15” ga wheel standards

Discuss park gauge trains and large scale miniature railways having track gauges from 8" to 24" gauge and designed at scales of 2" to the foot or greater - whether modeled for personal use, or purpose built for amusement park operation or private railroading.

Moderators: Glenn Brooks, Harold_V

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Topics may include: antique park gauge train restoration, preservation, and history; building new grand scale equipment from scratch; large scale miniature railway construction, maintenance, and safe operation; fallen flags; track, gauge, and equipment standards; grand scale vendor offerings; and, compiling an on-line motive power roster.
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Glenn Brooks
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15” ga wheel standards

Post by Glenn Brooks » Fri Jan 21, 2022 12:26 am

Really need some assistance with this one.

We are starting to build 15” ga switches, for the Arizona railway project. We’ve got 3”, 4”, and 5” scale equipment that all wants/needs to run on the same track.

So anybody have experience with 1/4 scale or 1/3 rd scale wheel sets operating on Eric Thompson's 5” scale wheel standards?

Really like to hear your experiences.

Thanks
Glenn
Moderator - Grand Scale Forum

Motive power : 1902 A.S.Campbell 4-4-0 American - 12 5/8" gauge, 1955 Ottaway 4-4-0 American 12" gauge

Ahaha, Retirement: the good life - drifting endlessly on a Sea of projects....

rkcarguy
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Re: 15” ga wheel standards

Post by rkcarguy » Fri Jan 28, 2022 4:12 pm

Glenn,

Just speaking out my hind end, but I would say to go with the 15" gage standards being that regardless of scale, everything is going to be running on your 15" gage track. If you start fudging the #'s too much, everyone's 15" stuff isn't going to be able to run anywhere else....if there is or will be anywhere else. I appears your turnout in your other thread has threaded rods and nuts on the guardrails, so they can be adjusted?

Glenn Brooks
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Re: 15” ga wheel standards

Post by Glenn Brooks » Fri Jan 28, 2022 11:48 pm

Ryan, yes, threaded track bolts for the guards rails. So we plan on testing and adjusting as necessary to get a proper wheel alignment. We decided to adopt the bill Daney- Eric Thompson 5” track standard, although I still have some reservations. We found via Facebook that many more 3” and 4” scale 15” ga locos are in hobbyist hands than 5” stuff. These will be 1/4 scale and 1/3rd scale respectively. We think these size locos are more suitable for travel and expect to see a couple of visitors when we offer our first steam up in a year or two...

Also, after we have a season running 1/3 and 1/4 scale we may adjust our standards to favor the smaller flange size. But for starters we will stay with the 1/2” x11/16 “ flange standard.

One other interesting note: it’s clear that 5” scale is restricted to a few commercial, passenger carrying railroads, such as Redwood Valley, whereas most 3” and 4” scale RRways are club or hobbyest oriented. Not universal but a pretty clear distinction between the scales.

We may also also make a standard 5” scale wheel pattern on smaller 8” wheels, simply to solve the flange problem... but, one thing at a time...first we need to know how much is really necessary...
Moderator - Grand Scale Forum

Motive power : 1902 A.S.Campbell 4-4-0 American - 12 5/8" gauge, 1955 Ottaway 4-4-0 American 12" gauge

Ahaha, Retirement: the good life - drifting endlessly on a Sea of projects....

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cbrew
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Re: 15” ga wheel standards

Post by cbrew » Mon Jan 31, 2022 8:28 am

Glenn, have you reached out to the folks down in Reedley Cal.
https://www.hillcrestreedley.com/5-scal ... -standards
If it is not live steam. its not worth it.

Glenn Brooks
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Re: 15” ga wheel standards

Post by Glenn Brooks » Mon Jan 31, 2022 10:40 am

Carew,

Yes, I emailed them but never received a reply.

Glenn
Moderator - Grand Scale Forum

Motive power : 1902 A.S.Campbell 4-4-0 American - 12 5/8" gauge, 1955 Ottaway 4-4-0 American 12" gauge

Ahaha, Retirement: the good life - drifting endlessly on a Sea of projects....

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cbrew
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Re: 15” ga wheel standards

Post by cbrew » Mon Jan 31, 2022 11:09 am

may need to call, there is a number under contact on the website.
if that is not fruitful, I will make contact on the back channels
If it is not live steam. its not worth it.

Glenn Brooks
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Re: 15” ga wheel standards

Post by Glenn Brooks » Tue Feb 01, 2022 12:56 pm

Cbrew, Thanks, I think we’ve nailed down the various factors through other sources. We received a number of replies from the FB 15” group that confirmed our flange and wheel geometry. So adjusted our max 5” scale standard accordingly.

Now working on track fastenings (spike screws and rail clips) for mainline and secondary siding track construction.

Btw were headed toward field testing 4x5x32” cement cross ties...

Glenn
Moderator - Grand Scale Forum

Motive power : 1902 A.S.Campbell 4-4-0 American - 12 5/8" gauge, 1955 Ottaway 4-4-0 American 12" gauge

Ahaha, Retirement: the good life - drifting endlessly on a Sea of projects....

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Curtis_F
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Re: 15” ga wheel standards

Post by Curtis_F » Mon Feb 21, 2022 12:16 pm

Glenn Brooks wrote:
Mon Jan 31, 2022 10:40 am
Yes, I emailed them but never received a reply.
Glenn,
I just went looking for and found your FaceBook message to me about track specs and finally responded. :cry:

I'm very much behind on personal communications. Feel free to drop me a line at Curtis@HillcrestShops.com for this project.

Cheers,
Curtis
25+ Years of SolidWorks experience...now I feel old.
"You can lead a horse to water, but you can't make him drink."
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