80s Mac
EMD SD80 Series
Type and originPower typeDiesel-electricBuilderGeneral Motors Electro-Motive Division(EMD)ModelSD80MAC, SD80ACeBuild date1995–1996 (SD80MAC), 2011– (SD80ACe)Total produced30 (SD80MAC) + 7 (SD80ACe)
SpecificationsConfiguration:
• AARC-C • UICCo'Co'Gauge4 ft 81⁄2 in (1,435 mm) standard gaugeTrucksEMD HTCR IIWheel diameter45 in (1,143 mm)Length80 ft 2 in (24.43 m)(80MAC)
76 ft 6 in (23.32 m)(80ACe)Height15 ft 5 in (4.70 m)(80MAC)
15 ft 10 in (4.83 m)(80ACe)Loco weight420,000 lb (191,000 kg)(80MAC)
432,500 lb (196,000 kg)(80ACe)Fuel capacity5,800 US gal (22,000 l; 4,800 imp gal)(80MAC)
4,900 US gal (19,000 l; 4,100 imp gal)(80ACe)Prime moverEMD 20-710G3B-ES(80MAC)
EMD 20-710G3C-ES(80ACe)Engine typeCylinders20Transmissiondiesel electric
Performance figuresMaximum speed75 mph (121 km/h)Power output5,000 hp (3.7 MW)(80MAC)
5,300 hp (4.0 MW)(80ACe)Tractive effortStarting (80MAC): 185,000 lbf (822.92 kN)
Continuous (80MAC): 147,000 lbf (653.89 kN)
Starting (80ACe): 191,000 lbf (849.61 kN)
CareerOperatorsConrail, Norfolk Southern, CSXClassNS 7200–7228, Vale 101-107DispositionSix sold to Canadian Pacific Railway as part source, remaining units sold to Progress Rail
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Mcculloch 3214 Chainsaw Parts Diagram
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The SD80MAC is a 5,000 horsepower (3.7 MW) C-Croad switcherdiesel-electric locomotive. The model uses a 20-cylinder version of EMD's 710G prime mover, and is the first diesel locomotive to use a 20-cylinder engine since EMD's SD45 and SD45-2. It introduced a wide radiator housing similar to GE Transportation locomotives and the placement of dynamic brakes at the rear of the locomotive, which is a quieter location, features that were incorporated into the SD90MAC and SD70ACe models. Key spotting difference between the SD80MAC and SD90MAC include no external rear sandbox on the SD90MAC, rear number boards, and the placement of the front numberboards (above the cab windows on the SD80MAC, on the nose on most SD90MACs). The SD80MAC also has recessed red marker lights in the nose, an identifying feature unique to Conrail locomotives, although Norfolk Southern (NS) has removed the lights on most of their former Conrail engines.
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All 30 SD80MAC units built were delivered to Conrail, and the 28 production units were completed, tested, and painted at the former Pennsylvania Railroad shops in Altoona, Pennsylvania.
Prior to the 1995 merger with Union Pacific, Chicago and North Western Railway had placed an order of 15 locomotives. Canadian Pacific had placed an order as well but that order was changed to SD90MACs. Conrail had planned a second order of SD80MACs, but its new owners changed the order to SD70s and SD70MACs, all of which would be built at the Juniata Shops in Altoona.
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Vale Mining of Brazil ordered a set of 7 updated locomotives designated as the SD80ACe model. These locomotives feature Tier 1 compliant 20-710G3C engines. The design is currently for export only, and these specific locomotives will run on Vale Mining's 5 ft 3 in (1,600 mm) broad gauge trackage.
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After the split of Conrail, the SD80MACs were split up between the Norfolk Southern Railway and CSX Transportation. Norfolk Southern received 17 units (numbered 7200–7216) while CSX got 13 (800–812, being renumbered to 4590–4602). The former Conrail units were the first AC traction locomotives owned by Norfolk Southern, with the railroad not ordering more until late 2008 with an order of General Electric's ES44AC. In late 2014, Norfolk Southern announced that they had reached an agreement with CSX Transportation to trade 12 EMD SD40-2 units (NS 3425-3447) for CSX's remaining 12 SD80MACs, leaving NS as the model's sole operator. They were delivered to the NS in April 2015.
In February 2020, Norfolk Southern sold all 29 of its remaining SD80MACs to Canadian Pacific Railway and Progress Rail. Six units, 7206, 7215, 7218, 7225, 7226 and 7227 were sold to Canadian Pacific Railway as parts sources for their recent EMD SD70ACU rebuilds. The remainder of the NS fleet went to Progress Rail.
Ex-CSX 4594, formerly CSX 804, and built as CR 4110, was scrapped in January 2014 after being used as a parts donor following a derailment in early 2009.
SD80MAC technical details(edit)
The technical details of this locomotive model are as follows:(1)
Prime mover
Electro-Motive Diesel V-20710G3B-ES
Displacement: 14,200 cubic inches (233 L)
Idle: 200 rpm
Full speed: 904 rpm
Lube oil capacity: 510 US gal (1,900 l; 420 imp gal)
Cooling water capacity: 342 US gal (1,290 l; 285 imp gal)
Fuel capacity: 5,800 US gal (22,000 l; 4,800 imp gal)
Main alternator
Electro-Motive Diesel TA22-CA8A
Maximum voltage: 2600 VDC
Maximum current: 8100 A
Traction motors
6 Siemens 1TB2830 AC motors mounted 3 each on 2 HTCR-2 Radial Self Steering trucks.
Rated output: 638 kW (856 hp)
Gearing: 83:16
Wheel size: 45 in (1,143 mm)
Max revolutions: 3,435 rpm
Starting torque: 16,300 N⋅m (12,000 lbf⋅ft)
Continuous torque: 12,900 N⋅m (9,500 lbf⋅ft)
Maximum voltage: 2,183 V
Performance
Maximum speed: 75 mph (121 km/h)
Starting tractive effort: 185,000 lbf (820 kN)
Continuous tractive effort: 147,000 lbf (650 kN)
Braking effort: 96,000 lbf (430 kN))
Weight: 210 short tons (187.5 long tons; 190.5 t); 420,000 lb (190,500 kg))
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References(edit)
Mcculloch 3214 Chainsaw Parts Diagram
'EMD SD80ACe Specifications'(PDF). EMD and Progress Rail. Archived from the original(PDF) on 24 September 2015.
Electo-Motive Division of General Motors (1996). SD80MAC Operator's Manual 1st Edition February 1996. Electo-Motive Division of General Motors.
^Siemens. 'Diesel-Electric Locomotive SD80MAC with Three-Phase Drive'(PDF). Archived from the original(PDF) on 14 November 2004.
Retrieved from 'https://en.wikipedia.org/w/index.php?title=EMD_SD80MAC&oldid=988286359'
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Day 17: EMD SD70ACe
Info from Wikipedia:
The SD70ACe is the successor to the SD70MAC with design changes to comply with emission standards. The engine fires with 15% lower internal pressure to improve emissions and features fewer internal components in the inverter. SD70ACe is equipped with EMD's 16-710-G3C-T2 prime mover, rated at 4,300 horsepower (3,200 kW); later Tier 3 models are rated at 4,500 horsepower (3,400 kW), and have a thermal efficiency of almost 36%. They are rated at 157,000 lbf (700 kN) continuous tractive effort (191,000 lbf (850 kN) starting). Braking effort is rated at 106,000 lbf (470 kN). Early Models featured a bad cab design which was noticed first on CSX as crews reported annoying disturbances such as prime mover noises, traction motors and more. The cab also rattle and many railroads received this defective units like, Union Pacific, CSX, Norfolk Southern, BNSF Railway and Kansas City Southern. These were called "Thundercabs" because of their sound. They are more common on Norfolk Southern and Union Pacific. To tell them apart, Thundercabs have their headlights on top and sideways instead of on the nose. These units are also not approved for leading trains. on BNSF, It is very rare to see these leading. On Union Pacific it is a common occurrence on intermodal trains to Chicago.
In 2012, EMD also built four models known as the SD70ACe-P6. These units, unlike previous SD70ACe's, have one inverter per axle on the trucks, rather than EMD's traditional one inverter per truck design. Four of those ( EMDX 1206,1208,1209 and 1210) were sold to Canadian National Railway and renumbered to CN 8100-8103.
In 2014, BNSF Railway took delivery of 20 SD70ACe-P4 units, numbered 8500 - 8519. This model was designed with a B1-1B wheel arrangement to compete with GE's ES44C4 model, which has an A1A-A1A wheel arrangement. Both wheel arrangements mean that there are only two traction motors per truck instead of three, those being the ones next to the fuel tank. Two SD70ACe-P4 demonstrators began a 5-year lease at Tacoma Rail in late 2014.
On January 1, 2015, the United States Environmental Protection Agency's Tier 4 locomotive emission regulations went into effect. EMD could not successfully modify the SD70ACe's 2-stroke 710 series prime mover to be Tier 4-compliant; thus, the Tier 3 SD70ACe was succeeded by the SD70ACe-T4 in late 2015. However, US production of the Tier 3-compliant SD70ACe continues with Tier 4 'credit units' (new Tier 3-compliant units EMD is entitled to build based on previously-earned emissions credits). Union Pacific and Norfolk Southern are currently the only US roads to own Tier 4 credit unit SD70ACe's. Additionally, EMD has continued building Tier 3 SD70ACe's for Ferromex (4100-4118), Ferrosur (4119-4133), and Kansas City Southern de Mexico (4200-4224) at Bombardier Ciudad Sahagun. These locomotives are restricted to Mexico-only operation and cannot cross the US border (just as Canadian National's newest Tier 3 GE ES44AC's are restricted to Canadian use only).
In March 2016, EMD replaced the standard cast HTCR-4 trucks on NS SD70ACe 1000 with the new fabricated HTCR-6 trucks for testing. UP and BNSF plan to test the new HTCR-6 trucks on some of their SD70ACe units also.
Union Pacific received 281 additional SD70ACe units, numbered 8824 - 9104, in 2014, 2016 and 2018. These are referred to as SD70AH (T4C), H for "heavy", because they are ballasted to 428,000 lb (194,138 kg) rather than 420,000 lb (190,509 kg).
In mid-2021, Yakutian Railways received two SD70ACes, designated 2TE3250 (Russian: 2ТЭ3250) and numbered 0001 and 0002. They are currently in use in Yakutia.
models and route by: Sporbust, JointedRail, Auran, and Download Station
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