Re-gauge N Gauge steam to HOn3. HELP!!

Discussion in 'Narrow Gauge Model Railroading' started by jon6516, Aug 7, 2005.

  1. Triplex

    Triplex Active Member

    Aug 24, 2005
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    I think the Uintah 2-6-6-2s, once converted to tender engines by the Sumpter Valley, were slightly larger - the largest North American 3' power.

    I do recall reading that the line the Mexican 2-6-6-2s were built for was regauged in the early 50s. I'm not sure of their fate after that.
  2. pjb

    pjb Member

    Dec 22, 2000
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    Big Narrow Gauge Steamers

    The FdeM had modern mallets as noted, and also
    some very nifty twelve wheelers from the 1920s
    which were about as uncommon as camelbacks
    on the three feet gauge.
    The largest narrow gauge articulateds were
    mostly Garrats from SAR, Oz, and southeast
    African nations.

    The biggest western hemispere mallets were
    the modern Brazilian yellowstones. At least a pair
    of these have been preserved , and one was
    operated by a fan/museum line.
    They are running into the same difficulties found in Canadian/US circles associated with these large
    preserved operating steamers, that are not owned
    and operated by a real railroad. Namely, that:
    they require lots of effort ($ i.e.) to maintain
    and operate; the guys who own the mainlines
    don't want to let them run their excursions behind
    big steam; and the governments, that provide
    taxpayer assistance to museums, argue that people
    can have rewarding historical experiences behind
    ten wheelers and pacifics. The latter can handle
    daily operations over the preserved museum
    trackage adequately at far less expense.

    There is a logic behind this, since the 2-8-8-4
    is overkill on four passenger cars, without regard
    to the wear and tear on the physical plant,
    or its direct operating costs, that will eat up
    any revenue generated by museum fares.

    It really can only strut itself with a cast of
    thousands in attendance watching it hauling
    vintage freights and large passenger trains over
    mainlines. A buffs delight ... but only possible
    irregularly, when you can round up a lot of paying customers, and some cooperative mainline
    owning railroad company of the appropriate gauge.

    This is the same problems we have over here.
    The UK, Germans, Poles, Indians and, it now
    appears, the Russians - have solved it :thumb:by direct
    governmental funding and/or control over the
    decisions as to access to running track.
    Good-Luck, PJB
  3. nkp174

    nkp174 Active Member

    Oct 11, 2006
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    You might want to check out the On30->On3 conversions. I've regauged wheels by pulling them off and placing them on new axles (won't do that again). I've also done it with a NWSL gear being careful.

    If you need to widen them by 3/4mm per side, determine how many revolutions that would be on the gear puller. I tend to think it was 3 2/3 turns per side for On30->On3. If you are then nervous about the void, add JB Weld to fill it. That has been done be several people in On3. Then there is no need to quarter.

    John Maxwell's son sells plans for the proposed 2-8-8-2s of the D&RGW and RGS. Yes, the C&S did evaluate 2-10-2s and well as purchasing the Uintah mallets. I tend to recall that the Uintah engines were larger and more powerful engines than the Mexican least on paper...but not by much. They were both fine locomotives...and I doubt that any were ever attached to a dynamometer car (which means we don't really know how their performance truly compared). The Uintahs were cut up in Central America :-(