UtahRails.net

(This page printed from UtahRails.net, Copyright 2000-2016 Don Strack)

UPY Yard Slugs and Road Slugs

(List of UP's UPY 100-series CCRCL, Control Car, Remote Control units)

Yard Slug Model SL-1 -- 23 units
B-B trucks; 256,000 pounds operating weight

Road
Number
Previous
Number
Date To
UP S Series
Number
Date To
UPY Number
Date
Retired
Notes
UPY 903 UP S9 19 Aug 1986 10 May 2003 25 Feb 2009  
UPY 904 UP S10 30 Sep 1986 1 Sep 2000 25 Feb 2009 1
UPY 905 UP S11 13 Jul 1990 6 Mar 2002 15 May 2009  
(UPY 906) UP S12 29 Jan 1988      
(UPY 907) UP S13 29 Jan 1987   (22 Jan 2002) 2
(UPY 908) UP S14 16 Mar 1988   (31 Aug 2000)  
(UPY 909) UP S15 27 Jan 1988   (31 Aug 2000)  
UPY 910 UP S16 21 Aug 1988 12 Feb 2003    
UPY 911 UP S17 21 Aug 1988 22 Apr 2002    
(UPY 912) UP S18 3 Oct 1988      
UPY 913 UP S19 11 Nov 1986 13 Feb 2004    
(UPY 914) UP S20 25 Sep 1986   (29 Nov 2000) 3
UPY 915 UP S21 10 Jan 1986 6 Nov 2003    
UPY 916 UP S22 10 Mar 1986 11 Mar 2002 15 May 2009  
(UPY 917) UP S23 11 Mar 1986      
(UPY 918) UP S24 26 Dec 1985      
(UPY 919) UP S25 31 Mar 1986      
(UPY 920) UP S26 19 Oct 1987   (19 Dec 2000) 4
UPY 921 UP S27 28 Jan 1988 23 Mar 2001   5
(UPY 922) UP S28 3 Oct 1988      
UPY 923 UP S29 30 Sep 1988 11 Oct 2001 14 Feb 2002 6
UPY 924 UP S30 9 Sep 1988 20 May 2000    
UPY 925 UP S31 1 Feb 1988 18 Feb 2000 29 Jan 2009 7

General Notes:

a. Rebuilt from retired MP SW7s, SW8s, and SW9s by MP's Pike Avenue Shops, North Little Rock, Arkansas; mated with former MP MP15s, and GP38-2s (after October 1990).
b. UPY 904 was equipped with EMD Flexicoil trucks at the time of its sale to Juniata Terminal in April 2009.
c. Individual unit histories:
  Road
Number
First
Number
Second
Number
Rebuild
Date
Rebuilt
From
Date To
MP Yellow
  UPY 903 MP 1400 UP S9 30 Dec 1978 MP SW7 1206  
  UPY 904 MP 1401 UP S10 1 Mar 1979 MP SW8 8003  
  UPY 905 MP 1402 UP S11 Jun 1979 MP SW8 8001  
  UPY 906 MP 1403 UP S12 Sep 1979 MP SW8 8007  
  UPY 907 MP 1404 UP S13 May 1980 MP SW8 8002  
  UPY 908 MP 1405 UP S14 Jun 1980 MP SW7 1214  
  UPY 909 MP 1406 UP S15 Jul 1980 MP SW8 8000  
  UPY 910 MP 1407 UP S16 Aug 1980 MP SW7 1211 26 May 1985
  UPY 911 MP 1408 UP S17 Sep 1980 MP SW7 1213 2 Jul 1985
  UPY 912 MP 1409 UP S18 Oct 1980 MP SW8 8004 16 May 1985
  UPY 913 MP 1410 UP S19 Nov 1980 MP SW9 1228  
  UPY 914 MP 1411 UP S20 Dec 1980 MP SW7 1210  
  UPY 915 MP 1412 UP S21 Dec 1980 MP SW9 1221  
  UPY 916 MP 1413 UP S22 Apr 1981 MP SW9 1235  
  UPY 917 MP 1414 UP S23 May 1981 MP SW8 8006  
  UPY 918 MP 1415 UP S24 Jul 1981 MP SW7 1204  
  UPY 919 MP 1416 UP S25 Aug 1981 MP SW8 8005  
  UPY 920 MP 1417 UP S26 Sep 1981 MP SW9 1215  
  UPY 921 MP 1418 UP S27 Oct 1981 MP SW7 1212  
  UPY 922 MP 1419 UP S28 Oct 1981 MP SW9 1219  
  UPY 923 MP 1420 UP S29 Nov 1981 MP SW9 1217  
  UPY 924 MP 1421 UP S30 Dec 1981 MP SW9 1218  
  UPY 925 MP 1422 UP S31 Jan 1982 MP SW9 1220  

Notes:

1. UPY 904 was sold at auction on 2 April 2009 at San Antonio, Texas; sold to Juniata Terminal at Philadelphia, Pennsylvania, numbered as 8850; seen en route on 4 May 2009 at Camden, New Jersey.
2. UP S13 (assigned UPY 907) was converted to CCRCL control cab unit and renumbered to UPY 102 on 22 January 2002.
3. UP S20 (assigned UPY 914) was converted to CCRCL control cab unit and renumbered to UPY 100 on 10 December 2001.
4. UP S26 (assigned UPY 920) was converted to CCRCL control cab unit and renumbered to UPY 101 on 22 January 2002.
5. UPY 921 was converted to CCRCL control cab unit and renumbered to UPY 104 on 21 February 2002.
6. UPY 923 was converted to CCRCL control cab unit and renumbered to UPY 103 on 14 February 2002.
7. UPY 925 (ex UP S31) was the first unit in this group to be renumbered, completed on 18 February 2000.
   

Road Slug Model S4-B -- 1 unit
B-B trucks; 249,000 pounds operating weight

Road
Number
Previous
Number
Date To
S300
Date To
UPY 926
Notes
UPY 926 UP S300 1 Feb 1991 17 Dec 2003 Renumbered to UP S926 on 12 October 2007.

General Notes:

a. Built as MKT road slug 501 from wrecked MKT GP40 222; renumbered and repainted to UP S50 on 20 March 1989, at the same time as matching GP40 slug control units, UP 595 and 596 (ex MKT 226, 227), which are now UP 3000 and 3001.
b. Operated with UP 3000 and 3001, former MKT GP40s.
c. Model was changed from SL-1 to S4-B on 14 April 1992; changed from freight service to switching service on same date.
d. Unit history:
  Road
Number
First
Number
Second
Number
Third
Number
Rebuild
Date
Rebuilt
From
Date To
S50
Date To
S300
  UPY 926 MKT 501 UP S50 UP S300 Jul 1982 MKT GP40 222 20 Mar 1989 1 Feb 1991
                 

Road Slug Model S5-2B -- 3 units
B-B trucks; 256,000 pounds operating weight

Road
Number
First
Number
Rebuild
Date
Rebuilt
From
Date To
UPY Number
Date
Retired
Notes
UPY 927 UP S301 5 Apr 1991 KCS GP30 4104 30 Apr 2001   Renumbered to UP S927 on 12 October 2007.
UPY 928 UP S302 5 Apr 1991 KCS GP30 4108 29 Mar 2001 8 Apr 2009  
UPY 929 UP S303 5 Apr 1991 KCS GP30 4119 19 Feb 2002    

General Notes:

a. Rebuilt from retired KCS GP30s by Morrison Knudsen, Boise, Idaho.
b. Equipped with 2,600 gallon fuel tanks, and pumping equipment to transfer fuel between slug and attached slug control units; sensing monitors activate the pumps to keep fuel level equalized between the control units and the slug.
c. All three road slugs operate with UP (former WP) GP40-2 slug control units.
d. All three road slugs were renumbered from their S300-series numbers, to their UPY numbers at the same time that their assigned control units were renumbered from their 3000-series numbers to their new 1500-series numbers; these road slug were assigned to the comparably equipped GP40-2 control units as follows: UP 1535/UPY 929/UP 1536; UP 1537/UPY 927/UP 1538; UP 1539/UPY 928/UP 1540.
e. During 2005, all three slug sets were assigned to the Corbyn Yard/New Brunfels area near San Antonio, Texas.
   

Road Slug Model S3-2B -- 8 units
B-B trucks; 280,000 pounds operating weight

Road
Number
First
Number
Second
Number
Rebuild
Date
Rebuilt
From
Date To
S311 Series
Date To
UPY Number
Date
Retired
Notes
(UPY 931) SP 1601 (UP S311) 1 May 1981 SP U25B 6761     25 Jul 2000  
UPY 932 SP 1605 UP S313 Aug 1981 SP U25B 6747 19 Jan 1998 14 Jan 2004    
(UPY 933) SP 1606 (UP S314) Sep 1981 SP U25B 6712     28 Dec 1999  
(UPY 934) SP 1608 (UP S315) Nov 1981 SP U25B 6711     25 Jul 2000  
(UPY 935) SP 1609 (UP S316) Dec 1981 SP U25B 6713     25 Jul 2000  
UPY 936 SP 1611 UP S318 Mar 1982 SP U25B 6754 27 Jul 1999 14 Jan 2004    
UPY 937 SP 1612 UP S319 May 1982 SP U25B 6758 18 Sep 1997 29 Aug 2003   1
(UPY 938) SP 1613 (UP S320) Jun 1982 SP U25B 6766     25 Jul 2000  

General Notes:

a. Original total of 13 SP units; 10 units went to UP at merger; SP retired three units (SP 1603, 1604, and 1607) prior to the merger.
b. Built by Southern Pacific in their own Sacramento (Calif.) shops from the road's own retired U25Bs.
c. Equipped with 2900-gallon fuel tank and pumping equipment to transfer fuel from the slug and the attached control units; sensing monitors activate the pumps to keep the fuel level equalized between the control units and the road slug.
d. Former SP designation was TEBU (Tractive Effort Booster Unit).
e. Equipped to operate with former SP 7940-7959 group GP40-2s (built in April and May 1980) and former SSW 7960-7966 group GP40s (rebuilt in 1981 and 1982).
f. SP 1601, 1608, 1609, 1613 stored by UP at North Platte, Nebraska, during late 1998.
g. SP 1602 (assigned UP S312) was retired on 28 April 1997; sold to National Railway Equipment in July 1997.
h. SP 1610 (assigned UP S317) was retired on 28 April 1997; sold for scrap to Louisville Scrap, 28 February 1998.

Note:

1. UPY 937, as UP S319 (ex SP 1612) was the first of this group to be repainted to the UP S311-S320 group, completed on 18 September 1997.
   

Road Slug Model S6-1B (GP50 body) -- 2 units
B-B trucks; ???? pounds operating weight

Road
Number
First
Number
Second
Number
Rebuild
Date
Date To
UPY Number
Notes
UPY 939 MP 3517 UP 977 Jun 2003 1 Jul 2003 1
UPY 940 MP 3503 UP 963 Nov 2003 26 Nov 2003 2

General Notes:

a. Rebuilt from former MP GP50s.

Note:

1. UPY 939 was rebuilt from retired former MP GP50 977, which was retired in July 2002 and set aside in April 2003 for conversion to an S6-1B road slug; rebuilt to S6-1B slug in June 2003 and renumbered to UPY 939 on 1 July 2003.
2. UPY 940 was rebuilt from retired former MP GP50 963, which was retired in December 2003 and set aside for conversion to an S6-1B road slug; renumbered to S6-1B UPY 940 on 26 November 2003.

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