I am tempted to pose this while I'm thinking of a better question:
In the timeframe of a recent question, a railroad featuring prominently in a recent question tested the same number and general type of locomotive in a recent question on an infamous line mentioned in several recent questions.
As far as I've seen, only one fairly obscure reference mentions this test as having been conducted. You'll get credit for the railroad and the line, but you'd likely need to find particulars of the two locomotives to do it...
Guessing does NOT count.
To you, Overmod...
Overmod The ever-popular, often penurious CHICAGO GREAT WESTERN.
The ever-popular, often penurious CHICAGO GREAT WESTERN.
For some reason CGW only bought a couple of GP7s, delivered right after the last F7Bs, but with lower EMD order numbers.
OvermodThe reason for the 'excess' brake shoe wear (and why it was solved this peculiar way) was the riding characteristics of the switcher trucks on these units when 'road speed' was needed as the units ran downgrade light.
This midwestern railroad bought A-B-A F3 sets in 1947 and 1948, coming back to EMD for "F5" and F7 B-units in 1949 and 1950, along with some F7A "singles". Its last order for F-units came in 1951, starting with an A-B-B-A FP7A/F7B set, and ending with four more F7Bs, three of them boiler-equipped. The boiler F7Bs allowed the final retirement of steam on mainline passenger trains, where one was paired with a "freight" F7. The FP7 set probably never ran as anything other than as two FP7/F7B pairs, and the FP7s often ran as single units.
In the practice in use at the time units were numbered as if they were part of a single locomotive. Since the initial orders were for A-B-A sets, cabs were -A and -C, boosters -B, with the "extra" boosters added to the original sets as -D. The three extra passenger boosters were "added" to the FP7 set, resulting in a seven-unit locomotive, the new units getting -E, -F and -G suffixes.
As built, none of the F3, F7 or FP7 units had nose MU, affecting how they were later used in freight service. Name the railroad.
rcdryeUnion Pacific retfrofitted 2400 HP TR5 cow-calf units (cabs only) with EMD-designed dynamic brakes in 1952 and 1953.
Thought he'd get it... that's it to a T (TR,that is...)
The reason for the 'excess' brake shoe wear (and why it was solved this peculiar way) was the riding characteristics of the switcher trucks on these units when 'road speed' was needed as the units ran downgrade light.
Union Pacific retfrofitted 2400 HP TR5 cow-calf units (cabs only) with EMD-designed dynamic brakes in 1952 and 1953. The pairs were used in helper service on grades in southern California and Nevada. Excessive brake shoe wear on light, downbound trips led to the change, but also explains why only the cabs were so fitted. The dynamic brake equipment was deactivated some time around 1956, but remained in place until rebuilds for other purposes caused its removal.
That's pretty standard dynamic braking, for train braking purposes. I'll grant you the recovery of braking heat in the Rankine cycle is a valuable and desirable thing.
The locomotives I'm after, though, are reasonably straightforward diesel-electrics.
Maybe, perhaps:
Another advanced feature was dynamic brakes, where some (or most) braking is created by running the traction motors in reverse as generators, and then dissipating that electric power in resistors to produce heat. In this case, the heat was generated in the locomotive as opposed to the roof-top open-air coolers on most modern locomotives. The resistors were cooled by water from the steam loop, thus heating it. This allowed the braking energy to be recaptured into motive power, or as it is more typically known, offered regenerative braking.[6]
A well-known railroad installed dynamic braking on part of some unusual locomotives for an unusual stated reason. What was that reason, and the technical issues that led to the decision?
Spruce
All of this from Mike!
Flight International
The Signal Corps' "Spruce Production Division" opened operations in October 1917, with the goal of producing 30 million board feet of aircraft-quality spruce per month, a goal which was achieved in October 1918, just in time for the Armistice. Many of the crews were enlisted in the Army, and some even wore uniforms.
The four "permanent" and nine "temporary" railorads were operated either directly by the Signal Corps or by contracting logging firms. The last of the lines, one of the "temporary" ones, operated as the non-common-carrier Toledo & Siletz in Oregon until December 1959.
https://oldphotoguy.com/p333085964/h12F3C992#h12f3c992
rcdryeThe railroads were constructed to deliver a specific product for a specific purpose. What was the product, and what was its purpose?
Spruce, for all the myriad aircraft that were to be powered by the flaming-coffin Liberty V-12s and sweep the Hun from the skies.
So... Away from the prairies and into the woods!
The U.S. Army funded the construction of 13 railroads in 1917/1918, of which 4 were "permanent" and 9 were "temporary". One of the "temporary" ones lasted until 1959, long after the "permanant" ones were gone. Equipment included at least one geared locomotive lettered for the Army.
The railroads were constructed to deliver a specific product for a specific purpose. What was the product, and what was its purpose?
rcdrye-- Right on the money and a great answer
RSC-14
1783-1782 (ex 3888 and 3886) in a scenic view Black Point, NS 5/25/1987 Tom Nemeth/Joseph Testagrose Collectionh
1754 Moncton, NB November 17, 1994 Preserved at Salem & Hillsborough
1760 above and 1761 show two different paint schemes same year, same location.
The Original RS-18 before the modifications
Canadian Railway Museum Exporail
3684 RS-18 MLW 82226 1/1958
September 24, 2018
Canadian National converted 38 MLW RS18s fom 1800 HP B-B units to 1400 HP A1A-A1A units by using trucks recovered from scrapped MLW RSC-13s and RSC-23s. The new configuration was referred to as RSC-14. The horespower change, to accomodate slightly smaller motors, was done by changing the fuel injector settings. They were used on light rail branch lines in the Maritimes including Prince Edward Island. All were retired by 1996, though some went earlier, including a couple sold for use in Jamaica.
Alrighty then-- These unique units, 38 of them!, were modified for light branchlines with A-1-A trucks, de-rated to 1400 HP, fuel tanks reduced from 1,000 gallons to 700 gallons and the sand box to half size.
What were they originally, where did the A-1-A trucks come from and of course what were the redesigned locomotives new designation
Geez, I got one of rcdrye's questions.. I feel like a chess master!
Of course it was that Zane Grey tip combined with being a Rock Island afficiando.
I will post a question some point before lunch today. Stand by!
Miningman Perhaps the Rock Island Plainsman Twin Cities- KC cut back from Twin Cities-Houston Twin Star Rocket.
Perhaps the Rock Island Plainsman Twin Cities- KC cut back from Twin Cities-Houston Twin Star Rocket.
Other possible names from Zane Grey books (especially in the 1960s...):
The Wanderer of the Wasteland
The Wilderness Trek
One of the last pre-Amtrak trains to get a new name, this train was the result of two cutbacks removing two thirds of its run making the old name misleading. The name, which comes from a Zane Grey novel, fits the region where the train ran.
The Harlem River Local Service you refer to is the service I was asking for, and I was specific that initially it was operated to the East 129th Streeet Elevated Station, then cut back to Willis avenue when The Bronx portion of the 3rd Avenue Elevated was electrified in 1903 and the Willis Avenue - 129th Street Shuttle inaugurated. I wrote that it was electrified with the Hell Gate Bridge Line electrfication, not that it ever ran across the bridge, which the new service will do.
Track 5 at the New Rochelle station was the track for it to end and begin its runs.
The very beautiful stone Pelham Manor Station housed a huge and beautifully sceniced O-gauge model railroad with its own electric division. Fontain Fox's "P" streetcar line, part of the Third Avenue Railway Sysstem, Served the Pehlam Manor Station, as well as the existing Pelham Station and also crossed Boston Post Road, where one could transfer to the "A" northeast to New Rochelle or southwest to E. 241st St. White Plains Rd (Av.) and the IRT Subway.
Harlem River Local service ended in 1931. Shortly aferward, while keeping the track, the IRT replaced the elevated shuttle with a one-block covered walkway from the then remaining Willis Avenue platform to the 133rd Street Elevated Station.
Your question.
New Haven operated Harlem River line local service until some time after NYW&B opened, but never operated it to Penn Station. Only through trains with PRR operated over Hell Gate Bridge. The current M-N plan is to offer service to several stations on the Harlem River line en route to Penn Station. Expectation is that traffic will be fairly well balanced inbound and outbound even during rush hours.
Over, the Central was not involved. Both this service, for what it was, and the entire NYW&B financial disaster (with the subway city-built connection only now in part being realized, and only in part and way too late) were attempts by the NYNH&H to avoid paying the Central fees for use of GCT and the Woodlawn - GCT tracks , for suburban service anyway. The initial service used Forney tank engins with elevated-sized open-platform coaches. These were moved to Hartford - Middletown suburban service when the elevated was electrified (1903) and replaced by regular open-platform coaches and steam, running only Willis Avenue and not using the elevated track, served by the Willis - 129th El shuttle. It remained steam until the Hell Gate Bridge route was electrified. When the NYW&B was opened, that railroad share this route's tracks and low-level platform stations, Hunters (Hunts?) Point Avenue - Willis Avenue and provided the majority of the service at these The Bronx stations.
I think I knew about the Suburban Railroad connection to the Put ... but if I understand rcdrye correctly, he's saying NEW YORK CENTRAL is involved, even if allowing New Haven trackage rights via a different route from the 'direct' New Haven connection...
NYNH&H's Harlem River branch is in daily use by Amtrak. New stations along the line are supposed to be ready in 2020 or 2021. The new stations, along with some Penn Station slots opening up after LIRR's East Side Access to Grand Central is completed, will bring Metro-North trains from the New Haven line into Penn Station.
A footnote there is that the M-N cars will run off the LIRR third rail in Penn. A short extension of the third rail will be added from Harold Interlocking to CP Gate at the foot of the Hell Gate incline. M-N trains will be able to operate into Penn without using Amtrak's 25 Hz wire, which begins westbound at Gate.
None of what you posted regards the service that was compatitive between endpoints to the NYW&B. The NYW&B did cut-back service, back from Portchester to New Rochelle, since in that zone its stations were adjacent to or shared with the NYN&H. The only part of the NYW&B that sees service today is the 5 between E180 and Dyre Avenue. The main line between Dyre and Mt. Vernon Jc. and the branches to White Plains and to New Rochelle and Portchester were ripped up before WWII.
The service I am looking for still has all its track in place (except for the steam-age service on elevateds' tracks) and is used by many passenger trains except for the approach to the Willis Avenue service, and will see more passenger trains in the future.
IRT took over the portion between 180th and Kingsbridge Rd. NYW&B cut back the service from Willis Ave. to Kingsbridge Rd and what is now the end of the A division's Dyre Avenue line. Only the short section between Kingsbridge Rd and the NYW&B/NYNH&H main line has no service today. I think the connecting track you're referring to is at the 180th st station.
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