoting the use of Pulse Code Cab Signal system designed by Union Swithc & Signal in 1922 for stopping trains. This early, simplistic system is the forerunner of the modern Postive Train Control system of today. The system is failsafe in that the lack of code would display a Restricting signal. The codes would be transmitted to the train from the block limit in front of it. This way if the rail was broken or another train entered the block, any codes would not reach the approaching train and the cab signal would again display Restricting. No date or photographer was listed for this photo.
Photo Date:  6/1/1950  Upload Date: 3/2/2020 6:07:50 AM
Location:  Alexandria, VA
Author:  Gary Everhart
Categories:  Roster,Yard,Steam
Locomotives:  RFP 619(4-8-4)
Views:  202   Comments: 0
SP&S 4-8-4 700
Title:  SP&S 4-8-4 700
Description: 
Photo Date:  10/20/1957  Upload Date: 10/12/2023 5:32:27 PM
Location:  Vancouver, WA
Author:  Timothy E. Kaufman
Categories: 
Locomotives:  SPS 700(4-8-4)
Views:  102   Comments: 0
SP&S 700
Title:  SP&S 700
Description:  Unknown photographer, from the Ralph L. Phillips collection of the Bay State Model Railroad Museum.
Photo Date:  8/6/1961  Upload Date: 1/18/2023 2:14:34 AM
Location:  Portland, OR
Author:  Unknown
Categories:  Steam
Locomotives:  SPS 700(4-8-4)
Views:  248   Comments: 0
SPS 700
Title:  SPS 700
Description:  SPS 700, prior to restoration
Photo Date:  6/16/1973  Upload Date: 5/23/2015 11:53:18 AM
Location:  Portland, OR
Author:  J Fischer
Categories:  Roster,Steam
Locomotives:  SPS 700(4-8-4)
Views:  1394   Comments: 0
SPS 700
Title:  SPS 700
Description: 
Photo Date:  6/21/1986  Upload Date: 3/28/2009 5:17:52 PM
Location:  Portland, OR
Author:  Douglas Lister
Categories:  Steam
Locomotives:  SPS 700(4-8-4)
Views:  1138   Comments: 0
SPS 700
Title:  SPS 700
Description: 
Photo Date:  6/21/1986  Upload Date: 3/28/2009 5:18:26 PM
Location:  Portland, OR
Author:  Douglas Lister
Categories:  Steam
Locomotives:  SPS 700(4-8-4)
Views:  936   Comments: 0
SPS 700
Title:  SPS 700
Description: 
Photo Date:  6/21/1986  Upload Date: 3/28/2009 5:19:01 PM
Location:  Portland, OR
Author:  Douglas Lister
Categories:  Steam
Locomotives:  SPS 700(4-8-4)
Views:  593   Comments: 0
SPS 700
Title:  SPS 700
Description: 
Photo Date:  6/21/1986  Upload Date: 3/28/2009 5:20:00 PM
Location:  Portland, OR
Author:  Douglas Lister
Categories:  Steam
Locomotives:  SPS 700(4-8-4)
Views:  723   Comments: 0
SPS 700
Title:  SPS 700
Description: 
Photo Date:  6/21/1986  Upload Date: 3/28/2009 5:21:29 PM
Location:  Portland, OR
Author:  Douglas Lister
Categories:  Steam
Locomotives:  SPS 700(4-8-4)
Views:  829   Comments: 0
SPS 700
Title:  SPS 700
Description: 
Photo Date:  6/21/1986  Upload Date: 3/28/2009 5:23:00 PM
Location:  Portland, OR
Author:  Douglas Lister
Categories:  Steam
Locomotives:  SPS 700(4-8-4)
Views:  561   Comments: 0
SPS 700
Title:  SPS 700
Description: 
Photo Date:  6/21/1986  Upload Date: 3/28/2009 5:23:35 PM
Location:  Portland, OR
Author:  Douglas Lister
Categories:  Steam
Locomotives:  SPS 700(4-8-4)
Views:  669   Comments: 0
SPS 700
Title:  SPS 700
Description: 
Photo Date:  6/21/1986  Upload Date: 3/28/2009 5:24:04 PM
Location:  Portland, OR
Author:  Douglas Lister
Categories:  Steam
Locomotives:  SPS 700(4-8-4)
Views:  953   Comments: 2
SP&S 700
Title:  SP&S 700
Description:  BALDWIN 4-8-4
Photo Date:  11/25/1989  Upload Date: 12/17/2013 11:05:01 AM
Location:  Yakima, WA
Author:  Doug Tilley
Categories:  Roster,Steam,Action
Locomotives:  SPS 700(4-8-4)
Views:  1300   Comments: 1
SP&S 700
Title:  SP&S 700
Description:  BALDWIN 4-8-4
Photo Date:  11/25/1989  Upload Date: 12/17/2013 11:07:38 AM
Location:  Yakima, WA
Author:  Doug Tilley
Categories:  Roster,Steam,Action
Locomotives:  SPS 700(4-8-4)
Views:  771   Comments: 0
SP&S 700
Title:  SP&S 700
Description:  BALDWIN 700
Photo Date:  11/25/1989  Upload Date: 12/17/2013 11:08:38 AM
Location:  Yakima, WA
Author:  Doug Tilley
Categories:  Roster,Steam,Action
Locomotives:  SPS 700(4-8-4)
Views:  1314   Comments: 0
SP&S 700
Title:  SP&S 700
Description:  BALDWIN 4-8-4
Photo Date:  11/25/1989  Upload Date: 12/17/2013 11:10:30 AM
Location:  Yakima, WA
Author:  Doug Tilley
Categories:  Roster,Steam,Action
Locomotives:  SPS 700(4-8-4)
Views:  1322   Comments: 0
SP&S 700
Title:  SP&S 700
Description:  BALDWIN 4-8-4
Photo Date:  11/25/1989  Upload Date: 12/17/2013 11:11:21 AM
Location:  Yakima, WA
Author:  Doug Tilley
Categories:  Roster,Steam,Action
Locomotives:  SPS 700(4-8-4)
Views:  514   Comments: 0
SP&S 700
Title:  SP&S 700
Description:  BALDWIN 4-8-4
Photo Date:  11/25/1989  Upload Date: 12/17/2013 11:05:58 AM
Location:  Yakima, WA
Author:  Doug Tilley
Categories:  Roster,Steam,Action
Locomotives:  SPS 700(4-8-4)
Views:  1246   Comments: 1
SP&S 700
Title:  SP&S 700
Description:  BALDWIN 4-8-4
Photo Date:  11/25/1989  Upload Date: 12/17/2013 11:06:53 AM
Location:  Yakima, WA
Author:  Doug Tilley
Categories:  Roster,Steam,Action
Locomotives:  SPS 700(4-8-4)
Views:  1293   Comments: 0
SPS 700
Title:  SPS 700
Description:  SP&S 700 leads a charter westbound up the Yakima River Canyon
Photo Date:  9/15/1990  Upload Date: 3/18/2017 9:08:47 PM
Location:  Morton, WA
Author:  J Fischer
Categories: 
Locomotives:  SPS 700(4-8-4)
Views:  616   Comments: 1
SP&S 700
Title:  SP&S 700
Description:  At the old NP Depot on a cool October morning.
Photo Date:  10/18/1990  Upload Date: 10/24/2011 2:42:20 PM
Location:  Kennewick, WA
Author:  Jeff Hollingshead
Categories:  Station,Steam,Action
Locomotives:  SPS 700(4-8-4)
Views:  656   Comments: 0
SP&S 700
Title:  SP&S 700
Description:  At the old NP Depot on a cool October morning.
Photo Date:  10/18/1990  Upload Date: 10/24/2011 2:48:27 PM
Location:  Kennewick, WA
Author:  Jeff Hollingshead
Categories:  Station,Steam,Action
Locomotives:  SPS 700(4-8-4)
Views:  930   Comments: 0
SP&S 700
Title:  SP&S 700
Description:  SP&S 700 Steam 4-8-4 leads passenger excursion to Prosser, WA
Photo Date:  10/18/1990  Upload Date: 10/24/2011 12:01:13 PM
Location:  Kennewick, WA
Author:  Jeff Hollingshead
Categories:  Steam,Passenger,Action
Locomotives:  SPS 700(4-8-4)
Views:  844   Comments: 0
SPS 700
Title:  SPS 700
Description:  SPS 700 rests after a long day as seen in a time exposure taken after dark
Photo Date:  4/20/2001  Upload Date: 8/12/2016 7:55:15 PM
Location:  Pasco, WA
Author:  J Fischer
Categories:  Scenic,Night,Yard,Station,Steam
Locomotives:  SPS 700(4-8-4)
Views:  464   Comments: 0
SPS 700
Title:  SPS 700
Description:  SP&S 700 pauses to disembark passengers for an upcoming run by. I had a flat tire, so I wasn't going anywhere
Photo Date:  4/20/2001  Upload Date: 3/21/2017 7:34:26 PM
Location:  Avery, WA
Author:  J Fischer
Categories:  Roster,Steam,Passenger,Action
Locomotives:  SPS 700(4-8-4)
Views:  766   Comments: 1
SPS 700
Title:  SPS 700
Description:  SP&S 700 leads a photo run by through the west switch, eastbound, in the mid day
Photo Date:  4/20/2001  Upload Date: 3/21/2017 7:34:50 PM
Location:  Avery, WA
Author:  J Fischer
Categories:  Steam,Signal,Passenger,Action
Locomotives:  SPS 700(4-8-4)
Views:  324   Comments: 1
SPS 700
Title:  SPS 700
Description:  SP&S 700 leads a photo run by through the west switch, eastbound, in the mid day
Photo Date:  4/20/2001  Upload Date: 3/21/2017 7:35:17 PM
Location:  Avery, WA
Author:  J Fischer
Categories:  Station,Signal,Passenger,Action
Locomotives:  SPS 700(4-8-4)
Views:  434   Comments: 1
SPS 700
Title:  SPS 700
Description:  SP&S 700 is being serviced after a long day of service
Photo Date:  4/20/2001  Upload Date: 3/21/2017 7:35:51 PM
Location:  Avery, WA
Author:  J Fischer
Categories:  Roster,Night,Yard,Station,Steam
Locomotives:  SPS 700(4-8-4)
Views:  615   Comments: 1
SPS 700
Title:  SPS 700
Description:  SP&S 700 splits the signals at the west end of the siding in the early afternoon
Photo Date:  4/20/2001  Upload Date: 8/12/2016 9:16:40 PM
Location:  Avery, WA
Author:  J Fischer
Categories:  Steam,Signal,Passenger,Action
Locomotives:  SPS 700(4-8-4)
Views:  354   Comments: 2
SPS 700
Title:  SPS 700
Description:  SP&S 700 rumbles up the former NP under her own power shortly before her epic meltdown, in the early morning
Photo Date:  4/21/2001  Upload Date: 8/12/2016 7:58:40 PM
Location:  Connell, WA
Author:  J Fischer
Categories:  Steam,Action
Locomotives:  SPS 700(4-8-4)
Views:  466   Comments: 1
Stall Mates;
Title:  Stall Mates;
Description:  Two 4-8-4s rest inside the old Brooklyn St. RH.
Photo Date:  6/26/2002  Upload Date: 2/20/2014 9:03:19 AM
Location:  Portland, OR
Author:  Karl Rethwisch
Categories:  Steam
Locomotives:  SPS 700(4-8-4) SP 4449(4-8-4)
Views:  850   Comments: 1
SP&S 700
Title:  SP&S 700
Description:  SP&S 700 and the Steamin' Across the Montana Rockies Tour train at Fish Creek, MT.
Photo Date:  10/11/2002  Upload Date: 8/9/2011 10:43:02 PM
Location:  Fish Creek, MT
Author:  Robert Jenkins
Categories:  Scenic,Steam,Passenger,Action
Locomotives:  SPS 700(4-8-4)
Views:  928   Comments: 0
SP&S-700 on the MRL
Title:  SP&S-700 on the MRL
Description:  SP&S-700 leads the Steamin Across the Montana Rockies tour train past the old barn at Jens, MT
Photo Date:  10/12/2002  Upload Date: 5/27/2011 8:42:45 PM
Location:  Jens, MT
Author:  Robert Jenkins
Categories:  Scenic,Steam,Passenger,Action
Locomotives:  SPS 700(4-8-4)
Views:  1443   Comments: 4
SP&S 700
Title:  SP&S 700
Description:  SP&S 700 with the Steamin' Across the Montana Rockies Tour train blasting out of Garrison, MT
Photo Date:  10/12/2002  Upload Date: 8/9/2011 9:57:23 PM
Location:  Garrison, MT
Author:  Robert Jenkins
Categories:  Roster,Scenic,Steam,Passenger,Action
Locomotives:  SPS 700(4-8-4)
Views:  1312   Comments: 4
SP&S-700
Title:  SP&S-700
Description:  SP&S-700 with the Montana Rockies Daylight Tour train enters the yards at Missoula, MT
Photo Date:  10/16/2002  Upload Date: 1/30/2012 9:46:08 PM
Location:  Missoula, MT
Author:  Robert Jenkins
Categories:  Scenic,Yard,Steam,Passenger,Action
Locomotives:  SPS 700(4-8-4)
Views:  932   Comments: 2
SPS 700
Title:  SPS 700
Description: 
Photo Date:  1/1/2004  Upload Date: 12/21/2004 10:39:56 PM
Location:  Vancouver Junction, WA
Author:  ryan mishler
Categories: 
Locomotives:  SPS 700(4-8-4)
Views:  1403   Comments: 1
SP&S 700
Title:  SP&S 700
Description:  SP&S 700 on the turntable at the Brooklyn Roundhouse Portland, OR
Photo Date:  12/19/2004  Upload Date: 5/14/2005 12:51:22 PM
Location:  Portland, OR
Author:  Robert Ulberg
Categories: 
Locomotives:  SPS 700(4-8-4)
Views:  1021   Comments: 0
SP&S 700
Title:  SP&S 700
Description:  SP&S 700 at Vancouver, WA
Photo Date:  12/19/2004  Upload Date: 1/6/2005 8:26:01 PM
Location:  Vancouver, WA
Author:  Robert Ulberg
Categories: 
Locomotives:  SPS 700(4-8-4)
Views:  972   Comments: 0
SP&S 700
Title:  SP&S 700
Description:  SP&S 700 at Vancouver, WA
Photo Date:  12/19/2004  Upload Date: 1/6/2005 8:30:54 PM
Location:  Vancouver, WA
Author:  Robert Ulberg
Categories: 
Locomotives:  SPS 700(4-8-4)
Views:  1142   Comments: 0
SP&S 700
Title:  SP&S 700
Description:  SP&S 700 at Vancouver, WA
Photo Date:  12/19/2004  Upload Date: 1/6/2005 8:34:09 PM
Location:  Vancouver, WA
Author:  Robert Ulberg
Categories: 
Locomotives:  SPS 700(4-8-4)
Views:  2276   Comments: 0
SP&S  700
Title:  SP&S 700
Description:  SP&S 700 at Vancouver, WA
Photo Date:  12/19/2004  Upload Date: 1/6/2005 8:36:45 PM
Location:  Vancouver, WA
Author:  Robert Ulberg
Categories: 
Locomotives:  SPS 700(4-8-4)
Views:  853   Comments: 0
SP&S 700
Title:  SP&S 700
Description:  SP&S 700 at Vancouver, WA
Photo Date:  12/19/2004  Upload Date: 1/6/2005 8:39:57 PM
Location:  Vancouver, WA
Author:  Robert Ulberg
Categories: 
Locomotives:  SPS 700(4-8-4)
Views:  5967   Comments: 0
SP&S  700
Title:  SP&S 700
Description:  SP&S 700 at Vancouver, WA
Photo Date:  12/19/2004  Upload Date: 1/6/2005 8:43:28 PM
Location:  Vancouver, WA
Author:  Robert Ulberg
Categories: 
Locomotives:  SPS 700(4-8-4)
Views:  1047   Comments: 0
BNSF 5273 alongside SP & S 700
Title:  BNSF 5273 alongside SP & S 700
Description:  New vs. Old
Photo Date:  2/8/2005  Upload Date: 2/8/2005 8:53:43 PM
Location:  Livingston, MT
Author:  Patrick Petroff
Categories: 
Locomotives:  BNSF 5273(C44-9W) SPS 700(4-8-4)
Views:  1301   Comments: 0
SP & S 700
Title:  SP & S 700
Description: 
Photo Date:  2/8/2005  Upload Date: 2/8/2005 8:43:39 PM
Location:  Livingston, MT
Author:  Patrick Petroff
Categories: 
Locomotives:  SPS 700(4-8-4)
Views:  1363   Comments: 1
SP & S 700
Title:  SP & S 700
Description: 
Photo Date:  2/8/2005  Upload Date: 2/9/2005 12:00:50 AM
Location:  Livingston, MT
Author:  Patrick Petroff
Categories: 
Locomotives:  SPS 700(4-8-4)
Views:  958   Comments: 1
SP&S 700
Title:  SP&S 700
Description:  At Riverfront Park in Salem, OR.
Photo Date:  5/14/2005  Upload Date: 1/7/2006 5:48:32 PM
Location:  Salem, OR
Author:  Keith Owen
Categories: 
Locomotives:  SPS 700(4-8-4)
Views:  525   Comments: 0
SP&S 700
Title:  SP&S 700
Description:  My son, Bryan, and grandson, Damen, in front of SP&S 700.
Photo Date:  5/14/2005  Upload Date: 1/7/2006 5:50:46 PM
Location:  Salem, OR
Author:  Keith Owen
Categories: 
Locomotives:  SPS 700(4-8-4)
Views:  525   Comments: 0
The Littlest Brakeman
Title:  The Littlest Brakeman
Description:  My grandson, Damen, on the front step of SP&S 700
Photo Date:  5/14/2005  Upload Date: 1/7/2006 5:51:09 PM
Location:  Salem, OR
Author:  Keith Owen
Categories: 
Locomotives:  SPS 700(4-8-4)
Views:  746   Comments: 0


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